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Indoor test simulation device and method for pipe pulling and jacking construction

An indoor test and simulation device technology, applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of complex grouting conduit layout, etc., and achieve the effect of reasonable structure and easy operation

Pending Publication Date: 2022-02-01
中交四航局第七工程有限公司 +3
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, it adopts the method that the grouting conduit is pre-buried in the pipeline to be tested and communicated with the grouting hole of the pipeline wall, and the arrangement of the grouting conduit is relatively complicated

Method used

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  • Indoor test simulation device and method for pipe pulling and jacking construction
  • Indoor test simulation device and method for pipe pulling and jacking construction
  • Indoor test simulation device and method for pipe pulling and jacking construction

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Embodiment 1

[0037] Such as figure 1 , figure 2 As shown, Embodiment 1 of the present invention provides a kind of indoor test simulation device of jacking pipe construction, comprises box body 1, and its top surface is opened and arranged, and vertical loading mechanism is arranged above, through vertical loading mechanism to box body The test soil 2 placed in 1 applies a vertical load. The two opposite sides of the box body 1 are provided with a circular top hole 3, and a simulated pipe 4 for simulating construction pipe jacking is inserted in the circular top hole 3, and the two ends of the simulated pipe 4 can pass through the circular top holes on both sides 3. One of the circular top holes 3 is provided with a grouting assembly, and the outer surface of the simulated pipeline 4 is sprayed during the loading process, so that the outer wall of the simulated pipeline 4 is covered with a layer of lubricating mud. A horizontal loading mechanism is provided on the outside of the circul...

Embodiment 2

[0046] Embodiment 2 of the present invention provides a kind of indoor test simulation method of jacking pipe construction, adopts the simulation device that embodiment 1 provides, comprises the following steps:

[0047] Step 1. According to the test requirements, fill the test soil 2 into the box 1 in layers and compact it. During the filling process, the earth pressure cell 30, the inclinometer 31 and the displacement sensor 32 are installed accordingly. The inclinometer tube 31 is installed vertically, the earth pressure cell 30 is installed in the soil below the rigid loading plate 17, in the soil near the side wall of the box body 1 and in the soil around the simulated pipe 4, and the displacement sensor 32 adopts a magnetic The telescopic linear displacement sensor is composed of a measuring rod, an electronic compartment and a non-contact magnetic ring set on the measuring rod. Before filling the soil, the measuring rod is vertically placed on the bottom plate of the box...

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Abstract

The invention provides an indoor test simulation device for pipe pulling and jacking construction. The device comprises a transparent box body, the top surface of the box body is open, a vertical loading mechanism is arranged above the box body, a test soil body is arranged in the box body, two opposite side surfaces of the box body are both provided with circular top holes, and simulation pipelines are inserted into the circular top holes; and the two ends of the simulation pipeline can penetrate out of the circular top holes in the two sides, a guniting assembly is arranged at one circular top hole, and a first horizontal loading mechanism and a second horizontal loading mechanism are arranged on the outer side of the circular top hole, located on the two sides of the box body correspondingly and used for loading the two ends of the simulation pipeline. In the test soil body, the vertical loading mechanism and the horizontal loading mechanisms are all provided with measuring devices, relevant parameters needed by the test are comprehensively and accurately measured by means of the measuring devices, the test purpose is well achieved, and a model experiment for simulating stratum deformation caused by pipe pulling and jacking construction under multiple on-site conditions and determining the optimal proportion of lubricating mud can be carried out.

Description

technical field [0001] The invention relates to the technical field of pipe jacking construction, in particular to an indoor test simulation device and method for pipe jacking construction. Background technique [0002] As the pace of my country's urban infrastructure construction and transformation continues to accelerate, the transformation and management of urban sewage pipe networks are related to the efficiency of sewage collection and the quality of residents' living and working environments. Accelerating the transformation of urban sewage pipe network and continuously improving the management level of sewage pipe network are of great significance to improving the urban environment and improving the comprehensive competitiveness of cities and towns. Conventional trenchless municipal pipeline laying methods use pipe jacking construction method and directional drilling traction construction method, but both methods have limitations. The pipe jacking construction is a ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/06G01N3/02
CPCG01N3/12G01N3/062G01N3/02G01N2203/0003G01N2203/0019G01N2203/0048G01N2203/0676G01N2203/0682
Inventor 欧雪峰王磊屈星韩卫东胡军然黎大鹏牛文宣徐云浦唐辉湘梅勇武坤鹏陈鹏康哲
Owner 中交四航局第七工程有限公司
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