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一、工程概况1.海口美兰国际机场位于海口市东南15km处的灵山镇,占地面积12.5平方公里,其道面结构上设计荷载为13747-400型飞机全重荷载(700t)。2.由我集团公司担负承建的强夯地基处理范围总面积为3.69万平方米。施工方法主要采用超挖40cm 土层后,松铺80cm 厚,30cm 粒径大的块(碎)石层,以2000KN·m 的单击夯击能点夯两遍,最后以单击夯击能500KN·m 满夯一遍。二、地质概况1.根据工程地质勘察报告,我局施工范围内地层地质主要为处于琼北新生代火山岩低丘台地的东北部。基本地貌单元属红土化玄武岩台地,区内地表以下约20m 深度范围内埋藏地层普遍具有“软——硬——软”的三元结构特征。
I. Project Overview 1. Haikou Meilan International Airport is located in Lingshan Town, 15 km southeast of Haikou City. It covers an area of 12.5 square kilometers and its design load on the pavement structure is a full load (700 tons) for the Type 13747-400 aircraft. 2. The total area of the hard-to-finish foundation handled by our group company is 36,900 square meters. The construction method is mainly used to excavate 40cm soil layer, loosely lay 80cm thick, 30cm large-size block (broken) stone layer, click twice with 2000KN·m click slam, and finally click slamming energy 500KN·m is full. II. Geological Overview 1. According to the engineering geological survey report, the strata geology within the scope of construction of the Bureau is mainly in the northeastern part of the Qiongbei Cenozoic volcanic rock low table platform. The basic geomorphic unit belongs to the red clay basalt mesa. Within the depth range of about 20m below the surface, buried strata generally have the characteristics of “soft-hard-soft” ternary structures.