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A super-long shallow-buried construction method for existing pipelines in complex environments

A technology with complex environment and construction methods, applied in earthwork drilling, wellbore lining, tunnel lining, etc., to achieve the effect of firm and safe structure

Active Publication Date: 2017-09-05
CHINA CONSTR SIXTH ENG BUREAU CIVILENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method and structural system of this patent is not applicable to the construction method of shallow buried and underground excavation of existing pipelines. If this patent is applied, it will cause the settlement and displacement of the entire pipeline

Method used

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  • A super-long shallow-buried construction method for existing pipelines in complex environments
  • A super-long shallow-buried construction method for existing pipelines in complex environments
  • A super-long shallow-buried construction method for existing pipelines in complex environments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) The top elevation position of the underground passage 25 set below the pipeline of the road 14 and within the length of the underground passage 25 along the width direction of the road from one side of the road to the other side of the road, a plurality of tunnels are arranged in close proximity to each other The top pipe curtain 1 of each two adjacent top pipe curtains 1 is connected by an angle steel lock; then within the height range of the underground passage 25, at the position of the two side walls of the underground passage 25, along the road width direction from the side of the road To the other side of the road, a plurality of side tube curtains 2 closely arranged up and down are arranged in turn, and every two adjacent side tube curtains 2 are connected by angle steel locks; the top tube curtain 1 and the two sides The outer pipe curtain 2 is composed of multiple sections of steel pipes. When the jacking of one section of steel pipes is completed and the ne...

Embodiment 2

[0070] (1) The top elevation position of the underground passage 25 set below the pipeline of the road 14 and within the length of the underground passage 25 along the width direction of the road from one side of the road to the other side of the road, a plurality of tunnels are arranged in close proximity to each other The top pipe curtain 1 of each two adjacent top pipe curtains 1 is connected by an angle steel lock; then within the height range of the underground passage 25, at the position of the two side walls of the underground passage 25, along the road width direction from the side of the road To the other side of the road, a plurality of side tube curtains 2 closely arranged up and down are arranged in turn, and every two adjacent side tube curtains 2 are connected by angle steel locks; the top tube curtain 1 and the two sides The outer pipe curtain 2 is composed of multiple sections of steel pipes. When the jacking of one section of steel pipes is completed and the ne...

Embodiment 3

[0088] (1) The top elevation position of the underground passage 25 set below the pipeline of the road 14 and within the length of the underground passage 25 along the width direction of the road from one side of the road to the other side of the road, a plurality of tunnels are arranged in close proximity to each other The top pipe curtain 1 of each two adjacent top pipe curtains 1 is connected by an angle steel lock; then within the height range of the underground passage 25, at the position of the two side walls of the underground passage 25, along the road width direction from the side of the road To the other side of the road, a plurality of side tube curtains 2 closely arranged up and down are arranged in turn, and every two adjacent side tube curtains 2 are connected by angle steel locks; the top tube curtain 1 and the two sides The outer pipe curtain 2 is composed of multiple sections of steel pipes. When the jacking of one section of steel pipes is completed and the next...

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Abstract

The invention discloses an ultra-long shallow-buried excavation construction method for an existing pipeline in a complex environment. The method includes the following steps of firstly, arranging multiple top pipe curtains at the top elevation position of an underground passageway arranged along the portion below the pipeline of a road in a penetrating mode; secondly, arranging multiple side portion pipe curtains at the positions of the two side walls of the underground passageway within the height range of the underground passageway; thirdly, conducting soil body grouting in the internal area defined by the top pipe curtains and the side portion pipe curtains of the underground passageway; fourthly, pouring concrete on the wall face of the passageway after the internal area defined by the top pipe curtains and the side portion pipe curtains of the underground passageway is divided into a first guide hole, a second guide hole and a third guide hole for excavation and waterproofing is conducted on the side walls and the top wall. By means of the method, it is ensured that the whole construction process is conducted under the condition that safety is monitored.

Description

technical field [0001] The invention relates to a construction method of shallow burial and underground excavation, in particular to a construction method of shallow burial and underground excavation of existing pipelines. Background technique [0002] In recent years, due to the development and utilization of underground space, there have been a large number of structural projects passing through existing pipelines and roads. Under the busy highway and under the normal use of underground pipelines, when constructing underground projects such as crossing passages, the construction method of underground excavation is often used. Usually, the excavation section is designed as an arched structure, and the force is easier to control. However, for running highways and rectangular shallow buried passages under normal use of underground pipelines, special factors such as the impact of vehicle dynamic loads and pipeline sinking lead to construction risks and difficulties, especiall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D11/14E21D11/15E21D11/10E21D11/38
CPCE21D9/00E21D9/001E21D11/10E21D11/14E21D11/152E21D11/38
Inventor 王丽梅袁银书张云富王安鑫辛猛
Owner CHINA CONSTR SIXTH ENG BUREAU CIVILENG
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