CN113047397A - Construction method for preventing municipal drainage pipe network from being damaged by ground subsidence - Google Patents

Construction method for preventing municipal drainage pipe network from being damaged by ground subsidence Download PDF

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Publication number
CN113047397A
CN113047397A CN202110318080.5A CN202110318080A CN113047397A CN 113047397 A CN113047397 A CN 113047397A CN 202110318080 A CN202110318080 A CN 202110318080A CN 113047397 A CN113047397 A CN 113047397A
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CN
China
Prior art keywords
layer
foundation
concrete
construction method
grouting
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Pending
Application number
CN202110318080.5A
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Chinese (zh)
Inventor
欧少清
梁玲燕
刘瑞龙
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Zhongshan Environmental Protection Industrial Co ltd
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Zhongshan Environmental Protection Industrial Co ltd
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Publication date
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Priority to CN202110318080.5A priority Critical patent/CN113047397A/en
Publication of CN113047397A publication Critical patent/CN113047397A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/06Methods of, or installations for, laying sewer pipes
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers

Abstract

The invention relates to the technical field of ground subsidence prevention, and discloses a method for preventing ground subsidence from damaging a municipal drainage pipe network, which comprises the following steps of S1, chiseling holes matched with the outer dimensions of a waterproof soil layer, a concrete layer and a foundation layer by using a chiseling tool; s2, pumping away the sand and soil inside the foundation layer, the concrete layer and the waterproof soil layer, and injecting broken foundation stones into the foundation layer through the grouting ports; s3, injecting an anti-seepage solution into the upper surface layer of the foundation layer through a grouting port; s4, installing a drain pipe, starting the grouting machine again, and injecting concrete solution into the concrete layer through the grouting port; and S5, laying a waterproof geomembrane at the upper end of the concrete layer, namely the inside of the waterproof soil layer, and reforming the structure of the waterproof soil layer. According to the construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence, the ground base layer, the concrete layer and the anti-seepage anti-corrosion layer are additionally arranged outside the drainage pipe, so that the phenomenon of ground subsidence cannot occur, the integral ground subsidence prevention function is good, and the service life is long.

Description

Construction method for preventing municipal drainage pipe network from being damaged by ground subsidence
Technical Field
The invention relates to the technical field of ground subsidence prevention, in particular to a construction method for preventing ground subsidence from damaging a municipal drainage pipe network.
Background
The urban drainage pipe network is an important component of urban construction, is closely related to daily life of people, is related to the national people, and has positive and profound influence on the development of local economy, the improvement of resident life and working conditions and the optimization of investment environment. However, in recent years, road surface collapse and rainstorm are caused frequently due to the reason of drainage pipelines, when rainwater cannot be drained in time, urban water flooding events are increased increasingly and gradually become industrial problems, and inconvenience is brought to urban construction and people's life.
The prior art has the following defects and shortcomings:
because the drainage pipeline is corroded by the environment and is permeated, a seepage field can be formed around the pipeline, the seepage field can cause the change of the mechanical property of the soil body under the coupling action with the surrounding soil body, an underground water sac mixed with soil and water is formed, and once the seepage field is influenced by the ground or underground construction, the ground collapse accident can occur, so that the production cost is increased, the casualties can be caused, and therefore, corresponding measures are required to be taken for the ground collapse problem of the urban drainage pipeline network.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a construction method for preventing the municipal drainage pipe network from being damaged by ground subsidence, which can solve the problem of ground collapse caused by the corrosion of the existing drainage pipe network by the environment and the infiltration; the invention ensures that the ground subsidence phenomenon cannot occur by additionally arranging the ground base layer, the concrete layer and the anti-seepage and anti-corrosion layer outside the drainage pipe, has good integral ground subsidence prevention function and long service life, and effectively solves the problem of ground collapse caused by the corrosion and seepage of the drainage pipe under the environment.
In order to realize the construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence, the invention provides the following technical scheme that the construction method can ensure that the ground subsidence phenomenon cannot occur, the integral ground subsidence prevention function is good, and the service life is long: the utility model provides a prevent that ground from sinking and causing construction equipment of damage to municipal drainage pipe network, construction equipment includes the slip casting mouth, the slip casting mouth top is provided with the slip casting machine, the slip casting mouth bottom is provided with the drain pipe, drain pipe periphery side is provided with concrete layer, the concrete layer top is provided with waterproof layer, waterproof layer both sides are provided with the barrier layer, it is provided with anti-corrosion coating to go up barrier layer one side, anti-corrosion coating one side is provided with the anchor strut, the concrete layer bottom is provided with the ground basic unit, be provided with down the barrier layer between concrete layer and the ground basic unit, ground basic unit one side is provided with takes out husky mouth, take out husky mouthful external connection and have the pump body.
Preferably, the ground base layer is Y-shaped, and the thickness of the ground base layer is larger than that of the concrete layer.
Preferably, the waterproof soil layer is of a double-layer impermeable membrane structure.
Preferably, the reinforcing rods are symmetrically distributed on two sides of the anti-corrosion layer, the reinforcing rods are fixedly installed in the foundation through bolts, and the reinforcing rods are made of corrosion-resistant alloy steel materials.
Preferably, one end of the sand pumping port is connected with the pump body through a pipeline, and the other end of the sand pumping port extends into the foundation layer.
Further, the construction method comprises the following steps,
firstly, a cutting tool is used for cutting holes matched with the outer dimensions of a waterproof soil layer, a concrete layer and a foundation layer, and then a sand pumping port connected with a pump body is arranged in a penetrating manner in the hole on the left side of the Y-shaped hole matched with the foundation layer;
step two, starting a pump body, pumping away sandy soil inside the foundation layer, the concrete layer and the waterproof soil layer, starting a grouting machine after the sandy soil inside the foundation layer is pumped away, injecting broken foundation stones into the foundation layer through a grouting port, injecting the broken foundation stones from the grouting port, and filling the inside of the foundation layer to form the foundation layer;
thirdly, starting the grouting machine again, injecting an anti-seepage solution into the upper surface layer of the foundation layer through the grouting port, injecting the anti-seepage solution from the grouting port, and filling a layer on the upper surface layer of the foundation layer to form a lower anti-seepage layer;
step four, installing a drain pipe, starting the grouting machine again after the installation is finished, and injecting concrete solution into the concrete layer through the grouting port to form the concrete layer;
and fifthly, laying a waterproof geomembrane at the upper end of the concrete layer, namely the inside of the waterproof soil layer, and additionally arranging an impermeable layer, an anti-corrosion layer and a reinforcing rod at two sides of the waterproof soil layer to reform the structure of the waterproof soil layer.
Compared with the prior art, the invention provides a construction method for preventing the municipal drainage pipe network from being damaged by ground subsidence, which has the following beneficial effects:
the construction method for preventing the municipal drainage pipe network from being damaged by ground subsidence comprises the steps of pumping sand around a drainage pipe by arranging a pump body, arranging a grouting machine above the drainage pipe, injecting crushed gravel to the bottom of a concrete layer through a grouting port, forming a ground base layer at the bottom of the drainage pipe, stably supporting the drainage pipe, increasing the stability of a foundation when the drainage pipe is placed, filling concrete layer to replace the sand around the drainage pipe, reinforcing the structural fixation of the drainage pipe by the concrete layer, arranging a waterproof soil layer with a waterproof soil structure above the drainage pipe, effectively preventing rainwater from penetrating from the top of the drainage pipe to corrode the drainage pipe, and arranging an upper anti-seepage layer and an anti-corrosion layer at two sides of the waterproof soil layer to further improve the waterproof and anti-corrosion performances of the waterproof soil layer, still be provided with the anchor strut in waterproof soil layer both sides and improve waterproof soil layer's overall structure stability, effectively ensure that can not appear permeating and cause the phenomenon that falls into, holistic ground that prevents falls into function good, long service life.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a grouting port; 2. grouting machine; 3. a drain pipe; 4. a concrete layer; 5. a waterproof soil layer; 6. an upper impermeable layer; 7. an anti-corrosion layer; 8. a reinforcing rod; 9. a ground layer; 10. a lower barrier layer; 11. a sand pumping port; 12. and a pump body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a construction method for preventing damage to a municipal drainage pipe network caused by ground subsidence includes a grouting opening 1, a grouting machine 2 is arranged on the top of the grouting opening 1, a drainage pipe 3 is arranged at the bottom of the grouting opening 1, a concrete layer 4 is arranged on the periphery side of the drainage pipe 3, a waterproof soil layer 5 is arranged on the top of the concrete layer 4, upper impermeable layers 6 are arranged on two sides of the waterproof soil layer 5, an anti-corrosion layer 7 is arranged on one side of the upper impermeable layers 6, a reinforcing rod 8 is arranged on one side of the anti-corrosion layer 7, a ground base layer 9 is arranged at the bottom of the concrete layer 4, a lower impermeable layer 10 is arranged between the concrete layer 4 and the ground base layer 9, a sand pumping opening 11 is arranged on one side of the ground base layer 9, and.
In conclusion, the foundation layer 9 is Y-shaped, the thickness of the foundation layer 9 is larger than that of the concrete layer 4, and the drainage pipe 3 can be stably supported through the foundation layer 9; the waterproof soil layer 5 is of a double-layer impermeable membrane structure, and the waterproof soil layer 5 effectively prevents rainwater from permeating from the top of the drain pipe 3 to corrode the drain pipe 3; the reinforcing rods 8 are symmetrically distributed on two sides of the anti-corrosion layer 7, the reinforcing rods 8 are fixedly installed in the foundation through bolts, the reinforcing rods 8 are made of corrosion-resistant alloy steel materials, and the overall structural stability of the waterproof soil layer 5 is improved through the reinforcing rods 8; the sand pumping port 11 is connected with the pump body 12 through a pipeline, the other end of the sand pumping port 11 extends to the inside of the foundation layer 9, and sand in the foundation layer 9, the concrete layer 4 and the waterproof soil layer 5 is pumped away through the sand pumping port 11.
The working and using process and the installation method of the invention are that the construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence comprises the following steps,
firstly, a cutting tool is used for chiseling holes matched with the outer dimensions of a waterproof soil layer 5, a concrete layer 4 and a foundation layer 9, and then a sand pumping port 11 connected with a pump body 12 is arranged in a penetrating mode in the hole on the left side of the Y-shaped hole matched with the foundation layer 9; then starting a pump body 12, pumping away sandy soil inside the foundation layer 9, the concrete layer 4 and the waterproof soil layer 5, starting a grouting machine 2 after the sandy soil inside the foundation layer 9 is pumped away, injecting broken foundation stones into the foundation layer 9 through a grouting port 1, and filling the broken foundation stones into the foundation layer 9 through the grouting port 1 to form the foundation layer 9; then, starting the grouting machine 2 again, injecting an anti-seepage solution into the upper surface of the foundation layer 9 through the grouting port 1, injecting the anti-seepage solution from the grouting port 1, and filling a layer on the upper surface of the foundation layer 9 to form a lower anti-seepage layer 10; then, installing a drain pipe 3, after the installation is finished, starting the grouting machine 2 again, and injecting concrete solution into the concrete layer 4 through the grouting opening 1 to form a concrete layer 4; finally, laying a waterproof geomembrane at the upper end of the concrete layer 4, namely inside the waterproof soil layer 5, and additionally arranging an impermeable layer 6, an anti-corrosion layer 7 and a reinforcing rod 8 at two sides of the waterproof soil layer 5 to reform the structure of the waterproof soil layer 5;
the construction method for preventing the municipal drainage pipe network from being damaged by ground subsidence comprises the steps of pumping sand around a drainage pipe 3 by arranging a pump body 12, filling crushed sand into the bottom of a concrete layer 4 through a grouting port 1 by arranging a grouting machine 2 above the drainage pipe 3 to form a ground base layer 9 at the bottom of the drainage pipe 3, wherein the ground base layer 9 can play a role of stably supporting the drainage pipe 3 to increase the stability of a foundation when the drainage pipe 3 is placed, meanwhile, the concrete layer 4 is filled around the drainage pipe 3 to replace the sand through the concrete, the structural fixation of the drainage pipe 3 is enhanced through the concrete layer 4, a waterproof soil layer 5 with a waterproof soil structure is arranged above the drainage pipe 3, so that the drainage pipe 3 is effectively prevented from being corroded by rainwater which permeates from the top of the drainage pipe 3, and the waterproof and corrosion-proof layers 6 and 7 are arranged on two sides of the waterproof soil layer 5 to further improve the waterproof and corrosion-proof performances of the waterproof soil layer 5, still be provided with the anchor strut 8 in 5 both sides of waterproof soil layer and improve 5 overall structure stability of waterproof soil layer, effectively ensure that can not appear permeating and cause the phenomenon of sinking into the ground, holistic preventing that the ground is sunk the function good, long service life.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A construction method for preventing ground from sinking to cause damage to a municipal drainage pipe network is characterized by comprising the following steps of: the construction method is realized based on a construction device (1) which comprises a grouting opening (1), a grouting machine (2) is arranged at the top of the grouting opening (1), a drain pipe (3) is arranged at the bottom of the grouting opening (1), a concrete layer (4) is arranged on the outer peripheral side of the drain pipe (3), a waterproof soil layer (5) is arranged on the top of the concrete layer (4), an upper impermeable layer (6) is arranged on two sides of the waterproof soil layer (5), an anti-corrosion layer (7) is arranged on one side of the upper impermeable layer (6), a reinforcing rod (8) is arranged on one side of the anti-corrosion layer (7), a foundation layer (9) is arranged at the bottom of the concrete layer (4), a lower impermeable layer (10) is arranged between the concrete layer (4) and the ground base layer (9), a sand pumping port (11) is formed in one side of the foundation layer (9), and a pump body (12) is connected to the outside of the sand pumping port (11);
based on the construction device (1), the construction method comprises the following steps:
firstly, a cutting tool is used for cutting holes matched with the outer dimensions of a waterproof soil layer (5), a concrete layer (4) and a foundation layer (9), and then a sand pumping port (11) connected with a pump body (12) is arranged in a hole on the left side of a Y-shaped hole matched with the foundation layer (9) in a penetrating mode;
step two, starting a pump body (12), pumping sand and soil inside the foundation layer (9), the concrete layer (4) and the waterproof soil layer (5), starting a grouting machine (2) after the sand and soil inside the foundation layer (9) are pumped, injecting broken stones into the foundation layer (9) through a grouting port (1), and injecting the broken stones from the grouting port (1) to fill the inside of the foundation layer (9) to form the foundation layer (9);
thirdly, starting the grouting machine (2) again, injecting an anti-seepage solution into the upper surface of the foundation layer (9) through the grouting port (1), injecting the anti-seepage solution from the grouting port (1), and filling a layer on the upper surface of the foundation layer (9) to form a lower anti-seepage layer (10);
step four, installing a drain pipe, starting the grouting machine (2) again after the installation is finished, and injecting concrete solution into the concrete layer (4) through the grouting opening (1) to form the concrete layer (4);
and fifthly, laying a waterproof geomembrane at the upper end of the concrete layer (4), namely inside the waterproof soil layer (5), and meanwhile, additionally arranging an impermeable layer (6), an anti-corrosion layer (7) and a reinforcing rod (8) at two sides of the waterproof soil layer (5) to reform the structure of the waterproof soil layer (5).
2. The construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence as claimed in claim 1, wherein the construction method comprises the following steps: the foundation course (9) is Y-shaped, and the thickness of the foundation course (9) is larger than that of the concrete layer (4).
3. The construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence as claimed in claim 1, wherein the construction method comprises the following steps: the waterproof soil layer (5) is of a double-layer impermeable membrane structure.
4. The construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence as claimed in claim 1, wherein the construction method comprises the following steps: the reinforcing rods (8) are symmetrically distributed on two sides of the anti-corrosion layer (7), the reinforcing rods (8) are fixedly installed in the foundation through bolts, and the reinforcing rods (8) are made of corrosion-resistant alloy steel materials.
5. The construction method for preventing the municipal drainage pipe network from being damaged by the ground subsidence as claimed in claim 1, wherein the construction method comprises the following steps: one end of the sand pumping port (11) is connected with the pump body (12) through a pipeline, and the other end of the sand pumping port (11) extends into the ground base layer (9).
CN202110318080.5A 2021-03-25 2021-03-25 Construction method for preventing municipal drainage pipe network from being damaged by ground subsidence Pending CN113047397A (en)

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Application Number Priority Date Filing Date Title
CN202110318080.5A CN113047397A (en) 2021-03-25 2021-03-25 Construction method for preventing municipal drainage pipe network from being damaged by ground subsidence

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Application Number Priority Date Filing Date Title
CN202110318080.5A CN113047397A (en) 2021-03-25 2021-03-25 Construction method for preventing municipal drainage pipe network from being damaged by ground subsidence

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204759680U (en) * 2015-07-08 2015-11-11 深圳合创永安智能科技有限公司 Municipal drainage pipe network defense sector falls into device
CN105220704A (en) * 2015-08-28 2016-01-06 国网山东省电力公司莱芜供电公司 A kind of transformer station's ground of settlement by soaking soil
CN205990655U (en) * 2016-08-23 2017-03-01 福建正扬科技有限公司 A kind of urban drainage pipe network defense sector sinking device
CN107217683A (en) * 2017-04-19 2017-09-29 广州市市政工程设计研究总院 A kind of drainage pipeline basis filling anti-collapse structure of antiseepage and its construction method
CN108797759A (en) * 2018-06-15 2018-11-13 中国冶集团有限公司 Hanging soft base underwater dumped rockfill grouting reinforcement method below immersed tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204759680U (en) * 2015-07-08 2015-11-11 深圳合创永安智能科技有限公司 Municipal drainage pipe network defense sector falls into device
CN105220704A (en) * 2015-08-28 2016-01-06 国网山东省电力公司莱芜供电公司 A kind of transformer station's ground of settlement by soaking soil
CN205990655U (en) * 2016-08-23 2017-03-01 福建正扬科技有限公司 A kind of urban drainage pipe network defense sector sinking device
CN107217683A (en) * 2017-04-19 2017-09-29 广州市市政工程设计研究总院 A kind of drainage pipeline basis filling anti-collapse structure of antiseepage and its construction method
CN108797759A (en) * 2018-06-15 2018-11-13 中国冶集团有限公司 Hanging soft base underwater dumped rockfill grouting reinforcement method below immersed tube

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