断层岩岩体承载力和变形特性研究

对断层岩工程地质性质的深入研究、进行正确的工程地质评价具有十分重要的现实意义和经济价值。以青岛环球金融中心为例,结合详细勘察资料,查明基底的岩性分布及物理力学性质,为地基基础设计提供相关参数,提出合理的基础设计方案建议。通过平板载荷试验实测了工程中断层泥、糜棱岩、碎裂岩的承载力及变形指标,可知基底处岩性复杂,承载力及变形模量差异较大,建议采用筏板基础,以碎裂岩及碎裂岩分布区作为天然地基基础持力层。

Study on bearing capacity and deformation characteristics of fault rock mass

It is of great practical significance and economic value to conduct in-depth research on the engineering geological properties of fault rock and carry out correct engineering geological evaluation. Taking Qingdao Global Financial Center as an example, this paper combines detailed survey data to find out the lithological distribution and physical and mechanical properties of the basement, provide relevant parameters for foundation design, and propose reasonable basic design proposals. Through the plate load test, the bearing capacity and deformation index of the engineered mud, mylonite and fractured rock were measured. It is known that the lithology at the base is complex, and the bearing capacity and deformation modulus are different. It is recommended to use the raft foundation to break The fractured rock and the fractured rock act as the base layer of the natural foundation.