新疆玉龙喀什水利枢纽工程拱坝体型设计

Arch Dam Shape Design of Yulong Kashi Hydro Project Engineering in Xinjiang

玉龙喀什水利枢纽工程拱坝体型设计通过采用浙江大学水工结构研究所编制的ADAO计算程序分析,确定坝顶长670m,坝体在平面上呈抛物线布置,抛物线方程为x2=by;拱冠梁顶厚度为12m,厚高比取大值为0.25,拱冠梁底60m,大半中心角为53.139°;拱冠梁各层厚度变化可视为由拱顶至拱底均匀变化,坝体上游面曲线为y=a0+a1z+a2z^2。计算得出的应力、位移数值及分布规律均符合国内外工程建设规范,拱坝体型设计合理。

The shape design of the dam for Yulong Kashi Hydro Project Engineering is analyzed by using ADAO calculation program compiled by the Institute of Hydraulic Structure of Zhejiang University,the length of the dam top is 670m,and the dam body is arranged in a parabolic plane with the parabolic equation x2=by;The top thickness of the crown cantilever is 12m,the maximum ratio of thickness to height is 0.25,the bottom of the crown cantilever is 60m,and the maximum half-center angle is 53.139°.The thickness variation of each layer of crown cantilever can be regarded as uniform variation from crown to arch bottom.The upstream surface curve of the dam is y=a 0 +a 1z+a 2z^2. The calculated values of stress and displacement and regularities of distribution are in accordance with the construction codes at home and abroad,and the shape design of arch dam is reasonable.