CN107975056A - The excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient - Google Patents
The excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient Download PDFInfo
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- CN107975056A CN107975056A CN201711365447.9A CN201711365447A CN107975056A CN 107975056 A CN107975056 A CN 107975056A CN 201711365447 A CN201711365447 A CN 201711365447A CN 107975056 A CN107975056 A CN 107975056A
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- China
- Prior art keywords
- pile
- stop curtain
- bored
- stake
- water
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient, including step：One：Tentatively judge cast-in-place concrete pile " expansion neck " situation；Two：Treat that bored concrete pile reaches more than the 70% of design strength and carries out churning water-stop curtain pile driving construction at adjacent bored concrete pile circle center line connecting midpoint；Three：For cast-in-place concrete pile " expansion neck " serious pile body, preliminary depth, the degree for judging concrete serious " expansion neck "；Four：Surveying setting-out, draws two adjacent bored concrete pile circle center line connecting midpoints toward 1/4~1/3 bored concrete pile radius distance point of outer shifting on the outside of foundation pit；Five：Drilling machine draws hole, deeper 30~50cm than design stake bottom absolute altitude；Six：Carry out churning water-stop curtain pile driving construction.The present invention is applicable in wide, and water-stop curtain stake intercepts water etc. in basement process, improvement of soil nature, sealing and is widely used.
Description
Technical field
The present invention relates to a kind of water-stop curtain stake piling technique, and specifically Bored Pile Filling Coefficient is excessive causes sealing
Curtain pile is difficult to the processing method of pile.
Background technology
In general, foundation pit enclosure stake, based on cast-in-place concrete pile, pore-forming mode generally impacts drilled as holes, churning driven
Pore-forming etc., for the higher area of level of ground water, excavation of foundation pit also needs to matching operation water-stop curtain stake（High-pressure rotary jet grouting pile, SMW
Engineering method stake etc.）.But for artificial earth fill, manually fill out gravelly soil, sandy soil, silt and gravel, cobble geological stratification for, due to
Rotary digging drilled as holes or impact drilled as holes need to take mud to carry out retaining wall operation, cause the presence of different degrees of collapse in work progress
Hole phenomenon so that bored concrete pile pile body fullness coefficient is excessive, pile body diameter it is bigger than design diameter go out many so that concrete fill
Stake clear spacing reduction even adjacent two to be noted to be connected, the follow-up high-pressure spiral jetting diaphragm stake pore-forming that carries out needs geological drilling rig to draw hole, into
Hole difficulty and cost are very high, and directly acting on due to concrete, and high-pressure rotary-spray pressure is difficult by concrete disintegrating, is hardly formed
Effective water-stop curtain pile body, water-stagnating effect are difficult to ensure that so that the security risk such as excavation of foundation pit stage leakage, piping, quicksand is big
Width improves.
The content of the invention
It is contemplated that the defects of overcoming the prior art, there is provided a kind of Bored Pile Filling Coefficient is excessive to cause water-stop curtain stake
It is difficult to the processing method of pile, pile body clear spacing is too small caused by solution cast-in-place concrete pile fullness coefficient is excessive, water-stop curtain
The problem that pile body is difficult to effective pore-forming and quality is difficult to ensure that.
In order to solve the above-mentioned technical problem, the present invention is realized in：
The excessive processing method for causing water-stop curtain stake to be difficult to pile of a kind of Bored Pile Filling Coefficient, it is characterised in that it is included such as
Lower step：
Step 1：According to foundation pit enclosure stake clear spacing, geological mapping report data, site operation concrete fullness coefficient actual number
It is worth size, tentatively judges cast-in-place concrete pile " expansion neck " situation；
Step 2：Treat that bored concrete pile reaches more than the 70% of design strength, according to design drawing at adjacent bored concrete pile circle center line connecting midpoint
Carry out churning water-stop curtain pile driving construction；
Step 3：For cast-in-place concrete pile " expansion neck " serious pile body, it may appear that churning machinery drilling is difficult or can not creep into
Situation, preliminary depth, the degree for judging concrete seriously " expansion neck "；
Step 4：Surveying setting-out, draws two adjacent bored concrete pile circle center line connecting midpoints toward 1/4~1/3 bored concrete pile of outer shifting on the outside of foundation pit
Radius distance point；
Step 5：Geological drilling rig, which is carried out, in the point position described in step 4 draws hole, it is deeper 30~50cm than design stake bottom absolute altitude；
Step 6：After the completion of drawing hole, rotary churning pile machine is displaced to bore position, lowering drill pipes, carry out churning water-stop curtain stake and apply
Work.
The excessive processing method for causing water-stop curtain stake to be difficult to pile of the Bored Pile Filling Coefficient, it is characterised in that：
Concrete fullness coefficient according to claim 1 belongs to normal less than 1.2.
The excessive processing method for causing water-stop curtain stake to be difficult to pile of the Bored Pile Filling Coefficient, it is characterised in that：
Drilling machine described in step 5, which draws hole, can combine casing progress.
The excessive processing method for causing water-stop curtain stake to be difficult to pile of the Bored Pile Filling Coefficient, it is characterised in that：
Rubble, sand, powder land floor are filled out, it is necessary to carry out panelling construction with reference to casing for easy collapse hole.
The excessive processing method for causing water-stop curtain stake to be difficult to pile of the Bored Pile Filling Coefficient, it is characterised in that：
If being carried out according to step 5 during drawing hole, concrete column is not found, and can omit step 5 draws hole work, directly in step
Four point position carries out water-stop curtain pile driving construction.
The beneficial effects of the invention are as follows：It is applicable in wide, water-stop curtain stake the side such as intercepts water in basement process, improvement of soil nature, sealing
Face is widely used, and under easy collapse hole geological conditions, which has a clear superiority, simple and practical, machinery used, equipment, material
It is that construction site is existing, draws materials, is easy to process.
Brief description of the drawings
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is conventional foundation pit enclosure stake schematic diagram.
Fig. 2 is local pile body " expansion neck " schematic diagram.
Fig. 3 moves schematic diagram in vitro for sealing curtain pile.
Embodiment
A kind of excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient, it includes following step
Suddenly：
As shown in Figure 1, 2：Step 1：Filled according to foundation pit enclosure stake clear spacing, geological mapping report data, site operation concrete
It is full of coefficient actual numerical value size, concrete fullness coefficient belongs to normal less than 1.2, tentatively judges cast-in-place concrete pile 1 " expansion neck "
Situation；
Step 2：Treat that bored concrete pile reaches more than the 70% of design strength, according to design drawing at adjacent bored concrete pile circle center line connecting midpoint
Carry out churning water-stop curtain pile driving construction；
Step 3：For cast-in-place concrete pile " expansion neck " serious pile body, it may appear that churning machinery drilling is difficult or can not creep into
Situation, preliminary depth, the degree for judging concrete seriously " expansion neck "；
As shown in Figure 3：Step 4：Surveying setting-out, draw two adjacent bored concrete pile circle center line connecting midpoints toward it is outer on the outside of foundation pit move 1/4~
1/3 bored concrete pile radius distance point；
Step 5：Geological drilling rig, which is carried out, in the point position described in step 4 draws hole, it is deeper 30~50cm than design stake bottom absolute altitude；Drilling machine draws
Hole can combine casing and carry out；
Step 6：After the completion of drawing hole, rotary churning pile machine is displaced to bore position, lowering drill pipes, carry out churning water-stop curtain stake and apply
Work.
Rubble, sand, powder land floor are filled out, it is necessary to carry out panelling construction with reference to casing for easy collapse hole.
If being carried out according to step 5 during drawing hole, concrete column is not found, and can omit step 5 draws hole work, directly
The point position progress water-stop curtain stake 2 for being connected on step 4 is constructed.
Claims (5)
1. the excessive processing method for causing water-stop curtain stake to be difficult to pile of a kind of Bored Pile Filling Coefficient, it is characterised in that it includes
Following steps：
Step 1：According to foundation pit enclosure stake clear spacing, geological mapping report data, site operation concrete fullness coefficient actual number
It is worth size, tentatively judges cast-in-place concrete pile " expansion neck " situation；
Step 2：Treat that bored concrete pile reaches more than the 70% of design strength, according to design drawing at adjacent bored concrete pile circle center line connecting midpoint
Carry out churning water-stop curtain pile driving construction；
Step 3：For cast-in-place concrete pile " expansion neck " serious pile body, it may appear that churning machinery drilling is difficult or can not creep into
Situation, preliminary depth, the degree for judging concrete seriously " expansion neck "；
Step 4：Surveying setting-out, draws two adjacent bored concrete pile circle center line connecting midpoints toward 1/4~1/3 bored concrete pile of outer shifting on the outside of foundation pit
Radius distance point；
Step 5：Geological drilling rig, which is carried out, in the point position described in step 4 draws hole, it is deeper 30~50cm than design stake bottom absolute altitude；
Step 6：After the completion of drawing hole, rotary churning pile machine is displaced to bore position, lowering drill pipes, carry out churning water-stop curtain stake and apply
Work.
2. the excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient according to claim 1,
It is characterized in that：Concrete fullness coefficient according to claim 1 belongs to normal less than 1.2.
3. the excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient according to claim 2,
It is characterized in that：Drilling machine described in step 5, which draws hole, can combine casing progress.
4. the excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient according to claim 3,
It is characterized in that：Rubble, sand, powder land floor are filled out, it is necessary to carry out panelling construction with reference to casing for easy collapse hole.
5. the excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient according to claim 4,
It is characterized in that：If being carried out according to step 5 during drawing hole, concrete column is not found, and can omit step 5 draws hole work
Make, directly carry out water-stop curtain pile driving construction in the point position of step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365447.9A CN107975056A (en) | 2017-12-18 | 2017-12-18 | The excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365447.9A CN107975056A (en) | 2017-12-18 | 2017-12-18 | The excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient |
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| Publication Number | Publication Date |
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| CN107975056A true CN107975056A (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711365447.9A Pending CN107975056A (en) | 2017-12-18 | 2017-12-18 | The excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681336A (en) * | 2020-12-23 | 2021-04-20 | 江苏东合南岩土科技股份有限公司 | Construction method of plastic sleeve secant pile |
Citations (5)
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|---|---|---|---|---|
| CN101255689A (en) * | 2008-03-12 | 2008-09-03 | 何世鸣 | Long helical spraying-rotary stirring soilcement purdah pile as well as construction method thereof |
| CN102286981A (en) * | 2011-07-15 | 2011-12-21 | 深圳市鸿荣轩建设工程有限公司 | Waterproof curtain and construction method thereof |
| CN105350544A (en) * | 2015-09-25 | 2016-02-24 | 中国建筑第八工程局有限公司 | Waterproof curtain used for stone-contained area and construction method thereof |
| CN205776260U (en) * | 2016-07-06 | 2016-12-07 | 昆明军龙岩土工程有限公司 | The foundation pit enclosure structure of concentric construction drill bored concrete pile in tri-axes deep mixing water-seal pile |
| CN205975626U (en) * | 2016-06-28 | 2017-02-22 | 昆明理工大学 | Strut integrated configuration with stagnant water unification in soft soil layer foundation ditch |
-
2017
- 2017-12-18 CN CN201711365447.9A patent/CN107975056A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255689A (en) * | 2008-03-12 | 2008-09-03 | 何世鸣 | Long helical spraying-rotary stirring soilcement purdah pile as well as construction method thereof |
| CN102286981A (en) * | 2011-07-15 | 2011-12-21 | 深圳市鸿荣轩建设工程有限公司 | Waterproof curtain and construction method thereof |
| CN105350544A (en) * | 2015-09-25 | 2016-02-24 | 中国建筑第八工程局有限公司 | Waterproof curtain used for stone-contained area and construction method thereof |
| CN205975626U (en) * | 2016-06-28 | 2017-02-22 | 昆明理工大学 | Strut integrated configuration with stagnant water unification in soft soil layer foundation ditch |
| CN205776260U (en) * | 2016-07-06 | 2016-12-07 | 昆明军龙岩土工程有限公司 | The foundation pit enclosure structure of concentric construction drill bored concrete pile in tri-axes deep mixing water-seal pile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681336A (en) * | 2020-12-23 | 2021-04-20 | 江苏东合南岩土科技股份有限公司 | Construction method of plastic sleeve secant pile |
| WO2022134232A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏东合南岩土科技股份有限公司 | Plastic casing secant pile construction method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180501 |