摘要
该文以深圳地铁7号线盾构施工遭遇风化球状孤石群为工程背景,在分析了国内外已有探测孤石手段的缺陷和不足后,提出了采用"微动探测+加密地质补勘钻探+地面钻孔爆破"的地铁隧道盾构孤石预测及处治技术。应用于该工程中,取得了良好的效果。该文能够为同类工程提供借鉴。
In this paper,taking the shield construction meets with the weathered spherical boulders in metro line 7 in Shenzhen as the engineering background,and after analysing the defects and shortcomings about the exisiting detection methods at home and abroad,the boulder prediction and treatment technology in subway tunnel shield is provide which is ＂microseism detection ＋ concentrated supplemental geological prospection drilling ＋ ground drilling and blasting＂. This technology is used in this engineering,and it gets good effects. This paper can provide references for similar engineerings.
出处
《勘察科学技术》
2015年第3期49-55,共7页
Site Investigation Science and Technology
关键词
地铁隧道
盾构
孤石
微动探测
补勘取芯
钻孔爆破
subway tunnel
shield
boulder
microseism detection
supplemental geological prospection to core
drilling and blasting
