CN206220104U - A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system - Google Patents
A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system Download PDFInfo
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- CN206220104U CN206220104U CN201621289903.7U CN201621289903U CN206220104U CN 206220104 U CN206220104 U CN 206220104U CN 201621289903 U CN201621289903 U CN 201621289903U CN 206220104 U CN206220104 U CN 206220104U
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- soil
- foundation ditch
- frozen soil
- soil nailing
- frozen
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system, it is characterised in that including several along foundation ditch（1）The freezing pipe that surrounding ground is pierced vertically（2）, several are by foundation ditch（1）Side slope is pierced and in regularly arranged soil nailing（3）, and located at foundation ditch（1）Concrete slab on side slope surface（4）；In the freezing pipe（2）Lower end, waterline located underground（5）To have perpendicular to foundation ditch（1）The Frozen Soil Cylinder mine dam of surrounding ground（6）, waterline located underground（5）Following soil nailing（3）Stretch into Frozen Soil Cylinder mine dam in end（6）Interior anchoring；The utility model has the advantage of, soil nailing Main Function is to form compound gravity retaining wall with surrounding soil, for reinforcing the excavation slope soil body, Frozen Soil Cylinder mine dam Main Function is to prevent underground water from flowing into inside foundation ditch, and concrete slab Main Function is to prevent rainwater from being washed away to foundation ditch top layer.
Description
Technical field
The utility model is related to a kind of soil nailed wall retaining structure system, is related to a kind of Frozen Soil Cylinder Composition Soil Nailing Walls knot
Structure system.
Background technology
Plate brad supporting is to be buried in the earth soil nailing, and with certain space arrange slender rod piece, by with soil body contact surface
On cohesive force and frictional force, the passive tension of soil nailing, so that a kind of structure of soil stabilization, so soil nailing has necessarily to soil property
Requirement, i.e., during plate brad supporting is only applicable to certain self-reliance and has a soil layer of larger frictional force, such as plastic state with
On cohesive soil, in having a sand of larger frictional resistance.But mud and saturation soft layer without self-stable ability are cannot be used for,
Should not be used in water content abundant fine sand layer and sandy gravel layer.
Soil nailing wall technology was used for French slope retaining in 1972 earliest, and the 70's ends developed into China.Plate brad supporting
Combined bolting and shotcrete is also called, is divided into spray Anchor Care slope, driving into type suspension roof support and into three kinds of forms of cellular type suspension roof support.In natural soil layer
In, mainly based on drill-pouring, tension member has bar reinforcement, high-strength steel tow and steel strand wires etc. to anchoring process.Plate brad supporting
Structure has a light structure, flexible big, the features such as ductility is good, is widely used in deep-foundation pit engineering.
The advantage of plate brad supporting is：Speed of application is fast, and material materials are few；Construction equipment light and flexible, process is simple；Construction
Required place is smaller, influences small to adjacent architectural around, and energy Nearby Structure carries out excavation of foundation pit；It is safe, can be according to existing
Soil property situation and monitoring data when field is excavated, change soil nailing spacing and length at any time, and reinforcement measure is taken in time；Cost compared with
Low, according to statistics, foundation ditch of the cutting depth within 10m, plate brad supporting can reduce investment outlay about 30% than other support forms.
Have the disadvantage：Uncertain factor is more in Designing of Earth Nail Timbering construction；There are underground utilities or building near foundation ditch
When basic, may be interfered with each other in work progress；Below level of ground water or water content abundant soft layer, chiltern soil layer
In, pore-forming is difficult, and surface layer pressure and soil nailing internal force can substantially increase, and be easily caused landcreep or the hole that collapses.Existing soil-nail wall support is present
Subject matter：Because soil nail wall does not have water-retaining capacity, the deep foundation pit support for level of ground water higher than bottom of foundation ditch, soil nail wall
Method for protecting support cannot be applied.
The content of the invention
The utility model purpose is：A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system is provided, soil nailing is played
The advantage that wall supporting construction speed is fast, support cost is low, solves the problems, such as that soil nail wall cannot the aqueous foundation ditch of supporting.
The technical solution of the utility model is：A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system, including several
Along the freezing pipe that foundation ditch surrounding ground is pierced vertically, several are pierced and in regularly arranged soil nailing, Yi Jishe by excavation slope
Concrete slab on excavation slope is domatic；In the freezing pipe lower end, waterline located underground having perpendicular to base
The Frozen Soil Cylinder mine dam of surrounding ground is cheated, anchor in Frozen Soil Cylinder mine dam is stretched into the soil nailing end below waterline located underground
Gu.
As preferred technical scheme, bar-mat reinforcement is provided with concrete slab.
Used as preferred technical scheme, the soil nailing pierces depth below foundation ditch slip-crack surface.
Used as preferred technical scheme, the Frozen Soil Cylinder mine dam top intersects with the foundation ditch slip-crack surface.
The construction method of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system of the present utility model is as follows：
The first step：Set freezing pipe on foundation ditch periphery, freezing pipe start to freeze after installing and phreatic line with
Lower formation Frozen Soil Cylinder mine dam, freezes depth capacity for 3 meters under foundation ditch；
Second step is stage excavation foundation ditch, to be excavated per layer soil body and set soil nailing after finishing；
3rd step is to repair slope, and gunite concrete protection surface layer is done to pattern foundation pit supporting structure surface layer（Concrete slab）.
The utility model has the advantages that：
1. the utility model is mainly used to deep basal pit of the supporting level of ground water higher than bottom of foundation ditch no more than 3 meters, soil nailing master
It is to form compound gravity retaining wall with surrounding soil to act on, for reinforcing the excavation slope soil body, Frozen Soil Cylinder mine dam master
It is to prevent underground water from flowing into inside foundation ditch to act on, and concrete slab Main Function is to prevent rainwater from being washed away to foundation ditch top layer.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Fig. 1 is structural representation of the present utility model；
Wherein：1 foundation ditch, 2 freezing pipes, 3 soil nailings, 4 concrete slabs, 5 phreatic lines, 6 Frozen Soil Cylinder mine dams, 7 bases
Hole slip-crack surface.
Specific embodiment
Embodiment：Shown in reference picture 1, a kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system, including several are along base
The freezing pipe 2 that 1 surrounding ground is pierced vertically is cheated, several are pierced and in regularly arranged soil nailing 3, Yi Jishe by the side slope of foundation ditch 1
Concrete slab 4 on the side slope surface of foundation ditch 1；In the lower end of freezing pipe 2, waterline located underground 5 having perpendicular to base
The Frozen Soil Cylinder mine dam 6 of 1 surrounding ground is cheated, Frozen Soil Cylinder mine dam is stretched into soil nailing 3 end of the waterline located underground below 5
Anchoring in 6.
The utility model is provided with bar-mat reinforcement in the concrete slab 4, and soil nailing 3 pierces depth positioned at foundation ditch slip-crack surface below 7,
The top of Frozen Soil Cylinder mine dam 6 intersects with foundation ditch slip-crack surface 7.
Construction technology process is as follows：
Set freezing hole → installation freezing pipe → beginning freezing curtain and freeze → stage excavation soil layer → finishing side slope → soil
Nail pore-forming → soil nailing reinforcement fabrication, processing → reinforcing bar insert → slip casting → slab reinforcement net establishment → gunite concrete → setting
Anti-, drainage measure → freezing curtain waterwall safeguard freeze → Underground Construction → stopping freezes → backfill.
Above-described embodiment only to illustrate technology design of the present utility model and feature, technique is familiar with its object is to allow
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (4)
1. a kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system, it is characterised in that including several along foundation ditch（1）Circumferentially
The freezing pipe that face pierces vertically（2）, several are by foundation ditch（1）Side slope is pierced and in regularly arranged soil nailing（3）, and be located at
Foundation ditch（1）Concrete slab on side slope surface（4）；
In the freezing pipe（2）Lower end, waterline located underground（5）To have perpendicular to foundation ditch（1）The frozen soil of surrounding ground
Curtain mine dam（6）, waterline located underground（5）Following soil nailing（3）Stretch into Frozen Soil Cylinder mine dam in end（6）Interior anchoring.
2. Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system according to claim 1, it is characterised in that in concrete surface
Plate（4）Inside it is provided with bar-mat reinforcement.
3. Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system according to claim 1, it is characterised in that the soil nailing
（3）Depth is pierced positioned at foundation ditch slip-crack surface（7）Below.
4. Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system according to claim 1, it is characterised in that the frozen soil curtain
Curtain mine dam（6）Top and the foundation ditch slip-crack surface（7）Intersect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621289903.7U CN206220104U (en) | 2016-11-29 | 2016-11-29 | A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621289903.7U CN206220104U (en) | 2016-11-29 | 2016-11-29 | A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206220104U true CN206220104U (en) | 2017-06-06 |
Family
ID=58787194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621289903.7U Expired - Fee Related CN206220104U (en) | 2016-11-29 | 2016-11-29 | A kind of Frozen Soil Cylinder Foundation Supported with Composite Soil Nailing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206220104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258584A (en) * | 2019-06-20 | 2019-09-20 | 中国建筑第八工程局有限公司 | Excavation slope soil nailing pipe walled protection structure and construction method |
| CN112575790A (en) * | 2020-12-03 | 2021-03-30 | 中铁建设集团基础设施建设有限公司 | Foundation pit frozen soil retaining wall device and freezing method |
-
2016
- 2016-11-29 CN CN201621289903.7U patent/CN206220104U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258584A (en) * | 2019-06-20 | 2019-09-20 | 中国建筑第八工程局有限公司 | Excavation slope soil nailing pipe walled protection structure and construction method |
| CN110258584B (en) * | 2019-06-20 | 2024-01-30 | 中建八局科技建设有限公司 | Foundation pit side slope soil nailing pipe wall enclosure structure and construction method |
| CN112575790A (en) * | 2020-12-03 | 2021-03-30 | 中铁建设集团基础设施建设有限公司 | Foundation pit frozen soil retaining wall device and freezing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20191129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |