Retrievable measuring device and method for monitoring internal displacement of tunnel surrounding rock
A measurement device and displacement measurement technology, applied in the direction of measurement device, mechanical measurement device, using mechanical device, etc., can solve the problems of non-recyclability and material waste, and achieve the effect of reuse
Inactive Publication Date: 2021-04-16
INST OF ROCK & 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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This application discloses a recyclable measuring device and method for monitoring the internal displacement of the surrounding rock of the tunnel. The device includes: a protective sleeve, which is installed in the surrounding rock body along the measurement direction, and the protective sleeve is a rigid body. The side wall of the protective sleeve is provided with several openings arranged longitudinally at different depths; several measuring point devices that can move relative to each other along the longitudinal direction of the protective sleeve, and the measuring point device includes a measuring point storage body, a connection Components and measuring point fixing devices, the measuring point occurrence body is arranged on the outside of the protective casing, each of the measuring point occurrence bodies is used for fixed connection with the surrounding rock through grouting, and the measurement point occurrence body The connecting part is connected with the measuring point fixing device arranged inside the protective sleeve, and the connecting part passes through the opening; the displacement measuring device arranged in the protective sleeve is fixed, and the displacement measuring device It is used to measure 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 & SOIL MECHANICS CHINESE ACAD OF SCI