ISSN 1671-1092 CN 33-1260/TK

大坝与安全 ›› 2024 ›› Issue (3): 20-23,34.

• 设计研究 • 上一篇    下一篇

抽水蓄能电站地下厂房防渗排水方案数值模拟研究

杨海滔1,2 ,张志崇1,2 ,金 贤1,2 ,卢 斌3   

  1. 1.中水东北勘测设计研究有限责任公司,吉林 长春,130021;2.水利部寒区工程技术研究中 心,吉林 长春,130061;3.南京水利科学研究院,江苏 南京,210029
  • 出版日期:2024-06-10 发布日期:2024-08-09
  • 作者简介:杨海滔(1994—),男,辽宁抚顺人,工程师,主要 从事计算流体力学研究与水利水电工程设计工作。

Study on numerical simulation of seepage control and drainage scheme for underground powerhouse of pumped storage power station

YANG Haitao, ZHANG Zhichong, JIN Xian and LU Bin
  

  1. China Water Northeastern Investigation, Design and Research Co., Ltd.
  • Online:2024-06-10 Published:2024-08-09

摘要: 抽水蓄能电站地下厂房埋深较大,受排水廊道、隧洞充水、复杂地质条件、天然地下水等多种因素影响,常 形成复杂渗流场。基于FEFLOW软件建立包含输水隧洞、地下厂房、排水廊道、围岩、断层的三维渗流稳态模型,根 据模拟结果对初始防渗排水方案进行了优化,取消不必要的中平段排水廊道,并抬升下平段排水廊道,使其以自流 方式排出渗水。厂房区排水廊道和洞室群渗流量合计8 048.16 m3 /d,为地下厂房排水泵选型提供较大富余度。

关键词:

Abstract: The underground powerhouse of pumped storage power station is deeply buried, and is affected by many factors such as drainage gallery, water filling of tunnel, complex geological conditions and natural groundwater, so the complex seepage field is often formed. Based on the FEFLOW software, a three-dimensional steady state model of seepage including water transmission tunnel, underground powerhouse, drainage gallery, surrounding rock and fault is established. According to the simulation results, the initial seepage control and drainage scheme is optimized, eliminating unnecessary drainage galleries in the middle horizontal section and lifting drainage galleries in the lower horizontal section to discharge seepage water in the form of natural flow. The total seepage flow of drainage galleries and cavern group in the powerhouse area is 8 048.16 m3 /d, which provides a greater flexibility for the selection of drainage pumps for underground powerhouse.

Key words: pumped storage power station, underground powerhouse, three-dimensional seepage field, seepage control and drainage scheme

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