CN107268618A - A kind of compound anchoring of enlarged footing and its anchoring process - Google Patents
A kind of compound anchoring of enlarged footing and its anchoring process Download PDFInfo
- Publication number
- CN107268618A CN107268618A CN201610215882.2A CN201610215882A CN107268618A CN 107268618 A CN107268618 A CN 107268618A CN 201610215882 A CN201610215882 A CN 201610215882A CN 107268618 A CN107268618 A CN 107268618A
- Authority
- CN
- China
- Prior art keywords
- anchor
- hole
- anchor cable
- cable body
- anchoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 35
- 150000001875 compounds Chemical class 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000002360 explosive Substances 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000007569 slipcasting Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims description 14
- 239000002689 soil Substances 0.000 claims description 9
- 238000007600 charging Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 238000007596 consolidation process Methods 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims 1
- 239000003814 drug Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
Abstract
The present invention relates to a kind of compound anchoring of enlarged footing, it includes anchor cable body and pad, backing plate and anchor slab.The pad on the backing plate with being equipped with anchor cable hole；The top of the anchor cable body sequentially passes through the pad and the anchor cable hole of the backing plate is connected together with the anchor slab；The anchor cable body bottom is the Cable Structure being made up of steel wire that stratiform ladder is distributed, and the cylindric explosive of the water resistant equipped with detonator is accompanied between the outer layer and internal layer of every rank；The anchoring section of the anchor cable body is anchored in truncated cone-shaped injecting cement paste, and the truncated cone-shaped injecting cement paste is formed by truncated cone-shaped anchor hole slip casting.Meanwhile, the invention also discloses the anchoring process of the compound anchoring of the enlarged footing.It is simple in construction, easy construction of the invention, with low cost, huge anchor force, improvement anchoring effect can be provided, project progress can be significantly speeded up.
Description
Technical field
Reinforced the present invention relates to Rock And Soil and support technology, more particularly to a kind of compound anchoring of enlarged footing and its anchoring side
Method.
Background technology
In decades, the prevention and controls and technology on landslide have obtained faster development, especially anchorage technology, and it is by burying
If anchor cable in the earth formation tightly locks together on stratum, in mine, water conservancy, water power, highway, railway, municipal administration, city
Build, the field such as geology, military project obtains extensive use, and key effect is played in national economy key project construction.But it is existing
The anchorage technology or anchor force that can be provided is limited, consolidation effect is not ideal enough, or cost is high, difficulty of construction is big, technique
Complicated the problems such as, serious restriction is constituted to the application of its further genralrlization.
The content of the invention
The technical problems to be solved by the invention, which are to provide one kind, can provide huge anchor force, improve anchoring effect, and
Cost is low, construction is easy, the compound anchoring of the simple enlarged footing of technique.
Another technical problem to be solved by this invention is to provide the anchoring process of the compound anchoring of the enlarged footing.
To solve the above problems, a kind of compound anchoring of enlarged footing of the present invention, it is characterised in that：It includes anchor cable body
And pad, backing plate and anchor slab；The pad on the backing plate with being equipped with anchor cable hole；The top of the anchor cable body sequentially passes through institute
The anchor cable hole for stating pad and the backing plate is connected together with the anchor slab；The anchor cable body bottom is distributed for stratiform ladder
The Cable Structure being made up of steel wire, this accompanies the cylindric explosive of water resistant equipped with detonator between outer layer and internal layer per rank；Institute
The anchoring section for stating anchor cable body is anchored in truncated cone-shaped injecting cement paste, and the truncated cone-shaped injecting cement paste is formed by truncated cone-shaped anchor hole slip casting.
The length of each layer steel wire differs in the anchor cable body, and outer layer is short, internal layer length, central shaft are most long.
An injected hole is provided with the backing plate.
A kind of anchoring process of the compound anchoring of enlarged footing as described above, comprises the following steps：
(1) rock and soil slope is drilled by design requirement；
(2) one or many blast chargings are carried out in a segment length of foot of hole, and the big top in a diameter of bottom of the blast charging is small
Truncated cone-shaped Strip chamber, after each powder charge be detonating primer to drilling implement chambering, in the Rock And Soil formed
Truncated cone-shaped anchor hole；
(3) the explosive of the detonator is housed to the anchor cable body per arranging section between rank outer layer and internal layer；
(4) the anchor cable body that will be equipped with the explosive is placed in the anchor hole bottom hole；
(5) the slip casting into the anchor hole, makes injecting cement paste bury the anchoring section of the anchor cable body completely, at once detonating charge；
(6) the pad is applied at the opening of the anchor hole after the injecting cement paste is consolidated, and allow the anchor cable body top to pass through
The pad and the anchor cable hole at the backing plate center, and apply prestressing force and lock the anchor cable body on the anchor slab；
(7) it is suitable for reading to the injected hole to refilling the injecting cement paste in the anchor hole by the injected hole on the backing plate, together
When cast the injecting cement paste in wall-rock crack.
The present invention has advantages below compared with prior art：
1st, steel wire of the detonation driving anchor cable body per rank outer layer dissipates to like truncated cone-shaped anchor hole hole wall and rock cranny in the present invention
Open, and drive injecting cement paste to drive the part steel wire of anchor cable body to penetrate among Rock And Soil crack, anchor cable body is anchored in anchor by injecting cement paste
Kong Zhong.
2nd, in the present invention after the cylindric explosive charge of water resistant, the different steel wire of length corresponding to anchor cable body different layers is built
Comprehensive, three-dimensional compound anchoring is played, the different steel wire of length is anchored, while providing anchor force, played a role respectively
And cooperate, make the whole anchoring section anchor hole of anchor hole with the shearing stress distribution on slip casting body interface than more uniform.
3rd, the present invention calls the ground in the range of whole anchoring section to greatest extent by the cooperation of the different steel wires of length
Layer intensity, and anchor force can be improved with the increase of the anchor cable body number of plies and length in theory, the security of engineering is obtained significantly
Enhancing.
4th, simple in construction, easy construction of the invention, with low cost, can significantly speed up project progress.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the invention.
Fig. 2 is the shaft section schematic diagram of anchor cable body explosive charge blast pre-structure of the present invention.
In figure：1-Rock And Soil, 2-injecting cement paste, 3-anchor hole, 4-anchor cable body 5-wall-rock crack, 6-pad
7-backing plate, 8-anchor slab, 9-anchor cable hole, 10-detonator, 11-steel wire, 12-explosive, 13-injected hole.
Embodiment
As shown in Figure 1 and Figure 2, the compound anchoring of a kind of enlarged footing, it includes anchor cable body 4 and pad 6, backing plate 7 and anchor slab 8.Pad
Platform 6 on backing plate 7 with being equipped with anchor cable hole 9；The top of anchor cable body 4 sequentially passes through pad 6 and the anchor cable hole 9 of backing plate 7 connects with anchor slab 8
It is connected to together；The bottom of anchor cable body 4 is the Cable Structure being made up of steel wire 11 that stratiform ladder is distributed, outer layer and the internal layer per rank it
Between accompany the cylindric explosive 12 of water resistant equipped with detonator 10；The anchoring section of anchor cable body 4 is anchored in truncated cone-shaped injecting cement paste, the circle
Platform shape injecting cement paste is formed by the slip casting of truncated cone-shaped anchor hole 3.
Wherein：The length of each layer steel wire 11 differs in anchor cable body 4, and outer layer is short, internal layer length, central shaft are most long.
An injected hole 13 is provided with backing plate 7.
The anchoring process of the compound anchoring of the enlarged footing, comprises the following steps：
(1) the side slope of Rock And Soil 1 is drilled by design requirement；
(2) one or many blast chargings are carried out in a segment length of foot of hole, and the big top in a diameter of bottom of the blast charging is small
Truncated cone-shaped Strip chamber, be that chamberings are implemented in the drilling of 10 pairs of detonating primer after each powder charge, circle formed in Rock And Soil 1
Platform shape anchor hole 3；
(3) the explosive 12 of detonator 10 is housed to anchor cable body 4 per arranging section between rank outer layer and internal layer；
(4) the anchor cable body 4 that will be equipped with explosive 12 is placed in the bottom hole of anchor hole 3；
(5) the slip casting into anchor hole 3, makes injecting cement paste 2 bury the anchoring section of anchor cable body 4 completely, at once detonating charge 12；
(6) pad 6 is applied at the opening of anchor hole 3 after injecting cement paste 2 is consolidated, and allows the top of anchor cable body 4 to pass through pad 6 and backing plate 7
The anchor cable hole 9 at center, and apply prestressing force and lock anchor cable body 4 on anchor slab 8；
(7) it is suitable for reading to injected hole 13 to refilling injecting cement paste 2 in anchor hole 3 by the injected hole 13 on backing plate 7, while note of casting
Slurry 2 is in wall-rock crack 5.
Claims (4)
1. a kind of compound anchoring of enlarged footing, it is characterised in that：It includes anchor cable body（4）And pad（6）, backing plate（7）And anchor slab
（8）；The pad（6）With the backing plate（7）On be equipped with anchor cable hole（9）；The anchor cable body（4）Top sequentially pass through it is described
Pad（6）With the backing plate（7）The anchor cable hole（9）With the anchor slab（8）Connect together；The anchor cable body（4）Bottom
Be stratiform ladder distribution by steel wire（11）The Cable Structure of composition, is accompanied equipped with detonator between the outer layer and internal layer of every rank（10）
The cylindric explosive of water resistant（12）；The anchor cable body（4）Anchoring section be anchored in truncated cone-shaped injecting cement paste, the truncated cone-shaped slip casting
Body is by truncated cone-shaped anchor hole（3）Slip casting is formed.
2. the compound anchoring of a kind of enlarged footing as claimed in claim 1, it is characterised in that：The anchor cable body（4）In each layer steel wire
（11）Length differ, and outer layer is short, internal layer length, central shaft are most long.
3. the compound anchoring of a kind of enlarged footing as claimed in claim 1, it is characterised in that：The backing plate（7）On be provided with a slip casting
Hole（13）.
4. a kind of anchoring process of the compound anchoring of enlarged footing as claimed in claim 1, comprises the following steps：
(1) by design requirement to Rock And Soil（1）Side slope drills；
(2) one or many blast chargings are carried out in a segment length of foot of hole, and the big top in a diameter of bottom of the blast charging is small
Truncated cone-shaped Strip chamber, after each powder charge be detonating primer（10）Chambering is implemented to drilling, in the Rock And Soil（1）
Middle formation truncated cone-shaped anchor hole（3）；
(3) to the anchor cable body（4）The detonator is housed per arranging section between rank outer layer and internal layer（10）The explosive
（12）；
(4) the explosive will be equipped with（12）The anchor cable body（4）It is placed in the anchor hole（3）Bottom hole；
(5) to the anchor hole（3）Interior slip casting, makes injecting cement paste（2）The anchor cable body is buried completely（4）Anchoring section, blast is played at once
Medicine（12）；
(6) the injecting cement paste is treated（2）In the anchor hole after consolidation（3）Opening at apply the pad（6）, and allow the anchor cable
Body（4）Top passes through the pad（6）With the backing plate（7）The anchor cable hole at center（9）, and apply prestressing force and lock institute
State anchor cable body（4）In the anchor slab（8）On；
(7) the backing plate is passed through（7）On injected hole（13）To the anchor hole（3）Inside refill the injecting cement paste（2）Described in
Injected hole（13）It is suitable for reading, while the injecting cement paste of casting（2）In wall-rock crack（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215882.2A CN107268618A (en) | 2016-04-09 | 2016-04-09 | A kind of compound anchoring of enlarged footing and its anchoring process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215882.2A CN107268618A (en) | 2016-04-09 | 2016-04-09 | A kind of compound anchoring of enlarged footing and its anchoring process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268618A true CN107268618A (en) | 2017-10-20 |
Family
ID=60052644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610215882.2A Pending CN107268618A (en) | 2016-04-09 | 2016-04-09 | A kind of compound anchoring of enlarged footing and its anchoring process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107268618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458127A (en) * | 2018-09-14 | 2019-03-12 | 太原理工大学 | A kind of three-level explosion, multi-direction soft rock grouting strengthening method |
| CN111927511A (en) * | 2020-07-29 | 2020-11-13 | 安徽理工大学 | Steel pipe anchor cable end blasting and grouting combined supporting method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2423318Y (en) * | 2000-06-01 | 2001-03-14 | 东北大学 | Explosion expanded rockbolt |
| JP2008274596A (en) * | 2007-04-26 | 2008-11-13 | Psl Japan Kk | Anchor construction method |
| CN102002947A (en) * | 2010-12-06 | 2011-04-06 | 武汉大学 | Explosion expanded internal anchor head prestressed anchor cable for strengthening weak rock and anchoring method thereof |
| CN201962675U (en) * | 2011-01-14 | 2011-09-07 | 傅金筑 | Locally-strengthened and tension-free anchor cable rock mass strengthening device |
| CN103069109A (en) * | 2010-08-10 | 2013-04-24 | Fci特拉华控股有限公司 | Fully grouted cable bolt |
| CN103774660A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Grouting anchoring tubular type anchor rod for circular shaped charge blasting hole |
| CN205502005U (en) * | 2016-04-09 | 2016-08-24 | 河南城建学院 | Enlarged footing composite anchoring |
-
2016
- 2016-04-09 CN CN201610215882.2A patent/CN107268618A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2423318Y (en) * | 2000-06-01 | 2001-03-14 | 东北大学 | Explosion expanded rockbolt |
| JP2008274596A (en) * | 2007-04-26 | 2008-11-13 | Psl Japan Kk | Anchor construction method |
| CN103069109A (en) * | 2010-08-10 | 2013-04-24 | Fci特拉华控股有限公司 | Fully grouted cable bolt |
| CN102002947A (en) * | 2010-12-06 | 2011-04-06 | 武汉大学 | Explosion expanded internal anchor head prestressed anchor cable for strengthening weak rock and anchoring method thereof |
| CN201962675U (en) * | 2011-01-14 | 2011-09-07 | 傅金筑 | Locally-strengthened and tension-free anchor cable rock mass strengthening device |
| CN103774660A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Grouting anchoring tubular type anchor rod for circular shaped charge blasting hole |
| CN205502005U (en) * | 2016-04-09 | 2016-08-24 | 河南城建学院 | Enlarged footing composite anchoring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458127A (en) * | 2018-09-14 | 2019-03-12 | 太原理工大学 | A kind of three-level explosion, multi-direction soft rock grouting strengthening method |
| CN111927511A (en) * | 2020-07-29 | 2020-11-13 | 安徽理工大学 | Steel pipe anchor cable end blasting and grouting combined supporting method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |