CN204163092U - Dewatering well bamboo cage chimney filter - Google Patents
Dewatering well bamboo cage chimney filter Download PDFInfo
- Publication number
- CN204163092U CN204163092U CN201420527663.4U CN201420527663U CN204163092U CN 204163092 U CN204163092 U CN 204163092U CN 201420527663 U CN201420527663 U CN 201420527663U CN 204163092 U CN204163092 U CN 204163092U
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- China
- Prior art keywords
- chimney filter
- bamboo
- filter
- bamboo cage
- cage
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to foundation pit dewatering construction field, be specially a kind of dewatering well bamboo cage chimney filter, solve existing precipitation chimney filter cost high, the difficult problems such as infiltration difference and chimney filter damage, bamboo cage chimney filter is connected and composed by some joint bamboo cage chimney filter unit, often saving bamboo cage chimney filter unit comprises along the vertically disposed longitudinal dowel in dewatering well borehole wall interval, from top to bottom interval is welded in the inner ring steel bar stress inside longitudinal dowel, longitudinal dowel and inner ring steel bar stress form chimney filter steel frame, chimney filter steel frame two ends are welded with the steel loop hoop be positioned at outside longitudinal dowel, between adjacent longitudinal dowel, vertical solid matter is banded with bamboo cane filter stand, every root bamboo cane filter stand and all inner ring steel bar stresses are fixed, every root bamboo cane filter stand two ends are stuck in steel loop hoop, whole bamboo cage chimney filter is coated with screen pack.Ensure that chimney filter is not destroyed, ensure precipitation osmotic effect again, greatly reduce chimney filter construction cost, convenient and flexible installation, have that technique is simple, advanced technology, the advantage such as practical.
Description
Technical field
The utility model relates to foundation pit dewatering construction field, is specially a kind of dewatering well bamboo cage chimney filter.
Background technology
China is in infrastructure high-tide period; most construction all relates to foundation pit dewatering well precipitation; effective precipitation guarantees excavation of foundation pit precondition; then dewatering effect depends mainly on precipitation chimney filter; with or without sandpipe, reinforcing cage chimney filter and bridge-type steel chimney filter, in practice of construction, all there is shortcomings different separately in tradition precipitation chimney filter; wherein not only easily damage without sandpipe, and infiltration weak effect.Reinforcing cage chimney filter is not only processed long in time limit, and backfill filtrate lateral pressure is easily destroyed filter screen and causes disused well.Bridge-type steel chimney filter not only cost is large, and the cross-section of river is little and affect dewatering effect.Also there is no at present not only economy but also the chimney filter of dewatering effect can be ensured.
Summary of the invention
Existing precipitation chimney filter cost is high in order to solve for the utility model, infiltration difference and chimney filter such as easily to damage at the difficult problem, provides a kind of low cost, good penetrability, non-damageable dewatering well bamboo cage chimney filter.
The utility model adopts following scheme to realize: dewatering well bamboo cage chimney filter, bamboo cage chimney filter is connected and composed successively by some joint bamboo cage chimney filter unit, often saving bamboo cage chimney filter unit comprises along the vertically disposed longitudinal dowel in dewatering well borehole wall interval, from top to bottom interval is welded in the inner ring steel bar stress inside longitudinal dowel, longitudinal dowel and inner ring steel bar stress form chimney filter steel frame, chimney filter steel frame two ends are welded with the steel loop hoop be positioned at outside longitudinal dowel, between adjacent longitudinal dowel, vertical solid matter is banded with bamboo cane filter stand, every root bamboo cane filter stand and all inner ring steel bar stresses are fixed, every root bamboo cane filter stand two ends are stuck in steel loop hoop, whole bamboo cage chimney filter is coated with screen pack.
Described screen pack adopts and selects 100 orders, 80 orders or 60 object nylon leaching nets according to aquifer particle.
Welded by steel loop hoop between described adjacent bamboo cage chimney filter unit, reliably easy to connect, site operation is convenient.
Adopt structure design of the present utility model, first inner ring steel bar stress and longitudinal dowel is adopted to make the chimney filter steel frame with some strength, ensure that chimney filter is not squeezed bad by earth lateral pressure, chimney filter steel frame two ends weldable steel hoop, namely be convenient to be welded to connect between adjacent segment chimney filter, again can bamboo cane filter stand hoop in chimney filter steel frame; Then with iron wire, the colligation of bamboo cane filter stand solid matter is formed bamboo cage on inner ring steel bar stress, not only realize the effective permeability energy of chimney filter, and reduce construction cost; Last according to formation gain size, be wrapped with nylon filter often saving outside bamboo cage chimney filter unit, during installation, welding carried out to upper and lower two joint bamboo cage chimney filter unit and form overall chimney filter, stop chimney filter damage.
Compared with prior art, the utility model has the following advantages:
1) adopt reinforcing bar to make the skeleton with some strength both to reduce costs, ensure that again chimney filter is not squeezed bad by earth lateral pressure;
2) on chimney filter steel frame, colligation fine bamboo strip forms bamboo cage joint, realizes chimney filter effective permeability energy;
3) when installing, welding is carried out to the steel loop hoop of upper and lower two joint bamboo cage chimney filter unit and forms overall chimney filter, stop chimney filter and damage,
In a word, the utility model makes full use of the intensity of cage of reinforcement, the effective permeability of bamboo cage and adjacent bamboo cage chimney filter unit and adopts the advantages such as steel loop hoop firm welding, ensure that chimney filter is not destroyed, ensure precipitation osmotic effect again, greatly reduce chimney filter construction cost, convenient and flexible installation, has that technique is simple, advanced technology, an advantage such as practical.
This technology is adopted to have successfully completed Shenyang Metro No. 9 line 7 Biao Wang river way stations and interval ventilating shaft dewatering well chimney filter, fill up the blank of rainfall in China well screen high osmosis and low-cost technologies, achieve good economic benefit and social benefit, this practicality is newly applicable to all dewatering well chimney filters.
Accompanying drawing explanation
Fig. 1 is flat cutting schematic diagram of the present utility model;
To be that the utility model is perpendicular cut open schematic diagram to Fig. 2;
In figure: 1-inner ring steel bar stress; The longitudinal dowel of 2-; ; 3-steel loop hoop; 4-bamboo cane filter stand; 5-screen pack.
Detailed description of the invention
Dewatering well bamboo cage chimney filter, as Fig. 1, shown in 2, bamboo cage chimney filter is connected and composed successively by some joint bamboo cage chimney filter unit, often save bamboo cage chimney filter unit and comprise vertically disposed longitudinal dowel 2 along dewatering well borehole wall interval, from top to bottom interval is welded in the inner ring steel bar stress 1 inside longitudinal dowel, longitudinal dowel and inner ring steel bar stress form chimney filter steel frame, chimney filter steel frame two ends are welded with the steel loop hoop 3 be positioned at outside longitudinal dowel, between adjacent longitudinal dowel, vertical solid matter is banded with bamboo cane filter stand 4, every root bamboo cane filter stand and all inner ring steel bar stresses are fixed, every root bamboo cane filter stand two ends are stuck in steel loop hoop, whole bamboo cage chimney filter is coated with screen pack 5.Screen pack 5 adopts selects 100 orders, 80 orders, 60 object nylon leaching nets according to aquifer particle; Welded by steel loop hoop 3 between adjacent bamboo cage chimney filter unit.
During concrete enforcement, comprise the following steps:
Step one, chimney filter steel frame are processed
A, become φ 400 inner ring steel bar stress with φ 16 steel bar meter; B, using long 4 meters 8 φ 16 reinforcing bars as longitudinal dowel, inner ring steel bar stress to be welded together by 50CM spacing; C, at chimney filter steel frame two ends outside weldings steel loop hoop.
Step 2, bamboo cage colligation
A, the end-grain cutting of φ 16 bamboo two is put down, length is 4 meters; B, with iron wire, bamboo is tied up on the inner ring steel bar stress of chimney filter steel frame, two ends are stuck in steel loop hoop.
Step 3, chimney filter connect
A, outside bamboo cage, twine nylon filter; When B, installation, between two bamboo cage chimney filters, be welded into entirety by steel loop hoop.
case history
This dewatering well bamboo cage chimney filter is used in Shenyang Metro No. 9 line 7 Biao Wang river way stations and the construction of interval ventilating shaft dewatering well chimney filter, and wherein ventilating shaft precipitation well depth 42 meters adopts φ 16 steel bar meter chimney filter steel frame, guarantees that chimney filter is not squeezed bad by soil pressure.On chimney filter steel frame, colligation bamboo raft forms filter stand, has both defined effective diafiltration gap, and has again reduced construction cost.Outside bamboo cage, twine nylon leaching net, and be connected into entirety by steel loop hoop electrode holder chimney filter, namely ensure dewatering effect, ensure again easy for installation.Prove this advanced technology, methodological science is reasonable.
This utility model has been generalized to other foundation pit dewatering projects, greatly reduces construction cost, improves construction efficiency, and ensure dewatering effect, achieve good economic benefit and social benefit, facts have proved, this technical scheme is practical, and promotion prospect is good.
Claims (3)
1. a dewatering well bamboo cage chimney filter, it is characterized in that bamboo cage chimney filter is connected and composed successively by some joint bamboo cage chimney filter unit, every section of bamboo cage chimney filter unit comprises vertically disposed longitudinal dowel (2) along dewatering well borehole wall interval, from top to bottom interval is welded in the inner ring steel bar stress (1) inside longitudinal dowel, longitudinal dowel and inner ring steel bar stress form chimney filter steel frame, chimney filter steel frame two ends are welded with the steel loop hoop (3) be positioned at outside longitudinal dowel, between adjacent longitudinal dowel, vertical solid matter is banded with bamboo cane filter stand (4), every root bamboo cane filter stand and all inner ring steel bar stresses are fixed, every root bamboo cane filter stand two ends are stuck in steel loop hoop, whole bamboo cage chimney filter is coated with screen pack (5).
2. dewatering well bamboo cage chimney filter according to claim 1, is characterized in that screen pack (5) adopts and selects 100 orders, 80 orders or 60 object nylon leaching nets according to aquifer particle.
3. dewatering well bamboo cage chimney filter according to claim 1 and 2, is characterized in that being welded by steel loop hoop (3) between adjacent bamboo cage chimney filter unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527663.4U CN204163092U (en) | 2014-09-15 | 2014-09-15 | Dewatering well bamboo cage chimney filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527663.4U CN204163092U (en) | 2014-09-15 | 2014-09-15 | Dewatering well bamboo cage chimney filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204163092U true CN204163092U (en) | 2015-02-18 |
Family
ID=52536797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527663.4U Expired - Fee Related CN204163092U (en) | 2014-09-15 | 2014-09-15 | Dewatering well bamboo cage chimney filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204163092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836249A (en) * | 2016-12-23 | 2017-06-13 | 浙江省送变电工程公司 | Small deep-well precipitation method in power network overhead transmission line foundation construction |
| CN107165181A (en) * | 2017-07-11 | 2017-09-15 | 中交隧道工程局有限公司 | It is a kind of that there is the subway foundation pit dewatering well for monitoring depressurization |
| CN114406552A (en) * | 2022-03-04 | 2022-04-29 | 中国石油大学(华东) | Anti-fatigue welding manufacturing method for rotary drum of rotary drum type filter press |
-
2014
- 2014-09-15 CN CN201420527663.4U patent/CN204163092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836249A (en) * | 2016-12-23 | 2017-06-13 | 浙江省送变电工程公司 | Small deep-well precipitation method in power network overhead transmission line foundation construction |
| CN107165181A (en) * | 2017-07-11 | 2017-09-15 | 中交隧道工程局有限公司 | It is a kind of that there is the subway foundation pit dewatering well for monitoring depressurization |
| CN114406552A (en) * | 2022-03-04 | 2022-04-29 | 中国石油大学(华东) | Anti-fatigue welding manufacturing method for rotary drum of rotary drum type filter press |
| CN114406552B (en) * | 2022-03-04 | 2023-10-10 | 中国石油大学(华东) | Anti-fatigue welding manufacturing method for rotary drum of rotary drum type filter press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 |