[提要]  利用远程通讯网络监测系统，对西安钟鼓楼广场地下工程基础筏板混凝土进行了全龄期水化热与温度应力的在线观测，研究分析了混凝土水化热对结构的影响。
[关键词]  大体积混凝土 监测系统 裂缝控制 基础筏板

The whole age of hydration-heat and thermal stress of mass concrete mattress of Xi' an Zhong-gulou
Square underground structure is on-line meassured with remote monitored control system, and the influence of hydration-heat of concrete on structure are carried out.
Keywords: mass concrete structure; monitored control system; crack control; mattress structure