Security risk early warning measurement and judgment method of foundation pit tunnel engineering

A tunnel engineering and safety risk technology, applied in the field of intelligent measurement and judgment, can solve problems such as single basis, large randomness, scientificity, rationality and timeliness to be strengthened

Active Publication Date: 2015-11-25
BEIJING AGILETECH ENG CONSULTANTS
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Problems solved by technology

However, due to the complexity and unpredictability of underground engineering, urban rail transit projects mainly based on foundation pit tunnels have been based on monitoring data and early warning indicators for a certain type of monitoring items for many years, combined with expert experience and on-site Consultation, verification and other post-work, carry out early warning and disposal of such monitoring items, without comprehensively considering the simultaneous early warning and t

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  • Security risk early warning measurement and judgment method of foundation pit tunnel engineering
  • Security risk early warning measurement and judgment method of foundation pit tunnel engineering
  • Security risk early warning measurement and judgment method of foundation pit tunnel engineering

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Embodiment Construction

[0047] In order to further illustrate the technical means and effects of the present invention to achieve the intended purpose of the invention, the structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0048] Such as Figure 2-10 Shown is an embodiment of the present invention. This embodiment includes five three-level indicator parameters (i.e. monitoring items) and the next level (four-level) indicator parameters (i.e., cumulative change amount early warning and change rate early warning). Is: W 333-1 —Surface subsidence; W 333-2 —Pipeline deformation; W 333-3 —Support axial force; W 333-4 —Horizontal displacement of pile top; W 333-5 -Deformation of the pile.

[0049] Figure 5 What is recorded is the time history change curve and the warning situation of the supporting axial force measuring point ZL-07-03. It can be seen that the speed and the cumulative value are far...

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Abstract

The invention discloses a security risk early warning measurement and judgment method of foundation pit tunnel engineering. According to the practical monitoring data of each monitoring program of the foundation pit tunnel engineering and various influence factors including an early warning factor, an early warning amount and the like of each monitoring program, mining analysis is carried out through methods including hierarchy analysis, fuzzy comprehensive evaluation and the like, a security state discrimination or risk prediction matrix method under various influence factors is established, a security risk or early warning situation of the engineering is calculated and judged, the oneness, the subjectivity and the retardance of the security risk early warning level discrimination of the engineering are overcome, the information construction, the security risk dynamic control, the early warning, the response and the disposal of the engineering can be effectively guided, the scientificity, the rationality and the standardization of the security risk early warning of the engineering in the foundation pit tunnel engineering can be realized, and the security risk precontrol and management level of foundation pit tunnel construction is improved.

Description

Technical field [0001] The invention relates to an intelligent measurement and judgment method for the safety risk early warning of foundation pit tunnel engineering based on engineering monitoring data and its early warning indicators, in particular to a classification of the safety state of the surrounding support structure and its early warning during the construction of urban track foundation pit tunnel engineering Intelligent measurement and judgment method of response, disposal and pre-control management. Background technique [0002] Currently, my country's urban rail transit planning and construction has entered a period of vigorous development. Urban rail transit is located in complex urban environmental conditions, geological and rock-soil conditions, and the project construction risks are prominent. Due to improper design, construction or inadequate information management, the new rail transit project’s surrounding support structure cracks, tilts, slips, and Collapse ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 徐耀德祝建勋王辰宇侯桐王磊
Owner BEIJING AGILETECH ENG CONSULTANTS
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