Three dimensional collinear measuring ring for drillhole inclination survey and axial deformation

Abstract

The invention discloses a kind of three-dimension co-linear measuring ring for clinograph and axial deformation, which refers to the measurement of clinograph and deformation in geognosy engineering. The measuring ring enlarges the outer radius of current special measuring ring, makes the outer radius match with current clinograph and it sets a clinograph small sot along the centre line on the bottom of the measuring ring sliding slot. Compared with current technology, the merits of the invention are: the three-dimension deformation co-linear measuring hole can measure the axial deformation and the transverse shift of the drill hole, it also can supervising the deformation of the hole. The invention uses a low cost to realize the three-dimension deformation device.

Description

Technical field: [0001] The invention relates to the stability of geotechnical engineering, and more specifically relates to the observation of three-dimensional deformation of boreholes in geotechnical engineering. Background technique: [0002] The three-dimensional deformation law of the deep rock mass is an important indicator of the stability of geotechnical engineering. During the implementation of the project, the three-dimensional deformation law of the rock mass is generally found out through calculation and analysis based on the measurement data of the lateral displacement and axial deformation of the borehole. Provide important scientific basis for geotechnical engineering construction safety and future operation safety. [0003] The inclinometer is a special instrument used to measure the lateral displacement in two orthogonal horizontal directions along the rock mass borehole. The main body of the instrument is in the shape of a long cylinder, with a connecting...

AI Technical Summary

Problems solved by technology

[0010] The reason why this method requires two boreholes is that the inclinometer and the sliding deformation gauge are developed independently of each other, and the dedicated inclinometer tube for the inclinometer and the dedicated measuring line for the sliding deformation gauge are not compatible. , cannot be cross-used

Its shortcoming is that, to monitor the three-dimensional deformation of a rock mass, two drilling holes and two measuring lines are required, which doubles the workload and monitoring cost.

Its shortcoming is that the internal structure of the three-way deformation gauge is complicated and the price is very expensive, so that now people would rather adopt the method of double-hole monitoring, and rarely buy the three-way deformation gauge.

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