CN111155508A - Soft soil karst foundation reinforced structure - Google Patents
Soft soil karst foundation reinforced structure Download PDFInfo
- Publication number
- CN111155508A CN111155508A CN202010105887.6A CN202010105887A CN111155508A CN 111155508 A CN111155508 A CN 111155508A CN 202010105887 A CN202010105887 A CN 202010105887A CN 111155508 A CN111155508 A CN 111155508A
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- layer
- soft soil
- fixed ground
- ground anchor
- fixed
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- 239000002689 soil Substances 0.000 title claims abstract description 33
- 239000004576 sand Substances 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims 3
- 238000011105 stabilization Methods 0.000 claims 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Foundations (AREA)
Abstract
The invention discloses a soft soil karst foundation reinforcing structure which comprises a soft soil layer, wherein a base layer is arranged at the upper end of the soft soil layer, a restraint net is arranged at the upper end of the base layer, a gravel layer is laid at the upper end of the restraint net, a connecting plate is arranged on the upper surface of the gravel layer, a fixed ground anchor is inserted into the inner side of the connecting plate, a fine sand layer is laid on the outer side of the fixed ground anchor, the upper end of the fixed ground anchor is flush with the fine sand layer, a supporting rod is welded at the upper end of the fixed ground anchor, a positioning frame is arranged at the upper end of the supporting rod, a transverse supporting rod is arranged on the outer side of the positioning frame, and a concrete. According to the invention, the plurality of fixed ground anchors can be connected through the connecting plates, so that when the fixed position of a single fixed ground anchor collapses, the fixed ground anchor can be prevented from displacing through the limitation of the connecting plates, the foundation on the upper layer can be kept still, the local settlement of the foundation can be avoided, the arranged fine sand layer can flow into the gravel layer, and the gap in the gravel layer is filled.
Description
Technical Field
The invention relates to the technical field of foundation reinforcement, in particular to a soft soil karst foundation reinforcement structure.
Background
In order to secure the safety of the ground facilities, as one of core parts of the building, the settlement control of the deformation of the foundation is very important. The soft soil subgrade is easy to generate larger settlement under the external pressure, and the subgrade is easy to crack when the subgrade is locally settled, thereby causing serious influence on the aboveground facilities.
The reinforcing pile that current soft soil karst foundation reinforced structure set up inserts the ground end and stabilizes the structure of ground, but the associativity is less between a plurality of reinforcing piles, leads to reinforcing pile to appear the skew easily, and then produces chain reaction, influences the stability of a plurality of reinforcing piles, leads to the ground local sinking collapse to appear, and then influences facility on the ground.
Disclosure of Invention
The invention aims to provide a soft soil karst foundation reinforcing structure to solve the problems that a plurality of reinforcing piles are small in relevance, so that the reinforcing piles are prone to deflection, chain reaction is generated, stability of the plurality of reinforcing piles is affected, local sinking and collapse of a foundation are caused, and ground facilities are affected.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a soft soil karst foundation reinforced structure, including soft soil layer, the upper end on aforementioned soft soil layer is provided with the basic unit, the upper end of aforementioned basic unit is provided with the restraint net, the gravel layer has been laid to the upper end of aforementioned restraint net, the upper surface on aforementioned gravel layer is provided with the connecting plate, the inboard of aforementioned connecting plate is pegged graft and is had the fixed ground anchor, thin sand layer has been laid in the outside of aforementioned fixed ground anchor, the upper end and the thin sand layer of aforementioned fixed ground anchor flush, the upper end welding of aforementioned fixed ground anchor has the bracing piece, the upper end of aforementioned bracing piece is provided with the positioning frame, aforementioned positioning frame's the outside is provided with transverse strut, concrete layer has been pour with transverse strut's the outside.
Preferably, the lower end of the fixed ground anchor penetrates through the gravel layer, the restraining net and the base layer in sequence, and the bottom end of the fixed ground anchor is inserted into the soft soil layer.
Preferably, the fixed ground anchors are arranged along the direction of the connecting plate, and the interval between the fixed ground anchors is not more than 1 m.
Preferably, the thickness of the base layer is not less than 50cm, and the lower end of the fixed ground anchor is inserted into the soft soil layer by not less than 2 m.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
this pine weak soil karst foundation reinforced structure: can connect many fixed ground anchors through the connecting plate that sets up, when making the fixed department of single fixed ground anchor take place to sink, can avoid the fixed ground anchor to take place the displacement through the restriction of connecting plate, make the ground on upper strata can remain motionless, avoid the ground part to take place to subside, the fine sand layer of setting can flow in the gravel layer, fill the clearance in the gravel layer, and the concrete can permeate towards in the gravel layer when pouring, make the gravel layer more firm, guarantee the stability of whole ground, prevent that the fracture from appearing in the concrete placement layer of concrete placement upper end, improve the service life of ground.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a left side view of the concrete layer of the present invention.
Description of reference numerals: 10-soft soil layer; 11-a base layer; 12-a constraining net; 13-a gravel layer; 14-a connecting plate; 15-fixing the ground anchor; 16-fine sand layer; 17-a support bar; 18-a positioning frame; 19-a transverse strut; 20-concrete layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1-2, the present invention provides a technical solution: a soft soil karst foundation reinforcing structure comprises a soft soil layer 10, a base layer 11 is arranged at the upper end of the soft soil layer 10, a restraint net 12 is arranged at the upper end of the base layer 11, a gravel layer 13 is laid at the upper end of the restraint net 12, a connecting plate 14 is arranged on the upper surface of the gravel layer 13, a fixed ground anchor 15 is inserted into the inner side of the connecting plate 14, a fine sand layer 16 is laid on the outer side of the fixed ground anchor 15, the fine sand layer 16 is composed of smaller sand grains and can flow into gaps of the gravel layer 13 to fill the gaps in the gravel layer 13, the upper end of the fixed ground anchor 15 is flush with the fine sand layer 16, the lower end of the fixed ground anchor 15 sequentially penetrates through the gravel layer 13, the restraint net 12 and the base layer 11, the bottom end of the fixed ground anchor 15 is inserted into the soft soil layer 10, the fixed ground anchor 15 limits the main body of a foundation to avoid landslide or landslide, the fixed ground anchor 15 is arranged along the direction of the connecting plate 14, the interval between, the connecting plate 14 can connect a plurality of fixed ground anchors 15, so that when the fixed position of a single fixed ground anchor 15 collapses, the fixed ground anchor 15 can be prevented from displacing through the limitation of the connecting plate 14, the foundation can be kept still, the local settlement of the foundation can be avoided, the thickness of the base layer 11 is not less than 50cm, the lower end of the fixed ground anchor 15 is inserted into the soft soil layer 10 to be not less than 2m, the stability of the fixed ground anchor 15 is ensured, the upper end of the fixed ground anchor 15 is welded with the supporting rod 17, the upper end of the supporting rod 17 is provided with the positioning frame 18, the outer side of the positioning frame 18 is provided with the transverse supporting rod 19, the concrete layer 20 is poured on the outer sides of the positioning frame 18 and the transverse supporting rod 19, the shear strength of the concrete layer 20 is improved by the positioning frame 18 and the transverse supporting rod 19, the cracking of the concrete is avoided, after the concrete is solidified, the gravel layer 13 is more stable, and the stability of the whole foundation is ensured.
The invention is implemented as follows: the soft soil layer 10 is a soft soil karst matrix, a base layer 11 is formed by compacting the soft soil layer 10, a layer of restraint net 12 is laid on the upper surface of the base layer 11, a gravel layer 13 is laid, a connecting plate 14 is placed on the gravel layer 13, a fixed ground anchor 15 penetrates through a hole reserved in the connecting plate 14, the ground anchor is compacted towards the lower part so as to penetrate through the gravel layer 13, the restraint net 12 and the base layer 11 in sequence and then be inserted into the soft soil layer 10, a supporting rod 17 is welded, a fine sand layer 16 is laid, the fine sand layer 16 is leveled and compacted so that fine sand can flow into the gravel layer 13, a positioning frame 18 and a transverse supporting rod 19 are welded above the supporting rod 17, a concrete layer 20 can be formed when concrete is poured, the concrete gradually permeates towards the fine sand layer 16 and the gravel layer 13 when the concrete is tamped, and after the concrete is solidified, making the gravel layer 13 more stable.
Of course, the above is only a specific application example of the present invention, and other embodiments of the present invention are also within the scope of the present invention.
Claims (4)
1. The utility model provides a soft soil karst foundation reinforced structure, includes soft soil layer (10), its characterized in that: the upper end of soft soil layer (10) is provided with basic unit (11), the upper end of basic unit (11) is provided with restraint net (12), gravel layer (13) have been laid to the upper end of restraint net (12), the upper surface of gravel layer (13) is provided with connecting plate (14), the inboard of connecting plate (14) is pegged graft and is had fixed ground anchor (15), fine sand layer (16) have been laid in the outside of fixed ground anchor (15), the upper end and fine sand layer (16) of fixed ground anchor (15) flush, the upper end welding of fixed ground anchor (15) has bracing piece (17), the upper end of bracing piece (17) is provided with positioning frame (18), the outside of positioning frame (18) is provided with horizontal branch (19), concrete layer (20) have been pour with the outside of horizontal branch (19) to positioning frame (18).
2. The soft soil karst foundation stabilization structure of claim 1, characterized in that: the lower extreme of fixed earth anchor (15) runs through gravel layer (13), restraint net (12) and basic unit (11) in proper order, the bottom of fixed earth anchor (15) is inserted in soft soil layer (10).
3. The soft soil karst foundation stabilization structure of claim 1, characterized in that: the fixed ground anchors (15) are arranged along the direction of the connecting plate (14), and the interval between the fixed ground anchors (15) is not more than 1 m.
4. The soft soil karst foundation stabilization structure of claim 1, characterized in that: the thickness of the base layer (11) is not less than 50cm, and the lower end of the fixed ground anchor (15) is inserted into the soft soil layer (10) and is not less than 2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105887.6A CN111155508A (en) | 2020-02-20 | 2020-02-20 | Soft soil karst foundation reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105887.6A CN111155508A (en) | 2020-02-20 | 2020-02-20 | Soft soil karst foundation reinforced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111155508A true CN111155508A (en) | 2020-05-15 |
Family
ID=70566042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010105887.6A Pending CN111155508A (en) | 2020-02-20 | 2020-02-20 | Soft soil karst foundation reinforced structure |
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| Country | Link |
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| CN (1) | CN111155508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457781A (en) * | 2022-01-26 | 2022-05-10 | 西安建筑科技大学 | Salinized soil foundation reinforcement structure |
Citations (13)
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|---|---|---|---|---|
| JPS5214011A (en) * | 1975-07-17 | 1977-02-02 | Nikken Kk | Method of reinforcing and improving poor subsoil |
| KR100657613B1 (en) * | 2006-05-16 | 2006-12-14 | 이더테크놀로지(주) | Device for fortifying supporting force of weak land having geotextile installed on piles |
| KR20090084054A (en) * | 2008-01-31 | 2009-08-05 | 한국철도기술연구원 | Structure of concrete track reinforced by piled raft foundation and its constructing and maintaining method |
| KR100933642B1 (en) * | 2009-06-04 | 2009-12-23 | 주식회사 한국종합기술 | A reinforcement method and that of structure using very soft ground |
| WO2010059016A2 (en) * | 2008-11-24 | 2010-05-27 | 에이치엔티환경건설개발주식회사 | Construction method for improving soft ground |
| CN102312424A (en) * | 2011-07-04 | 2012-01-11 | 绍兴文理学院 | Soft soil foundation long-concrete short-gravel (LCSG) pile and preloading combined treatment method and device thereof |
| CN205046541U (en) * | 2015-10-16 | 2016-02-24 | 苏州中材建设有限公司 | Composite foundation |
| KR101608284B1 (en) * | 2015-11-02 | 2016-04-01 | (주)동남엔지니어링 | Soft ground reinforced structure |
| CN205475197U (en) * | 2015-12-30 | 2016-08-17 | 中铁第四勘察设计院集团有限公司 | Soft native karst foundation stabilization structure |
| CN205501982U (en) * | 2016-04-20 | 2016-08-24 | 浙江华东工程建设管理有限公司 | Slope soft foundation reinforcement structure |
| KR101843379B1 (en) * | 2017-06-20 | 2018-05-14 | 이승일 | Apparatus and method for reinforcing soft ground |
| CN207878440U (en) * | 2018-01-04 | 2018-09-18 | 长沙理工大学 | A kind of reinforcement composite foundation structure suitable for soft soil foundation |
| CN212001036U (en) * | 2020-02-20 | 2020-11-24 | 中国电建集团贵阳勘测设计研究院有限公司 | Soft soil karst foundation reinforced structure |
-
2020
- 2020-02-20 CN CN202010105887.6A patent/CN111155508A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5214011A (en) * | 1975-07-17 | 1977-02-02 | Nikken Kk | Method of reinforcing and improving poor subsoil |
| KR100657613B1 (en) * | 2006-05-16 | 2006-12-14 | 이더테크놀로지(주) | Device for fortifying supporting force of weak land having geotextile installed on piles |
| KR20090084054A (en) * | 2008-01-31 | 2009-08-05 | 한국철도기술연구원 | Structure of concrete track reinforced by piled raft foundation and its constructing and maintaining method |
| WO2010059016A2 (en) * | 2008-11-24 | 2010-05-27 | 에이치엔티환경건설개발주식회사 | Construction method for improving soft ground |
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| CN102312424A (en) * | 2011-07-04 | 2012-01-11 | 绍兴文理学院 | Soft soil foundation long-concrete short-gravel (LCSG) pile and preloading combined treatment method and device thereof |
| CN205046541U (en) * | 2015-10-16 | 2016-02-24 | 苏州中材建设有限公司 | Composite foundation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457781A (en) * | 2022-01-26 | 2022-05-10 | 西安建筑科技大学 | Salinized soil foundation reinforcement structure |
| CN114457781B (en) * | 2022-01-26 | 2023-11-03 | 西安建筑科技大学 | Saline soil foundation reinforcing structure |
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