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根据作者提出的观测反演分析概念,本文应用实测位移与二元理论相应值作比较,研究刘家峡重力坝横缝的结构联系作用.结果发现每一坝段均有各自的有效临界点,当库水位在坝段的有效临界点以上时,该坝段的实测位移小于二元理论相应值,而水位在该点以下时,情况恰相反.因此,横缝的结构联系作用可用有效临界点的位置来评价.本文讨论了确定各坝段有效临界点位置的方法,并用有效指数衡量全坝的空间作用.
According to the concept of observational inversion analysis proposed by the author, this paper compares the structural contact of Liujiaxia gravity dam with the corresponding value of binary theory by using measured displacements.It is found that each dam has its own effective critical point, When the water level is above the effective critical point of the dam section, the measured displacement of the dam section is less than the corresponding value of the binary theory, and the water level is just below the point, so the structural connection of the transverse joint can be determined by the location of the effective critical point This paper discusses the method of determining the effective critical point of each dam, and uses the effective index to measure the spatial effect of the whole dam.