花岗岩球状风化体分布特征及工程影响

摘要

花岗岩中发育球状风化体(风化孤石).特定地区风化孤石具有相似的分布规律.地表孤石集中分布,稳定性差,地下孤石具有相似的埋深和大小.孤石常以高位孤石、孤石集中发育区和基础下隐伏孤石三种形式对高速公路造成危害.针对各种危害形式提出不同的处治措施建议,经工程验证措施切实可行,为类似工程提供借鉴.%The spherical weathering bodies (weathering boulders) popular existed in the weathering granite and it's residual soil.The similar distribution characteristic is founded in specified areas of weathering boulders.The boulders exposed at the surface have a feature of flock together and have bad stabilities.The underground boulders have similar buried depths and sizes.The damages of the boulders have three types:the high boulders,the boulers flock together areas and the concealed boulders under the foundations.Treatment measures are put forward for different damages.The measures are feasible by using in the projects.The methods provide reference for similar projects.