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在水利水电工程实践中,经常遇到缓倾角结构面,它们往往构成极为严重的工程地质问题.所谓缓倾角结构面,是一广义术语,它至少包括平缓岩层、缓倾角断裂、缓倾角软弱夹层、岩浆岩岩体中的缓倾角节理,以及岩体卸荷的平缓裂隙等.它们的成因不同,结构面特征各异,对工程建设的影响亦不尽相同,其中以缓倾角断裂和缓倾角软弱夹层影响最甚.本文旨在讨论缓倾角断裂的成生机制,基本特征,以及合理的勘测研究方法等问题.
In the practice of water conservancy and hydropower engineering, the surface of gentle dip angle is often encountered, and they often constitute very serious engineering geology problems. The so-called gentle dip angle is a broad term that includes at least the gentle rock, the gentle dip fracture, the gentle dip weak interlayer , The gentle dip joints in magmatic rock mass, and the gentle cracks unloading in rock mass, etc. Their causes are different, the structural surface features are different, and their influence on engineering construction are also different, among which the weak dip and weak dip Mezzanine has the most influence.This paper aims to discuss the formation mechanism, the basic characteristics and the reasonable survey research methods of the gentle dip fracture.