Quality Control Measures and Testing Methods of Soil-rock Mixture

Abstract

The invention relates to a quality control measure and detection method of earth-rock mixture, which is suitable for quality control and detection of earth-rock dams, embankment filling and other filling bodies with complex material sources in large and medium-sized hydropower and water conservancy projects. The purpose of the present invention is to provide a quality control measure and detection method for earth-rock mixture, which divides the stockyard and sets the maximum dry density value ρ max The difference within a certain range is divided into a zone; for each zone, several groups of indoor heavy-duty or standard compaction maximum dry density tests are done, and the average value of the small value is taken as the maximum dry density ρ of soil and rock filling in the corresponding zone maxk , according to the degree of compaction d required by the design, the on-site dry density control value ρ is converted k , ρ k =d×ρ maxk ; Carry out on-site rolling tests on soil and stone materials with large differences in coarse and fine particle content in the same stockyard division, and draw the settlement rate curve of each layer. When the various graded soil and stone materials show that the settlement rate tends to be stable and the degree of compaction is basically the same , and the dry density ρ after rolling is not less than ρ k , determine the rolling parameters.

Description

technical field [0001] The invention relates to a quality control measure and detection method of earth-rock mixture. It is suitable for quality control and inspection of earth-rock dams, embankment filling and other filling bodies with complex material sources in large and medium-sized hydropower and water conservancy projects. Background technique [0002] In recent years, with the substantial increase in investment in infrastructure construction in my country, the construction of hydropower and water conservancy projects, such as earth-rock dams and embankment projects, has achieved unprecedented development. For large and medium-sized projects, once the quality control measures are improper during the construction process, there will be a series of serious consequences. Therefore, scientific and reasonable earth-rock filling quality control and detection methods are one of the important means to ensure safe and stable operation of earth-rock dams, embankments and other ...

AI Technical Summary

Problems solved by technology

This method has many on-site detection procedures and is more complicated, and it is not completely applicable to weathered soil and stone materials of various parent rocks when the specific gravity of each parent rock is greatly different.