营口—辽滨经济区浅基础适宜性分区
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摘要
营口—辽滨经济区有大面积的软土分布。通过对分布地区软土层的承载力计算和浅基础的规范法沉降量计算,取55 mm作为地基附加沉降界线值,并结合工程危险性指标将研究区划分为Ⅰ级—工程适宜性良好区,Ⅱ级—工程适宜性一般区,Ⅲ级—工程适宜性较差区3级分区。其中Ⅰ级区主要分布在营口市区西部和盐区南部,Ⅱ区主要分布在营口市区西南部及辽滨乡地区、盐区除南部之外的地区,Ⅲ区主要在营口市区东部。Ⅰ、Ⅱ、Ⅲ类区分别占软土分区总面积的10.6%、86.2%、3.2%。
There is a large area of soft soil in distribution in Yingkou—Liaobin Economic Area.The authors divided the studied area into the grade Ⅰ—engineering suitability good area,grade Ⅱ—engineering suitability general area and grade Ⅲ—engineering suitability less area,according to the bearing capacity calculation of soft soil layer and settlement calculation of normative method for shallow foundation,with 55 mm as the boundary of foundation's additional settlement and combining with indexes of engineering risk.The grade Ⅰ zone mainly distributes in the west of Yingkou City and the south of salt region,grade Ⅱ mainly distributes in southwestern Yingkou City and the areas except the south of Liaobinxiang and salt areas and the grade Ⅲ mainly distributes in eastern Yingkou City.The areas of the grates Ⅰ,Ⅱ,Ⅲ are accounted 10.6%,86.2% and 3.2% of total area of soft soil in this Economic Area,respectively.
There is a large area of soft soil in distribution in Yingkou—Liaobin Economic Area.The authors divided the studied area into the grade Ⅰ—engineering suitability good area,grade Ⅱ—engineering suitability general area and grade Ⅲ—engineering suitability less area,according to the bearing capacity calculation of soft soil layer and settlement calculation of normative method for shallow foundation,with 55 mm as the boundary of foundation's additional settlement and combining with indexes of engineering risk.The grade Ⅰ zone mainly distributes in the west of Yingkou City and the south of salt region,grade Ⅱ mainly distributes in southwestern Yingkou City and the areas except the south of Liaobinxiang and salt areas and the grade Ⅲ mainly distributes in eastern Yingkou City.The areas of the grates Ⅰ,Ⅱ,Ⅲ are accounted 10.6%,86.2% and 3.2% of total area of soft soil in this Economic Area,respectively.
引文
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[9]于子望,李洪岩,张延军.辽宁省海岸带软土模型及沉降系数研究[J].工程地质学报,2008,16(增刊):6-9.YU Zi-wang,LI Hong-yan,ZHANG Yan-jun.Researchon soft soil model and subsidence coefficient of coastalzone of Liaoning Province[J].Journal of EngineeringGeology,2008,16(Suppl.):6-9.
[10]张延军,王世辉.辽宁省海岸带软土发育规律、动力学特征及其工程影响研究报告[S].2008.ZHANG Yan-jun,WANG Shi-hui.Development rules,dynamic characteristics and project influence of soft soilin Liaoning coastal zone[S].2008.
[2]方鸿琪,杨闽中.工程场地的特征与工程地质分区[J].工程地质学报,2002,10(3):244-247.FANG Hong-qi,YANG Min-zhong.Characteristics of en-gineering site&geological zoning[J].Journal of Engi-neering Geology,2002,10(3):244-247.
[3]王常明,黄超.营口软土的固结不排水剪切蠕变特性[J].吉林大学学报:地球科学版,2009,39(4):728-733.WANG Chang-ming,HUANG Chao.Creep characteris-tics for consolidated-undrained triaxial compression ofYingkou soft soil[J].Journal of Jilin University:EarthScience Edition,2009,39(4):728-733.
[4]张敏江,姚敏,邱欣.辽南海积软土流变本构模型的研究[J].沈阳建筑大学学报:自然科学版,2003,19(4):260-263.ZHANG Min-jiang,YAO Min,QIUXin.Study on stress-strain time relationship model of soft soils in Yingkou dis-trict[J].Journal of Shenyang Jianzhu University:Sci-ence Edition,2003,9(14):260-263.
[5]张敏江,关超,张树标.营口地区软土的流变模型[J].沈阳建筑大学学报:自然科学版,2004,20(2):110-113.ZHANG Min-jiang,GUANChao,ZHANG Shu-biao.Therheological models of soft soils in Yingkou district[J].Journal of Shenyang Jianzhu University:Science Edition,2004,20(2):110-113.
[6]石兆吉,郁寿松.塘沽新港地区震陷计算分析[J].土木工程学报,1988,4(11):24-34.SHI Zhao-ji,YU Shou-song.Seismic settlement evalua-tion for Tanggu newport area[J].China Civil Engineer-ing Journal,1988,4(11):24-34.
[7]雷华阳,肖树芳.软土结构性的试验研究及其对工程特性的影响[J].吉林大学学报:地球科学版,2004,34(1):106-110.LEI Hua-yang,XIAO Shu-fang.Experimental study onsoft soil structural property and its influences on engineer-ing characteristics[J].Journal of Jilin University:EarthScience Edition,2004,34(1):106-110.
[8]杨石红,刘静蓉,刘金珠.软弱地基土层震陷简化计算方法研究[J].世界地震工程,1997,13(6):53-61.YANG Shi-hong,LIU Jing-rong,LIU Jin-zhu.Study ofsimplified method on calculating the seismic settlement offoundation on soft oil[J].World Information on Earth-quake Engineering,1997,13(6):53-61.
[9]于子望,李洪岩,张延军.辽宁省海岸带软土模型及沉降系数研究[J].工程地质学报,2008,16(增刊):6-9.YU Zi-wang,LI Hong-yan,ZHANG Yan-jun.Researchon soft soil model and subsidence coefficient of coastalzone of Liaoning Province[J].Journal of EngineeringGeology,2008,16(Suppl.):6-9.
[10]张延军,王世辉.辽宁省海岸带软土发育规律、动力学特征及其工程影响研究报告[S].2008.ZHANG Yan-jun,WANG Shi-hui.Development rules,dynamic characteristics and project influence of soft soilin Liaoning coastal zone[S].2008.
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