Analysis of Structural Construction Schemes for the Jinping Neutrino Detector
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摘要: 针对锦屏地下实验室的中微子探测器部分面临的施工空间小、探测器构成复杂以及构件数量多的问题,结合现场工程调研以及锦屏地下实验室的空间及施工条件确定施工步骤:不锈钢桶梁、柱等构件在工厂预制,现场吊装焊接;球形网壳采用内部一半龙骨先安装,外部一半分多片安装的施工方案;有机玻璃球分为5层单体,各层单体预先在大厅中由多个小块聚合成型,相邻2层单体在不锈钢桶内由下向上现场聚合安装。最后采用ABAQUS软件对该施工过程进行了模拟分析,验证了施工方案的可行性。Abstract: In order to solve the problems of small construction space, complex detector composition and large number of components faced by the neutrino detector part of the Jinping underground laboratory, the construction steps were determined based on the on-site engineering survey and the space and construction conditions of the Jinping underground laboratory. The beams and columns of the stainless steel tank were prefabricated in factories and installed on site by lifting and welding. The spherical reticulated shell adopted a scheme of installing the inner half as a whole and lifting the outer half in multiple pieces. The Plexiglass glass ball was divided into five layers of monomers, and each layer of monomers was pre-aggregated from multiple small pieces in the hall. Adjacent two layers of monomers were aggregated from bottom to top on-site in the stainless steel tank. The construction process was simulated by using the ABAQUS to analyze the feasibility of the construction scheme.
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