天水市岩土体剪切波速与埋深的变化关系
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摘要
本文应用数理统计方法分析了天水市1 294组不同类型岩土体的剪切波速数据。结果显示,不同类型岩土体的剪切波速值随深度或风化程度不同均具有较大的变化区间;任一类型岩土体的剪切波速分布呈现出正态分布特征,其峰值区间和优势区间可以很好地反映岩土体的物理性状;松散堆积类岩土体(如:粉土、粉质粘土、卵石和圆砾等)的剪切波速与深度具有很好的相关性,可用二次函数和幂函数表达;同一类型成岩体(如:泥岩、砂岩和砾岩等)的剪切波速变化主要受岩体的裂隙发育和风化程度影响,与深度的相关性较小。
In this paper,1294 groups of shear wave velocities( Vs) of soils and rocks in Tianshui city were analyzed by the method of mathematical statistics. It is shown that the Vsof any kinks of soils and rocks have large variation range,changing with the depth of soil and the weathering degree of rock; Vsof each kinds of soils and rocks generally have the characteristics of normal distribution,furthermore,the Vsat the peak or dominance ranges of normal distribution could show the physical behavior of soils and rocks. From the relationships between Vsand depth of different soils and rocks,it can be seen that Vsof such loose deposits as silt,clayey silt,rounded gravel and gravel cobble have good correlation with depth,which can be expressed by quadratic or power functions,while Vsof base rocks like mud rock,sandstone and breccia,which are mainly influenced by weathering degree,have weak relation with depth.
In this paper,1294 groups of shear wave velocities( Vs) of soils and rocks in Tianshui city were analyzed by the method of mathematical statistics. It is shown that the Vsof any kinks of soils and rocks have large variation range,changing with the depth of soil and the weathering degree of rock; Vsof each kinds of soils and rocks generally have the characteristics of normal distribution,furthermore,the Vsat the peak or dominance ranges of normal distribution could show the physical behavior of soils and rocks. From the relationships between Vsand depth of different soils and rocks,it can be seen that Vsof such loose deposits as silt,clayey silt,rounded gravel and gravel cobble have good correlation with depth,which can be expressed by quadratic or power functions,while Vsof base rocks like mud rock,sandstone and breccia,which are mainly influenced by weathering degree,have weak relation with depth.
引文
[1]成玉祥,王亮,张骏,等.天水地区的新构造运动研[A].地球探测科学与技术新进展[C].北京:中国科学技术出版社,2002,125-127.CHENG Yuxiang,WANG Liang,ZHANG Jun,et al.The study on theneotectonic movement in Tianshui area[A].The process of the science and technology of earth exploration[C].Beijing:Chinese Science Technique Press,2002,125-127.(in Chinese)
[2]成玉祥,张骏,杜东菊.天水地区新构造运动特征研究[J].工程地质学报,2007,15(4):549-554.CHENG Yuxiang,ZHANG Jun,DU Dongju.Study onneotectonic movement features in Tianshui area[J].Journal of Engineering Geology,2007,15(4):549-554.(in Chinese)
[3]石玉成,卢育霞.汶川8.0级地震甘肃灾区震害特点级恢复重建对策[J].西北地震学报,2009,31(1):1-7.SHI Yuoheng,LU Yuxia.The damage features of Wenchuan 8.0 earthquake in Gansu disaster area and countermeasures of reconstruction[J].Northwestern Seismological Journal,2009,31(1):1-7.(in Chinese)
[4]廖振鹏.地震小区划:理论与实践[M].北京:地震出版社,1989.LIAO zhenpeng.Seismic microzonation:theory and practice[M].Beijing:Seismological Press,1989.(in Chinese)
[5]汪闻韶.土工地震减灾工程中的一个重要参量剪切波[J].水利学报,1994,25(3):80-84.WANG Wenshao.An important parameter in geotechnical engineering for earthquake disaster mitigation—shear wave velocity[J].Shuili Xuebao,1994,25(3):80-84.(in Chinese)
[6]GB 50011-2010建筑抗震设计规范[S].GB 50011-2010 Code for Seismic Design of Buildings[S].(in Chinese)
[7]刘红帅,郑桐,齐文浩,等.常规土类剪切波速与埋深的关系分析[J].岩土工程学报,2010,32(7):1142–1149.LIU Hongshuai,ZHENG Tong,QI Wenhao,et al.Relationship between shear wave velocity and depth[J].Chinese Journal of Geotechnical Engineering,2010,32(7):1142-1149.(in Chinese)
[8]程祖锋,李萍,李燕,等.深圳地区部分岩土类型剪切波速与深度的关系分析[J].工程地质学报,1997,5(2):163-168.CHENG Zufeng,LI Ping,LI Yan,et al.Analysis of relationship between shear wave velocity and depth of some types of soil and rock in Shenzhen region[J].Journal of Engineering Geology,1997,5(2):163-168.(in Chinese)
[9]陈国兴,徐建龙,袁灿勤.南京城区岩土体剪切波速与土层深度的关系[J].南京建筑工程学院学报,1998,45(2):32-37.CHEN Guoxing,XU Jianlong,YUAN Canqin.Relation between depth and shear wave velocity of soil and bedrock in Nanjing city[J].Journal of Nanjing Architectural and Civil Engineering Institure,1998,45(2):32-37.(in Chinese)
[10]战吉艳,陈国兴,刘建达.苏州城区深软场地土剪切波速与土层深度的经验关系[J].世界地震工程,2009,25(2):12-17.ZHAN Jiyan,CHEN Guoxing,LIU Jianda.Empirical relationship between shear wave velocity and soil depth on deep soft sites in urban area of Suzhou city[J].World Earthquake Engineering,2009,25(2):12-17.(in Chinese)
[11]邱志刚,薄景山,罗奇峰.土壤剪切波速与埋深关系的统计分析[J].世界地震工程,2011,27(3):81-88.QIU Zhigang,BO Jingshan,LUO Qifeng.Statistical analysis of relationship between shear wave velocity and depth of soil[J].World Earthquake Engineering,2011,27(3):81-88.(in Chinese)
[12]梅新忠,王振德,王晨光.工程勘察中悬挂式波速测井方法的应用[J].工程勘察,2006,(增刊):22-25.MEI Xinzhong,WANG Zhende,WANG Chenguang.Application of the suspension wave measure method in geotechnical investigation[J].Journal of Geotechnical Investigation&Surveying,2006,(S1):22-25.(in Chinese)
[2]成玉祥,张骏,杜东菊.天水地区新构造运动特征研究[J].工程地质学报,2007,15(4):549-554.CHENG Yuxiang,ZHANG Jun,DU Dongju.Study onneotectonic movement features in Tianshui area[J].Journal of Engineering Geology,2007,15(4):549-554.(in Chinese)
[3]石玉成,卢育霞.汶川8.0级地震甘肃灾区震害特点级恢复重建对策[J].西北地震学报,2009,31(1):1-7.SHI Yuoheng,LU Yuxia.The damage features of Wenchuan 8.0 earthquake in Gansu disaster area and countermeasures of reconstruction[J].Northwestern Seismological Journal,2009,31(1):1-7.(in Chinese)
[4]廖振鹏.地震小区划:理论与实践[M].北京:地震出版社,1989.LIAO zhenpeng.Seismic microzonation:theory and practice[M].Beijing:Seismological Press,1989.(in Chinese)
[5]汪闻韶.土工地震减灾工程中的一个重要参量剪切波[J].水利学报,1994,25(3):80-84.WANG Wenshao.An important parameter in geotechnical engineering for earthquake disaster mitigation—shear wave velocity[J].Shuili Xuebao,1994,25(3):80-84.(in Chinese)
[6]GB 50011-2010建筑抗震设计规范[S].GB 50011-2010 Code for Seismic Design of Buildings[S].(in Chinese)
[7]刘红帅,郑桐,齐文浩,等.常规土类剪切波速与埋深的关系分析[J].岩土工程学报,2010,32(7):1142–1149.LIU Hongshuai,ZHENG Tong,QI Wenhao,et al.Relationship between shear wave velocity and depth[J].Chinese Journal of Geotechnical Engineering,2010,32(7):1142-1149.(in Chinese)
[8]程祖锋,李萍,李燕,等.深圳地区部分岩土类型剪切波速与深度的关系分析[J].工程地质学报,1997,5(2):163-168.CHENG Zufeng,LI Ping,LI Yan,et al.Analysis of relationship between shear wave velocity and depth of some types of soil and rock in Shenzhen region[J].Journal of Engineering Geology,1997,5(2):163-168.(in Chinese)
[9]陈国兴,徐建龙,袁灿勤.南京城区岩土体剪切波速与土层深度的关系[J].南京建筑工程学院学报,1998,45(2):32-37.CHEN Guoxing,XU Jianlong,YUAN Canqin.Relation between depth and shear wave velocity of soil and bedrock in Nanjing city[J].Journal of Nanjing Architectural and Civil Engineering Institure,1998,45(2):32-37.(in Chinese)
[10]战吉艳,陈国兴,刘建达.苏州城区深软场地土剪切波速与土层深度的经验关系[J].世界地震工程,2009,25(2):12-17.ZHAN Jiyan,CHEN Guoxing,LIU Jianda.Empirical relationship between shear wave velocity and soil depth on deep soft sites in urban area of Suzhou city[J].World Earthquake Engineering,2009,25(2):12-17.(in Chinese)
[11]邱志刚,薄景山,罗奇峰.土壤剪切波速与埋深关系的统计分析[J].世界地震工程,2011,27(3):81-88.QIU Zhigang,BO Jingshan,LUO Qifeng.Statistical analysis of relationship between shear wave velocity and depth of soil[J].World Earthquake Engineering,2011,27(3):81-88.(in Chinese)
[12]梅新忠,王振德,王晨光.工程勘察中悬挂式波速测井方法的应用[J].工程勘察,2006,(增刊):22-25.MEI Xinzhong,WANG Zhende,WANG Chenguang.Application of the suspension wave measure method in geotechnical investigation[J].Journal of Geotechnical Investigation&Surveying,2006,(S1):22-25.(in Chinese)
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