CAJ | 학술논문

明溪烽林场滑坡是福建省少见的缓倾角土质滑坡，滑坡位于丘陵小盆地的腹地，处于沉积碎屑岩与侵入岩接触带上，场地坡度较平缓，作为烽林场建设用地后，对场地进行了全面改造，在强降雨作用下诱发滑坡。后缘大量弃土堆载、前缘过度开挖为滑坡形成创造了良好的条件，接触带附近常年地下水排泄区沉积了厚度较大的有机质土隔水层，地下水具有承压性质，在强降雨作用下，后缘填土在自重及静水压力作用下失稳变形，并向中部及前缘产生强大的推力，中、前缘土体在推力及地下扬压力水顶托下，产生鼓胀变形，形成较明显的推移式滑坡特征。分析了滑坡变形特征，对滑坡成因及形成机理进行了探讨，在此基础上，提出科学合理的治理工程措施，治理工程完成近3年来，取得了良好的效果。
명계봉림장활파시복건성소견적완경각토질활파，활파위우구릉소분지적복지，처우침적쇄설암여침입암접촉대상，장지파도교평완，작위봉림장건설용지후，대장지진행료전면개조，재강강우작용하유발활파。후연대량기토퇴재、전연과도개알위활파형성창조료량호적조건，접촉대부근상년지하수배설구침적료후도교대적유궤질토격수층，지하수구유승압성질，재강강우작용하，후연전토재자중급정수압력작용하실은변형，병향중부급전연산생강대적추력，중、전연토체재추력급지하양압력수정탁하，산생고창변형，형성교명현적추이식활파특정。분석료활파변형특정，대활파성인급형성궤리진행료탐토，재차기출상，제출과학합리적치리공정조시，치리공정완성근3년래，취득료량호적효과。
Mingxi Fenglinchang landslide is a rare gently inclined soil landslide in Fujian Province. The landslide is located in a small basin hinterland and in the deposition of clastic rocks and intrusive contact zone. The site of the landslide has a gentler slope, and after a comprehensive transformation as the construction land for Fenglin farm, it is formed under the strong the action of rainfall. A large amount of waste heap load and over-excavation have created favorable conditions for the formation of the landslide near the contact zone. Perennial groundwater discharge area deposited thick organic soil aquiclude and because the groundwater is pressure-bearing, after strong rainfall, the filling deformed under self weight and instable static water pressure, and created a strong thrust to the middle and front. The soil in the middle and the front bulged and deformed under the thrust and the uplift pressure from the underground water, forming a more obvious lapsed landslide feature. This paper analyzes the characteristics of landslide deformation, and forming mechanism of landslides, and on this basis, puts forward scientific and rational measures of project management. It is proved that the projects have achieved good results in the past 3 years.