混凝土高坝施工期温度与应力控制决策支持系统

本文建立了混凝土高坝施工期温度与应力控制决策支持系统，该系统包括大坝温度场仿真子系统、大坝温度场反分析子系统、大坝温度徐变应力仿真分析子系统、大坝温度场和应力场预报子系统以及大坝温度控制决策支持子系统。该系统可在大坝施工过程中根据实际施工条件和温控措施，对全坝各坝块进行全过程仿真分析，及时了解大坝各坝块的温度与应力状态以及各种温控措施的实际效果，并可预报竣工后运用期的温度和应力状态。本系统已成功应用于周公宅拱坝，对混凝土坝在设计、施工和运行期的安全评估发挥了重要作用。

Decision making support system for temperature and stress control of high concrete dams in construction period

A decision making support system for temperature and stress control of high concrete dams is established. The system consists of five subsystems: subsystem for simulating temperature field, subsystem for back analysis of temperature field, subsystem for simulating temperature stress and creep stress, subsystem for forecasting of temperature field and stress field and subsystem for decision making support of temperature control. The system can be used to simulate the situation of every dam block in the process of construction according to the real conditions of construction and temperature control measures. It also can be used to forecast the temperature and stress state of the dam in the period of operation after the completion. The new developed system has been successfully applied to the construction of Zhougongzhai Arch Dam, which is 126.5m high, and played important role in safety assessment of the project both in period of construction and operation.