强风化闪长岩层的桩基勘察实录

Case history of pile investigation at strongly weathered diorite sites

本文介绍了南京华飞彩色显像管工程场地通过三个阶段的勘察,在查明基岩埋藏深度和风化层分带的基础上,提出了闪长岩风化层的强度有随深度提高的规律,以及经试桩验证后的沉桩控制标准等。

This paper introduces the three stages of engineering site investigations of Huafei colour kinescope manufactory at Nanjing city.The bedrock depth and weathering zoning have been fully investigated.0n this basis,the 1aw of the increasing strength with depth of the diorite weathering layers and the pile-sinking control regulations approved by test pile are presented.