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斜体结构类型与地质灾害的关系
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摘要
岩土体是斜坡的重要物质组成,与地质灾害的形成关系密切,经调查,神木县境内的岩土体主要分为6个工程地质岩组,砂质泥岩夹砂岩碎屑岩、砂泥岩互层碎屑岩、泥岩组、多层土体、风成黄土单层土体、风成中细沙单层土体;这六种岩组构成了5种不同的斜坡体结构类型,进而引发不同的地质灾害,土岩双层结构和岩体单层结构多发生崩塌灾害,土粘土岩双层结构和土体单层结多发生崩塌和滑坡灾害,土岩多层结构多发生崩塌和地面塌陷灾害;根据不同的斜坡岩土体类型引发的地质灾害特点,提出相应的治理措施。本文研究斜坡岩土体结构类型与地质灾害的关联性,旨在研究陕北地区崩塌、滑坡、地面塌陷的形成机理,以期达到针对不同的岩土体类型实施不同的治理工程的目的,这对陕西省乃至全国正在实施的地质灾害详细调查项目有一定的指导意义。
The rock-mass is an important composition of the slope,and closely associated with the formation of geological hazards, After field investigation, the rock-mass is divided into six main engineering geological strata in Shenmu County, sandy mudstone folder sandstone detrital rock, sand shale interbed of clastic rock and mudstone, multi-layer soil, eolian loess layer in the soil, aeolian sand soil layer; These six kinds of petrofabric constitute five different types of slope structure,and causing different geological hazards. Soil-rock double layer structure and rock-mass single layer structure usually occur collapse disasters, soil clay rock double layer structure and soil- mass single layer structure often occur collapse and landslide, rock-soil multilayer structure tend to occur collapse and ground collapse; According to characteristics of the geological disasters caused by different on the types of slope rock mass, puts forward some corresponding control measures.This paper, studies the relationship between the structure type of slope rock and the geological disasters. The formation mechanism of collapse, landslide, and ground collapse in north of shaanxi, in order to achieve different types of rock and soil mass implement differernt regulation project. This research has a certain guiding significance to the detailed investigation of geological disasters taking place in shaanxi province and even the whole country.
引文
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