CN206902740U - A kind of retaining structure reinforced for weak soil cutting - Google Patents
A kind of retaining structure reinforced for weak soil cutting Download PDFInfo
- Publication number
- CN206902740U CN206902740U CN201720763696.2U CN201720763696U CN206902740U CN 206902740 U CN206902740 U CN 206902740U CN 201720763696 U CN201720763696 U CN 201720763696U CN 206902740 U CN206902740 U CN 206902740U
- Authority
- CN
- China
- Prior art keywords
- slope
- retaining structure
- reinforced
- lattice guest
- barricade
- 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.)
- Active
Links
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a kind of retaining structure reinforced for weak soil cutting.It includes cut slope slopes, soil cement reinforcing body is set in the cut slope slopes, the soil cement reinforcing body bottom is extended in hard stratum, cut slope slopes outer lower portion excavation pit, loaded filter and Ge Bin barricades are set in foundation ditch, and the loaded filter is located on the inside of foundation ditch, lattice guest barricade fitting loaded filter lateral surface, respectively with being flushed at the top and bottom of loaded filter at the top and bottom of the lattice guest barricade, the lattice guest barricade bottom from top to bottom sets gradually screed-coat and substrate bed course.The utility model has the advantages that construction Portable safety, compatibility of deformation ability is strong, draining is unobstructed, good with surrounding enviroment coordination, economic benefit.
Description
Technical field
The utility model belongs to Geotechnical Engineering reinforcing side slope technique field, and in particular to a kind of to be used for what weak soil cutting was reinforced
Retaining structure.
Background technology
The construction fields such as railway engineering, underground engineering and base pit engineering often meet weak soil cut slope, and weak soil cutting location is past
High toward level of ground water, the soil body has the features such as high saturation, stratum are weak, and self-stable ability difference is easily slided, traditional weak soil cutting
Reinforce the scheme for typically using rigid retaining structure.
Conventional predominantly Gravity Retaining Wall, peg board formula barricade and U-type groove etc. the three types of rigid retaining structure.
Had the following disadvantages using Gravity Retaining Wall reinforcing soft soil cutting：(1) rigid wall adaptive deformation ability, after wall
Thrust is big, wall section is big, and Gravity Retaining Wall can not be used when thrust is larger；(2) Retaining wall process (containing excavation of foundation pit, is stood
Mould, wall body pour, solidifies maintenance etc.) more, time length, the easy unstability of soft soil slope after wall；(3) excavation of foundation pit depth is big, substrate is easy
Ponding softens, and aggravates slope instability hidden danger；(4) wall body concrete permeability is poor, the white-out that seeped water after wall is difficult, and ponding produces after wall
Water pressure is unfavorable for that barricade is stable, is also unfavorable for raising of soft soil layer self-strength etc. after wall.
Major defect be present using peg board formula Retaining Wall Reinforcement weak soil cutting：(1) stratum is weak, lateral allowable stress and ground
Drag is small, and required pile body section and stake are grown up, and engineering cost is high；(2) Under Pile week stratum is poor, excavation is difficult, applies
Long between man-hour, the easy shrinkage cavity of foundation ditch, cunning of collapsing even cause soft soil slope unstable failure after wall in work progress；(3) foundation pile construction labor
Rotating ring border is poor, risk is high, hidden danger is big, need to take more additional reinforcement (such as solidification of stake week, anchor pole pre-reinforcement) and safeguard protection
Measure.
U-type groove is a kind of monolithic reinforced-concrete structures applied to the soft foundation of underground water development, under being used for
Wear in Grade Separation Project, the effect of preferably closing underground water can be played, but it is used for weak soil cutting and reinforces the shortcomings that existing：(1)
More underground water applied to the symmetrical engineering in both sides of U-typed groove are closed, and can not play its technical advantage during unilateral stress；(2) tie
Configuration formula is more complicated, and construction fine degree is high, and quality is difficult to control；(3) Retaining wall process (containing excavation of foundation pit, formwork erection frame muscle,
Wall body one-piece casting, solidification maintenance etc.) more, time length, the easy unstability of soft soil slope after wall；(4) engineering cost is high, investment is big.
Utility model content
The purpose of this utility model is exactly insufficient existing for above-mentioned background technology in order to solve, there is provided the convenient peace of one kind construction
Entirely, the retaining structure for being used for weak soil cutting and reinforcing that compatibility of deformation ability is strong, draining is unobstructed.
The technical solution adopted in the utility model is：A kind of retaining structure reinforced for weak soil cutting, including cutting side
Slope slopes, the cut slope slopes are interior to set soil cement reinforcing body, and the soil cement reinforcing body bottom extends to cutting substrate
Hereinafter, cut slope slopes outer lower portion excavation pit, foundation ditch is interior to set loaded filter and Ge Bin barricades, the loaded filter to be located at base
Hole inner side, lattice guest barricade fitting loaded filter lateral surface, at the top and bottom of the lattice guest barricade respectively with the top and bottom of loaded filter
Flush, the lattice guest barricade bottom from top to bottom sets gradually screed-coat and substrate bed course.
Further, the soil cement reinforcing body includes the Soil-cement that more interval constructions enter in soft soil slope
Stake, square or triangular arrangement between more cement mixing methods, the cement mixing method stake footpath are 0.5-0.6m, stake
Spacing is 1.0-1.4m, and cement mixing method bottom is extended to below cutting substrate.
Further, the cut slope slopes ratio of slope is 1:1.5-1:1.75, foundation ditch ratio of slope is 1:0.5.
Further, the wall chest ratio of slope of the lattice guest barricade is 1:0.5-1:0.75, the wall back slope rate of lattice guest's barricade is 1:
0.25。
Further, the lattice guest barricade is built by laying bricks or stones and formed by filling cobble or shiver stone in gabion.
Further, the loaded filter is that sand presss from both sides gravel layer, and loaded filter thickness is 0.3-0.6m.
Further, the screed-coat is concrete flat slab, and screed-coat thickness is 0.1-0.5m.
Further, the substrate bed course is blotter, thickness 0.3-0.6m.
The utility model reinforces cement mixing method and lattice guest barricade organically combines, soil cement reinforcing body and Ge Bin barricades
The active force area of retaining structure and passive force area are respectively constituted, compensate for the existing reinforcing side based on rigid retaining engineering
The deficiency of the passive force modes of case, weak soil cut slope Thrust characteristic distributions are adapted to, have efficiently reduced toe supporting and retaining system
The cross-sectional volume of structure, reduce retaining engineering expense；The retaining structure is with construction Portable safety, compatibility of deformation ability is strong, arranges
Water is unobstructed, with the advantages that surrounding enviroment are coordinated, economic benefit is good.
Cement mixing method is a kind of common reinforced soft soil ground measure, technology maturation, simple to operate, cost；
Cement mixing method reinforcing soft soil slope soil is first used, can make the soil body and curing agent that physical-chemical reaction occur, formation has
The soil cement reinforcing body of certain globality and some strength, improves soft soil slope itself shearing strength, reduces sliding force；Water
Soil mixing pile construction is quick, performs rear cutting excavation scope of operation condition and is greatly improved, will not trigger slope in digging process
Body slides.
Lattice guest barricade has very strong deformation by filling cobblestone or gravelly point supporting system in gabion
The coordination ability, adapt to the yielding feature of weak soil cutting；Wall good penetrability, be advantageous to weak soil cut slope underground water and ooze out, arrange
Water is unobstructed, avoids ponding problem after wall.Filling building stones can gather materials on the spot in lattice guest's barricade gabion, and engineering cost is less than tradition
Mortar flag stone or concrete rigid barricade or U-type groove retaining structure, remarkable in economical benefits.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of the utility model lattice guest's barricade.
In figure：1- cut slopes；2- soil cement reinforcing bodies；2.1- cement mixing method；3- lattice guest's barricades；3.1- gabion net
Case；4- loaded filters；5- screed-coats；6- substrate bed courses；7- foundation ditches；8- Soft Soil Layers；9- hard stratums；10- cutting substrates.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, is easy to be well understood
The utility model, but they do not form to the utility model and limited.
As shown in Figure 1 and Figure 2, the utility model includes cut slope slopes 1, slopes ratio of slope 1：H is 1:1.5-1:1.75
The upper strata of weak soil cut slope soil layer is generally Soft Soil Layer 8 (soil property is generally muck soil), and lower floor is the (soil property one of hard stratum 9
As for completely decomposed layer or hard plastic soil layer).Soil cement reinforcing body 2, the soil cement reinforcing body are set in the cut slope slopes 1
2 bottoms are extended in hard stratum 9, the outer lower portion excavation pit 7 of cut slope slopes 2, the ratio of slope 1 of foundation ditch 7：F is 1:0.5, foundation ditch 7
Interior setting loaded filter 4 and Ge Bin barricades 3, the loaded filter 4 are located at the inner side of foundation ditch 7, and lattice guest barricade 3 is bonded the lateral surface of loaded filter 4,
The top and bottom of lattice guest barricade 3 flush with the top and bottom of loaded filter 4 respectively, and the bottom of lattice guest barricade 3 extends to cutting base
Below bottom 10, the bottom of lattice guest barricade 3 from top to bottom sets gradually screed-coat 5 and substrate bed course 6.
In such scheme, soil cement reinforcing body 2 includes the cement mixing method that more interval constructions enter in soft soil slope
2.1, square or triangular arrangement between more cement mixing methods 2.1, the cement mixing method stake footpath is 0.5-
0.6m, stake spacing are 1.0-1.4m, and cement mixing method bottom is extended in hard stratum.Cement mixing method is opened in weak soil cutting
Performed before digging, foundation soil strength and deformation modulus can be improved, strengthen the self stability of soft soil layer, stake end stretch enters hard stratum 9
In.Cement mixing method pile 28 days, qualified rear progress Cutting Excavation of Expressway work, then carries out applying for lattice guest's barricade after testing
Work.
In such scheme, lattice guest barricade 3 by different model gabion 3.1 in filling cobble or shiver stone build by laying bricks or stones and
Into using convenient lattice guest's product type according to the sectional dimension of design requirement；By misplacing, assembling lattice guest cage meets design
It is required that chest, back slope rate, the wall chest ratio of slope 1 of lattice guest's barricade：M is 1:0.5-1:0.75, the wall back slope rate 1 of lattice guest's barricade：N is 1:
0.25.Lattice guest barricade is built by laying bricks or stones and formed by the built-in cobble of gabion, shiver stone,
Lattice guest product often uses model G2 × 1 × 1GF Ge Bin, long 2 meters, wide 1 meter, and high 1 meter, inside is adopted at interval of 1 meter
Independent unit is divided into diaphragm plate；Also can use G1.5 × 1 × 1GF or G2 × 1 × 1GF or G3 × 1 × 1GF or G4 × 1 ×
1GF, it is applied in combination according to job site situation.Grid nominal size is 8 × 10cm, and wire side mechanical strength is 50kN/m, steel wire
Tensile strength should be between 350~500N/mm2, elongation percentage cannot be below 10%, meet EN10223-3 standards；Steel wire diameter
For 2.70mm, side end steel wire diameter is 3.40mm, and strand side steel wire diameter is 2.20mm；Steel wire acceptable tolerance is 0.06mm.
The thick plating Gao Erfan (%5 aluminum-zinc alloys and a small amount of rare earth element) of steel wire, minimum plating Gao Erfan amounts are 245g/m2,
The adhesion of plating Gao Erfan layers should reach following requirements：When steel wire is around mandrel 6 weeks with 4 times of steel wire diameters, it will not be shelled
Fall or ftracture, meet EN10223-3 standards.Gabion net piece mesh must be uniform, must not torsional deformation, mesh aperture deviation should be small
5% in design aperture.
Filler must select hard, dysgeogenous ragstone in gabion, it is desirable to which building stones quality is hard, by force
Grade MU30 is spent, proportion is not less than 2.5t/m3, water not easy disintegrating and hydrolysis is met, weathering resistance, diameter control is in 75~150mm models
Enclose；Must be few corner angle when using shiver stone, durable, non-breakable.Allow the particle diameter no more than 15%<100mm, but its
The exposed face of gabion net lattice must not be used for, voidage to be no more than 30%.The precision index of gabion formation level construction survey
It should meet claimed below：Plan-position allowable error ± 40mm；Elevation allowable error ± 30mm；Domatic irregularity degree it is relatively high
Spend poor allowed band ± 30mm.Net cage layer crisscross, upper and lower should be coupled with interlayer masonry, forbid " straight joint " occur；Every layer of net
Case group all should suitably place " fourth " word casing；Masonry exposed face is answered smooth attractive in appearance.
Gabion assembling need to meet claimed below：1. spacer web and body answer it is in 90 ° intersect, banded formation rectangle
Net cage group or net cage；Binding wire must be the steel wire with netting twine same material, and every one of colligation must be doublet cord and wring.2. structure
Into net cage group or the various mesh sheet junction colligation roads number of net cage, and should meet claimed below：The friendship everywhere of spacer web and body
Each colligation in angle is together；Spacer web and body junction at interval of 25cm colligations together with；Adjacent wire between spacer web and body, must
It must be coupled using combination line, i.e., connect with binding wire-hole around-circle-hole perforates twisted connection in the shape of a spiral around two circles.3. between net cage group
Connection colligation, it should meet the following requirements：Each colligation in corner up and down of adjacent net cage group is together；The wire up and down of adjacent net cage group or
Broken line, it is necessary at interval of 25cm colligations together；The mesh sheet faying face of adjacent net cage group is then at every square metre of colligation 2, it is necessary to by under
Square net cage colligation in the lump, in the hope of being connected.4. the mesh sheet of exposed position, lacing wire is set after 1/3 height that should be rockfilled in each case
Line, inwardly it is strained and fixed in splayed.
Inserts construction should meet claimed below：1. the specification quality of gabion inner filling material, it is necessary to which meeting design will
Ask.2. equably must feed intake into each cell of same layer simultaneously, forbid disposably to throw single lattice net cage completely；In filler construction,
Every layer of Raising directly should be controlled to feed intake and be advisable in below 30cm, four layers of general one meter of high net cage point.3. top surface filling building stones are preferably fitted
When being higher by net cage, and must closely knit, gap preferably clogged with small crushed stone.Packing material unit weight should be not less than 1.70 tons/cubic metre.
4. exposed filling building stones, surface should build leveling manually or mechanically to build, and should mutually be overlapped between building stones.
Net cage capping construction should meet claimed below：1. capping must be carried out on the basis of top building stones block base is smooth.
It must first determine using capping is clamping after often holding neighborhood of nodes, then be subject to colligation.2. capping and net cage frame intersecting lens, should often be separated by
25cm colligations are together.
In such scheme, loaded filter 4 primarily serves insulation blocking, anti-filter drainage, and generally use sand folder boulder and cobble is thick
Degree is generally 0.3-0.6m.
In such scheme, screed-coat 5 and substrate bed course 6 primarily serve and improve foundation bearing capacity and compatible deformation effect, position
In lattice guest's barricade substrate.Screed-coat is concrete flat slab, is formed using concrete cast-in-situ, and screed-coat thickness is generally 0.1-
0.5m.Substrate bed course typically uses blotter, thickness 0.3-0.6m, and compaction quality should meet K30>=120MPa/m, hole
Rate≤32%.
For enhancing Green Protection, enhancing landscape effect, after the shaping of lattice guest barricade, mucuna can be planted in wall top face platform
And winter jasmine, the wall front platform plantation shrub such as Boston ivy and cypress；Wall chest face and faulting of slab ends can use CS high order granule composite fibre methods
Quick vegetation technique is afforested.
When retaining structure is constructed, cement mixing method performs before weak soil cutting excavation, after pile is no less than 28 days, through inspection
Survey qualified rear progress Cutting Excavation of Expressway work.After Cutting Excavation of Expressway to lattice guest's Retaining wall absolute altitude, lattice guest's barricade is carried out
Construction.After the completion of lattice guest's barricade wall construction, implement loaded filter, loaded filter and wall the back of the body excavate it is domatic between space can use infiltration soil
Backfill closely knit.After the shaping of lattice guest barricade, greening measure is taken.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (8)
- A kind of 1. retaining structure reinforced for weak soil cutting, it is characterised in that：Including cut slope slopes (1), the cutting Soil cement reinforcing body (2) is set in side slope slopes (1), and soil cement reinforcing body (2) bottom is extended in hard stratum, cutting side Slope slopes (1) outer lower portion excavation pit (7), foundation ditch is interior to set loaded filter (4) and lattice guest barricade (3), loaded filter (4) position On the inside of the foundation ditch, lattice guest barricade (3) fitting loaded filter (4) lateral surface, at the top and bottom of the lattice guest barricade (3) respectively with anti-filter Flushed at the top and bottom of layer (4), lattice guest barricade (3) bottom from top to bottom sets gradually screed-coat (5) and substrate bed course (6)。
- 2. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The soil cement is reinforced Body (2) includes the cement mixing method (2.1) that more interval constructions enter in soft soil slope, is between more cement mixing methods Square or triangular arrangement, the cement mixing method stake footpath are 0.5-0.6m, and stake spacing is 1.0-1.4m, Soil-cement Stake bottom is extended in hard stratum.
- 3. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The cut slope slope Body (1) ratio of slope is 1:1.5-1:1.75, foundation ditch ratio of slope is 1:0.5.
- 4. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The lattice guest barricade (3) wall chest ratio of slope is 1:0.5-1:0.75, the wall back slope rate of lattice guest's barricade is 1:0.25.
- 5. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The lattice guest barricade (3) built by laying bricks or stones and formed by filling cobble or shiver stone in gabion (3.1).
- 6. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The loaded filter (4) Gravel layer is pressed from both sides for sand, loaded filter thickness is 0.3-0.6m.
- 7. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The screed-coat (5) For concrete flat slab, screed-coat thickness is 0.1-0.5m.
- 8. the retaining structure according to claim 1 reinforced for weak soil cutting, it is characterised in that：The substrate bed course (6) it is blotter, substrate cushion thickness is 0.3-0.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720763696.2U CN206902740U (en) | 2017-06-27 | 2017-06-27 | A kind of retaining structure reinforced for weak soil cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720763696.2U CN206902740U (en) | 2017-06-27 | 2017-06-27 | A kind of retaining structure reinforced for weak soil cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206902740U true CN206902740U (en) | 2018-01-19 |
Family
ID=61292115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720763696.2U Active CN206902740U (en) | 2017-06-27 | 2017-06-27 | A kind of retaining structure reinforced for weak soil cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206902740U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729410A (en) * | 2018-06-06 | 2018-11-02 | 清华大学 | A kind of green ecological is interior to reinforce shore protection, shield precipice method |
| CN111259478A (en) * | 2020-01-20 | 2020-06-09 | 中铁二院工程集团有限责任公司 | Method for inhibiting deformation of existing cutting gravity type retaining wall |
| CN113774928A (en) * | 2021-08-16 | 2021-12-10 | 中铁三局集团有限公司 | Composite pile type retaining structure suitable for different height roadbed slopes of special areas and road sections |
-
2017
- 2017-06-27 CN CN201720763696.2U patent/CN206902740U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729410A (en) * | 2018-06-06 | 2018-11-02 | 清华大学 | A kind of green ecological is interior to reinforce shore protection, shield precipice method |
| CN111259478A (en) * | 2020-01-20 | 2020-06-09 | 中铁二院工程集团有限责任公司 | Method for inhibiting deformation of existing cutting gravity type retaining wall |
| CN113774928A (en) * | 2021-08-16 | 2021-12-10 | 中铁三局集团有限公司 | Composite pile type retaining structure suitable for different height roadbed slopes of special areas and road sections |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109736346B (en) | Steel anchor pipe reinforced weathered rock stratum reinforced weighing type retaining wall structure and construction method | |
| CN203320549U (en) | Reinforced gabion retaining wall of high slope in airport engineering | |
| CN105586984A (en) | Fast-assembly cast-in-place type reinforced soil retaining wall and construction method thereof | |
| CN206902740U (en) | A kind of retaining structure reinforced for weak soil cutting | |
| CN205116214U (en) | Composite foundation check guest retaining wall structure | |
| CN110004991A (en) | Underground structure anti-floating system and construction method based on raised type tangs plate | |
| CN111576454A (en) | Combined protective structure for side slope retaining wall and steel pipe pile and construction method thereof | |
| CN205399474U (en) | Assemble cast -in -place formula reinforced earth retaining wall fast | |
| CN113250240A (en) | Combined side slope protection structure and process of layered net type gabion and concrete | |
| CN114045808A (en) | Deep soft soil foundation reinforcement treatment structure formed by combining concrete lattice walls and discrete material piles and construction method | |
| CN104480956B (en) | A kind of minor diameter mold-bagged concrete pile composite foundation | |
| CN114182745B (en) | Ecological slope protection roadbed of high-liquid limit soil ecological retaining wall and construction method | |
| CN103334450B (en) | Construction method of pile precast slab retaining wall with drainage ditch | |
| CN111622234B (en) | Unloading type thin-wall box-type retaining wall supported by obliquely and vertically combined steel pipe pile and construction process | |
| CN109653242A (en) | Composite foundation reinforcement arch box type barrier wall structure and construction method | |
| CN106567365B (en) | Earth and rockfill dam longitudinal reinforcement construction method | |
| CN108589747A (en) | EPS light road banks are widened in conjunction with plant biological bag protective slope structure and construction method | |
| CN209066479U (en) | Assembled green ecological reinforced earth retaining wall | |
| CN208594531U (en) | A kind of large scale prefabricated armored concrete ecological slope protection or shore protection component | |
| CN203905032U (en) | Large pond cutting protection structure | |
| CN110172988A (en) | A kind of piling formula composite concrete placement ground and its construction method | |
| CN212925885U (en) | Combined concrete upright post and foundation for isolated gate | |
| CN212956576U (en) | Confined space high fill roadbed side slope foam concrete's reinforced structure | |
| CN211340742U (en) | Anti-settlement foundation | |
| CN210315650U (en) | Anchor rod reinforced composite retaining wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |