针对富水条件下软破岩层深井筒快速掘进中存在的衬砌开裂、支护成本高等问题，以丘卡卢-佩吉铜金矿进风井-906~-1 158 m段为工程背景，采用理论计算、数值模拟、现场试验进行深井井筒支护参数研究。为合理且有效地抑制井筒变形、降低支护成本，结合工程实际建立了井筒模型，采用FLAC^3D有限差分软件，在考虑流固耦合情况下，分析不同支护参数下围岩的稳定性。结果表明：对于Ⅲ级围岩段，采用“锚网喷+钢纤维混凝土”支护方式，其支护参数为：锚杆直径22 mm，长度为2.3 m，喷浆厚度50 mm，间排距1 m×1 m，钢纤维混凝土厚度550 mm；对于局部存在的Ⅳ~Ⅴ围岩段，采用“锚网喷+泡沫板+钢纤维混凝土”支护，锚网喷与Ⅲ级围岩支护参数一致，泡沫板厚度为100 mm，钢纤维混凝土厚度600 mm。现场收敛测试结果表明，开挖412 h后井筒围岩的平均收敛速度为0.18~0.31 mm/d，符合进风井的施工要求。通过Ⅲ级、Ⅳ~Ⅴ围岩段的支护优化研究及现场实施，井筒施工效率较国内同类型深竖井提升约23.5%，研究成果可为高应力富水软破岩层井筒的支护设计提供指导。

In response to problems of rapid excavation of deep shafts, such as lining cracking and high support costs, based on the engineering background of -906 ~ -1 158 m section of an overseas copper and gold mine, the support parameters of shaft were studied by theoretical calculations, numerical simulations and field tests. In order to restrict deformation of the shaft and reduce the cost of support reasonably and effectively, a shaft model was established based on the engineering practice, the stability of surrounding rock with the different parameters was analyzed by FLAC^3D numerical software combined with fluid-structure interaction. The results demonstrate that for the class Ⅲ surrounding rock, "anchor net spraying + steel fiber concrete" support is adopted, and its parameters are as follows: bolt diameter 22 mm, length 2.3 m, shotcrete thickness 50 mm, row spacing 1 m ×1 m, steel fiber concrete thickness 550 mm. For the locally existing class Ⅳ ~ Ⅴ surrounding rock, "anchor net spray + foam board + steel fiber concrete" support was proposed, and the thickness of buffer layer foam board is 100 mm, and the thickness of steel fiber concrete is 600 mm. Field test results show that the average convergence rate of surrounding rock is 0.18 ~ 0.31 mm/d after 412 h excavation, which meets the requirements of air inlet shaft construction, and the construction efficiency is improved by about 23.5% compared with the domestic deep shaft. This work can provide a guidance for the support design of shaft in soft-fractured strata with water-rich.