Leveling device for anchor rod drawing detection and construction method

Abstract

The invention provides a leveling device for anchor rod drawing detection and a construction method. The leveling device comprises a leveling plate, a lifting mechanism and a supporting mechanism, thelifting mechanism is detachably arranged between the leveling plate and the supporting mechanism, the supporting mechanism is connected with the lifting mechanism, and the supporting mechanism is provided with a universal adjusting unit so that the leveling plate can be adjusted at multiple angles. According to the leveling device, the problems that a steel base plate is not tightly attached to the slope surface in the pull-out test detection of the slope anchor rod of a mountain highway and the anchor rod cannot be stressed by axis are solved; and the leveling device can be suitable for detecting side slope anchor rods with various slope rates, angles, rock mass breakage after excavation and uneven slope surfaces, and solves the problem that the anchor rod is difficult to detect due to the uneven slope surfaces in a broken side slope.

Description

technical field [0001] The invention relates to the field of engineering testing equipment, in particular to a leveling device and a construction method for bolt pulling testing. Background technique [0002] In mountainous expressway slope bolt pull-out tests, the problem that the steel backing plate is not tightly attached to the slope is often encountered. Especially when encountering rocky slopes such as broken rock mass and severe weathering, the uneven slope after excavation or the existence of some serious rock protrusions will bring serious troubles to the bolt pullout test. On the one hand, the protruding stones cause the anchor to be non-axially stressed, and secondly, some anchors have a certain angle with the slope, and when they are not perpendicular, the anchor puller cannot realize the angle adjustment. The above two situations will lead to The pull-out force of the anchor rod is in an eccentric state, and the detection cannot reflect the real force of the an...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a leveling device and a construction method for detection of bolt pullout, which can overcome the problem of bolt pullout in mountainous expressway slopes. The problem encountered in the test and detection is that the steel backing plate does not fit tightly with the slope surface and the anchor rod cannot bear the axial force, etc., to solve the troubles caused by the uneven slope surface of the stone slope to the anchor rod detection, and to improve the accuracy of the test data efficiency, avoid duplication of work, inconvenient use, and low work efficiency

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