Anchor quality monitoring device for increased resistance deformation anchor bolts/ropes and application method
A technology for quality monitoring and bolting, which is applied in the testing of infrastructure, construction, infrastructure engineering, etc., can solve the problems of high cost of testing equipment, measurement errors, inability to actively measure and forecast, and achieve lower monitoring costs and lower costs. , the effect of preventing safety accidents
Active Publication Date: 2012-12-26
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
The following problems were found during the application of the above-mentioned patented products: In order to grasp the stability of the surrounding rock and the reliability of the anchoring system, it is necessary to monitor the anchoring quality of the bolt / anchor cable (including anchoring force and displacement of the surrounding rock) for a long time. At present, there is no corresponding The equipment can monitor the above two variables at the same time, but the cost of special detection equipment is high, and there are various disadvantages
These measurements will consume a lot of manpower and material resources for on-site measurement and data processing, and may cause measurement errors due to measurement differences between individuals
In addition, this measurement cannot actively measure and predict emergencies that may occur at any time
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[0033] Such as figure 1 Shown is a preferred embodiment according to the present invention. According to the present invention, a monitoring device for anchoring quality of an increased-resistance deformed bolt / cable includes: an increased-resistance deformed anchor / cable 1 for supporting surrounding rock; a displacement measurement unit 2 for measuring the displacement data of the rod body; The collection device 3 is used to collect and store data; the information transmission device 4 is used for data exchange between devices; the central processing system 5 is used for data analysis and output results.
[0034] combine Figure 2 to Figure 5 , the resistance-increasing deformation anchor rod / cable includes a friction sleeve 101, a shrinkable member 102, a steel strand (rod body) 103, a tray 104, a nut 105 and an outer end cap 106. The friction sleeve is a cylindrical thick-walled steel pipe whose inner diameter gradually decreases from one end to the other; the shrinkable ...
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The invention relates to an anchor quality monitoring device for increased resistance deformation anchor bolts / ropes and an application method of the anchor quality monitoring device. The device comprises increased resistance deformation anchor bolts / ropes, displacement measurement units, data acquisition equipment, an information transmission device and a central processing system, wherein the displacement measurement units arranged on the anchor bolts / ropes measure displacement of bolt bodies (rope bodies) in the operation process; the data acquisition equipment and the information transmission device collect and transmit data to the central processing system; and the central processing system converts the transmitted displacement data into drawing force data of the anchor bolts / ropes according to tension-displacement curves of the anchor bolts / ropes. The device can monitor and provide anchor forces of the anchor bolts / ropes and wall rock displacement simultaneously, find the failed anchor bolts / ropes timely, AND forecast wall rock collapse and damages, thereby effectively avoiding safety accidents, and greatly lowering the monitoring cost.
Description
technical field [0001] The invention relates to the field of geotechnical engineering anchoring, in particular to an anchor rod / anchor cable anchoring quality monitoring device and an application method thereof. Background technique [0002] With the in-depth development of large-scale geotechnical engineering construction, the geological conditions are becoming more and more complex, and the surrounding rock often shows the characteristics of large deformation. When the deformation of the surrounding rock is large and exceeds the range that the anchor rod / cable can bear, it will lead to the failure and damage of the anchor rod / cable, and then cause the instability and destruction of the underground engineering. [0003] In view of this situation, the applicant has developed corresponding resistance-increasing deformation anchors / cables (201110368935.1, 201110368805.8) to adapt to these situations. The following problems were found during the application of the above-mentio...
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IPC IPC(8): E02D33/00
Inventor 王刚吴学震蒋宇静杨勇
Owner SHANDONG UNIV OF SCI & TECH