渤海海域典型场地土的动力学特征
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摘要
文中通过收集已完成的近40个海洋平台的工作报告中的钻孔资料,通过室内振动三轴试验,整理出372渤海原状土样动力学测试的原始数据,进行归纳分析,利用数理统计学的方法给出渤海海域内不同类型土体、不同埋深的动剪切模量比和阻尼比随剪应变变化的平均曲线及推荐值。并以三种典型土类为例,将统计值与规范值、推荐值进行比较分析,得到了非常有价值的结论。本文的结果可供渤海海上工作无试验资料和今后修订渤海海上土动力学参数规范值时参考使用,对工程抗震和地震安全性评价也具有一定的借鉴意义。
In this paper,the research is sorted out more than 372 original data tested by undisturbed soil sample dynamics of the Bohai Sea by means of collecting the borehole records in the work reports of nearly 40 ocean-platforms which had been finished.Using the mathematical statistics method,the article provides the average curves and recommended values of the dynamic shear modulus ratio and the damping ratio varied with the shear strain for different soil types and different depth of the Bohai Sea.Furthermore,the statistic values,the code values and the recommended values illustrating three typical soils were analysed comparatively and then the valuable results were obtained.The results of this paper would be utilized when working on the sea without test data and revising soil dynamics parameters code values of the Bohai Sea.It would have certain instructive significance to engineering seismology and seismic safety evaluation.
In this paper,the research is sorted out more than 372 original data tested by undisturbed soil sample dynamics of the Bohai Sea by means of collecting the borehole records in the work reports of nearly 40 ocean-platforms which had been finished.Using the mathematical statistics method,the article provides the average curves and recommended values of the dynamic shear modulus ratio and the damping ratio varied with the shear strain for different soil types and different depth of the Bohai Sea.Furthermore,the statistic values,the code values and the recommended values illustrating three typical soils were analysed comparatively and then the valuable results were obtained.The results of this paper would be utilized when working on the sea without test data and revising soil dynamics parameters code values of the Bohai Sea.It would have certain instructive significance to engineering seismology and seismic safety evaluation.
引文
[1]薄景山,李秀领,李山有.场地条件对地震动影响研究的若干进展[J].世界地震工程,2003,19(2):11-15.BO Jingshan,LI Xiuling,LI Shanyou.Some progress of study on the effect of site conditions on ground motion[J].World Earthquake Engineer-ing,2003,19(2):11-15.
[2]陈国兴,谢君斐,张克绪.土的动模量和阻尼比的经验估计[J].地震工程与工程振动,1995,15(1):73-84.CHEN Guoxing,XIE Junfei,ZHANG Kexu.The empirical evaluation of soil moduli and damping ratio for dynamic analysis[J].Journal of Earth-quake Engineering And Engineering Vibration,1995,15(1):73-84.
[3]董太禄、扬光复,徐善民.渤海南部现代沉积特征[J].海洋地质与第四纪地质,1995,15(4):131-134.DONG Tailu,YANG Guangfu,XU Shanmin.Modern Sedimentary characteristics in the south of the Bohai sea[J].Marine Geology&QuaternaryGeology,1995,15(4):131-134.
[4]GB17503-1998海上平台场址工程地质勘察规范[S].GB17503-1998 Specifications for Offshore Platform Engineering Geology Investigation[S].
[5]兰景岩,薄景山.土动力学参数对设计反应谱的影响[J].地震工程与工程振动,2008,28(3):184-188.LAN Jingyan,BO Jingshan.Effect of soil dynamic parameters on design response spectrum[J].Journal of Earthquake Engineering And Engineer-ing Vibration,2008,28(3):184-188.
[6]李小军.海域工程场地地震安全性评价的特殊问题[J].震灾防御技术,2006,1(2):97-104.LI Xiaojun.Special problems on evaluation of seismic safety for offshore engineering site[J].Technology For Earthquake Disaster Prevention,2006,1(2):97-107.
[7]李自红.太原地区土动剪切模量和阻尼比几种值的合理性比较[J].山西地震,2006,(1):29-37.LI Zihong.Comparison of reasonableness for some kinds of values of dynamic soil shear modulus and damping ratio in Taiyuan region[J].Earth-quake Research In Shanxi,2006,1:29-37.
[8]刘红帅,薄景山,吴兆营,等.土体参数对地表加速度峰值和反应谱的影响[J].地震研究,2005,28(2):167-171.LIU Hongshuai,BO Jingshan,WU Zhaoying.et al.Effects of soil parameters on ground surface acceleration peak and response spectra[J].Jour-nal of Seismological Research,2005,28(2):167-171.
[9]刘雪珠,陈国兴,胡庆兴.南京地区新近沉积土的动剪切模量和阻尼比的初步研究[J].地震工程与工程振动,2002,22(5):127-131.LIU Xuezhu,CHEN Guoxing,HU Qingxing.Primary study on dynamic shear modulus and damping ratio of recently deposited soil in area of Nan-jing[J].Journal of Earthquake Engineering And Engineering Vibration,2002,22(5):127-131.
[10]吕悦军,唐荣余,沙海军.渤海海底土类动剪切模量比和阻尼比试验研究[J].防灾减灾工程学报,2003,23(2):35-42.LYuejun,TANG Rongyu,SHA Haijun.Experimental study on dynamic shear modulus ratio and damping ratio of the soils of Bohai seafloor[J].Journal of Disaster Prevention and Mitigation Engineering,2003,23(2):35-42.
[11]牛作民.渤海湾海相淤泥土工程物理性质的初步研究[J].海洋地质与第四纪地质,1986,6(3):35-42.NIU Zuomin.Geotechnical characteristics and origin of absorbability of marine puddly soil in Bohai gulf[J].Marine Geology&Quaternary Geolo-gy,1986,6(3):35-42.
[12]石兆吉.土壤的动剪切模量和阻尼比,地震小区划-理论与实践[M].北京:地震出版社,1989:134-140.SHI Zhaoji.Measurement of dynamic modulus in shear and damping ratio of soils,Seismic Microzonation[M].Beijing:Earthquake Press,1989:134-140.
[13]孙静.岩土动剪切模量阻尼试验及应用研究[D].哈尔滨:中国地震局工程力学研究所,2004.SUN Jing.Experiment and application studies on dynamic shear modulus and damping of geotechnical media[D].Harbin:Institute of Engineer-ing Mechanics,China Seismological Bureau,2004.
[14]孙静,袁晓铭,孙锐.土动剪切模量和阻尼比的推荐值和规范值的合理性比较[J].地震工程与工程振动,2004,24(2):125-133.SUN Jing,YUAN Xiaoming,SUN Rui.Reasonability comparison between recommended and code values of dynamic shear modulus and dampingratio of soils[J].Journal of Earthquake Engineering and Engineering Vibration,2004,24(2):125-133.
[15]王绍博,丁海平.土动力参数对土层动力反应的影响[J].地震工程与工程振动,2001,21(1):105-108.WANG Shaobo,DING Haiping.Effect of soil dynamic parameters on seismic responses of soil layers[J].Journal of Earthquake Engineering AndEngineering Vibration,2001,21(1):105-108.
[16]邢延.渤海南部海底土的工程性质[J].中国海上油气(工程),1989,1(3):17-25.XING Yan.Engineering properties of seabed soil in the south part of Bohai gulf[J].China Offshore Oil And Gas,1989,1(3):17-25.
[17]袁晓铭,孙锐,孙静,等.常规土类动剪切模量和阻尼比试验研究[J],地震工程与工程振动,2000,20(4):133-139.YUAN Xiaoming,SUN Rui,SUN Jing,et al.Laboratory experimental study on dynamic shear modulus ratio and damping ratio of soils[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2000,20(4):133-139.
[18]DB001-94工程场地地震安全性评价工作规范[S].DB001-94,Evaluation of Seismic Safety for Engineering sites[S].
[19]朱国祥.土层地震反应分析中不同参数的敏感性分析[J].工程抗震,2004,3:27-32.ZHU Guoxiang.Sensitivity of different parameters applied in seismic analysis of multi-layer soil models[J].Earthquake Resistant Engineering,2004,3:27-32.
[2]陈国兴,谢君斐,张克绪.土的动模量和阻尼比的经验估计[J].地震工程与工程振动,1995,15(1):73-84.CHEN Guoxing,XIE Junfei,ZHANG Kexu.The empirical evaluation of soil moduli and damping ratio for dynamic analysis[J].Journal of Earth-quake Engineering And Engineering Vibration,1995,15(1):73-84.
[3]董太禄、扬光复,徐善民.渤海南部现代沉积特征[J].海洋地质与第四纪地质,1995,15(4):131-134.DONG Tailu,YANG Guangfu,XU Shanmin.Modern Sedimentary characteristics in the south of the Bohai sea[J].Marine Geology&QuaternaryGeology,1995,15(4):131-134.
[4]GB17503-1998海上平台场址工程地质勘察规范[S].GB17503-1998 Specifications for Offshore Platform Engineering Geology Investigation[S].
[5]兰景岩,薄景山.土动力学参数对设计反应谱的影响[J].地震工程与工程振动,2008,28(3):184-188.LAN Jingyan,BO Jingshan.Effect of soil dynamic parameters on design response spectrum[J].Journal of Earthquake Engineering And Engineer-ing Vibration,2008,28(3):184-188.
[6]李小军.海域工程场地地震安全性评价的特殊问题[J].震灾防御技术,2006,1(2):97-104.LI Xiaojun.Special problems on evaluation of seismic safety for offshore engineering site[J].Technology For Earthquake Disaster Prevention,2006,1(2):97-107.
[7]李自红.太原地区土动剪切模量和阻尼比几种值的合理性比较[J].山西地震,2006,(1):29-37.LI Zihong.Comparison of reasonableness for some kinds of values of dynamic soil shear modulus and damping ratio in Taiyuan region[J].Earth-quake Research In Shanxi,2006,1:29-37.
[8]刘红帅,薄景山,吴兆营,等.土体参数对地表加速度峰值和反应谱的影响[J].地震研究,2005,28(2):167-171.LIU Hongshuai,BO Jingshan,WU Zhaoying.et al.Effects of soil parameters on ground surface acceleration peak and response spectra[J].Jour-nal of Seismological Research,2005,28(2):167-171.
[9]刘雪珠,陈国兴,胡庆兴.南京地区新近沉积土的动剪切模量和阻尼比的初步研究[J].地震工程与工程振动,2002,22(5):127-131.LIU Xuezhu,CHEN Guoxing,HU Qingxing.Primary study on dynamic shear modulus and damping ratio of recently deposited soil in area of Nan-jing[J].Journal of Earthquake Engineering And Engineering Vibration,2002,22(5):127-131.
[10]吕悦军,唐荣余,沙海军.渤海海底土类动剪切模量比和阻尼比试验研究[J].防灾减灾工程学报,2003,23(2):35-42.LYuejun,TANG Rongyu,SHA Haijun.Experimental study on dynamic shear modulus ratio and damping ratio of the soils of Bohai seafloor[J].Journal of Disaster Prevention and Mitigation Engineering,2003,23(2):35-42.
[11]牛作民.渤海湾海相淤泥土工程物理性质的初步研究[J].海洋地质与第四纪地质,1986,6(3):35-42.NIU Zuomin.Geotechnical characteristics and origin of absorbability of marine puddly soil in Bohai gulf[J].Marine Geology&Quaternary Geolo-gy,1986,6(3):35-42.
[12]石兆吉.土壤的动剪切模量和阻尼比,地震小区划-理论与实践[M].北京:地震出版社,1989:134-140.SHI Zhaoji.Measurement of dynamic modulus in shear and damping ratio of soils,Seismic Microzonation[M].Beijing:Earthquake Press,1989:134-140.
[13]孙静.岩土动剪切模量阻尼试验及应用研究[D].哈尔滨:中国地震局工程力学研究所,2004.SUN Jing.Experiment and application studies on dynamic shear modulus and damping of geotechnical media[D].Harbin:Institute of Engineer-ing Mechanics,China Seismological Bureau,2004.
[14]孙静,袁晓铭,孙锐.土动剪切模量和阻尼比的推荐值和规范值的合理性比较[J].地震工程与工程振动,2004,24(2):125-133.SUN Jing,YUAN Xiaoming,SUN Rui.Reasonability comparison between recommended and code values of dynamic shear modulus and dampingratio of soils[J].Journal of Earthquake Engineering and Engineering Vibration,2004,24(2):125-133.
[15]王绍博,丁海平.土动力参数对土层动力反应的影响[J].地震工程与工程振动,2001,21(1):105-108.WANG Shaobo,DING Haiping.Effect of soil dynamic parameters on seismic responses of soil layers[J].Journal of Earthquake Engineering AndEngineering Vibration,2001,21(1):105-108.
[16]邢延.渤海南部海底土的工程性质[J].中国海上油气(工程),1989,1(3):17-25.XING Yan.Engineering properties of seabed soil in the south part of Bohai gulf[J].China Offshore Oil And Gas,1989,1(3):17-25.
[17]袁晓铭,孙锐,孙静,等.常规土类动剪切模量和阻尼比试验研究[J],地震工程与工程振动,2000,20(4):133-139.YUAN Xiaoming,SUN Rui,SUN Jing,et al.Laboratory experimental study on dynamic shear modulus ratio and damping ratio of soils[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2000,20(4):133-139.
[18]DB001-94工程场地地震安全性评价工作规范[S].DB001-94,Evaluation of Seismic Safety for Engineering sites[S].
[19]朱国祥.土层地震反应分析中不同参数的敏感性分析[J].工程抗震,2004,3:27-32.ZHU Guoxiang.Sensitivity of different parameters applied in seismic analysis of multi-layer soil models[J].Earthquake Resistant Engineering,2004,3:27-32.
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