辽宁工程技术大学学报（自然科学版）2024，Vol.43Issue(3)：322-332,11.DOI:10.11956/j.issn.1008-0562.20230144
矿区采动区框架桥紧邻有限空间土体侧土压力试验研究
Experimental investigation of lateral earth pressure of finite soils adjacent to frame bridges in mining areas
摘要
Abstract
In this study,non-limit earth pressure tests were conducted on sandy soil to investigate the distribution of lateral earth pressure adjacent to the sidewalls of a framework bridge in mining areas,using the rotation about the wall base(RB mode)and focusing on finite-width soil bodies.These tests revealed that under the RB mode,lateral earth pressure of the loading wall and the passive compression wall is convex curve distribution,and both increase first and then decrease with the increase of the depth of the wall.Additionally,at any given burial depth,the lateral earth pressures and their resultant forces increase with relative squeezing displacement.The three-dimensional distributions of these pressures form convex surfaces,exhibiting regional variations where maximum pressures occur.Importantly,under comparable conditions of squeezing displacement,the resultant lateral earth pressure on the loaded wall not only exceeds that on the compressed wall but also manifests at a relatively elevated point of action.关键词
采动区/框架桥/有限土体/RB模式/被动土压力Key words
mining area/frame bridge/finite soil/RB mode/passive earth pressure分类
矿业与冶金引用本文复制引用
窦国涛,张安静,张明飞,于文杰,王澳波,李梓源..矿区采动区框架桥紧邻有限空间土体侧土压力试验研究[J].辽宁工程技术大学学报（自然科学版）,2024,43(3):322-332,11.基金项目
国家自然科学基金项目(41902266) （41902266）
河南省科技攻关项目(212102310967 （）
222102320468) （）
