Experiment device for simulating shield mud membrane formation

An experimental device and mud film technology, which can be used in measurement devices, material inspection products, instruments, etc., and can solve problems such as safety risks and uneconomical

Active Publication Date: 2016-02-17
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Due to the great safety risk and uneconomical of doing field experiments, the experimental research on the stability of the excavated face of the mud shield almost all adopts the indoor experimental method, therefore, the development of the indoor experimental device and related equipment One of the key tasks of stability research

Method used

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  • Experiment device for simulating shield mud membrane formation
  • Experiment device for simulating shield mud membrane formation

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Embodiment Construction

[0037] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0038] Such as figure 1 As shown, the present invention discloses an experimental device for simulating the formation of shield mud film, which device includes a formation simulation box 1, a plexiglass pipeline 5 for simulating a mud bin and a drive for the mud in the plexiglass pipeline 5 The dynamic loading system of force; one end of the plexiglass pipeline 5 is in socket communication with the formation simulation box 1, and the power loading system provides driving force for the mud in the plexiglass pipeline 5 from ...

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Abstract

The invention discloses an experiment device for simulating shield mud membrane formation. The device comprises a stratum simulation box, an organic glass tube for simulating a mud cabin and a power loading system for providing drive power for the mud in the organic glass tube; one end of the organic glass tube is in cup-joint communication with the stratum simulation box, and the power loading system provides drive power for the mud in the organic glass tube from the other end of the organic glass tube. According to the experiment device, inductive analysis is conducted on monitoring parameter change rules in the mud membrane formation process, mud infiltration situation and mud performance qualitative parameters, the main factors for influencing formation of a mud balanced type shield effective mud membrane are found out, and reliable experiment foundation is provided for excavating face stabilization of mud shield construction.

Description

technical field [0001] The invention relates to the technical field of tunnel and underground engineering experimental instruments, in particular to a sleeve-sleeve experimental device for simulating the formation of shield mud film. Background technique [0002] The mud balanced shield method construction is widely used in the construction of subways, road tunnels or large-diameter cross-sea and river-crossing tunnels in shallow soft soil strata. Due to the poor stability of the soft soil layer and the lower part of the river, the geological environment is very complex, resulting in an increasingly severe environment for the excavation of the mud shield. In actual engineering, new problems continue to emerge, and construction safety is seriously threatened. . A large number of engineering practices and theories have shown that the formation of an effective mud film on the excavation surface as a support medium is the key to ensuring its stability. Regarding the formation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/04G01N33/24
CPCG01N13/04G01N33/24
Inventor 张成平蒋龙张顶立韩凯航侯艳娟
Owner BEIJING JIAOTONG UNIV
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