摘要
对红山窑水利枢纽工程中的风化红砂岩进行膨胀特性试验研究.试验表明,不同风化程度的红砂岩随着含水率的逐渐加大、风化程度的加深,其自由膨胀率、有侧限自由膨胀率和膨胀力都逐渐增大,其中,强风化砂岩的膨胀率与膨胀力随含水率的变化而改变的幅度最大,并与上部荷载的大小密切相关.
The expansive properties of the weathered red sandstone in Hongshanyao Hydro Project are studied by experiments. Some conclusions are drawn： with the increase of water content and degree of rock weathering, the free expansion ratio with or without lateral restraint and the expansive stress of sandstone gradually increase; the variations of expansion ratio and expansive stress of seriously weathered sandstone due to the change of water content are most significant, and they are closely related to the upper loads.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第5期557-560,共4页
Journal of Hohai University(Natural Sciences)
关键词
红砂岩
膨胀特性
含水率
风化程度
red sandstone
expansive properties
water content
degree of weathering
