基于节点虚流量法的某抽水蓄能电站地下厂房渗流场分析
首发时间:2009-03-03
摘要:利用求解有自由面渗流场的节点虚流量法,对某抽水蓄能电站施工期地下厂房渗流场分布进行三维有限元仿真模拟,着重研究施工期厂房区洞室的渗流特性,并对施工期厂房区渗控方案进行评价,为施工期的防渗排水工作提供指导。研究表明,施工期间排水设施尚未形成时,各已经开挖的洞室成为排水的主要边界;在保证各洞室的渗透水能及时排出的提前下,渗流场可以满足施工环境要求;顶排型排水幕排水效果并不明显。
关键词: 节点虚流量法 仿真模拟 排水幕 防渗排水设施 渗流场
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Analysis of Seepage field of Underground Powerhouse of A Pumped storage power station Based on node virtual flow method
Abstract:The finite element analysis of 3D simulation calculation for the Underground Powerhouse of a Pumped storage power station during construction period was performed based on node virtual flow method to solve seepage free surface, and the emphasis is placed on the study of the seepage properties of the powerhouse area’s caves and the evaluation of the scheme of seepage control in the powerhouse area during construction period, thus providing guidance for the work of anti-seepage and drainage during construction period. The study indicates that the excavated caves are the main drainage boundaries during construction period before drainage facilities are formed, and that under the premise of seepage water of caves being able to be discharged in time, the seepage field can satisfy the demand of construction environment, and the drainage curtain of overflowing type has no obvious effect.
Keywords: Node virtual flow method simulation calculation drainage curtain anti-seepage drainage facility seepage field
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No.2985932231912360****
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