Recoverable measuring device for monitoring internal displacement of tunnel surrounding rock and method of recoverable measuring device
A measurement device and displacement measurement technology, applied in measurement devices, mechanical measurement devices, and mechanical devices, etc., can solve problems such as non-recyclability and material waste, and achieve the effect of reuse.
Inactive Publication Date: 2019-08-09
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology
After the surrounding rock reaches the stability standard, the monitoring work of the stable monitoring section is generally terminated, and most monitoring devices are discarded because they are not recyclable, resulting in a large waste of materials
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[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, 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 are some but not all embodiments of the present invention. For ease of description, only parts related to the invention are shown in the drawings.
[0035] It should be noted that, where there is no conflict, the components of the embodiments of the invention generally described and illustrated in the drawings may be arranged and designed in various different configurations. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary...
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The invention discloses a recoverable measuring device for monitoring internal displacement of tunnel surrounding rocks and a method of the recoverable measuring device. The recoverable measuring device includes a protective casing which is arranged in surrounding rock bodies in a measuring direction and is a rigid body, and a plurality of opening parts arranged in a vertical direction are formedin the lateral wall of the protective casing in different depth; a plurality of measuring point devices relatively move in a vertical direction of the protective casing, and the measuring point devices include measuring point occurrence bodies, a connection part and a measuring point fixing device; the measuring point occurrence bodies are arranged on the external side of the protective casing, the measuring point occurrence bodies are fixedly connected with the surrounding rocks by grouting bodies, the measuring point occurrence bodies are connected with the measuring point fixing device arranged on the internal side of the protective casing by the connection part, and the connection part penetrates though the opening parts; and a displacement measurement device is fixedly arranged in theprotective casing, the displacement measurement device is used for measuring the relative displacement between the measuring point fixing device and the protective casing.
Description
technical field [0001] The present disclosure generally relates to the technical field of deformation monitoring of underground geotechnical engineering, and in particular relates to a recyclable measuring device and a method thereof for monitoring internal displacement of surrounding rock of a tunnel. Background technique [0002] The deformation of the surrounding rock is an important criterion for evaluating the stability of the surrounding rock of the tunnel / roadway, and it is also an important basis for evaluating the effectiveness and rationality of the support structure after excavation of the tunnel / roadway. An important guarantee for the rationality of protective measures. Therefore, accurate and timely monitoring of surrounding rock deformation is of great significance for understanding the construction quality, the rationality of the construction plan, and guiding the on-site construction operations; With the rapid development of the project, there is an urgent n...
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IPC IPC(8): G01B21/02G01B21/32G01B5/00
CPCG01B5/0002G01B21/02G01B21/32
Inventor 康永水刘滨朱元广刘学伟黄兴汪志强
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI