以武汉某地铁车站土岩组合的狭长形超大深基坑为依托,结合现场工程测试,对支护结构支撑轴力和桩身位移进行了分析,总结了该类基坑支护结构变形与受力变化规律:由于基坑狭长型的特点,相对于基坑端头井部分,基坑标准段受荷载影响大,由于其地层为土岩组合地层,基坑的变形和轴力在上部土层部分均较大。并在此基础上对该类基坑支护结构的设计和施工提供了有用的建议。 Based on the long and narrow deep foundation pit of earth and rock in a metro station in Wuhan, combined with on-site engineering tests, the supporting axial force and pile displacement of the supporting structure are analyzed, and the deformation and acceptance of such supporting structures are summarized Due to the narrow and long type of foundation pit, the standard section of the foundation pit is greatly affected by the load due to the characteristic of the long and narrow foundation pit. Due to the combination of soil-rock assemblage, the deformation and axial force of the foundation pit are higher in the upper soil layer Some are larger. And on this basis, it provides some useful suggestions for the design and construction of such kind of foundation pit supporting structure.