CN107503362A - A kind of compound antiskid piling wall retaining structure and construction method suitable for reservoir stability - Google Patents

A kind of compound antiskid piling wall retaining structure and construction method suitable for reservoir stability Download PDF

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Publication number
CN107503362A
CN107503362A CN201710862122.5A CN201710862122A CN107503362A CN 107503362 A CN107503362 A CN 107503362A CN 201710862122 A CN201710862122 A CN 201710862122A CN 107503362 A CN107503362 A CN 107503362A
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CN
China
Prior art keywords
antiskid
retaining
pile
reservoir stability
piling
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CN201710862122.5A
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Chinese (zh)
Inventor
王杰涛
刘亚洲
於李军
苏爱军
权锋
李德伟
尹先忠
饶学斌
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Wuhan Municipal Engineering Design and Research Institute Co Ltd
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Wuhan Municipal Engineering Design and Research Institute Co Ltd
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Application filed by Wuhan Municipal Engineering Design and Research Institute Co Ltd filed Critical Wuhan Municipal Engineering Design and Research Institute Co Ltd
Priority to CN201710862122.5A priority Critical patent/CN107503362A/en
Publication of CN107503362A publication Critical patent/CN107503362A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • E02D17/207Securing of slopes or inclines with means incorporating sheet piles or piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil

Abstract

The present invention relates to a kind of compound antiskid piling wall retaining structure and construction method suitable for reservoir stability, its structure includes antiskid pile group and retaining wall, antiskid pile group be vertically arranged in retaining wall and reservoir stability it is domatic between and support block cob wall, and the upper end of antiskid pile group is fixedly connected with the bottom of retaining wall, the lower end of antiskid pile group is extended downwardly into the antiskid stratum being mounted in below reservoir stability slide strips.The present invention is by the way that antiskid pile group build-in is arranged in the antiskid stratum below reservoir stability sliding surface, stability against sliding requirement can be met, by the way of stake top gravity-type concrete retaining wall, the slip casting type antiskid pile group and pile peripheral earth for making bottom form one, and it is coupled with top gravity retaining wall, combined type antiskid piling wall is formed, good integrity, three-dimensional effect is optimized from structure makes stress more reasonable.

Description

A kind of compound antiskid piling wall retaining structure and construction method suitable for reservoir stability
Technical field
Paddled slope geological Way of Engineering Technology in Control of Underground field the present invention relates to storehouse bank, more particularly to a kind of be applied to storehouse bank The compound antiskid piling wall retaining structure and construction method of side slope.
Background technology
China's construction of hydropower facilities horizontal position is at the forefront in the world, and such as built Three Gorges Projects are water conservancy pivots maximum in the world Knob, but us control flood, the good society such as generate electricity and also triggering while economic benefit exacerbates bringing for the hydraulic engineering such as Three Gorges The geological disaster of reservoir area, wherein reservoir bank slump are exactly one of most common Geological Hazard.Currently used reservoir stability is controlled Reason measure is how similar with mountain area side slope, such as cuts slope unloading, friction pile, retaining wall.Because reservoir stability is paddle side slope and water Position is changed greatly by reservoir filling position influence on system operation, when reservoir stability treatment range is located at below water level and slip mass (bank slump) depth When spending larger, need to implement below water level using the control measures such as slope unloading, friction pile, retaining wall are cut, in the prior art, base Hole excavation sealing difficulty is big, and cost is high and construction risk is big, therefore for reservoir stability especially highly permeable Rock And Soil storehouse bank Slope needs a kind of control measures efficiently, inexpensive.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of good integrity, are applied Work speed is fast, operation side is small, suitable for the compound antiskid piling wall of side slope of paddling, particularly highly permeable Rock And Soil reservoir stability Retaining structure and construction method.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:A kind of compound antiskid piling wall suitable for reservoir stability Retaining structure, including antiskid pile group and retaining wall, it is domatic with reservoir stability that the antiskid pile group is vertically arranged in the retaining wall Between and support the retaining wall, and the upper end of the antiskid pile group is fixedly connected with the bottom of the retaining wall, the antiskid The lower end of pile group is mounted in the antiskid stratum below reservoir stability slide strips.
The beneficial effects of the invention are as follows:The compound antiskid piling wall retaining structure of the present invention, by by the sliding pile group build-in It is arranged in the antiskid stratum below reservoir stability slide strips, stability against sliding requirement can be met, using stake top gravity type coagulation The mode of native retaining wall, makes the slip casting type antiskid pile group of bottom and pile peripheral earth forms one, and with top gravity retaining wall It is coupled, forms combined type antiskid piling wall, good integrity, three-dimensional effect is optimized from structure makes stress more reasonable.In addition, knot Structure construction is not required to excavate on a large scale, and the mechanical execution scope of operation is small, and speed of application is fast, and security is good, and especially emergency repair is administered Engineering is more fast and reliable.The structure not only good economy performance, stress performance is good, and anti-slide performance is strong.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement:
Further:The antiskid pile group includes multiple bored concrete piles and multiple rotary churning piles, the multiple bored concrete pile and multiple rotations The parallel staggered setting of stake is sprayed, the upper end of the multiple bored concrete pile extends upwardly into the retaining wall respectively, the multiple The top of rotary churning pile is fixedly connected with the bottom of the retaining wall, the lower end of the multiple bored concrete pile and multiple rotary churning piles respectively to Under be mounted in the antiskid stratum below reservoir stability slide strips, and the bored concrete pile be located at the sliding stratum length be more than it is described Rotary churning pile is located at the length in the antiskid stratum.
The above-mentioned further beneficial effect of scheme is:Composite foundation can be improved well by the bored concrete pile and rotary churning pile The integral rigidity of soil, in the antiskid stratum below the hill wash band of bored concrete pile depth embedded base bank, rotary churning pile stretches into reservoir stability cunning Pile quality with following guarantee bored concrete pile, three-dimensional effect is optimized from structure, makes stress more reasonable.
Further:The bored concrete pile is poured by H profile steel and cement mortar and is made, and the upper end of the H profile steel anchor into it is described In retaining wall, the lower end of the H profile steel is inserted into the antiskid stratum below the reservoir stability slide strips, the cement mortar Top is fixedly connected with the bottom of the retaining wall, and lower end is extended downwardly into the antiskid stratum below reservoir stability slide strips.
The above-mentioned further beneficial effect of scheme is:By the way that the upper end of the H profile steel is anchored into the retaining wall so that The bored concrete pile is firmly connected with the retaining wall, ensures the globality of compound antiskid piling wall supporting file, improves whole compound antiskid The stability of piling wall supporting file.
Further:The retaining wall is the composite steel-concrete structure made of steel reinforcement cage and concrete building stones pour, And the steel reinforcement cage is located at the reinforced concrete structure bottom, the upper end of the H profile steel extends upwardly into the armored concrete In structure, and the steel reinforcement cage is fixedly connected with the part that the H profile steel is stretched into the reinforced concrete structure.
The above-mentioned further beneficial effect of scheme is:By the way that the upper end of the H profile steel is extended upwardly into the reinforced concrete In soil structure, and the steel reinforcement cage and the H profile steel are stretched into the elongated full weld of reinforced concrete structure inner rim, make earth-retaining Wall can the company's of playing beam action, improve the integral rigidity of compound antiskid piling wall supporting file, and can presses to antiskid pile group, resist compared with Big Thrust of Landslide.
Further:The retaining wall outer surface is coated with water-repellent paint.
The above-mentioned further beneficial effect of scheme is:By coating water-repellent paint in the retaining wall outer surface, to ensure Retaining wall is not influenceed by the periodically immersion of storehouse water and underground water, is improved the corrosion resistance of the retaining wall, is strengthened the earth-retaining The structural stability of wall.
Further:The retaining wall is provided with multiple single slope drainage passages, and the multiple single slope drainage passage is along described The thickness direction array distribution of retaining wall simultaneously runs through the retaining wall, and the single slope drainage passage is set with horizontal direction in angle Put, and close Ku Qu one end of the single slope drainage passage is less than close to water source one end in reservoir stability.
The above-mentioned further beneficial effect of scheme is:, can be by reservoir stability by setting the single slope drainage passage Moisture is discharged into the canal of storehouse, during going up in storehouse water in a canal position, due to the one-way conduction performance of osculum, prevents storehouse channel water from entering The immersion to slide strips is caused to soften in slopes.
Further:The bottom of the retaining wall is provided with concrete cushion, and the steel reinforcement cage is located at the concrete cushion Top, the upper end of the H profile steel is stretched into the reinforced concrete structure after being upward through the concrete cushion, and the H Shaped steel is located at part and the steel reinforcement cage full weld in the reinforced concrete structure.
The above-mentioned further beneficial effect of scheme is:By setting the concrete cushion, it can be ensured that the friction pile Quality after group's perfusion effect and retaining wall shaping, further improve the stability of the retaining wall.
Present invention also offers a kind of construction method of the compound antiskid piling wall retaining structure suitable for reservoir stability, Methods described includes:
Step 1:Antiskid pile group is vertically arranged in reservoir stability slide strips edge;
Step 2:Banding steel cage, and the steel reinforcement cage is fixedly connected with the upper end of the antiskid pile group;
Step 3:Formwork, and casting concrete building stones are carried out in the steel reinforcement cage periphery, form retaining wall;
Step 4:Waterproof coating layer is coated in the earth-retaining face of wall, completes construction.
The compound antiskid piling wall retaining structure construction method of the present invention, by the way that the sliding pile group build-in is arranged on into storehouse bank In the domatic following antiskid stratum in slope, stability against sliding requirement can be met, using the side of stake top gravity-type concrete retaining wall Formula, the slip casting type antiskid pile group of bottom and pile peripheral earth is formed one, and be coupled with top gravity retaining wall, composition is compound Formula antiskid piling wall, good integrity, three-dimensional effect is optimized from structure makes stress more reasonable.In addition, structure construction is not required to greatly Scale is excavated, and the mechanical execution scope of operation is small, and speed of application is fast, and security is good, and especially emergency repair harnessing project is quicker Reliably.The structure not only good economy performance, stress performance is good, and anti-slide performance is strong.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement:
Further:The step 1 specifically includes:
Step 11:Multiple rotary churning piles are in a row arranged at intervals in reservoir stability slide strips edge;
Step 12:Set multiple bored concrete piles in a row in the reservoir stability slide strips edge, and the bored concrete pile with it is described In the parallel staggered antiskid stratum being arranged on below the reservoir stability slide strips of rotary churning pile, and the bored concrete pile is positioned at described Length in antiskid stratum is more than the length that the rotary churning pile is located in the antiskid stratum, wherein, the rotary churning pile is using single Pipe churning again, the ratio of mud of cement grout is 1:1.
The above-mentioned further beneficial effect of scheme is:By setting the bored concrete pile in the reservoir stability slide strips edge And rotary churning pile, the integral rigidity of composite foundation soil can be improved well, the antiskid below the hill wash band of bored concrete pile embedded base bank In layer, rotary churning pile stretches into below reservoir stability slide strips the pile quality for ensureing bored concrete pile, and three-dimensional effect is optimized from structure, is made Stress is more reasonable.
Further:In the step 12, multiple bored concrete piles are set to specifically include:
Mechanical pipe-following drilling is used in the reservoir stability slide strips edge, is formed and lives staggeredly interval setting with the churning Drilling, and be downwardly into each drilling in H profile steel to the antiskid stratum, and the top of the H profile steel is exposed Ground;
Slip casting twice in succession is carried out to each drilling, and the H profile steel is inlayed and is fixed on the reservoir stability cunning Corresponding to band in the drilling, bored concrete pile is formed, wherein, grouting pressure 0.3-1.5MPa, the ratio of mud 0.55.
The above-mentioned further beneficial effect of scheme is:Formed and drilled by using mechanical pipe-following drilling, and each described It is downwardly into drilling in H profile steel to the antiskid stratum, and secondary grouting is carried out to each drilling, can be caused described H profile steel is firm to be fixed in the reservoir stability slide strips, and can bear larger Thrust of Landslide.
Brief description of the drawings
Fig. 1 is the compound antiskid piling wall retaining structure top view suitable for reservoir stability of the present invention;
Fig. 2 is A-A structure sectional views in Fig. 1;
The compound antiskid piling wall retaining structure suitable for reservoir stability that Fig. 3 is the present invention administers reservoir bank landslide structural representation Figure;
Fig. 4 is B-B structure sectional views in Fig. 2.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, antiskid pile group, 2, bored concrete pile, 3, retaining wall, 4, rotary churning pile, 5, cement mortar, 6, H profile steel, 7, steel reinforcement cage, 8, Concrete building stones, 9, waterproof coating layer, 10, concrete cushion, 11, waterline under reservoir stability, 12, reservoir stability slide strips, 13, Single slope drainage passage.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
As Figure 1-4, a kind of compound antiskid piling wall retaining structure suitable for reservoir stability, including the He of antiskid pile group 1 Retaining wall 3, the antiskid pile group 1 be vertically arranged in the retaining wall 3 and reservoir stability it is domatic between and support the retaining wall 3, and the upper end of the antiskid pile group 1 is fixedly connected with the bottom of the retaining wall 3, the lower end of the antiskid pile group 1 is embedding downwards Gu in the antiskid stratum below reservoir stability slide strips.
The present invention compound antiskid piling wall retaining structure, by by the sliding pile group build-in be arranged on reservoir stability slide strips with Under antiskid stratum in, can meet stability against sliding requirement, by the way of stake top gravity-type concrete retaining wall, make bottom Slip casting type antiskid pile group and pile peripheral earth form one, and is coupled with top gravity retaining wall, composition combined type friction pile Wall, good integrity, three-dimensional effect is optimized from structure makes stress more reasonable.In addition, structure construction is not required to excavate on a large scale, The mechanical execution scope of operation is small, and speed of application is fast, and security is good, and especially emergency repair harnessing project is more fast and reliable.The knot Structure not only good economy performance, stress performance is good, and anti-slide performance is strong.
In the present embodiment, the antiskid pile group 1 includes multiple bored concrete piles 2 and multiple rotary churning piles 4, the multiple bored concrete pile 2 Staggered setting parallel with multiple rotary churning piles 4, the upper end of the multiple bored concrete pile 2 extend upwardly into the retaining wall 3 respectively Interior, the top of the multiple rotary churning pile 4 is fixedly connected with the bottom of the retaining wall 3, the multiple bored concrete pile 2 and multiple churnings The lower end of stake 4 is mounted in antiskid stratum of the reservoir stability slide strips below 12 separately down, and the bored concrete pile 2 is located at the cunning The length on stratum is more than the length that the rotary churning pile 4 is located at the antiskid stratum.Can be very by the bored concrete pile 2 and rotary churning pile 4 The good integral rigidity for improving composite foundation soil, in antiskid stratum of the depth embedded base bank hill wash band of bored concrete pile 2 below 12, rotation Reservoir stability slide strips ensure bored concrete pile pile quality below 12 is stretched into spray stake 4, and three-dimensional effect is optimized from structure, makes stress It is more reasonable.
In practice, a diameter of 150-200mm of the bored concrete pile 2, level interval 1-1.5m, and the bored concrete pile 2 Lower end is extended downwardly into antiskid stratum of the reservoir stability slide strips below 12, the above 0.5m above ground level of bored concrete pile 2, the filling The horizontal range noted between stake 2 and adjacent rotary churning pile 4 is 0.5m.
A diameter of 500mm of the rotary churning pile 4, often arrange in rotary churning pile 4 between the two neighboring rotary churning pile 4 it is horizontal away from From for 1-1.5m, the horizontal range between rotary churning pile 4 described in adjacent two row is 1.2-1.5m, and the rotary churning pile 4 extends downwardly into storehouse Depth in antiskid stratum of the bank hill wash band below 12 is 3-5m, and multiple rotary churning piles 4 are in quincunx distribution, described Rotary churning pile 4 uses substance pipe churning.
In the present embodiment, the bored concrete pile 2 is poured and is made by H profile steel 6 and cement mortar 5, and the upper end of the H profile steel 6 Anchor into the retaining wall 3, the lower end of the H profile steel 6 is inserted into antiskid stratum of the reservoir stability slide strips below 12, institute The top for stating cement mortar 5 is fixedly connected with the bottom of the retaining wall 3, and lower end extends downwardly into reservoir stability slide strips below 12 In antiskid stratum.By the way that the upper end of the H profile steel 6 is anchored into the retaining wall 3 so that the bored concrete pile 2 and the earth-retaining Wall 3 firmly connects, and ensures the globality of compound antiskid piling wall supporting file, improves the stability of whole compound antiskid piling wall supporting file.By Preceding description understands that the depth that the upper end of the H profile steel 6 is anchored into the retaining wall 3 is 0.5m, ensures compound antiskid piling wall branch The globality of shelves.
In the present embodiment, the retaining wall 3 is the composite reinforcing steel bar coagulation made of steel reinforcement cage 7 and concrete building stones 8 pour Soil structure, and the steel reinforcement cage 7 is located at the reinforced concrete structure bottom, the upper end of the H profile steel 6 extends upwardly into the steel In tendon concrete structure, and the steel reinforcement cage 7 is fixed with the part that the H profile steel 6 is stretched into the reinforced concrete structure and connected Connect.By the way that the upper end of the H profile steel 6 is extended upwardly into the reinforced concrete structure, and by the steel reinforcement cage 7 and the H Shaped steel 6 stretches into the elongated full weld of reinforced concrete structure inner rim, make retaining wall 3 can the company's of playing beam action, improve multiple The integral rigidity of antiskid piling wall supporting file is closed, and can presses to antiskid pile group 1, resists larger Thrust of Landslide.
In practice, the height of the steel reinforcement cage 7 is 700-1000mm, and the steel reinforcement cage 7 and the H types above ground level The elongated full weld in steel periphery.
Preferably, in the above-described embodiments, the outer surface of retaining wall 3 is coated with water-repellent paint 9.By in the earth-retaining The outer surface of wall 3 coats water-repellent paint 9, to ensure that retaining wall 3 is not influenceed by the periodically immersion of storehouse water and underground water, described in raising The corrosion resistance of retaining wall 3, strengthen the structural stability of the retaining wall 3.Here, the water-repellent paint is prevented for polymer cement Water paint.
Preferably, in the above-described embodiments, the retaining wall 3 is provided with multiple single slope drainage passages 13, the multiple list Thickness direction array distribution to drainage channel 13 along the retaining wall 3 simultaneously runs through the retaining wall 3, and the single slope drainage leads to Road 13 is set with horizontal direction in angle, and close Ku Qu one end of the single slope drainage passage 13 is less than in reservoir stability Water source one end.By setting the single slope drainage passage 13, moisture in reservoir stability can be discharged into the canal of storehouse, in storehouse water in a canal position During rise, due to the one-way conduction performance of osculum, prevent storehouse channel water enters in slopes from causing the immersion to slide strips soft Change.
In practice, along the distance between two neighboring described single slope drainage passage 13 in horizontal direction and along vertical The distance between two neighboring described single slope drainage passage 13 on direction is 2m, is led to setting the multiple single slope drainage Behind road 13, the retaining wall 3 is poured, forms the composite steel-concrete structure of concrete building stones 8.
Preferably, in the above-described embodiments, the bottom of the retaining wall 3 is provided with concrete cushion 10, the steel reinforcement cage 7 In the top of the concrete cushion 10, the steel is stretched into the upper end of the H profile steel 6 after being upward through the concrete cushion 10 In tendon concrete structure, and the H profile steel 6 is located at part and the full weld of steel reinforcement cage 7 in the reinforced concrete structure.It is logical Cross and the concrete cushion 10 is set, it can be ensured that the quality after the perfusion effect of antiskid pile group 1 and retaining wall 3 shaping, Further improve the stability of the retaining wall 3.Here, the thickness of the concrete cushion 10 is 100mm, and is mixed using C20 Solidifying soil padding.
Present invention also offers a kind of construction method of the compound antiskid piling wall retaining structure suitable for reservoir stability, Methods described includes:
Step 1:Antiskid pile group 1 is vertically arranged in the edge of reservoir stability slide strips 12;
Step 2:Banding steel cage 7, and the steel reinforcement cage 7 is fixedly connected with the upper end of the antiskid pile group 1;
Step 3:Formwork, and casting concrete building stones 8 are carried out in the periphery of steel reinforcement cage 7, form retaining wall 3;
Step 4:Waterproof coating layer 9 is coated in the outer surface of the retaining wall 3, completes construction.
The compound antiskid piling wall retaining structure construction method of the present invention, by the way that the sliding pile group build-in is arranged on into storehouse bank In the domatic following antiskid stratum in slope, stability against sliding requirement can be met, using the side of stake top gravity-type concrete retaining wall Formula, the slip casting type antiskid pile group of bottom and pile peripheral earth is formed one, and be coupled with top gravity retaining wall, composition is compound Formula antiskid piling wall, good integrity, three-dimensional effect is optimized from structure makes stress more reasonable.In addition, structure construction is not required to greatly Scale is excavated, and the mechanical execution scope of operation is small, and speed of application is fast, and security is good, and especially emergency repair harnessing project is quicker Reliably.The structure not only good economy performance, stress performance is good, and anti-slide performance is strong.
Preferably, in the above-described embodiments, the step 1 specifically includes:
Step 11:Multiple rotary churning piles 4 are in a row arranged at intervals in the edge of reservoir stability slide strips 12;
Step 12:Set multiple bored concrete piles 2 in a row in the edge of reservoir stability slide strips 12, and the bored concrete pile 2 with In the parallel staggered antiskid stratum for being arranged on the reservoir stability slide strips below 12 of the rotary churning pile 4, and the bored concrete pile 2 Length positioned at the antiskid stratum is more than the length that the rotary churning pile 4 is located at the antiskid stratum.
By setting the bored concrete pile 2 and rotary churning pile 4 in the edge of reservoir stability slide strips 12, can improve well multiple The integral rigidity of foundation soil is closed, in antiskid stratum of the depth embedded base bank hill wash band of bored concrete pile 2 below 12, rotary churning pile 4 stretches into Reservoir stability slide strips ensure the pile quality of bored concrete pile below 12, three-dimensional effect is optimized from structure, makes stress more reasonable.
Here, the rotary churning pile 4 uses substance pipe churning, and the ratio of mud of cement grout is 1:1.
Preferably, in the step 12, multiple bored concrete piles 2 are set to specifically include:
Step 121:Mechanical pipe-following drilling is used in the edge of reservoir stability slide strips 12, is formed and lives 4 with the churning Staggeredly spaced drilling, and be downwardly into each drilling in H profile steel 6 to the antiskid stratum, and the H types Basset on the top of steel 6;
Step 122:Slip casting twice in succession is carried out to each drilling, and the H profile steel 6 is inlayed and is fixed on the storehouse Corresponding to bank hill wash band 12 in the drilling, bored concrete pile 2 is formed.
Formed and drilled by using mechanical pipe-following drilling, and be downwardly into H profile steel 6 in each drilling and resist to described In sliding stratum, and continuous grouting is carried out to each drilling, can cause the H profile steel 6 it is firm be fixed on the storehouse bank In side slope slide strips 12, and larger Thrust of Landslide can be born.Here, slip casting twice in succession, first time slip casting use common pressure grouting, Second of slip casting, grouting pressure 0.3-1.5MPa, the ratio of mud 0.55 are carried out after 3-4 hours.
Preferably, in the above-described embodiments, before the step 2, coagulation also is set in the upper end of the antiskid pile group 1 Soil padding 10 so that the armored concrete knot is stretched into the upper end of the bored concrete pile 2 after being upward through the concrete cushion 10 In structure, then the part full weld that the good steel reinforcement cage 7 of colligation and bored concrete pile 2 are stretched into the reinforced concrete structure.It is to be poured After building concrete building stones 8 so that the upper end of the rotary churning pile 4 is fixedly connected with the bottom of the retaining wall 3.
As shown in figure 3, in practice, tested according to the method described above.In certain reservoir area of Three Gorges reservoir stability, Rock And Soil master To be that stone containing block backfills gravelly sand and completely weathered granite, bank ruin prediction width 59.6-74.6m, jeopardize building on the top of slope thing safety, need Administered, storehouse bank major part treatment range is located at the bottom of 175m reservoir levels line 11.Using above-mentioned compound antiskid piling wall supporting and retaining system knot Structure is as side slope primary abatement means, using H profile steel 6 built in bored concrete pile, the rotary churning pile 4 of setting high pressure, stake top gravity type between stake The mode of concrete retaining wall 3, makes the slip casting type antiskid pile group 1 of bottom and pile peripheral earth forms one, and with top gravity type Retaining wall 3 is coupled, and forms combined type antiskid piling wall supporting file.Rotary churning pile 4 can be well between the secondary high-pressure slip-casting of bored concrete pile 2 and stake The integral rigidity of composite foundation soil is improved, the depth embedded base bank hill wash band of bored concrete pile 2 is below 12 in antiskid stratum, high pressure between stake Rotary churning pile 4 go deep into reservoir stability slide strips 3-5m below 12, three-dimensional effect is optimized from structure makes stress more reasonable.Gravity Formula retaining wall 3 is the compound masonry structure of concrete building stones 8, and being connected by stake top H profile steel 6 with steel reinforcement cage 7 makes retaining wall 3 can The company's of playing beam action, the integral rigidity of compound antiskid piling wall supporting file is improved, and can presses to antiskid pile group 1, resists larger Thrust of Landslide, and the outside coating polymer cement waterproof paint of retaining wall 3, wall body lay single slope drainage hole 13, make retaining wall 3 not Influenceed by the periodically immersion of storehouse water and underground water.
After the completion of construction, the structural representation of the compound antiskid piling wall supporting file of a portion is as shown in figure 3, and prior art Compare, the present embodiment beneficial effect is:Structure construction is not required to excavate on a large scale, and the mechanical execution scope of operation is small, and speed of application is fast, Security is good, and especially emergency repair harnessing project is more fast and reliable.The structure not only good economy performance, stress performance is good, and And anti-slide performance is strong.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (10)

  1. A kind of 1. compound antiskid piling wall retaining structure suitable for reservoir stability, it is characterised in that:Including antiskid pile group (1) and gear Cob wall (3), the antiskid pile group (1) be vertically arranged in the retaining wall (3) and reservoir stability it is domatic between and support the gear Cob wall (3), and the upper end of the antiskid pile group (1) is fixedly connected with the bottom of the retaining wall (3), the antiskid pile group (1) Lower end be mounted in the antiskid stratum of reservoir stability slide strips (12) below.
  2. 2. the compound antiskid piling wall retaining structure according to claim 1 suitable for reservoir stability, it is characterised in that:It is described Antiskid pile group (1) includes multiple bored concrete piles (2) and multiple rotary churning piles (4), the multiple bored concrete pile (2) and multiple rotary churning piles (4) Parallel staggered setting, the upper end of the multiple bored concrete pile (2) extends upwardly into the retaining wall (3) respectively, described more The top of individual rotary churning pile (4) is fixedly connected with the bottom of the retaining wall (3), the multiple bored concrete pile (2) and multiple rotary churning piles (4) lower end is mounted in the antiskid stratum of reservoir stability slide strips (12) below separately down, and the bored concrete pile (2) is located at institute State the length in antiskid stratum and be more than the length that the rotary churning pile (4) is located in the antiskid stratum.
  3. 3. the compound antiskid piling wall retaining structure according to claim 2 suitable for reservoir stability, it is characterised in that:It is described Bored concrete pile (2) is poured and is made by H profile steel (6) and cement mortar (5), and the upper end of the H profile steel (6) anchors into the retaining wall (3) in, the lower end of the H profile steel (6) is inserted into the antiskid stratum of the reservoir stability slide strips (12) below, the cement bonded sand Slurry (5) top be fixedly connected with the bottom of the retaining wall (3), lower end extend downwardly into reservoir stability slide strips (12) below resist In sliding stratum.
  4. 4. the compound antiskid piling wall retaining structure according to claim 3 suitable for reservoir stability, it is characterised in that:It is described Retaining wall (3) is the composite steel-concrete structure made of steel reinforcement cage (7) and concrete building stones (8) pour, and the reinforcing bar Cage (7) is located at the reinforced concrete structure bottom, and the upper end of the H profile steel (6) extends upwardly into the reinforced concrete structure It is interior, and the steel reinforcement cage (7) is fixedly connected with the part that the H profile steel (6) is stretched into the reinforced concrete structure.
  5. 5. the compound antiskid piling wall retaining structure according to claim 4 suitable for reservoir stability, it is characterised in that:It is described Retaining wall (3) outer surface is coated with waterproof coating layer (9).
  6. 6. the compound antiskid piling wall retaining structure according to claim 5 suitable for reservoir stability, it is characterised in that:It is described Retaining wall (3) is provided with multiple single slope drainage passages (13), and the multiple single slope drainage passage (13) is along the retaining wall (3) Thickness direction array distribution and run through the retaining wall (3), the single slope drainage passage (13) sets with horizontal direction in angle Put, and close Ku Qu one end of the single slope drainage passage (13) is less than close to water source one end in reservoir stability.
  7. 7. the compound antiskid piling wall retaining structure according to claim 6 suitable for reservoir stability, it is characterised in that:It is described The bottom of retaining wall (3) is provided with concrete cushion (10), and the steel reinforcement cage (7) is located at the top of the concrete cushion (10), The upper end of the H profile steel (6) is stretched into the reinforced concrete structure after being upward through the concrete cushion (10), and described H profile steel (6) is located at part and the steel reinforcement cage (7) full weld in the reinforced concrete structure.
  8. 8. a kind of construction method for the compound antiskid piling wall retaining structure for being applied to reservoir stability as claimed in claim 7, it is special Sign is that methods described includes:
    Step 1:In reservoir stability slide strips (12), edge is vertically arranged antiskid pile group (1);
    Step 2:Banding steel cage (7), and the steel reinforcement cage (7) is fixedly connected with the upper end of the antiskid pile group (1);
    Step 3:Formwork, and casting concrete building stones (8) are carried out in the steel reinforcement cage (7) periphery, form retaining wall (3);
    Step 4:In the outer surface of the retaining wall (3) coating waterproof coating layer (9), construction is completed.
  9. 9. the compound antiskid piling wall retaining structure construction method according to claim 8 suitable for reservoir stability, its feature It is:The step 1 specifically includes:
    Step 11:In reservoir stability slide strips (12), edge is in a row arranged at intervals multiple rotary churning piles (4);
    Step 12:Multiple bored concrete piles (2), and the bored concrete pile (2) are set in a row in reservoir stability slide strips (12) edge It is parallel with the rotary churning pile (4) it is staggered be arranged in the antiskid stratum of the reservoir stability slide strips (12) below, it is and described Bored concrete pile (2) is located at the length that the length in the antiskid stratum is located at more than the rotary churning pile (4) in the antiskid stratum.
  10. 10. the compound antiskid piling wall retaining structure construction method according to claim 9 suitable for reservoir stability, its feature It is, in the step 12, sets multiple bored concrete piles (2) to specifically include:
    Step 121:Mechanical pipe-following drilling is used in reservoir stability slide strips (12) edge, is formed and lives (4) with the churning Staggeredly spaced drilling, and be downwardly into each drilling in H profile steel (6) to the antiskid stratum, and the H Basset on the top of shaped steel (6);
    Step 122:Slip casting twice in succession is carried out to each drilling, and the H profile steel (6) is mounted in the reservoir stability Corresponding to slide strips (12) in the drilling, bored concrete pile (2) is formed.
CN201710862122.5A 2017-09-21 2017-09-21 A kind of compound antiskid piling wall retaining structure and construction method suitable for reservoir stability Pending CN107503362A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108729526A (en) * 2018-06-05 2018-11-02 昆明理工大学 The construction method of longitudinal drainage canal is built on a kind of rickle
CN112343081A (en) * 2020-10-30 2021-02-09 北京中地华安地质勘查有限公司 Pipeline protection method and structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108729526A (en) * 2018-06-05 2018-11-02 昆明理工大学 The construction method of longitudinal drainage canal is built on a kind of rickle
CN112343081A (en) * 2020-10-30 2021-02-09 北京中地华安地质勘查有限公司 Pipeline protection method and structure

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