基岩爆破和注浆处理效果的物探检验技术研究
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摘要
为了保证土压平衡盾构区间基岩经爆破处理和封闭注浆后的地层的气密性,采用高密度电阻率法与面波地震法相结合的方法,对隧道范围内的基岩爆破和注浆处理效果的物探检验技术进行研究。主要研究成果如下:1)在一定程度上实现了定量分析,将爆破和注浆施工质量具体地反映在电阻率值和横波速度数值上。2)实现了对爆破和注浆施工质量的连续监测和最终检验评价,对爆破和注浆施工有一定的指导作用。
Bed rocks intrude into the scope of a shield-bored running tunnel of Shenzhen Metro.Blasting and grouting are carried out so as to ensure the successful driving of the shield.Geophysical prospecting,including high density resistivity method and Rayleigh wave method,is made to detect the effect of the blasting and grouting.In the paper,study is made on the mentioned geophysical prospecting methods.Conclusions drawn are as follows: 1) Quantitative analysis is achieved to some extent and the effects of the blasting and grouting are reflected by the resistivity and the transverse wave velocity.2) Continuous monitoring and final evaluation of the effects of blasting and grouting are realized,which can provide reference for the blasting and grouting.
Bed rocks intrude into the scope of a shield-bored running tunnel of Shenzhen Metro.Blasting and grouting are carried out so as to ensure the successful driving of the shield.Geophysical prospecting,including high density resistivity method and Rayleigh wave method,is made to detect the effect of the blasting and grouting.In the paper,study is made on the mentioned geophysical prospecting methods.Conclusions drawn are as follows: 1) Quantitative analysis is achieved to some extent and the effects of the blasting and grouting are reflected by the resistivity and the transverse wave velocity.2) Continuous monitoring and final evaluation of the effects of blasting and grouting are realized,which can provide reference for the blasting and grouting.
引文
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[3]杨雄飞,袁鸿.广州地铁3号线孤石地层的探测及处理[J].建筑机械化,2011(6):72-75,6.(YANG Xiongfei,YUAN Hong.The detecting and measure of the boulder layerat the site of Guangzhou Metro line 3[J].ConstructionMechanization,2011(6):72-75,6.(in Chinese))
[4]王典.地铁工程球状风化专题勘察方案研究[J].广州建筑,2011(2):44-48.(WANG Dian.Discussion about spe-cial investigation programmes of spheroidal weathering insubway project[J].Guangzhou Architecture,2011(2):44-48.(in Chinese))
[5]靳洪晓,赵永贵,李勤,等.地面地震CT在浅层勘探中的应用[J].工程地质学报,2000(2):112-116.(JINHongxiao,ZHAO Yonggui,LI Qin,et al.Application of sur-face seismic tomography to shallow geological survey[J].Journal of Engineering Geology,2000(2):112-116.(inChinese))
[6]刘宏岳,梁奎生,段建庄,等.地震反射波CDP叠加技术在台山核电海域花岗岩孤石探测中的应用[J].隧道建设,2011,31(6):657-661,667.(LIU Hongyue,LIANGKuisheng,DUAN Jianzhuang,ea al.Application of marineseismic reflection CDP stacking technology in detection ofweathered granite boulder:Case study on water intake tun-nels of taishan nuclear power station[J].Tunnel Construc-tion,2011,31(6):657-661,667.(in Chinese))
[7]徐佩芬,凌苏群,侍文,等.二维微动剖面技术探测“孤石”[C]//中国地球物理学会第二十七届年会论文集.北京:中国科学院地质与地球物理研究所,2011:874.
[8]李晓昌.在MATLAB平台上实现可控源音频大地电磁反演数据三维可视化显示[J].物探化探计算技术,2007(S1):92-95,12.(LI Xiaochang.3D visual presentation ofinverted em sounding data on matlab platform[J].ComputingTechniques for Geophysical and Geochemical Exploration,2007(S1):92-95,12.(in Chinese))
[9]王运生.浅层地震反射与散射联合成像研究[D].武汉:中国地质大学地球物理与空间信息学院,2005.
[10]杨发杰,巨妙兰,刘全德.高密度电阻率探测方法及其应用[J].矿产与地质,2004(4):60-64.(YANG Fajie,JuMiaolan,LIU Quande.High density resistivity surveyingmethod and its application[J].Mineral Resources and Ge-ology,2004(4):60-64.(in Chinese))
[11]张胜业,潘玉玲.应用地球物理学原理[M].武汉:中国地质大学出版社,2004.
[12]钟韬.超高密度电法在探测采空区中的应用研究[D].成都:成都理工大学地球物理学院,2008.
[13]王振东.浅层地震勘探应用技术[M].北京:地质出版社,1988:55-67.
[14]谢尚平,熊章强,易清平,等.浅层地震和高密度电法在滑坡体勘察中的应用[J].东华理工大学学报:自然科学版,2004(4):64-67.(XIE Shangping,XIONG Zhan-gqiang,YI Qingping.Application of landslide survey by u-sing shallow seismometry and high-density resistivity meth-od[J].Journal of East China Institute of Technology,2004(4):64-67.(in Chinese))
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