一、前言近年来,天津市住宅建设以每年300万m~2的建设速度,迅速改善着居民的住宅条件。由于天津市地质条件较差,建六层楼房地耐力往往不能满足要求。常规处理方法是采用换填法,该做法工程量大,造价高、施工周期长,影响周围建筑物和污染环境。现提出一种粉煤灰石灰(简称二灰)混合料地基做法,并与常规处理方法进行技术经济对 I. INTRODUCTION In recent years, Tianjin’s housing construction has rapidly improved the residential conditions of residents by building at an annual rate of 3 million m2. Due to the poor geological conditions in Tianjin, the endurance of building six-storey buildings often cannot meet the requirements. The conventional treatment method is the replacement method, which has a large amount of work, high construction cost, long construction period, and affects the surrounding buildings and the polluted environment. A method for the foundation of fly ash lime (abbreviated as “dust”) is proposed and technical and economical