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1 引言广州华侨糖厂热电厂扩建工程于1993年4月开工建设,在原有3台汽轮发电机组的基础上新增一台1.2万kw的凝汽式汽轮发电机组。扩建的发电厂房紧邻旧发电厂房,为2层排架式工业厂房,长27m,宽18.5m与原有厂房相同,高度20m。主要建筑物有汽轮机机座、出线室、控制室、高压配电室、变压器室、射水箱及事故油池等,其中的核心部分为汽机间及汽轮机座,该部分结构复杂,动力荷载大,对地基基础的要求较高。因此该工程设计中汽机间及汽轮机座基础的设计是一个重要部分。2 工程地质概况新建厂房位于广州市区西部珠江边上,根据地质钻探揭露资料,该区是由第四系和石炭
1 Introduction Guangzhou Overseas Chinese Sugar Plant Thermal Power Plant expansion project started construction in April 1993 and added a 12,000 kw condensing steam turbine generator set on the basis of the original three steam turbine generator sets. Expansion of the power plant close to the old power plant room, two-tier rack-type industrial plant, length 27m, width 18.5m same as the original plant, height 20m. The main buildings include steam turbine base, outlet room, control room, high-voltage power distribution room, transformer room, water tank and accident oil pool. The core parts are steam turbine and steam turbine seat. The structure of this part is complex with large dynamic load, On the foundation of the higher requirements. Therefore, the design of the engine room and steam turbine seat foundation is an important part of the project design. 2 Engineering Geology Overview The new plant is located in Guangzhou City, the western edge of the Pearl River, according to geological drilling to expose the information, the area is Quaternary and carbon