摘要
在临近既有线铁路隧道附近进行爆破作业时,由于常规爆破产生爆破震动、爆破飞石对既有线运营安全产生重大影响,安全风险等级高且后果不可接受。因此,如何能在爆破过程中减少不利因素,减少风险是爆破设计与施工的重中之重。论文以实际工程为例,介绍了隧道石方开挖爆破施工技术,对优化爆破设计、设计临时防护设施进行分析,保证了临近既有线铁路隧道土石方开挖施工的安全,使工程顺利竣工。
Blasting operations in the near vicinity of the existing railway tunnel, the conventional blasting blasting vibration, blasting flyrocks of existing railway operation safety have a significant impact on the security risk level is high and the consequences can not be accepted, so how to reduce the unfavorable factors in the blasting process, reduce the risk is the priority among priorities blasting design and construction the. Based on the actual project as an example, first introduced the blasting construction technology of tunnel rock excavation, then the design of temporary protection facilities optimizing blasting de sign and analysis, to ensure the safety of the construction near the existing railway tunnel earthwork excavation construction, the completion of the project.
作者
侯志强
HOU Zhi-qiang(China Rai!way Sixth Bureau Group Co.Ltd.,Beijing 100070,China)
出处
《工程建设与设计》
2017年第7期159-161,共3页
Construction & Design for Engineering
关键词
临近既有线隧道施工
石方开挖
爆破施工
near the existing tunnel construction
rock excavation
blasting construction
