煤矸石压实效果快速检测新技术

The New Technique for Rapid Determination of Compactness of Coal Refuse

矸石回填建筑复垦矸石碾压施工中 ,压实干密度是一项重要的施工质量指标 ,传统的挖坑取样测试干密度的方法存在费时、费力、采样效率低 ,数据代表性差等缺点。用表面波密度仪检测矸石碾压压实干密度 ,测试精度高、简捷、快速 ,是一种值得推广的新方法。本文就 BZJ— 3 A表面波压实密度仪的检测理论、测试原理、仪器技术指标及施工中如何进行实际检测作了介绍。

The dry density of the compacted coal refuse filled up on site for construction purpose is a crucial indicator showing the quality of compaction work. The conventional method of using dug out material as testing sample suffers from the drawbacks of being labor intensive, time consuming, low in efficiency and poor in representativeness. However, the surface wave densiometer enjoys the merits of being high in precision and rapid in density determination. The operating principle and technical performance of the BZJ 3A surface wave densiometer and the way to use it in the field are introduced. (Jiang Sheng)