Device for simulating harm of activities of ground fissures to high-speed rail bridge

A technology for simulating devices and ground fissures, applied in measuring devices, testing of machines/structural components, instruments, etc., can solve problems such as hazard models, inability to predict the hazards of ground fissures in time, lack of ground fissures, etc., and achieve the effect of accurate hazards

Inactive Publication Date: 2014-06-04
CHANGAN UNIV
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Problems solved by technology

[0004] In the prior art, there is a lack of models for the hazards of ground f

Method used

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  • Device for simulating harm of activities of ground fissures to high-speed rail bridge

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Embodiment Construction

[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0012] figure 1 The structure of the ground fissure hazard simulation device provided by the embodiment of the present invention is shown, and the details are as follows:

[0013] The lifting system 11 is used to control the lifting of the upper and lower plates of the ground fissure and the lifting speed of the subsidence platform to simulate the activity of the ground fissure;

[0014] In the embodiment of the present invention, the lifting system mainly consists of jacks.

[0015] In the embodiment of the present invention, the jack at the upper wall position is used to control the lowering of...

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Abstract

The invention discloses a device for simulating harm of activities of ground fissures to a high-speed rail bridge, and belongs to the field of geological disaster analysis. The device comprises a lifting system used for controlling lifting of a ground fissure hanging wall and footwall and the lifting speed of a settlement platform and simulating the activities of the ground fissures, a supporting system used for supporting the lifting system to carry out lifting on the ground fissure hanging wall and footwall, and a monitoring system used for monitoring dislocation, deformation and bridge foundation stress characteristics of a high-speed rail bridge model. Changes of stress in the high-speed rail bridge, bridge deformation and damage zone ranges and unstability and interaction between the bridge and a rail are taken into consideration under the action of different activities of the ground fissures, scientific bases are provided for engineering control measures for sections crossing the ground fissures of the high-speed rail bridge, and meanwhile the harm of the ground fissures to the high-speed rail bridge can be more accurately forecasted.

Description

technical field [0001] The invention relates to the field of geological disaster analysis, in particular to a device for causing damage to high-speed rail bridges caused by ground fissure activities. Background technique [0002] Ground fissures are a geological phenomenon in which surface rocks and soils are cracked under the action of natural or human factors, and cracks of a certain length and width are formed on the ground. When this phenomenon occurs in areas with human activities, it can be become a geological disaster. There are many factors for the formation of ground fissures. Generally speaking, large ground fissures refer to structural ground fissures, which are ground fissures generated by dynamic geological actions in the earth. Its formation has a direct correspondence with faults, earthquakes, and regional stress fields. , whose trend is consistent with the underground fault zone, large in scale, and often distributed in a band shape, especially has a great i...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 刘聪彭建兵黄强兵吴明王利洋苑艺
Owner CHANGAN UNIV
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