CN111042293A - Construction process of road central green belt seepage-proofing drainage structure - Google Patents

Construction process of road central green belt seepage-proofing drainage structure Download PDF

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Publication number
CN111042293A
CN111042293A CN201911150582.0A CN201911150582A CN111042293A CN 111042293 A CN111042293 A CN 111042293A CN 201911150582 A CN201911150582 A CN 201911150582A CN 111042293 A CN111042293 A CN 111042293A
Authority
CN
China
Prior art keywords
road
green belt
seepage
water
collecting tank
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
Application number
CN201911150582.0A
Other languages
Chinese (zh)
Inventor
何若许
夏东
张爱平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Yonglian Jingzhu Construction Group Co Ltd
Original Assignee
Jiangsu Yonglian Jingzhu Construction Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Yonglian Jingzhu Construction Group Co Ltd filed Critical Jiangsu Yonglian Jingzhu Construction Group Co Ltd
Priority to CN201911150582.0A priority Critical patent/CN111042293A/en
Publication of CN111042293A publication Critical patent/CN111042293A/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
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • E01C11/227Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

The invention discloses a construction process of an anti-seepage drainage structure of a central green belt of a road, wherein a protective layer is laid below the green belt and comprises anti-seepage geotextile, emulsified asphalt and cement mortar surfaces, medium coarse sand of upper and lower water-permeable geotextiles is also laid above a water outlet, the anti-seepage effect is good, water falling into the green belt can be drained into a rainwater well through a PVC pipe through a soft water-permeable pipe, the problems that the water in the green belt invades a roadbed base layer, damages the road base and causes pits and collapse on the road surface are avoided, and the normal use of the road is ensured.

Description

Construction process of road central green belt seepage-proofing drainage structure
Technical Field
The invention belongs to the technical field of road engineering, and particularly relates to a construction process of an anti-seepage drainage structure of a road central green belt.
Background
In urban main roads and express roads, a central road separation zone is generally arranged, and a central green belt and a central separation fence are mainly used. The central green belt can effectively avoid the influence on the light of the vehicles on the lane when the vehicles drive at night, reduce the situation that the pedestrians and the vehicles cross the road, relieve the visual fatigue of the driver and greatly increase the traffic safety of the road. The central green belt can beautify the environment, improve the air quality and improve the image of urban roads.
The design of the existing road central green belt is generally higher than the road surface, if heavy rain exists, excessive water in the green belt can not be discharged, the excessive water can invade a roadbed base layer, the road base is damaged, the problems of potholes and collapse and the like on the road surface are caused, and the normal use of the road is influenced, so that improvement is needed.
Disclosure of Invention
In order to solve the problems, the invention discloses a construction process of an anti-seepage drainage structure of a central green belt of a road, the drainage structure can timely drain excessive water in the green belt, the problems that the water in the green belt invades a roadbed base layer, damages are caused to a road foundation, pits and collapse occur on a road surface and the like are avoided, and the normal use of the road is ensured.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a construction process of an anti-seepage drainage structure of a road central green belt comprises the following steps:
(1) leveling and compacting the central dividing strip;
(2) excavating a drainage blind ditch;
(3) excavating a water collecting tank at the position of a reserved transverse drainage pipe, wherein the water collecting tank is generally arranged in the middle;
(4) cement mortar plastering is carried out on the bottom surface and the inclined surface of the whole median strip, and emulsified asphalt is coated on the plastering;
(5) laying impermeable geotextile on the whole median zone;
(6) sealing the outer side of the three-way pipe at the position of the water collecting tank by using asphalt hemp threads and then inserting the three-way pipe into the reserved pvc drain pipe;
(7) arranging soft water permeable pipes in the blind ditch and communicating the soft water permeable pipes with a three-way pipe in the water collecting tank;
(8) filling broken stones in the blind ditch and the water collecting tank and compacting;
(9) paving permeable geotextile on the top surface of the gravel;
(10) backfilling medium coarse sand with the thickness of 20cm, and compacting;
(11) paving permeable geotextile on the top surface of the medium coarse sand;
(12) and (5) backfilling green earthwork, wherein the earthwork is higher than the road surface.
As an improvement of the invention, the soft water permeable pipe is downwards inclined to communicate with the three-way pipe.
As an improvement of the invention, the number of the soft water-permeable pipes is 1-4.
The invention has the beneficial effects that:
according to the construction process of the road central green belt seepage-proofing drainage structure, the drainage structure can timely drain excessive water in the green belt, the problems that water in the green belt invades a roadbed base layer, damages are caused to a road foundation, pits and collapse occur on a road surface and the like are avoided, and normal use of a road is ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure. The construction process of the road central green belt seepage-proofing drainage structure comprises the following steps:
(1) leveling and compacting the central dividing strip;
(2) excavating a drainage blind ditch;
(3) excavating a water collecting tank at the position of a reserved transverse drainage pipe, wherein the water collecting tank is generally arranged in the middle;
(4) cement mortar plastering is carried out on the bottom surface and the inclined surface of the whole median strip, and emulsified asphalt is coated on the plastering;
(5) laying impermeable geotextile on the whole median zone;
(6) sealing the outer side of the three-way pipe at the position of the water collecting tank by using asphalt hemp threads and then inserting the three-way pipe into the reserved pvc drain pipe;
(7) 1-4 soft water permeable pipes are arranged in the blind ditch and are downwards inclined to be communicated with a three-way pipe;
(8) filling broken stones in the blind ditch and the water collecting tank and compacting;
(9) paving permeable geotextile on the top surface of the gravel;
(10) backfilling medium coarse sand with the thickness of 20cm, and compacting;
(11) paving permeable geotextile on the top surface of the medium coarse sand;
(12) and (5) backfilling green earthwork, wherein the earthwork is higher than the road surface.
The soft permeable pipe is a novel pipe with the functions of back filtering and water permeating (draining), integrates the capillary phenomenon and the siphon principle, integrates water absorbing, water permeating and water draining, can make water permeating from medium and coarse sand flow into a pvc water draining pipe, has the functions of pressure resistance, water permeating and back filtering, is not fractured due to geological and geographical temperature changes, can achieve the effect of discharging clean water, and does not cause secondary pollution to the environment.
According to the invention, the protective layer is laid below the green belt, and comprises the anti-seepage geotextile, the emulsified asphalt and the cement mortar surface, the medium coarse sand with the upper and lower permeable geotextiles is also laid above the water outlet, the anti-seepage effect is good, water falling into the green belt can be discharged into a rainwater well through the PVC pipe through the soft permeable pipe, the problems that the water in the green belt invades the roadbed base layer, the road foundation is damaged, the road surface is provided with pits and sinks and the like are solved, and the normal use of the road is ensured.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims (3)

1. A construction process of a road central green belt seepage-proofing drainage structure is characterized in that: the method comprises the following steps:
(1) leveling and compacting the central dividing strip;
(2) excavating a drainage blind ditch;
(3) excavating a water collecting tank at the position of a reserved transverse drainage pipe, wherein the water collecting tank is generally arranged in the middle;
(4) cement mortar plastering is carried out on the bottom surface and the inclined surface of the whole median strip, and emulsified asphalt is coated on the plastering;
(5) laying impermeable geotextile on the whole median zone;
(6) sealing the outer side of the three-way pipe at the position of the water collecting tank by using asphalt hemp threads and then inserting the three-way pipe into the reserved pvc drain pipe;
(7) arranging soft water permeable pipes in the blind ditch and communicating the soft water permeable pipes with a three-way pipe in the water collecting tank;
(8) filling broken stones in the blind ditch and the water collecting tank and compacting;
(9) paving permeable geotextile on the top surface of the gravel;
(10) backfilling medium coarse sand with the thickness of 20cm, and compacting;
(11) paving permeable geotextile on the top surface of the medium coarse sand;
(12) and (5) backfilling green earthwork, wherein the earthwork is higher than the road surface.
2. The construction process of the seepage-proofing and drainage structure of the road central green belt according to claim 1 is characterized in that: the soft water permeable pipe is downwards inclined to be communicated with the three-way pipe.
3. The construction process of the seepage-proofing and drainage structure of the road central green belt according to claim 1 is characterized in that: the number of the soft water permeable pipes is 1-4.
CN201911150582.0A 2019-11-21 2019-11-21 Construction process of road central green belt seepage-proofing drainage structure Pending CN111042293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911150582.0A CN111042293A (en) 2019-11-21 2019-11-21 Construction process of road central green belt seepage-proofing drainage structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911150582.0A CN111042293A (en) 2019-11-21 2019-11-21 Construction process of road central green belt seepage-proofing drainage structure

Publications (1)

Publication Number Publication Date
CN111042293A true CN111042293A (en) 2020-04-21

Family

ID=70232160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911150582.0A Pending CN111042293A (en) 2019-11-21 2019-11-21 Construction process of road central green belt seepage-proofing drainage structure

Country Status (1)

Country Link
CN (1) CN111042293A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648199A (en) * 2020-05-26 2020-09-11 中冶南方城市建设工程技术有限公司 Water drainage structure system is prevented to city reconstruction road central authorities' median
CN112663541A (en) * 2020-12-22 2021-04-16 浙江交工集团股份有限公司 Installation and construction method for ecological prefabricated guardrail of central separation zone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010087582A (en) * 2000-03-07 2001-09-21 장필립 Establish method for bicycle driveway
CN202913366U (en) * 2012-11-12 2013-05-01 中交第二公路勘察设计研究院有限公司 Device for repairing waterproof and drainage capacity of original medial strip of road in non-excavation manner
CN207775642U (en) * 2018-01-17 2018-08-28 兰州石化职业技术学院 A kind of water-saving greening type median strip of pressure sand
CN108643317A (en) * 2018-05-16 2018-10-12 安徽省交通控股集团有限公司 A kind of discharge structure for superelevation road section surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010087582A (en) * 2000-03-07 2001-09-21 장필립 Establish method for bicycle driveway
CN202913366U (en) * 2012-11-12 2013-05-01 中交第二公路勘察设计研究院有限公司 Device for repairing waterproof and drainage capacity of original medial strip of road in non-excavation manner
CN207775642U (en) * 2018-01-17 2018-08-28 兰州石化职业技术学院 A kind of water-saving greening type median strip of pressure sand
CN108643317A (en) * 2018-05-16 2018-10-12 安徽省交通控股集团有限公司 A kind of discharge structure for superelevation road section surface

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
中国水电金山湾生态城基础设施项目总承包部: "《百度文库》", 10 April 2016 *
赵振乾: "关于高速公路工程的排水设计", 《交通标准化》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648199A (en) * 2020-05-26 2020-09-11 中冶南方城市建设工程技术有限公司 Water drainage structure system is prevented to city reconstruction road central authorities' median
CN112663541A (en) * 2020-12-22 2021-04-16 浙江交工集团股份有限公司 Installation and construction method for ecological prefabricated guardrail of central separation zone

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Application publication date: 20200421