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Wu X.Y.,IWHR | Xie X.M.,IWHR | Wei C.J.,IWHR | Zhu Z.H.,Beijing IWHR Technology Co.
Advanced Materials Research | Year: 2014

In order to grasp the status of water resources argumentation for planning in China and improve the level of the argumentation, the water resources argumentation for planning cases, the water resources planning cases and the water resources argumentation for project cases were analyzed. The ideas, contents and technical methods of water resources argumentation for planning were still under the influence of the water resources argumentation for project. Our results suggest that legislation, argumentation bases, technical requirements and pilot study should be completed further according to the planning characters. © (2014) Trans Tech Publications, Switzerland.


Zhang S.,North China University of Water Conservancy and Electric Power | Wen J.,Beijing IWHR Technology Company
Applied Mechanics and Materials | Year: 2012

In view of the existing permeable sand layer and the leakage risk which threaten the earth dam foundation of Chulou reservoir, the high pressure jet grouting measure was applied to block leakage passage to solving the leakage problems of earth dam foundation. This paper mainly describes the high pressure jet grouting impermeable wall construction, including construction equipment, technological process, construction parameters and method, and wall quality detection. The test results show that the indexes such as wall depth, continuity, compressive strength, permeability coefficient meet the design requirements. The quality of impermeable wall is accepted. © (2012) Trans Tech Publications, Switzerland.


Xiao R.,China Agricultural University | Zhu W.,Beijing IWHR Technology Co. | Yang W.,China Agricultural University | Liu J.,Chongqing Three Gorges University | Wang F.,China Agricultural University
Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering | Year: 2013

To carry out stress characteristics analysis based on two-way FSI, the Navier-Stokes equations and Continuity equation used were transferred to arbitrary Lagrangian-Eulerian (ALE) coordinate system firstly, then were discretized with the special finite volume method adopting flow-condition-based interpolation (FBIC-C). The structure static mechanics equations used were established in rotation coordinate system, and were modeled with the finite element method. The two-way coupling ite-ration method between the fluid equations and the solid finite element equations was used to calculate until the coupling system is convergence. The structure calculation results based on two-way FSI showed that: the equivalent stress and deformation distribution of the runner in one-way and two-way FSI conditions are similar. The locations of maximum stress and deformation are the same. With the increasing of deformation, the relative difference of equivalent stresses gets higher. The highest relative difference values of equivalent stresses and deformations are both occurring at the maximum deformation point. Deformation mainly determines the difference between one-way and two-way FSI results. The one-way FSI is available if accuracy requirement is low at the condition of small deformation.


Hao C.F.,China Institute of Water Resources and Hydropower Research | Hao C.F.,Tsinghua University | Hao C.F.,Beijing IWHR Technology Co. | Jia Y.W.,China Institute of Water Resources and Hydropower Research | And 2 more authors.
Advanced Materials Research | Year: 2014

Water consumption structure adjustment is considered to be effective to alleviate regional water crisis for sustainable socio-economic development and rational water resources utilization. The paper studies mechanism of interactions between socio-economic system and water resources system by coupling of economic model CGE, water allocation model ROWAS and distributed water cycle model WEP to discover the impacts of water consumption structure adjustment on regional socio-economic development and water cycle in the Weihe River basin of China. The results indicate that water consumption structure adjustment transferring water consumption from agriculture to industry and services would distinctly promote economic growth and resident welfare with surface water flow increasing and groundwater level declining. As a result, water supply structure adjustment and integrated regulation of surface water and groundwater would be essential for regional harmonious development. © (2014) Trans Tech Publications, Switzerland.


Hao C.F.,China Institute of Water Resources and Hydropower Research | Hao C.F.,Tsinghua University | Hao C.F.,Beijing IWHR Technology Co. | Jia Y.W.,China Institute of Water Resources and Hydropower Research | And 3 more authors.
Advanced Materials Research | Year: 2014

The paper selects water price as a potentially effective socio-economic factor for the mitigation of conflict between socio-economic development and regional water resources in the Weihe River basin on basis of the driving mechanism research of socio-economic factors for water cycle, and evaluates the variation of socio-economic and hydrological variables by comprehensive simulation of economic system and water resources system by coupling of economic model CGE, water allocation model ROWAS and distributed water cycle model WEP. The results indicate that raising water price would bring down socio-economic development and regional water demand to some extent, but regional water resources tensions just reduce so slightly that corresponding schemes turn out to be not sufficient to deal with water crisis in the Weihe River basin. © (2014) Trans Tech Publications, Switzerland.


Yao C.L.,Beijing University of Technology | Yao C.L.,Beijing IWHR Technology Co. | Chen J.,China Academy of Forestry | Liu L.P.,China Institute of Water Resources and Hydropower Research
Applied Mechanics and Materials | Year: 2014

Rockburst is a phenomenon of geological hazard due to excavation in brittle rockmass of high in-situ stress which endanger to the engineers and construction equipments with unexpectedly damaged. At present, researchers and engineers mainly concentrate to the requirement of rockburst and whether to arise. Although the delay characteristic of rockburst(DCR) has been realized and recorded, but the knowledge of the mechanism of this feature is insufficient. In the paper, the delay characteristic was researched from the stress release rate (SRR) of the excavation rock mass using the numerical simulation software. Firstly, using the core replacement technique, the relation of the SRR and core modulus reduction(CMR) was determined. Secondly, the mechanism of the DCR was analyzed from the elastic strain energy distribution and the plastic strain energy distribution in the different SRR. Finally, the plastic field shape and range under different SRR was contrasted and analyzed. Conclusions can be drawn as follows: with the increase of CMR value, the SRR shows increase trend in the form of exponent. In the process of excavation, the rockmass elastically deform under the low SRR value. When the SRR value equals certain degree, the portion of rockmass will be plastic field and behind the plastic region there will be arise a elastic strain energy centralized phenomenon. Under the different the SRR value, the field style change to the tension-shear field from the shear field in the rock mass and the rockburst rank obviously different. © (2014) Trans Tech Publications, Switzerland.


Yang Y.B.,Beijing IWHR Technology Co. | Deng Z.J.,Beijing IWHR Technology Co. | Deng Z.J.,Beijing University of Technology
Advanced Materials Research | Year: 2014

In order to research the groundwater quality of the Taikang Formation in Tertiary in west of Daqing Oilfield, resistivity logging data of 140 wells in the study area were used to analyze the relations between the groundwater quality and sedimentary sand body and buried depth. The south area of Hongweixing well area and the east of Xishuiyuan well area, including Ranghulu, Qianjincun, Dulitun and Nanshuiyuan well area are favorable for high quality groundwater. The shallower buried water quality is better than the deeper buried water quality of the Taikang Formation in Tertiary. The research provides the evidences to evaluate the groundwater quality in west Daqing Oilfield and determine specific well location, improving the efficiency of exploring the underground drinking water. © (2014) Trans Tech Publications, Switzerland.


Wang X.,Beijing IWHR Technology Co. | Tian Y.-J.,Beijing IWHR Technology Co. | Xue P.,Beijing IWHR Technology Co. | Chen R.,Beijing IWHR Technology Co.
Shuili Xuebao/Journal of Hydraulic Engineering | Year: 2013

In the transient process of the fluid machinery, every operation parameter is the function of the time, and there are also orientation changes for some main parameters. The characteristic of the fluid machinery transient process has been researched, and a kind of computational fluid dynamics method based on rigid body dynamic analysis is presented in this paper. Taking the vertical axis hydro turbine for example, the motion and stress state of the object is obtained by coupling the rigid body dynamics equations and computational fluid dynamics for iteration to get both the state of rigid body motion and the force information. The computing result indicates that the method can simulate the transient process of the fluid machinery quite well.


Hao C.-F.,China Institute of Water Resources and Hydropower Research | Hao C.-F.,Beijing IWHR Technology Co. | Jia Y.-W.,China Institute of Water Resources and Hydropower Research | Wang H.,China Institute of Water Resources and Hydropower Research
Shuili Xuebao/Journal of Hydraulic Engineering | Year: 2012

Hydrological forecasting and flood management play an important role in basin flood control system which includes engineering and non-engineering measures. It's necessary to research on coupling of atmospheric and hydrological models so as to further extend the effective period of flood forecasting and improve the accuracy of hydrological forecasts by comprehensive simulation of the whole water cycle process. The paper establishes integrated simulation platform of Land-Atmosphere Coupling by unilateral coupling of numerical weather prediction model WRF and distributed hydrological model WEP. Finally, the processes of precipitation and runoff between Sep. 24th and Oct. 31st in 2000 of the Weihe basin are simulated, which shows satisfying accuracy and great potential of Land-Atmosphere Coupling research.

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