CN103452130B - The deformed bar net board-like barricade of reinforcement earth pillar - Google Patents
The deformed bar net board-like barricade of reinforcement earth pillar Download PDFInfo
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- CN103452130B CN103452130B CN201310363756.8A CN201310363756A CN103452130B CN 103452130 B CN103452130 B CN 103452130B CN 201310363756 A CN201310363756 A CN 201310363756A CN 103452130 B CN103452130 B CN 103452130B
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Abstract
The invention discloses a kind of deformed bar net board-like barricade of reinforcement earth pillar, fill roadbed filling in the space that barricade surrounds, bury bar-mat reinforcement in described roadbed filling underground, described bar-mat reinforcement forms an overall structure with barricade anchoring.The present invention solves the problems such as the foundation bearing capacity of common barrier wall structure (such as gravity retaining wall, balance weight retaining wall, cantilever retaining wall, counterfort wall) is inadequate and base coefficient of friction is inadequate；Secondly bar-mat reinforcement intensity is high, it is little to deform, and for the most high-strength geosynthetics, cost is relatively low；Next utilizes post plank frame, and stress is distinct, and closing slope effect is notable, good looking appearance；Again by the design of prestressing force connector, overcome reinforced earth bulkhead deformation big, the shortcoming of the easy external drum of panel, improve the globality of barrier wall structure.
Description
Technical field
The present invention relates to the field of traffic such as railway, highway, town road, particularly relate to a kind of deformed bar net board-like barricade of reinforcement earth pillar being applied to civil engineering embankment engineering.
Background technology
When the build (highway, town road, railway) of route is subject to conditions, must be close to existing buildings by or limited by landform can not put slope time, need to arrange subgrade support retainer structure closing slope or build a bridge to pass through, the roadbed cost arranging retaining structure is generally below Cost of Bridge, and the most conventional is common reinforced earth bulkhead and post board-like anchor pole (anchor cable) barricade.
Reinforced earth bulkhead is to be collectively forming barrier wall structure by the soil body of rib tape connection panel with rib tape stabilization zone, and the gravity by reinforced earth retaining wall structure resists soil pressure.Construction quality is the key of earth structure success or failure, and rib tape plays a role in soil needs bigger deformation, if the straight panel construction that may result in of rib tape non-stretch-draw in process of deployment bulges, this is the quality accident that reinforced earth retaining wall structure is common.Each piece of panel is monomer structure, is connected with each other weakness, and construction and installation are the most relatively complicated, and the extruding of construction period filler counter plate also results in the displacement of panel, and the appearance that Construction of Reinforced Earth Retaining Walls completes typically is difficult to reach the requirement of design.
Post board-like anchor pole (anchor cable) barricade applies in general to execavated rockmass engineering, and the anchor force mainly by anchor pole (anchor cable) overcomes soil pressure, is pile plate wall when arranging pile foundation.Filled-up ground arranges post board-like anchor cable barricade (because filler provides anchor force inadequate, anchor pole is inapplicable), anchor cable needs through filled-up ground, enter and effectively anchor supporting course, only feasible at abrupt slope filled-up ground, because anchor cable needs through filler, Subgrade Compaction forms the biggest interference, often rolling destruction anchor cable structure because of roadbed, and anchor cable needs professional contingent and Special Equipment construction, cost is the most of a relatively high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of can overcome the geosynthetics big shortcoming of deformation, can improve the deformed bar net board-like barricade of reinforcement earth pillar of reinforced earth bulkhead globality.
In order to solve above-mentioned technical problem, the invention provides a kind of deformed bar net board-like barricade of reinforcement earth pillar, fill roadbed filling in the space that barricade surrounds, bury bar-mat reinforcement in described roadbed filling underground, described bar-mat reinforcement forms an overall structure with barricade anchoring.
Further, described barricade includes column and baffle plate, and described baffle plate is arranged between adjacent upright posts, and the both sides of described column are provided with wing plate, and described wing plate closely pastes tactile with baffle plate.
Further, described column and baffle plate are combining structure.
Further, described column and baffle plate are integral cast-in-situ structure.
Further, described bar-mat reinforcement is anchored with column by connector, and described column is evenly arranged with bolthole, described connector includes shaped steel and anchor pole, described shaped steel and bar-mat reinforcement connect into entirety, and one end of described anchor pole is hooked in the middle part of shaped steel, and the other end anchors through bolthole with column.
Further, the bottom of described column is provided with basis, and the bottom of described roadbed filling is provided with bed course.
Further, described basis is pile foundation, and the top rebars of described pile foundation anchors with the bottom reinforcement bars of column.
Further, described bed course is Base with Sand Gravel Cushion, and the top of described Base with Sand Gravel Cushion is provided with base plate, and described base plate and column are connected as entirety.
Further, being respectively provided with an expansion joint every a distance on base plate and baffle plate, described expansion joint is positioned at the centre position of two columns.
Further, described barrier wall structure is arranged to multilevel hierarchy form, is provided with platform between every adjacent two-stage.
The invention have the advantages that and first solve the problems such as the foundation bearing capacity of common barrier wall structure (such as gravity retaining wall, balance weight retaining wall, cantilever retaining wall, counterfort wall) is inadequate and base coefficient of friction is inadequate；Secondly bar-mat reinforcement intensity is high, it is little to deform, and for the most high-strength geosynthetics, cost is relatively low；Next utilizes post plank frame, and stress is distinct, and closing slope effect is notable, good looking appearance；Again by the design of prestressing force connector, overcome reinforced earth bulkhead deformation big, the shortcoming of the easy external drum of panel, improve the globality of barrier wall structure.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the deformed bar net board-like barricade of reinforcement earth pillar of the present invention；
Fig. 2 is the elevation of the deformed bar net board-like barricade of reinforcement earth pillar of the present invention；
Fig. 3 is the structure chart of bar-mat reinforcement of the present invention.
In figure, 1. column, 11. baffle plates, 12. boltholes, 2. bar-mat reinforcement, 3. connector, 31. shaped steel, 32. anchor poles, 4. bed course, 5. basis, 6. above-ground route, 7. roadbed filling.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of deformed bar net board-like barricade of reinforcement earth pillar, in the space that barricade surrounds, fill roadbed filling 7, roadbed filling 7 preferentially uses gravel class filler, and filler may be used without cohesive soil filler when lacking.Burying bar-mat reinforcement 2 in described roadbed filling 7 underground, described bar-mat reinforcement 2 forms an overall structure with barricade anchoring.
Described barricade includes column 1 and baffle plate 11, described baffle plate 11 is arranged between adjacent upright posts 1, the both sides of described column 1 are provided with wing plate, described wing plate closely pastes with baffle plate 11 and touches, by wing plate, the soil pressure that baffle plate 11 bears is delivered on column 1, column 1 uses C25 and above armored concrete to pour, its height, width, length determine according to calculating, baffle plate 11 between column 1 uses C25 and above armored concrete to pour, and its height, width, length, thickness are to calculate determine according to column 1 height and spacing.
Column 1 and baffle plate 11 can use precast block and constitute combining structure, it is possible to uses integral cast-in-situ mode baffle plate 11 will to water with column 1 and build up an entirety.
Described bar-mat reinforcement 2 is anchored with column 1 by connector 3, described column 1 is evenly arranged with bolthole 12, in the present embodiment, each column 1 can be reserved 1 ~ 10 bolthole 12.Described bar-mat reinforcement 2 can use reinforcement welding to be formed, also component (containing power transmission shaped steel) can be become by producer's one-piece casting, bar-mat reinforcement 2 should take anti-corrosion measure, anti-corrosion measure can use zinc-plated, plastic-blasting, the measure such as spray paint, bar-mat reinforcement 2 is longitudinally wide, the diameter of length, reinforcing bar and spacing determine according to calculating, and same layer two width bar-mat reinforcement 2 carries out colligation connection after laying.Described connector 3 includes shaped steel 31 and anchor pole 32, and described shaped steel 31 connects into entirety with bar-mat reinforcement 2, and one end of described anchor pole 32 is hooked in the middle part of shaped steel 32, and the other end anchors through bolthole 12 with column 1.
In the present embodiment, anchor pole 32 is high-strength finish rolling reinforcing bar, shaped steel 31 and bar-mat reinforcement 2 connect into entirety, and one end of high-strength finish rolling reinforcing bar is hooked in the middle part of shaped steel 31, through bolthole 12, stretch out the outer 30 ~ 80cm(of column 1 and be easy to Shi Hanzhang), after Shi Hanzhang (according to filled slope, classification applies), pad, nut is used to be anchored on column 1, after prestress application completes, excise unnecessary reinforcing bar sealing off and covering anchorage.
The bottom of described column 1 is provided with basis 5, and when foundation bearing capacity deficiency, described basic 5 can be set to pile foundation, and pile foundation uses C25 and above deposited reinforced concrete pile (or caisson), and stake footpath, stake are long, pilespacing determines according to calculating.Stake footpath is typically no less than 1.0m；The long need of stake meet requirement for bearing capacity, and longitudinal pilespacing is generally higher than 2.5m.The top rebars of described pile foundation anchors with the bottom reinforcement bars of column 1, pile foundation top reinforcing bar is tried one's best integral with column 1 bar connecting (as used caisson, column size preferably keeps completely the same with caisson, or more smaller), as pile foundation uses drilled pile, the main muscle in pile foundation top should stretch into 0.5 ~ 1.0m in column, and muscle main with column 1 overlap joint (or welding) through base plate.
The bottom of described roadbed filling 7 is provided with bed course 4, and described bed course 4 is Base with Sand Gravel Cushion, and Base with Sand Gravel Cushion uses clean medium coarse sand or sand gravel, should there is good grating, thickness typically takes 50 ~ 100cm, acts primarily as eliminating groundwater effect, can not be not provided with Base with Sand Gravel Cushion by influence on groundwater area.
The top of described Base with Sand Gravel Cushion is provided with base plate, described base plate and column 1 are connected as entirety, when foundation bearing capacity deficiency, transverse bottom plate can be set on Base with Sand Gravel Cushion top, transverse bottom plate and column 1 are connected as entirety, can arrange chamfering in the junction of column 1 with transverse bottom plate, chamfer dimesion can determine according to calculating.Transverse bottom plate uses C25 and above armored concrete to pour, and thickness, width, length determine according to calculating, and transverse bottom plate bottom surface should not be above the ground level.
Being respectively provided with an expansion joint on base plate and baffle plate 11 every a distance, described expansion joint is positioned at the centre position of two columns 1.If being provided with reinforced concrete floor, the deformed bar net reinforcement earth pillar every 10m ~ 20m of board-like barricade is a unit, 2 ~ 3cm expansion joint is set between each unit, in the middle of expansion joint setting base plate between two columns 1, as baffle plate 11 uses cast-in-place structural, with base plate expansion joint, position, baffle plate 11 are also required to arrange expansion joint, filled bitumen hemp cut or waterproof material between seam.
Described barrier wall structure is arranged to multilevel hierarchy form, is provided with platform between every adjacent two-stage.The width of platform determines according to calculating.
Pavement structure is individually designed, and when needs arrange anticollision barrier, guardrail preferably uses reinforced concrete fence, and connects into entirety with column.
The present invention solves the problems such as the foundation bearing capacity of common barrier wall structure (such as gravity retaining wall, balance weight retaining wall, cantilever retaining wall, counterfort wall) is inadequate and base coefficient of friction is inadequate；Secondly bar-mat reinforcement 2 intensity is high, it is little to deform, and for the most high-strength geosynthetics, cost is relatively low；Next utilizes post plank frame, and stress is distinct, and closing slope effect is notable, good looking appearance；Again by the design of prestressing force connector 3, overcome reinforced earth bulkhead deformation big, the shortcoming of the easy external drum of panel, improve the globality of barrier wall structure.
Embodiment described above is only the preferred embodiment lifted by absolutely proving the present invention, and protection scope of the present invention is not limited to this.The equivalent that those skilled in the art are made on the basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (5)
1. the deformed bar net board-like barricade of reinforcement earth pillar, roadbed filling is filled in the space that barricade surrounds, it is characterized in that, described roadbed filling buries bar-mat reinforcement underground, described bar-mat reinforcement forms an overall structure with barricade anchoring, described barricade includes column and baffle plate, described baffle plate is arranged between adjacent upright posts, the both sides of described column are provided with wing plate, described wing plate closely pastes tactile with baffle plate, described bar-mat reinforcement is anchored with column by connector, it is evenly arranged with bolthole on described column, described connector includes shaped steel and anchor pole, described shaped steel and bar-mat reinforcement connect into entirety, one end of described anchor pole is hooked in the middle part of shaped steel, the other end anchors through bolthole with column；The bottom of described column is provided with basis, and the bottom of described roadbed filling is provided with bed course；Described basis is pile foundation, and the top rebars of described pile foundation anchors with the bottom reinforcement bars of column；Described bed course is Base with Sand Gravel Cushion, and the top of described Base with Sand Gravel Cushion is provided with base plate, and described base plate and column are connected as entirety.
The deformed bar net board-like barricade of reinforcement earth pillar the most according to claim 1, it is characterised in that described column and baffle plate are combining structure.
The deformed bar net board-like barricade of reinforcement earth pillar the most according to claim 1, it is characterised in that described column and baffle plate are integral cast-in-situ structure.
The deformed bar net board-like barricade of reinforcement earth pillar the most according to claim 1, it is characterised in that being respectively provided with an expansion joint on base plate and baffle plate every a distance, described expansion joint is positioned at the centre position of two columns.
The deformed bar net board-like barricade of reinforcement earth pillar the most according to claim 4, it is characterised in that described barrier wall structure is arranged to multilevel hierarchy form, is provided with platform between every adjacent two-stage.
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| CN201310363756.8A CN103452130B (en) | 2013-08-20 | 2013-08-20 | The deformed bar net board-like barricade of reinforcement earth pillar |
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| CN201310363756.8A CN103452130B (en) | 2013-08-20 | 2013-08-20 | The deformed bar net board-like barricade of reinforcement earth pillar |
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| CN103452130B true CN103452130B (en) | 2016-08-31 |
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| CN106192884A (en) * | 2016-09-07 | 2016-12-07 | 蒋安美 | A kind of retaining wall for hydraulic engineering |
| CN106567404A (en) * | 2016-11-09 | 2017-04-19 | 中交公局第四工程有限公司 | Expansive soil cutting semi-rigid top retaining wall design and construction method |
| CN106760577B (en) * | 2016-12-30 | 2022-09-20 | 青岛旭域土工材料股份有限公司 | Frame module type plastic geogrid reinforced soil protection structure and construction method thereof |
| CN107524159B (en) * | 2017-01-19 | 2019-07-19 | 湖南大学 | A kind of hybrid reinforced soil retaining wall |
| CN107447775A (en) * | 2017-08-09 | 2017-12-08 | 中国地质环境监测院 | Landslide disaster body makes ground draining reinforced earth retaining wall structure |
| CN107975062B (en) * | 2017-12-07 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Steep slope embankment light combined retaining structure and construction method |
| CN111058475A (en) * | 2019-12-29 | 2020-04-24 | 中铁二院工程集团有限责任公司 | High-intensity seismic area pile foundation joist constant-weight retaining wall structure and construction method |
| CN111676999A (en) * | 2020-06-03 | 2020-09-18 | 安徽省交通规划设计研究总院股份有限公司 | Pile plate reinforced retaining wall and construction method thereof |
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