Truss Structure Optimization Based on Improved Chicken Swarm Optimization Algorithm by Yancang Li, Shiwen Wang, Muxuan Han

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A Review on Anti-Dip Bedding Rock Slopes Subjected to Flexural Toppling by Xin Qu, Fangfang Diao, Xingqian Xu, Cheng Li

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Application and Discussion of Intelligent Operation and Maintenance of BIM Visualization Platform for Drainage Pumping Stations by PENG Muzhan, ZANG Peiyuan, REN Weixu, GAO Ting, XU Zedian

“…The construction of a BIM visualization platform for the intelligent operation and maintenance of drainage pumping stations is an important part of smart water.It plays a crucial role in improving the project management level,reducing the loss of possible flood disasters,and strengthening the ability of water utilities to deal with risks.However,in the operation and maintenance management of traditional water utilities,the backward management methods and means often result in problems such as high costs,low efficiency,and slow response.Therefore,this paper puts forward a solution to the top-level design of the platform architecture.In view of the current management practice,we realize the functions including BIM model visualization,the unit operation status display,inventory asset management,statistical report query,and personnel management by combining the platform with the emerging technologies in the information field.This study demonstrates a good engineering application for the construction of the intelligent operation and maintenance platform and can be used for reference for the follow-up construction of smart water and the informatization of water conservancy.…”
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Construction land transition in Qinghai-Tibet Plateau and its eco-environmental effects during 2000-2020 by ZHANG Zining, LUO Junqiang, ZHANG Peilei, RONG Han, LIU Haiyang, AN Shuang, CHANG Genying

“…The primary areas of change were the Qinghai Plateau and the Qaidam Basin, with significant changes observed in provincial capitals along river valleys, industrial cities in the basins, and tourist cities. (2) In earlier years, construction land mainly transitioned to cropland and grassland, while in later years, it primarily converted to water bodies and water conservancy land. Early expansion mainly occupied unused land, whereas later expansion predominantly encroached on ecological land such as cropland, forest, and grassland. …”
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Earthquake Response Analysis of Tall Reinforced Concrete Chimneys considering Eccentricity by Yingchun Jiang, Tielin Liu, Yikui Bai

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Study on the Water Ecology Protection and Water Environment Remediation Technology, focusing on the heavy metal removal by Zhao Zihan

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Design of System for Monitoring Seepage of Levee Engineering Based on Distributed Optical Fiber Sensing Technology by Huaizhi Su, Yeyuan Kang

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New Concept and Practice of Urban Flood Control Design Based on Waterfront Space Design by LI Yuanyuan, HOU Guibing, WANG Yingjie

“…Through systematic summary and problem analysis of domestic and foreign urban flood control design,this paper believes that the urban flood control design should develop from traditional water conservancy engineering design to a new stage of building urban waterfront space that integrates urban planning,ecological environment,garden landscape and other disciplines,and puts forward a new concept of urban flood control design based on urban waterfront space design.Through key measures such as the transformation of the water system in the connected area,the construction of green flexible ecological embankments,and the design of waterfront spaces shared by people and water,the waterfront spaces with urban public service functions can be created,which can effectively reduce the blocking of the ecological corridor between the city and the water system,better achieve the comprehensive effects of water security and aquatic ecology,as well as effectively promote the harmonious coexistence of city &water and the high-quality and sustainable development of the city under the premise of ensuring the safety of flood (tide) control.…”
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Re-evaluation of Underflow Energy Dissipation Effect Based on AHP-fuzzy Comprehensive Evaluation Method by LIU Jialin, QIU Yong, ZHOU Xinyu, PU Jinbing, JIANG Yujia

“…The effects of current underflow energy dissipation are basically evaluated by a single indicator (energy dissipation rate) based on engineering safety.To better adapt to the construction needs of ecological water conservancy,this paper comprehensively analyzes all relevant factors of underflow energy dissipation and conducts the qualitative and quantitative analysis of multiple indicators by the application of hierarchical analysis and fuzzy comprehensive evaluation.It sets two criterion layers of main characteristic indicators (energy loss,aeration concentration of water body after energy dissipation,fluctuation pressure,and tail water flow pattern) and minor characteristic indexes (anti-impact flow velocity of downstream,Froude number of pre-jump section, and inundation degree).Then,it calculates the corresponding weights and degree of membership respectively to obtain the re-evaluation result of the energy dissipation effect of a grid underflow energy dissipater being 83.3 points (B grade).The results show that the comprehensive evaluation based on multiple factors can better take into account the ecological requirements and other influencing factors of the downstream river on the premise of meeting engineering safety.…”
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Phytoplankton growth and succession driven by topography and hydrodynamics in seasonal ice-covered lakes by Ziyue Zhao, Yanfeng Wu, Y. Jun Xu, Yexiang Yu, Guangxin Zhang, Dehua Mao, Xuemei Liu, Changlei Dai

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Assessing and predicting Bojiang lake area and LULC changes from 2000 to 2045 by Muhammad Naeem, Yongqiang Zhang, Xiaoqiang Tian, Ping Miao, Congcong Li, Zhenwu Xu, Longhao Wang, Faisal Mumtaz, Zixuan Tang, Shaoyang He

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Development and Application of Real-time Dynamic Flood Risk Mapping by TAN Senming, GUO Shuhui, CAO Runxiang

“…This framework aims to support decision-making in flood control and drainage planning, water conservancy project construction, and management of rivers, lakes, and reservoirs.…”
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Study on the Mechanical Properties of Flexible Prefabricated Highway Structural Systems considering the Effect of Two-Way Fluid-Structure Interaction by Liang Huang, Wenbo Ma, Haotian Li, Shizhan Xu, Zebin Song, Yujie Hou

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Shear Behavior of Wheat-Concrete Interface during Monotonic and Cyclic Loading by Changnv Zeng, Yuke Wang

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Research and Design of Durability of High PerformanceAnti-abrasion Concrete in Dry Environment by HU Hongxia

“…For the water conservancy and hydropower anti-abrasion concrete in dry environment, dueto the low water-binder ratio, the durability problems such as concrete shrinkage cracking andvoid are very prominent, and the cost of maintenance and repair is huge. …”
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Inversion Analysis of Landslides with Dual Structure Based on Morgenstern-Price Method by HAN Yu, NIE Peng, ZHAN Jie, CHEN Siyao

“…Slope stability is important in the investigation and design of water conservancy and hydropower projects,which has a great impact on the safety and stability of projects.The simplified Bishop method was used to calculate the stability of the slope in the study area for the first time of slope treatment,and the parameters were obtained from field sampling and laboratory tests.After the implementation,the anti-slide pile still has large deformation.By analysis,it is concluded that the calculating model is improperly selected,and the mechanical parameters of rock and soil mass in a saturated state are overly large,which leads to the distortion of calculations.For the second treatment,the mechanical model was re-established,and the limit equilibrium theory based on the Morgenstern-Price method and the Autobank software developed by Hohai University were used to analyze the sensitivity of slope stability in the study area.The influence of the cohesion c and the internal friction angle φ on the safety factor was studied,and the mechanical parameter invasion of rock and soil mass was conducted to provide a basis for secondary landslide control.The monitoring results show that the second slope treatment measures are safe and feasible,which indicates that the physical and mechanical parameters obtained by inversion are reliable.The inversion analysis method can provide reference for the stability calculation of similar dual structure slope engineering.…”
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Flood Risk Assessment for Zengcheng District of Guangzhou City Based on Complex Network Models by LI Bowen, ZHANG Yin, YANG Fang, ZHAO Hongjun

“…Under the dual influences of climate changes and urbanization,the frequent urban flood disasters exacerbate losses caused by the flood disaster chain and pose a serious threat to the public life safety and sound development of cities.Based on the disaster data from 1980 to 2020 in the Zengcheng District of Guangzhou,this paper builds a complex network model of disaster evolution by employing heavy rain as the disaster source and conducts disaster risk analysis.The vulnerability of the disaster network is evaluated by the calculation of the network average disaster path,edge betweenness,and connectivity.Meanwhile,the correlation between disaster events is analyzed by the co-occurrence rate of the events.The results show that high-intensity and short-duration heavy rain is the source of flood disasters in Zengcheng District,Guangzhou.Damage to water conservancy facilities is a key node affecting the vulnerability of the disaster network,and inundated farmland is the main cause of significant economic losses,with house flooding caused by water on the road surface being the biggest disaster risk.The results can provide references for risk control of the flood disaster chain in Zengcheng District,Guangzhou,and related emergency management decisions.…”
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Permeability Evolution of an Intact Marble Core during Shearing under High Fluid Pressure by Yuan Wang, Yu Jiao, Shaobin Hu

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Enhanced Asymmetric Bilinear Model for Face Recognition by Wenjuan Gong, Weishan Zhang, Jordi Gonzàlez, Yan Ren, Zhen Li

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Study on the Spatial and Temporal Differences of Water Poverty in the Yellow River Basin and Its Influencing Factors by WANG Shuhe

“…In order to scientifically and reasonably evaluate the current situation of water poverty in the Yellow River Basin,and strengthen the planning and management of the sustainability of water resources in the Yellow River Basin,this paper builds a water poverty index model based on the theory of water poverty,measures the level of water poverty of 9 provinces in the Yellow River Basin from 2011 to 2017 by the model,and analyzes its temporal and spatial differences and influencing factors.The results show that:①The water poverty of the 9 provinces in the Yellow River Basin was serious overall,the water poverty gap was widening year by year,and the WPI rankings of the provinces were changed.②There were significant spatial differences in the level of water poverty,including severe water poverty,moderate water poverty,and mild water poverty.③From the overall perspective of the Yellow River Basin,the industrial structure had a negative impact,while the environmental regulation,technical level,farmland water conservancy facilities construction and soil erosion control area had positive impacts;from a provincial perspective,the key factors affecting the level of water poverty in each province were different,based on which suggestions on promoting the efficient use of water resources and alleviating the water poverty are put forward.…”
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