泥石流地声参数传播特征值的测试与分析

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	泥石流地声参数传播特征值的测试与分析
	陈精日; 刘立秋; 叶明富
刊名	山地学报
	1999
卷号	17 期号:4 页码:349-352
关键词	泥石流地声衰减特征值频谱
ISSN号	1008-2786
其他题名	TEST AND ANALYSIS FOR DEBRIS FLOW GROUND SOUND INTERFEX VALUE
通讯作者	陈精日
合作状况	其它
中文摘要	应用新的地声参数测试仪，在现场采集了多阵泥石流地声信号，并对数据进行了初步分析处理，提出泥石流地声参数值的大小与检测距离有关，地声波的衰减系数与埋设传感器地点的岩体质地有关。利用泥石流地声随距离变化的衰减系数，从而建立泥石流地声报警门槛值
英文摘要	Some result s in debris flow warning have been got , which concern ground sound parameters and debris flow discharge. Some warning devices about debris flow were built in previous years , but they are only preliminary steps , and there are still problems unsolved. For the sake of research on the spread characteristics of debris flow , a new set- up with four sensors was invented. These sensors were placed in different distances f rom the channel - blank that debris flow impacted. More than twenty ground sound datas were recorded and analiyzed. The relationships between FFT figure , wave figure and the distances f rom the back have shown that the more the distant , the less the values of FFT and wave. Thus we can easily calculate the decline coefficient s of the ground sounds with the distances by com2 parisons of the different FFT and wave figures. Using this method , we have established the threshold for debris flow warning in J iangjia Ravine. The research result s also show that the declining coefficient s are associated with the types of deposit s and rocks where the sensors were put . The ground sound declines faster in debris flow sediment s than in slate. This implies that the different ground sound also resulted in different st ratum. Analysis of these findings may provide more accurate values for debris flow warning system.
学科主题	P642.23
分类号	P642.23
收录类别	CSCD ; 北大中文核心
资助信息	中国科学院特别支持领域“山地灾害———泥石流·滑坡基础研究”资助(编号:961303) 。
语种	中文
CSCD记录号	CSCD:733061
公开日期	2011-04-06
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/2919]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
作者单位	中国科学院水利部成都山地灾害与环境研究
推荐引用方式 GB/T 7714	陈精日,刘立秋,叶明富. 泥石流地声参数传播特征值的测试与分析[J]. 山地学报,1999,17(4):349-352.
APA	陈精日,刘立秋,&叶明富.(1999).泥石流地声参数传播特征值的测试与分析.山地学报,17(4),349-352.
MLA	陈精日,et al."泥石流地声参数传播特征值的测试与分析".山地学报 17.4(1999):349-352.