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	1. Analysis of Hydro-Mechanical Interaction to Pervious Pressure Tunnel
	SU Kai,Wu Hegao
	Hydraulic Engineering 10 February 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Given internal water load as a kind of body load, an axisymmetric thick-walled cylinder model is built, in which the nonuniformity coefficients of reinforcement strain and concrete strain are introduced to compute the lining's equivalent permeability coefficient. The water-filled joint element model is developed to simulate the limited cooperation between reinforced concrete lining and surrounding rock. And an equivalent method is adopted to develop the computer program. The reinforcement stress and the surrounding rock stresses are calculated in pervious pressure tunnel with internal water exosmosis. The results show that the reinforcement stress obtained by the new method is near the observed data in the practice project. The fact that the reinforcement stress is at a lower stress level in the pervious pressure tunnel with high internal water load is verified.
	TO cite this article:SU Kai,Wu Hegao. Analysis of Hydro-Mechanical Interaction to Pervious Pressure Tunnel[OL].[10 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4585034


	2. Risky dam analysis and stability evaluation of reinforcement
	Dong Liang
	Hydraulic Engineering 17 March 2009
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Shortly after construction of the Shuanghe Arch Dam, substantial perforative cracks emerged, and these cracks would threaten the stabilization of the dam. A three dimensional model was established and the finite element analysis was employed to investigate the formation cause of the cracks. From the stress sensitive analysis in different types of loading case, the results show: The load combination condition of normal water level and temperature drop is most dangerous, and the temperature drop is the main external cause of crack growing. Four policies were applied to reinforce the arch dam: Thickening the dam body between 491.70~525.00m; consolidation grouting in downriver foundation; downriver drainage system; prestressed anchor in downriver slope. The finite element method is used to analyse the displacement, stress and the safety degree of abutment with comparing the reinforced dam to that without reinforcement. The results indicate that the reinforced arch dam is safe and stable.
	TO cite this article:Dong Liang. Risky dam analysis and stability evaluation of reinforcement[OL].[17 March 2009] http://en.paper.edu.cn/en_releasepaper/content/30379


	3. Application of Generalized Maximum Entropy Principle in Dam Safety Evaluation
	Gu Yanling,Yin Tao
	Hydraulic Engineering 11 April 2008
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	Abstract:The entropy theory is introduced into dam safety evaluation in this paper. The generalized maximum entropy principle which can integrate various methods to determine weight is applied to obtain the weight of multi-index in dam safety evaluation. The method maximizes Shannon entropy of all random variables simultaneously to obtain relatively reliable and accurate results. A project example is given to prove this method feasible. Thus this paper provides a new idea to determine multi-index weight for similar projects.
	TO cite this article:Gu Yanling,Yin Tao. Application of Generalized Maximum Entropy Principle in Dam Safety Evaluation [OL].[11 April 2008] http://en.paper.edu.cn/en_releasepaper/content/20356


	4. COMPARISON AND SELECTION OF ARCH DAM BUCKET IN SKI-JUMP ENERGY DISSIPATION
	Qi Yuantian,Huang Xibin
	Hydraulic Engineering 24 March 2006
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	Abstract:Based on the model test of flood discharge on surface sluice, the effects of continuous bucket and differential bucket on ski-jump energy dissipation were analyzed. The results indicated that nappe created by differential bucket is aerated and crashed better in the air, both in the cases of design flood and check flood. The effect of differential bucket on energy dissipation was better. The plunge pool, which absorbed remainder kinetic energy of overflow effectively, satisfied dissipation requirements both at design flood and check flood. The scouring and destroy action to downstream bed was decreased greatly by energy dissipation in plunge pool.
	TO cite this article:Qi Yuantian,Huang Xibin. COMPARISON AND SELECTION OF ARCH DAM BUCKET IN SKI-JUMP ENERGY DISSIPATION[OL].[24 March 2006] http://en.paper.edu.cn/en_releasepaper/content/5893

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