摘要
作者通过对无锡市区浅层地基土的工程地质条件分析,指出了存在的主要工程地质问题。对无锡市区土体的主要持力层,尤其是作为高层建筑的持力层进行了分析评价,对城市建设规划提出了建议。
The soil mass below 50 m in Wuxi urban district can be divided into eight engineering geological beds from top to bottom in accordance with field investigation and drilling data.The lithological characteristics of soil mass variate from the artifical filling bed to alternative occur- ence of the soft soil,sticky soil and sandy soil,in wich the soft soil bed Ⅱ is called the first soft soil bed;the clay bed in middle-upper section of sticky soil bed Ⅲ is the first hard soil bed with high bearing capacity;the sandy soil bed Ⅳ is sandy bed A;the clay bed in middle- upper section of sticky soil bed Ⅴ is the second hard soil bed with low compressibility and high strenght,favourable to a pillar foundation bearing course of sky building.Three regions of natural ground soil in urban district can be determined as the good,medium and bad regi- ons and their(R)values are respectively 25-30,20-25 and 15-20 t/m^2 based on the calculation and contrast to the bearing capacity. The analysis on the distribution law and properties of natural ground soil shows that the distribution section of natural ground soil have good engineering conditions,for example,sout- thern Wuxi urban district can be precedently act as a bearing course of sky building.The engineering geological bed suitable for the pillar foundation bearing course is the sandy bed A and second hard soil bed.
出处
《江苏地质》
1990年第4期33-36,共4页
Jiangsu Geology
