CN207829932U - A kind of supporting arrangement for Tunnel structure - Google Patents
A kind of supporting arrangement for Tunnel structure Download PDFInfo
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- CN207829932U CN207829932U CN201720007412.7U CN201720007412U CN207829932U CN 207829932 U CN207829932 U CN 207829932U CN 201720007412 U CN201720007412 U CN 201720007412U CN 207829932 U CN207829932 U CN 207829932U
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- anchor tube
- lock foot
- foot anchor
- connecting plate
- hole
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 238000007569 slipcasting Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000010534 mechanism of action Effects 0.000 abstract description 2
- 210000003205 muscle Anatomy 0.000 description 16
- 239000011435 rock Substances 0.000 description 10
- 238000003466 welding Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of supporting arrangements for Tunnel structure comprising profile steel frame, at least one lock foot anchor tube and connecting plate, the connecting plate are bonded with the profile steel frame；And one end of each lock foot anchor tube passes through the connecting plate, and be fixed in the tunnel surrounding.In terms of existing technologies, anchor tube need not be made to be close to the reserved steel bar on arch when the technical solution of the utility model sets anchor tube, thus reduces the difficulty that anchor tube performs；The weld seam for providing bigger performs space, is conveniently operated；The mechanism of action between lock foot anchor tube and shaped steel arch is changed, keeps the connection of the two more reliable and more stable；And manufacturing process is simple and easy to do, requires the technical capability of operating personnel low.
Description
Technical field
The utility model is related to tunnel construction field more particularly to a kind of branch installations for Tunnel structure
It sets.
Background technology
When tunnel is excavated under unfavorable geological condition, load-carrying capacity of surrounding rock deficiency is such as encountered, it may appear that preliminary bracing knot
The phenomenon that structure sinks, country rock relaxation area in top can also expand therewith at this time, cause the vault nearby deformation of country rock and stability
Reduction, be easy to cause tunnel contour line and change, to line security operation generate harm.Hair in order to prevent this phenomenon
Raw, setting locks foot anchor tube to improve bearing capacity as having during constructing tunnel at the arch springing of supporting construction steel arch-shelf in the early stage
Effect measure.Lock foot anchor tube generally squeezes into country rock from steelframe foot, and it is obliquely downward or horizontal to squeeze into direction, and anchor tube end connects with steelframe
It connects, and mortar or liquid is injected into realize the adhesive force between anchor tube and country rock in country rock, because of the increasing of this adhesive force
Add, the bearing capacity of preliminary bracing structure is increased, and avoids the sinking of structure.
However influenced by construction site complicated factor, expection, reason is often not achieved in the effect that performs of above-mentioned measure
One of be that the connection scheme of anchor tube and profile steel frame is unreasonable, work progress is not easy to operate or even can not operate, and then makes anchor
Bonding strength between pipe and steelframe is affected, and the case where partial component disengages mutually in loading process occurs.Specifically, such as
Described in Fig. 1-3, the support device of existing preliminary bracing structure includes：I-steel steelframe 200, lock foot anchor tube 300 and U-shaped steel
Muscle 400, Specific construction scheme are as follows：
I-steel steelframe 200 is performed first, and U-shaped steel muscle 400 is welded on to the arch springing position of I-steel steelframe 200, U later
The laying method of steel bar 400 is to surround I-steel steelframe 200, and bottom is close to and is welded with I-steel web, side respectively with
I-steel web both sides are contacted and are welded, and 400 place plane needs of U-shaped steel muscle are axial parallel with lock foot anchor tube 300, later
Lock foot anchor tube 300 is set into country rock, anchor tube end is overlapped and welded with U-shaped steel muscle 400 after setting by lock foot anchor tube 300
It connects, to realize the connection of anchor tube and shaped steel arch.In order to make arch uniform force, lock foot anchor tube 300 generally set in pairs, 2
Lock foot anchor tube 300 is located at arch both sides, when needing that bearing capacity is significantly increased, also can set 4 lock feet in same position
Anchor tube 300, each 2 of 200 both sides of I-steel steelframe, up and down arrange, the connection with I-steel steelframe 200 be by with it is same
The welding of U-shaped steel muscle 400 is realized.
And the drawbacks of above-mentioned construction method, is：
1, it after anchor tube is set, needs end and U-shaped bar splicing and welds, and U-shaped steel muscle has been welded with arch
Can not be moved after finishing, and U-shaped reinforcing steel area is smaller, site operation experience have shown that, setting for lock foot anchor tube is difficult to keep higher
Precision, when lock foot anchor tube end it is not parallel farther out or with plane where U-shaped steel muscle with U-shaped steel muscle distance when, need in gap
It fills more wldings to be welded, not only increases welding difficulty, also improve the probability for weld defect occur.
2, when there are more anchor tubes in steel arch-shelf the same side, according to existing scheme, upper and lower 2 anchor tubes need to be welded on same section
On U-shaped steel muscle, because the sectional area of U-shaped steel muscle is smaller, if termination point of anchor rod can be close to reinforcing bar, then the space pole of welding operation is left for
It is small, welding difficulty is significantly increased, welding effect is made to be difficult to ensure.
Therefore, it is necessary to provide a kind of supporting arrangement of Tunnel structure, construction personnel scene is facilitated to perform, and
And it can effectively ensure that the bonding strength between lock foot anchor tube and profile steel frame.
Utility model content
The utility model for the above-mentioned prior art present in technical problem, provide and a kind of being used for Tunnel
The supporting arrangement of structure lock foot anchor tube need not be made to be close to the reserved steel bar on arch when setting lock foot anchor tube, thus
Reduce the difficulty that lock foot anchor tube performs；The weld seam for providing bigger performs space, is conveniently operated；Change lock foot anchor tube and type
The mechanism of action between steel arch-shelf keeps the connection of the two more reliable and more stable；And entirely manufacturing process is simple and easy to do, to operator
The technical capability of member requires low.
Used technical solution is as follows to solve above-mentioned technical problem for the utility model：
Provide a kind of supporting arrangement for Tunnel structure, including profile steel frame and at least one
Lock foot anchor tube；The profile steel frame include close to tunnel surrounding first side and far from the tunnel surrounding,
And the second side opposite with the first side, further include connecting plate, the connecting plate includes leading flank, the leading flank phase
To trailing flank, upper side and the downside opposite with the upper side, and the of the trailing flank and the profile steel frame
Two side faces are bonded；One end of each lock foot anchor tube passes through the connecting plate, and is fixed in the tunnel surrounding.
Preferably, the central axis X along the connecting plate is symmetrically arranged with the through-hole passed through for the lock foot anchor tube；It is described
Profile steel frame is I-steel；The connecting plate is junction steel plate.
Preferably, the central axis Y of the lock foot anchor tube and the angle of horizontal plane being fixed in the tunnel surrounding be
θ, and 90 ° of 0 °≤θ ＜.
Preferably, when θ=0 °, the through-hole is circle, and the through-hole diameter D is d+1.5mm, wherein the d is
Lock foot anchor tube diameter.
Preferably, as 90 ° of 0 ° of ＜ θ ＜, the through-hole is the strip-shaped hole that upper and lower ends are semicircular arc, and the item
The width W in shape hole is d+1.5mm, and the length L of the strip-shaped hole is d × tan θ+d/cos θ+1.5mm, wherein the d is lock foot
Anchor tube diameter.
Preferably, when the lock foot anchor tube is 2, and is symmetrical arranged along the central axis X, the connecting plate length
L ' is (2d+1.5mm) × 2+b, and width W ' is (2d+1.5mm) × 2+b, thickness 3-7mm；Wherein, the b is the I-shaped
The width of steel flange plate.
Preferably, described when the lock foot anchor tube is 4, and is symmetrical arranged along the extending direction of the central axis X
Connecting plate length L ' is (2d+1.5mm) × 2+b, and width W ' is (3.5d+3.0mm) × 2+b, thickness 3-7mm；Wherein, described
B is the width of the I-steel flange plate.
Preferably, it is formed between the upper side of the connecting plate and/or downside and the second side of the profile steel frame
There is fillet weld, and the fillet weld extends along the connecting plate length direction；Between the lock foot anchor tube and through-hole, around described
Lock foot anchor tube is formed with plug weld.
Preferably, at least a lock foot anchor tube is connect with grouting equipment, by the grouting equipment at least one
The lock foot anchor tube carries out slip casting.
Technique effect acquired by the technical solution of the utility model is as follows：
1, due to the setting of junction steel plate, it is reserved in profile steel frame that when setting lock foot anchor tube need not be close to lock foot anchor tube
Reinforcing bar welds when avoiding after lock foot anchor tube is set with U-shaped steel muscle distance not parallel farther out or with plane where U-shaped steel muscle
Difficult situation reduces the difficulty that lock foot anchor tube is set.
2, when profile steel frame the same side have more lock foot anchor tube when, avoid more lock foot anchor tubes be welded in same section it is U-shaped
Situation on reinforcing bar, the welding operation for locking foot anchor tube and connecting plate performs space with bigger, reduces operation difficulty, beneficial
In raising weldquality.
3, in existing scheme, the active force between U-shaped steel muscle and anchor tube directly relies on weld seam to transmit, the dress of the utility model
In setting, the bearing reaction that lock foot anchor tube provides not is all to be transmitted by weld seam, and the angle, θ of country rock is especially squeezed into lock foot anchor tube
When smaller, the bearing reaction that lock foot anchor tube provides largely acts on connecting plate, and lock foot anchor tube is with connecting plate in through hole
The active force that weld seam is born is smaller, more plays fixed function, the requirement to weldquality is thus reduced, in view of scene
The influence factor that welding is subject to is more, objectively reduces weld seam and destroys the probability for leading to Joint failure.
4, manufacturing process is simple and easy to do, requires the technical capability of operating personnel low.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the side view of supporting arrangement (4 lock foot anchor tubes) in the prior art；
Fig. 2 is the vertical view of supporting arrangement (4 lock foot anchor tubes) in the prior art；
Fig. 3 is the front view of supporting arrangement (4 lock foot anchor tubes) in the prior art；
Fig. 4 is the side view of supporting arrangement in the utility model embodiment one (2 lock foot anchor tubes)；
Fig. 5 is the vertical view of supporting arrangement in the utility model embodiment one (2 lock foot anchor tubes)；
Fig. 6 is the front view of supporting arrangement in the utility model embodiment one (2 lock foot anchor tubes)；
Fig. 7 is circular through hole and the schematic diagram of strip-shaped hole in the utility model embodiment one；
Fig. 8 is the side view of supporting arrangement in the utility model embodiment two (4 lock foot anchor tubes)；
Fig. 9 is the front view of supporting arrangement in the utility model embodiment two (4 lock foot anchor tubes)；
Figure 10 is the vertical view of supporting arrangement in the utility model embodiment two (4 lock foot anchor tubes)；
Figure 11 is that supporting arrangement performs flow chart in the utility model embodiment three.
Specific implementation mode
The utility model is directed in Tunnel structure existing in the prior art, the connection of anchor tube and profile steel frame
Scheme is unreasonable, and work progress is not easy to operate or even can not operate, and then the bonding strength between anchor tube and steelframe is made to be affected,
There is the case where partial component disengages mutually in loading process, provides a kind of branch installation for Tunnel structure
It sets, core concept is：Lock foot anchor tube is connected using connecting plate to be attached with profile steel frame, and construction personnel can be facilitated live
It performs, and can effectively ensure that the bonding strength between lock foot anchor tube and profile steel frame.
Embodiment one：
As shown in Figs. 1-3, the utility model shows a kind of supporting arrangement for Tunnel structure,
It includes profile steel frame 1 and at least one lock foot anchor tube, it is preferred that has lock foot anchor tube 2 and 2 ' in the present embodiment, altogether
2, and 2 lock foot anchor tubes 2 it is consistent with 2 ' specification, the profile steel frame 1 include close to tunnel surrounding first side 3 and
Far from the tunnel surrounding and the second side 4 opposite with the first side 3, in addition, further including connecting plate 5, the connection
Plate 5 includes leading flank 7, the leading flank 7 opposite trailing flank 6, upper side 8 and the downside opposite with the upper side 8
9, and the trailing flank 6 is bonded with the second side 4 of the profile steel frame 1；In the present embodiment, along the center of the connecting plate 1
Axis X is symmetrically arranged with the through-hole passed through for the lock foot anchor tube 2 and 2 ', and the lock foot anchor tube 2 and 2 ' is equally along the connection
The central axis X of plate 1 is symmetrical arranged；One end of each lock foot anchor tube 2 and 2 ' passes through the connecting plate 1, and is fixed in
In the tunnel surrounding；And it is fixed on the central axis Y and horizontal plane 12 of the lock foot anchor tube 2 and 2 ' in the tunnel surrounding
Angle be θ, and 90 ° of 0 °≤θ ＜.Preferably, in the present embodiment, to increase the bearing value and firmness of structure entirety,
The profile steel frame 1 is I-steel；The connecting plate 2 is junction steel plate.
In the present embodiment, as shown in figure 4, when θ=0 °, the through-hole is circular through hole 100, and the circular through hole
100 diameter D are d+1.5mm, wherein the d is the diameter of the lock foot anchor tube 2 and 2 '；As 90 ° of 0 ° of ＜ θ ＜, the through-hole
It is the strip-shaped hole 100 ' of semicircular arc for upper and lower ends, and the width W of the strip-shaped hole 100 ' is (straight with the semicircular arc
Diameter is identical) it is d+1.5mm, the length L of the strip-shaped hole 100 ' is d × tan θ+d/cos θ+1.5mm, wherein the d is similarly
The diameter of the lock foot anchor tube 2 and 2 '.
When the lock foot anchor tube 2 and 2 ' is symmetrical arranged along the central axis X, 1 length L ' of the connecting plate is (2d+
1.5mm) × 2+b, width W ' are (2d+1.5mm) × 2+b, thickness 3-7mm；Wherein, the b is the I-steel flange plate
Width；Preferably, the thickness can be 5mm.
Meanwhile being further such that between connecting plate 5 and profile steel frame 1, locking the company of fastening between foot anchor tube 2 and 2 ' and through-hole
It connects, fillet weld is formed between the upper side 8 of the connecting plate 5 and/or downside 9 and the second side 4 of the profile steel frame 1
11 and/or 11 ', and the fillet weld 11 and/or 11 ' extends along the connecting plate length direction；And the lock foot anchor tube 2 and 2 '
It is formed with plug weld 10 and 10 ' between through-hole, around the lock foot anchor tube 2 and 2 '.
Further, it is the enhancing structural strength for locking foot anchor tube 2 and 2 ', at least a lock foot anchor tube 2 and 2 '
It is connect with grouting equipment, slip casting is carried out at least one lock foot anchor tube 2 and 2 ' by the grouting equipment.
Embodiment two：
As illustrated in figs. 5-7, embodiment two and embodiment one the difference is that, the lock foot anchor tube 2 and 2 ' divides
There are not 2, a total of 4.When the lock foot anchor tube be 4, and the lock foot anchor tube 2 and 2 ' along the central axis X extension
When direction is symmetrical arranged, the connecting plate length L ' is (2d+1.5mm) × 2+b, and width W ' is (3.5d+3.0mm) × 2+b, thick
Degree is 3-7mm；Wherein, the b is the width of the I-steel flange plate；Preferably, the thickness can be 7mm.Other are special
Sign is identical as embodiment one, and details are not described herein.
Embodiment three：
A kind of above-mentioned supporting arrangement shown in Fig. 8 performs method, which is characterized in that includes the following steps：
S1, the prefabricated lock foot anchor tube, profile steel frame and connecting plate；The size of the connecting plate is according to profile steel frame ruler
Very little and lock foot anchor tube size is determined with quantity；
S2, the fixed profile steel frame, open up the through-hole on the connecting plate；Or the fixed profile steel frame,
The through-hole is opened up on the connecting plate, and is opened up on the tunnel surrounding (such as with drill hole of drilling machine) for fixing the lock foot
The mounting hole of anchor tube, and the mounting hole is cleared up；
S3, the connecting plate for offering the through-hole is bonded with the second side of the profile steel frame, and to the connection
The upper side of plate and/or downside and the second side of the profile steel frame are welded along the connecting plate length direction, shape
At fillet weld；
S4, one end of the lock foot anchor tube is passed through into the through-hole on the connecting plate, and it is directly driven into the tunnel
It is fixed in road country rock, or one end of the lock foot anchor tube is passed through into the through-hole on the connecting plate, and be fixed in institute
It states in the mounting hole of tunnel surrounding；
S5, it is welded between the lock foot anchor tube and the through-hole, forms plug weld, make the lock foot anchor tube and institute
Connecting plate is stated to be connected firmly；
S6, at least one lock foot anchor tube is connect with grouting equipment, by the grouting equipment to described at least one
A lock foot anchor tube carries out slip casting.
In conclusion the technical solution of the utility model has the advantages that：
1, due to the setting of junction steel plate, it is reserved in profile steel frame that when setting lock foot anchor tube need not be close to lock foot anchor tube
Reinforcing bar welds when avoiding after lock foot anchor tube is set with U-shaped steel muscle distance not parallel farther out or with plane where U-shaped steel muscle
Difficult situation reduces the difficulty that lock foot anchor tube is set.
2, when profile steel frame the same side have more lock foot anchor tube when, avoid more lock foot anchor tubes be welded in same section it is U-shaped
Situation on reinforcing bar, the welding operation for locking foot anchor tube and connecting plate performs space with bigger, reduces operation difficulty, beneficial
In raising weldquality.
3, in existing scheme, the active force between U-shaped steel muscle and anchor tube directly relies on weld seam to transmit, the dress of the utility model
In setting, the bearing reaction that lock foot anchor tube provides not is all to be transmitted by weld seam, and the angle, θ of country rock is especially squeezed into lock foot anchor tube
When smaller, the bearing reaction that lock foot anchor tube provides largely acts on connecting plate, and lock foot anchor tube is with connecting plate in through hole
The active force that weld seam is born is smaller, more plays fixed function, the requirement to weldquality is thus reduced, in view of scene
The influence factor that welding is subject to is more, objectively reduces weld seam and destroys the probability for leading to Joint failure.
4, manufacturing process is simple and easy to do, requires the technical capability of operating personnel low.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of supporting arrangement for Tunnel structure, including profile steel frame and at least one lock foot anchor tube, described
Profile steel frame includes close to the first side of tunnel surrounding and far from the tunnel surrounding and opposite with the first side
Second side, which is characterized in that further include connecting plate, the connecting plate include the opposite trailing flank of leading flank, the leading flank,
Upper side and the downside opposite with the upper side, and the trailing flank is bonded with the second side of the profile steel frame；
One end of each lock foot anchor tube passes through the connecting plate, and is fixed in the tunnel surrounding.
2. device as described in claim 1, which is characterized in that be symmetrically arranged with for institute along the central axis X of the connecting plate
State the through-hole that lock foot anchor tube passes through；The profile steel frame is I-steel；The connecting plate is junction steel plate.
3. device as claimed in claim 2, which is characterized in that be fixed in the lock foot anchor tube in the tunnel surrounding
The angle of mandrel line Y and horizontal plane is θ, and 90 ° of 0 °≤θ ＜.
4. device as claimed in claim 3, which is characterized in that when θ=0 °, the through-hole is circle, and the through-hole is straight
Diameter D is d+1.5mm, wherein the d is lock foot anchor tube diameter.
5. device as claimed in claim 3, which is characterized in that as 90 ° of 0 ° of ＜ θ ＜, the through-hole is for upper and lower ends
The strip-shaped hole of semicircular arc, and the width W of the strip-shaped hole is d+1.5mm, the length L of the strip-shaped hole is d × tan θ+d/
Cos θ+1.5mm, wherein the d is lock foot anchor tube diameter.
6. the device as described in one of claim 4-5, which is characterized in that when the lock foot anchor tube is 2, and along the center
When axis X is symmetrical arranged, the connecting plate length L ' is (2d+1.5mm) × 2+b, and width W ' is (2d+1.5mm) × 2+b, thick
Degree is 3-7mm；Wherein, the b is the width of the I-steel flange plate.
7. the device as described in one of claim 4-5, which is characterized in that when the lock foot anchor tube is 4, and along the center
When the extending direction of axis X is symmetrical arranged, the connecting plate length L ' is (2d+1.5mm) × 2+b, and width W ' is (3.5d+d+
3.0mm) × 2+b, thickness 3-7mm；Wherein, the b is the width of the I-steel flange plate.
8. device as described in claim 1, which is characterized in that the upper side of the connecting plate and/or downside and the type
Fillet weld is formed between the second side of steel steelframe, and the fillet weld extends along the connecting plate length direction；The lock
It is formed with plug weld between foot anchor tube and through-hole, around the lock foot anchor tube.
9. device as described in claim 1, which is characterized in that at least a lock foot anchor tube is connect with grouting equipment, is led to
It crosses the grouting equipment and slip casting is carried out at least one lock foot anchor tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720007412.7U CN207829932U (en) | 2017-01-05 | 2017-01-05 | A kind of supporting arrangement for Tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720007412.7U CN207829932U (en) | 2017-01-05 | 2017-01-05 | A kind of supporting arrangement for Tunnel structure |
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| Publication Number | Publication Date |
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| CN207829932U true CN207829932U (en) | 2018-09-07 |
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ID=63383485
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| CN201720007412.7U Active CN207829932U (en) | 2017-01-05 | 2017-01-05 | A kind of supporting arrangement for Tunnel structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486068A (en) * | 2019-08-09 | 2019-11-22 | 中铁十一局集团第四工程有限公司 | A kind of tunnel advanced support formula lock foot anchoring stock structure and its construction method |
| CN111188639A (en) * | 2020-03-10 | 2020-05-22 | 中南大学 | An active bearing system and method for a tunnel-locking steel pipe |
| WO2022142051A1 (en) * | 2020-12-29 | 2022-07-07 | 宁波朗达工程科技有限公司 | Tunnel supporting action force adjustment device and method |
-
2017
- 2017-01-05 CN CN201720007412.7U patent/CN207829932U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486068A (en) * | 2019-08-09 | 2019-11-22 | 中铁十一局集团第四工程有限公司 | A kind of tunnel advanced support formula lock foot anchoring stock structure and its construction method |
| CN111188639A (en) * | 2020-03-10 | 2020-05-22 | 中南大学 | An active bearing system and method for a tunnel-locking steel pipe |
| CN111188639B (en) * | 2020-03-10 | 2025-01-07 | 中南大学 | Active load-bearing system and method for tunnel locking steel pipe |
| WO2022142051A1 (en) * | 2020-12-29 | 2022-07-07 | 宁波朗达工程科技有限公司 | Tunnel supporting action force adjustment device and method |
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