广州西北部上古生界岩溶特征及对工程建设的影响

THE CHARACTERISTIC OF THE EARILY PALEOZOIC ERATHEM KARST IN NORTHWEST OF GUANGZHOU AND TO THE INFLUENCE OF ENGINEERING DEVELOPMENTS

摘要: 广州西北部上古生界的岩溶发育在P1w、P1q、C2+3ht及C1ds等4套地层组中,其岩溶的类型、规模和赋存形式主要受岩性、层厚、构造位置与地下水活动等因素控制。因不同地层分布区的岩溶特征明显不同,因此,本文对工程建设的适宜性和基础类型选择进行了评价,以期对该地区的工程建设和勘察工作能起到参考作用。

Abstract: In northwest of Guangzhou, Karst is extensive growth in four sets of geologic stratas of the earily Paleozoic Erathem,such as P1w、P1q、C2+3ht and C1ds. The type of Karst,the scale of Karst and the form of Karst in lock is primarily with the character of rock, lock thick, geologic structure position and groundwater movable etc. The distribute of karst is difference because of the different of geologic strata.Therefore, in this paper,the authors proceeded the evaluation to the feat of engineering developments and the choice of foundation type, and hope that the suggestion could be propitious to the engineering developments and geotechnical investigating.