CN108533299A

CN108533299A - A method of explosion and anchors rock mass anchor pole

Info

Publication number: CN108533299A
Application number: CN201810354880.0A
Authority: CN
Inventors: 吕方武
Original assignee: Hubei Pei Letter Construction Co Ltd
Current assignee: Hubei Pei Letter Construction Co Ltd
Priority date: 2018-04-19
Filing date: 2018-04-19
Publication date: 2018-09-14
Anticipated expiration: 2038-04-19
Also published as: CN108533299B

Abstract

A method of explosion and anchors rock mass anchor pole, including the body of rod, body of rod upper end closed, and blind plate is equipped in body of rod upper end, a cavity is enclosed jointly by blind plate and the body of rod, and the blasting charge is equipped in cavity, first through hole is offered on blind plate；Multiple top spleniums are equipped in cavity, each top splenium is uniformly distributed around body of rod axis, the jack unit includes the shrapnel that lower end is fixedly connected on cavity lower end, shrapnel upper end is connected with thrusting plate, shrapnel pushes thrusting plate to be resisted against on the blasting charge on one side, thrusting plate other end is fixedly connected with a mandril, mandril is fixedly connected after the second through-hole with snap-gauge far from shrapnel one end, the present invention is easy to extract from cement mortar and lose anchorage effect for solving the problem of anchor pole under extraneous environmental activity.

Description

A method of explosion and anchors rock mass anchor pole

Technical field

The present invention relates to a kind of explosion anchor poles and the method anchored to rock mass.

Background technology

A large amount of slope projects involved in the construction of highway in China, railway and infrastructure, slope reinforcement are in this engineering Important component, widely used reinforcement form is anchorage technology at present, but common anchor pole is due to the effect with side slope Power is single, and lacks the structure that card resistance is carried out between side slope, under long-term external environment effect, is easy to pull out from water slurry Go out, or extracted together with slurry, to lose anchorage effect, long-term slope cannot be made steadily to ensure safety.

Invention content

The technical problem to be solved in the present invention is to provide a kind of explosion anchor poles and the method anchored to rock mass, for solving Certainly anchor pole is under extraneous environmental activity, the problem of being easy to extract from cement mortar and lose anchorage effect.

In order to solve the above-mentioned technical problem, the technical scheme is that：

A kind of explosion anchor pole, including the body of rod, body of rod upper end closed are equipped with blind plate in body of rod upper end, common by blind plate and the body of rod A cavity is enclosed, the blasting charge is equipped in cavity, first through hole is offered on blind plate；

A plurality of partitioning slot is equipped on cavity inner wall, each partitioning slot is uniformly distributed around body of rod axis, will be empty by partitioning slot Cavity wall is divided into polylith limb；

It is equipped with groove on limb, snap-gauge is equipped in groove, snap-gauge upper end is fixedly connected with groove upper end, in groove floor Equipped with the second through-hole；

Multiple top spleniums are equipped in cavity, each top splenium is uniformly distributed around body of rod axis, under the jack unit includes End is fixedly connected on the shrapnel of cavity lower end, and shrapnel upper end is connected with thrusting plate, and shrapnel pushes thrusting plate to be resisted against explosive on one side It wraps, thrusting plate other end is fixedly connected with a mandril, and mandril is solid with snap-gauge after the second through-hole far from shrapnel one end Fixed connection.

The shape of first through hole is up-thin-low-thick truncated cone-shaped, and one piece of envelope is fixedly installed on the aperture of first through hole upper end Close catch.

It is connected with a hollow screw in body of rod lower end, washer and nut are installed in hollow screw, in washer face It is equipped with rubber pad.

Snap-gauge upper end is integrally formed with the groove upper end body of rod, and the angle that snap-gauge is connect with groove is arc-shaped.

A notch is equipped on shrapnel.

Angle between each limb and blind plate is arc-shaped.

A method of rock mass is anchored, is included the following steps：

The first step, according to design requirement to anchorage point measurement and positioning, anchor hole is drilled out in slope surface using drilling machine；

Second step has been cleared up in anchor hole after impurity, and anchor pole is put into anchor hole, and igniting blasting explosive so that anchor hole bottom Hole is formed under the action of explosion, while under the action of explosion, each piece of limb is bent outwardly, mandril push card plate benging goes out Groove forms barb, at the same time closes catch and is blasted from first through hole；

Slurry is circulated by hollow screw in the body of rod by third step using mashing pump, and slurry is after the body of rod passes through first through hole It enters in hole, is finally discharged by the gap between the body of rod and anchor hole, after slurry solidification, complete the anchoring of anchor pole.

When proceeding to third step, after slurry is discharged by the gap between the body of rod and anchor hole, washer and nut are installed to It in hollow screw, is closed using the gap of washer and rubber pad between anchor hole and anchor pole, then mashing pump is used to continue Slurry is poured into, slurry is made to enter in the subtle gap in hole, after slurry solidification, completes the anchoring of anchor pole.

The beneficial effects of the invention are as follows：

1, explosive pops in the cavities, so that each piece of limb expands outwardly, the gas for generation of exploding impacts anchor hole hole wall rock mass, makes Hole wall rock mass, which crush, to be pressurized, and forms hole, and at the same time, mandril pushes snap-gauge to be bent outwardly to form barb, and each piece of snap-gauge is in sky A card resistance structure is formed in cave, can thus anchor pole be effectively prevent to be extracted from anchor hole, then be poured into from anchor pole into hole Slurry makes anchor pole form thick outer thin resistance to plucking structure in one and is carried to enhance the breakout capacity of anchor pole after slurry solidification Safety when high slope uses.

2, closing catch makes explosive explode in a closed space, after explosion for being closed to first through hole Closing catch is preferentially discharged by the air-flow of generation from first through hole, is then pushing thrusting plate and limb expansion, so not The validity of detonation of a cartridge can be only improved, and is also prevented from the body of rod and is blasted from anchor hole, while ensuring first through hole energy It is enough to be passed through by slurry.

3, snap-gauge and the angle of groove connection are that arc-shaped this structure enables snap-gauge to be bent in circular arc, are avoided Stress is excessively concentrated, and snap-gauge is prevented to be broken in knee.

4, before explosion, the blasting charge is fixed by top splenium, and after explosion, shrapnel is broken by incision, mandril and thrusting plate with Snap-gauge is displaced outwardly, and at this moment can be limited to the excurvation stroke of snap-gauge by thrusting plate, snap-gauge overflexing is prevented, to carry The reliability of the anchoring of snap-gauge after height explosion.

5, the angle between limb and blind plate is arc-shaped, and stress is avoided excessively to concentrate, and limb is prevented to be broken in knee.

6, after slurry is by the gap discharge between the body of rod and anchor hole, using washer and rubber pad between anchor hole and anchor pole Gap is closed, after continuing the slip casting into hole by force so that the slurry pressure in hole increases, and slurry is pressed into After explosion in rock mass fine gap, the faulted joint in rock mass hole is filled, with integral to fracture rock mass adhesion, in turn Further increase the stability and fixing of anchoring.

Description of the drawings

Following further describes the present invention with reference to the drawings：

Fig. 1 is the cross-sectional view of the present invention,

Fig. 2 is the partial enlargement structural representation of the present invention,

Fig. 3 is the cross-sectional view after the explosion of body of rod one end of the present invention,

Fig. 4 is the overlooking structure diagram of the present invention,

Fig. 5 is the main structure diagram of the present invention,

Fig. 6 is the main structure diagram when in use of the present invention.

In figure：The body of rod 1, the blasting charge 2, blind plate 3, top splenium 4, snap-gauge 5, closing catch 6, anchor hole 7, washer 8, partitioning slot 11, limb 12, cavity 13, the second through-hole 14, first through hole 31, shrapnel 41, thrusting plate 42, mandril 43, groove 51, hole 71, Rubber pad 81, hollow screw 82, nut 83.

Specific implementation mode

A kind of explosion anchor pole, including the body of rod 1,1 upper end closed of the body of rod are equipped with blind plate 3, by 3 He of blind plate in 1 upper end of the body of rod The body of rod 1 encloses a cavity 13 jointly, and the blasting charge 2 is equipped in cavity 13, first through hole 31 is offered on blind plate 3；

A plurality of partitioning slot 11 is equipped on 13 inner wall of cavity, each partitioning slot 11 is uniformly distributed around 1 axis of the body of rod, by separating 13 inner wall of cavity is divided into polylith limb 12 by seam 11；

It is equipped with groove 51 on limb 12, snap-gauge 5 is equipped in groove 51,5 upper end of snap-gauge is fixedly connected with 51 upper end of groove, 51 bottom surface of groove is equipped with the second through-hole 14；

Multiple top spleniums 4 are equipped in cavity 13, each top splenium 4 is uniformly distributed around 1 axis of the body of rod, the jack unit packet The shrapnel 41 that lower end is fixedly connected on 13 lower end of cavity is included, 41 upper end of shrapnel is connected with thrusting plate 42, and shrapnel 41 pushes thrusting plate 42 are resisted against on one side on the blasting charge 2, and 42 other end of thrusting plate is fixedly connected with a mandril 43, and mandril 43 is far from shrapnel 41 1 End is fixedly connected after the second through-hole 14 with snap-gauge 5.A notch is equipped on shrapnel 41.

Explosive pops in cavity 13, so that each piece of limb 12 expands outwardly, the gas for generation of exploding impacts 7 hole wall of anchor hole Rock mass makes hole wall rock mass crush and is pressurized, forms hole 71, and at the same time, mandril 43 pushes snap-gauge 5 to be bent outwardly to form barb, Each piece of snap-gauge 5 forms a card resistance structure in hole 71, thus anchor pole can be effectively prevent to be extracted from anchor hole 7, then by Anchor pole pours into slurry into hole 71, and slurry can be epoxy resin, after slurry solidification, so that anchor pole is formed thick outer thin in one Resistance to plucking structure improve safety when side slope uses to enhance the breakout capacity of anchor pole.

The effect of wherein top splenium 4 is：Before explosion, the blasting charge 2 is fixed by top splenium 4；After explosion, shrapnel 41 is by cutting It is broken at mouthful, mandril 43 and thrusting plate 42 are displaced outwardly with snap-gauge 5, at this moment can be by thrusting plate 42 to the excurvation row of snap-gauge 5 Cheng Jinhang is limited, and prevents 5 overflexing of snap-gauge, the reliability of the anchoring of snap-gauge 5 after being exploded with raising.

The shape of first through hole 31 is up-thin-low-thick truncated cone-shaped, and one is fixedly installed on 31 upper end aperture of first through hole Block closes catch 6.

Closing catch 6 makes explosive explode in a closed space, after explosion for being closed to first through hole 31 Closing catch 6 is preferentially discharged by the air-flow of generation from first through hole 31, then thrusting plate 42 and limb 12 is being pushed to expand, The validity that the explosion of the blasting charge 2 not only can be improved, and is also prevented from the body of rod 1 and is blasted from anchor hole 7, while ensuring the One through-hole 31 can be passed through by slurry.The truncated cone-shaped structure of first through hole 31 can facilitate catch 6 to spray, anti-stop tab 6 Bite is in first through hole 31.

It is connected with a hollow screw 82 in 1 lower end of the body of rod, washer 8 and nut 83 are installed in hollow screw 82, 8 end face of washer is equipped with rubber pad 81.Hollow screw 82 can be removed from the body of rod 1, be substituted for anchor pole extension bar, at the same be also used for Mashing pump docks；It closes in the gap of washer 8 and rubber pad 81 between the body of rod 1 and anchor hole 7.

5 upper end of snap-gauge is integrally formed with the 51 upper end body of rod 1 of groove, and the angle that snap-gauge 5 is connect with groove 51 is arc-shaped.This Kind structure can excessively be concentrated to avoid stress, and snap-gauge 5 is prevented to be broken in knee.

Angle between each limb 12 and blind plate 3 is arc-shaped.

A method of rock mass is anchored, is included the following steps：

The first step, according to design requirement to anchorage point measurement and positioning, anchor hole 7 is drilled out in slope surface using drilling machine, is then adopted Anchor hole 7 is cleared up with compressed air or clear water, the dust in hole is blown out, in order to can be good between slurry and rock Good bonding；

Second step has been cleared up in anchor hole 7 after impurity, anchor pole is put into anchor hole 7, and igniting blasting explosive so that 7 bottom of anchor hole Portion forms hole 71 under the action of explosion, while under the action of explosion, and each piece of limb 12 be bent outwardly, 43 push card of mandril Plate 5 is bent out groove 51 and forms barb, at the same time closes catch 6 and is blasted from first through hole 31；

Slurry is circulated by hollow screw 82 in the body of rod 1 by third step using mashing pump, and slurry passes through first to lead to along the body of rod 1 It enters behind hole 31 in hole 71, is finally discharged by the gap between the body of rod 1 and anchor hole 7, after slurry solidification, complete anchor pole Anchoring.

When proceeding to third step, after slurry is discharged by the gap between the body of rod 1 and anchor hole 7, washer 8 and nut 83 are pacified It is attached in hollow screw 82, is closed using the gap of washer 8 and rubber pad 81 between anchor hole 7 and anchor pole, then used Mashing pump continues to pour into slurry, and slurry is made to enter in the subtle gap in hole 71, after slurry solidification, completes the anchor of anchor pole Gu.

After hole 71 is blasted, some fine cracks between rock mass, low pressure slurry is difficult to enter in crack, so can To be closed using the gap of washer 8 and rubber pad 81 between anchor hole 7 and anchor pole, both closed to going out slurry hole, Continue the slip casting into hole 71 so that slurry is pressed into fine gap, to rock mass by the slurry pressure abruptly increase in hole 71 Faulted joint in hole 71 is filled, with to fracture rock mass adhesion it is integral, and then further increase anchoring stability and Fixing.

Claims

1. a kind of explosion anchor pole, including the body of rod（1）, the body of rod（1）Upper end closed, it is characterised in that：In the body of rod（1）It is equipped in upper end Blind plate（3）, by blind plate（3）And the body of rod（1）A cavity is enclosed jointly（13）, in cavity（13）It is interior to be equipped with the blasting charge（2）, Blind plate（3）On offer first through hole（31）；

In cavity（13）Inner wall is equipped with a plurality of partitioning slot（11）, each partitioning slot（11）It is around the body of rod（1）Axis uniformly divides Cloth, by partitioning slot（11）By cavity（13）Inner wall is divided into polylith limb（12）；

In limb（12）It is equipped with groove（51）, in groove（51）It is interior to be equipped with snap-gauge（5）, snap-gauge（5）Upper end and groove（51）On End is fixedly connected, in groove（51）Bottom surface is equipped with the second through-hole（14）；

In cavity（13）It is interior to be equipped with multiple top spleniums（4）, each top splenium（4）It is around the body of rod（1）Axis is uniformly distributed, the top Pressure device includes that lower end is fixedly connected on cavity（13）The shrapnel of lower end（41）, shrapnel（41）Upper end is connected with thrusting plate（42）, Shrapnel（41）Push thrusting plate（42）It is resisted against the blasting charge on one side（2）On, thrusting plate（42）Other end and a mandril（43） It is fixedly connected, mandril（43）Far from shrapnel（41）One end passes through the second through-hole（14）Afterwards with snap-gauge（5）It is fixedly connected.

2. a kind of explosion anchor pole according to claim 1, it is characterised in that：First through hole（31）Shape be it is up-thin-low-thick Truncated cone-shaped, in first through hole（31）One piece of closing catch is fixedly installed on the aperture of upper end（6）.

3. a kind of explosion anchor pole according to claim 2, it is characterised in that：In the body of rod（1）Lower end be connected with one it is hollow Screw rod（82）, in hollow screw（82）On washer is installed（8）And nut（83）, in washer（8）End face is equipped with rubber pad （81）.

4. a kind of explosion anchor pole according to claim 1, it is characterised in that：Snap-gauge（5）Upper end and groove（51）Upper side pole Body（1）It is integrally formed, snap-gauge（5）With groove（51）The angle of connection is arc-shaped.

5. a kind of explosion anchor pole according to claim 1, it is characterised in that：In shrapnel（41）It is equipped with a notch.

6. a kind of explosion anchor pole according to claim 1, it is characterised in that：Each limb（12）With blind plate（3）Between folder Angle is arc-shaped.

7. a kind of method anchored to rock mass using the anchor pole that explodes described in claim 3, it is characterised in that：Including walking as follows Suddenly：

The first step, according to design requirement to anchorage point measurement and positioning, anchor hole is drilled out in slope surface using drilling machine（7）；

Second step has cleared up anchor hole（7）After interior impurity, anchor pole is put into anchor hole（7）In, and igniting blasting explosive so that anchor Hole（7）Bottom forms hole under the action of explosion（71）, while under the action of explosion, each piece of limb（12）Be bent outwardly, Mandril（43）Push snap-gauge（5）It is bent out groove（51）Barb is formed, catch is at the same time closed（6）From first through hole（31）In It is blasted；

Third step, using mashing pump by slurry by hollow screw（82）It is circulated into the body of rod（1）In, slurry is along the body of rod（1）It passes through First through hole（31）After enter hole（71）In, finally by the body of rod（1）With anchor hole（7）Between gap discharge, wait for that slurry is solidifying After Gu, the anchoring of anchor pole is completed.

8. a kind of using a kind of method that explosion anchor pole anchors rock mass described in claim 7, it is characterised in that：Carry out When being walked to third, slurry is by the body of rod（1）With anchor hole（7）Between gap discharge after, by washer（8）And nut（83）In being installed to Empty screw rod（82）On, utilize washer（8）And rubber pad（81）To anchor hole（7）Gap between anchor pole is closed, and is then adopted Continued to pour into slurry with mashing pump, slurry is made to enter hole（71）In subtle gap in, after slurry solidification after, complete anchor pole Anchoring.