CN203174626U - Geogrid reinforced wall - Google Patents

Geogrid reinforced wall Download PDF

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Publication number
CN203174626U
CN203174626U CN 201220661740 CN201220661740U CN203174626U CN 203174626 U CN203174626 U CN 203174626U CN 201220661740 CN201220661740 CN 201220661740 CN 201220661740 U CN201220661740 U CN 201220661740U CN 203174626 U CN203174626 U CN 203174626U
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CN
China
Prior art keywords
geo
grid
concrete
anchor pole
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220661740
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Chinese (zh)
Inventor
夏飞
戴征杰
褚景英
赵燕
陈丽丽
王旭龙
杨广庆
朱冀军
陈泽明
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QINGDAO BOSTD GEOSYNTHETICS Ltd
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QINGDAO BOSTD GEOSYNTHETICS Ltd
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Priority to CN 201220661740 priority Critical patent/CN203174626U/en
Application granted granted Critical
Publication of CN203174626U publication Critical patent/CN203174626U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a geogrid reinforced wall which comprises a surface layer system and a geogrid reinforced soil body. The geogrid reinforced wall is characterized in that the other side face, opposite to the surface layer system, of the geogrid reinforced soil body leans against a hard slope surface, the hard slope surface is provided with anchor rod drill holes, anchor rods are inserted in the anchor rod drill holes and fixed, and geogrids are connected together with the anchor rods through connecting components; the bore diameter of each anchor rod drill hole is 50-100mm, and the distance between two adjacent anchor rods is 60-250cm. According to the geogrid reinforced wall, the problem that space of a reinforced field is limited is resolved, the geogrids of flexible retaining structures and the reinforced wall can still be constructed in an area with a small and narrow field, limited space, rocks and hard soil in an original state, construction efficiency is high, manufacturing cost is low, and the wall is firm and stable in structure.

Description

Geo-grid reinforcement body of wall
Technical field
The utility model belongs to the geotechnics field, relates in particular to a kind of geo-grid reinforcement body of wall.
Background technology
In engineering constructions such as present highway, railway, mine, foundation ditch, municipal administration, owing to different geological conditionss adopts different retaining structures.The retaining structure that is used for the excavation side slope in the engineering can be divided into rigidity retaining structure and flexible retaining structure two big classes.
The rigidity retaining structure refers to be aided with other necessary integrated treatment schemes based on masonry structure (gravity barricade, antislide pile and slabstone facing wall etc.).For the rigidity retaining structure, short retaining structure such as mortar flag stone, the gravity barricade is bulky, bricklaying is more (highly being generally less than 8m); The steel concrete cantilevered, hold up arm-type barricade (highly being generally less than 10m), such retaining structure engineering time is longer, the cost phase
To higher, anti-seismic performance is relatively poor.
Flexible retaining structure refers to based on the geo-grid reinforcement, is aided with the processing scheme that other necessary integrated treatment measure combines.Flexible retaining structure belongs to light-duty retaining structure, has good seismic resistance, and lower to the ground requirement for bearing capacity, Measures for Making Ground and Foundation is easier.When soft foundation was built, the foundation deformation that causes because banketing was little to the flexible structure stability influence.The stability of flexible retaining structure is born by the geo-grid reinforcement material that level is laid, so need enough spaces, place to lay reinforcement muscle material.Under the rock of difficulty excavation, original state pan soil situation, the use of the flexible retaining structure of geo-grid reinforcement is restricted.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of geo-grid reinforcement body of wall and job practices thereof, can solve the problem of reinforcement place limited space, make that the geo-grid reinforcement body of wall that adopts flexible retaining structure is narrow in the place, the zone of limited space and rock, original state pan soil also can construct, the efficiency of construction height, cost is low, and wall body structure is firm, stable.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of geo-grid reinforcement body of wall, comprise surface layer system and geo-grid reinforced earth body, the geo-grid reinforced earth body is to replace pressing by the geogrids layer of level laying and backfill packing layer to form, it is characterized in that the described geo-grid reinforced earth body another side relative with the surface layer system leans against on the hard slope, have armature boring on the hard slope, insert anchor pole and fixing in the armature boring, described geo-grid and described anchor pole link together by connecting elements; Described armature boring aperture is 50-100mm, and described adjacent anchor pole spacing is 60-250cm.
To improvement of the technical scheme: described hard slope is rock slope or hard slight slope face, described connecting elements comprises steel mesh reinforcement, skeleton reinforcing steel bar, described skeleton reinforcing steel bar is latticed and is arranged on the hard slope, described anchor pole exposes an end weldable steel backing plate, billet on skeleton reinforcing steel bar crossover sites and the corresponding anchor pole connects, described steel mesh reinforcement is arranged on the hard slope by geo-grid reinforced earth body one side, and is connected with geo-grid.
To further improvement in the technical proposal: described geogrids layer adopts the unidirectional geo-grid of high density polyethylene (HDPE), and the backfill packing layer is gravelly soil, gravelly soil and fine grained soils water permeability filler.
To further improvement in the technical proposal: described surface layer system by concrete bear down on one, railing, rubble drainage blanket, concrete modular, mortar mask, gutter, strip foundation form.
To further improvement in the technical proposal: described anchor pole is φ 20-35mm indented bars, and described steel mesh reinforcement is made of the indented bars of φ 10-16mm, and described skeleton reinforcing steel bar is made of the indented bars of φ 16-25mm.
The utility model compared with prior art has following advantage and good effect:
The compound retaining structure that the utility model provides a kind of geo-grid reinforced structure to be used in combination with anchor rod anchored structure, anchor structure is made up of rock and the anchor pole that is anchored in the rock; Connecting elements between geo-grid and anchor pole partly is made up of steel mesh reinforcement, skeleton reinforcing steel bar, cast-in-situ concrete etc.
Connecting elements is the transfer device of power in the utility model, will pass to geo-grid by the anchored force that anchor rod anchored structure produces, and balance is because of the not enough tension pull out force that reduces of geo-grid laying length, thereby guarantees the stability of whole retaining structure; As a kind of novel compound retaining structure form, geo-grid is compared with traditional soil-baffling structure form with the compound retaining structure that anchor pole is used in combination to be had: also can construct in the zone of, limited space narrow in the place and rock, original state pan soil, save cost, shorten the engineering time, save the reinforcement place, reduce fill out excavation, wall body structure firmly, advantage such as stable.
Description of drawings
Fig. 1 be the utility model geo-grid reinforcement body of wall structural representation;
Fig. 2 is the partial enlarged drawing shown in the A among Fig. 1;
Fig. 3 is that anchor pole is connected the layout schematic diagram among Fig. 1 with steel mesh reinforcement;
Fig. 4 is the partial enlarged drawing shown in Fig. 3 B;
Fig. 5 is that the 1-1 of Fig. 4 is to sectional view.
Among the figure: 1, concrete bears down on one; 2, railing; 3, rubble drainage blanket; 4, concrete modular; 5, mortar mask; 6, gutter; 7, above-ground route; 8, concrete bar shaped basis; 9, anchor pole; 10, hard slope (rock or hard soil); 11, backfill packing layer; 12, geo-grid; 13, steel mesh reinforcement; 14, skeleton reinforcing steel bar; 15, billet; 16, cement mortar; 17, armature boring; 18, cast-in-situ concrete.
The specific embodiment
The utility model is elaborated below in conjunction with accompanying drawing;
Referring to Fig. 1-Fig. 5, the embodiment of a kind of geo-grid reinforcement of the utility model body of wall comprises surface layer system and geo-grid reinforced earth body, and the geo-grid reinforced earth body is to replace pressing with backfill packing layer 11 for 12 layers by the geo-grid that level is laid to form.The another side that described geo-grid reinforced earth body is relative with the surface layer system leans against on the hard slope 10, have the vertical substantially armature boring 17 in some and the surface of hard slope 10 on the hard slope 10, the aperture of described armature boring 17 is 50-100mm, and the spacing of described adjacent anchor pole 9 is 60-250cm.Insert anchor pole 9 and fixing by cement mortar 16 in armature boring 17, described geo-grid 12 and described anchor pole 9 link together by connecting elements.
Above-mentioned hard slope 10 is rock slope or hard slight slope face, described connecting elements comprises steel mesh reinforcement 13, skeleton reinforcing steel bar 14, described skeleton reinforcing steel bar 14 is latticed and is arranged on the hard slope 10, described anchor pole 9 exposes an end weldable steel backing plate 15, billet 15 on skeleton reinforcing steel bar 14 crossover sites and the corresponding anchor pole 9 connects, described steel mesh reinforcement 13 is arranged on the hard slope 10 by geo-grid reinforced earth body one side, and is connected with geo-grid 12.Grid in the described skeleton reinforcing steel bar 14 is greater than the grid in the steel mesh reinforcement 13.
Above-mentioned anchor pole 9 is φ 20-35mm indented bars, generally selects the anchor pole 9 of φ 25 and 32 two kinds of specifications of φ for use.Described steel mesh reinforcement 13 is made of the indented bars of φ 10-16mm, generally selects the indented bars of φ 12 to constitute steel mesh reinforcement 13.Described skeleton reinforcing steel bar 14 is made of the indented bars of φ 16-25mm, generally selects the indented bars of φ 20 to constitute steel mesh reinforcement 14.
Above-mentioned geo-grid adopts the unidirectional geo-grid of high density polyethylene (HDPE) for 12 layers, and backfill packing layer 11 is gravelly soil, gravelly soil and fine grained soils water permeability filler.
Above-mentioned surface layer system by concrete bear down on one 1, railing 2, rubble drainage blanket 3, concrete modular 4, mortar mask 5, gutter 6, concrete bar shaped basis 8 form.Concrete structure is: concrete bar shaped basis 8 is laid on below the above-ground route 7, and concrete modular 4 is built in layering by laying bricks or stones on concrete bar shaped basis 8, and concrete modular 4 lateral surfaces tilt to hard slope 10.Inboard near concrete modular 4 successively arranges rubble drainage blanket 3, and described gutter 6 is arranged in rubble drainage blanket 3 and the concrete modular 4.Faulting of slab ends end face in the setting of surface layer system arranges mortar mask 5.At the superiors' concrete modular 4 concrete is set and bears down on one 1, concrete bears down on one and railing 2 is set on 1.
The utility model is before geo-grid reinforcement wall construction, according to layout plan, site topography figure, fill out related datas such as excavation, soil body parameter.After stability calculation, determine good following content: the gradient of geo-grid reinforced structure, height and form of fracture (whether establishing faulting of slab ends); The model of reinforcement material, length, vertical spacing, return packet length and consumption; Concrete modular, strip foundation and the shape of bearing down on one, size, concrete model and consumption; The arrangement form of anchor pole, skeleton reinforcing steel bar and steel mesh reinforcement, reinforcing bar model and consumption.
The step that geo-grid reinforcement wall construction method comprises is as follows:
The first step, the basic earthwork excavation; Second step, the strip foundation construction; The 3rd step, the construction of anchor pole 9 anchor structures; The 4th step, the connecting elements construction that geo-grid 12 and anchor pole are 9; The 5th step, the construction of geo-grid reinforced structure.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of doing according to the utility model claim still belongs to the scope that the utility model is contained.

Claims (5)

1. geo-grid reinforcement body of wall, comprise surface layer system and geo-grid reinforced earth body, the geo-grid reinforced earth body is to replace pressing by the geogrids layer of level laying and backfill packing layer to form, it is characterized in that the described geo-grid reinforced earth body another side relative with the surface layer system leans against on the hard slope, have armature boring on the hard slope, insert anchor pole and fixing in the armature boring, described geo-grid and described anchor pole link together by connecting elements; Described armature boring aperture is 50-100mm, and described adjacent anchor pole spacing is 60-250cm.
2. geo-grid reinforcement body of wall according to claim 1, it is characterized in that described hard slope is rock slope or hard slight slope face, described connecting elements comprises steel mesh reinforcement, skeleton reinforcing steel bar, described skeleton reinforcing steel bar is latticed and is arranged on the hard slope, described anchor pole exposes an end weldable steel backing plate, billet on skeleton reinforcing steel bar crossover sites and the corresponding anchor pole connects, and described steel mesh reinforcement is arranged on the hard slope by geo-grid reinforced earth body one side, and is connected with geo-grid.
3. geo-grid reinforcement body of wall according to claim 2 is characterized in that described geogrids layer adopts the unidirectional geo-grid of high density polyethylene (HDPE).
4. according to each described geo-grid reinforcement body of wall of claim 1-3, it is characterized in that described surface layer system beared down on one by concrete, railing, the rubble drainage blanket, concrete modular, the mortar mask, gutter, strip foundation is formed, described concrete bar shaped basis is laid on below the above-ground route, concrete modular is built in layering by laying bricks or stones on concrete bar shaped basis, the concrete modular lateral surface tilts to the hard slope, inboard near concrete modular successively arranges the rubble drainage blanket, described gutter is arranged in rubble drainage blanket and the concrete modular, faulting of slab ends end face in the setting of surface layer system arranges the mortar mask, at the superiors' concrete modular concrete is set and bears down on one, on concrete bears down on one railing is set.
5. according to claim 2 or 3 described geo-grid reinforcement bodies of wall, it is characterized in that described anchor pole is φ 20-35mm indented bars, described steel mesh reinforcement is made of the indented bars of φ 10-16mm, and described skeleton reinforcing steel bar is made of the indented bars of φ 16-25mm.
CN 201220661740 2012-12-05 2012-12-05 Geogrid reinforced wall Expired - Fee Related CN203174626U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220661740 CN203174626U (en) 2012-12-05 2012-12-05 Geogrid reinforced wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220661740 CN203174626U (en) 2012-12-05 2012-12-05 Geogrid reinforced wall

Publications (1)

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CN203174626U true CN203174626U (en) 2013-09-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966119A (en) * 2012-12-05 2013-03-13 青岛旭域土工材料股份有限公司 Geogrid reinforced wall and construction method thereof
CN103806453A (en) * 2013-12-27 2014-05-21 青岛旭域土工材料股份有限公司 Reinforced soil structure and slide-resistant pile combined composite retaining structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966119A (en) * 2012-12-05 2013-03-13 青岛旭域土工材料股份有限公司 Geogrid reinforced wall and construction method thereof
CN102966119B (en) * 2012-12-05 2015-07-01 青岛旭域土工材料股份有限公司 Geogrid reinforced wall and construction method thereof
CN103806453A (en) * 2013-12-27 2014-05-21 青岛旭域土工材料股份有限公司 Reinforced soil structure and slide-resistant pile combined composite retaining structure
CN103806453B (en) * 2013-12-27 2016-08-17 青岛旭域土工材料股份有限公司 The compound retaining structure that a kind of earth structure and friction pile combine

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20161205

CF01 Termination of patent right due to non-payment of annual fee