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Small-bore long distance curved pipe jacking method

A small-caliber, curved technology, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve problems such as traffic obstruction, and achieve high social benefits, less damage, and less man-hours

Active Publication Date: 2011-04-27
大有环境有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a small-diameter ultra-long-distance curved pipe jacking method, which can make the small-diameter long-distance sharp turn construction possible, which has good economic benefits and high construction precision, and successfully solves the traffic obstruction and other environments question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0057] Example 1. The sewage pipeline project of the east section of Xinchangjiang City

[0058] The sewage pipeline project of the east section of the Xinchang River City is mainly to collect the industrial sewage from the Xinchang County Pharmaceutical Factory, Xinhecheng Co., Ltd. and other enterprises in the east section of Xinchang County to the proposed Ru'ao Town sewage treatment plant through the sewage pipeline of this project. Because this sewage pipeline project needs to continuously cross the Xinchang River and the factory block along the river at stake K2+080~K3+100, and this crossing section is to ensure the stability and safety of the original building, at the intersection of stake K2+ A circular curve with a radius of 1500m (L-607.055m, a=23°11′16″) is set at 384.676.

[0059] The construction of this project started in July 2007 and was completed for acceptance in February 2008. The design sewage pipe diameter is The steel pipes are buried deep and 16 meters thic...

example 2

[0067] Example 2. Sewage treatment project of Pudong Road, Pukou District, Nanjing City

[0068] The sewage treatment project of Pudong Road, Pukou District, Nanjing is a major water environment construction project in Nanjing, which is subordinate to the main sewage treatment project. The project is located in a prosperous business district of the city. The sewage pipelines mainly run along the busy Pudong Road. The underground pipelines are intricate and complex, including gas pipelines, water pipelines, communication pipelines, and fire-fighting pipelines. There are dense buildings along the line, and there is a 220kV underground high-voltage cable. The construction method of sewage pipeline is pipe jacking, the total length of the pipeline is 1085m, and the pipe diameter is For steel pipes, the elevation of the bottom of the top pipe is -5.00-6.00m, and the buried depth is 9.42-11.25m. Among them, the radius of curvature of the curve jacking pipe is 900m, and the total leng...

example 3

[0082] Example 3. Road and sewage pipeline project of Changchun Road, Wuhu Economic and Technological Development Zone

[0083] The road and sewage pipeline project of Changchun Road in Wuhu Economic and Technological Development Zone is located on Changchun Road with heavy traffic. It is close to North Changjiang Road, with Shunchang Industry and Trade Company, Beitong Chery Planning and Design Institute and Chery Automobile Co., Ltd. in the west, Pujiang Road, Yinhu North Road, and Zhujiang Road to the east, Guoxin Hotel, Dajiang Automotive Electronics Company, Enterprise companies such as Knauf Gypsum Board Company and Xinke New Material Company have a large traffic flow, and saving construction time is the best social benefit. Therefore, this project adopts the curved pipe jacking construction technique for the main sewage pipeline of Pujiang Road-Zhujiang Road. Design sewage pipe diameter of this section The steel pipe has a total length of 1020m, among which a circular cu...

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Abstract

The present invention discloses a small-bore long distance curved pipe jacking method, belonging to the technical field of architectural construction, and comprising the following steps: constructing a working well; mounting construction equipment; leading in a measuring axis and a benchmark; taking the jacking tubes in position; jacking; grouting; constructing pipelines in the working well; and finishing the cleaning; the construction equipment comprises a development machine, a curved guide machine with an automatic measurement system, a jack and a pump cylinder, wherein the curved guide machine is connected to a back end of the development machine; the jack is mounted in the working well; the pump cylinder is mounted in a duct of the curved guide machine; the pump cylinder is used for conveying thixotropic mud to between an outer wall of the jacking tube and a soil body via a slip casting tube; during the jacking procedure, the adjacent jacking tubes are connected by a pipe joint sleeve. The method of the present invention enables the prior impossible small-bore long distance quick turn construction to be possible; the economic benefit is good, and construction precision is high; the environment problems like traffic obstruction and the like are solved successfully.

Description

Technical field [0001] The invention discloses a small-diameter and ultra-long-distance curved pipe jacking method, which belongs to the technical field of building construction. Background technique [0002] Pipe jacking technology is an underground pipeline construction method, which can pass through ground buildings, underground buildings, highways, rivers, etc. The existing pipe jacking technologies mainly include large-diameter curved pipe jacking technology, large-diameter linear pipe jacking technology, and small-diameter linear pipe jacking technology. Large-diameter curved pipe jacking is mostly for construction workers who can enter the pipe jacking for measurement and other operations. Therefore, when long-distance curved construction is required, economic benefits are often sacrificed. Summary of the invention [0003] The invention provides a small-diameter and ultra-long-distance curved pipe jacking method, which can make the previously impossible small-diameter and...

Claims

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Application Information

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IPC IPC(8): F16L1/00
Inventor 吕伟国梁青林杨良军王祎锋吕新明梁小龙董泰隆张宝昆
Owner 大有环境有限公司
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