CN110306581A - One kind new old pipeline connection well and its construction method in water rich strata - Google Patents
One kind new old pipeline connection well and its construction method in water rich strata Download PDFInfo
- Publication number
- CN110306581A CN110306581A CN201910699635.8A CN201910699635A CN110306581A CN 110306581 A CN110306581 A CN 110306581A CN 201910699635 A CN201910699635 A CN 201910699635A CN 110306581 A CN110306581 A CN 110306581A
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- Prior art keywords
- construction
- retaining wall
- old
- pipeline connection
- well
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- Pending
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- 238000010276 construction Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000010865 sewage Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000001556 precipitation Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 210000002435 tendon Anatomy 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
-
- 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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
Abstract
It is moved the present invention relates to municipal pipeline and changes technical field of construction, it is proposed a kind of construction method of the new old pipeline connection well in water rich strata, have including water-stop curtain construction, sleeve valve barrel grouting construction, panelling construction, construction of bottom plates and new sewage conduct construction procedure, feature: 1, its water-stop curtain is three pipe high-pressure rotary jet grouting piles of two rows button connection and old pipeline is surrounded reinforcing by sleeve valve barrel grouting；2, its retaining wall is located on the inside of water-stop curtain is cut the earth and one section of section linking skirting board is constituted from top to bottom using contrary sequence method, during which by the truncation removing of old sewage conduct；2, then construction bottom plate, the space that retaining wall and bottom plate surround are pipeline connection well；It is connected to new sewage conduct with pipeline connection well.The present invention proposes to use three pipe rotary churning piles tiltedly manual labour skill and sleeve valve barrel grouting reinforcement measure, then is aided with the method for precipitation well construction, and the smooth construction in new old pipeline connection well may be implemented, have the characteristics that safe and reliable, economical rationality, technical feasibility.
Description
Technical field
It is moved the present invention relates to municipal pipeline and changes technical field of construction, especially a kind of new old pipeline connection in water rich strata
The construction method of drifting.
Background technique
Utilization is continually developed with urban underground space, a large amount of municipal pipeline is carried out moving reconfiguration often refuting and applied
Work, especially when down-stream pipeline is moved change construction when, generally use cut and cover method and push bench process, and construction by pipeline jacking method is to pass through top
New old pipeline connection is got up in tube apparatus push pipe operation between received well and active well.And often diameter is big for old sewage conduct
And buried depth depth is big, new received well is that excavation operation is carried out right above old sewage conduct, especially with regard to face in water rich strata
The crossover sites for facing old pipeline and new received well are easy to the problem of percolating water occur, lead to newly to receive well construction being difficult to smoothly
Implement, is that a kind of method that can go on smoothly new old pipeline connection well construction in water rich strata of the invention is just very significant
?.
Summary of the invention
The purpose of the present invention is to propose to a kind of construction methods of the new old pipeline connection well of water rich strata, have safety can
Lean on, economical rationality, technical feasibility the characteristics of.
The present invention can be realized by following approach.
New old pipeline connection well in a kind of water rich strata comprising have connection well construction, the master of the connection well construction
Body is retaining wall, and the retaining wall is that one section of a section is connected from top to bottom by several skirting boards, and the bottom of retaining wall has bottom
The space that plate, retaining wall and bottom plate surround is pipeline connection well, and connection well construction further includes the old sewage pipe that end is connect with retaining wall
With new sewage pipe, the old sewage pipe and new sewage pipe are horizontally placed on the top of bottom plate and in substantially same elevation location.
The construction method of above-mentioned new old pipeline connection well, including following construction procedure.
Step 1: water-stop curtain is constructed
Construct on the outside of the retaining wall of proposed pipeline connection well water-stop curtain, water-stop curtain include the diameters of two rows of button connection be 800~
1000mm, center spacing are the three pipe high-pressure rotary jet grouting piles of 600~800mm, the three pipe high-pressure rotary-sprays close to old sewage conduct two sides
Stake is oblique construction, remaining is to surround the slurry of three pipe high-pressure rotary jet grouting piles by old sewage conduct, three pipe high pressures vertically to construction
The old sewage conduct bottom at least 1m of the most bottom positional distance of rotary churning pile.
Step 2: sleeve valve barrel grouting is constructed
Old sewage conduct two sides on the outside of pile water stopping curtain are disposed with sleeve valve barrel grouting hole, by sleeve valve barrel grouting hole to old dirt
Slip casting on the outside of waterpipe further surrounds old sewage conduct.
Step 3: panelling construction
In the inside reverse construction retaining wall of water-stop curtain, cuts the earth from top to bottom and one section of a section is connected skirting board, encounter old dirt
Removing is truncated in waterpipe, and old sewage conduct end is concordant on the inside of retaining wall.
Step 4: construction of bottom plates
The lower section of retaining wall is cut the earth again and is reinforced with two fluid grouting in proposed pipeline connection well, and bottom plate of then constructing, bottom plate is reinforcing bar
The space that concrete structure, retaining wall and bottom plate surround is pipeline connection well.
Step 5: new sewage conduct construction
In the other end placement operations well of new sewage conduct, from well is operated to the new sewage pipe of pipeline connection well shield construction
Road is connected to new sewage conduct with pipeline connection well.
Preceding or period is carried out in the panelling construction of step 3, leak sand leakage phenomenon such as occurs, constructs on the outside of water-stop curtain
Dewatering well.
Present invention substantive distinguishing features outstanding and significant progress are: using water-stop curtain in water rich strata and combine
One joint sealing of oblique three pipes rotary churning pile and sleeve valve barrel grouting assures measure, then is aided with an appropriate number of dewatering well for dropping
The mode of phreatic low and flowing pressure realizes that contrary sequence method well is smoothly implemented, and the present invention has safe and reliable, economical
Rationally, the characteristics of technical feasibility.
Detailed description of the invention
Fig. 1 is pipeline connection well construction plan view of the invention.
Fig. 2 is pipeline connection well construction construction sectional view of the invention.
Specific embodiment
For the technical solution of more detailed description case study on implementation of the present invention, the attached drawing of case study on implementation will be done simply below
It introduces.
Embodiment
A kind of new old pipeline connection well with reference to Fig. 1 and Fig. 2, in water rich strata comprising there is connection well construction, it is described
The main body of drifting structure is retaining wall 1, and the retaining wall 1 is that one section of a section is connected from top to bottom by several skirting boards, shield
The bottom of wall 1 has bottom plate 2, and the space that retaining wall 1 and bottom plate 2 surround is pipeline connection well 10, and connection well construction further includes end
The old sewage pipe 3 and new sewage pipe 4 connecting with retaining wall 1, the old sewage pipe 3 and new sewage pipe 4 are horizontally placed on the upper of bottom plate 2
Just and it is in substantially same elevation location.
The construction method of above-mentioned new old pipeline connection well, including following construction procedure.
Step 1: water-stop curtain is constructed
On the outside of the retaining wall of proposed pipeline connection well construct water-stop curtain 5, water-stop curtain 5 of the invention use two rows diameters for
800mm, pile center's spacing are the three pipe high-pressure rotary jet grouting piles 51 of 600mm, and the long 12m of stake, cement grade is not less than 42.5R ordinary silicon
Acid salt cement, the ratio of mud use the cement grout of 1:1, and cement mixing content is about 30%, it is desirable that intensity is not less than 1.8MPa within 28 days.
Oblique rotary churning pile: the three pipe high-pressure rotary jet grouting piles 51 close to old 3 two sides of sewage conduct are oblique construction, remaining is vertical
To construction, oblique rotary churning pile center line and the horizontal line angle of cut with 72 ° it is oblique downwards squeeze into, make the slurry of three pipe high-pressure rotary jet grouting piles 51
Cover all around old sewage conduct 3.
Step 2: sleeve valve barrel grouting is constructed
It is respectively arranged two sleeve valve barrel grouting holes 6 again in 3 two sides of old sewage conduct in 5 outside of pile water stopping curtain, is as oblique
One joint measures of preventing water of three pipe high-pressure rotary jet grouting piles 51.Detailed process parameter is detailed in following table:
。
Step 3: panelling construction
In the inside reverse construction retaining wall 1 of water-stop curtain 5, working procedure: active well setting-out → surveying setting-out → inspection center
It point and excavates range → be excavated to the first layer depth → reinforcing bar binding → template installation → concreting → and is excavated to the second layer
And recycle above-mentioned work to substrate, encounter old sewage conduct 3 in work progress and removing be truncated, make old 3 end of sewage conduct with
1 inside of retaining wall is concordant.
Step 4: construction of bottom plates
1 lower section of retaining wall in proposed pipeline connection well is cut the earth again and is reinforced with two fluid grouting, and bottom plate 2 of then constructing, bottom plate 2 is steel
The space that tendon concrete structure, retaining wall 1 and bottom plate 2 surround is pipeline connection well 10.
Bottom plate 2 is made of the C30 reinforced concrete structure of 500mmm thickness, and the lower section of bottom plate 2 is infused by the biliquid of 2500mm thickness
Pulp layer 21 is reinforced and the C15 plain concrete cushion layer 22 of 100mm thickness.
Step 5: new sewage conduct construction
In the other end placement operations well of new sewage conduct 4, from well is operated to the new sewage of shield construction of pipeline connection well 10
Pipeline 4 is connected to new sewage conduct 4 with pipeline connection well 10.
The present embodiment is also according to geological condition, and carry out precipitation well construction: visually live contrary sequence method well body structure is big for dewatering well
Small and position and arrange, can construct in advance, can also go out before contrary sequence method well body structure construction during contrary sequence method well construction
It is resynchronized and is constructed according to leak source position when existing leak sand leakage phenomenon, to accomplish more targeted precipitation effectiveness.
The dewatering well 7 of the present embodiment is arranged in 5 outside of water-stop curtain, and the well depth of dewatering well 7 is 15m, aperture 550mm, adopts
With diameter 300mm, the steel pipe of wall thickness 3mm, 2 layer of 30 mesh nylon cloth strainer of outsourcing is filled out M5-M20 graded broken stone drainage layer outside, is divided into
12m chimney filter is arranged in 1m sediment tube, and chimney filter is the bridge type filter pipe of same specification, and filtrate is backfilled to subsurface about 2m, thereon using original
Stratum earthen backfill well cementation.
Claims (3)
1. the new old pipeline connection well in a kind of water rich strata comprising have connection well construction, the main body of the connection well construction
For retaining wall (1), the retaining wall (1) is that one section of a section is connected from top to bottom by several skirting boards, the bottom of retaining wall (1)
With bottom plate (2), space that retaining wall (1) and bottom plate (2) surround is pipeline connection well (10), connection well construction further include end with
The old sewage pipe (3) and new sewage pipe (4) of retaining wall (1) connection, the old sewage pipe (3) and new sewage pipe (4) are horizontally placed on
The top of bottom plate (2) and be in substantially same elevation location, it is characterised in that:
Have on the outside of the retaining wall (1) with water-stop curtain (5), water-stop curtain (5) by two rows of diameters is 800~1000mm, in stake
In the heart away from three pipe high-pressure rotary jet grouting piles (51) composition for 600~8000mm, the slurries of three pipe high-pressure rotary jet grouting piles (51) is by old sewage
Pipeline (3) surrounds entirely.
2. the construction method of new old pipeline connection well described in claim 1, it is characterised in that including following construction procedure:
Step 1: water-stop curtain is constructed
It constructs water-stop curtain (5) in the outside of the proposed retaining wall of pipeline connection well, water-stop curtain (5) includes that the diameter of two rows of button connection is
800~1000mm, center spacing is the three pipe high-pressure rotary jet grouting piles (51) of 600~8000mm, close to old sewage conduct (3) two sides
Three pipe high-pressure rotary jet grouting piles (51) are oblique construction, remaining high-pressure rotary jet grouting pile (51) is to make three pipe high-pressure rotary jet grouting piles vertically to construction
(51) slurry surrounds old sewage conduct (3), most bottom positional distance old sewage conduct (3) bottom of three pipe high-pressure rotary jet grouting piles (51)
Portion at least 1m；
Step 2: sleeve valve barrel grouting is constructed
Sleeve valve barrel grouting hole (6) are arranged in old sewage conduct (3) two sides on the outside of pile water stopping curtain (5), pass through sleeve valve barrel grouting
Hole (6) further surrounds old sewage conduct (3) to slip casting on the outside of old sewage conduct (3)；
Step 3: panelling construction
In the inside reverse construction retaining wall (1) of water-stop curtain (5), cuts the earth from top to bottom and one section of a section is connected skirting board, meet
Removing is truncated to old sewage conduct (3), old sewage conduct (3) is held and concordant, retaining wall (1) lower end on the inside of retaining wall (1)
In the lower section of old sewage conduct (3)；
Step 4: construction of bottom plates
The lower section of retaining wall (1) is cut the earth again and is reinforced with two fluid grouting in pipeline connection well, then constructs in pipeline connection bottom
Bottom plate (2), bottom plate (2) are reinforced concrete structure, and the space that retaining wall (1) and bottom plate (2) surround is pipeline connection well (10)；
Step 5: new sewage conduct construction
It is new with shield construction to pipeline connection well (10) from operation well in the other end placement operations well of new sewage conduct (4)
Sewage conduct (4) is connected to new sewage conduct (4) with pipeline connection well (10).
3. the construction method of new old pipeline connection well according to claim 2, it is characterised in that: applied in the retaining wall of step 3
Work carries out preceding or period, the Dewatering well (7) on the outside of water-stop curtain (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699635.8A CN110306581A (en) | 2019-07-31 | 2019-07-31 | One kind new old pipeline connection well and its construction method in water rich strata |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910699635.8A CN110306581A (en) | 2019-07-31 | 2019-07-31 | One kind new old pipeline connection well and its construction method in water rich strata |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110306581A true CN110306581A (en) | 2019-10-08 |
Family
ID=68082240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910699635.8A Pending CN110306581A (en) | 2019-07-31 | 2019-07-31 | One kind new old pipeline connection well and its construction method in water rich strata |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110306581A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456091A (en) * | 2020-04-16 | 2020-07-28 | 上海市浦东新区建设(集团)有限公司 | Pressure sewage pipe diversion method |
| CN113373980A (en) * | 2021-05-27 | 2021-09-10 | 合肥市市政设计研究总院有限公司 | Concrete inverted hanging well suitable for saturated sand and construction method thereof |
| CN115627786A (en) * | 2022-12-07 | 2023-01-20 | 中国冶金地质总局第三地质勘查院 | Method for plugging waste water taking well |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204876019U (en) * | 2015-08-20 | 2015-12-16 | 宁波市新亚建设有限公司 | Reverse construction method well that old and new's pipeline was linked up |
| CN107859145A (en) * | 2017-11-17 | 2018-03-30 | 广州市自来水工程公司 | A kind of drainpipe is plugged into construction method under water |
| CN208056081U (en) * | 2018-02-12 | 2018-11-06 | 广州市市政集团有限公司 | A kind of dual water sealing structure for region of FuShui |
| CN108867814A (en) * | 2018-07-18 | 2018-11-23 | 中国水利水电第七工程局有限公司 | It is newly-built to cut dirty branch pipe and existing sewage network is plugged into engineering method |
-
2019
- 2019-07-31 CN CN201910699635.8A patent/CN110306581A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204876019U (en) * | 2015-08-20 | 2015-12-16 | 宁波市新亚建设有限公司 | Reverse construction method well that old and new's pipeline was linked up |
| CN107859145A (en) * | 2017-11-17 | 2018-03-30 | 广州市自来水工程公司 | A kind of drainpipe is plugged into construction method under water |
| CN208056081U (en) * | 2018-02-12 | 2018-11-06 | 广州市市政集团有限公司 | A kind of dual water sealing structure for region of FuShui |
| CN108867814A (en) * | 2018-07-18 | 2018-11-23 | 中国水利水电第七工程局有限公司 | It is newly-built to cut dirty branch pipe and existing sewage network is plugged into engineering method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456091A (en) * | 2020-04-16 | 2020-07-28 | 上海市浦东新区建设(集团)有限公司 | Pressure sewage pipe diversion method |
| CN113373980A (en) * | 2021-05-27 | 2021-09-10 | 合肥市市政设计研究总院有限公司 | Concrete inverted hanging well suitable for saturated sand and construction method thereof |
| CN115627786A (en) * | 2022-12-07 | 2023-01-20 | 中国冶金地质总局第三地质勘查院 | Method for plugging waste water taking well |
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