期刊：
E3S Web of Conferences,2020年143 ISSN：2267-1242
通讯作者：
Liu, J.
作者机构：
[Liu J.] School of Civil Engineering and Architecture, Wuhan Polytechnic University, China;[Zhang H.] Graduate School of Engineering, Kobe University, Japan
通讯机构：
[Liu, J.] S;School of Civil Engineering and Architecture, China
会议名称：
2nd International Symposium on Architecture Research Frontiers and Ecological Environment, ARFEE 2019
摘要：
In recent years, China has vigorously promoted the construction of sponge cities and achieved good results. The university campus is a relatively independent existence in the city. Due to historical planning and construction reasons, it is easy to accumulate water when the city has a large amount of precipitation. Taking Wuhan Polytechnic University as an example, this paper analyzes the causes of waterlogging on campus from the aspects of urban precipitation, campus planning, rainwater harvesting and utilization, and proposes a series of low-impact development (LID) measures, such as increasing the permeability of paving area, building vegetative ditch, setting up infiltration green belt, and renovating the artificial lake in the school. The author adopted the SWMM model of urban stormwater management developed by the U.S.EPA as a carrier to construct a low-impact rainwater system model, The SWMM model which funded by the US Environmental Protection Agency was used to construct a low-impact development rainwater system model to evaluate the effect of low-impact development measures on ground runoff control.
作者机构：
[Liu Jingjing] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan, Peoples R China.;[Zhang Yingchao] Wuhan Mingbang Real Estate Co LTD, Wuhan, Peoples R China.
会议名称：
2011 International Conference on Internet Computing and Information Services (ICICIS 2011)
会议时间：
2011-01-01
会议地点：
Hong Kong, China
会议主办单位：
[Liu Jingjing] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan, Peoples R China.^[Zhang Yingchao] Wuhan Mingbang Real Estate Co LTD, Wuhan, Peoples R China.
关键词：
risk;analysis;development;management
摘要：
With rapid economic development and the progressively more intense competition, building industries are facing the constant change, and these will bring risk to the enterprise development. Risk management is needed in the manufacturing course and has become the indispensable part of the national lash-up system. Based on the analysis of risk management situation of construction firms, the connotations of risk management are analyzed in this paper, then the necessity and approaches are also expounded. Appropriate patterns of risk management in building industry are erected based on description and analysis of the risk and the effective methods of risk management are presented. Through systematic research and analysis, this paper intends to provide theoretical foundation for the risk management of the building industry in China and strengthen their capabilities to evade risks.
作者机构：
[Liu Jingjing] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan, Peoples R China.;[Zhang Yingchao] Wuhan Mingbang Real estate Co LTD, Wuhan, Peoples R China.
会议名称：
International Conference on Applied Informatics and Communication (ICAIC 2011)
会议时间：
AUG 20-21, 2011
会议地点：
Xian, PEOPLES R CHINA
会议主办单位：
[Liu Jingjing] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan, Peoples R China.^[Zhang Yingchao] Wuhan Mingbang Real estate Co LTD, Wuhan, Peoples R China.
会议论文集名称：
Communications in Computer and Information Science
关键词：
green supply chain;management;cyclic economy
摘要：
According to the definition of green supply chain management, giving its connotation in detail in cyclic economy model. Analyzing the enterprise impact on the environment protection and sustainable development, reviewing the implementation of the green supply chain management in developed countries and regions enterprise in cyclic economy model, studying on how to implement green supply chain management in the enterprise.
摘要：
During rainfall infiltration process, the groundwater flow in saturated‐unsaturated zone of slope is a two‐phase seepage process of water and gas. Considering Buckley‐Leverett equation, a new mathematical model for saturated‐unsaturated seepage in rock and soil media was presented with the foundation of two‐phase seepage equation of continuity and Darcy’s law. The equations are discretized with finite difference dynamical method, based on which, a new three‐dimensional program is developed. Seepage process in a slope under rain condition was simulated using the new model, pore pressure and water saturation changes were simulated. The calculation case shows that the results obtained by the model are reasonable for saturated‐ unsaturated seepage problem.
摘要：
The rapid development of multimedia-computer and the Internet has pushed forward distance education. This paper introduces the idea and method of knowledge management into the domain of distance education after analyzing the present status of distance education development and explores knowledge management of campus learners' learning process. It studies the construction of knowledge management model on campus learners' learning process in distance education.
关键词：
web database;data mining;knowledge discovery;mid-ware;B/S archietecture
摘要：
Web database of geological information is constructed to manage the geological information efficiently. The infrastructure of the web database is implemented with B/S model, where the geological information is classified into four types of entities and stored in the database with Microsoft SQL Server 2005.The web server is implemented with Microsoft IIS and the exchange of the data between the web server and the database server is implemented by mid-wares which are implemented with COM technology. Basing on the web database, the structure of geological spatial data mining system, the process of geological spatial data mining and the geological knowledge discovering are discussed. The web database of Daqing Oil Filed Co Ltd in China is presented as an engineering case to explain the implementation of the web database and the data mining with the database constructed.
期刊：
ICIC 2009: SECOND INTERNATIONAL CONFERENCE ON INFORMATION AND COMPUTING SCIENCE, VOL 2, PROCEEDINGS: IMAGE ANALYSIS, INFORMATION AND SIGNAL PROCESSING,2009年:265-268
通讯作者：
He, X.
作者机构：
[He, X.; Liu, J. J.] Wuhan Polytech Univ, Dept Civil Engn, Wuhan 430023, Peoples R China.
关键词：
artificial neural network;Levenberg-Marquardt algorithm;data mining;knowledge discover;oil productive index
摘要：
Levenberg-Marquardt (shorted as L-M) algorithm is improved and adopted to train the neural network. The improved training algorithm leads to better convergence, faster convergent speed and higher precision. The proposed L-M neural network is used for geological data mining of oil productive index basing on the geological database. The process of geological spatial data mining and the geological knowledge discovering with L-M neural network are discussed. As an engineering case, data mining and knowledge discovering of the oil productive index basing on the reservoir property stored in the geological database are presented to explain the method proposed.
摘要：
The resource constrained project scheduling problem (RCPSP) is extended to flexible resource constrained project scheduling problem (FRCPSP) in this paper. Resources are assumed to have certain capabilities demanded by project activities, but not necessarily all of them. Resource capability matrix (RCM) is proposed to represent flexible resources. A multi-agent system composed of resource agent, activity agent, and service agent is put forward as an information infrastructure to support flexible resource constrained project management in a highly distributed environment. The definitions of component agents and the strategies of flexible resource allocation are discussed.
作者机构：
Institute of Porous Mechanics, Wuhan Polytechnic University, Wuhan 430023, China;Institute of Rock and Soil Mechanics, Chinese Acad. of Sci., Wuhan 430071, China
通讯机构：
Institute of Porous Mechanics, Wuhan Polytechnic University, China
摘要：
In order to find out the rule of pressure distribution of landfill gas (LFG) in landfill with single vertical extraction well, a comprehensive three-dimensional (3D) model of gas generation and transport in landfills is developed based on Monod equation, hydrodynamics in porous media, and seepage theory of gases. The governing non-linear equation of mass transport and reaction is solved by finite deference method. Simulation results show that under the condition of single extraction well with negative pressure, landfill gas gathers around extraction well, where there is a prominent pressure increasing. However as the time goes on, the generation of LFG turn to be stable with the mitigating of the increasing of LFG, which is due to the consuming of organic components and the forming of anaerobic environment in landfill. The model could be utilized for investigating gas generation and transport in landfill, and the analysis on pressure distribution under the condition of single extraction well is also significant to the designing and building of the LFG recovery systems.
作者机构：
[Liu, Lei; Yang, Yong; Liu, Jian-Jun; Xue, Qiang] Institute of Porous Mechanics, Wuhan Polytechnic University, Wuhan 430023, China;Institute of Rock and Soil Mechanics, Chinese Acad. of Sci., Wuhan 430071, China
通讯机构：
Institute of Porous Mechanics, Wuhan Polytechnic University, China
摘要：
The mutual action among the complex geological environments in which surrounding solid waste is situated cannot be ignored anymore. Based on Darcy's law and the principle of effective stress and the dynamics of fluids in porous media, a multi-field coupled model of settlement in landfill is established. The numerical visualization simulation on the distribution law of settlement in landfill has been presented by finite element method. The results show that the settlement of landfill soil is fast with couple effect and the effect of coupling cannot be ignored. The theory evidence is provided for forecasting settlement of landfill quantitatively, which has important theoretical significance and practical use-value for the storage capacity and stabilization in landfill.
期刊：
NEW TRENDS IN FLUID MECHANICS RESEARCH: PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS,2007年:592-592
通讯作者：
Liu, J. J.
作者机构：
[He, X.; Liu, J. J.; Pei, G. H.] Wuhan Polytech Univ, Inst Poromech, Wuhan 430023, Hubei, Peoples R China.;[Liu, X. G.] Chinese Acad Sci, Inst Porous Flow & Fluid Mech, Langfang 065007, Peoples R China.
通讯机构：
[Liu, J. J.] W;Wuhan Polytech Univ, Inst Poromech, Wuhan 430023, Hubei, Peoples R China.
摘要：
Casing damage has become a very serious concern in China since 1970s. Along with adoption of high-pressure water injection and high pressure hydraulic fracturing in oil fields, casing damage become a challenging technical difficulty in the Chinese and international petroleum industry. Many researchers have been devoted to solve the problems and had identified important factors affecting casing damage. such as geologic structure, development operation and drilling program. Although stress concentration around well bore is the direct reason of casing damage, it is the flow field change that induced geostress redistribution. Therefore, it is necessary to study the fluid-solid coupling during oil development to identify casing damage mechanisms. According to the casing damage characters, casing damages induced by seepage can be classified into three kinds: shear-sliding damage, tension damage, and squeeze damage. Shear damage is induced by geologic fault slippage because water or oil flow into fault, and intenerates the mechanical parameters. When porous pressure increases to critical value, fault will slippage, and cause casing collapse. Tensile damage is induced by vertical strata displacement. When large volume water is injected into reservoir. porous pressure rises, and leads to strata elevated. If the exceeds the casing’s tensile strength, casing pipe will be destabilized. Extrusion casing damage is induced by large pressure gradient around the well bore as a pressure releasing effect in the water injection wells. Based on fluid-solid coupling theory, the authors analyzed the mechanism of the 3 kinds casing damage and presented mathematical models. Using 3-D finite element method, the authors simulated the rock deformation patters causing casing damages in Daqing oil field, China, during water-flooding operations. According to the simulation results, some technical measures and critical injection pressure to prevent casing damage are given in the end for Daqing oil field.
摘要：
Geodetic deformation severely affects the development of the oilfield and probably causes casing damage or abandonment of injection wells and producers. Therefore, it is meaningful to survey and study three-dimensional geodetic deformation in the process of the oilfield development. In order to study this issue, 11-year long term surveying of three-dimensional geodetic deformation has been carried out while developing Naner area in Daqing oilfield. Basic rules of 3-D geodetic deformation have been obtained through surveying. Results show that production and injection under high pressure may cause the changes of surface elevation, and geodetic deformation correlates with simultaneous formation pressure. Precautions and relative technological measurements have been put forward in the waterflood development in Naner region and provide theoretical guidelines for the production and casing preservation of the oilfield. Finally, surveying results are interpreted by porous elastic theory. Mathematical model to calculate 3-D geodetic deformation is put forward in the course of the oilfield development.
关键词：
fluid-solid interaction;linear elasticity;finite element method;porous flow
摘要：
Combining the theory of porous flow and elastic-plastic mechanics and considering the interaction of coal-bed methane and coal-mass, a mathematical model for the movement of coal-bed methane and the numerical method were established. Through dispersing the equation of coal-bed methane porous and coal distortion, we obtained a functional analysis equation, and educed the coupling solution by finite element method. Finally, a calculated example was presented in this paper.
