[1]李天宁,汪云龙,张瑞滨.砾性土剪切波速影响因素试验研究[J].地震工程与工程振动,2019,39(01):166-171.[doi:10.13197/j.eeev.2019.01.166.litn.019]
 LI Tianning,WANG Yunlong,ZHANG Ruibin.Analysis of the influence factors on shear-wave velocity of gravelly soils[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(01):166-171.[doi:10.13197/j.eeev.2019.01.166.litn.019]
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砾性土剪切波速影响因素试验研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年01
页码:
166-171
栏目:
论文
出版日期:
2019-02-28

文章信息/Info

Title:
Analysis of the influence factors on shear-wave velocity of gravelly soils
作者:
李天宁1 汪云龙1 张瑞滨2
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. 上海市基础工程集团有限公司, 上海 200002
Author(s):
LI Tianning1 WANG Yunlong1 ZHANG Ruibin2
1. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. Shanghai Foundation Engineering Group Co. Ltd, Shanghai 200002, China
关键词:
含砾量相对密度固结应力应力比剪切波速
Keywords:
gravel contentrelative densityconsolidation stressconsolidation stress ratioshear-wave velocity
分类号:
TU41
DOI:
10.13197/j.eeev.2019.01.166.litn.019
摘要:
剪切波速被认为是砾性土液化判别的有效指标,为探究砾性土剪切波速的影响因素,设计四因素三水准试验,利用GDS大型三轴-剪切波速设备研究含砾量、相对密度、固结应力和应力比等因素对砾性土剪切波速的影响。试验结果表明:砾性土的剪切波速与前述因素都有较好的相关性;当含砾量、相对密度、固结应力、应力比等增大,砾性土的剪切波速也随之增大;四个因素对砾性土剪切波速的影响程度与模式存在差异,其中固结应力是最为显著的影响因素。
Abstract:
Shear-wave velocity (vs) of gravelly soils is considered as an effective indicator for estimating liquefaction potential of gravelly soils. To investigate the influence factors on shear-wave velocity of gravelly soils, tests of three levels using GDS triaxial-bender elements system are designed and conducted. The influence of four factors, i.e., gravel content (gc), relative density (Dr), consolidation pressure (σ3) and consolidation stress ratio (Kc), are studied. The test results show:the shear-wave velocity of gravelly soils is closely related to the four factors; the shear-wave velocity of gravelly soil increases as the four factors increase; the ways and extents of the four influence factors on vs are different that the effective stress is the most significant factor.

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备注/Memo

备注/Memo:
收稿日期:2018-08-05;改回日期:2018-10-05。
基金项目:国家自然科学基金项目(41602321,41272357);黑龙江省科学基金项目(E2017064)
作者简介:李天宁(1994-),女,硕士研究生,主要从事岩土地震工程、土工测试等方面的研究.E-mail:ltniem@163.com
通讯作者:汪云龙。E-mail:wyl_iem@hotmail.com
更新日期/Last Update: 1900-01-01