广东番禺市花岗岩残积土的工程地质特征及其应用

番禺市花岗岩风化残积土广泛发育 ,可分为地表残积土和地下残积土两类 ,土质多为砂质粘性土 ,其工程地质特征相差较大但有一定变化规律 ,地下残积土垂直分带明显。地表残积土可作为一般低层建筑的天然地基持力层 ,而且可作为低洼地带的回填土料 ;

Weathered eluvium of granites developes widely in Panyu city ,It can be divided into surface eluvium and underground eluvium. Most of them are sandy clay. Their geological features are greatly different but distribution of them follows certain patterns. The underground eluvium is distributed obviously in vertical zones .The surface eluvium can be used as natural foundation support layer of the low\|story building or as filling of hollows .If the underground eluvium is thick enough,the hard portion of it can be used as support layer of stake ends.