Measuring method of landslide or rock mass deformation in construction excavation

Abstract

The invention discloses a measuring method of landslide or rock mass deformation in construction excavation, and relates to the field of geological hazard investigation and design and prevention and control of slope engineering. The measuring method of the landslide or rock mass deformation in the construction excavation comprises the following steps that step 1, a first hole is drilled at a landslide body or the upper part rock mass of an outward inclined structural plane, and a second hole is drilled at a sliding bed or the lower part rock mass of the outward inclined structural plane; step2, a measuring needle is inserted into the first hole, and a scale ruler is inserted into the second hole; step 3, the topographic slope of an open-air slope at a shear exit of landslide or rock massdeformation is a, an inclination angle of a sliding zone or the outward inclined structural plane is b, the height of the measuring needle and the sliding zone or the bottom of the outward inclined structural plane is h1, and the height between the measuring needle and the scale ruler is h2; and step 4, the horizontal displacement of a pointer on a dial is recorded every day, and a time-horizontaldisplacement graph is manufactured. The measuring method of the landslide or rock mass deformation in construction excavation realizes that the equipment preparation is convenient, the installation is relative simple, and the method is feasible and practical.

Description

technical field [0001] The invention relates to the field of geological disaster investigation, design and prevention of slope engineering in industries such as water conservancy and hydropower, municipal administration, transportation, electric power, etc., more specifically, it is a method for measuring landslide or rock mass deformation during construction and excavation. Background technique [0002] During the construction and excavation of slope engineering in water conservancy and hydropower, municipal, transportation, electric power and other industries, geological conditions such as cutting feet at the front edge of landslides and unfavorable structural surface combination blocks of rock slopes are often encountered. At this time, it is necessary to timely Grasp the deformation trend of geological structure types such as landslide mass or rock mass at the top of the outwardly inclined structural surface after cutting the foot, and the unfavorable structural surface c...

AI Technical Summary

Problems solved by technology

[0003] At present, deformation monitoring is generally used for landslides or rock mass deformation at home and abroad. Deformation monitoring has the characteristics of periodic repeated measurement, high precision, comprehensive application of various measurement technologies, and the monitoring network focuses on the study of potential changes. However, deformation monitoring also has the characteristics of early stage Disadvantages such as long layout time, inconvenient layout, and relatively high cost

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