鲁西平原地区土体剪切波速与埋深关系研究
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摘要
鲁西平原地区属黄河冲积平原,地势平坦,工程地质情况较单一,场地类别以Ⅲ类场地为主。利用鲁西平原地区常见土类的剪切波速与埋深的数据,使用4种回归模型建立了它们之间的经验关系式,并对这些经验式的合理性进行了讨论。结果表明:鲁西平原地区常见土类的剪切波速与埋深之间有明显的相关性,基于幂函数的回归模型(v_(si)=ah■+c)得到的经验关系式拟合效果最佳,具有较好的应用价值。
Plain area of western Shandong which belongs to the Yellow River alluvial plain is flat and has simple engineering geological condition, and site category in the area is given priority to Ⅲ class in Chinese Code for Seismic Design of Buildings. Using data of shear wave velocity and depth of common soils in the plain area, empirical relationships between them were established by using 4 regression models, and the rationalities of these empirical relationships were discussed respectively. The results show that there are obvious correlations between shear wave velocity and depth of common soils in the plain area, and the fitting effect of the empirical formulas obtained by the regression model based on power function(v_(si)=ah■+c) is the best, and the formulas have good application value.
Plain area of western Shandong which belongs to the Yellow River alluvial plain is flat and has simple engineering geological condition, and site category in the area is given priority to Ⅲ class in Chinese Code for Seismic Design of Buildings. Using data of shear wave velocity and depth of common soils in the plain area, empirical relationships between them were established by using 4 regression models, and the rationalities of these empirical relationships were discussed respectively. The results show that there are obvious correlations between shear wave velocity and depth of common soils in the plain area, and the fitting effect of the empirical formulas obtained by the regression model based on power function(v_(si)=ah■+c) is the best, and the formulas have good application value.
引文
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[17] 蒋其峰,魏玮,王红卫,等.山东省场地类别分布及地震动峰值加速度区划调整[J].震灾防御技术,2017,12(3):501-510.JIANG Qifeng,WEI Wei,WANG Hongwei,et al.Site type distribution and seismic peak ground acceleration zonation adjustment of Shandong[J].Technology for Earthquake Disaster Prevention,2017,12(3):501-510.
[2] 汪闻韶.剪切波速在评估地基饱和砂层地震液化可能性中的应用[J].岩土工程学报,2001,23(6):655-658.WANG Wenshao.Utilization of shear wave velocity in assessment of liquefaction potential of saturated sand under level ground during earthquakes[J].Chinese Journal of Geotechnical Engineering,2001,23(6):655-658.(in Chinese)
[3] CAO Zhenzhong,YUAN Xiaoming,et al.Shear wave velocity-based approach for evaluating gravel soils liquefaction[J].Journal of Rock Mechanics and Geotechnical Engineering ,2010,29(5):943-951.
[4] 王亮,薄景山,李孝波,等.砂土液化判别方法研究若干进展[J].世界地震工程,2017,33(4):141-150.WANG Liang,BO Jingshan,LI Xiaobo,et al.Research progress on methods of sand liquefaction potential evaluating[J].World Earthquake Engineering,2017,33(4):141-150.(in Chinese)
[5] 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:自然科学版,1998(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 Institute,1998(2):32-37.(in Chinese)
[6] 陶小三,杨伟林,高志兵,等.南京河西地区岩土体剪切波速与土层深度的关系[J].防灾减灾工程学报,2009,29(3):320-324.TAO Xiaosan,YANG Weilin,GAO Zhibing,et al.Relation between depth and shear wave speed of bedrocks and soils in Hexi district of Nanjing city[J].Journal of Disaster Prevent and Mitigation Eng,2009,29(3):320-324.(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.Relationship between shear wave velocity and depth of conventional soils[J].Chinese Journal of Geotechnical Engineering,2010,32(7):1142-1149.(in Chinese)
[8] 荣棉水,吕悦军,蒋其峰,等.渤海常见土类剪切波速与埋深关系分析[J].震灾防御技术,2017,12(2):288-297.RONG Mianshui,LV Yuejun,JIANG Qifeng,et al.Relationship between shear wave velocity and depth for conventional soils in the bohai sea area[J].Technology for Earthquake Disaster Prevention,2017,12(2):288-297.(in Chinese)
[9] 中华人民共和国住房和城乡建设部.构筑物抗震设计规范[M].中国计划出版社,2012.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Design Code for Antiseismic of Special Structures[M].China Planning Press,2012.(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):11-17.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):11-17.(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] 薛锋,王庆良,胡亚轩,等.西安市岩土体剪切波速与土层深度关系的研究[J].地震工程学报,2014,36(2):249-255.XUE Feng,WANG Qingliang,HU Yaxuan,et al.Study on the relationship between soil depth and shear wave velocity of rock and soil mass in Xi’an city[J].China Earthquake Engineering Journal,2014,36(2):249-255.(in Chinese)
[13] 《山东省地质矿产志》编纂委员会.山东省地质矿产志[M].山东省地质矿产局,1992.Compilation Committee of Annals of Geology and Mineral Resources of Shandong Province.Annals of Geology and mineral resources of shandong province[M].Bureau of Geology and Mineral Resources of Shandong,1992.(in Chinese)
[14] 中华人民共和国住房和城乡建设部.GB 50011-2010 建筑抗震设计规范[M].中国建筑工业出版社,2010.Ministry of Housing and Urban-Rural Development of the People′s Republic of China.GB 50011-2010 Code for Seismic Design of Buildings[M].China Architecture & Building Press,2010.(in Chinese)
[15] 陈卓识,侯龙清,袁晓铭,等.温州深软场地剪切波速实测误差及其对PGA影响研究[J].世界地震工程,2018,34(02):71-79.CHEN Zhuoshi,HOU Longqing,YUAN Xiaoming,et al.Research on test error of in-situ Shear-wave velocity and its related impact on PGA in Wenzhou Prefecture[J].World Earthquake Engineering,2018,34(02):71-79 .(in Chinese)
[16] 陈拓,吴志坚,王平.兰州黄土场地地震动参数量化研究[J].世界地震工程,2017,33(01):166-171.CHEN Tuo,WU Zhijian,WANG Ping.Quantitative analysis of ground motion parameter of Lanzhou loessial sites[J].World Earthquake Engineering,2017,33(1):166-171.(in Chinese)
[17] 蒋其峰,魏玮,王红卫,等.山东省场地类别分布及地震动峰值加速度区划调整[J].震灾防御技术,2017,12(3):501-510.JIANG Qifeng,WEI Wei,WANG Hongwei,et al.Site type distribution and seismic peak ground acceleration zonation adjustment of Shandong[J].Technology for Earthquake Disaster Prevention,2017,12(3):501-510.