Anchor force test simulation comprehensive experimental device

Abstract

The invention relates to a device for an anchor rod anchoring force testing simulating comprehensive experiment. The device can effectively solve the problem that time and labor are wasted and the accuracy rate is low simultaneously in the prior art. The technical scheme is that the device comprises a machine frame, a steel pipe, an anchor rod and an annular oil cylinder. The machine frame is formed by supporting legs, an upper frame and a lower frame. The four supporting legs are respectively welded to four corners of both a horizontal upper frame and a horizontal lower frame, an oil cylinder mounting plate is installed in the front of the machine frame, the annular oil cylinder is installed on the oil cylinder mounting plate, a support is installed on the upper frame, a hand pump and a digital display meter are installed on the support, the steel pipe is fixed on the lower frame through a clamping plate, one end of the anchor rod is anchored in the steel pipe, the other end of the anchor rod penetrates through the center of the annular oil cylinder, and the anchor rod extends out of one end of the annular oil cylinder and is fixed through a baffle at the end of the annular oil cylinder. The device is low in cost and high in accuracy rate and greatly improves working efficiency, top plate roof collapse accidents on the working site are effectively avoided, and the device is innovation for anchor rod anchoring force testing devices.

Description

technical field [0001] The invention relates to the field of coal mines, in particular to a comprehensive experimental device for testing and simulating the anchoring force of a bolt. Background technique [0002] Because the bolt support method has the advantages of low construction cost, high speed, and reduced labor intensity, it has become the main support and reinforcement method for shaft and geotechnical engineering. The number of anchor rods only used in coal roadways in my country is more than tens of millions every year. For the roadway supported by bolts, the quality of bolt anchorage has a direct impact on whether the overall bearing capacity of the surrounding rock can be improved, and is an important indicator of coal mine safety production. Therefore, the detection of the anchoring quality of the bolt is an important link to promote the safe production of coal mines. In fact, as the mining depth of coal mine resources in our country is getting deeper and dee...

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Problems solved by technology

[0003] In view of the above situation, in order to solve the defects of the prior art, the purpose of the present invention is to provide a comprehensive experimental device for testing the anchoring force of the bolt, which can effectively solve the time-consuming and labor-intensive prior art, and generate strong disturbances to the reinforced rock mass. The reinforcement effect of the bolt on the surrounding rock is reduced, and the problem of low accuracy

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