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Integrated test device for stress and displacement of rock mass based on fiber bragg grating and system

A test device and fiber grating technology, applied in the test field, can solve problems such as damage to construction equipment, complex geological environment, casualties, etc.

Pending Publication Date: 2017-05-10
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The geological environment in which rock engineering exists is complex. Landslides, landslides and rockbursts that occur during large-scale engineering construction are the most critical factors affecting the safety and operation of engineering construction. Engineering accidents often cause damage to construction equipment and major casualties

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  • Integrated test device for stress and displacement of rock mass based on fiber bragg grating and system
  • Integrated test device for stress and displacement of rock mass based on fiber bragg grating and system
  • Integrated test device for stress and displacement of rock mass based on fiber bragg grating and system

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in this drawing may be arranged and designed in a variety of different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without ...

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Abstract

The invention relates to the technical field of test and specifically relates to an integrated test device for stress and displacement of rock mass based on fiber bragg grating and a system. The integrated test device for stress and displacement of rock mass based on fiber bragg grating is equipped with a displacement test device and a stress test device, wherein the displacement test device is equipped with a conical component, an elastic sheet, a thimble, a protecting chamber, a connecting block, a first spring, a force transferring rod and a protecting tube; an optical grating is arranged on an upper surface and / or a lower surface of the elastic sheet; the stress test device is equipped with a fiber bragg grating hollow inclusion stress meter; the displacement test device and the stress test device are connected through a steel frame and a connector, so that the integrated test for the stress and displacement of rock mass can be realized.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to an integrated testing device and system for rock mass stress and displacement based on optical fiber gratings. Background technique [0002] The geological environment in which rock engineering exists is complex. Landslides, landslides, and rockbursts that occur during large-scale engineering construction are the most critical factors affecting the safety and operation of engineering construction. Engineering accidents often cause damage to construction equipment and major casualties. The occurrence of these disasters is firstly reflected in the position and / or stress changes in the rock mass. Through the direct acquisition and analysis of position and / or stress evolution information on site, the early warning and control of disasters can be effectively realized. Therefore, the position and stress of the rock mass Change testing has become one of the most important contents in ro...

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Application Information

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IPC IPC(8): G01D21/02G01B11/02G01L1/24
CPCG01B11/02G01D21/02G01L1/242
Inventor 李邵军程远张东生郑民总
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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