波速测试在岩土工程中的应用
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摘要
通过波速测试技术进行岩土体弹性波速度原位测试,利用岩土体的纵、横波速度值能够进行场地类别划分,确定场地卓越周期,以及计算地基土的动参数,为岩土工程提供必要的设计参数。通过计算获得了徐州苏宁广场场地土的纵、横波速度以及场地土的动参数,根据《建筑抗震设计规范》确定徐州苏宁广场场地为二类场地,利用波速值计算场地卓越周期为0. 415 s与规范中查表获得的特征周期一致。为该工程场地工程地质评价和抗震设计提供了丰富的参数。
The elastic wave velocity of rock and soil can be measured in situ by the wave velocity measurement technology. The P-wave and S-wave velocity of rock and soil can be used to classify the sites,determine the predominant period of site,calculate the dynamic parameters of the foundation soil,and so as to provide necessary design parameters for geotechnical engineering. The P-wave and S-wave velocity and the dynamic parameters of site soil of Suning Square in Xuzhou are obtained by calculation. According to the Code for Aseismic Design of Buildings,the site of Suning Square in Xuzhou is classified as the second-class site. The predominant period of the site calculated using wave velocity is 0. 415 s,which is consistent with the characteristic period obtained from the code.It provides abundant parameters for engineering geological evaluation and aseismic design of site.
The elastic wave velocity of rock and soil can be measured in situ by the wave velocity measurement technology. The P-wave and S-wave velocity of rock and soil can be used to classify the sites,determine the predominant period of site,calculate the dynamic parameters of the foundation soil,and so as to provide necessary design parameters for geotechnical engineering. The P-wave and S-wave velocity and the dynamic parameters of site soil of Suning Square in Xuzhou are obtained by calculation. According to the Code for Aseismic Design of Buildings,the site of Suning Square in Xuzhou is classified as the second-class site. The predominant period of the site calculated using wave velocity is 0. 415 s,which is consistent with the characteristic period obtained from the code.It provides abundant parameters for engineering geological evaluation and aseismic design of site.
引文
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[2]李唐.波速测试在岩土工程勘察中的应用[J].中国高新技术企业,2017(5):216-217.LI Tang.The application of wave velocity test in geotechnical engineering[J].Chinese High-tech Enterprises,2017(5):216-217.
[3]赵德亨,田钢,王帮兵.浅层地震折射波法综述[J].世界地质,2005,24(2):188-193.ZHAO De-heng,TIAN Gang,WANG Bang-bing.An overview of shallow seismic refraction methods[J].Global Geology,2005,24(2):188-193.
[4]蔡力挺,韩玉庆.波速测试技术在岩土工程勘察中的应用[J].西部探礦工程,2009,21(3):32-34.CAI Li-ting,HAN Yu-qing.The application of wave velocity test in geotechnical engineering[J].West-China Exploration Engineering,2009,21(3):32-34.
[5]陈哲,章中良,吴魁彬.单孔与跨孔波速测试在工程中的应用[J].地质学刊,2010,34(2):192-195.CHEN Zhe,ZHANG Zhong-liang,WU Kui-bin.The application of single hole and cross-hole wave velocity test in engineering[J].Journal of Geology,2010,34(2):192-195.
[6]郑思慧,童广秀,潘兴军,等.剪切波测试成果分析与应用[J].山西建筑,2013,39(27):48-50.ZHENG Si-hui,TONG Guang-xiu,PAN Xing-jun,et al.Analysis and application of shear wave test results[J].Shanxi Architecture,2013,39(27):48-50.
[7]刘家富,余京,康世海.剪切波速测试技术在建筑场地评价中的应用[J].地下空间与工程学报,2015,11(增刊2):764-767.LIU Jia-fu,YU Jing,KANG Shi-hai.Applicaion of the shear wave velocity testing technology in evaluation of construction sites[J].Chinese Journal of Underground Space and Engineering,2015,11(Suppl.2):764-767.
[8]黄世敏,王亚勇,戴国莹,等.GB50011-2010(2016年版)建筑抗震设计规范[S].北京:中国建筑工业出版社,2016:18-20.HUANG Shi-min,WANG Ya-yong,DAI Guo-ying,et al.Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2016:18-20.
[9]郝冰,张彦,曲淑英,等.场地卓越周期的计算及其工程应用[J].水利与建筑工程学报,2016,14(5):144-150.HAO Bing,ZHANG Yan,QU Shu-ying,et al.Calculation of site predominant period and its engineering application[J].Journal of Water Resources and Architectural Engineering,2016,14(5):144-150.
[10]苏向前,刘康和.面波法与单孔检层法波速测试的工程应用[J].长江工程职业技术学院学报,2006,23(3):1-5.SU Xiang-qian,LIU Kang-he.Application of wave velocity test technique in geotechnical engineering[J].Journal of Changjiang Engineering Vocational College,2006,23(3):1-5.
[11]张喜发,刘超臣.工程地质原位测试[M].北京:地质出版社,1989:98-108.ZHANG Xi-fa,LIU Chao-chen.Engineering geological in situ testing[M].Beijing:Geological Publishing House,1989:98-108.
[12]常士膘.工程地质手册[M].北京:中国建筑工业出版社,2007:337-340.CHANG Shi-biao.Engineering geological manual[M].Beijing:China Building Industry Press,2007:337-340.
[13]罗明远.高层建筑岩土工程勘察中波速测试与卓越周期的探讨[J].西部探礦工程,2007,19(5):168-169.LUO Ming-yuan.Discussion on the wave speed test and the excellent cycle of engineering survey of high-rise building[J].West-China Exploration Engineering,2007,19(5):168-169.
[14]郑柱坚.场地卓越周期的测定及其在建筑抗震设计中的应用[J].工程抗震,2000(1):36-39.ZHEG Zhu-jian.Determination of site predominant period and its application in seismic design of buildings[J].Earthquake Resistant Engineering and Retrofitting,2000(1):36-39.