CN106120808A - A kind of in the soft comprehensive support method moulded in clay foundation ditch - Google Patents
A kind of in the soft comprehensive support method moulded in clay foundation ditch Download PDFInfo
- Publication number
- CN106120808A CN106120808A CN201610602764.7A CN201610602764A CN106120808A CN 106120808 A CN106120808 A CN 106120808A CN 201610602764 A CN201610602764 A CN 201610602764A CN 106120808 A CN106120808 A CN 106120808A
- Authority
- CN
- China
- Prior art keywords
- casting
- pipe
- slip
- pressure slip
- foundation ditch
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
Abstract
A kind of in the soft comprehensive support method moulded in clay foundation ditch, specifically comprise the following steps that 1) judge that whether soil property character be soft to mould clay soil property according to soil property situation, determine rear excavation pit；2) when under excavation of foundation pit to Guan Liang 23 meters, make anchor cable and high-pressure slip-casting pipe, use water drilling and casing pipe hole forming technique to carry out pore-forming operation, bottom hole, carry out rotating enlarged footing process formation rotation dig stake；3) after pore-forming, sleeve pipe put into by anchor cable and high-pressure slip-casting pipe, anchor cable is fixed by anchorage cable anchoring backing plate, filler ring is had on high-pressure slip-casting pipe, bottom high-pressure slip-casting pipe putting hole, carry out a common pressure grouting 4) after a common pressure grouting waits 8 12 minutes again, after initial set, carry out secondary high-pressure slip-casting, slip casting process starts hole forming machine and retreats follow-up sleeve pipe, starts to start churning pipe and carries out anchoring section churning.Deep foundation pit support in silty clay is used rotation to dig bored concrete pile+churning anchored pile support system thus can ensure that support system is stablized by the present invention, it is ensured that the safety of engineering pile.
Description
Technical field
The present invention relates to comprehensive support method field, particularly relate in the soft comprehensive support method moulded in clay foundation ditch.
Background technology
Deep Foundation Pit Supporting Project has become a kind of comprehensive engineering.In today that building industry develops rapidly, to deep base
The research of hole supporting never stopped.China's foundation ditch the seventies in last century also ratio shallower, representativeness is that how high-rise District of Shanghai is
Building is provided with the single floor basement of degree of depth 4m, and the foundation depth that Beijing area subway engineering has reaches 20m.Experience 80, the nineties
Development, the deep-foundation pit engineering of China begins to take shape, and foundation depth, scale continue to increase, Design of Deep Foundation Pit Support and construction warp
Testing increasingly mature, country has promulgated corresponding specification simultaneously.The deep-foundation pit engineering of China enters fast development in recent years
In the stage, foundation ditch scale, the degree of depth are bigger, and construction environment is complicated and control requires higher, and deep-foundation pit engineering is faced with more acute
Challenge.
Under different soil conditions, carry out deep foundation pit construction, it is necessary to this soil property situation is fully studied, take rationally
Pattern foundation pit supporting structure measure, just can ensure that orderly the carrying out of engineering safety.The rock-soil layer good to caking property, can use dry drilling work
Skill, it is not necessary to sleeve so that pore-forming efficiency is high.And the soft the loosest caving ground of clay of moulding, or having groundwater occurrence, hole wall is not
Stable, so how this applies corresponding technique in silty clay aqueous, that silt content is the highest, how technological parameter determines,
Can ensure that stablizing of support system, it is ensured that the safety of engineering pile is a more scabrous problem.
Summary of the invention
In order to solve the problem of above-mentioned existence, the present invention provides a kind of in the soft comprehensive support method moulded in clay foundation ditch,
Use rotation to dig bored concrete pile+churning anchored pile support system deep foundation pit support in silty clay thus can ensure that the steady of support system
Fixed, it is ensured that the safety of engineering pile, for reaching this purpose, the present invention provides a kind of in the soft comprehensive support method moulded in clay foundation ditch,
Specifically comprise the following steps that
1) judge that whether soil property character be soft to mould clay soil property according to soil property situation, determine rear excavation pit；
2) when 2-3 rice under excavation of foundation pit to Guan Liang, make anchor cable and high-pressure slip-casting pipe, use water drilling and casing pipe hole forming technique to carry out
Pore-forming operation, carries out rotating enlarged footing process formation rotation bottom hole and digs stake；
3), after pore-forming, sleeve pipe put into by anchor cable and high-pressure slip-casting pipe, and anchor cable is fixed by anchorage cable anchoring backing plate, high-pressure slip-casting
There is filler ring on pipe, bottom high-pressure slip-casting pipe putting hole, carry out a common pressure grouting,；
4) carrying out secondary high-pressure slip-casting after a common pressure grouting waits 8-12 minute again after initial set, slip casting process starts pore-forming
Machine retreats follow-up sleeve pipe, starts to start churning pipe and carries out anchoring section churning.
Further improvement of the present invention, described foundation ditch one side roof part has gutter, can arrange gutter for the ease of draining.
Further improvement of the present invention, there is a casting nail described foundation ditch side, and the present invention can use soil nailing to reinforce.
The invention provides a kind of in the soft comprehensive support method moulded in clay foundation ditch, it uses rotation to dig bored concrete pile+churning
Anchored pile support system, after its excavation of foundation pit to respective depth, uses water drilling and casing pipe hole forming technique to carry out pore-forming operation, in hole
Bottom carries out rotating enlarged footing and processes, and carries out a common pressure grouting afterwards, then carries out secondary high-pressure slip-casting, treats a common pressure grouting
After initial set, starting hole forming machine and retreat follow-up sleeve pipe, start to start churning pipe and carry out anchoring section churning, above method is applicable to soft moulding
Clay foundation ditch, it can be ensured that stablizing of support system, it is ensured that the safety of engineering pile.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention；
Illustrate；
1, foundation ditch；2, stake is dug in rotation；3, soil nailing；4, high-pressure slip-casting pipe；5, anchorage cable anchoring backing plate；6, filler ring；7, anchor cable；8, draining
Ditch.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
The present invention provides a kind of in the soft comprehensive support method moulded in clay foundation ditch, and deep foundation pit support in silty clay is used rotation
Dig bored concrete pile+churning anchored pile support system thus can ensure that stablizing of support system, it is ensured that the safety of engineering pile.
As an embodiment of the present invention, the present invention provides a kind of at the soft comprehensive support method moulded in clay foundation ditch, tool
Body step is as follows:
1) judge that whether soil property character be soft to mould clay soil property according to soil property situation, determine rear excavation pit 1；
2) it is excavated to 2-3 rice under Guan Liang when foundation ditch 1, makes anchor cable 7 and high-pressure slip-casting pipe 4, use water drilling and casing pipe hole forming technique
Carry out pore-forming operation, bottom hole, carry out rotating enlarged footing process formation rotation dig stake 2；
3) after pore-forming, sleeve pipe put into by anchor cable 7 and high-pressure slip-casting pipe 8, and anchor cable 7 is fixed by anchorage cable anchoring backing plate 5, high pressure
There is filler ring 6 in Grouting Pipe 8, bottom high-pressure slip-casting pipe 4 putting hole, carry out a common pressure grouting；
4) carrying out secondary high-pressure slip-casting after a common pressure grouting waits 8-12 minute again after initial set, slip casting process starts pore-forming
Machine retreats follow-up sleeve pipe, starts to start churning pipe and carries out anchoring section churning.
As one specific embodiment of the present invention, what the present invention provided as shown in Figure 1 a kind of moulds in clay foundation ditch soft
Comprehensive support method, specifically comprises the following steps that
1) judge that whether soil property character be soft to mould clay soil property according to soil property situation, determine rear excavation pit 1, described foundation ditch side
Gutter is arranged at top, can arrange gutter for the ease of draining, and there is a casting nail described foundation ditch side, and the present invention can use soil nailing
Reinforce；
2) it is excavated to 2-3 rice under Guan Liang when foundation ditch 1, makes anchor cable 7 and high-pressure slip-casting pipe 4, use water drilling and casing pipe hole forming technique
Carry out pore-forming operation, bottom hole, carry out rotating enlarged footing process formation rotation dig stake 2；
3) after pore-forming, sleeve pipe put into by anchor cable 7 and high-pressure slip-casting pipe 8, and anchor cable 7 is fixed by anchorage cable anchoring backing plate 5, high pressure
There is filler ring 6 in Grouting Pipe 8, bottom high-pressure slip-casting pipe 4 putting hole, carry out a common pressure grouting；
4) carrying out secondary high-pressure slip-casting after a common pressure grouting waits 8-12 minute again after initial set, slip casting process starts pore-forming
Machine retreats follow-up sleeve pipe, starts to start churning pipe and carries out anchoring section churning.
The above, be only presently preferred embodiments of the present invention, is not the limit that the present invention makees any other form
System, and any amendment made according to the technical spirit of the present invention or equivalent variations, still fall within present invention model required for protection
Enclose.
Claims (3)
1., in the soft comprehensive support method moulded in clay foundation ditch, comprise the following steps that, it is characterised in that:
1) judge that whether soil property character be soft to mould clay soil property according to soil property situation, determine rear excavation pit (1)；
2) it is excavated to 2-3 rice under Guan Liang when foundation ditch (1), makes anchor cable (7) and high-pressure slip-casting pipe (4), use water drilling to become with sleeve pipe
Hole technique carries out pore-forming operation, carries out rotating enlarged footing process formation rotation and dig stake (2) bottom hole；
3) after pore-forming, sleeve pipe put into by anchor cable (7) and high-pressure slip-casting pipe (8), and anchor cable (7) is carried out by anchorage cable anchoring backing plate (5)
Fixing, high-pressure slip-casting pipe (8) has filler ring (6), bottom high-pressure slip-casting pipe (4) putting hole, carries out a common pressure grouting；
4) carrying out secondary high-pressure slip-casting after a common pressure grouting waits 8-12 minute again after initial set, slip casting process starts pore-forming
Machine retreats follow-up sleeve pipe, starts to start churning pipe and carries out anchoring section churning.
It is the most according to claim 1 a kind of in the soft comprehensive support method moulded in clay foundation ditch, it is characterised in that: described base
Hole (1) one side roof part has gutter (8).
It is the most according to claim 1 a kind of in the soft comprehensive support method moulded in clay foundation ditch, it is characterised in that: described base
There is casting nail (3) (1) side, hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602764.7A CN106120808A (en) | 2016-07-28 | 2016-07-28 | A kind of in the soft comprehensive support method moulded in clay foundation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602764.7A CN106120808A (en) | 2016-07-28 | 2016-07-28 | A kind of in the soft comprehensive support method moulded in clay foundation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106120808A true CN106120808A (en) | 2016-11-16 |
Family
ID=57290343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610602764.7A Pending CN106120808A (en) | 2016-07-28 | 2016-07-28 | A kind of in the soft comprehensive support method moulded in clay foundation ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522235A (en) * | 2016-11-01 | 2017-03-22 | 中化二建集团有限公司 | Narrow site deep foundation pit excavation supporting construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811131A (en) * | 2005-01-28 | 2006-08-02 | 曹兴明 | Enlarged head roof bolt and its construction process |
| CN101532292A (en) * | 2008-03-14 | 2009-09-16 | 上海市基础工程公司 | Construction process for jet grouting anchor rod |
| CN101644053A (en) * | 2009-09-04 | 2010-02-10 | 凌光荣 | Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope |
| KR101026188B1 (en) * | 2010-06-17 | 2011-03-31 | 토양건영 주식회사 | Pile made by using grouting method and construction method for as the same |
| CN202466594U (en) * | 2011-12-29 | 2012-10-03 | 标力建设集团有限公司 | Horizontal jet grouting soil anchoring and cast-in-place pile compound foundation pit supporting structure |
| CN105604065A (en) * | 2015-12-08 | 2016-05-25 | 西南有色昆明勘测设计（院）股份有限公司 | Foundation fit support and peat-soil deep-foundation-pit-support high-pressure jet grouting anchoring method |
| CN205329689U (en) * | 2016-01-12 | 2016-06-22 | 周同和 | Lower part enlarges compound stock of section pressure type |
-
2016
- 2016-07-28 CN CN201610602764.7A patent/CN106120808A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811131A (en) * | 2005-01-28 | 2006-08-02 | 曹兴明 | Enlarged head roof bolt and its construction process |
| CN101532292A (en) * | 2008-03-14 | 2009-09-16 | 上海市基础工程公司 | Construction process for jet grouting anchor rod |
| CN101644053A (en) * | 2009-09-04 | 2010-02-10 | 凌光荣 | Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope |
| KR101026188B1 (en) * | 2010-06-17 | 2011-03-31 | 토양건영 주식회사 | Pile made by using grouting method and construction method for as the same |
| CN202466594U (en) * | 2011-12-29 | 2012-10-03 | 标力建设集团有限公司 | Horizontal jet grouting soil anchoring and cast-in-place pile compound foundation pit supporting structure |
| CN105604065A (en) * | 2015-12-08 | 2016-05-25 | 西南有色昆明勘测设计（院）股份有限公司 | Foundation fit support and peat-soil deep-foundation-pit-support high-pressure jet grouting anchoring method |
| CN205329689U (en) * | 2016-01-12 | 2016-06-22 | 周同和 | Lower part enlarges compound stock of section pressure type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522235A (en) * | 2016-11-01 | 2017-03-22 | 中化二建集团有限公司 | Narrow site deep foundation pit excavation supporting construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110230309B (en) | Karst area bridge karst cave pile foundation construction method | |
| CN101818505B (en) | Soil pressure testing method for a cutting edge of caisson | |
| CN102605772A (en) | Construction method for revolving digging cast-in-place pile | |
| CN111042146A (en) | Construction method of deep foundation pit supporting anti-seepage system of coastal karst stratum | |
| CN102011591A (en) | Grouting process for working surface of deep well | |
| CN109898521A (en) | A kind of anchored pile supporting and construction method for foundation pit external corner | |
| CN105089023A (en) | Improving method for concrete floor of hydropower house and structure of concrete floor | |
| CN203530988U (en) | One-time forming major-diameter anchor rod foundation pit supporting structure | |
| CN106978817A (en) | A kind of Novel retaining wall based process pattern and a kind of Novel retaining wall | |
| CN109487777A (en) | A method of a reinforcing deep soft soil foundation of filling the span of a man's arms is formed using slip casing by pressure | |
| CN110144936A (en) | One kind adjoining the unilateral formwork of support pile outer wall of basement and construction method | |
| CN103343534A (en) | Closed precipitation method for foundation pit construction | |
| CN106120808A (en) | A kind of in the soft comprehensive support method moulded in clay foundation ditch | |
| CN103243721B (en) | Highrise Building With Raft Foundation and Core Walls Structure excavation construction method under Unfavorable geology condition | |
| CN112049140A (en) | Large buried depth rock crack reinforcing anti-seepage grouting process | |
| CN102220764A (en) | Deep foundation pit bracing system and construction method thereof | |
| CN204386602U (en) | A kind of surge shaft pit shaft collapses chamber backfill supplementary structure | |
| CN110747861A (en) | High-water-level deep foundation pit excavation construction method | |
| CN206233232U (en) | A kind of upper and lower part expansion type soil cement is combined pile tube | |
| CN101858074A (en) | Construction method and device for on-site water injection test | |
| CN206706748U (en) | Wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation | |
| CN102061701A (en) | Construction method for installing vertical grounding electrode by punching and pouring pile | |
| CN205399410U (en) | Dig first slip casting club -footed pile of drilling soon | |
| CN210482285U (en) | Soft soil foundation manual hole digging pile structure | |
| CN103195061B (en) | Multi-functional casing pipe part and anchor rod construction method using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |