CN106120817B - A kind of slope surface building concrete layer landslide-proofing construction technology - Google Patents
A kind of slope surface building concrete layer landslide-proofing construction technology Download PDFInfo
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- CN106120817B CN106120817B CN201610515989.9A CN201610515989A CN106120817B CN 106120817 B CN106120817 B CN 106120817B CN 201610515989 A CN201610515989 A CN 201610515989A CN 106120817 B CN106120817 B CN 106120817B
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- slope surface
- anchor
- anchor hole
- casing
- concrete layer
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- 239000004567 concrete Substances 0.000 title claims abstract description 43
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 238000004873 anchoring Methods 0.000 claims abstract description 24
- 239000011159 matrix material Substances 0.000 claims abstract description 23
- 238000007569 slipcasting Methods 0.000 claims abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 235000014121 butter Nutrition 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000036316 preload Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 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
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (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 construction technology, a kind of slope surface building concrete layer landslide-proofing construction technology, including following construction procedure：（1）, rock stratum trepanning；（2）, setting anchoring section；（3）, anchoring section slip casting；（4）, anchoring section slip casting it is closely knit；（5）, setting pre-tighten section；（6）, pour slope surface matrix；（7）, pre-tighten anchoring；（8）, block.The present invention, which carries, can prevent occurred level between slopes and rock mass basis from sliding, stable connection, and construction is simple is convenient.
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 construction works
Skill.
Background technology
In recent years, with the high speed development of Building Trade in China, in side slope works more and more involved in building construction process
Journey in deep foundation pit slope work progress, usually makes ground be organically combined together with slope surface using anchor cable.And general pre-
In stress anchor cable construction, use drilling machine pore-forming that prestress anchorage cable is fixed in hole to reach the work(of high slope disease control more
Can, and pass through application prestressing force, side slope body deep layer deformation and failure can be resisted, is affixed on the reinforced concrete frame side slope of slope surface
Surface layer ground plays frame hoop, limits surface layer ground deformation and failure, vegetative protection is carried out in frame, can prevent flow
Slope surface is washed away, and the small-sized deforming of the slope such as slope surface ground weathering off, falling rocks can be prevented, and reaches beautification natural environment
Effect, and the problem of occurred level slides between slopes and rock mass basis is often encountered in the construction process, influence connection
Stability.
Invention content
It can prevent occurred level between slopes and rock mass basis from sliding to solve the above problems, the present invention provides one kind,
Stable connection, the convenient slope surface building concrete layer landslide-proofing construction technology of construction is simple.
The present invention solve the technical solution that uses of above-mentioned technical problem for：A kind of slope surface building concrete layer landslide-proofing construction
Technique, including following construction procedure：
（1）, rock stratum trepanning：Anchor hole, anchor hole and the slope surface of slope surface matrix subsequently poured are opened up on ground horizon d
It is vertically arranged；
（2）, setting anchoring section：After anchor hole opens up, multiple anchor cables being connected to each other are put into anchor hole, anchor cable stretches out
Grouting Pipe is put into away from the 50-100mm of anchor hole bottom by anchor hole port；
（3）, anchoring section slip casting：After Grouting Pipe is put into anchor hole, concrete progress is injected into anchor hole by Grouting Pipe
Once grouting, up to concreting to anchor hole port position；
（4）, anchoring section slip casting it is closely knit：After the completion of once grouting, to carrying out two at the cavity of anchor hole inner concrete generation
Secondary slip casting is closely knit；
（5）, setting pre-tighten section：After the completion of secondary grouting, prestressing force rope and the anchor cable at anchor hole port are fixed,
The casing that the anchor cable stretched out is allowed to penetrate is placed at anchor hole port, prestressing force rope passes through casing and extends to outside casing, will
Casing is sealed processing with anchor hole port；
（6）, pour slope surface matrix：After preload section is provided with, concreting, concreting are carried out to vicinity
To at casing nozzle, make with angled slope surface matrix, slope surface and the casing of slope surface matrix are vertically arranged；
（7）, pre-tighten anchoring：After the completion of slope surface matrix pours, prestressed slab is placed at casing nozzle, prestressing force rope is worn
Prestressed slab is crossed, when the coagulation grade of the concrete at slope surface matrix is more than 80%, tensioning pretightning force rope reaches tension
1.1-1.2N, tensioning 2 times, keeps 15min every time, is offloaded to locking load, and will be in the pre- of pretightning force state using anchor head should
Power rope is fixed on prestressed slab, after anchor head locking, if find to have apparent pretightning force loss in relaxation, should be mended
Repay tensioning, if when finding that pretightning force increment is more than the 10% of design axle power, after should loosening again tensioning to turn down prestress value；
（8）, block：After the completion of pre-tightening anchoring, exposed casing, prestressed slab and anchor head outside concrete is mixed
Solidifying soil pours closure, completes construction.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, it is primary to note using once grouting pipe during once grouting
Pipe nozzle is starched always in 50-100mm positions below slurry, and marginal not slurry side is moved at anchor hole port until detaching anchoring
Hole, once grouting are completed in 1h, and once grouting pressure is 5Mp.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, using secondary grouting pipe, secondary injection during secondary grouting
Slurry tube wall opens up injected hole, and injected hole is blocked, and secondary grouting pressure is 0.25Mp.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, is disposed with along anchor cable axis direction on anchor cable
Multiple isolating frames for being used to enhance anchor cable and anchor hole inner concrete bonding strength.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, the isolating frame include the annular with connecting cavity even
Fitting, the circular connector circumferentially multiple reinforcing ribs extended to anchor hole, forms between adjacent two reinforcing rib and is used for
The isolated area of secondary grouting pipe is set.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, prestressing force rope are used before pouring and are derusted,
And in its surface brush pitch, pitch glass-fiber-fabric is finally wrapped up, the package number of plies is no less than two layers, is filled out in the socket of casing both ends with butter
It fills, depth of cracking closure 100-200m.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, anchor head before closure, using derusting, apply anti-decaying paint into
Row antirust during closure, increases bonding strength between slope surface matrix reinforcing steel net cover is placed above.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, coaxial identical with anchor hole holding of the anchor cable
Degree.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, set tube wall outside welding reinforcing rib.
Above-mentioned slope surface building concrete layer landslide-proofing construction technology, the concrete at anchor head block thickness and are not less than
100mm。
The beneficial effects of the present invention are：Anchor hole is opened up on rock mass, anchor cable is put into anchor hole, between anchor cable and anchor cable
Isolating frame is connected, ensures the bonding strength of hole and anchor cable, effectively avoids the loosening of connection；Using once grouting pipe and secondary
Grouting Pipe is deep at the 50-100mm of anchor hole bottom, and passes through once grouting pipe once grouting, secondary grouting pipe secondary pressurized note
It starches closely knit, makes anchoring section more closely knit, no cavitation；Prestressing force rope is blocked with anchor cable junction, avoids concrete
Sleeve pipe causes prestressing force rope freely movable in casing, tensile stress is impacted；Tensioning pretightning force rope
Tension is made to reach 1.1-1.2N, tensioning 2 times keeps 15min every time, increases the bonding strength of rock mass and slope surface matrix, avoids producing
Raw sliding loosens.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the partial structural diagram of the present invention；
Fig. 3 is the sectional view of A-A in the present invention；
Fig. 4 is the sectional view of B-B in the present invention；
Fig. 5 is middle sleeve structure diagram of the present invention.
Specific embodiment
The present invention is described in further details with reference to specific embodiment.
As shown in Fig. 1,2,3,4,5, a kind of slope surface building concrete layer landslide-proofing construction technology, including following construction step
Suddenly：
（1）, rock stratum trepanning：Anchor hole 2 is opened up on ground horizon d 1, anchor hole 2 is obliquely installed, and angle is by slope surface base
The slope surface 14 of body 10 determines, vertical with the slope surface 14 of slope surface matrix 10, and anchoring hole depth is 2-6m；
（2）, setting anchoring section：After anchor hole 2 opens up, multiple anchor cables 3 being connected to each other, anchor cable 3 are put into anchor hole 2
2 port of anchor hole is stretched out, Grouting Pipe is put into away from 2 bottom 50-100mm of anchor hole；
（3）, anchoring section slip casting：After Grouting Pipe is put into anchor hole 2, injected by Grouting Pipe into anchor hole 2 concrete into
Row once grouting, using once grouting pipe 4, once grouting when concreting to 2 port position of anchor hole, 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 4 nozzle of pipe
2, once grouting is completed in 1h, and once grouting pressure is 5Mp；
（4）, anchoring section slip casting it is closely knit：After the completion of once grouting, to carrying out two at the cavity of 2 inner concrete of anchor hole generation
Secondary slip casting is closely knit, and using secondary grouting pipe 5 during secondary grouting, 5 tube wall of secondary grouting pipe opens up injected hole, and injected hole is carried out
It blocks, secondary grouting pressure is 0.25Mp；
（5）, setting pre-tighten section：After the completion of secondary grouting, prestressing force rope 7 and the anchor cable 6 at 2 port of anchor hole are consolidated
Fixed, prestressing force rope 7 using derusting, and in its surface brush pitch, finally wraps up pitch glass-fiber-fabric, wrapping layer before pouring
No less than two layers of number is placed the casing 8 that the anchor cable 6 stretched out is allowed to penetrate at 2 port of anchor hole, is used in 8 both ends socket of casing
Butter is filled, depth of cracking closure 100-200mm, and welding reinforcing rib 13 on the outside of 8 tube wall of casing, prestressing force rope 7 passes through casing 8 simultaneously
It extends to outside casing 8, casing 8 and 2 port of anchor hole is sealed processing, sealing is using coarse cloth or sealing rubber ring；
（6）, pour slope surface matrix：After preload section is provided with, concreting is carried out to 8 surrounding of casing, concrete pours
It builds at 8 nozzle of casing, makes with angled slope surface matrix 10, slope surface 14 and the casing 8 of slope surface matrix 10 are vertically arranged；
（7）, pre-tighten anchoring：After the completion of slope surface matrix 10 pours, prestressed slab 9, prestress rope are placed at 8 nozzle of casing
Rope 7 passes through prestressed slab 9, and when the coagulation grade of the concrete at slope surface matrix 10 is more than 80%, tensioning pretightning force rope 7 makes
Tension reaches 1.1-1.2N, and tensioning 2 times keeps 15min, is offloaded to locking load every time, will be in pretightning force using anchor head 11
The prestressing force rope 7 of state is fixed on prestressed slab 9, after anchor head 11 locks, if finding to have apparent pretightning force loss to be in
Relaxation when, tensioning should be compensated, if find pretightning force increment be more than design axle power 10%, after should loosening again tensioning with
Turn down prestress value；
（8）, block：Pre-tighten anchoring after the completion of, to exposed casing 8, prestressed slab 9 and anchor head 11 outside concrete into
Row concreting blocks, and anchor head 11 using derusting, applies anti-decaying paint and carry out antirust, during closure, steel is being placed above before closure
Muscle guard increases the bonding strength between slope surface matrix 10, and reinforcing steel net cover thickness is not less than 50mm, the concrete at anchor head 11
Thickness is blocked not less than 100mm, completes construction.
Although the above-mentioned specific embodiment with reference to the present invention is described, not to the scope of the present invention
Limitation, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art do 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. a kind of slope surface building concrete layer landslide-proofing construction technology, it is characterised in that：Including following construction procedure：
（1）, rock stratum trepanning：Anchor hole is opened up on ground horizon d, anchor hole is vertical with the slope surface of slope surface matrix subsequently poured
Setting；
（2）, setting anchoring section：After anchor hole opens up, multiple anchor cables being connected to each other are put into anchor hole, anchor cable stretches out anchoring
Grouting Pipe is put into away from the 50-100mm of anchor hole bottom, is disposed on anchor cable along anchor cable axis direction multiple by nose end mouth
For enhancing the isolating frame of anchor cable and anchor hole inner concrete bonding strength, the isolating frame includes the annular with connecting cavity even
Fitting, the circular connector circumferentially multiple reinforcing ribs extended to anchor hole, forms between adjacent two reinforcing rib and is used for
The isolated area of secondary grouting pipe is set；
（3）, anchoring section slip casting：After Grouting Pipe is put into anchor hole, concrete is injected into anchor hole by Grouting Pipe and is carried out once
Slip casting, up to concreting to anchor hole port position；
（4）, anchoring section slip casting it is closely knit：After the completion of once grouting, to carrying out secondary injection at the cavity of anchor hole inner concrete generation
To starch closely knit, using secondary grouting pipe during secondary grouting, secondary grouting tube wall opens up injected hole, and injected hole is blocked,
Secondary grouting pressure is 0.25Mp；
（5）, setting pre-tighten section：After the completion of secondary grouting, prestressing force rope and the anchor cable at anchor hole port are fixed, anchored
The casing that the anchor cable stretched out is allowed to penetrate is placed at nose end mouth, prestressing force rope passes through casing and extends to outside casing, by casing
Processing is sealed with anchor hole port；
（6）, pour slope surface matrix：After preload section is provided with, concreting, concreting to set are carried out to vicinity
At pipe nozzle, make with angled slope surface matrix, slope surface and the casing of slope surface matrix are vertically arranged；
（7）, pre-tighten anchoring：After the completion of slope surface matrix pours, prestressed slab is placed at casing nozzle, prestressing force rope passes through pre-
Stress plate, when the coagulation grade of the concrete at slope surface matrix is more than 80%, tensioning pretightning force rope makes tension reach 1.1-
1.2N, tensioning 2 times, keeps 15min every time, is offloaded to locking load, the prestress rope that will be in pretightning force state using anchor head
Rope is fixed on prestressed slab, after anchor head locks, if find to have apparent pretightning force loss in relaxation, should be compensated and be opened
Draw, if when finding that pretightning force increment is more than the 10% of design axle power, after should loosening again tensioning to turn down prestress value；
（8）, block：After the completion of pre-tightening anchoring, concrete is carried out to exposed casing, prestressed slab and anchor head outside concrete
Closure is poured, completes construction.
2. slope surface building concrete layer landslide-proofing construction technology according to claim 1, it is characterised in that：During once grouting
Using once grouting pipe, for once grouting pipe nozzle always in 50-100mm positions below slurry, marginal not slurry side is moved to anchoring
Until detaching anchor hole at nose end mouth, once grouting is completed in 1h, and once grouting pressure is 5Mp.
3. slope surface building concrete layer landslide-proofing construction technology according to claim 1, it is characterised in that：Prestressing force rope
Using derusting before pouring, and in its surface brush pitch, pitch glass-fiber-fabric is finally wrapped up, the package number of plies is no less than two layers,
It is filled in the socket of casing both ends with butter, depth of cracking closure 100-200mm.
4. slope surface building concrete layer landslide-proofing construction technology according to claim 1, it is characterised in that：Anchor head is blocking
Before, it using derusting, applies anti-decaying paint and carries out antirust, during closure, increase company between slope surface matrix reinforcing steel net cover is placed above
Connect intensity.
5. slope surface building concrete layer landslide-proofing construction technology according to claim 1, it is characterised in that：The anchor cable with
Anchor hole keeps identical concentricity.
6. slope surface building concrete layer landslide-proofing construction technology according to claim 1, it is characterised in that：It covers outside tube wall
Weld reinforcing rib in side.
7. slope surface building concrete layer landslide-proofing construction technology according to claim 1, it is characterised in that：It is mixed at anchor head
Solidifying grave blocks up thickness not less than 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515989.9A CN106120817B (en) | 2016-07-04 | 2016-07-04 | A kind of slope surface building concrete layer landslide-proofing construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515989.9A CN106120817B (en) | 2016-07-04 | 2016-07-04 | A kind of slope surface building concrete layer landslide-proofing construction technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120817A CN106120817A (en) | 2016-11-16 |
| CN106120817B true CN106120817B (en) | 2018-07-03 |
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| CN201610515989.9A Expired - Fee Related CN106120817B (en) | 2016-07-04 | 2016-07-04 | A kind of slope surface building concrete layer landslide-proofing construction technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005097B (en) * | 2017-12-15 | 2024-02-23 | 兰州理工大学 | High-steep slope top construction/building anchor raft foundation structure and construction method |
| CN112832262B (en) * | 2021-01-05 | 2022-07-05 | 汕头大学 | Geotechnical engineering slope reinforcement device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN204703159U (en) * | 2015-06-17 | 2015-10-14 | 万军利 | Prefabricated anchor head pressure anchor wire structure |
| CN105569049A (en) * | 2015-12-18 | 2016-05-11 | 深圳市福田建安建设集团有限公司 | Construction method of high-pressure-bearing water-depth foundation pit supporting anchor rod |
-
2016
- 2016-07-04 CN CN201610515989.9A patent/CN106120817B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN204703159U (en) * | 2015-06-17 | 2015-10-14 | 万军利 | Prefabricated anchor head pressure anchor wire structure |
| CN105569049A (en) * | 2015-12-18 | 2016-05-11 | 深圳市福田建安建设集团有限公司 | Construction method of high-pressure-bearing water-depth foundation pit supporting anchor rod |
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| CN106120817A (en) | 2016-11-16 |
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Granted publication date: 20180703 |