CN102021905B - Extruding-expanding device and method for pile foundation - Google Patents
Extruding-expanding device and method for pile foundation Download PDFInfo
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- CN102021905B CN102021905B CN 201010607154 CN201010607154A CN102021905B CN 102021905 B CN102021905 B CN 102021905B CN 201010607154 CN201010607154 CN 201010607154 CN 201010607154 A CN201010607154 A CN 201010607154A CN 102021905 B CN102021905 B CN 102021905B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002689 soil Substances 0.000 claims abstract description 67
- 230000007547 defect Effects 0.000 abstract 1
- 238000005056 compaction Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention relates extruding-expanding device and method for a pile foundation. The device comprises a supporting device and an extruding-expanding arm connected with the supporting device, wherein the extruding-expanding arm comprises a telescopic expanding arm. The extruding-expanding device and method for the pile foundation overcome the defects of a single-cylinder one-way extruding-expanding device and a double-cylinder two-way extruding-expanding device and prevent the soil mass from falling in an arm with a box-shaped section; the telescopic extruding-expanding arm always contacts the soil mass, and the soil mass is fully compacted; the horizontally-projected area of an extruded disk cavity is larger; and the bearing capacity of an extruding-expanding pile is larger.
Description
Technical field
The present invention relates to a kind of pile foundation with extruding-spreading device and squeezed method, particularly a kind of hydraulic telescopic type extruding-spreading device and method.
Background technology
At present, in basic engineering construction, normally form by squeeze equipment the stake that branches off with force bearing disk, load; The structure of existing extruding-spreading device is: be comprised of head, hydraulic station control system and onboard system etc.Its head is comprised of cylinder system, squeezed arm, pressure sensor etc.Squeezed arm is comprised of upper squeezed arm, lower squeezed arm.Upper squeezed arm and lower squeezed arm are generally stiffening members, are non-telescoping structure.The unidirectional squeezed equipment of a kind of single cylinder wherein, referring to Fig. 1, its upper arm AB, and underarm BC, A B the C movement locus as follows:
The A point, x=0, y=↓;
The B point, x=←, y=↓;
The C point, x=0, y=0;
As shown in drawings, when its unidirectional soil compaction, soil compaction underarm lower end is motionless, and soil compaction upper arm upper end is down moved by active force, makes two soil compaction limbs expand outwardly extrusion soil.Obviously, the soil compaction underarm only has rotation, and the soil compaction upper arm also has translation except rotating.Force bearing disk upper wheels profile is curve, and the bottom is straight line.The soil compaction upper arm is similar to extruding and the two-way soil compaction of pile peripheral earth, namely along with the increase of the angle θ of soil compaction arm limb and vertical direction, breaks away near soil compaction arm portion and the soil of pile body, and the brachium x that contacts with soil reduces gradually.And the work of soil compaction underarm the time only rotates, all keep in touch (x=L with the soil body in whole soil compaction process, L is the length of soil compaction underarm), thereby make the native compressed degree of trying to get to the heart of a matter larger than the upper soil of dish, this vertical carrying for stake is highly beneficial, in its brachium scope, larger from the distance of pile body, the compressed degree of the soil body is higher.But in squeezing process, squeezed arm top produces " facing the dead zone ",
The easy slump of the soil body should be located, and sediment can be increased.
Also having another kind is the two-way squeeze equipment of twin-tub, participates in Fig. 2, its upper arm AB, reaches underarm BC, A B the C movement locus as follows:
The A point, x=0, y=↓;
The B point, x=←, y=0;
The C point, x=0, y=↑;
During the twin-tub Bidirectional-squeezing, along with the increase of the angle θ of soil compaction arm limb and vertical direction, throw off mutually with the soil body near underarm on the soil compaction of pile body, can not play the effect of extrusion soil; After two-way soil compaction equipment is squeezed into dish, coiling top and the bottom outline line almost symmetry, is namely that asteroid is straightway away from pile body near pile body.The compression situation of the dish up and down soil body is also substantially identical, and wherein large away from the compressed degree of the soil body of pile body, load-carrying properties are good; And near the soil body of pile body, compressed degree less, load-carrying properties are relatively relatively poor, and easily fall soil because compaction herein is low.For the stake of bearing vertical load, the character of the lower soil body of dish is the key factor that determines bearing capacity of single pile.During Bidirectional-squeezing, along with the increase of angle, throw off mutually with the soil body near underarm on the soil compaction of pile body, the effect of extrusion soil is relatively relatively poor.
Therefore, its extruding degree to the soil body of present squeeze equipment is all not ideal enough, affects the force bearing disk bearing capacity of pile, and easily makes soil body slump produce sediment.
Summary of the invention
For the squeezed arm of the squeeze equipment that solves above-mentioned prior art breaks away from the soil body, its compaction is lower, the invention provides a kind of pile foundation with extruding-spreading device and squeezed method.
Technical scheme of the present invention is: a kind of pile foundation extruding-spreading device comprises catching device and the squeezed arm that is connected with described catching device; Its special character is: described squeezed arm comprises scalable expansion arm.
Above-mentioned scalable expansion arm comprises the first arm, the second arm and hydraulic cylinder; The second arm is socketed in the first arm, and the first arm and the second arm are socketed by hydraulic cylinder.
Above-mentioned hydraulic cylinder is arranged at the inner chamber of the first arm and the second arm; Cylinder barrel one end of described hydraulic cylinder is connected with described the first arm, and its piston rod one end is connected with described the second arm or cylinder barrel one end of hydraulic cylinder is connected with described the second arm, and its piston rod one end is connected with described the first arm.
Above-mentioned the second arm and catching device are hinged, and the first arm can be flexible along the outer wall of described the second arm, and perhaps the first arm and catching device are hinged, and the second arm can be flexible along the inwall of described the first arm.
The cross section of above-mentioned the first arm and the second arm is box-type section, specifically polygon or ellipse or rectangle or trapezoidal box-type section.
Above-mentioned squeezed arm also comprises non-telescoping expansion arm; One end and the described catching device of described non-telescoping expansion arm are hinged, and its other end is hinged by bearing pin and described scalable expansion arm; The other end of described scalable expansion arm is hinged by bearing pin and catching device.
Above-mentioned squeezed arm comprises flexible expansion arm and lower flexible expansion arm; Described flexible expansion arm and lower flexible expansion arm are hinged by bearing pin; The other end of described flexible expansion arm and lower flexible expansion arm is hinged with the top and bottom of catching device respectively.
Above-mentioned upper and lower flexible expansion arm number equates, and number is a plurality of.
Above-mentioned scalable squeezed arm also comprises slide block; Described slide block comprises the first slide block and the second slide block; Described the first slide block is arranged on the first arm inside wall and a end that the second arm is connected; Described the second slide block is arranged on the second arm lateral wall and a end that the first arm is connected.
The technical problem that exists in order to solve prior art, the present invention also provides a kind of pile foundation squeezed method, and it mainly comprises the following steps:
1) form the pile body straight hole;
2) extruding-spreading device is stretched in straight hole, driving extruding-spreading device stretches out its scalable expansion arm and drives itself and another scalable expansion arm or the pin joint of non-telescoping expansion arm hinged place extends out, the soil body with scalable expansion arm and/or non-telescoping expansion arm contact is outwards moved, form a load trouble chamber;
3) the scalable expansion arm of retracting, scalable expansion arm and/or the non-telescoping expansion arm of rotation extruding-spreading device make other positions at its same absolute altitude place in straight hole squeezed;
4) repeating step 2) to step 3), complete the squeezed of a force bearing disk chamber.
Above-mentioned steps 2) specifically realized by following methods:
2.1) extruding-spreading device is stretched in straight hole;
2.2) drive the hydraulic cylinder of scalable expansion arm, when the first arm of scalable expansion arm is connected with catching device, stretch out the second arm, its second arm is extended out along the pin joint of itself and another scalable expansion arm or non-telescoping expansion arm hinged place; When the second arm of scalable expansion arm is connected with catching device, stretch out the first arm, its first arm is extended out along the pin joint level of itself and another scalable expansion arm or non-telescoping expansion arm hinged place.
Said method step 4) also comprise afterwards step 5) vertical mobile extruding-spreading device, repeating step 2), form another load trouble chamber.
Said method step 4) also comprise afterwards step 6) vertical mobile extruding-spreading device, repeating step 2) to step 4), form the squeezed of another force bearing disk chamber.
Pile foundation provided by the invention has following characteristics with extruding-spreading device and squeezed method:
1, pile foundation of the present invention has overcome the shortcoming of the unidirectional extruding-spreading device of single cylinder and the two-way extruding-spreading device of twin-tub with extruding-spreading device, has absorbed again their advantage.Adopt hydraulic cylinder to realize the flexible of squeezed arm and flexible expansion arm cross section arm hinged end sealing up and down, prevent that the soil body from dropping in the box-type section arm, it allows the second arm external part make the slope shape with squeezed arm the first arm in addition, is convenient to the moulding in hour indicator chamber in soil body squeezing process.
2, the forms of motion that stretches out that stretches out the flexible squeezed arm of drive of hydraulic fluid cylinder pressure of the present invention, during work, the soil body that the squeezed arm in up and down is contacted all is squeezed, can guarantee not fall after squeezed at layer of sand or other soil layers or minus soil, and flexible squeezed arm contacts with the soil body all the time, and the soil body obtains abundant compacting.If the squeezed arm in up and down is telescopic arms, the squeezed arm hinge in up and down is only moved horizontally and supreme lower motion.
3, pile foundation of the present invention is strengthened near the trouble chamber of pile body, the dish chamber soil body with squeezed method, bearing capacity of pile foundation is improved favourable, also is conducive to prevent from expanding dropping of arm and the soil body disengaging place soil body.The inventive method has absorbed unidirectional advantage when squeezed of single cylinder, its soil compaction underarm keeps in touch with the soil body all the time, therefore the lower soil body of dish can obtain the fully advantage of extruding, also made up single cylinder unidirectional squeezed in the problem that disengages of upper squeezed arm and the soil body cause existing the problem of facing the dead zone, reduced the problem that the soil body caves in.
If Shang Xia 4, catching device is connected with inside and outside piston rod in the twin-tub two-way device respectively, namely this device is combined with common twin-tub two-way device, if compare two-way cylinder with simple common twin-tub two-way device and inside and outside piston rod is equal in length, it is larger that squeezed method of the present invention is extruded into dish chamber horizontal projected area, and its extruded and extended pile bearing capacity is larger.
Description of drawings
Fig. 1,2 is squeezed arm movement locus in prior art;
Fig. 3 is apparatus structure schematic diagram of the present invention;
Fig. 4 .1～4.4 are squeezed arm configuration schematic diagram of the present invention;
Fig. 5 .1～5.5 are the second embodiment structural representation of the present invention;
Fig. 6 a, 6b are the third embodiment structural representation of the present invention;
Fig. 7 is the squeezed arm movement locus of the present invention.
In figure: the 1-catching device; The squeezed arm of 2-; 3-the first arm; 4-the second arm; The 5-hydraulic cylinder; The 6-slide block; 7-the first slide block; 8-the second slide block; The upper flexible arm that expands of 9-; The flexible arm that expands under 10-; The upper tray of 11-; Tray under 12-; The vertical hydraulic cylinder of 13-; 14-piston in hydraulic cylinder bar; 15-hydraulic cylinder outer piston bar; The non-telescoping expansion arm of 16-; The scalable expansion arm of 17-; The 18-bearing pin.
The specific embodiment
A kind of pile foundation extruding-spreading device involved in the present invention, its preferred embodiment is as follows:
The first embodiment
Referring to Fig. 3 and Fig. 4 .1～4.4, this device comprises catching device 1 and the squeezed arm 2 that is connected on catching device 1; Catching device 1 of the present invention can adopt existing catching device 1 structure; And squeezed arm 2 of the present invention comprises scalable expansion arm 17; Wherein scalable expansion arm 17 comprises the first arm 3 and the second arm 4; The second arm is socketed in the first arm and the first arm 3 be socketed by hydraulic cylinder with the second arm 4, and it realizes flexiblely by Driven by Hydraulic Cylinder, and when hinged, the first arm 3 can stretch along the outer wall of the second arm 4 when the second arm 4 and catching device 1; Perhaps when the first arm 3 and catching device 1 were hinged, the second arm 4 can be flexible along the inwall of the first arm 3.In addition, hydraulic cylinder 5 can be arranged at the inner chamber of the first arm 3 and the second arm 4, its cylinder barrel one end is connected with the second arm 4, its piston rod one end is connected with the first arm 3, as shown in Fig. 4 .1,4.2, also can be with hydraulic cylinder 5 reverse grafts, namely its cylinder barrel one end is connected with the first arm 3, its piston rod one end is connected with the second arm 4, as shown in Fig. 4 .3 and Fig. 4 .4.Be set to seal in telescopic cavity of the present invention, the i.e. end sealing that is connected with catching device 1 of the first arm 3 or the second arm 4, and on the first arm 3 and the second arm 4, slide block 6 is set, an end that specifically is connected with the second arm 4 at the inside wall of the first arm 3 arranges the first slide block 7, and an end that is connected with the first arm on the lateral wall of the second arm 4 arranges the second slide block 8; When telescopic arm is worked like this, come transfer function power by slide block effect and extruding.Hydraulic cylinder can be general common oil cylinder, can be also oil cylinder or the multistage ram with force-increasing mechanism.
Extruding-spreading device of the present invention can arrange a plurality of squeezed arms 2, and a plurality of flexible expansion arms 9 and lower flexible expansion arm 10 namely are set, and upper flexible expansion arm 9 is connected by bearing pin 18 with lower flexible expansion arm 10; The upper flexible arm 9 that expands is connected with the top and bottom of catching device 1 respectively with the other end of lower flexible expansion arm 10.Upper flexible expand arm 9 and the end sealing that lower flexible expansion arm 10 is connected with catching device respectively prevent that the soil body from dropping in arm.The upper flexible arm 9 that expands allows the second arm external part make the slope shape with lower flexible its first arm of expansion arm 10 links, is convenient to the moulding in hour indicator chamber in soil body squeezing process.
The cross section of the first arm 3 of the present invention and the second arm 4 can be set to box-type section, specifically the box-type section of hexagon, ellipse, octagon, rectangle, Rouno Cormer Pregrinding Wheel rectangle, trapezoidal or U-shaped etc. all can, also it can be designed to soil body contact side cross section is circular shape, the soil body is extruded into arcuation, more is conducive to soil stabilization.
Catching device 1 of the present invention comprises lower tray 12 and upper tray 11, and namely the upper flexible arm 9 that expands is connected on tray 11, and lower flexible expansion arm is connected on lower tray 12.
Upper and lower flexible expansion arm 9 of the present invention, 10 squeezed track such as the phase I in accompanying drawing 7, upper arm AB, and underarm BC, A B the C movement locus as follows:
Phase I, in flexible expansion arm, hydraulic cylinder stretches out
The A point, x=0, y=0;
The B point, x=←, y=0;
The C point, x=0, y=0;
As seen in phase I of squeezed track, A, C point is motionless, hydraulic cylinder due to the scalable expansion arm 17 of hydraulic oil input, cylinder barrel or piston rod stretch out, drive simultaneously the telescopic box-type section arm elongation of scalable expansion arm 17, due to upper flexible expansion arm 9 and lower flexible expansion arm 10 simultaneous retractables, the B point is along level to rectilinear motion, when the elongation of hydraulic jack reaches capacity, the elongation of scalable expansion arm 17 also reaches capacity, the B point reaches B ' point, and because scalable expansion arm 17 contacts with the soil body all the time, the soil body obtains abundant compacting.In flexible squeezed arm, its hydraulic fluid port of hydraulic cylinder is arranged at equipment centre of form side.
In squeezing process, in scalable expansion arm 17, scalable box-type section arm is subjected to curved, and its inner hydraulic cylinder pressurized that arranges.This extruding-spreading device has overcome the shortcoming of the unidirectional extruding-spreading device of single cylinder and the two-way extruding-spreading device of twin-tub, has absorbed again their advantage.The forms of motion that stretches out that stretches out the scalable expansion arm 17 of drive of hydraulic fluid cylinder pressure, during work, upper and lower flexible expansion arm 9,10 hinges only move horizontally and supreme lower motion, upper and lower flexible expansion arm 9,10 soil bodys that contact all are squeezed, can guarantee not fall after squeezed at layer of sand or other soil layers or minus soil.
The second embodiment
Only be the different of catching device 1 from the difference of the first embodiment, the catching device 1 in the present embodiment comprises tray 11 and lower tray 12 and vertical hydraulic cylinder 13; Referring to Fig. 5 .1 to Fig. 5 .3, vertical hydraulic cylinder 13 has the piston in hydraulic cylinder of comprising bar 14 and hydraulic cylinder outer piston bar 15; Upper tray 11 is connected with hydraulic cylinder outer piston bar 15, and lower tray 12 is connected with piston in hydraulic cylinder bar 14; The inside and outside piston rod 14 of hydraulic cylinder, 15 close cylinder barrel sides all are arranged on the top of squeezed arm 2, and piston in hydraulic cylinder bar 14 is relative with the driving direction of hydraulic cylinder outer piston bar 15, flexible further squeezed action of expanding arm 9 and lower flexible expansion arm 10 in realization.
Referring to Fig. 5 .4a, Fig. 5 .4b, catching device comprises housing, two the vertical hydraulic cylinders 13 in up and down.Two the vertical hydraulic cylinders 13 in up and down are connected by housing, and namely one is arranged on squeezed arm 2 tops, and another is arranged on the below of squeezed arm 2, the connected mode of itself and squeezed arm 2 and above-mentioned similar.Referring to Fig. 5 .4a, after the abundant elongation of scalable expansion arm 17 reaches capacity, the upper tray 11 that vertical hydraulic cylinder 13 drives catching device 1 is done move toward one another with lower tray 12, so the movement locus of squeezed arm 2 becomes A ' B by A B ' "; become C ' B by CB ' ", two-way squeezed identical in this part and current techniques, the trouble chamber forms.When the hydraulic jack retraction, drive simultaneously the retraction of scalable expansion arm 17, vertical hydraulic cylinder 13 is done opposite motion, and extruding-spreading device is squeezed complete.Extruding-spreading device repeats reciprocal flow process through rotation, formation dish chamber.
Fig. 5 .4b, upper flexible expansion arm 9 with vertical hydraulic cylinder 13 is hinged up and down, is provided with the hole that can allow squeezed arm 2 stretch out with lower flexible expansion arm 10 on housing.When flexible expansion arm extended length reached capacity, vertical hydraulic cylinder 13 effects, ordered about the some move toward one another that squeezed arm 2 is connected with catching device 1 up and down, makes it further squeezed.Can also stretch expand flexible and two vertical hydraulic cylinders 13 of hydraulic cylinder in arm expanding-contracting action alternately or synchronize and carry out, form load trouble chamber identical with above-mentioned operating principle, the extruding-spreading device process is rotated, and repeats reciprocal flow process, formation dish chamber.
Referring to Fig. 5 .5, catching device 1 can also be housing, vertical hydraulic cylinder 13, on its housing with the hole that can stretch out for squeezed arm.Upper flexible expand arm 9 and be arranged at housing in hydraulic cylinder directly be connected, lower flexible expansion arm 10 is connected with the housing bottom.When stretching out of hydraulic cylinder in scalable expansion arm reached capacity, this moment, vertical hydraulic cylinder 13 began to stretch, flexible further squeezed action of expanding arm 9 and lower flexible expansion arm 10 in realization.Can also make the flexible expanding-contracting action of the flexible and vertical hydraulic cylinder 13 of hydraulic cylinder that expands in arm replace or synchronize and carry out.
Squeezed track such as the accompanying drawing 7 of upper and lower flexible expansion arm 9 of the present invention, 10 rails, upper arm AB, and underarm BC, A B the C movement locus as follows:
Phase I, in flexible expansion arm, hydraulic cylinder stretches out,
The A point, x=0, y=0;
The B point, x=←, y=0;
The C point, x=0, y=0;
Vertical 2 hydraulic cylinder synchronous of second stage are stretched out,
The A point, x=0, y=↓;
The B point, x=←, y=0;
The C point, x=0, y=↑;
The phase I action can replace or synchronously carry out in the second stage action.
The third embodiment
Referring to Fig. 6 a, 6b, squeezed arm 2 of the present invention can also be set to non-telescoping expansion arm 16 and be connected up and down to realize with scalable expansion arm 17, specifically: an end and the catching device 1 of non-telescoping expansion arm 16 are hinged, and its other end is hinged by bearing pin 18 and scalable expansion arm 17; The other end of scalable expansion arm 17 is hinged by bearing pin 18 and catching device 1, can non-telescoping expansion arm 16 is hinged by bearing pin 18 with the upper tray 11 of catching device 1, and scalable expansion arm 17 is hinged by bearing pin 18 with lower tray 12; Otherwise also can, scalable expansion arm 17 is hinged by bearing pin 18 and upper tray 11, and non-telescoping expansion arm 16 is hinged with the lower tray 12 of bearing pin 18; And scalable expansion arm 17 is also hinged by bearing pin 18 with non-telescoping expansion arm 16, can relatively rotate.
The scalable expansion arm 17 of the present embodiment and the structure of the scalable expansion arm 17 in first and second kind embodiment are identical.
As shown in accompanying drawing 6.a, if upper squeezed arm is scalable squeezed arm, lower squeezed arm is non-telescoping squeezed wall, the tie point of upper squeezed arm and catching device by the tie point of Driven by Hydraulic Cylinder and time squeezed arm and catching device by Driven by Hydraulic Cylinder, two tie points are done the situation of move toward one another with identical speed, upper arm AB, and underarm BC, A B the C movement locus as follows:
Phase I, in flexible expansion arm, hydraulic cylinder stretches out,
The A point, x=0, y=0;
The B point, x=←, y=↓;
The C point, x=0, y=0;
Second stage, vertical 2 hydraulic cylinder synchronous are stretched out,
The A point, x=0, y=↓;
The B point, x=←, y=0;
The C point, x=0, y=↑;
Can also stretch and expand in arm the expanding-contracting action of the flexible and vertical hydraulic cylinder of hydraulic cylinder and replace or synchronize and carry out.Be that the phase I action can replace or synchronously carry out in the second stage action.
As shown in accompanying drawing 6.b, if lower squeezed arm is scalable squeezed arm, upper squeezed arm is non-telescoping squeezed arm, the tie point of upper squeezed arm and catching device is moved downward with certain speed by Driven by Hydraulic Cylinder, lower squeezed arm is connected with the catching device middle shell, and the relative transfixion of tie point, upper arm AB, and underarm BC, A B the C movement locus as follows:
Phase I, in flexible expansion arm, hydraulic cylinder stretches out,
The A point, x=0, y=0;
The B point, x=←, y=↑;
The C point, x=0, y=0;
Second stage, vertical hydraulic cylinder stretches out,
The A point, x=0, y=↓;
The B point, x=←, y=↓;
The C point, x=0, y=0;
Can also stretch and expand in arm the expanding-contracting action of the flexible and vertical hydraulic cylinder of hydraulic cylinder and replace or synchronize and carry out.Be that the phase I action can replace or synchronously carry out in the second stage action.
The present invention also provides a kind of pile foundation squeezed method, and it is mainly realized by following steps:
Step 1) form the pile body straight hole;
Step 2) extruding-spreading device is stretched in straight hole, driving extruding-spreading device stretches out its scalable expansion arm and drives itself and another scalable expansion arm or the pin joint of non-telescoping expansion arm hinged place extends out, the soil body with scalable expansion arm and/or non-telescoping expansion arm contact is outwards moved, form a load trouble chamber.Specifically comprise:
2.1) extruding-spreading device is stretched in the hole;
2.2) drive the hydraulic cylinder of scalable expansion arm, when the first arm of scalable expansion arm is connected with catching device, stretch out the second arm, its second arm is extended out along the pin joint level of itself and another scalable expansion arm or non-telescoping expansion arm hinged place; When the second arm of scalable expansion arm is connected with catching device, stretch out the first arm, its first arm is extended out along the pin joint level of itself and another scalable expansion arm or non-telescoping expansion arm hinged place.
Step 3) the scalable expansion arm of retracting, scalable expansion arm and/or the non-telescoping expansion arm of rotation extruding-spreading device make other positions at its same absolute altitude place in straight hole squeezed;
4) repeating step 2) to step 3), complete the squeezed of a force bearing disk chamber.
If same stake hole need to arrange a plurality of force bearing disks chambeies, with during a plurality of troubles chamber, in step 4) afterwards also in steps 5) and step 6), that is:
Step 5) vertical mobile extruding-spreading device, repeating step 2), form another load trouble chamber.
Step 6) vertical mobile extruding-spreading device, repeating step 2) to step 4), form the squeezed of another force bearing disk chamber.
Be provided with the stake hole in a plurality of loads troubles chamber and dish chamber for needs, can make up above step and realize.
Claims (12)
1. a pile foundation extruding-spreading device, comprise catching device and the squeezed arm that is connected with described catching device; It is characterized in that: described squeezed arm comprises scalable expansion arm, and described scalable expansion arm comprises the first arm, the second arm and hydraulic cylinder; The second arm is socketed in the first arm, and the first arm and the second arm are socketed by hydraulic cylinder; Described hydraulic cylinder is arranged at the inner chamber of the first arm and the second arm; Cylinder barrel one end of described hydraulic cylinder is connected with described the first arm, and hydraulic cylinder piston rod one end is connected with described the second arm or cylinder barrel one end of hydraulic cylinder is connected with described the second arm, and hydraulic cylinder piston rod one end is connected with described the first arm.
2. pile foundation extruding-spreading device according to claim 1, it is characterized in that: described the second arm and catching device are hinged, the first arm can be flexible along the outer wall of described the second arm, and perhaps the first arm and catching device are hinged, and the second arm can be flexible along the inwall of described the first arm.
3. pile foundation extruding-spreading device according to claim 2, it is characterized in that: the cross section of described the first arm and the second arm is box-type section.
4. pile foundation extruding-spreading device according to claim 3, it is characterized in that: the cross section of described the first arm and the second arm is polygon or oval-shaped box-type section.
5. pile foundation extruding-spreading device according to claim 4, it is characterized in that: described squeezed arm also comprises non-telescoping expansion arm; One end and the described catching device of described non-telescoping expansion arm are hinged, and the non-telescoping expansion arm other end is hinged by bearing pin and described scalable expansion arm; The other end of described scalable expansion arm is hinged by bearing pin and catching device.
6. pile foundation extruding-spreading device according to claim 5, it is characterized in that: described squeezed arm comprises flexible expansion arm and lower flexible expansion arm; Described flexible expansion arm and lower flexible expansion arm are hinged by bearing pin; The other end of described flexible expansion arm and lower flexible expansion arm is hinged with the top and bottom of catching device respectively.
7. pile foundation extruding-spreading device according to claim 6 is characterized in that: described upper and lower flexible expansion arm number equates, and number is a plurality of.
8. according to claim 1 and 2 or 3 or 4 or 5 or 6 or 7 described pile foundation extruding-spreading devices, it is characterized in that: described scalable squeezed arm also comprises slide block; Described slide block comprises the first slide block and the second slide block; Described the first slide block is arranged on the first arm inside wall and a end that the second arm is connected; Described the second slide block is arranged on the second arm lateral wall and a end that the first arm is connected.
One kind based on the described pile foundation of the arbitrary claim of claim 1-8 with the pile foundation of extruding-spreading device with squeezed method, it is characterized in that: comprise the following steps:
1) form the pile body straight hole;
2) the described pile foundation of the arbitrary claim of claim 1-8 is stretched in straight hole with the extruding-spreading device extruding-spreading device, driving extruding-spreading device stretches out the scalable expansion arm of extruding-spreading device and drives extruding-spreading device and the pin joint of another scalable expansion arm or non-telescoping expansion arm hinged place extends out, the soil body with scalable expansion arm and/or non-telescoping expansion arm contact is outwards moved, form a load trouble chamber;
3) the scalable expansion arm of retracting, scalable expansion arm and/or the non-telescoping expansion arm of rotation extruding-spreading device make other positions at the same absolute altitude place of extruding-spreading device in straight hole squeezed;
4) repeating step 2) to step 3), complete the squeezed of a force bearing disk chamber.
10. the squeezed method of pile foundation described according to right 9 is characterized in that: described step 2) specifically realized by following methods:
2.1) extruding-spreading device is stretched in straight hole;
2.2) drive the hydraulic cylinder of scalable expansion arm, when the first arm of scalable expansion arm is connected with catching device, stretch out the second arm, the second arm that makes scalable expansion arm extends out along the pin joint of scalable expansion arm and another scalable expansion arm or non-telescoping expansion arm hinged place; When the second arm of scalable expansion arm is connected with catching device, stretch out the first arm, scalable expansion arm the first arm is extended out along the pin joint level of scalable expansion arm and another scalable expansion arm or non-telescoping expansion arm hinged place.
11. the squeezed method of pile foundation described according to right 10 is characterized in that: described method step 4) also comprise afterwards vertical mobile extruding-spreading device, repeating step 2), form another load trouble chamber.
12. the squeezed method of pile foundation described according to right 10 is characterized in that: described method step 4) also comprise afterwards the vertical mobile extruding-spreading device of step 6), repeating step 2) to step 4), form the squeezed of another force bearing disk chamber.
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| CN 201010607154 CN102021905B (en) | 2010-12-27 | 2010-12-27 | Extruding-expanding device and method for pile foundation |
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| CN 201010607154 CN102021905B (en) | 2010-12-27 | 2010-12-27 | Extruding-expanding device and method for pile foundation |
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| CN102021905A CN102021905A (en) | 2011-04-20 |
| CN102021905B true CN102021905B (en) | 2013-06-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102162246B (en) * | 2011-05-18 | 2012-09-19 | 中铁西北科学研究院有限公司 | Vibration-less compaction method of collapsible loess foundation |
| CN110700242A (en) * | 2019-10-24 | 2020-01-17 | 江苏科星电气有限公司 | Construction device for pile end bottom expanding of electric power engineering concrete cast-in-place pile |
| CN114673143B (en) * | 2022-03-22 | 2024-04-02 | 浙江恒炜建设集团有限公司 | Municipal soft foundation road reinforcement method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258510Y (en) * | 1995-01-30 | 1997-07-30 | 苗凤阳 | Squeezing and expanding machine for bottom of immersed tube pile |
| CN1234471A (en) * | 1998-07-10 | 1999-11-10 | 贺德新 | All-intelligent multifunctional hydraulic extruding extender |
| CN2739232Y (en) * | 2004-11-05 | 2005-11-09 | 张宝成 | Pile hole extruding-reaming machine extruding-reaming arm |
| CN1800508A (en) * | 2004-12-31 | 2006-07-12 | 北京中阔科技有限责任公司 | Gradient pushing and enlarging device |
| CN201901872U (en) * | 2010-12-27 | 2011-07-20 | 李征 | Extruding and expanding device for pile foundation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1193163A (en) * | 1997-09-19 | 1999-04-06 | Masakatsu Hiramatsu | End structure of steel pipe pile and steel pipe pile construction method using the same |
-
2010
- 2010-12-27 CN CN 201010607154 patent/CN102021905B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258510Y (en) * | 1995-01-30 | 1997-07-30 | 苗凤阳 | Squeezing and expanding machine for bottom of immersed tube pile |
| CN1234471A (en) * | 1998-07-10 | 1999-11-10 | 贺德新 | All-intelligent multifunctional hydraulic extruding extender |
| CN2739232Y (en) * | 2004-11-05 | 2005-11-09 | 张宝成 | Pile hole extruding-reaming machine extruding-reaming arm |
| CN1800508A (en) * | 2004-12-31 | 2006-07-12 | 北京中阔科技有限责任公司 | Gradient pushing and enlarging device |
| CN201901872U (en) * | 2010-12-27 | 2011-07-20 | 李征 | Extruding and expanding device for pile foundation |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平11-093163A 1999.04.06 |
| 黄珊秋等.国内外异型挤扩灌注桩挤扩机具.《建筑机械》.2004,(第03期), * |
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