Underwater tunnel shield construction excavation face stability evaluation method, system and equipment

A technology for underwater tunnels and evaluation methods, which is applied in data processing applications, predictions, instruments, etc., and can solve problems such as damage to surrounding buildings, instability of excavation surfaces, and shield machine headings

Pending Publication Date: 2019-10-25
SHANDONG UNIV +1
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Problems solved by technology

Maintaining the stability of the excavation surface during shield excavation is the key to ensuring construction safety. Once the excavation surface is unstable, it will cause excessive deformation of the soil or even collapse, resulting in a series of serious consequences such as damage to surrounding buildings.
Large-diameter shield tunnels are faced with complex hydrogeology, and the excavation plan is difficult to implement, and it is prone to safety accidents such as the ins

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  • Underwater tunnel shield construction excavation face stability evaluation method, system and equipment
  • Underwater tunnel shield construction excavation face stability evaluation method, system and equipment
  • Underwater tunnel shield construction excavation face stability evaluation method, system and equipment

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[0033] The disclosure will be further described below in conjunction with the drawings and embodiments.

[0034] It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present disclosure. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs.

[0035] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate There are features, steps, operations, devices, c...

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Abstract

The invention provides an underwater tunnel shield construction excavation face stability evaluation method, system and equipment, and the method comprises the steps: determining an excavation face stability evaluation index based on a shield construction excavation face instability mechanism; dividing the stability of the excavation surface into a plurality of grades, establishing each grade space, and determining the quantitative interval of each evaluation index in each grade; calculating a combined weight of each stability evaluation index by adopting a combined weighting method, and taking the combined weight as a judgment basis of the influence of the evaluation indexes on an evaluation result; and constructing an ideal point evaluation function by adopting an ideal point method so as to represent the membership degree of the to-be-evaluated object to each grade, calculating the grade membership degree of the to-be-evaluated section in each grade of the evaluation system, and determining the stability grade of the excavation surface in the construction process of the evaluation section.

Description

technical field [0001] The disclosure belongs to the field of tunnel shield construction, and relates to a method, system and equipment for evaluating the stability of an excavation surface of an underwater tunnel shield construction. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Due to its small impact on the surrounding environment, the shield construction technology has become the main method for the construction of urban subway tunnels in soft soil areas. The study of the mechanical behavior during the construction process of the shield method has important engineering application value. Among them, the stability of the excavation surface has always been the most important issue in shield tunneling construction. Keeping the stability of the excavation surface basically guarantees the safe and smooth construction of the shield tunnel...

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/04G06F17/50G06Q50/08
CPCG06Q10/0635G06Q10/04G06Q50/08G06F30/20
Inventor 薛翊国李欣谭现锋孙衍建甄洪帅邱道宏李广坤屈聪
Owner SHANDONG UNIV
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