四川红层分布及工程环境特征研究

四川是我国西南地区红层分布极为广泛的省份之一．红层主要分布在四川盆地及盆地边缘地区。总面积约16.5万km^2。通过对四川红层形成时代、地表出露情况、地形地貌、地质构造等特征的研究，提出将四川红层划分为4个大区，即盆北西南区、盆中区、盆东区和攀西区，同时进一步将盆北西南区细分为盆北小区、盆西小区和盆南小区，重点研究了各红层分区的工程环境特征。

A Study on Distribution of Sichuan Red Beds and Engineering Environment Characteristics

Sichuan is one of the provinces over which the red beds distribute extensively in the southwest region of China. The red beds primarily distribute over Sichuan basin and its borders, the total area is about 16.5 ten thousand square kilometers. According to the era of red beds, the cause of formation of red beds, the outcrop characteristic, the geologic structure characteristic, the geomorphic characteristic etc. Sichuan red beds is divided into four big areas, namely, the southwest area of basin north, the inside area of basin, the east area of basin and the Panxi area. At the same time the southwest area of basin north is further subdivided into three small areas, namely, north small area, west small area and south small area. Engineering environment characteristic of each red bed area is systematically expatiated, analyzed and studied.