摘要
为了确保废石场深埋排水隧道的稳定,排水隧道采用"钢筋砼衬砌+地基挖孔桩+地基夯实换填"方案,运用有限差分程序FLAC^(3D)模拟排水隧道在上覆废石体压载作用下的稳定。模拟结果表明,该隧道加固方案具有一定的可行性、合理性和安全保障性。而实际施工后该隧道目前运营使用很正常,废石堆排压覆90m高后隧道也很稳定。
To ensure the stability of deep-buried drainage tunnels in dump, the proposal combining reinforced concrete lining, digging-pile foundation and foundation replacing and consolidating is adopted and then the stability of drainage tunnel under overburden pressure is simulated by FLAC3D. Simulation results show that this proposal, to some extent, is feasible, rational and safety ensuring. When using this proposal in practical construction, the drainage tunnel operates well with good stability even under 90 m-high overlying waste bodies.
作者
李昊
陈琳琳
邢志华
LI Hao1,2, CHEN Linlin2, XING Zhihua3(1. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China; 2. Kunming Engineering ＆ Research Institute of Nonferrous Metallurgy Co. , Ltd. , Kunming 650051, China; 3. Yuxi Dahongshan Mining Co. , Ltd. , Yuxi Yunnan 653405, Chin)
出处
《有色金属（矿山部分）》
2018年第2期77-79,93,共4页
NONFERROUS METALS(Mining Section）
基金
国家自然科学基金项目(41362013)
关键词
排水隧道
地基
稳定性
加固
drainage tunnel
foundation
stability
reinforcement
