Pipe jacking construction technology through water-mud balance

A technology of construction technology and mud-water balance, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems affecting the jacking construction of pipe jacking machines, affecting the construction process, and slow jacking speed, so as to achieve fast construction progress and improved The most unearthed and the effect of reducing land subsidence

Active Publication Date: 2017-08-18
ZHEJIANG BAOTIAN ENVIRONMENT CONSTR CO LTD
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  • Abstract
  • Description
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Problems solved by technology

The content of pebbles at the excavation to the depth of the pipe jacking reaches 20%, and the largest particle size is 30cm. The hardness is very high, and it is difficult to break it with a 4-pound hand hammer, which greatly affects the jacking construction of the pipe jacking machine. The jacking speed is slow and the subsidence is serious, which affects the construction process

Method used

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  • Pipe jacking construction technology through water-mud balance
  • Pipe jacking construction technology through water-mud balance
  • Pipe jacking construction technology through water-mud balance

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings of the description, but the protection of the present invention is not limited thereto:

[0032] Such as Figure 1-4 As shown, a pipe jacking construction process using mud-water balance in the present invention, its jacking construction process is as follows: preparation work for jacking construction; equipment installation and debugging; pipe jacking machine out of the hole; Water pipes and various pipelines; jacking until the jacking of a pipe section ends; retract the main jacking jack, remove the water inlet and outlet pipes and various pipelines, and hang the next pipe section; connect the water inlet pipe, water outlet pipe and various pipelines, Jacking; follow this cycle; hang the first relay room and jack it; hoist pipe joints; Pipe joints; follow this cycle until the next relay room is hoisted; pipe joints are hoisted; the first relay room is jacked; the secon...

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Abstract

The invention discloses a pipe jacking construction technology through water-mud balance. The pipe jacking construction technology comprises the steps of construction preparation, equipment mounting and debugging, pipe jacking machine out of a hole, pipe section jacking construction, intermediate jacking station jacking construction, main top jacking and the like, and circulation is conducted till jacking is finished. Through the construction technology, construction is conducted especially aiming at the specific soil texture of the pipe jacking construction technology, the operation difficulty is greatly reduced, the maximum amount of excavation is increased, the construction technology is easy, the construction progress is quick, the construction difficult problems such as ground subsidence are controlled within the range stipulated by standards, and the construction technology is suitable for being applied and popularized.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a mud-water balance pipe jacking construction process with short construction period, high efficiency and controllable ground settlement within the scope specified in the code. Background technique [0002] At present, part of the pipe jacking method uses caisson construction in the pipe jacking working well, and the receiving well is the existing well. The geotechnical investigation of the caisson site is as follows: 1st layer of miscellaneous fill: variegated, mainly brown-gray, slightly wet, loose, containing 25% to 30% of brick fragments, broken gravel, and a small amount Household garbage, filled with silt. The elevation of the layer is 5.59-4.39m, and the layer thickness is 0.70-1.4m; the first layer of sandy silt: grayish yellow, wet, slightly dense, containing iron oxide and a small amount of mica debris. Low dry strength, low toughness, quick ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/10
Inventor 吴添财王静安王春成周旭康徐晓源吴子淼潘闽华王建华
Owner ZHEJIANG BAOTIAN ENVIRONMENT CONSTR CO LTD
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