Rock slope locking section crack deformation monitoring device and laying method

Abstract

The invention provides a rock slope locking section crack deformation monitoring device and a laying method. A filling pipeline on a bag type monitoring probe is connected with a slurry guide pipe through an automatic locking and unlocking device, a to-be-clamped part on a bag is clamped through a clamping assembly, a jacking and stretching driving mechanism is used for driving a clamping driving mechanism to move towards an adit, the bag is jacked into the adit; a high-pressure filling machine is used for filling cement mortar into the bag through the slurry guide pipe, so that the bag is expanded until the upper surface and the lower surface of the bag abut against the upper rock surface and the lower rock surface of the adit, a monitor on the bag abuts against the upper rock surface and the lower rock surface of the adit, and a plurality of bag type monitoring probes are arranged in the adit in an array mode. The technical scheme has the beneficial effects that a locking and unlocking type rock landslide is taken as a monitoring object, the attitude change of the rock landslide is monitored in a manner of arranging pressure sensors in the adit below a slip mass in the array mode, so that a slip mass deformation data is indirectly obtained, the method is high in sensitivity, and the development condition of the slip mass can be more accurately obtained from the inside.

Description

technical field [0001] The invention relates to the technical field of geological disaster monitoring, in particular to a crack deformation monitoring device and a layout method of a rock slope locked section. Background technique [0002] Large-scale rock landslides are often accompanied by the sudden release of high strain energy when they occur. Due to their suddenness and large volume, they are likely to cause heavy casualties and economic losses. Locked segment rock landslide is one of the important types. Its main feature is that there is a potential sliding surface composed of the locked segment at the front end and the cracked area at the rear edge. Under the action of unloading, rainfall or flooding, the locked segment The strain energy of the solid rock mass gradually accumulates until failure. [0003] Only by taking monitoring measures for this type of rock landslide, can early warning be issued for the disaster that is gestating, which has always been an import...

AI Technical Summary

Problems solved by technology

However, for landslides with insignificant precursory information such as locked-segment rock landslides, the above method is meaningless

Locked sections and cracked areas are prominent features of this type of landslide, but the overlying soil and vegetation in the cracked area at the trailing edge often cover important features, which is not conducive to the deployment of monitoring

Images