CN205116204U - Roadbed structure of crowded native bored concrete pile stake board of two -way spiral - Google Patents
Roadbed structure of crowded native bored concrete pile stake board of two -way spiral Download PDFInfo
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- CN205116204U CN205116204U CN201520763166.9U CN201520763166U CN205116204U CN 205116204 U CN205116204 U CN 205116204U CN 201520763166 U CN201520763166 U CN 201520763166U CN 205116204 U CN205116204 U CN 205116204U
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Abstract
The utility model provides a roadbed structure of crowded native bored concrete pile stake board of two -way spiral, including burying the crowded native bored concrete pile of two -way spiral that many even intervals in the ground set up underground, laying at the bed course of making level of ground upper surface, laying at the polylith plate -girder of bed course upper surface of making level, wherein, the bed course of making level sets up in the crowded native bored concrete pile top of two -way spiral, is provided with the steel reinforcement cage in the crowded native bored concrete pile top of two -way spiral, the top of steel reinforcement cage expose in the top of the crowded native bored concrete pile of two -way spiral and with plate -girder fixed connection, integral embankment has been laid to the plate -girder upper surface, has laid the banket wall between embankment and the ground, the bottom of banket wall is buried underground in the ground. The utility model is suitable for a handle the collapsible loess, miscellaneously banket, complex foundation type such as underconsolidated soil to good bearing characteristics still has under dynamic load, horizontal loading.
Description
Technical field
The utility model belongs to subgrade construction field, more specifically relates to a kind of road structure of bidirectional screw soil compaction grout pile plate.
Background technology
For meeting Deformation control and the requirement for bearing capacity of ground, especially meet the high-level the control technique of settlement after construction requirement of ballastless track roadbed, foundation treatment technology obtains development in railway construction in China.Reinforced concrete drilling bidirectional screw soil compaction grout pile plated construction, as a kind of NEW TYPE OF COMPOSITE foundation treatment technology, has that sedimentation is little, intensity is high, the feature such as stability and good endurance, is applied very well in engineering.But reinforced concrete drilling bidirectional screw soil compaction grout pile plated construction, not only construction costs is higher, and not good for special foundation condition effects such as collapsible loess, miscellaneous fill, underconsolidated soils, limits it and further applies.
Utility model content
The purpose of this utility model is exactly the defect for prior art, a kind of road structure of bidirectional screw soil compaction grout pile plate is provided, be applicable to the complex foundation types such as process collapsible loess, miscellaneous fill, underconsolidated soil, and under dynamic loading, horizontal loads, still there is good bearer properties.
The utility model provides a kind of road structure of bidirectional screw soil compaction grout pile plate, comprise the bidirectional screw soil compaction castinplace pile that the many uniform intervals be embedded in ground are arranged, be laid on the levelling bed course of ground upper surface, be laid on the polylith plate-girder of levelling bed course upper surface, wherein, described levelling bed course is arranged at bidirectional screw soil compaction castinplace pile top, bidirectional screw soil compaction castinplace pile is provided with reinforcing cage in top, the top of reinforcing cage exposes to the top of bidirectional screw soil compaction castinplace pile and is fixedly connected with plate-girder, described plate-girder upper surface is equipped with monolithic embankment, toe wall is equipped with between embankment and ground, the bottom of described toe wall is embedded in ground.
Described polylith plate-girder is arranged along ground length direction uniform intervals, arranges shrinkage joint between adjacent two boards beam, clogs Bituminous hemp fiber or medium coarse sand in shrinkage joint.
Described bidirectional screw soil compaction castinplace pile is set up in parallel the pile body group forming arranged in squares side by side, and described pile body group is uniformly distributed along ground length direction interval.
Described levelling bed course is graded broken stone or medium coarse sand, and its thickness is 0.1m.
Described plate-girder is the reinforced concrete structure of rectangular slab bulk, and its thickness is 0.6 ~ 1.0m, and every block plate-girder is 12 ~ 16m along the length of ground circuit longitudinal direction.
Described bidirectional screw soil compaction grout pile footpath is 0.35 ~ 0.8m, and the spacing between adjacent bidirectional screw soil compaction castinplace pile is 3 ~ 6 times of stake footpaths.
Described multiple shrinkage joint is along ground circuit genesis analysis, and each shrinkage joint is all along along circuit laterally elongated setting, and expansion joint width is 2cm.
Describedly be symmetrically arranged in both sides, shrinkage joint near two row's bidirectional screw soil compaction castinplace piles in both sides of the edge, shrinkage joint, edge, shrinkage joint is not less than the bidirectional screw soil compaction grout pile footpath of twice with the horizontal range of the bidirectional screw soil compaction castinplace pile nearest apart from it.
Described reinforcing cage has vertical main muscle and lateral tie anchoring to form entirety, and the bottom of described reinforcing cage is tapered.
The length of described reinforcing cage is greater than 1/3 of bidirectional screw soil compaction grout pile length and is not less than 4m, the partial depth that reinforcing cage inserts bidirectional screw soil compaction castinplace pile is not less than 1/3 of bidirectional screw soil compaction grout pile length, and the vertical main muscle top of reinforcing cage exposes to bidirectional screw soil compaction castinplace pile top and the vertical main muscle length of its part exposed is 10 ~ 30cm.
The utility model is compared with the composite foundation stabilization stake of routine, and the scope of application is wider, not only can use in common mollisol stratum, also can be used for miscellaneous fill, collapsible loess, containing special foundation conditions such as hard interbedded layers.The utility model, for the treatment of grounds such as collapsible loess, miscellaneous fill, underconsolidated soils, by compacted inter-pile soil, not only increases bearing capacity of foundation soil, and can also eliminate collapsibility of loess, miscellaneous fill and underconsolidated soil owes consolidation characteristics simultaneously.Compared with the reinforced concrete pile pile slab structure composite foundation of routine, the utility model is cost not only, also can improve bearing capacity of foundation soil and ground bear the specific condition such as dynamic loading, horizontal loading under stability, expand the applicability of bidirectional screw soil compaction castinplace pile, be particularly useful for the Special Roadbed engineerings such as steep slope subgrade, short roadbed, collapsible loess subgrade.The utility model adopts bidirectional screw soil compaction castinplace pile, utilize the soil compaction effect in formation of pile, artificial constructing soil, collapsible loess etc. can be carried out horizontal encryption, not only increase bearing capacity of foundation soil, also eliminate the settlement by soaking of loess and the consolidation deformation of artificial constructing soil.Described bidirectional screw soil compaction castinplace pile is a kind of by helix extruding-enlarging drill bit squeezed hole, carries synchronous guncreting in drill-through journey, a kind of extrusion soil filling pile finally formed.Under rig moment of torsion and vertical pressure effect, in formation of pile, use machinery and the squeezed technique of pressure, the soil body in stake holes is expressed in the soil body around stake holes completely, and forms cylindrical complete soil compaction type extrusion soil filling pile.Bidirectional screw soil compaction bored pile piling technology has that telephone-moving and pile-forming speed are fast, work progress does not need mud circulation, the duration is shorter, does not fetch earth, pollution-free, bearing capacity of single pile high.Reinforcing cage, for realizing being fixedly connected with between bidirectional screw soil compaction castinplace pile and levelling bed course, strengthens resistance to overturning of the present utility model further.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model top view
Wherein, 1-bidirectional screw soil compaction castinplace pile, the levelling bed course of 2-, 3-plate-girder, 4-embankment, 5-toe wall, 6-ground, 7-reinforcing cage, the vertical main muscle of 8-, 9-lateral tie, 10-shrinkage joint.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form restriction to the utility model.
As shown in Figure 1, the road structure of a kind of bidirectional screw soil compaction of the utility model grout pile plate, comprise the bidirectional screw soil compaction castinplace pile 1 that the many uniform intervals be embedded in ground 6 are arranged, be laid on the levelling bed course 2 of ground 6 upper surface, be laid on the polylith plate-girder 3 of levelling bed course 2 upper surface, wherein, described levelling bed course 2 is arranged at bidirectional screw soil compaction castinplace pile 1 top, bidirectional screw soil compaction castinplace pile 1 is provided with reinforcing cage 7 in top, the top of reinforcing cage 7 exposes to the top of bidirectional screw soil compaction castinplace pile 1 and is fixedly connected with plate-girder 3, described plate-girder 3 upper surface is equipped with monolithic embankment 4, toe wall 5 is equipped with between embankment 4 and ground 6, the bottom of described toe wall 5 is embedded in ground 6.
Described polylith plate-girder 3 is arranged along ground length direction uniform intervals, arranges shrinkage joint 5 between adjacent two boards beam 3, filling Bituminous hemp fiber or medium coarse sand in shrinkage joint 5.Described plate-girder is the reinforced concrete structure of rectangular slab bulk, and its thickness is 0.6 ~ 1.0m, and the reinforcing bar in plate-girder configures according to force analysis result.Every block plate-girder is 12 ~ 16m along the length of ground circuit longitudinal direction.Described multiple shrinkage joint is along ground circuit genesis analysis, and each shrinkage joint is all along along circuit laterally elongated setting, and expansion joint width is 2cm.Describedly be symmetrically arranged in both sides, shrinkage joint near two row's bidirectional screw soil compaction castinplace piles in both sides of the edge, shrinkage joint, edge, shrinkage joint is not less than the bidirectional screw soil compaction grout pile footpath of twice with the horizontal range of the bidirectional screw soil compaction castinplace pile nearest apart from it.
Described bidirectional screw soil compaction castinplace pile 1 is set up in parallel the pile body group forming arranged in squares side by side, and described pile body group is uniformly distributed along ground 6 length direction interval.Described bidirectional screw soil compaction castinplace pile effectively can strengthen foundation stability, and reduces Embankment Subsidence.Described bidirectional screw soil compaction castinplace pile is a kind of by helix extruding-enlarging drill bit squeezed hole, carry synchronous guncreting in drill-through journey, precast reinforced cage is inserted immediately, the two-way spiral extrusion soil filling pile of steel concrete of a kind of soil compaction character finally formed after having poured into.Under rig moment of torsion and vertical pressure effect, in formation of pile, use machinery and the squeezed technique of pressure, the soil body in stake holes is expressed in the soil body around stake holes completely, and forms cylindrical complete soil compaction type bidirectional screw soil compaction castinplace pile.Bidirectional screw soil compaction bored pile piling technology has that telephone-moving and pile-forming speed are fast, work progress does not need mud circulation, the duration is shorter, does not fetch earth, pollution-free, bearing capacity of single pile high.Described bidirectional screw soil compaction castinplace pile, the good filling concrete of mobility should be adopted to form, and pile body bottom is plain concrete construction, and pile body top is reinforced concrete structure.After pile concrete has poured into, inserted prefabricated reinforcing cage on pile body top by concrete vibrating mode immediately, reinforcing cage insertion depth be not less than stake long 1/3.Bidirectional screw soil compaction castinplace pile, stake footpath is generally 0.35 ~ 0.8m, and the general square mode that adopts is arranged, pile spacing generally adopts 3 ~ 6 times of stake footpaths, and maximum construction stake length can reach about 30m, and stake is long to be determined according to distortion and calculation of bearing capacity with pile spacing.
Described levelling bed course 2 is graded broken stone or medium coarse sand, and its thickness is 0.1m, ensures the uniform force of plate-girder and ground contact surface.
Described reinforcing cage 7 has vertical main muscle 8 and lateral tie 9 anchoring to form entirety, and the bottom of described reinforcing cage is tapered.Described reinforcing cage 7 is for realizing being fixedly connected with between bidirectional screw soil compaction castinplace pile 1 and levelling bed course 2.The length of described reinforcing cage is greater than 1/3 of bidirectional screw soil compaction grout pile length and is not less than 4m, the partial depth that reinforcing cage inserts bidirectional screw soil compaction castinplace pile is not less than 1/3 of bidirectional screw soil compaction grout pile length, and the vertical main muscle top of reinforcing cage exposes to bidirectional screw soil compaction castinplace pile top and the vertical main muscle length of its part exposed is 10 ~ 30cm.
During construction, first flatten the construction that bidirectional screw soil compaction castinplace pile 1 is carried out in place again.Make bidirectional screw soil compaction castinplace pile 1 through foundation soil body, make stake end enter bearing stratum.Then insert reinforcing cage 7 to bidirectional screw soil compaction castinplace pile 1 inside, and apply levelling bed course 2 at foundation surface.Apply raft plate plate-girder 3 in levelling mat surface again, the end that reinforcing cage 7 exposes is welded with plate-girder 3 simultaneously.And then apply toe wall 5 at assigned address.Embankment 4 above reinforcement cushion is set after completion, adopts placement in layers, layered rolling construction.
The content that this manual is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. the road structure of a bidirectional screw soil compaction grout pile plate, it is characterized in that: it comprises the bidirectional screw soil compaction castinplace pile (1) that the many uniform intervals be embedded in ground (6) are arranged, be laid on the levelling bed course (2) of ground (6) upper surface, be laid on the polylith plate-girder (3) of levelling bed course (2) upper surface, wherein, described levelling bed course (2) is arranged at bidirectional screw soil compaction castinplace pile (1) top, reinforcing cage (7) is provided with in bidirectional screw soil compaction castinplace pile (1) top, the top of reinforcing cage (7) exposes to the top of bidirectional screw soil compaction castinplace pile (1) and is fixedly connected with plate-girder (3), described plate-girder (3) upper surface is equipped with monolithic embankment (4), toe wall (5) is equipped with between embankment (4) and ground (6), the bottom of described toe wall (5) is embedded in ground (6).
2. the road structure of bidirectional screw soil compaction grout pile plate according to claim 1, it is characterized in that described polylith plate-girder (3) is arranged along ground length direction uniform intervals, between adjacent two boards beam (3), shrinkage joint (10) is set, filling Bituminous hemp fiber or medium coarse sand in shrinkage joint (10).
3. the road structure of bidirectional screw soil compaction grout pile plate according to claim 1, it is characterized in that described bidirectional screw soil compaction castinplace pile (1) is set up in parallel the pile body group forming arranged in squares side by side, described pile body group is uniformly distributed along ground (6) length direction interval.
4. the road structure of bidirectional screw soil compaction grout pile plate according to claim 1, it is characterized in that levelling bed course (2) is for graded broken stone or medium coarse sand, its thickness is 0.1m.
5. the road structure of bidirectional screw soil compaction grout pile plate according to claim 1, it is characterized in that described plate-girder is the reinforced concrete structure of rectangular slab bulk, its thickness is 0.6 ~ 1.0m, and every block plate-girder is 12 ~ 16m along the length of ground circuit longitudinal direction.
6. the road structure of bidirectional screw soil compaction grout pile plate according to claim 1, it is characterized in that bidirectional screw soil compaction castinplace pile (1) stake footpath is 0.35 ~ 0.8m, the spacing between adjacent bidirectional screw soil compaction castinplace pile (1) is 3 ~ 6 times of stake footpaths.
7. the road structure of bidirectional screw soil compaction grout pile plate according to claim 1, it is characterized in that described multiple shrinkage joint is along ground circuit genesis analysis, each shrinkage joint is all along along circuit laterally elongated setting, and shrinkage joint (10) width is 2cm.
8. the road structure of bidirectional screw soil compaction grout pile plate according to claim 7, it is characterized in that being symmetrically arranged in both sides, shrinkage joint near two rows' bidirectional screw soil compaction castinplace pile (1) in shrinkage joint (10) both sides of the edge, shrinkage joint (10) edge is not less than the bidirectional screw soil compaction grout pile footpath of twice with the horizontal range of bidirectional screw soil compaction castinplace pile (1) nearest apart from it.
9. the road structure of bidirectional screw soil compaction grout pile plate according to claim 8, it is characterized in that described reinforcing cage (7) has vertical main muscle (8) and lateral tie (9) anchoring to form entirety, the bottom of described reinforcing cage (7) is tapered.
10. the road structure of bidirectional screw soil compaction grout pile plate according to claim 9, it is characterized in that the length of described reinforcing cage (7) be greater than bidirectional screw soil compaction castinplace pile (1) stake long 1/3 and be not less than 4m, the partial depth that reinforcing cage (7) inserts bidirectional screw soil compaction castinplace pile (1) is not less than 1/3 of bidirectional screw soil compaction grout pile length, and vertical main muscle (8) top of reinforcing cage exposes to bidirectional screw soil compaction castinplace pile (1) top and the vertical main muscle length of its part exposed is 10 ~ 30cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763166.9U CN205116204U (en) | 2015-09-29 | 2015-09-29 | Roadbed structure of crowded native bored concrete pile stake board of two -way spiral |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520763166.9U CN205116204U (en) | 2015-09-29 | 2015-09-29 | Roadbed structure of crowded native bored concrete pile stake board of two -way spiral |
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| CN205116204U true CN205116204U (en) | 2016-03-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970755A (en) * | 2016-05-27 | 2016-09-28 | 宁波市交通规划设计研究院有限公司 | Construction method for prevention and treatment for sidewise slippage of soft soil roadbed |
| CN110424202A (en) * | 2019-08-20 | 2019-11-08 | 中建协和建设有限公司 | Border on the sea roadbed wave prevention structure and its construction method |
| CN111794031A (en) * | 2020-07-01 | 2020-10-20 | 浙江省衢州市交通建设集团有限公司 | Separated highway subgrade and construction method thereof |
| CN111962545A (en) * | 2020-08-10 | 2020-11-20 | 南京市园林规划设计院有限责任公司 | Soft foundation treatment method for compaction foundation soil with FRP (fiber reinforced plastic) wood piles stuck inside |
| CN116516923A (en) * | 2023-06-21 | 2023-08-01 | 兰州理工大学 | Structure for treating earthen site foundation and application method thereof |
-
2015
- 2015-09-29 CN CN201520763166.9U patent/CN205116204U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970755A (en) * | 2016-05-27 | 2016-09-28 | 宁波市交通规划设计研究院有限公司 | Construction method for prevention and treatment for sidewise slippage of soft soil roadbed |
| CN110424202A (en) * | 2019-08-20 | 2019-11-08 | 中建协和建设有限公司 | Border on the sea roadbed wave prevention structure and its construction method |
| CN110424202B (en) * | 2019-08-20 | 2021-03-30 | 中建协和建设有限公司 | Wave-proof structure of coastal roadbed and construction method thereof |
| CN111794031A (en) * | 2020-07-01 | 2020-10-20 | 浙江省衢州市交通建设集团有限公司 | Separated highway subgrade and construction method thereof |
| CN111962545A (en) * | 2020-08-10 | 2020-11-20 | 南京市园林规划设计院有限责任公司 | Soft foundation treatment method for compaction foundation soil with FRP (fiber reinforced plastic) wood piles stuck inside |
| CN116516923A (en) * | 2023-06-21 | 2023-08-01 | 兰州理工大学 | Structure for treating earthen site foundation and application method thereof |
| CN116516923B (en) * | 2023-06-21 | 2024-01-26 | 兰州理工大学 | Structure for treating earthen site foundation and application method thereof |
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