必须声明标量变量 "@Script_ID"。 坝基岩体岩石质量指标、波速和透水率的关系——以青海玛沁地区玛尔挡水电站为例-《地球科学与环境学报》
|本期目录/Table of Contents|

[1]陈康达,宋彦辉,巨广宏,等.坝基岩体岩石质量指标、波速和透水率的关系——以青海玛沁地区玛尔挡水电站为例[J].地球科学与环境学报,2018,40(06):822-828.
 CHEN Kang-da,SONG Yan-hui,JU Guang-hong,et al.Relationships Among Rock Quality Designation, Wave Velocity and Permeability of Dam Foundation Rock Mass—Taking Ma’erdang Hydropower Station in Maqin Area of Qinghai, China as an Example[J].Journal of Earth Sciences and Environment,2018,40(06):822-828.
点击复制

坝基岩体岩石质量指标、波速和透水率的关系——以青海玛沁地区玛尔挡水电站为例(PDF)
分享到:

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第40卷
期数:
2018年第06期
页码:
822-828
栏目:
工程地质
出版日期:
2018-11-15

文章信息/Info

Title:
Relationships Among Rock Quality Designation, Wave Velocity and Permeability of Dam Foundation Rock Mass—Taking Ma’erdang Hydropower Station in Maqin Area of Qinghai, China as an Example
文章编号:
1672-6561(2018)06-0822-07
作者:
陈康达宋彦辉巨广宏戎娟陈子玉
1.长安大学地质工程与测绘学院,陕西 西安 710054;2.长安大学西部矿产资源与地质工程教育部重点实验室,陕西 西安 710054;3.中国电建集团西北勘测设计研究院有限公司,陕西 西安 710065
Author(s):
CHEN Kang-da SONG Yan-hui JU Guang-hong RONG Juan CHEN Zi-yu
1. School of Geology Engineering and Geometics, Chang’an University, Xi’an 710054, Shaanxi, China; 2. Key Laboratory of Western Mineral Resources and Geological Engineering of Ministry of Education, Chang’an University, Xi’an 710054, Shaanxi, China; 3. Northwest Engineering Corporation Limited of Power China, Xi’an 710065, Shaanxi, China
关键词:
坝基岩体质量分级岩石质量指标透水率水电站波速深度
Keywords:
dam foundation rock mass quality classification rock quality designation permeability hydropower station wave velocity depth
分类号:
P642;TV221.2
DOI:
-
文献标志码:
A
摘要:
坝基岩体质量分级指标包括岩石质量指标(RQD,Q)、纵波波速(V)以及透水率(ω)等。他们相互之间存在一定关系,并随深度(h)的变化而变化。以青海玛沁地区玛尔挡水电站河床坝基6个钻孔的实测数据为基础,对上述指标随深度的变化规律及相互关系进行研究。结果表明:同一深度的岩石质量指标差异较大,但整体上随深度的增加呈线性带状增大,上、下限的线性关系分别为Q=0.488h+67.886与Q=0.309h+2.319;透水率与深度具有较好的相关性,随深度增大,透水率呈幂函数曲线下降趋势,即ω=1 329.192h-1.599;岩石质量指标、透水率和深度的拟合度较高;随着岩石质量指标的增加,纵波波速整体上呈线性带状增大的趋势,上、下限的线性关系分别为V=40.493Q+3 612.9和V=32.458Q+1 822.6,而透水率的几何平均值呈下降趋势,与岩石质量指标的算术平均值具有很好的相关性,即ω=6.378-3.708×10-7Q3.832
Abstract:
The quality classification indicators of dam foundation rock mass include the rock quality designation(RQD,Q), the velocity of the longitudinal wave (V), the permeability (ω), and so on. They have a certain relationship with each other and change with the depth (h). Based on the measured data of 6 boreholes on the riverbed dam foundation of Ma’erdang hydropower station in Maqin area of Qinghai, the variation of the above indices with depth and the relationships among them were studied. The results show that the RQD at the same depth is quite different, but increases in linear ribbon with the increase of depth as a whole, and the linear relationship for the upper and lower limits can be expressed by formulas Q=0.488h+67.886 and Q=0.309h+2.319, respectively; the permeability and depth have a good correlation, and the permeability decreases as a power function curve with the increase of depth, which is ω=1 329.192h-1.599; the degree of fitting among RQD, permeability and depth is higher; the velocity of the longitudinal wave increases in linear ribbon with the increase of RQD, and the linear relationships for the upper and lower limits are V=40.493Q+3 612.9 and V=32.458Q+1 822.6, while the geometric mean of permeability tends to decrease and has a good correlation with the arithmetic mean of RQD, which is ω=6.378-3.708×10-7Q3.832.

参考文献/References:

-

相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2018-05-12;修回日期:2018-09-03
基金项目:国家自然科学基金项目(41772365)
作者简介:陈康达(1994-),男,江苏徐州人,工学硕士研究生,E-mail:429175074@qq.com。
通讯作者:宋彦辉(1968-),男,河北邢台人,教授,博士研究生导师,工学博士,E-mail:dcdgx30@chd.edu.cn。
更新日期/Last Update: 2018-12-06