CN113719660A - Construction method for penetrating through structure - Google Patents
Construction method for penetrating through structure Download PDFInfo
- Publication number
- CN113719660A CN113719660A CN202110846464.4A CN202110846464A CN113719660A CN 113719660 A CN113719660 A CN 113719660A CN 202110846464 A CN202110846464 A CN 202110846464A CN 113719660 A CN113719660 A CN 113719660A
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- CN
- China
- Prior art keywords
- sleeve
- construction
- fly ash
- construction method
- pipeline
- Prior art date
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 54
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 29
- 239000010881 fly ash Substances 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000005187 foaming Methods 0.000 claims abstract description 5
- 229920002635 polyurethane Polymers 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000010883 coal ash Substances 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
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a construction method for penetrating through a structure, which adopts a pipe-pulling construction method and uses the action of a pipe-jacking construction sleeve for reference, thereby safely and quickly penetrating through the existing structure. The construction method is carried out twice, wherein the back dragging casing construction is carried out for the first time, and the back dragging design pipeline construction is carried out for the second time; the diameter of the sleeve is larger than the diameter of the designed pipeline; the gap between the sleeve and the drilled hole is reinforced by grouting with cement fly ash slurry in a certain proportion, so that the gap between the drilled hole and the pipe wall is compact and the structure does not collapse; the front and rear ports of the sleeve are plugged by adopting polyurethane foaming, and a gap between the sleeve and the designed pipeline is densely filled by adopting cement fly ash dry powder in a certain proportion, so that the designed pipeline is ensured not to shake in the running process; and the sleeve outlet and inlet points are prevented from seepage by adopting a waterproof wing ring and cohesive soil backfilling mode, so that the seepage flow of the base layer is reduced. The construction method for passing through the structure, provided by the invention, has the advantages of high construction speed, low investment and low safety risk, solves the problems of low construction speed, high investment and high safety risk of the traditional construction method for passing through the structure by the pipelines for engineering design such as water supply, water discharge, oil supply, gas supply and the like, and has good social and economic benefits.
Description
Technical Field
The invention belongs to the technical field of construction of existing structures for passing through highways, railways and the like in projects of water conservancy, municipal water supply and drainage, oil supply, gas supply and the like, and particularly relates to a construction method for passing through the structures.
Background
When the engineering design pipelines of traditional water conservancy, municipal water supply and drainage, oil supply, gas supply and the like pass through the existing structures such as roads and railways for construction, in order to ensure that the structures are settled within an allowable range and ensure the construction safety and the effective operation of the existing structures, a pipe jacking construction method is often adopted, and the problems of low construction speed, large investment, high safety risk and the like exist.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a construction method for penetrating through a structure, which has the advantages of high construction speed, low investment and low safety risk, and solves the problems of low construction speed, high investment and high safety risk of the traditional construction method for penetrating through the structure by engineering design pipelines such as water supply, water discharge, oil supply, gas supply and the like.
The technical scheme of the invention is as follows:
a construction method for penetrating through a structure comprises the following steps:
performing construction twice, wherein the construction of back dragging the sleeve is performed for the first time, and the construction of back dragging the designed pipeline is performed for the second time; after construction, the sleeve and the design pipeline are in a nested concentric structure, and the design pipeline is positioned on the inner side of the sleeve;
the diameter of the sleeve is larger than the diameter of the designed pipeline;
the gap between the sleeve and the drilled hole is reinforced by grouting with cement fly ash slurry in a certain proportion, so that the gap between the drilled hole and the pipe wall is compact and the structure does not collapse;
the front and rear ports of the sleeve are plugged by adopting polyurethane foaming, and a gap between the sleeve and the designed pipeline is densely filled by adopting cement fly ash dry powder in a certain proportion, so that the designed pipeline is ensured not to shake in the running process;
and the sleeve outlet and inlet points are prevented from seepage by adopting a waterproof wing ring and cohesive soil backfilling mode, so that the seepage flow of the base layer is reduced.
Further, the pipe is a PE pipe.
Further, the diameter of the sleeve is about 20cm to 30cm larger than that of the designed pipeline.
Further, the cement-coal-ash slurry grouting reinforcement equipment is a high-pressure grouting machine.
Furthermore, the cement fly ash dry powder is filled by inserting an air compressor and a dry concrete sprayer into the side wall opening at one end of the sleeve through a spraying hose to tightly fill the gap between the sleeve and the designed pipeline with the cement fly ash dry powder in a certain proportion.
Further, the cement fly ash slurry is water: cement: the mass ratio of the fly ash is 1: 0.25 mixing and preparing slurry; the cement fly ash dry powder is cement: mixing the fly ash according to the mass ratio of 3: 1.
Furthermore, three waterproof wing rings are arranged, the distance between every two water stop rings is 1.0m, the first waterproof wing ring is tightly attached to an earth inlet and outlet point, and the permeability coefficient of cohesive soil is not more than 1 multiplied by 10-5cm/s and covered with three waterproof wing rings.
The invention adopts a pipe-pulling construction method and uses the action of a pipe-jacking construction sleeve for reference, thereby safely and quickly traversing the existing structures. According to the technical scheme, the pipe pulling and crossing construction is carried out twice, the back dragging casing construction is carried out for the first time, the back dragging design pipeline construction is carried out for the second time, the pipe is a PE pipe, the diameter of the casing is larger than that of the design pipeline, gaps between the casing and the drilled holes are reinforced by grouting through cement fly ash slurry in a certain proportion, the drilled holes and the pipe wall are compact, and a structure does not collapse; the front and rear ports of the sleeve are plugged by adopting polyurethane foaming, and a gap between the sleeve and a designed pipeline is densely filled by adopting cement fly ash dry powder in a certain proportion, so that the designed pipeline is ensured not to shake in the running process; and the sleeve outlet and inlet points are prevented from seepage in a waterproof wing ring and cohesive soil backfilling mode, so that the seepage flow of the base layer is reduced, and the collapse risk of the structure is reduced.
Compared with the prior art, the invention has the following beneficial effects:
by adopting the technical scheme of the invention, the problems of low construction speed, large investment, high safety risk and the like when the traditional engineering design pipelines for water supply and drainage, oil supply, gas supply and the like pass through the existing structures such as roads, railways and the like are effectively solved, and the invention has better social and economic benefits. The method comprises the following specific steps:
the method has the advantages that the casing is pulled back and pulled back by adopting a pipe pulling method instead of a pipe jacking method to push the casing, so that the casing passes through the existing structure, the construction process is optimized, the construction time of the casing passing through the existing structure is shortened (the construction procedures of a pipe jacking working well and a receiving well are cancelled, the construction method of the casing passing is improved, the safety risks of foundation pit collapse, water burst, poisoning, electric shock and the like which possibly occur during the construction process are avoided), the method is safer and quicker, and the engineering investment is reduced.
Secondly, the pipeline material is designed to be adjusted from a steel pipe to a PE pipe, so that the cost of the pipeline material is reduced, and the installation time of the pipeline is shortened;
and thirdly, arranging a homogeneous sleeve outside the designed pipeline, filling a gap between the sleeve and the designed pipeline with dry cement and fly ash powder, plugging a pipe orifice with polyurethane foam, and preventing seepage in a mode of waterproof wing rings (embedded outside the sleeve, soil bodies at the soil outlet and the soil inlet points close to the end part of the sleeve) and cohesive soil backfilling (the backfilling range is within 2m of the outer wall of the sleeve) at the soil outlet and the soil inlet points of the sleeve, so that the problems of collapse, seepage damage and the like of existing structures during construction and operation of the designed pipeline are avoided, and the safety risk is reduced.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments belong to the protection scope of the present invention.
The existing structure of the embodiment is a bidirectional six-lane provincial road, the asphalt pavement is 30m, and the roadbed width is 32 m.
The construction method of the crossing structure of the embodiment comprises the following steps:
performing construction twice, wherein the construction of back dragging the sleeve is performed for the first time, and the construction of back dragging the designed pipeline is performed for the second time; after construction, the sleeve and the design pipeline are in a nested concentric structure, and the design pipeline is positioned on the inner side of the sleeve; the pipe is a PE pipe.
The diameter of the sleeve is about 20 cm-30 cm larger than that of the designed pipeline. The gap between the sleeve and the drilled hole is reinforced by grouting with cement fly ash slurry in a certain proportion, so that the gap between the drilled hole and the pipe wall is compact and the structure does not collapse; the cement-coal-powder mortar grouting reinforcement equipment is a high-pressure grouting machine.
The front and rear ports of the sleeve are plugged by adopting polyurethane foaming, and a gap between the sleeve and the designed pipeline is densely filled by adopting cement fly ash dry powder in a certain proportion, so that the designed pipeline is ensured not to shake in the running process; and the sleeve outlet and inlet points are prevented from seepage by adopting a waterproof wing ring and cohesive soil backfilling mode, so that the seepage flow of the base layer is reduced.
The cement fly ash dry powder filling is to utilize an air compressor to be matched with a dry concrete sprayer to be inserted into an opening on the side wall of one end of the sleeve through a spraying hose so as to tightly fill the gap between the sleeve and the designed pipeline with the cement fly ash dry powder in a certain proportion.
The cement fly ash slurry is water: cement: the mass ratio of the fly ash is 1: 0.25 mixing and preparing slurry; the cement fly ash dry powder is cement: mixing the fly ash according to the mass ratio of 3: 1.
Three water-proof wing rings are arranged, the distance between every two water-proof rings is 1.0m, the first water-proof wing ring is tightly attached to the soil inlet and outlet point, and the permeability coefficient of cohesive soil is not more than 1 x 10-5cm/s and covered with three waterproof wing rings.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A construction method for penetrating through a structure is characterized in that: the method comprises the following steps:
performing construction twice, wherein the construction of back dragging the sleeve is performed for the first time, and the construction of back dragging the designed pipeline is performed for the second time; after construction, the sleeve and the design pipeline are in a nested concentric structure, and the design pipeline is positioned on the inner side of the sleeve;
the diameter of the sleeve is larger than the diameter of the designed pipeline;
the gap between the sleeve and the drilled hole is reinforced by grouting with cement fly ash slurry in a certain proportion, so that the gap between the drilled hole and the pipe wall is compact and the structure does not collapse;
the front and rear ports of the sleeve are plugged by adopting polyurethane foaming, and a gap between the sleeve and the designed pipeline is densely filled by adopting cement fly ash dry powder in a certain proportion, so that the designed pipeline is ensured not to shake in the running process;
and the sleeve outlet and inlet points are prevented from seepage by adopting a waterproof wing ring and cohesive soil backfilling mode, so that the seepage flow of the base layer is reduced.
2. The construction method according to claim 1, characterized in that: the pipe is a PE pipe.
3. The construction method according to claim 1, characterized in that: the diameter of the sleeve is about 20 cm-30 cm larger than that of the designed pipeline.
4. The construction method according to claim 1, characterized in that: the cement-coal-powder mortar grouting reinforcement equipment is a high-pressure grouting machine.
5. The construction method according to claim 1, characterized in that: the cement fly ash dry powder filling is to utilize an air compressor to be matched with a dry concrete sprayer to be inserted into an opening on the side wall of one end of the sleeve through a spraying hose so as to tightly fill the gap between the sleeve and the designed pipeline with the cement fly ash dry powder in a certain proportion.
6. The construction method according to claim 1, characterized in that: the cement fly ash slurry is water: cement: the mass ratio of the fly ash is 1: 1: 0.25 mixing and preparing slurry;
the cement fly ash dry powder is cement: mixing the fly ash according to the mass ratio of 3: 1.
7. A method of constructing a penetrating structure according to claim 1, wherein: three water-proof wing rings are arranged, the distance between every two water-proof rings is 1.0m, the first water-proof wing ring is tightly attached to the soil inlet and outlet point, and the permeability coefficient of cohesive soil is not more than 1 x 10-5cm/s and covered with three waterproof wing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110846464.4A CN113719660A (en) | 2021-07-26 | 2021-07-26 | Construction method for penetrating through structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110846464.4A CN113719660A (en) | 2021-07-26 | 2021-07-26 | Construction method for penetrating through structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113719660A true CN113719660A (en) | 2021-11-30 |
Family
ID=78674021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110846464.4A Pending CN113719660A (en) | 2021-07-26 | 2021-07-26 | Construction method for penetrating through structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113719660A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4374672A (en) * | 1980-04-04 | 1983-02-22 | The Detroit Edison Company | Method of and composition for producing a stabilized fill material |
| JPH0790272A (en) * | 1993-09-22 | 1995-04-04 | Japan Steel & Tube Constr Co Ltd | Super-plasticizable back-filling material and back-filling process |
| CN103527140A (en) * | 2012-10-22 | 2014-01-22 | 洛阳富兴管业有限公司 | Cement pipe dado filling and grouting technology |
| CN108692104A (en) * | 2018-06-01 | 2018-10-23 | 平煤神马建工集团有限公司 | A kind of chemical pipeline casing protection device passing through complicated geological riverbed |
| CN108843328A (en) * | 2018-06-25 | 2018-11-20 | 佳琳 | A kind of Metro Connection Passage excavation construction support construction method |
| CN208252932U (en) * | 2018-03-28 | 2018-12-18 | 上海市水利工程设计研究院有限公司 | A kind of slide assemblies applied in Directional Drilling interpolation pipe technique |
| CN109323049A (en) * | 2018-11-22 | 2019-02-12 | 中水电第十工程局（郑州）有限公司 | Bushing type aqueduct and its construction method of installation applied to through bridge |
| CN109578738A (en) * | 2019-01-24 | 2019-04-05 | 中国石油天然气集团公司 | A kind of anti-piping directional drilling pipeline isolated tube plugging device |
| CN112609672A (en) * | 2019-10-05 | 2021-04-06 | 叶合欣 | Prevention and treatment remediation method for directional drilling pipeline to penetrate through soft dike foundation |
-
2021
- 2021-07-26 CN CN202110846464.4A patent/CN113719660A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4374672A (en) * | 1980-04-04 | 1983-02-22 | The Detroit Edison Company | Method of and composition for producing a stabilized fill material |
| JPH0790272A (en) * | 1993-09-22 | 1995-04-04 | Japan Steel & Tube Constr Co Ltd | Super-plasticizable back-filling material and back-filling process |
| CN103527140A (en) * | 2012-10-22 | 2014-01-22 | 洛阳富兴管业有限公司 | Cement pipe dado filling and grouting technology |
| CN208252932U (en) * | 2018-03-28 | 2018-12-18 | 上海市水利工程设计研究院有限公司 | A kind of slide assemblies applied in Directional Drilling interpolation pipe technique |
| CN108692104A (en) * | 2018-06-01 | 2018-10-23 | 平煤神马建工集团有限公司 | A kind of chemical pipeline casing protection device passing through complicated geological riverbed |
| CN108843328A (en) * | 2018-06-25 | 2018-11-20 | 佳琳 | A kind of Metro Connection Passage excavation construction support construction method |
| CN109323049A (en) * | 2018-11-22 | 2019-02-12 | 中水电第十工程局（郑州）有限公司 | Bushing type aqueduct and its construction method of installation applied to through bridge |
| CN109578738A (en) * | 2019-01-24 | 2019-04-05 | 中国石油天然气集团公司 | A kind of anti-piping directional drilling pipeline isolated tube plugging device |
| CN112609672A (en) * | 2019-10-05 | 2021-04-06 | 叶合欣 | Prevention and treatment remediation method for directional drilling pipeline to penetrate through soft dike foundation |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20211130 |