摘要
为推广岩石锚杆基础在山区的运用,推动山区基础施工机械化水平的发展,本文结合特高压输电线路荷载大、沿线山区地形比例高、山区地形坡度陡、覆盖层厚等特点,比较了岩石锚杆基础在不同山区场地条件下的运用和造价,并与相同设计条件下采用挖孔基础的造价进行了对比分析。得出相同条件下锚杆基础的工程造价高于挖孔基础,覆盖层厚度对锚杆基础造价的增加影响显著。综合考虑水土保持要求、塔基稳定性和经济效益,建议尽量避免在需要降低基面的情况下采用岩石锚杆基础。
For promoting the application of rock bolt foundation in mountainous areas and promoting the development of mechanization level of foundation construction in mountainous areas,this paper compares the application and cost of rock bolt foundation in different mountainous areas based on the characteristics of UHV transmission line such as large load,high proportion of mountainous terrain,steep slope of mountainous terrain and thick overburden.Compared with the cost of excavated foundation under the same design condition,the cost of excavated foundation is analyzed.It is concluded that the engineering cost of anchor foundation is higher than that of excavated foundation under the same conditions,and the overburden thickness has a significant effect on the increase in the anchor foundation cost.Considering the requirement of water and soil conservation,stability of foundation and economic benefit,avoiding the use of rock bolt foundation is suggested when the foundation area needs to be excavated lower.
作者
薛正元
余亮
杨明
龙海波
杨云
朱亚鹏
XUE Zhengyuan;YU Liang;YANG Ming;LONG Haibo;YANG Yun;ZHU Yapeng(Jiangsu Power Design Institute Co.,Ltd.,China Energy Engineering Group,Nanjing 211102,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2022年第S01期142-147,共6页
Engineering Journal of Wuhan University
关键词
输电线路
杆塔基础
岩石锚杆
山区
transmission line
tower foundation
rock bolt
mountain area
