重点介绍深圳市白石岭大断面公路隧道，在全-强风化的花岗岩及第四系坡、残积土施工中遇到花岗岩微风化球体的不良地质条件。由于大气降水、围岩渗水致使围岩缺乏自稳性，造成隧道连续大规模坍方冒顶，并列举典型事例，介绍事故处理措施、过程和效果，对施工中的经验教训进行了归纳总结，提出一些看法和建议。

 Baishiling tunnel in Shenzhen is a highway tunnel with large crosssection. The tunnel goes through fullyheavily weathered granite and Quaternary alluvial and residual soils. Due to the slightlyweathered granite spheres encountered during construction and the lack of selfsupport ability of the surrounding rock mass caused by rainfall and water infiltration of the surrounding rock mass, largescale collapses and caveins occur consequently during the tunnel construction. In the paper, the typical collapse and cavein incidents are listed, the treatment countermeasures, treatment process and treatment effects are presented, the experience and lessons in the tunnel construction are summarized and some recommendations are made.