摘要
针对输电线路工程中节理裂隙发育的岩石地基,结合新疆节理裂隙岩体地基220~750k V输电线路工程荷载特点,根据以往理论研究与试验研究成果,选择软岩地基的全风化、强风化等不同风化程度,开展覆盖层厚度(2m-3m)的岩石复合基础上拔、水平、上拔+水平的现场真型试验,分析基础的荷载位移变化规律、钢筋的应力应变规律,监测上拔破坏岩体裂缝产生、扩展及贯通的全过程,研究岩石基础在不同覆盖层厚度条件下的承载特性。
In view of the transmission line engineering of rock foundation of the development of joint fissure combining xinjiang joint fractured rock mass foundation of 220-750 kv transmission line engineering load characteristics, based on previous theoretical research and experimental research,choose the full, strong weathering of soft rock foundation different weathering degree, such as coating thickness（2 m to 3 m） on the rocks, on the basis of composite level,＋levels of the scene really pull test,analysis of load displacement change rule,stress and strain law of reinforcement, pull damage on monitoring the whole process of rock cracks, expansion and well versed in,The bearing characteristics of rock foundation under different thickness conditions are studied.
出处
《中国建材科技》
2018年第2期71-72,共2页
China Building Materials Science & Technology
关键词
节理裂隙岩体
现场真型试验
荷载位移
承载特性
jointed fractured rock mass
field true type test
load displacement
bearing characteristic
