江苏田湾核电工程场地动态参数特征分析
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摘要
场地地质条件、地震波测试及动态参数分析是核电工程场地可行性研究的重要内容。通过对区域地质特征、场地地质条件、野外钻探取样及室内试验结果分析,对江苏田湾核电站工程场地主要建筑物分布地段进行了8个钻孔的现场及室内单孔波速测试,利用测得的岩体剪切波和压缩波测试数据和测得的岩石重度,计算场地岩体的动态参数,建立波速与岩体完整性、风化等级之间的关系,并对岩体的完整性与风化等级进行了评价。结果表明,绿泥石片岩是场地的软弱夹层,虽然其规模有限,对场地不构成威胁,但要进行加固处理。所得结果可为核电工程抗震设计提供必需的参数和科学依据。
The geological condition,seismic wave test and dynamic parameter analysis are the important contents of feasibility research of the site of a nuclear power. According to the analysis of regional geological characteristics,the field geological condition,the field drill sampling and the test results of lab,single-hole seismic wave test in the field and lab are carried out for 8 holes in the main architectural zone of Tianwan Nuclear Power station project in Jiangshu Prwince,and the dynamic parameters of rock mass in the field are btained using shear wave and compression wave combined with the gravity of the rock mass. The relationship is built up among wave velocity,integrality and weathering degree of rock-mass,and the integrality and weathering degree of rock mass are also evaluated. This paper provides parameters and scientific basis for the aseismic design of the nuclear power station.
The geological condition,seismic wave test and dynamic parameter analysis are the important contents of feasibility research of the site of a nuclear power. According to the analysis of regional geological characteristics,the field geological condition,the field drill sampling and the test results of lab,single-hole seismic wave test in the field and lab are carried out for 8 holes in the main architectural zone of Tianwan Nuclear Power station project in Jiangshu Prwince,and the dynamic parameters of rock mass in the field are btained using shear wave and compression wave combined with the gravity of the rock mass. The relationship is built up among wave velocity,integrality and weathering degree of rock-mass,and the integrality and weathering degree of rock mass are also evaluated. This paper provides parameters and scientific basis for the aseismic design of the nuclear power station.
引文
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2周念清,楼梦林,唐益群等.秦山三期核电工程区域地震特征及场地地震波分析[J].地震工程与工程振动,2002,21(6):31～37
3周念清,朱学愚,唐和平等.秦山三期核电工程场地岩石力学性质与差异性沉降分析[J].岩石力学与工程学报,2002,21(10):1533～1536
4姚大全,汤有标,李杰.郯庐断裂带变形产物中的微观粘滑与蠕滑标志[J].地震地质,1995,17(2):177～184
5ToshitakaKamai.Monitoring the process of ground failure in repeated landslides and associated stability assessments[J].EngineeringGeology,1998,50(1/2):71～84
6温瑞智,周正华,孙平善等.断层场地地震动分析[J].地震工程与工程振动,2002,22(1):21～27
7LacyT E,McDowellD L,WilliceP A,et al.On representation of damage evolution in continuum damage mechanics[J].Int.J.DamageMechanics,1997,16(1):62～96
8李宁,张平,段庆伟等.裂隙岩体的细观动力损伤模型[J].岩石力学与工程学报,2002,21(11):1579～1584
9赵阳升,马宇,段康廉.岩层裂缝分形分布相关规律研究[J].岩石力学与工程学报,2002,21(2):219～222
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