| 温州深软场地剪切波速实测误差及其对PGA影响研究 |
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| 引用本文： | 陈卓识,侯龙清,袁晓铭,李楠.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(2):071-79. |
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| 作者姓名： | 陈卓识 侯龙清 袁晓铭 李楠 |
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| 作者单位： | 1. 中国地震局工程力学研究所, 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080;2. 东华理工大学 建筑工程学院, 江西 抚州 344000;3. 辽宁省建设科学研究院有限责任公司, 辽宁 沈阳 110020 |
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| 摘 要： | 该研究在温州两个深软土层场地上完成了剪切波速测试误差专项实验，统计拟合了误差分布规律并研究了其对PGA的影响，得到结论:每米深度上的实测误差基本符合标准正态分布，温州地区深软场地的测试误差与我国其他几个地区覆盖土层较浅场地上的每米实测误差程度基本相同；两个场地上各深度的误差标准差大致相同，约为16%；实测误差对PGA影响明显，误差取1倍标准差时PGA的变化程度可能达到30%，取2倍标准差时可能高达45%；PGA的变化程度受输入地震动的频率特性制约，长周期频率成分对深软场地计算结果的影响明显。
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| 关 键 词： | 温州 深软场地 剪切波速 实测误差 PGA |
Research on test error of in-situ Shear-wave velocity and its related impact on PGA in Wenzhou Prefecture |
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| CHEN Zhuoshi,HOU Longqing,YUAN Xiaoming,LI Nan.Research on test error of in-situ Shear-wave velocity and its related impact on PGA in Wenzhou Prefecture[J].World Information On Earthquake Engineering,2018,34(2):071-79. |
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| Authors: | CHEN Zhuoshi HOU Longqing YUAN Xiaoming LI Nan |
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| Institution: | 1. Key Laboratory of Earthquake Engineering and Engineering Vibration of CEA, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;2. College of Civil Engineering and Architecture, East China University of Technolo |
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| Abstract: | This paper carried out a special experiment of test error of in-situ shear-wave velocity at two deep-soft sites in Wenzhou. By finishing the research on statistical rule of test error and its related effect on PGA, the conclusions are as followed. Per-meter test error obeys the normal distribution and remains at the similar deviation level which compares to some other shallow soil sites. The standard deviation(SD) of per-metertest error is about 16%.Test error has significate impact on PGA:1-time SD may shift 30% of PGA. When that turns to twice SD, the PGA variation would even high up to 45%. The change of PGA is highly related to the frequency band of the input ground motion. When considering the test error, long-period component has great impact on PGA of these two deep-soft sites. |
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| Keywords: | Wenzhou prefecture soft-deep site shear-wave velocity in-situ test error PGA |
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