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research on forecasting model of sandstone deformation rate during sine wave loading segment under the lag effect

Science china(Technological Sciences) 2010年第5期53卷 1442-1449页

作者： LIU Jie1,2,LI JianLin1,2,QU JianJun1,ZHOU JiFang3,ZHANG ChaoFeng3 & LI JianWu1 1Key Laboratory of Geological Hazards on Three Gorges reservoir Area,Ministry of Education,china Three Gorges University,Yichang 443002,china 2College of Civil and hydropower Engineering,china Three Gorges University,Yichang 443002,china 3.r’tan hydropower development company,ltd.chengdu 61000,china Key Laboratory of Geological Hazards on Three Gorges reservoir Area Ministry of Education China Three Gorges University College of Civil and hydropower Engineering China Three Gorges University

To reduce data variance caused by individual differences of different samples,a new experimental method is proposed by loading and unloading the axial forces with different frequencies and different waves of a certain load amplitude to the same rock sample without damaging *** time segments are defined and fractionized into segments I and Ⅱ.Criterions for seg-mentation,definitions of relevant parameters and empirical analysis are also offered *** the course of sinusoidal loading,the serious peak value dislocation of the displacement variation rate and the loading rate is defined as peak ***,the definition of the apparent tangent modulus is put forward and the linear relation between it and the vertical force in the frequency of 0.1,0.2,0.5 Hz sinusoidal loading segment is confirmed to be ever-present on the basis of the test *** the calculating formula of the deformation rate in non-lag time is *** is thus suggested that the deformation rate should be codetermined by the loading rate df/dt and instant load f(t),which well explains the peak dislocation of the time-variable curve peak value of dl/dt and deformation rate of df/*** the lag time derivation model is established and by comparing the calculated values with the measured ones,it is demonstrated that the above formula offers a better simulation of the sandstone deformation rate in the sinusoidal loading segment,with the load amplitude being 96 kN and the frequency ranging from 0.1 Hz to 0.5 Hz.

关键词： lag time segments peak shifting phenomenon apparent tangent modulus deformation rate

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research on the multi-level intake water temperature effect of the Yalong river Jinping-I hydropower project

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Science china(Technological Sciences) 2011年第S1期54卷 125-132页

作者： WU ShiYong 1,CAO Wei 1,WANG HongMei 1,SUN ShuangKe 2 &CHEN QiuWen 3 1 Ertan hydropower development company,ltd.,chengdu 610051,china 2 china Institute of Water resources and hydropower research,Beijing 100038,china 3.research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,china Ertan hydropower development company Ltd.

Based on the discussion of the multi-level intake application status of high dam reservoir,this paper takes the Jinping-I hydropower project reservoir in the Yalong river as an example,which is shaped by the highest 305 m high arch dam,and carries out the forecasting research on the reservoir temperature by numerical simulation and physical model *** paper studies the intake effect of withdrawing the surface warm water by the stoplog gates inlets and verifies the reliability of the mathematical model by comparative *** results show that for a high dam hydropower station,taking the appropriate multi-level intake measure can withdraw the surface warm water in the spawning season and provide a favorable environment for the fish *** technical ideas and implementation scheme are adopted in this *** can provide technical reference for the solutions of similar problems in the future and it also has important engineering significance on the research of water temperature in large deep reservoirs.

关键词： water temperature multi-level intake Jinping-I hydropower project

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In situ experiments on width and evolution characteristics of excavation damaged zone in deeply buried tunnels

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Science china(Technological Sciences) 2011年第S1期54卷 167-174页

作者： LI ShaoJun 1,FENG XiaTing 1,LI ZhanHai 3,CHEN Bingrui 1,JIANG Quan 1,WU ShiYong 2,HU Bin 2 &XU JinSong 2 1 State Key Laboratory of Geomechanics and Geotechinical Engineering,Institute of rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,china 2 Ertan hydropower development company,ltd.,chengdu 610051,china 3 School of resources and Civil Engineering,Northeastern University,Shenyang 110004,china State Key Laboratory of Geomechanics and Geotechinical Engineering Institute of Rock and Soil Mechanics Chinese Academy of Sciences School of resources and Civil Engineering Northeastern University

The seven long tunnels of Jinping II hydropower station are deeply *** width and evolution characteristics of excavation damaged zone(EDZ) are the key problem to the design of tunnels excavation and *** order to study this problem,several specific experimental tunnels with different overburden and geometric sizes were excavated at this *** borehole camera,sliding micrometer,cross-hole acoustic wave equipment and acoustic emission apparatus were *** paper introduced the comprehensive in situ experimental methods through pre-installed facilities and pre-drilled *** properties of the surrounding rock mass,including cracks,deformation,elastic wave and micro fractures,were measured during the whole process of the tunnel *** width and characteristics of formation and evolution of tunnels EDZ were analyzed under different construction methods involving of TBM and drilling and blasting,the test tunnels were excavated by full-face or two *** relationships between EDZ and tunnel geometry sizes,overburden and excavation method were described as *** results will not only contribute a great deal to the analysis of rock mass behavior in deeply buried rock mass,but also provide direct data for support design and rockburst prediction.

关键词： deeply buried tunnel excavation damaged zone evolution characteristics in situ experiments

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Theory on real-time control of construction quality and progress and its application to high arc dam

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Science china(Technological Sciences) 2010年第10期53卷 2611-2618页

作者： ZHONG DengHua1, rEN BingYu1, LI MingChao1, WU BinPing1 & LI MingChuan2 1 Department of Hydraulic and Hydroelectric Engineering, School of Civil Engineering, Tianjin University, Tianjin 300072, china 2 Ertan hydropower development company, ltd., chengdu 610051, china Department of Hydraulic and Hydroelectric Engineering School of Civil Engineering Tianjin University

A complete scheme for solving the key scientific problems associated with high-standard,high-intensity continuous construction of high arch dams was presented. First,based on a coupling analysis of construction system decomposition and coordination for a high arc dam,a mathematical model for real-time control of construction quality and progress that considers complex constraints was developed. Second,a method of progress control was proposed based on a dynamic simulation. Third,a dynamic quality control mechanism was established based on construction information collected using a PDA. Fourth,a system for integrating collected information,progress simulation and quality control analyses under a network environment was developed. Finally,these methods were applied to a practical project to show that each aspect of a construction process can be managed effectively and that real-time monitoring and feedback control can be realized. Our methods provide new theoretical principles and technical measures for quality and progress control in the high arc dam construction process.

关键词： construction quality construction progress dynamic simulation real-time control network high arc dam

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Theoretical analysis and experiment of micromechanics and mechanics-optics coupling of distributed optic-fiber crack sensing

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中国科学：技术科学英文版 2011年第S1期54卷 185-191页

作者： LIU HaoWu 1,2,CHEN Jiang 2,SUN Man 3 & DING rui 2 1 State Key Laboratory of Hydraulics and Mountain river Engineering,Sichuan University,chengdu 610065,china 2 School of Water resource hydropower,Sichuan University,chengdu 610065,china 3 School Electrical Engineering and Information,Sichuan University,chengdu 610065,china State Key Laboratory of Hydraulics and Mountain river Engineering Sichuan University School of Water resource hydropower Sichuan University School Electrical Engineering and Information Sichuan University

The micromechanical behaviors and mechanics-optics coupling effects of optic-fiber-concrete complex in the distributed optic-fiber sensing concrete-crack technology,which was used in health monitoring of Wu Gorge Bridge on Yangtze river and a large dam successfully,have been investigated.A micromechanical theoretical analysis method and micromechanical frictional contact bi-interface model,as well as a modified optical theoretical analysis method of the mechanics-optics coupling effects are presented.A series of verification experiments,including mechanical experiments and mechanics-optics coupling experiments,have been *** results of micromechanical theoretical analysis and the analysis of the modified theory of mechanics-optics coupling along with mechanical and optical experimental data are shown to be in close *** the micromechanical theory and the modified theory of mechanics-optics coupling with their analysis methods can not only enhance credibility of this novel distributed sensing technology but also provide a way to understand its sensing mechanism and optimize its technical details and system.

关键词： optic-fiber sensing mechanics-optics coupling micromechanics health monitoring concrete structure crack detection

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Study on reservoir operation optimization of Ertan hydropower Station considering GFS forecasted precipitation

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Science china(Technological Sciences) 2011年第S1期54卷 76-82页

作者： PENG Yong 1,WANG GuoLi 1,tanG GuoLei 1,ZHOU HuiCheng 1,WANG YaJun 2 & JIAN DePing 2 1 Institute of Water resources and Flood Control,Dalian University of Technology,Dalian 116023,china 2 Ertan hydropower development Co.,ltd.,chengdu 610021,china Institute of Water resources and Flood Control Dalian University of Technology

The medium-term runoff forecasting provided new information for forecast of medium and long term runoff and optimal hydroelectric power *** to the actual runoff and hydropower generating characteristics of Ertan hydropower Station,we studied the decade runoff quantitatively and grade forecast model based on Global Forecasting System(GFS) precipitation forecast information in wet season,then used the posteriori runoff transition probability and measurable probability of runoff forecast to research the uncertain runoff description based on runoff forecast;finally on the basis of the runoff description and the grading forecast accuracy of GFS-based next 10 days'total forecast precipitation,we studied the uncertain optimal operating model of Ertan hydropower Station considering runoff *** results showed that the runoff forecast considering GFS forecast precipitation and uncertainty has significantly improved the existing runoff description and operating optimization model,and obviously raised the hydropower generation efficiency of Ertan reservoir.

关键词： global forecasting system runoff forecasting runoff description uncertainty optimal operation

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Controlling the uncertainty in reservoir stochastic simulation

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Petroleum Science 2010年第4期7卷 472-476页

作者： Cui Yong Chi Bo Chen Guo Ouyang Cheng Xia Bairu china University of Geosciences Beijing 100083 China research Institute of Daqing Oilfield company ltd. Heilongjiang 163712 China Geological Exploration ＆ development research Institute PetroChina Chuanqing Drilling Engineering CompanyChengdu Sichuan 610051 China

Unexpected noise in reservoir stochastic simulation realization may be too high to make the realization useful, especially when there is a lack of hard data. Through discussing the uncertainties, we present two ways to control the uncertainty ratio that is brought by the algorithm of stochastic simulation. By reasonably reducing the random value of the stochastic simulation result, the unexpected values introduced by the residual that associates with random series can be controlled. Another way when the data disperse unevenly is to control the stochastic simulation order by grouping the points that need to be simulated to make those points which can be simulated by more neighborhood hard data calculated first. Both methods do not go against the core stochastic simulation algorithm.

关键词： reservoir stochastic simulation hard data Kriging algorithm residual realization

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THE PrOGrAM AND ITS LATEST rESEArCH ADVANCE ON HIGH ArCH DAM OF THE JOINT FUND OF YALONG rIVEr hydropower development NSFC

THE PROGRAM AND ITS LATEST RESEARCH ADVANCE ON HIGH ARCH DAM...

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International Symposium on Modern Technology of Dams--The 4th EADC Symposium

作者： Wu Shiyong Shen Manbin Ertan hydropower development company,ltd.Shuanglin road 98#,chengdu china,610021,

The Joint Fund of Yalong river hydropower development is set up jointly by the National Natural Science Foundation of china(NSFC)and Ertan hydropower development company,ltd.(EHDC)to support the basic and applied researches in the area of hydropower development,aims to solve the key scientific and technical issues in Yalong river hydropower development and to promote the advance in hydropower technology of *** programs cover the fields of hydropower engineering structure,engineering hydraulics,geotechnical engineering, water resource and water environment,basin hydropower development and management,*** joint fund has been implemented for more than one *** this paper,the research content and latest research advance of the programs on high arch dam are presented in detail.

关键词： the Yalong river the Joint Fund high arch dam latest advance

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research on Water resources Conservation of Mountain river Based on the Concept of region Partition

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Journal of Mountain Science 2011年第4期8卷 582-591页

作者： LIU Yubang TAO Qingyu LIANG Chuan WU Yong State Key Laboratory of Geohazard Prevention and Geoenvironment Protection chengdu University of Technology Chengdu 61o059 China State Key Laboratory of Hydraulics and Mountain river Engineering College of Water Resource & Hydropower Sichuan University Chengdu 61oo65 China Academic Journal Center of chengdu University of Technology Chengdu 61oo59 China

Presently concepts and methods related to water resources conservation of mountain rivers are seriously insufficient,and its level is far from being adaptable to the development of a harmonious *** mountain ecosystems play a key role in water resources conservation of mountain rivers,and the characteristics of mountain ecosystems and hydrologic features of mountain river follow strong temporal and spatial distribution,partition theory can be applied to the water resources conservation of mountain *** theory observes the following partition principles:regional relativity,spatial continuity,integralcounty,meeting management needs,hierarchical principle,and comparability *** it lays equal emphasis on both water resources conservation and environmental protection,on both water quality conservation and water quantity protection,on the combination of water features,water cycle and water *** the partition methods,index method and map superposition method will be applied in region *** example of region partition of water resources conservation in the upper reaches of the Yangtze river shows that the partition theory is practicable in water resources conservation of mountain rivers,and it provides a platform for future study in water resources conservation.

关键词： Water resources conservation Mountain river region partition Mountain ecosystems

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Visual Dynamic Simulation and Optimization of Zhangjiuhe Diversion Project

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Transactions of Tianjin University 2008年第3期14卷 186-192页

作者：钟登华刘建民熊开智付金强 School of Civil Engineering Tianjin University TEDA Investment Holding Co. ltd. Tianjin 300457 China Ertan hydropower development Co. ltd.

With the aim of visualizing the real-time simulation calculation of water delivery system (WDS), a structural drawing-oriented (SDO) simulation technique was presented, and applied to Zhangjiuhe Diversion Project, which is a long-distance water delivery system constructed for draw- ing water from the Zhangjiuhe river to Kunming city. Taking SIMULINK software as simulating plat-form, the technique established a visual dynamic simulation model for the system. The simulation procedure of the system was simplified,and the efficiency of modeling was also enhanced according to the modularization and reutilization of the simulation program. Furthermore, a self-optimization model was presented. Based on the digital simulation models, the on line controlled optimization link was added, and the input data can be continually optimized according to the feedback information of simulating output. The system was thus optimized automatically. Built upon MATLAB software, simulation optimization of the Zhangjiuhe Diversion Project was achieved, which provides a new way for the research of optimal operation of WDS.

关键词： Zhangjiuhe Diversion Project structural drawing-oriented technique digital simulation simulation optimization visualization

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