Monitoring method for dam foundation rock mass construction process

Abstract

The invention discloses a dynamic monitoring method for a dam foundation rock mass construction process. The method comprises the following steps of step 1, detecting internal geological conditions of a dam foundation rock mass, and mastering development states and distribution rules of karst pores and karst caves; and performing three-dimensional imaging according to the geological parameters; step 2, importing a three-dimensional image into a BIM platform to generate a three-dimensional digital model; step 3, making a construction scheme in the BIM platform according to the three-dimensional digital model containing the geological information; step 4, according to the formulated construction scheme, performing concrete filling and grouting treatment on the karst pores and karst caves in the dam foundation rock mass; step 5, collecting internal geological parameters of the dam foundation rock mass after concrete filling and grouting treatment, generating a three-dimensional image, importing the three-dimensional image into the BIM platform, and detecting concrete filling and grouting effects; and step 6, if the effects are detected to be unqualified, adjusting a construction scheme in the BIM, adding seal holes, and performing leaking stoppage grouting till the effects are detected to be qualified; According to the method, dam foundation rock mass construction is efficient, accurate and refined, the problems of repeated operation and low production efficiency are solved, and the method has guiding significance for dynamic regulation and control of treatment measures and construction schemes of engineering.

Description

technical field [0001] The invention relates to the technical field of dam foundation rock mass construction in water conservancy and hydropower projects, in particular to a method for monitoring the dam foundation rock mass construction process. Background technique [0002] Defects in the rock mass of the dam foundation seriously affect the safety of the dam foundation, especially in areas where karst caves and troughs are developed in the rock mass. Bedrock joint or deep leakage of dam foundation. It not only brings great potential safety hazards to the dam section, but also brings great difficulties to the excavation and concrete pouring of adjacent dam sections. Due to the complex and difficult to accurately grasp the characteristics of the dam foundation rock mass, it is difficult to fully and accurately understand the state of the dam foundation rock mass in the preliminary engineering survey. Construction progress, etc. are affected. [0003] The common detection ...

AI Technical Summary

Problems solved by technology

However, BIM cannot obtain underground geological information, and it is difficult to model volumes with complex geometries (such as geological structures such as karst tanks and caves, etc.)