CN105926650B - Slope surface building concrete layer landslide-proofing fixing device - Google Patents
Slope surface building concrete layer landslide-proofing fixing device Download PDFInfo
- Publication number
- CN105926650B CN105926650B CN201610515988.4A CN201610515988A CN105926650B CN 105926650 B CN105926650 B CN 105926650B CN 201610515988 A CN201610515988 A CN 201610515988A CN 105926650 B CN105926650 B CN 105926650B
- Authority
- CN
- China
- Prior art keywords
- slope surface
- anchoring section
- anchor
- fixing device
- concrete layer
- 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.)
- Expired - Fee Related
Links
- 238000004873 anchoring Methods 0.000 claims abstract description 50
- 239000011159 matrix material Substances 0.000 claims abstract description 26
- 239000011435 rock Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 12
- 238000007569 slipcasting Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 239000004575 stone Substances 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of slope surface building concrete layer landslide-proofing fixing devices, it is inclined at including one in the anchor hole that rock stratum opens up, pass through concrete and the fixed anchoring section of anchor hole, multiple anchor cables being rigidly connected to each other are equipped in anchoring section, anchor cable is equipped with shelf, the Grouting Pipe for injecting concrete is extended at along anchoring section to 50 100mm of anchor hole bottom, slope surface matrix has been poured above rock stratum, a casing being embedded in slope surface matrix is connected with anchoring section, a flexible prestressing rope that outside of sleeve is fixedly connected with and extended to anchor cable is equipped in casing, a prestressed slab is connected at casing nozzle, prestressing force rope passes through prestressed slab, an anchor head acted on prestressed slab is connected with prestressing force rope.The present invention can improve the mechanical property on rock mass and slope, be effectively prevented rock mass and be subjected to displacement with slope, promote its stabilization, reach regulation concordant, landslide and crag, danger stone purpose.
Description
Technical field
The present invention relates to technical field of building construction more particularly to a kind of slope surface building concrete layer landslide-proofing to fix dress
It puts.
Background technology
With the development of society, construction industry has become inseparable with our life, in building construction process often
Needing the casting concrete slope on rock mass, the junction on rock mass and slope can usually generate crack or with reference to defective tightness,
Slope easily shifts, it is impossible to ensure the overall stability of slope and rock mass, how fundamentally improve the mechanical property of rock mass
Can, the displacement of rock mass is efficiently controlled, promotes its stabilization, achievees the purpose that renovate concordant, landslide and crag, danger stone, is current
Technical problem to be solved.
Invention content
Above-mentioned to solve the problems, such as, the present invention provides a kind of mechanical property that can improve rock mass and slope, effectively
Ground prevents rock mass to be subjected to displacement with slope, promotes its stabilization, reaches regulation concordant, landslide and crag, danger stone purpose slope surface building
Concrete layer landslide-proofing fixing device.
The present invention solve the technical solution that uses of above-mentioned technical problem for：Slope surface building concrete layer landslide-proofing fixes dress
It puts, is inclined in the anchor hole that rock stratum opens up, by concrete and the fixed anchoring section of anchor hole including one, in anchoring section
Interior to be equipped with multiple anchor cables being rigidly connected to each other, the anchor cable is equipped with the shelf for increasing with anchoring section bonding strength, edge
Anchoring section has poured slope surface base to the Grouting Pipe being extended at the 50-100mm of anchor hole bottom for injecting concrete above rock stratum
Body is connected with a casing being embedded in slope surface matrix with anchoring section, is fixedly connected and extends with anchor cable equipped with one in casing
To the flexible prestressing rope of outside of sleeve, a prestressed slab is connected at casing nozzle, the prestressing force rope is worn
Prestressed slab is crossed, being connected with one with prestressing force rope acts on prestressed slab for increasing rock stratum and slope surface matrix pretightning force
Anchor head.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, the Grouting Pipe include being set in anchoring section to anchoring
Duan Jinhang once groutings simultaneously step up the once grouting pipe for being detached from anchoring section and in anchoring section when once grouting pipe is noted
Secondary high-pressure slip-casting closely knit secondary grouting pipe is carried out when slurry is completed to anchoring section, the secondary grouting tube wall is equipped with slip casting
Hole, injected hole are equipped with the sealing paste for preventing concrete mortar during once grouting from entering secondary grouting pipe.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, the shelf include the annular connection with connecting cavity
Part, the circular connector circumferentially multiple reinforcing ribs extended to anchor hole, forms between adjacent two reinforcing rib to set
Put the isolated area of secondary grouting pipe.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, the anchor cable cylindricality thick for the thin bottom end in top or cone
Shape structure, the shelf are set on anchor cable bottom end.
The junction of above-mentioned slope surface building concrete layer landslide-proofing fixing device, described sleeve pipe and anchoring section is equipped with and prevents
The sealing ring of concrete mortar sleeve pipe when pouring slope surface matrix.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, described sleeve pipe tube wall extend outwardly be useful for increase with
The reinforcing rib of slope surface matrix bonding strength.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, the inclination of the anchor hole and casing and level ground
Angle is 30 ° and is in same angled straight lines.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, the anchorage length of the anchoring section is 4-8m.
Above-mentioned slope surface building concrete layer landslide-proofing fixing device, prestressing force rope lengths are 6-14m.
The beneficial effects of the present invention are：That is opened in rock stratum sets in anchor hole through concrete and the fixed anchoring of anchor hole
Section, can be such that anchoring section is preferably fixed in hole, solid and reliable；Anchor cable setting is multiple, and shelf is equipped between anchor cable and anchor cable,
For increasing and hole inner concrete bonding strength；Sleeve is connected with anchoring section, one is connected at casing nozzle and in advance should
Power plate is equipped with a flexible prestressing rope that outside of sleeve is fixedly connected with and extended to anchor cable, by in advance should in casing
The anchor head locking of power rope connection, makes rock mass be connect with slope surface matrix even closer, ensure that whole bonding strength；Using one
Secondary Grouting Pipe and secondary grouting pipe carry out slip casting to anchor hole, make anchoring section more closely knit, no cavitation；Anchoring section and casing
Angle of inclination with level ground is 30 °, convenient for the connection of slope surface matrix and rock mass；The junction of casing and anchoring section is equipped with
Sealing ring prevents the concrete sleeve pipe when pouring slope surface matrix.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the present invention；
Fig. 2 is the partial structural diagram of the present invention；
Fig. 3 is Section A-A figure in the present invention；
Fig. 4 is section B-B figure in the present invention；
Fig. 5 is the structure diagram of middle sleeve of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further details the present invention.
As shown in Fig. 1,2,3,4,5, slope surface building concrete layer landslide-proofing fixing device is inclined at rock stratum including one
In 1 anchor hole 2 opened up, by 2 fixed anchoring section 3 of concrete and anchor hole, the anchorage length of the anchoring section 3 is 4-
8m is equipped with multiple anchor cables 4 being rigidly connected to each other in anchoring section 3, to increase the bonding strength of anchor cable 4 and anchor hole 2, anchor cable
4 cylindricalitys or pyramidal structure thick for the thin bottom end in top, anchor cable 4 are equipped with the shelf 5 for increasing with 3 bonding strength of anchoring section,
The shelf 5 include with connecting cavity circular connector, the circular connector circumferentially it is multiple to anchor hole 2 extend
Reinforcing rib, forms the isolated area for setting secondary grouting pipe 7 between adjacent two reinforcing rib, and the shelf 5 is set on 4 bottom of anchor cable
End, along anchoring section 3 to 2 bottom 50-100mm of anchor hole at be extended with Grouting Pipe for injecting concrete, the Grouting Pipe includes
Once grouting is carried out to anchoring section 3 in anchoring section 3 and is stepped up to be detached from the once grouting pipe 6 of anchoring section 3 and be set on
The closely knit secondary grouting pipe 7 of secondary high-pressure slip-casting, institute are carried out to anchoring section 3 when 6 slip casting of once grouting pipe is completed in anchoring section 3
7 tube wall of secondary grouting pipe is stated equipped with injected hole, injected hole, which is equipped with, prevents concrete mortar during once grouting from entering secondary injection
The sealing paste of pipe 7 is starched, sealing paste is the prior art, is well known to those skilled in the art, and sealing paste can be adhesive tape or modeling
Expect film, slope surface matrix 8 poured above rock stratum 1, a casing 9 being embedded in slope surface matrix 8 is connected with anchoring section 3,
The angle of inclination of anchor hole 2 and casing 9 and level ground is 30 ° and in same angled straight lines, 9 tube wall of described sleeve pipe to
Outer extension is useful for increasing the reinforcing rib 13 with 8 bonding strength of slope surface matrix, and described sleeve pipe 9 and the junction of anchoring section 3 are equipped with
The sealing ring of the concrete mortar sleeve pipe 9 when pouring slope surface matrix 8 is prevented, sealing ring is coarse cloth or rubber ring, is being covered
A flexible prestressing rope 10 that 9 outside of casing is fixedly connected with and extended to anchor cable 4 is equipped in pipe 9, prestressing force rope 10 is adopted
With double joint steel strand wires, 10 length of prestressing force rope is 6-14m, and a prestressed slab 11 is connected at 9 nozzle of casing, described
Prestressing force rope 10 passes through prestressed slab 11, and being connected with one with prestressing force rope 10 acts on prestressed slab 11 for increasing rock
Layer 1 and the anchor head 12 of 8 pretightning force of slope surface matrix.
Construction procedure is as follows：
（1）, rock stratum trepanning：Anchor hole 2 is opened up on rock stratum 1, anchor hole 2 is obliquely installed, the slope surface 15 with slope surface matrix 8
Vertically；
（2）, setting anchoring section：After anchor hole 2 opens up, multiple anchor cables 4 being connected to each other, anchor cable 4 are put into anchor hole 2
2 port position of anchor hole is left in advance, shelf 5 is added between anchor cable 4 and anchor cable, increases the bonding strength of anchor cable 4 and anchor hole 2,
Grouting Pipe is put into away from 2 bottom 0.05-0.1m of anchor hole；
（3）, anchoring section slip casting：After Grouting Pipe is put into anchor hole, concrete progress is injected into anchor hole 2 by Grouting Pipe
Once grouting, until be poured into 2 port position of anchor hole, using once grouting pipe 6,6 nozzle of once grouting pipe during once grouting
Always in 50-100mm positions below slurry, marginal not slurry side is moved at 2 port of anchor hole until detaching anchor hole 2, once
Slip casting is completed in 1h, and once grouting pressure is 5Mp；After the completion of once grouting, at the cavity of 2 inner concrete of anchor hole generation
It is closely knit to carry out secondary grouting, injected hole is opened up, and to slip casting using secondary grouting pipe 7,7 tube wall of secondary grouting pipe during secondary grouting
Hole is blocked, and secondary grouting pressure is 0.25Mp；
（4）, setting pre-tighten section：After the completion of secondary grouting, prestressing force rope 10 and the anchor cable 14 at 2 port of anchor hole are consolidated
Fixed, prestressing force rope 10 using derusting, and in its surface brush pitch, finally wraps up pitch glass-fiber-fabric, package before pouring
The number of plies is no less than two layers, and casing 9 is placed at 2 port of anchor hole, is filled in 9 both ends socket of casing with butter, depth of cracking closure is
100-200mm, 9 tube wall of casing outside welding reinforcing rib 13, prestressing force rope 10 passes through casing 9 and extends to outside casing 9, to set
Pipe 9 and the junction of prestressing force rope 10 are sealed, and sealing is using coarse cloth or sealing rubber ring；
（5）, pour slope surface matrix：After preload section is provided with, concreting is carried out to 9 surrounding of casing, concrete is extremely
It is poured at 9 nozzle of casing more, makes with angled slope surface matrix 8, slope surface 15 and the casing 9 of slope surface matrix 8 are vertically arranged；
（6）, pre-tighten anchoring：After the completion of slope surface matrix 8 pours, prestressed slab 11, prestress rope are placed at 9 nozzle of casing
Rope 10 passes through prestressed slab 11, when the coagulation grade of the concrete at slope surface matrix 8 is more than 80%, tensioning pretightning force rope 10
Tension is made to reach 1.1-1.2N, tensioning 2 times keeps 15min, is offloaded to locking load every time, will be in preload using anchor head 12
The prestressing force rope 10 of power state is fixed on prestressed slab 11, after anchor head 12 locks, if finding to have apparent pretightning force to lose
During in relaxation, tensioning should be compensated, if find that pretightning force increment is more than the 10% of design axle power, is opened again after should loosening
It draws to turn down prestress value；
（7）, block：After the completion of pre-tightening anchoring, to exposed casing 9, prestressed slab 11 and anchor head 12 outside concrete
Concreting closure is carried out, anchor head 12 using derusting, applies anti-decaying paint and carry out antirust, during closure, be placed above before closure
Reinforcing steel net cover increases the bonding strength between slope surface matrix 8, and the concrete at anchor head 12 blocks thickness not less than 100mm, complete
Into construction.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (7)
1. slope surface building concrete layer landslide-proofing fixing device, it is characterised in that：The anchor that rock stratum opens up is inclined at including one
In solid hole, by concrete and the fixed anchoring section of anchor hole, equipped with multiple anchor cables being rigidly connected to each other, institute in anchoring section
State anchor cable be equipped with for increase with the shelf of anchoring section bonding strength, along anchoring section to anchor hole bottom 50-100mm at be extended with
For injecting the Grouting Pipe of concrete, slope surface matrix is poured above rock stratum, being connected with one with anchoring section is embedded in slope surface base
Internal casing is equipped with a flexible prestressing rope that outside of sleeve is fixedly connected with and extended to anchor cable in casing, is covering
A prestressed slab is connected at pipe nozzle, the prestressing force rope passes through prestressed slab, one is connected with prestressing force rope
It acts on prestressed slab and is used to increase rock stratum and the anchor head of slope surface matrix pretightning force, the solidification of the concrete at slope surface matrix
When degree is more than 80%, tensioning pretightning force rope makes tension reach 1.1-1.2N, and tensioning 2 times keeps 15min, is offloaded to lock every time
Determine load, the prestressing force rope for being in pretightning force state is fixed on prestressed slab using anchor head, after anchor head locking, if finding
When having apparent pretightning force loss in relaxation, tensioning should be compensated, pretightning force increment is more than the 10% of design axle power if finding
When, after should loosening again tensioning to turn down prestress value；The Grouting Pipe, which includes being set in anchoring section, carries out once anchoring section
Slip casting simultaneously steps up the once grouting pipe for being detached from anchoring section and in anchoring section when the slip casting of once grouting pipe is completed pair
Anchoring section carries out the closely knit secondary grouting pipe of secondary high-pressure slip-casting, and the secondary grouting tube wall is equipped with injected hole, injected hole
The sealing paste for preventing concrete mortar during once grouting from entering secondary grouting pipe is equipped with, the shelf is included with connecting cavity
Circular connector, the circular connector circumferentially multiple reinforcing ribs extended to anchor hole, shape between adjacent two reinforcing rib
Into for setting the isolated area of secondary grouting pipe.
2. slope surface building concrete layer landslide-proofing fixing device according to claim 1, it is characterised in that：The anchor cable is
The thin bottom end in top thick cylindricality or pyramidal structure, the shelf are set on anchor cable bottom end.
3. slope surface building concrete layer landslide-proofing fixing device according to claim 1, it is characterised in that：Described sleeve pipe with
The junction of anchoring section is equipped with the sealing ring for preventing the concrete mortar sleeve pipe when pouring slope surface matrix.
4. slope surface building concrete layer landslide-proofing fixing device according to claim 1, it is characterised in that：Described sleeve pipe pipe
Wall, which extends outwardly, to be useful for increasing the reinforcing rib with slope surface matrix bonding strength.
5. slope surface building concrete layer landslide-proofing fixing device according to claim 1, it is characterised in that：The anchor hole
And the angle of inclination of casing and level ground is 30 ° and is in same angled straight lines.
6. slope surface building concrete layer landslide-proofing fixing device according to claim 1, it is characterised in that：The anchoring section
Anchorage length be 4-8m.
7. slope surface building concrete layer landslide-proofing fixing device according to claim 1, it is characterised in that：Prestressing force rope
Length is 6-14m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515988.4A CN105926650B (en) | 2016-07-04 | 2016-07-04 | Slope surface building concrete layer landslide-proofing fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515988.4A CN105926650B (en) | 2016-07-04 | 2016-07-04 | Slope surface building concrete layer landslide-proofing fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105926650A CN105926650A (en) | 2016-09-07 |
| CN105926650B true CN105926650B (en) | 2018-07-06 |
Family
ID=56828828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610515988.4A Expired - Fee Related CN105926650B (en) | 2016-07-04 | 2016-07-04 | Slope surface building concrete layer landslide-proofing fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105926650B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110634374B (en) * | 2019-08-27 | 2021-03-26 | 中国地质大学（武汉） | Physical model experiment device for simulating deformation and damage process of building on landslide |
| CN111206599A (en) * | 2019-12-05 | 2020-05-29 | 邓婧 | Landslide prevention structure of building |
| CN113174977B (en) * | 2021-05-19 | 2022-05-10 | 核工业华南花都建设工程公司 | Slope support construction process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6499267B1 (en) * | 1999-11-19 | 2002-12-31 | Hilti Aktiengesellschaft | Rods secured in anchorage by at least one of organic and inorganic mortar composition |
| CN103147440A (en) * | 2013-03-14 | 2013-06-12 | 黄河勘测规划设计有限公司 | Construction method of prestressed anchor cable |
| CN104775428A (en) * | 2015-04-23 | 2015-07-15 | 万军利 | Compound-type prestressed anchor cable structure and construction method thereof |
| CN105422150A (en) * | 2015-11-23 | 2016-03-23 | 浙江工业大学工程设计集团有限公司 | FRP sprinkling irrigation combined anchor bolt |
| CN205822204U (en) * | 2016-07-04 | 2016-12-21 | 青岛一建集团有限公司 | Domatic building concrete layer landslide-proofing fixing device |
-
2016
- 2016-07-04 CN CN201610515988.4A patent/CN105926650B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6499267B1 (en) * | 1999-11-19 | 2002-12-31 | Hilti Aktiengesellschaft | Rods secured in anchorage by at least one of organic and inorganic mortar composition |
| CN103147440A (en) * | 2013-03-14 | 2013-06-12 | 黄河勘测规划设计有限公司 | Construction method of prestressed anchor cable |
| CN104775428A (en) * | 2015-04-23 | 2015-07-15 | 万军利 | Compound-type prestressed anchor cable structure and construction method thereof |
| CN105422150A (en) * | 2015-11-23 | 2016-03-23 | 浙江工业大学工程设计集团有限公司 | FRP sprinkling irrigation combined anchor bolt |
| CN205822204U (en) * | 2016-07-04 | 2016-12-21 | 青岛一建集团有限公司 | Domatic building concrete layer landslide-proofing fixing device |
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| Publication number | Publication date |
|---|---|
| CN105926650A (en) | 2016-09-07 |
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Granted publication date: 20180706 |