中国岩溶
中國巖溶
중국암용
CARSOLOGICA SINICA
2014年
3期
288-293
,共6页
常宏%章昱%李景富%谭建民%韩会卿
常宏%章昱%李景富%譚建民%韓會卿
상굉%장욱%리경부%담건민%한회경
岩溶%地质灾害%鄂西%清江
巖溶%地質災害%鄂西%清江
암용%지질재해%악서%청강
karst%geological disaster%western Hubei Province%Qingjiang river basin
鄂西清江流域碳酸盐岩分布广泛,岩溶地质灾害较为发育。文章在清江流域11个县市地质灾害详细调查成果基础上,运用统计归纳和工程地质类比等方法,分析清江岩溶与地质灾害的关系表现在4个方面:岩溶水系统导致岩溶塌陷(及灾害链);溶蚀扩张和岩溶化诱发加剧滑坡和崩塌,溶蚀风化形成危岩(潜在不稳定斜坡);钙质胶结的存在加强了滑坡崩塌的稳定性;岩溶与地质灾害易混淆,以新塘石林为例强调二者之间需甄别。指出碳酸盐岩区地质灾害调查应加强岩溶孕灾地质背景研究;研究钙质胶结的分布规律与加固效果可应用于滑坡和崩塌防治。
鄂西清江流域碳痠鹽巖分佈廣汎,巖溶地質災害較為髮育。文章在清江流域11箇縣市地質災害詳細調查成果基礎上,運用統計歸納和工程地質類比等方法,分析清江巖溶與地質災害的關繫錶現在4箇方麵:巖溶水繫統導緻巖溶塌陷(及災害鏈);溶蝕擴張和巖溶化誘髮加劇滑坡和崩塌,溶蝕風化形成危巖(潛在不穩定斜坡);鈣質膠結的存在加彊瞭滑坡崩塌的穩定性;巖溶與地質災害易混淆,以新塘石林為例彊調二者之間需甄彆。指齣碳痠鹽巖區地質災害調查應加彊巖溶孕災地質揹景研究;研究鈣質膠結的分佈規律與加固效果可應用于滑坡和崩塌防治。
악서청강류역탄산염암분포엄범,암용지질재해교위발육。문장재청강류역11개현시지질재해상세조사성과기출상,운용통계귀납화공정지질류비등방법,분석청강암용여지질재해적관계표현재4개방면:암용수계통도치암용탑함(급재해련);용식확장화암용화유발가극활파화붕탑,용식풍화형성위암(잠재불은정사파);개질효결적존재가강료활파붕탑적은정성;암용여지질재해역혼효,이신당석림위례강조이자지간수견별。지출탄산염암구지질재해조사응가강암용잉재지질배경연구;연구개질효결적분포규률여가고효과가응용우활파화붕탑방치。
Carbonate rocks are widely distributed in the Qingjiang river basin in western Hubei Province. Karst geological disasters often take place in this area.Based on a survey of geological disaster in 1 1 coun-ties,the relationship between karst formation and geological disasters is analyzed and evaluated using statis-tical and analogical methods.The relationship is summarized in four main points,(1 )Karst cave systems may cause karst collapse and disaster chains.(2)Landslides or avalanches are induced by karstification and enhanced by fractures expansion under the karst dissolution process.Dangerous rocks or potentially unstable slopes are generally linked with karst dissolution and weathering.(3)It is indicated that calcareous cementa-tion among rocks can enhance the stability of landslides and avalanches.(4)For the case study in Xintang stone forest,karst phenomena and landslides were identified.It is proposed that it is necessary to investigate the karst background of disaster areas,and evaluate the impact of calcareous cementation on the stability of landslides and avalanches by studying its distribution and reinforcement effects.