Mathematics statistic model of the main observation variables and horizontal displacement hybrid model of typical monolith of huangtankou concrete gravity dam are established . through model analysis and parameter inversion , taking into account of water level and temperature , deformation monitoring control index of typical monolith is determined by the improved method of probability . the primary contents are as follows : 1 建立了黄坛口混凝土重力坝主要观测量的数理统计模型和典型坝段水平位移混合模型等，通过对各数学模型的分析和参数反演，综合考虑水位温度采用改进小概率法拟定了典型坝段水平位移的监控指标，得到一些有益的结论，其主要内容如下： 1
Concrete gravity dam , which has many advantages including security , simplicity of design and construction , better applicability to terrain and geology condition and can easily solve difficulties caused by construction diversion and permanent flood discharge , is a dam type predominantly used in practical engineering presently . however , the designing principles used to control construction quantity and reliability of the gravity dam was mainly based on experiences 混凝土重力坝主要具有安全可靠、设计施工技术简单、对地形和地质条件的适应性较好、施工导流和永久性泻洪问题容易解决的优点，是目前在工程中采用较多的一种坝型，但是控制重力坝工程量和安全度的设计原则基本上仍然依赖于经验。
Three - dimension finite element floating mesh method is used to calculate the temperature field and thermal stress of 6aa roller compacted concrete gravity dam section and f6 fault concrete tuck in this paper . the basic theories adopted include heat conduction theory , elastic theory and corresponding finite element calculation equation 本文用三维有限元浮动网格法对6aa坝段及基础部位f6断层混凝土塞的施工过程进行温度场和温度应力仿真计算，计算的基本理论是热传导理论和弹性理论以及相应的有限元计算公式。
Till now , yunfeng concrete gravity dam has served for more than 30 years . according to some regulation , it is necessary to evaluate its security . based on its service condition , geology situation and load property , it is essential to make further analysis , so that more practical results can be got 云峰混凝土重力坝至今已运行三十余年，根据有关规定，需对大坝进行安全检查，根据大坝运行情况、地质情况和受力情况，有必要对大坝进行更深入细致的分析，得出更切合实际的结论。
Under the influences of random variabilities , during both construction period and operation period , the temperature field within a gravity dam body could be regarded as a random one . in this paper , stochastic finite element methods are suggested to deal with the random temperature field . by use of the suggested methods , the influences of random environmental and random hydration heat of concrete and the initial temperature of concrete as well as the thermal parameters of both concrete and rock foundation are all taken into account . according to a scheduled time table of construction , random temperature fields of a typical concrete gravity dam within both the construction period and the operation period are calculated by emulation the layer constructing of the dam . some useful conclusions are obtained from the computational results 由于施工期和运行期各种随机因素的影响，使重力坝温度场成为随机.本文综合考虑了环境温度(包括气温和库水温度) 、混凝土绝热温升、入仓温度以及混凝土和基岩的热学参数随机性的影响，基于随机有限元法，给出了重力坝随机温度场的计算方法，对一典型重力坝按给定的施工进度模拟分层浇筑施工过程，对施工期及运行期前期的随机温度场进行了计算，并得出了一些有益的结论
Abstract : in this paper chaos theory is used to study the predict ion methods of crack in concrete gravity dams . the equations of dynamics for crac k evolution are founded . with the reconstruction in phase space , the formulas of r elative dimension d2 , representing the dynamic characteristics of crack , are obta ined 文摘:在探讨用混沌与分形理论研究混凝土大坝裂缝演变机理的基础上，建立了裂缝演变的动力学方程组，通过相空间重构，得出显示裂缝动态特性的关联维数d2的表达式
