An Analytic Solution of Stress Distribution Around a Shallow Buried Hollow Cylinder Karst Cave in Limestone Strata  

作　　者：DU Luyi LI Wu LI Zhaojie LI Xiang DONG Jinshuang XIE Peng 

机构地区：[1]Hainan Agricultural Reclamation Construction Group Co.,Ltd.,Haikou 570226,China [2]College of Civil Engineering and Architecture,Hainan University,Haikou 570228,China

出　　处：《International Journal of Plant Engineering and Management》2025年第1期1-16,共16页国际设备工程与管理(英文版)

基　　金：supported by National Natural Science Foundation of China(42002293,52068019);Hainan Provincial Natural Science Foundation of China(520QN229,422RC599);Independent Innovation Fund Project of Tianjin University and Hainan University(KF2022⁃03);Scientific Research Startup Foundation of Hainan university(KYQD(2R)1969);Systematic Project of Key Laboratory of Geological Hazards on Three Gorges Reservoir Area(Three Gorges University),Ministry of Education(2020KDZ04).

摘　　要：The chief objective of the article is to learn the spatial characteristics of stress distribution around a shallow buried cylinder Karst cave in limestone strata.Firstly,taking into account the geometry of limestone formations,and the characteristics of Karst geomorphology in China,a spatial axialsymmetrical hollow model was established.Concurrently,combining available work and the concept of elasticity,the boundary conditions are determined.Subsequently,Love displacement method was introduced,the expressions of stress components were gained.The diagram characteristics of each stress component are summarized,which are affected by various influencing factors.Finally,in order to prove the rationality of the general solution,numerical simulation was carried out on the basis of practical engineering,and the maximum error is less than 5%.Thus,the analytical solution could represent the spatial characteristics of stress distribution around a shallow buried cylinder Karst cave in limestone strata.

关 键 词：cylinder Karst cave shallow buried spatial stress distribution of surrounding rock love displacement function three⁃dimensional explicit finite difference 

分 类 号：TU452[建筑科学—岩土工程]