黄河黑山峡小观音坝址高地应力问题探讨  

A Study on High Stress of Xiaoguanyin Dam Site at Heishan Gorge on the Yellow River

作　　者：刘高[1] 谌文武[1] 韩文峰[1] 彭恒逸[2] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]湘潭市勘测设计院,湖南湘潭411100

出　　处：《兰州大学学报（自然科学版）》2001年第3期121-126,共6页Journal of Lanzhou University(Natural Sciences)

基　　金：国家自然科学基金 ( 4 9672 166)资助项目

摘　　要：从区域应力场、勘探平硐变形特征、岩体原位试验、弹性波速度测试、地应力量值和岩芯饼化诸方面讨论了小观音坝址区的地应力特征 ,论证了该坝址不存在高地应力问题 .钻孔 ZK136岩芯研究表明 ,它不满足岩芯饼化的条件也不具备饼状岩芯的特征 ,因此不能表征高地应力的特征 .Based on the characteristics of regional stress field, deformation of exploratory headings, in-situ mechanical test for rock mass, test of elastic wave velocity, value of earth stress and conditions of core discing, it is proved that there is no problem of high stress at Xiaoguanyin dam site of Heishan gorge on the upper reaches of the Yellow River. The core taken from the drill hole of ZK136 at the dam site is not disc-shaped,80 if does not meet the conditions of core discing and has no such beatuses as high earth stress.

关 键 词：地应力 饼状岩芯 岩芯饼化条件 高地应力判据 坝址 

分 类 号：TV64[水利工程—水利水电工程] P642[天文地球—工程地质学]