基于纳雍县中岭镇中岭危岩崩塌灾害成因的初步分析与防治

我国是一个地质灾害发育频繁的国家,滑坡、危岩崩塌、泥石流是地质灾害的主要类型,而我国的三峡库区、天山山区、横断山脉、云贵高原周边地区等是危岩的集中分布的地区。2004年12月3日,贵州省纳雍县中岭镇佐家营村岩脚发生了山体崩塌并诱发下部堆积体滑坡,造成44人死亡的重大地质灾害。事后通过现场调查发现,纳雍县中岭镇多是煤矿开采区,除佐家营外还存有四处坡体有明显变形迹象,即中岭、大垛口、小垛口、月亮湾。本文通过对贵州省纳雍县中岭镇危岩崩塌区的调查并结合一些实际情况,对危岩崩塌灾害的成因进行初步分析及对其治理措施提供依据。

Our country is a place in which geological hazards frequently happen, and landslide, collapse, debris flow is the main types of geological hazards. But the Tianshan Mountain, the Yunnan Guizhou Plateau, and the Hengduan Mountains are the concen-trated distribution areas of dangerous rock. In December 3, 2004 , a collapse happened which induced lower a ccumulation landslide and caused major geological disaster which killed 44 people in Yan Foot of Zuo Jia Ying of Zhong Ling town of Na Yong county in GuiZhou province. Afterwards, the field survey showed that the town is a coal area. In addition to Zuo Jia Ying , the ZhongLin ,the Big Crenel the Small Crenel, MoonBay also have the obvious evidence of deformation. In this paper, the investigation in the collapse region on the Zhong Ling town of Na Yong County of Gui Zhou province made a preliminary analysis of the causes of avalanche and the control measures to provide the basis.