两河口水电站右坝肩边坡的氡异常特征  

RADON ANOMALY IN THE RIGHT DAM-ABUTMENT SLOPE AT LIANGHEKOU HYDROPOWER STATION

作　　者：贾留杰[1] 沈军辉[2] 章志锋[2] 顾涛[2] 

机构地区：[1]四川省交通厅交通勘察设计研究院,成都610017 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059

出　　处：《地质灾害与环境保护》2011年第2期107-110,共4页Journal of Geological Hazards and Environment Preservation

摘　　要：通过对岩体的氡气测试,得到不同高程氡气脉冲值的硐深变化曲线,分析岩体卸荷强度和方式与其氡异常的相关性。岩体卸荷强度愈高,高氡异常值越高,异常深度范围越大,异常特征越明显。边坡集中卸荷拉裂部位、断层及错动带高氡异常,但边坡深部某些顺层断层或错动带异常特征不明显。结果显示卸荷强度和方式与氡气异常特征密切相关。Radon gas tests are taken on the rock masses in the right dam-abutment slope at Lianghekou Hydropower Station.Based on these tests,this article draws curves of radon impulse value to depth of each adit at different elevations and analyzes the correlation of unloading strength and unloading way with radon anomaly.The results reveal that,with higher strength,radon becomes more anomalous,and the anomaly extends deeper and wider.Radon is highly anomalous at the tension fractures of concentrated unloading,faults and dislocation bands while it is not distinct deep inside the slope.

关 键 词：两河口水电站 边坡岩体 卸荷强度 氡异常 

分 类 号：X830.7[环境科学与工程—环境工程]