论文部分内容阅读
本文用三维有限元法计算并分析丹江口混凝土坝30至44坝段位移的变化规律。首先通过具有代表性测点位移的计算值与实测值相比较,得出它们变化规律是一致的,两者差值较小,从而论证了计算条件模拟的正确性;其次分析了各种荷载对坝体变位的影响,计算表明,温度荷载是影响坝体水平位移的最主要因素,尤其对转弯坝段位移的影响更为显著;最后,根据大坝可能出现的最不利荷载组合条件,计算了大坝可能出现的最大和最小位移,以利大坝安全监测。
In this paper, three-dimensional finite element method to calculate and analyze the Danjiangkou concrete dam 30 to 44 dam displacement changes. First of all, through the comparison of the calculated displacements with the measured displacements, it is concluded that the variation of the measured displacements is consistent and the difference between the two is small, which verifies the correctness of the simulation. Secondly, The calculation results show that the temperature load is the most important factor affecting the horizontal displacement of the dam, especially for the displacement of the turning dam. Finally, according to the most unfavorable load combination conditions of the dam, The dam may appear the maximum and minimum displacement, to facilitate dam safety monitoring.