Quality control measure and detection method for soil-rock mixture

Abstract

The invention relates to a quality control measure and a detection method for a soil-rock mixture, which is suitable for quality control and detection of filling bodies such as earth and rockfill damsand dike filling originated complexly in large and medium hydroelectric engineering. The invention aims to provide a quality control measure and a detection method for a soil-rock mixture. The methodcomprises the following steps of partitioning a stock ground and dividing the stock grounds with the maximum dry density value rhomax difference within a certain range into one area; for each area, performing a plurality of indoor heavy or standard impact maximum dry density tests, taking a small average value as the maximum dry density rhomaxk of soil-rock filling of corresponding area, and calculating an on-site dry density control value rhok according to a compactness d of designed demand, wherein rhok=d*rhomaxk; and performing a on-site grinding test on soil-stock mixture with great coarse and fine particle contents in the same partition of the stock ground, drawing each settling rate curve, and when it is shown by various graded soil-stock mixtures that the settling rate is tend to be consistent in stability and compactness, and the dry density rho after grinding is not smaller than rhok, determining a grinding parameter.

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.