岩土介质中不良地质体轮廓探测技术研究
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摘要
为解决埋深较大或地面条件复杂的地下工程开挖前方不良地质体轮廓探测不易从地面展开的难题,利用地震波"角度+位置"偏移的联合体系探测隧道施工前方不良地质体的形状,通过对地面地震波位置偏移法探测三维形状体的研究分析,论述地震波角度偏移在探测地下三维形状体的理论与重要作用,并借用人眼仿生学的原理进一步阐述角度偏移在地下工程前方探测的合理性与可行性。得出以下结论:角度偏移技术不需占用较大空间,非常适合地下工程开挖掌子面有限空间的前方不良地质体轮廓探测,利用"角度+位置"偏移的联合体系探测软弱岩体取得了很好的实际效果。
It is difficult to detect the contours of the bad geological bodies ahead of the excavation faces of underground works in case of huge overburdens or complex ground surface conditions.The contours of bad geological bodies are detected by means of seismic waves "angle + position" offset system.The mechanisms and importance of the seismic waves angle offset system in the detection of underground 3D bodies are discussed.The rationality and feasibility of angle offset system in the detection of contours of bad geological bodies in underground works are further presented by means of studying on the mechanisms of ocular bionics.Conclusions drawn are follows: due to the small space needed,the angle offset system is suitable for the detection of the contours of bad geological bodies ahead of the excavation face of underground works;the application of the "angle + position" offset system in the detection of weak rock mass has achieved good result.
It is difficult to detect the contours of the bad geological bodies ahead of the excavation faces of underground works in case of huge overburdens or complex ground surface conditions.The contours of bad geological bodies are detected by means of seismic waves "angle + position" offset system.The mechanisms and importance of the seismic waves angle offset system in the detection of underground 3D bodies are discussed.The rationality and feasibility of angle offset system in the detection of contours of bad geological bodies in underground works are further presented by means of studying on the mechanisms of ocular bionics.Conclusions drawn are follows: due to the small space needed,the angle offset system is suitable for the detection of the contours of bad geological bodies ahead of the excavation face of underground works;the application of the "angle + position" offset system in the detection of weak rock mass has achieved good result.
引文
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[3]叶英.岩溶隧道施工超前地质预报方法研究[D].北京:北京交通大学桥梁与隧道工程系,2006.
[4]赵永贵,刘浩,孙宇,等.隧道地质超前预报研究进展[J].地球物理学进展,2003(3):101-105.(ZHAOYonggui,LIUHao,SUNYu,et al.Research progress in tun-nel geological prediction[J].Progress in Geophysics,2003(3):101-105.(in Chinese))
[5]何发亮,李苍松.隧道施工期地质超前预报技术的发展[J].现代隧道技术,2001(3):15-18.(HE Faliang,LICangsong.The development of geological forecast in tunnelconstruction[J].Modern Tunnelling Technology,2001(3):15-18.(in Chinese))
[6]加尔彼林.地震观测方位法[M].刘光鼎,译.北京:地质出版社,1956.
[7]周锦明,熊翥.地震数据精细处理[M].北京:石油工业出版社,2003.
[8]叶英.地下工程施工超前地质预报系统研究[J].工程地球物理学报,2009(1):20-25.(YE Ying.Research ongeological prediction system of underground engineeringconstruction[J].Chinese Journal of Engineering Geophys-ics,2009(1):20-25.(in Chinese))
[9]叶英,许鹏.USP地下工程施工超前地质预报系统:中国,1 0305574.4[P].2008.
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