复杂环境下石方控制爆破施工技术

Rail Excavation by Controlled Blast in Complicated Environment

文中结合通灌铁路路堑石方控制爆破施工,根据当地环境条件和地质条件,采用深孔台阶控制爆破施工技术,并根据试验和爆破效果分析,总结了符合现场条件的爆破参数、操作要点及安全防护措施。在通灌铁路复杂环境下石方路堑施工中,高效快速地完成了爆破施工作业,且路堑边坡平整稳定,取得了良好的安全爆破效果,经济、环境效益显著。

Techniques have been developed to form deep holes by controlled blast for railroad excavation for Tong-hua-Guanshui Railway, taking account of the surrounding topographical and geological conditions. The pilot blast excavation and analysis of the results were done. The parameters, operation procedures and safety precautions have been proposed based upon the analysis for practical application. The techniques have contributed to the early and efficient completion of the stable excavation in the complex physical conditions of Tonghua-Guanshui Railway project. The techniques have proved successful both in cost and in terms of environment protection.