CN106759411A - Dry construction well point pipe's dmbeding method and special well point tube assembly - Google Patents
Dry construction well point pipe's dmbeding method and special well point tube assembly Download PDFInfo
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- CN106759411A CN106759411A CN201710149752.8A CN201710149752A CN106759411A CN 106759411 A CN106759411 A CN 106759411A CN 201710149752 A CN201710149752 A CN 201710149752A CN 106759411 A CN106759411 A CN 106759411A
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- well
- pore
- point pipe
- pipe
- point
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002689 soil Substances 0.000 claims abstract description 22
- 239000000706 filtrate Substances 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000004927 clay Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000004080 punching Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000009933 burial Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E02D19/10—Restraining of underground water by lowering level of ground water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention gives a kind of dry construction well point pipe's dmbeding method, comprise the following steps：Pore-forming pillar is rammed vertically and is pounded into underground；The soil in pore-forming pillar is taken out, wellhole is formed；Well-point pipe is put into pore-forming pillar, the locating support of well-point pipe is resisted against on pore-forming pillar inwall；Casing pack filtrate is protected to pore-forming；Pore-forming pillar is taken out from underground；Wellhole is sealed with clay.The wellhole of this method construction is absolutely available, does not result in invalid hole, improves well-points dewatering efficiency of construction.The present invention gives a kind of special well point tube assembly for realizing above-mentioned method for embedding, including well-point pipe, pore-forming pillar and some locating supports, and well-point pipe lower sides are provided with some filtering permeable holes；Some locating supports are sequentially fixed at outside the tube side wall of well point along the axial direction of well-point pipe.This well point tube assembly can more be applicable the requirement of dry construction well point pipe's dmbeding method, it is ensured that well-point pipe will not be inclined in follow-up work, and the thickness of filtrate is uniform.
Description
Technical field
The present invention relates to a kind of dry construction well point pipe's dmbeding method.
The invention further relates to a kind of special well point tube assembly suitable for dry construction well point pipe's dmbeding method.
Background technology
It is earth work, ground and foundation engineering during well-points dewatering is constructed for level of ground water construction environment higher
An important technique measure in construction, moisture that can be in drainage base soil, promotes soil solidifying, foundation strength is improved, while can
To reduce the lateral displacement of the slight slope soil body and sedimentation, stable side slope eliminates quicksand, reduces the protuberance of substrate soil, makes to be located at natively
Ground below lower water is avoided that the influence of underground water with basic engineering construction, there is provided relatively more dry execution conditions, can also subtract
Few earth volume, shortening duration, raising construction quality and guarantee construction safety.
Well-points dewatering construction equipment mainly includes that (bottom can be provided with filtering permeable hole or directly still further install well-point pipe
Chimney filter), water header and pumping equipment etc..Discharge manifold, then embedded well point first, effective bent union connects well-point pipe and house steward
It is logical, then pumping equipment is installed.
The embedded use water jetting of well-point pipe in common well-points dewatering construction, water jetting is divided into punching and two mistakes of pipe laying
, first using high-pressure rubber pipe be connected high-pressure hydraulic pump with hole during punching by journey, and punching pipe is sling with crane gear, and is inserted in well point
On position, using water under high pressure, and through the water spray aperture of main punching tube head, soil is washed with jet erosion rapidly, while making punching
Hole pipe is rotated up and down, and it is heavy to wash down, so as to gradually form hole in soil, after wellhole is formed, extracts punching pipe, immediately
Insertion well-point pipe.
But constructed using water jetting and had the disadvantages that：1st, water under high pressure washes away the soil of metapore wall built on the sand, easily makes
Into the soil that collapses, wellhole is set to be changed into useless hole；2nd, water under high pressure is changed into slime water and deposits to soil layer after injection punching, subsequent affect precipitation effect
Really；3rd, the hole wall of wellhole is unstable, and easily soil is mingled with filter material layer during follow-up filling filtrate, easily blocks filtering permeable hole,
Influence dewatering effect.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of good dry construction well-point pipe of rational in infrastructure, using effect
Method for embedding.
The technical problems to be solved by the invention are also to provide a kind of suitable for the special of dry construction well point pipe's dmbeding method
Use well point tube assembly.
In order to solve the above technical problems, the invention provides a kind of dry construction well point pipe's dmbeding method, including following step
Suddenly：
A) pore-forming pillar is rammed vertically in predetermined stringing position and is pounded into underground；
B) soil in pore-forming pillar is taken out, wellhole is formed；
C) well-point pipe is put into pore-forming pillar, is fixed with some locating supports in the pipe outer wall of well point, locating support against
On pore-forming pillar inwall；
D) casing pack filtrate is protected to pore-forming, the packed height of filtrate exceedes the permeable hole site of filtering of well-point pipe bottom；
E) pore-forming pillar is taken out from underground, well-point pipe is still stayed in wellhole；
F) scope of 1 meter of wellhole upper end is sealed with clay, well-point pipe upper end is stretched out outside wellhole.
Preferably, pore-forming pillar is rammed using hydraulic vibration driver in step a) and is pounded into underground.
Preferably, the soil fetched earth in machine taking-up pore-forming pillar using spiral is made in step b).
After such method, the installation of well-point pipe and the filling of filtrate are without the soil that collapses for worrying wellhole, and well
Point pipe accurate positioning, does not result in well-point pipe periphery filtrate and fills uneven problem, reduces because filtering supplement causes soil to block up
The problem of real filtering permeable hole；Compared to existing technology, the wellhole of this method construction is absolutely available, and it is invalid not result in
Hole, improves well-points dewatering efficiency of construction.
Even if after follow-up pore-forming pillar is extracted out, borehole wall is collapsed, and because filtrate and well-point pipe have been arranged in place, also will not
The normal of influence well-point pipe is used.
In order to solve the above technical problems, realizing above-mentioned dry construction well point pipe's dmbeding method present invention also offers a kind of
Special well point tube assembly, at least including well-point pipe, well-point pipe lower sides are provided with some filtering permeable holes；
Also include pore-forming pillar and some locating supports, some locating supports are sequentially fixed at along the axial direction of well-point pipe
Outside the tube side wall of well point, the external diameter of the internal diameter more than circle where locating support outline of pore-forming pillar, locating support outer wall is resisted against
On pore-forming pillar inwall.
After such structure, this well point tube assembly can more be applicable the requirement of dry construction well point pipe's dmbeding method, side
Just burial and construction；The effect of locating support may insure that well-point pipe is in the center of wellhole, it is ensured that well-point pipe is in follow-up work
Will not be inclined in work, the thickness of filtrate is uniform.
The locating support of this well point tube assembly is the frame structure of annular, is provided with locating support some through its upper and lower side
The through hole in face；After such structure, the frame structure of annular can be such that locating support is more preferably adapted to pore-forming pillar endoporus,
And locating support is provided with through hole can not influence the filling of follow-up filtrate.
The pore-forming pillar side wall upper part of this well point tube assembly is provided with two lifting eyes, and lifting rope is arranged in lifting eye；Using
After such structure, facilitate the taking-up of follow-up pore-forming pillar.
The pore-forming pillar sidewall upper of this well point tube assembly is provided with the annular boss coordinated with hydraulic vibration driver；Using so
Structure after, it is convenient to coordinate with hydraulic vibration driver, and can subsequently coordinate the taking-up of pore-forming pillar.
Brief description of the drawings
Fig. 1 is one structural representation of well-point pipe Assemblies Example of embodiment.
Fig. 2 is one top view of well-point pipe Assemblies Example locating support of embodiment.
Fig. 3 is one of one state diagram of dry construction well point pipe's dmbeding method of embodiment.
Fig. 4 is embodiment one the two of the state diagram of dry construction well point pipe's dmbeding method.
Fig. 5 is two structural representations of well-point pipe Assemblies Example of embodiment.
Specific embodiment
As shown in Fig. 1 to 2
For this well point tube assembly includes well-point pipe 2, pore-forming pillar 1 and some locating supports 3.
Pore-forming pillar 1 is one section of straight tube long, and the upper and lower opening of pore-forming pillar 1, the side wall upper part of pore-forming pillar 1 is provided with two and rises
Lifting hole(eyelet) 11, lifting rope 12 is arranged in lifting eye 11；Well-point pipe 2 is also one section of straight tube long, the chimney filter part of the bottom of well-point pipe 2,
The lower sides of well-point pipe 2 are provided with multiple filtering permeable holes 21, and outside will also wrap geotechnological filter cloth, and the percent opening of chimney filter is usually
25%-30%, before bag filter cloth, the pad muscle of the outer general also issued at intervals 4mm diameters of pipe plays overhead, distribution spacing
Usually 100mm-150mm (bottom of well-point pipe 2 can also set single filter pipe).
Well-point pipe 2 is welded with three locating supports 3 successively along its axial direction, and locating support 3 is the frame structure of annular,
Locating support 3 includes the first locating ring 31, the second locating ring 32 and five support bars 33, and the endoporus of the first locating ring 31 agrees with well point
The outer wall of pipe 2, and the first locating ring 31 and the welding of the outer wall of well-point pipe 2, the second locating ring 32 with diameter greater than the first locating ring 31,
Second locating ring 32 is enclosed within the outside of the first locating ring 31, is welded by support bar 33 between the second locating ring 32 and the first locating ring 31
Fixation is connect, be there is gap between the inside of locating support 3 of frame structure and constituted five through the upper and lower end face of locating support 3
Through hole 34, the external diameter of the internal diameter more than circle where the outline of locating support 3 of pore-forming pillar 1.
This dry construction well point pipe's dmbeding method is specifically introduced below in conjunction with above-mentioned well point tube assembly, is comprised the following steps：
A) determine predetermined stringing position, pore-forming pillar 1 is rammed vertically using hydraulic vibration driver is pounded into underground, pore-forming pillar 1
The exposed side on the ground of lifting eye 11 of side wall upper part；
B) soil in pore-forming pillar 1 is taken out using the spiral machine that fetches earth, wellhole is formed, because the soil in outside is protected by pore-forming
Pipe 1 is intercepted, the soil so wellhole will not collapse；
C) well-point pipe 2 is put into pore-forming pillar 1, the locating support 3 on the outer wall of well-point pipe 2 is born against in pore-forming pillar
On 1 inwall, locating support 3 may insure to stretch into the not run-off the straight of well-point pipe 2 in pore-forming pillar 1；
D) to filtrate 4 is filled in pore-forming pillar 1, the packed height of filtrate 4 exceedes the filtering permeable hole 21 of the bottom of well-point pipe 2
Position, in the presence of locating support 3, well-point pipe 2 is in the center of wellhole, when filtrate 4 is filled, does not result in well-point pipe
2 periphery filtrates 4 fill uneven problem, and reducing causes the problem of the stifled real filtering permeable hole 21 of soil, such as Fig. 3 because of filtering supplement
It is shown；
E) pore-forming pillar 1 is taken out from underground using the lifting rope 12 on the lifting eye 11 of pore-forming pillar 1, well-point pipe 2 is still stayed
In wellhole, due to pore-forming pillar 1 filtrate 4 can be caused to produce vibration while detaching, and then it is more close to fill filtrate 4
Real, the position of well-point pipe 2 is not influenceed by pore-forming pillar 1, and filtrate 4 has been filled with finishing, after pore-forming pillar 1 is extracted out, i.e.,
Just wellhole is collapsed soil, is not also interfered with the normal of well-point pipe 2 and is used；
F) wellhole upper end is sealed with 1 meter of scope clay 5 or other materials, well-point pipe 2 is stretched out outside wellhole, completes well point
The burial and construction of pipe 2, as shown in Figure 4.
Embodiment two
As shown in Figure 5
The present embodiment is differed only in embodiment one：The upper end of pore-forming pillar 1 ', is not required to open lifting hole(eyelet), and is provided with
Bulge loop 13 ' is engaged with the equipment of tube drawing, engaging bulge loop 13 ' can be hammered into shape with hydraulic hammer, electric vibrating etc., and equipment coordinates, and completes
The tube drawing operation of pore-forming pillar 1 '.
Above-described is only two kinds of implementation methods of the invention, it is noted that for one of ordinary skill in the art
For, under the premise without departing from the principles of the invention, some variations and modifications can also be made, these also should be regarded as belonging to this hair
Bright protection domain.
Claims (7)
1. a kind of dry construction well point pipe's dmbeding method, comprises the following steps：
A) pore-forming pillar is rammed vertically in predetermined stringing position and is pounded into underground；
B) soil in pore-forming pillar is taken out, wellhole is formed；
C) well-point pipe is put into pore-forming pillar, some locating supports is fixed with the pipe outer wall of well point, locating support is resisted against into
On the pillar inwall of hole；
D) casing pack filtrate is protected to pore-forming, the packed height of filtrate exceedes the permeable hole site of filtering of well-point pipe bottom；
E) pore-forming pillar is taken out from underground, well-point pipe is still stayed in wellhole；
F) scope of 1 meter of wellhole upper end is sealed with clay, well-point pipe upper end is stretched out outside wellhole.
2. dry construction well point pipe's dmbeding method according to claim 1, it is characterized in that：
Pore-forming pillar is rammed using hydraulic vibration driver in step a) and is pounded into underground.
3. dry construction well point pipe's dmbeding method according to claim 1, it is characterized in that：
Make the soil fetched earth in machine taking-up pore-forming pillar using spiral in step b).
4. a kind of special well point tube assembly for realizing dry construction well point pipe's dmbeding method as claimed in claim 1, at least includes
Well-point pipe, well-point pipe lower sides are provided with some filtering permeable holes；
It is characterized in that：
Also include pore-forming pillar and some locating supports, some locating supports are sequentially fixed at well point along the axial direction of well-point pipe
Outside tube side wall, the external diameter of the internal diameter more than circle where locating support outline of pore-forming pillar, locating support outer wall is resisted against pore-forming
On pillar inwall.
5. the special well point tube assembly of dry construction well point pipe's dmbeding method according to claim 4, it is characterized in that：
Locating support is the frame structure of annular, and some through holes through its upper and lower end face are provided with locating support.
6. the special well point tube assembly of dry construction well point pipe's dmbeding method according to claim 4, it is characterized in that：
The pore-forming pillar side wall upper part is provided with two lifting eyes, and lifting rope is arranged in lifting eye.
7. the special well point tube assembly of dry construction well point pipe's dmbeding method according to claim 4, it is characterized in that：
The pore-forming pillar sidewall upper is provided with the engaging bulge loop coordinated with hydraulic vibration driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149752.8A CN106759411A (en) | 2017-03-14 | 2017-03-14 | Dry construction well point pipe's dmbeding method and special well point tube assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149752.8A CN106759411A (en) | 2017-03-14 | 2017-03-14 | Dry construction well point pipe's dmbeding method and special well point tube assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106759411A true CN106759411A (en) | 2017-05-31 |
Family
ID=58962118
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710149752.8A Pending CN106759411A (en) | 2017-03-14 | 2017-03-14 | Dry construction well point pipe's dmbeding method and special well point tube assembly |
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| CN (1) | CN106759411A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098198A (en) * | 2018-08-31 | 2018-12-28 | 中国二十冶集团有限公司 | The localization method of non-fine concrete downcast well pipe |
| CN111926839A (en) * | 2020-07-13 | 2020-11-13 | 福建和盛达建筑工程有限公司 | Well point pipe structure and well point construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001115458A (en) * | 1999-10-15 | 2001-04-24 | Geo-Research Institute | Deep well construction method using earth retaining wall |
| CN101070704A (en) * | 2007-06-04 | 2007-11-14 | 上海地矿工程勘察有限公司 | Controllable one-well lamina precipitation construction method |
| CN201224887Y (en) * | 2008-07-14 | 2009-04-22 | 河北建设勘察研究院有限公司 | Well point tube for flexible soil foundation water drain consolidation |
| CN105649098A (en) * | 2016-01-21 | 2016-06-08 | 中国能源建设集团安徽电力建设第工程有限公司 | Multi-stage casing tube sand getting and boring method suitable for light well point precipitation of medium-coarse sand geology |
| CN205369282U (en) * | 2016-02-08 | 2016-07-06 | 王继龙 | Well point dewatering of sluice construction usefulness |
| CN206667275U (en) * | 2017-03-14 | 2017-11-24 | 安徽水利开发股份有限公司 | The special well point tube assembly of dry construction well point pipe's dmbeding method |
-
2017
- 2017-03-14 CN CN201710149752.8A patent/CN106759411A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001115458A (en) * | 1999-10-15 | 2001-04-24 | Geo-Research Institute | Deep well construction method using earth retaining wall |
| CN101070704A (en) * | 2007-06-04 | 2007-11-14 | 上海地矿工程勘察有限公司 | Controllable one-well lamina precipitation construction method |
| CN201224887Y (en) * | 2008-07-14 | 2009-04-22 | 河北建设勘察研究院有限公司 | Well point tube for flexible soil foundation water drain consolidation |
| CN105649098A (en) * | 2016-01-21 | 2016-06-08 | 中国能源建设集团安徽电力建设第工程有限公司 | Multi-stage casing tube sand getting and boring method suitable for light well point precipitation of medium-coarse sand geology |
| CN205369282U (en) * | 2016-02-08 | 2016-07-06 | 王继龙 | Well point dewatering of sluice construction usefulness |
| CN206667275U (en) * | 2017-03-14 | 2017-11-24 | 安徽水利开发股份有限公司 | The special well point tube assembly of dry construction well point pipe's dmbeding method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098198A (en) * | 2018-08-31 | 2018-12-28 | 中国二十冶集团有限公司 | The localization method of non-fine concrete downcast well pipe |
| CN111926839A (en) * | 2020-07-13 | 2020-11-13 | 福建和盛达建筑工程有限公司 | Well point pipe structure and well point construction method |
| CN111926839B (en) * | 2020-07-13 | 2021-08-24 | 福建和盛达建筑工程有限公司 | Well point pipe structure and well point construction method |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190620 Address after: 233010 No. 5183 Donghai Avenue, Bengbu City, Anhui Province Applicant after: Anhui Water Resources Development Co., Ltd. Address before: 233010 South of Zhanggongshan Road, Donghai Avenue, Bengbu City, Anhui Province Applicant before: Anhui Water Resources Development Co., Ltd. |
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Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |