下告铁矿主井井塔基础稳定性研究与设计

Stability Analysis and Design of the Main Shaft Tower Foundation at Xiagao Iron Mine

通过对下告铁矿主井区的工程地质调查、矿岩的单轴抗压和抗拉强度等的岩石力学室内试验,设计了主井塔楼的基础,并对桩基持力层安全厚度进行了抗冲切、抗剪切及抗弯分析验算,采用有限元模拟分析研究了桩-土-岩巷共同作用下桩基的稳定性,得出了桩基是稳定的结论。

Based on engineering geology survey, uniaxial compression and tensile indoor test of the rock and ore, the main shaft tower foundation of Xiaogao iron mine was designed. Then the die cutting, shear, bend strength about the safety thickness of the pile foundation supporting course were checked, and its stability on the comined action of pile-soil-rock were analysis by using finite element method. At last, we got the conclusion that the pile foundation was steady.