强风化岩地区岩石锚杆基础抗拔承载力研究
Study on Uplift Bearing Capacity of Rock Anchor Foundation in Heavily Weathered Rock Area
贾及汉 1柳劲京 2李杰 2季均都 2罗瑾煊 3刘岩 4吕忠华 4孙清2
作者信息
- 1. 国网辽宁省电力有限公司,沈阳 112400
- 2. 西安交通大学人居环境与建筑工程学院,西安 710049
- 3. 电力规划总院有限公司,北京 100120
- 4. 国网辽宁省电力有限公司经济技术研究院,沈阳 112400
- 折叠
摘要
采用数值研究方法,研究了岩石锚杆基础在承受上拔荷载下的传力机理和内力分配大小,对锚杆基础受到上拔荷载的受力过程进行分析,对比钢筋、混凝土和岩石的轴力大小,进一步改变锚杆直径、锚杆长度、锚固体直径、岩石力学参数的取值,分析岩石锚杆基础承载力的变化规律.通过以上研究,为岩石锚杆基础在强风化岩地区输电线路杆塔基础中的设计与应用提供依据和参考.
Abstract
A numerical research method was adopted to study the force transfer mechanism and internal force distribu-tion of rock bolt foundation under uplift load.The stress process of rock bolt foundation under uplift load was analyzed,the axial force of reinforcement bar,concrete and rock was compared,and further the values of bolt diameter,bolt length,anchor solid diameter and rock mechanical parameters were changed.The variation of bearing capacity of rock anchor foundation was analyzed.Through the research,the basis and reference were provided for the design and application of rock anchor foundation in the power transmission line tower foundation in the strongly weathered rock area.
关键词
岩石锚杆基础/强风化岩/传力机理/锚杆尺寸/锚固体直径/岩石力学参数Key words
rock bolt foundation/strongly weathered rock/force transfer mechanism/bolt size/anchor solid diameter/rock mechanics parameter引用本文复制引用
基金项目
国家电网辽宁省科技创新项目(1522HL1900ZF)
出版年
2024
NETL
NSTL
万方数据