综合钻孔工艺在高喷防渗墙施工中的研究与应用

Research and Application of Comprehensive Drilling Technology in High Pressure Jetting Diaphragm Wall Construction

选用合理的钻孔设备、机具及可靠的材质性能,结合使用孔斜的分段控制技术,根据各种钻孔工艺的优点及缺点,充分考虑各种钻孔工艺与地层的匹配性,采取相对合理的综合钻孔工艺及工法,是确保钻孔质量及进度的关键所在。结合某水电站导流明渠围堰高喷防渗墙工程实例,介绍了不同孔深及地质条件下综合钻孔工艺在高喷防渗墙施工中的应用。

The key points to ensure drilling quality and progress have been showed such as reasonable drilling equipment and materials,hole deviation control and drilling technology based on geological conditions.According to engineering practice of high pressure jetting diaphragm wall of diversion channel cofferdam in a hydropower station,this paper introduces application of comprehensive drilling technology in high pressure jetting diaphragm wall construction under different depth and geological conditions.