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本文着重介绍了某项援外工程,地质勘测由国外承包,由于所采用的钻探机具和手段不当,在所提供的勘测资料中,对强风化云母片岩这一层判断很含糊,有些钻孔竟将它描述为砂层,而地基容许承载力只提供为1.5公斤/厘米~2,国内搞扩初设计时,原基础方案拟采用灌注桩,但在对设计进行会审时,根据国内的工程实
This article focuses on the introduction of a foreign aid project. The geological survey was contracted by foreign companies. Due to the improper use of drilling equipment and measures, in the provided survey data, the judgment of strong weathered mica schist is very vague, and some boreholes will It is described as a sand layer, and the permissible bearing capacity of the foundation is only provided for 1.5 kg/cm~2. When the initial design for expansion is carried out in China, the original foundation scheme is to adopt a cast-in-place pile. However, when the design is examined, it is based on domestic engineering practice.