CN103806453A - Reinforced soil structure and slide-resistant pile combined composite retaining structure - Google Patents
Reinforced soil structure and slide-resistant pile combined composite retaining structure Download PDFInfo
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- CN103806453A CN103806453A CN201310734532.3A CN201310734532A CN103806453A CN 103806453 A CN103806453 A CN 103806453A CN 201310734532 A CN201310734532 A CN 201310734532A CN 103806453 A CN103806453 A CN 103806453A
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Abstract
The invention relates to a reinforced soil structure and slide-resistant pile combined composite retaining structure. In the composite retaining structure, a slide-resistant pile supports upper earth rock and rear soil, wherein the upper earth rock is of a reinforced soil structure. The reinforced soil structure enables upper soil to be integrated and solidified into one compact continuous flexible body to protect a slope and guarantee the stability of the soil. The slide-resistant pile is located on the bottom wall toe or the slope toe of the reinforced soil structure to prevent the upper reinforced soil structure and the rear soil from sliding down. The composite retaining structure can solve problems which can not be solved by some single retaining structures and forms, and is good in anti-seismic property and obvious in engineering effect.
Description
Technical field
The present invention relates to the compound retaining structure of a kind of earth structure and antislide pile combination.
Background technology
Along with expanding economy, the field of engineering construction and region and in continuous expansion, natural environment and the geological conditions of engineering construction also become increasingly complex, in project with a varied topography at some, engineering has specific (special) requirements, there will be some high embankment engineerings, only the retaining structure of voucher one and measure can not meet the requirement of engineering, the method that must adopt multiple retaining structure or measure combination, while especially building engineering in mountain area, this situation runs into more.
In the time that engineering is built in mountain area; often can run into high embankment on slope or the problem of landslide control; due to the restriction of various external conditions or the consideration of engineering safety; often embankment side slope can not be carried out to natural discharging slope stacking; therefore must prop up gear to it reinforces; and the body that will prevent from banketing glides along slope, traditional, single support reinforcement method of banketing, due to factors such as construction costs, difficulty of construction and place restrictions, is difficult to solve problems simultaneously.
Relatively other forms of traditional retaining structure, earth structure has simple in structure, easy construction, engineering adaptability is strong, relatively low to ground requirement for bearing capacity, cost is lower, the features such as anti-seismic performance is good, geo-grid has distinctive mesh-structured simultaneously, build-in and interlocking with soil particle are increased, to banket and be strapped in more closely together, form more stable overall flexibility structure, shortcoming is that single-stage wall height should not exceed 10m, construction wrong easily causes being out of shape excessive, should not be applied in soaking district etc., it is a kind of method that high embankment comparison between projects is conventional of processing at present.But the earth structure of geo-grid and the common composition that bankets banketing within the scope of only can fixed reinforcing body, make it to form entirety, guarantee the stable of reinforced earth body self, structure does not have opposing itself and banket along the ability of slope entirety downslide in rear portion, for avoiding reinforcing body and the reinforcing body rear portion soil body to glide, adopt in reinforcing body bottom antislide pile be one simply, processing method effectively.
Summary of the invention
For above-mentioned deficiency, the invention provides the compound retaining structure of a kind of earth structure and antislide pile combination, in described compound retaining structure, the top embankment that antislide pile is kept out is to banket in earth structure body and rear portion thereof, described earth structure, interlock by layered rolling, grid and soil body particle is fixed, make the soil body soil particle within the scope of reinforced earth more closely knit, compact, whole reinforcing body forms continuous, a closely knit overall structure, protective slope body, guarantees the stability that this part is banketed; Bottom toe of wall or toe place that described antislide pile is positioned at earth structure, keep out the downslide of banketing in top earth structure and rear portion thereof.
Described earth structure can be divided into reinforced earth side slope and two kinds of form of structure of reinforced earth bulkhead according to its domatic gradient.
The every layers of reinforcement material of described earth structure is level and lays, and banketing between upper and lower two layers of reinforcement material should be shakeout and layered rolling, compacted depth 0.2-0.3m, and degree of compaction should meet design requirement.
Described reinforced earth edge slope structure, the domatic gradient is generally 30-70 °, and described reinforced earth edge slope structure preferably adopts packaging type slope structure, is domaticly wrapped to form for reinforcement material layering.
Described reinforced earth retaining wall structure, the metope gradient is 70-90 °, can be divided into and have panel barricade and without two kinds of form of structure of panel reinforced earth bulkhead according to metope form.
The described panel type reinforced earth bulkhead that has is preferably the modular reinforced earth bulkhead of concrete modular, the wall top of described modular reinforced earth retaining wall structure is provided with cap stone, described cap stone adopts monolithic reinforced concrete structure, its thickness must not be less than 0.4m, width must not be less than 0.6m, and cornice width is 0.1m.
The described metope without panel reinforced earth bulkhead is the barricade of muscle material packaging type structure, is wrapped to form by reinforcement material layering.
The metope of described modular reinforced earth bulkhead is that preset concrete modular is built by laying bricks or stones, the gradient outside wall is set on described metope and is not less than 4% spilled water hole, press up and down every 2-3m interlaced arrangement, the easy ponding place of the broken line wall back of the body must arrange spilled water hole, described spilled water hole adopts tube type material, is preset in concrete modular.
The described spilled water hole influent side of described modular reinforced earth bulkhead is provided with non-graded broken stone or sand folder cobble loaded filter, and thickness is greater than 0.3m, the loaded filter that the wall back of the body is expansive soil, and thickness is not less than 0.5m; Described loaded filter top arranges the not seepage material sealing that 0.3-0.5m is thick, in the water inlet bottom in the minimum excretion water hole near ground, water barrier should be set.
Described barricade can be made as Retaining Walls, and table top at different levels should be established the draining horizontal wall inscription that is not less than 2%, and is not less than the C15 concrete slab protection of 0.15m with thickness.
Described modular barricade, is provided with shrinkage joint along wall length every 10-20m or with other building joints, is provided with settlement joint in bottom variation place of substrate; Described shrinkage joint and settlement joint can merge setting, stitch wide employing 2-3cm, in seam, along inside and outside, top three limit filling pitch hemp cut or the pitch planks of wall, fill in the degree of depth and must not be less than 0.15m.
In the time that top earth structure is reinforced earth retaining wall structure, described antislide pile position is arranged on the toe of wall position of described reinforced earth bulkhead; In the time that top earth structure is reinforced earth edge slope structure, described antislide pile position is arranged on the toe position of described reinforced earth side slope.
Described reinforced earth edge slope structure, reinforced earth side slope adopts the slope structure of packaging type more, also can adopt concrete structure or other forms to carry out slope protection.
The slope structure of described packaging type, domatic for reinforcement material layering is wrapped to form, general gunnysack, woven bag or the ecology bag code of filling soil sealing of adopting of domatic surface layer built as design grade.
The compound retaining structure of earth structure of the present invention and antislide pile combination, in conjunction with antislide pile and earth structure features and advantage, makes up shortcoming mutually, gives full play to advantage separately, and hard and soft combination is applicable to high embankment and props up gear or landslide control.It is stable that this composite construction can make top banket, form an entirety, receive the sty gradient, land used at the bottom of saving slope, increases top site area, can stop again whole slope body to glide, guarantee the stability of high embankment structure, solve some single retaining structures and the insurmountable difficult problem of form, more important point is exactly because reinforcing body structure itself belongs to flexible structure, its characteristic has determined that this composite construction has good anti-seismic performance, and engineering effort is remarkable.
Accompanying drawing explanation
Fig. 1 is that superstructure of the present invention is the composite support gear structural representation of reinforced earth bulkhead form.
Fig. 2 is that superstructure of the present invention is the composite support gear structural representation of reinforced earth side slope type.
In figure: 1-cast-in-situ steel reinforced concrete bears down on one, the preset concrete modular of 2-, reserved spilled water hole in 3-module, non-graded broken stone drainage layer after 4-metope, the concrete confining bed at 5-step place, 6-antislide pile, 7-grit hardcore bed, 8-backfill, 9-reinforcing body structure.
The specific embodiment
In the composite construction of earth structure of the present invention and antislide pile combination, the top embankment that described antislide pile is kept out is to banket in earth structure and rear portion thereof, and earth structure can be divided into reinforced earth side slope and two kinds of form of structure of reinforced earth bulkhead according to its domatic gradient.Bottom toe of wall or toe place that described antislide pile is positioned at earth structure, keep out the downslide of banketing in top earth structure and rear portion thereof.In the time that top earth structure is reinforced earth retaining wall structure, described antislide pile position is arranged on the toe of wall position of described reinforced earth bulkhead.In the time that top earth structure is reinforced earth edge slope structure, described antislide pile position is arranged on the toe position of described reinforced earth side slope.In the time that top earth structure is reinforced earth retaining wall structure, described antislide pile position is arranged on the toe of wall position of described reinforced earth bulkhead; In the time that top earth structure is reinforced earth edge slope structure, described antislide pile position is arranged on the toe position of described reinforced earth side slope.Described earth structure by top banket integration, fixed be a relatively closely knit continuous flexible body, protective slope body, guarantees the stability that this part is banketed.The every layers of reinforcement material of described earth structure is level and lays, and banketing between upper and lower two layers of reinforcement material should be shakeout and layered rolling, compacted depth 0.2-0.3m, and degree of compaction should meet design requirement.
Described earth structure can be divided into reinforced earth side slope and two kinds of form of structure of reinforced earth bulkhead according to its domatic gradient.Described reinforced earth edge slope structure, the domatic gradient is generally 30-70 °, and described reinforced earth edge slope structure preferably adopts packaging type slope structure, is domaticly wrapped to form for reinforcement material layering.Described reinforced earth retaining wall structure, the metope gradient is 70-90 °, can be divided into and have panel barricade and without two kinds of form of structure of panel reinforced earth bulkhead according to metope form.
The described panel type reinforced earth bulkhead that has is preferably the modular reinforced earth bulkhead of concrete modular, the wall top of described modular reinforced earth retaining wall structure is provided with cap stone, described cap stone adopts monolithic reinforced concrete structure, its thickness must not be less than 0.4m, width must not be less than 0.6m, and cornice width is 0.1m.The metope of described modular reinforced earth bulkhead is that preset concrete modular is built by laying bricks or stones, the gradient outside wall is set on described metope and is not less than 4% spilled water hole, press up and down every 2-3m interlaced arrangement, the easy ponding place of the broken line wall back of the body must arrange spilled water hole, described spilled water hole adopts tube type material, is preset in concrete modular.The described spilled water hole influent side of described modular reinforced earth bulkhead is provided with non-graded broken stone or sand folder cobble loaded filter, and thickness is greater than 0.3m, the loaded filter that the wall back of the body is expansive soil, and thickness is not less than 0.5m; Described loaded filter top arranges the not seepage material sealing that 0.3-0.5m is thick, in the water inlet bottom in the minimum excretion water hole near ground, water barrier should be set.
Described has panel type reinforced earth bulkhead excellent in the height of barricade, and described barricade can be made as Retaining Walls, and table top at different levels should be established the draining horizontal wall inscription that is not less than 2%, and is not less than the C15 concrete slab protection of 0.15m with thickness.The described metope without panel reinforced earth bulkhead is the barricade of muscle material packaging type structure, is wrapped to form by reinforcement material layering.
Described modular barricade, is provided with shrinkage joint along wall length every 10-20m or with other building joints, is provided with settlement joint in bottom variation place of substrate; Described shrinkage joint and settlement joint can merge setting, stitch wide employing 2-3cm, in seam, along inside and outside, top three limit filling pitch hemp cut or the pitch planks of wall, fill in the degree of depth and must not be less than 0.15m.
Described reinforced earth edge slope structure, reinforced earth side slope adopts the slope structure of packaging type more, also can adopt concrete structure or other forms to carry out slope protection.The slope structure of described packaging type, domatic for reinforcement material layering is wrapped to form, general gunnysack, woven bag or the ecology bag code of filling soil sealing of adopting of domatic surface layer built as design grade.
Described antislide pile, with its rigidity and anti-shear ability, stops the downslide of banketing in top.Banket as earth structure in top, great changes will take place for soil mass property, banket more firm, soil arching effect more obviously and strengthen, can more effectively stop bankets extrudes, slides between stake, therefore can increase accordingly pile spacing, thereby has reduced the quantity of stake, save construction costs, the reduction of erection time.Earth structure is simple in structure, easy construction, and the required engineering equipment of constructing, personnel are less, and structure is flexible structure, and structural integrity is good, has good adaptive deformation ability, and anti-seismic performance is good, but lacks certain rigidity, yielding.Antislide pile belongs to rigid structures, is out of shape littlely, and shock resistance is poor, and difficulty of construction is larger.Two kinds of hard and soft combinations of structure, can give full play to advantage separately, and mutually supplement, the part of covering the shortage, and complex has the advantage of two kinds of structures simultaneously, and can reduce construction costs, reduction of erection time.
Antislide pile 6 is the piles that penetrate with sliding bed through sliding mass, utilize antislide pile 6 to insert the thrust of good ground below slide plane drag (anchored force) the balance slide mass to stake, increase its stability, prop up the sliding force of gear gliding mass, in the time that gliding, sliding mass is subject to the impedance of antislide pile 6, make a front gliding mass reach stable state, play stable side slope.Being applicable to shallow-layer and medium-bedded landslide, is that the measure extensively adopting is processed in a kind of antiskid.
The antislide pile 6 adopting in compound retaining structure of the present invention should guarantee that slope, top body does not skid off from stake top, does not extrude between stake, and the top soil body can produce soil arching effect with stake effect, and the constraint soil body glides and extrudes.The nature and characteristic of the top soil body is larger on soil arching effect impact, has influence on the value of pile spacing, thereby determines the magnitude setting of antislide pile.Pile spacing designs to guarantee that it is principle that sliding mass does not skid off between stake.The top soil body adopts earth structure, soil body continuity and globality are increased, interlock by layered rolling, grid and soil body particle is fixed etc., makes the soil body soil particle within the scope of reinforced earth more closely knit, compact, and whole reinforcing body forms continuous, a closely knit overall structure.The reinforcing body structure of continuity and globality can fully play and improve the anti-skid ability of antislide pile after being combined with antislide pile, can increase to a certain extent pile spacing, reduces the quantity of antislide pile, reduces construction costs, the reduction of erection time.Meanwhile, due to the characteristic of earth structure, also give the anti-seismic performance that this composite construction is good, be particularly useful for the high embankment in mountain area or the landslide control project of earthquake-prone region.
In high embankment side slope, reasonably by earth structure and antislide pile combination, be conducive under the premise that security is guaranteed, reduce construction costs, reduction of erection time, minimizing difficulty of construction etc.Such composite construction had both guaranteed the stable of the high embankment soil structures on slope, made again embankment works have good anti-seismic performance, and reduced difficulty of construction and the expense of engineering, had good practical value.
Embodiment recited above is described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under the prerequisite of design concept of the present invention; various modification and improvement that in this area, common engineers and technicians make technical scheme of the present invention; all should fall into protection scope of the present invention; the technology contents of request protection of the present invention, has all been documented in claims.
Claims (12)
1. the compound retaining structure of an earth structure and antislide pile combination, it is characterized in that, in described compound retaining structure, the top embankment that antislide pile is kept out is to banket in earth structure and rear portion thereof, and described earth structure is fixed by the interlock of layered rolling, grid and soil body particle, make the soil body soil particle within the scope of earth structure body more closely knit, compact, whole earth structure forms continuous, a closely knit overall structure, and protective slope body, guarantees the stability that this part is banketed; Bottom toe of wall or toe place that described antislide pile is positioned at earth structure, keep out the downslide of banketing in top earth structure and rear portion thereof.
2. compound retaining structure as claimed in claim 1, wherein said earth structure can be divided into reinforced earth side slope and two kinds of form of structure of reinforced earth bulkhead according to its domatic gradient.
3. compound retaining structure as claimed in claim 1, the every layers of reinforcement material of wherein said earth structure is level and lays, and banketing between upper and lower two layers of reinforcement material should be shakeout and layered rolling, compacted depth 0.2-0.3m, degree of compaction should meet design requirement.
4. compound retaining structure as claimed in claim 2, wherein said reinforced earth edge slope structure, the domatic gradient is generally 30-70 °, and described reinforced earth edge slope structure preferably adopts packaging type slope structure, is domaticly wrapped to form for reinforcement material layering.
5. compound retaining structure as claimed in claim 2, wherein said reinforced earth retaining wall structure, the metope gradient is 70-90 °, can be divided into and have panel barricade and without two kinds of form of structure of panel reinforced earth bulkhead according to metope form.
6. compound retaining structure as claimed in claim 5, the wherein said panel type reinforced earth bulkhead that has is preferably the modular reinforced earth bulkhead of concrete modular, the wall top of described modular reinforced earth retaining wall structure is provided with cap stone, described cap stone adopts monolithic reinforced concrete structure, its thickness must not be less than 0.4m, width must not be less than 0.6m, and cornice width is 0.1m.
7. compound retaining structure as claimed in claim 6, the wherein said metope without panel reinforced earth bulkhead is the barricade of muscle material packaging type structure, is wrapped to form by reinforcement material layering.
8. compound retaining structure as claimed in claim 6, the metope of wherein said modular reinforced earth bulkhead is that preset concrete modular is built by laying bricks or stones, the gradient outside wall is set on described metope and is not less than 4% spilled water hole, press up and down every 2-3m interlaced arrangement, the easy ponding place of the broken line wall back of the body must arrange spilled water hole, described spilled water hole adopts tube type material, is preset in concrete modular.
9. compound retaining structure as claimed in claim 8, the described spilled water hole influent side of wherein said modular reinforced earth bulkhead is provided with non-graded broken stone or sand folder cobble loaded filter, and thickness is greater than 0.3m, the loaded filter that the wall back of the body is expansive soil, thickness is not less than 0.5m; Described loaded filter top arranges the not seepage material sealing that 0.3-0.5m is thick, in the water inlet bottom in the minimum excretion water hole near ground, water barrier should be set.
10. as claim 5, the compound retaining structure described in 6,8 or 9, wherein said modular barricade can be made as Retaining Walls, and table top at different levels should be established the draining horizontal wall inscription that is not less than 2%, and are not less than the C15 concrete slab protection of 0.15m with thickness.
11. as claim 5, the compound retaining structure described in 6,8 or 9, and wherein said modular barricade, is provided with shrinkage joint along wall length every 10-20m or with other building joints, is provided with settlement joint in bottom variation place of substrate; Described shrinkage joint and settlement joint can merge setting, stitch wide employing 2-3cm, in seam, along inside and outside, top three limit filling pitch hemp cut or the pitch planks of wall, fill in the degree of depth and must not be less than 0.15m.
12. compound retaining structures as claimed in claim 2, in the time that top earth structure is reinforced earth retaining wall structure, described antislide pile position is arranged on the toe of wall position of described reinforced earth bulkhead; In the time that top earth structure is reinforced earth edge slope structure, described antislide pile position is arranged on the toe position of described reinforced earth side slope.
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| CN201310734532.3A CN103806453B (en) | 2013-12-27 | 2013-12-27 | The compound retaining structure that a kind of earth structure and friction pile combine |
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| CN201310734532.3A CN103806453B (en) | 2013-12-27 | 2013-12-27 | The compound retaining structure that a kind of earth structure and friction pile combine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104790428A (en) * | 2015-04-08 | 2015-07-22 | 贵州建工集团第一建筑工程有限责任公司 | Ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure and construction method thereof |
| CN107604940A (en) * | 2017-09-22 | 2018-01-19 | 西南交通大学 | A kind of steel pipe grid Expansive Soils Retaining Wall and its construction method |
| CN107882062A (en) * | 2017-11-30 | 2018-04-06 | 中国冶集团有限公司 | Massif hillside fields is based on gravity type and the compound Retaining wall method of Fill Reinforced With Geogrids |
| CN108166524A (en) * | 2018-01-23 | 2018-06-15 | 湖南工业大学 | Administer a wide range of, engineering method of tall earth fill and its thin-walled box type retaining wall |
| CN108978704A (en) * | 2018-08-14 | 2018-12-11 | 中国十七冶集团有限公司 | A kind of reinforced soil retaining wall and its construction method |
| CN110042848A (en) * | 2019-04-25 | 2019-07-23 | 马钢集团矿业有限公司 | A kind of reconstruction Artificial Side-slope method of openpit impervious consolidation |
| CN110820772A (en) * | 2019-11-21 | 2020-02-21 | 中国长江三峡集团有限公司 | Bulk accumulation body side slope slide-resistant pile and structured cementing combined reinforcing method and construction process |
| CN114277777A (en) * | 2021-11-24 | 2022-04-05 | 中铁二院工程集团有限责任公司 | Reinforcement type sheet pile wall based on coordinated deformation and design and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104790428A (en) * | 2015-04-08 | 2015-07-22 | 贵州建工集团第一建筑工程有限责任公司 | Ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure and construction method thereof |
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| CN108978704A (en) * | 2018-08-14 | 2018-12-11 | 中国十七冶集团有限公司 | A kind of reinforced soil retaining wall and its construction method |
| CN110042848A (en) * | 2019-04-25 | 2019-07-23 | 马钢集团矿业有限公司 | A kind of reconstruction Artificial Side-slope method of openpit impervious consolidation |
| CN110820772A (en) * | 2019-11-21 | 2020-02-21 | 中国长江三峡集团有限公司 | Bulk accumulation body side slope slide-resistant pile and structured cementing combined reinforcing method and construction process |
| CN114277777A (en) * | 2021-11-24 | 2022-04-05 | 中铁二院工程集团有限责任公司 | Reinforcement type sheet pile wall based on coordinated deformation and design and construction method thereof |
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|---|---|
| CN103806453B (en) | 2016-08-17 |
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