岩土力学2011，Vol.32Issue(8)：2359-2364,6.
塔克拉玛干沙漠输电线塔装配式基础试验研究
Experimental study of assembly foundation for transmission line tower in Taklimakan desert
乾增珍 1鲁先龙 1丁士君2
作者信息
- 1. 中国地质大学(北京)工程技术学院,北京100083
- 2. 中国电力科学研究院输变电工程力学研究所,北京100192
- 折叠
摘要
Abstract
In order to obtain the performance of assembly foundations composed by the concrete footing slab and steel angle column, which are used for the transmission line engineering in Taklimakan desert, the four in-site full-scale of two sizes tests on the bearing capacity of assembly foundations combined uplift with horizontal loadings are carried out. The curves of load-displacement both of footing slab and foundation top plane, and the soil pressure on the footing slab are all obtained. For the foundation top plane, combined the uplift with horizontal loadings, the curve of uplift loading-displacement develops slowly; and the curve of horizontal loading-displacement increases linearly. The anti -overturning bearing capacity of assembly foundation is weak because of light dead weight of the steel support frame and the loose property of aeolian sand. The assembly foundation composed by concrete footing slab and steel angle column has a good property of coordinated performance. Influence of horizontal loading on bearing capacity of assembly foundation is obvious. According to the test data of ultimate uplift bearing capacity, the average factional resistance of aeolian sand is 2.6 kPa, which is calculated by mechanical model of prismatic fracture plane.关键词
塔克拉玛干沙漠/装配式基础/输电线路基础/风积沙/上拔承载力Key words
Taklimakan desert/ assembly foundation/ transmission line foundation/ aeolian sand/ uplift bearing capacity分类
建筑与水利引用本文复制引用
乾增珍,鲁先龙,丁士君..塔克拉玛干沙漠输电线塔装配式基础试验研究[J].岩土力学,2011,32(8):2359-2364,6.
