地震映像技术在地下工程透水事故中的应用
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摘要
某地下开挖工程出现透水事故,引发地基沉陷,上部建筑物楼体开裂。地下沉陷情况不明,对周边建筑安全构成威胁。采用地震映像技术对隐患区地下土层变化进行了追踪测试。结果表明:地下土层受透水影响,出现多点沉降异常,且伴有地下空洞正在形成。数据分析结果为沉降区后期加固修护提供了依据,并可为类似工程处理提供参考。
In the water accident of an underground project,the foundation settlement and the cracks of adjacent structures are caused.Safty of surrounding buildings is threatened because of unknown subsidence.The technology of seismic image is applied to tracing test of underground soil in hidden trouble area.The results show that,underground soil layers are affected by water accident,by which multi-point abnormal subsidence and underground cavities are caused.This conclusion is valuable in post repairing and strengthening in hidden trouble area.
In the water accident of an underground project,the foundation settlement and the cracks of adjacent structures are caused.Safty of surrounding buildings is threatened because of unknown subsidence.The technology of seismic image is applied to tracing test of underground soil in hidden trouble area.The results show that,underground soil layers are affected by water accident,by which multi-point abnormal subsidence and underground cavities are caused.This conclusion is valuable in post repairing and strengthening in hidden trouble area.
引文
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[2]陈龙珠,严细水,赵永倩.关于面波法检测地基波速中的测点布置问题[J].岩土工程学报,2003,25(1):63-66.Chen Longzhu,Yan Xishui,Zhao Yongqian.Onarrangement of transducers in surface wavemeasurement[J].Chinese Journal of GeotechnicalEngineering,2003,25(1):63-66.
[3]刘江平,罗银河,何伟兵.相邻道瞬态瑞雷面波法与压实度检测[J],岩土工程学报,2009,31(11):1652-1659.Liu Jiangping,Luo Yinhe,He Weibing.Method ofneighboring trace transient Rayleigh wave and itsapplication in compactness inspection[J].ChineseJournal of Geotechnical Engineering,2009,31(11):1652-1659.
[4]Park B,Miller R D,Xia J.Multichannel analysis ofsurface waves[J].Geophysics,1999,64(3):800-808.
[5]单娜琳,程志平,刘云祯.工程地震勘探[M].北京:冶金工业出版社,2006.Shan Nalin,Chen Zhiping,Liu Yunzhen.Engineering seismic exploration[M].Beijing:Metallurgical Industry Press,2006.
[6]黄健,凡友华,高夕超,等.两道瑞雷波法在路基密实度检测中的应用[J].公路,2007,7:145-147.Huang Jian,Fan Youhua,Gao Xichao,et al.Application of two channal rayleigh wave method toinspection of degree of compaction of subgrade[J].Highway,2007,7:145-147.
[7]缪林昌,邱钰.SASW法在基础工程和路基工程中的应用研究[J].岩土力学,2004,25(1):149-152.Miao Linchang,Qiu Yu.Research on application ofSASW method to foundation and subgradeengineerings[J].Rock and Soil Mechanics,2004,25(1):149-152.
[8]王克斌.复杂地表条件下初至折射波静校正方法的研究[D].北京:中国矿业大学,2004.Wang Kebin.Refraction first-beak statics methodunder complex near-surface conditions[D].Beijing:China University of Mining and Technology,2004.
[9]霍浩,查树贵,王立新,等.广角反射波动校叠加方法[J].石油天然气学报,2006,28(3):273-275.Huo Hao,Zha Shugui,Wang Lixin,et al.Themethod of wide angle reflection stackable wave[J].Journal of Jianghan Petroleum Institute,2006,28(3):273-275.
[10]夏洪瑞,葛川庆,邹少锋.具有截断误差校正的广角反射NMO方法[J].石油物探,2005,44(2):154-158.Xia Hongrui,Ge Chuanqing,Zou Shaofeng.NMOmethod of wide angle reflection with truncation errorcorrection[J].Geophysical Prospecting For Petrole,2005,44(2):154-158.
[11]Wang H,Sun L,Martinez R.Optimized 6th orderNMO correction for long-offset seismic data[C]∥Expanded Abstracts of 72nd Annual InternatMeeting.SEG:Expanded Abstracts,2002:2313-2316.
[12]夏洪瑞,葛川庆.误差均值法实现广角反射NMO校正[J].石油地球物理勘探,2005,40(4):381-387.Xia Hongrui,Ge Chuanqing.NMO correction ofwide-angle reflection by mean errors value method[J].Oil Geophysical Prospecting,2005,40(4):381-387.
[13]袁海科.基于误差均值法的广角反射NMO校正实现方法[J].石油天然气学报,2005,27(6):724-725.Yuan Haike.The method of wide angle reflectionNMO correction based on the error mean algorithm[J].Journal of Jianghan Petroleum Institute,2005,27(6):724-725.
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