Prediction of Water-gushing Volume of Super Long funnel on Shijiazhuang- Taiyuna Passenger Dedicated Railway Line With 2D and 3D Models

WANG Peng; HLTANG Tao; WANG Chuan-qi

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Journal of Railway Engineering Society ›› 2007, Vol. 24 ›› Issue (9) : 51-54.

Prediction of Water-gushing Volume of Super Long funnel on Shijiazhuang- Taiyuna Passenger Dedicated Railway Line With 2D and 3D Models

WANG Peng, HLTANG Tao，WANG Chuan-qi

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Abstract

Research purposes: Nowadays the professionally theoretical method is still common used for prediction of water-gushing volume of tunnel with low precision , so it is necessary to seek a new method of predicting the water- gushing volume of super long tunnel on Shijiazhuang-Taiyuna Passenger Dedicated Railway Line with computer technology for the purposes of directing the construction.

Research methods: With the integration of theoretical model with 2D and 3d mathematical models, rational setting the boundary conditions makes the mathematical models close to real conditions.

Research results : The predicted results obtained by 2D and 3D models with finite-element method are matching each other and very close to the observed data on site.

Research conclusions : This prediction method can direct the construction and provide the reference to the calculation of water-gushing volume of the tunnel in the similar areas. However, the value of water-gushing volume predicted with 3D model is smaller than that with 2D model because of simplifying classifcation of units, so the improvement of the program will be made in future.

Key words

2D model / 3D model / finite-element / water-gushing volume of tunnel

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WANG Peng, HLTANG Tao, WANG Chuan-qi. Prediction of Water-gushing Volume of Super Long funnel on Shijiazhuang- Taiyuna Passenger Dedicated Railway Line With 2D and 3D Models[J]. Journal of Railway Engineering Society, 2007, 24(9): 51-54