摘要
圆锥动力触探试验是一项实验设备相对简单,操作方便,适应土类较广,并且可以连续贯入的原位试验方法.它对地基土的力学分层,以及评价地基土的均匀性和物理性质等方面具有一定的功效。笔者以贵州某变电站岩土工程勘察为例,通过重型圆锥动力触探实验记录锤击数,通过杆长与地下水位校正,确定土层的承载力,并根据确定的地基土力学分层,绘制勘察报告的工程地质剖面图。同时本文还讲述了试验的基本机理及施工要点,并提出注意事项。
The dynamic cone penetration test is a relatively simple laboratory equipment,easy to adapt to a wide soil type,and can be continuous in situ penetration test method.Its mechanical foundation soil layer,as well as evaluating the uniformity of soil physical properties and has some effect.The author of a substation in Guizhou geotechnical engineering investigation,for example,through the heavy dynamic penetration cone number of experimental records hammering through the rod length and the water table correction,to determine the bearing capacity of soil and soil under the foundation to determine the mechanical layering,drawing engineering geological investigation report of the profile.This article also describes the test while the basic mechanism and construction points and made notes.
出处
《地下水》
2011年第2期169-172,共4页
Ground water
关键词
重型圆锥动力触探
试验机理
承载力特征值
heavy dynamic penetration cone
test mechanism
bearing capacity value
