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A Simulation Method of Drainage Hole Curtain in Underground Powerhouse of Hydropower Station

A technology of underground workshops and simulation methods, applied in 3D modeling, data processing applications, instruments, etc., can solve problems such as time-consuming and high computer performance requirements

Active Publication Date: 2019-08-23
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the drainage hole curtain range is large and the number of drainage holes is large, the modeling and calculation process of the drainage substructure method will consume a lot of time and require high computer performance.

Method used

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  • A Simulation Method of Drainage Hole Curtain in Underground Powerhouse of Hydropower Station
  • A Simulation Method of Drainage Hole Curtain in Underground Powerhouse of Hydropower Station
  • A Simulation Method of Drainage Hole Curtain in Underground Powerhouse of Hydropower Station

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] A method for simulating the drainage hole curtain of an underground powerhouse of a hydropower station according to the present invention is specifically implemented according to the following steps:

[0038] Step 1. Establish stratum entity 1 in the project area according to the hydrogeological data, and determine the permeability coefficient and groundwater level of different strata;

[0039] Stratigraphic entity 1 is a three-dimensional "Body" entity established through the "Parasolid" modeling method of the ADINA platform.

[0040] In step 1, stratum entity 1 is divided into overburden layer, strongly weathered layer, weakly weathered layer and fresh rock layer from top to bottom.

[0041] As a finite element calculation software, ADINA has powerful pre-processing and post-processing capabilities. ADINA itself has two modeling me...

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Abstract

The invention discloses a method for simulating a drainage hole curtain of an underground workshop of a hydropower station. The method comprises the steps of firstly determining an outer contour entity of the drainage hole curtain after a stratum entity is built; simplifying a drainage hole into a line entity; reserving a drainage hole trace on the surface of the outer contour entity of the drainage hole curtain and the surface of the stratum entity through Boolean operation; obtaining a computing node on the drainage hole trace during grid division; and applying boundary conditions to a drainage hole node according to different requirements. The method can accurately simulate the influence of the drainage hole curtain in a three-dimensional model on a seepage field of an underground workshop region of the hydropower station, is simple in operation and shortens the calculation time.

Description

technical field [0001] The invention belongs to the technical field of safety of underground powerhouses of hydropower engineering, and in particular relates to a method for simulating drainage hole curtains of underground powerhouses of hydropower stations. Background technique [0002] With the rapid development of my country's social economy, high-efficiency and clean energy, mainly hydropower, needs to be further developed. In order to increase the generating head, most of the power plants are located underground. In order to ensure the normal operation of the generator set, it is necessary to ensure that the generator floor of the plant building is located above the groundwater level during the construction and operation periods. When anti-seepage and drainage measures are not taken, the entire plant area is often located below the original groundwater level, and the groundwater level will further rise after the reservoir is impounded. At present, the most effective d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/20G06T17/05G06Q50/06
Inventor 许增光曹成柴军瑞温立峰钱武文覃源
Owner XIAN UNIV OF TECH
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