中国地质灾害与防治学报
中國地質災害與防治學報
중국지질재해여방치학보
THE CHINESE JOURNAL OF GEOLOGICAL HAZARD AND CONTROL
2010年
1期
65-68
,共4页
黄土塬%地裂缝%构造节理%湿陷特性%黄土潜蚀%陇东
黃土塬%地裂縫%構造節理%濕陷特性%黃土潛蝕%隴東
황토원%지렬봉%구조절리%습함특성%황토잠식%롱동
loess tableland%ground fissure%structural joint%loess erosion
对陇东黄土塬区地裂缝灾害的调查表明,在该区不断发生的地裂缝灾害实际上是在黄土构造节理的基础上,黄土潜蚀灾害的一种表现形式,是黄土塬区边缘一种特有的地质灾害现象,其形成除受黄土构造节理控制外,还受黄土本身的湿陷特性及塬面坡度、降水强度、地面硬化等条件制约.本文在灾害现状剖析的基础上,分析了黄土塬区地裂缝灾害的形成机理.
對隴東黃土塬區地裂縫災害的調查錶明,在該區不斷髮生的地裂縫災害實際上是在黃土構造節理的基礎上,黃土潛蝕災害的一種錶現形式,是黃土塬區邊緣一種特有的地質災害現象,其形成除受黃土構造節理控製外,還受黃土本身的濕陷特性及塬麵坡度、降水彊度、地麵硬化等條件製約.本文在災害現狀剖析的基礎上,分析瞭黃土塬區地裂縫災害的形成機理.
대롱동황토원구지렬봉재해적조사표명,재해구불단발생적지렬봉재해실제상시재황토구조절리적기출상,황토잠식재해적일충표현형식,시황토원구변연일충특유적지질재해현상,기형성제수황토구조절리공제외,환수황토본신적습함특성급원면파도、강수강도、지면경화등조건제약.본문재재해현상부석적기출상,분석료황토원구지렬봉재해적형성궤리.
Frequent ground fissures were a form of loess erosion hazard.They were formed on the loess structural joints.It was a special phenomenon of geological disaster in the loess tableland.Its formation was restricted by collapsible features,table-land slope degree,precipitation intensity and ground sclerosis conditions besides the loess structural joints.Formation mechanism of the disasters was analyzed based on their present status in this paper.
