CN113684910A - Construction method for jacking pipe to exit from inclined slope - Google Patents
Construction method for jacking pipe to exit from inclined slope Download PDFInfo
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- CN113684910A CN113684910A CN202110833281.9A CN202110833281A CN113684910A CN 113684910 A CN113684910 A CN 113684910A CN 202110833281 A CN202110833281 A CN 202110833281A CN 113684910 A CN113684910 A CN 113684910A
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- pipe
- jacking
- construction
- pipe jacking
- slope
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 7
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract 2
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a construction method for jacking pipe to exit from an inclined slope, belongs to the technical field of municipal pipeline jacking pipes, and solves the problems of high cost, high construction difficulty and great influence on the surrounding environment during construction in the traditional jacking pipe exiting method. The method comprises the following steps: before pipe jacking construction, pre-reinforcing the stratum at the end part and the top part of the planned pipe jacking by adopting a sleeve valve pipe in a ground grouting mode; carrying out pipe jacking construction by using a pipe jacking tool, and stopping the pipe jacking construction when the pipe jacking is close to the inclined slope; releasing the slope from the slope surface to the pipe jacking direction and reversely digging to expose the pipe jacking tool and the end part of the pipe jacking; lifting the pipe jacking tool to leave the construction site, and constructing other structures connected with the pipe jacking; backfilling and covering soil, and restoring the original natural landform of the planted grass and the planted trees. The method solves the problems of safety and feasibility of the hole outlet of the jacking pipe slope by adopting a mode of pre-strengthening stratum and back excavation and backfilling, is simple and convenient to construct, avoids building and dismantling a jacking pipe receiving well, and is low in engineering cost and risk.
Description
Technical Field
The invention belongs to the technical field of municipal pipeline jacking pipes, and particularly relates to a construction method for jacking a pipe out of a hole in an inclined slope.
Background
The landform and the landform of the loess region are mostly ridges and loess hills, the discharge end point of the municipal rainwater pipeline of gravity flow is usually arranged at the inclined slope of the natural channel, and then the pipeline is connected with the rapid trough and discharged into the channel. At the moment, the rainwater pipeline is generally deeper, and is suitable for construction by adopting a pipe jacking method. Due to the limitation of the terrain, the position of the jacking pipe outlet hole can only be arranged on the inclined slope surface, and the jacking pipe outlet hole belongs to unconventional receiving outlet holes.
In addition, due to the reason of terrain limitation, the problems of material transportation, difficult mechanical operation and the like exist when the jacking pipe receiving well is built on the inclined slope surface, and therefore the construction difficulty is very high. Even if the jacking pipe receiving well can be built reluctantly, the integral overturning and landslide of the jacking pipe receiving well can easily occur during subsequent excavation and construction of an torrent trench or other structures, and a jacking pipe working well needs to be dismantled or backfilled after the project is completed, so that the existing method is high in cost, large in construction difficulty and long in construction period, and influences on the surrounding environment are large during the construction period.
Disclosure of Invention
The invention aims to provide a pipe jacking and hole exiting construction method for an inclined slope land, which aims to solve the problems of high cost, high construction difficulty, long construction period and great influence on the surrounding environment during construction in the traditional pipe jacking and hole exiting method.
The technical scheme of the invention is as follows: a construction method for jacking pipes to exit from inclined sloping fields comprises the following steps:
A. in order to avoid large-scale subsidence and collapse of the slope surface during pipe jacking construction, the stratum at the end part and the top part of the planned pipe jacking is pre-reinforced by adopting a sleeve valve pipe in a ground grouting mode before the pipe jacking construction;
B. after the slurry reaches the design strength, pipe jacking construction is carried out by using a pipe jacking tool, and the pipe jacking construction is stopped when the pipe jacking is jacked to a position close to the inclined slope;
C. releasing the slope from the slope surface to the pipe jacking direction and reversely digging to expose the pipe jacking tool and the end part of the pipe jacking;
D. lifting the pipe jacking tool to leave the construction site, and constructing other structures connected with the pipe jacking;
E. backfilling and covering soil, and restoring the original natural landform of the planted grass and the planted trees.
As a further improvement of the invention, in the step B, when the minimum earth covering thickness at the top of the jacking pipe is not more than 1.5 times of the external diameter of the jacking pipe, the jacking pipe construction is stopped, so as to ensure the bearing arch effect of the earth covering of the jacking pipe and prevent collapse.
As a further improvement of the method, in the step C, the exposed length of the end part of the jacking pipe is 1-2 m, and a construction space is reserved.
The invention has the beneficial effects that: aiming at the condition that a pipe jacking machine cannot normally go out of a hole when a pipe jacking receiving well cannot be arranged on an inclined slope, the invention adopts a mode of pre-strengthening stratum and back excavation and backfilling to solve the problems of safety and feasibility of the hole of the pipe jacking slope.
Drawings
FIG. 1 is a schematic representation of step A of the process of the present invention;
FIG. 2 is a schematic representation of step B of the process of the present invention;
FIG. 3 is a schematic representation of steps C and D of the method of the present invention;
FIG. 4 is a schematic representation of step E of the process of the present invention.
In the figure: 1-sleeve valve tube; 2-pipe jacking tool; 3-jacking the pipe; 4-slope surface; 5-a structure; d-the external diameter of the jacking pipe.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
A construction method for jacking pipes to exit from inclined sloping fields comprises the following steps:
A. in order to avoid large-scale subsidence and collapse of the slope surface during the construction of the jacking pipe, the stratum at the end part and the top part of the jacking pipe to be built is pre-reinforced by adopting the sleeve valve pipe 1 in a ground grouting mode before the construction of the jacking pipe, and grouting slurry can adopt cement paste or cement water glass;
B. after the grout reaches the design strength, pipe jacking construction is carried out by using a pipe jacking tool 2 (a pipe jacking machine or a tool pipe), when the jacking pipe 3 jacks to the position close to the inclined slope 4, the soil covering burial depth of the pipe top 3 is continuously reduced, and when the minimum soil covering thickness of the top of the jacking pipe 3 is not more than 1.5D (D is the external diameter of the jacking pipe), the pipe jacking construction is stopped;
C. adopting manual or small-sized machinery to perform slope releasing and backward digging from the slope surface 4 to the direction of the jacking pipe 3, exposing 1-2 m of the end parts of the jacking pipe tool 2 and the jacking pipe 3, and determining the slope releasing rate by calculating the stability and referring to local experience parameters;
D. the pipe jacking tool 2 is lifted and lifted away from the construction site, and other structures 5 connected with the pipe jacking 3 are sequentially constructed;
E. backfilling and covering soil, and restoring the original natural landform of the planted grass and the planted trees.
Claims (3)
1. A construction method for jacking pipes to exit in an inclined slope is characterized by comprising the following steps:
A. before pipe jacking construction, pre-reinforcing the stratum at the end part and the top part of the planned pipe jacking by adopting a sleeve valve pipe (1) in a ground grouting mode;
B. carrying out pipe jacking construction by using the pipe jacking tool (2), and stopping the pipe jacking construction when the pipe jacking (3) jacks to the position close to the inclined slope surface (4);
C. releasing the slope from the slope surface (4) to the direction of the jacking pipe (3) and reversely digging to expose the jacking pipe tool (2) and the end part of the jacking pipe (3);
D. the pipe jacking tool (2) is lifted and moved away from the construction site, and other structures (5) connected with the pipe jacking tool (3) are constructed;
E. backfilling and covering soil, and restoring the original natural landform of the planted grass and the planted trees.
2. The method for pipe jacking and caving in inclined sloping fields as claimed in claim 1, wherein: and in the step B, stopping pipe jacking construction when the minimum soil covering thickness of the top of the jacking pipe (3) is not more than 1.5 times of the external diameter of the jacking pipe.
3. The method for jacking pipe to go out of hole in the inclined sloping field as claimed in claim 1 or 2, wherein: in the step C, the exposed length of the end part of the top pipe (3) is 1-2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110833281.9A CN113684910A (en) | 2021-07-22 | 2021-07-22 | Construction method for jacking pipe to exit from inclined slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110833281.9A CN113684910A (en) | 2021-07-22 | 2021-07-22 | Construction method for jacking pipe to exit from inclined slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113684910A true CN113684910A (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110833281.9A Pending CN113684910A (en) | 2021-07-22 | 2021-07-22 | Construction method for jacking pipe to exit from inclined slope |
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| CN (1) | CN113684910A (en) |
Citations (10)
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|---|---|---|---|---|
| CN1436917A (en) * | 2003-03-06 | 2003-08-20 | 上海隧道工程股份有限公司 | Tunnel constructing process with miniature push pipes to balance earth pressure |
| JP2004360267A (en) * | 2003-06-04 | 2004-12-24 | Shinwa Gijutsu Kaihatsu Kk | Long-distance jacking method |
| CN102182465A (en) * | 2011-04-01 | 2011-09-14 | 长安大学 | Tunnel-entering construction method for tunnel |
| CN105041327A (en) * | 2015-08-27 | 2015-11-11 | 北京建工土木工程有限公司 | Subsurface tunnel reverse shield receiving method |
| CN106088115A (en) * | 2016-07-28 | 2016-11-09 | 中国电建集团成都勘测设计研究院有限公司 | The method increasing Stability of Soil of High Side Slopes |
| CN107268600A (en) * | 2017-08-01 | 2017-10-20 | 江苏燕宁建设工程有限公司 | Grouting strengthening method, pipe jacking construction method and application |
| CN109812277A (en) * | 2019-02-28 | 2019-05-28 | 中铁十八局集团有限公司 | A kind of vertical cliff tunnel active defense bimetallic tube canopy of high drop is appeared safely method |
| CN109826065A (en) * | 2019-02-22 | 2019-05-31 | 无锡市政设计研究院有限公司 | A kind of high-fill roadbed guard system and its construction method |
| CN111648773A (en) * | 2020-05-22 | 2020-09-11 | 中亿丰建设集团股份有限公司 | Construction method of connection channel communicated with existing underground structure of central urban area |
| JP2020153175A (en) * | 2019-03-22 | 2020-09-24 | 株式会社奥村組 | Tunnel construction method |
-
2021
- 2021-07-22 CN CN202110833281.9A patent/CN113684910A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436917A (en) * | 2003-03-06 | 2003-08-20 | 上海隧道工程股份有限公司 | Tunnel constructing process with miniature push pipes to balance earth pressure |
| JP2004360267A (en) * | 2003-06-04 | 2004-12-24 | Shinwa Gijutsu Kaihatsu Kk | Long-distance jacking method |
| CN102182465A (en) * | 2011-04-01 | 2011-09-14 | 长安大学 | Tunnel-entering construction method for tunnel |
| CN105041327A (en) * | 2015-08-27 | 2015-11-11 | 北京建工土木工程有限公司 | Subsurface tunnel reverse shield receiving method |
| CN106088115A (en) * | 2016-07-28 | 2016-11-09 | 中国电建集团成都勘测设计研究院有限公司 | The method increasing Stability of Soil of High Side Slopes |
| CN107268600A (en) * | 2017-08-01 | 2017-10-20 | 江苏燕宁建设工程有限公司 | Grouting strengthening method, pipe jacking construction method and application |
| CN109826065A (en) * | 2019-02-22 | 2019-05-31 | 无锡市政设计研究院有限公司 | A kind of high-fill roadbed guard system and its construction method |
| CN109812277A (en) * | 2019-02-28 | 2019-05-28 | 中铁十八局集团有限公司 | A kind of vertical cliff tunnel active defense bimetallic tube canopy of high drop is appeared safely method |
| JP2020153175A (en) * | 2019-03-22 | 2020-09-24 | 株式会社奥村組 | Tunnel construction method |
| CN111648773A (en) * | 2020-05-22 | 2020-09-11 | 中亿丰建设集团股份有限公司 | Construction method of connection channel communicated with existing underground structure of central urban area |
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Application publication date: 20211123 |
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