Detection method and system for seismic dynamic response impact partition of multi-level intersection tunnel

A technology of dynamic response and detection method, which is applied in the direction of earth drilling, mining equipment, mining equipment, etc., and can solve problems such as the inability to estimate the degree of mutual influence of three-dimensional intersection tunnels

Active Publication Date: 2020-07-14
CENT SOUTH UNIV
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Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a detection method and system for the seismic dynamic response impact zone of a three-dimensional intersection tunnel, which solves the problem that the mutual influence degree of the three-dimensional intersection tunnel under the seismic load cannot be checked before the construction of the intersection tunnel in the prior art. Estimated technical issues

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  • Detection method and system for seismic dynamic response impact partition of multi-level intersection tunnel
  • Detection method and system for seismic dynamic response impact partition of multi-level intersection tunnel
  • Detection method and system for seismic dynamic response impact partition of multi-level intersection tunnel

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with embodiment.

[0050] figure 1 It is a schematic block diagram of the principle of the detection device used in the preferred embodiment of the present invention for the detection device of the seismic dynamic response affected zone of the grade intersection tunnel. refer to figure 1 In the present invention, the detection device for the seismic dynamic response of tunnels at grade intersections includes: a receiving unit 100, a first calculation unit 200, and a comparison and judgment unit 300.

[0051] The receiving unit 100 is used to receive the first data, and the first data includes: surrounding rock level, cross clear distance, crossing angle, surrounding rock soft-hard ratio, and the inclination angle of surrounding rock soft-hard interface; wherein, the surrounding rock level takes the established No. The surrounding rock level of the formation where the tunnel is located, in this embodi...

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Abstract

The invention discloses a detection method and system for partitioning for influence on earthquake dynamic response of three-dimensional crossing tunnels. The detection method for partitioning includes: first data is received, wherein the first data includes a surrounding rock level, crossing clearance, a crossing angle, a soft-hard ratio of surrounding rock, and an inclination angle of a soft andhard interface of the surrounding rock; earthquake dynamic response degree algebraic value in the position to be detected on a built first tunnel is obtained according to the first data; comparison is performed on the earthquake dynamic response degree algebraic value in the position to be detected on the first tunnel obtained by calculating and partitioning benchmark value stored in advance, anda partitioning grade of the position to be detected is determined. When a new underpass or overpass tunnel is designed or constructed near the built tunnel, prediction or analysis of the change of earthquake dynamic response risk of the built tunnel caused by the newly-built tunnel is realized in advance, the influence degree is clear, and the range of the possible influence area is estimated.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a detection method and system for the seismic dynamic response impact zone of a three-dimensional intersection tunnel. Background technique [0002] Compared with single-hole and multi-hole parallel tunnels, the structural stress and surrounding rock deformation of the three-dimensional intersection tunnel affect the construction safety and structural stability during operation. A lot of research work has been done on this issue. For example, patents [ZL 2014 1 0004775.6], [ZL 2014 10005078.2], [ZL 2014 1 0004729.6], [ZL 2014 1 0004817.6], and [ZL 2014 1 0005077.8] are respectively aimed at the construction monitoring and measurement technology of interchange tunnels, considering The degree of mutual influence between the static unloading effect of construction excavation, the ground vibration effect of construction blasting and the vibration effect of trains during the operat...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/00
CPCE21F17/00
Inventor 雷明锋华成亚刘聪施成华李玉峰
Owner CENT SOUTH UNIV
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