| 兰州地区季节冻土声波现场测试研究 |
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| 引用本文： | 张建明,刘旭,朱元林,王兰民.兰州地区季节冻土声波现场测试研究[J].西北地震学报,2001,23(2):185-188. |
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| 作者姓名： | 张建明 刘旭 朱元林 王兰民 |
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| 作者单位： | 1. 中国科学院寒区旱区环境与工程研究所,
2. 中国地震局兰州地震研究所, |
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| 基金项目： | 中国科学院“九五”重点项目（KZ952-J1-216）资助 |
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| 摘 要： | 通过对兰州地区4个不同地貌单元季节冻土的现场声波波速测试，获得了0-1.5m深度范围内冻土和融土的纵、横波波速，实测了相应的黄土的密度、含水量及地温资料，分析了波速与土的胶结状态、温度和含水量的关系，结果表明，土的胶结程度对波速度有重要影响，土质疏松，波速较小；土质密实，波速较大，温度在0℃以上时，波速随含水量的增大而减小；温度在0℃以下时，波速随温度的降低而增大。
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| 关 键 词： | 季节冻土 波速 声波测试 兰州地区 密度 含水量 地温 |
| 文章编号： | 1000-0844（2001）02-0185-04 |
| 收稿时间： | 2000/11/9 0:00:00 |
| 修稿时间： | 2000年11月9日 |
A TEST STUDY ON WAVE VELOCITY DETERMINED BY USING SONISCOPE IN SEASONALLY FROZEN GROUND IN LANZHOU |
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| ZHANG Jian-ming,LIU Xu,ZHU Yuan-lin and WANG Lan-min.A TEST STUDY ON WAVE VELOCITY DETERMINED BY USING SONISCOPE IN SEASONALLY FROZEN GROUND IN LANZHOU[J].Northwestern Seismological Journal,2001,23(2):185-188. |
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| Authors: | ZHANG Jian-ming LIU Xu ZHU Yuan-lin and WANG Lan-min |
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| Institution: | ZHANG Jian ming 1,LIU Xu 2,ZHU Yuan lin 1,WANG Lan min 2 |
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| Abstract: | By using soniscope, the wave velocities in depth of 0 to 1.5 m of seasonally frozen ground at four geomorphic units in Lanzhou are obtained during the winter and the soil density,moisture content and ground temperature are measured respectively. Relations between the wave velocity and the cementation of soil, ground temperature and moisture content are analyzed. The results show that the cementation of soil has an important effect on the wave velocity. The better the cementation of soil, the greater the wave velocity. When the temperature of soil is above 0 ℃, wave velocity decreases with the increase of moisture content. When the temperature is below 0 ℃,wave velocity increases with decrease of the temperature of soil. |
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| Keywords: | Lanzhou Seasonally frozen ground Wave velocity Sonic measure |
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