摘要
红层是由砂岩、砾岩、页岩和泥质岩等碎屑岩构成的外表呈红色的沉积岩,广泛分布于我国东南、西南、西北地区。由于红层存在力学性能差、易风化、水理性差、易崩解等特点,其路用性能较差,严重威胁红层地区基础工程的长期稳定性。通过文献调研归纳总结红层的水理力学特性,从吸水膨胀性、崩解性、软化性和渗透性方面介绍红层水理特性,通过强度和变形分析总结红层静力学特征,从动力学参数、动强度和累积变形等方面归纳红层动力学研究进展,并对发展趋势进行展望。
The red bed is a red sedimentary rock composed of sandstone,conglomerate,shale and argillaceous rocks,which iswidely distributed in the southeastern,southwestern,and northwestern China.Due to its characteristics of poor stress,easy weathering,poor water rationality and easy disintegration,its road performance is poor,which seriously threatens the long-term stability of foundation engineering in red bed area.The water physical and mechanical properties of red beds are summarized through literature research.The water physical properties of red beds are introduced from the aspects of water swelling,disintegration,softening and permeability.The static characteristics of red beds are summarized through strength and deformation analysis.The research progress of red bed dynamics is summarized from the aspects of dynamic parameters,dynamic strength and cumulative deformation,and the developmenttrend is prospected.
作者
甘季中
张轩
陈敦
穆彦虎
毛云程
张微
张坤
宁龙青
Gan Jizhong;Zhang Xuan;Chen Dun;Mu Yanhu;Mao Yuncheng;Zhang Wei;Zhang Kun;Ning Longqing(School of Civil Engineering,Northwest MinZu University,Lanzhou 730030,Gansu,China;Key Laboratory of Green Engineer-ing Materials and Low-carbon Construction,Gansu Province,Lanzhou 730124,Gansu,China;Key Laboratory of Cryospheric Sci-ence and Frozen Soil Engineering,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou730000,Gansu,China;School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China)
出处
《岩土工程技术》
2025年第4期475-486,共12页
Geotechnical Engineering Technique
基金
甘肃省重点研发计划-工业类项目资助(25YFGA006,23YFGA0018)
甘肃省交通运输厅科技项目(2022-54)
西北民族大学引进人才科研项(xbmuyjrc2023018)
西北民族大学2024年度研究生“创新之星”项目(31920240127-44)。
关键词
红层
水理特性
强度特性
变形特性
动力学
red beds
water principle characteristic
strength characteristics
deformation characteristic
dynamics
