Abstract:This paper conducts an analysis and calculation of a dam failure flood for the Wuqiangxi Reservoir dam.Based on the actual engineering conditions,the causes of dam failure are analyzed.The Mike software series is employed to construct a one-dimensional and two-dimensional coupled hydrodynamic model,which simulates the process and impact range of the dam failure flood.The results indicate that the maximum peak flow of the dam failure is 97 231.7 m3/s.When the flood reaches Changde City,the peak flow is less than the 100-year flood control standard of 31 600 m3/s,with minimal impact on the urban area.The maximum total inundation area downstream is approximately 183.2 km2,with Taoyuan County having the largest inundation area of 89.94 km2.The area with the maximum inundation depth is the town of Wuqiangxi,reaching about 20.02 m.This analysis can provide technical support for the safety management of the Wuqiangxi Reservoir dam and the evacuation planning for downstream towns.

Abstract:The comprehensive construction of urban rail transit has effectively improved the urban traffic conditions.However,during the construction,many stations have experienced the emergence of negative external spaces,leading to issues such as spatial fragmentation.This paper takes the negative external spaces around the Rail Transit Line 9 station,Gailanxi,in Chongqing as the research object.Utilizing questionnaire surveys,observational methods,and interviews,the study constructs a Post Occupancy Evaluation(POE)index system to evaluate user satisfaction with the external negative spaces of urban rail transit.Furthermore,the paper proposes design strategies to optimize these negative spaces.

Abstract:This paper focuses on the construction of a tunnel that crosses an existing river and utilizes the finite element method to establish a numerical analysis model for the construction process.The study analyzes the deformation of the surrounding rock and the initial support stress distribution during the tunnel construction before and after reinforcement.The results indicate that,before the reinforcement of the tunnel surrounding rock,there is significant displacement during the construction process,and the stress on the anchor rod exceeds the specified limit,posing high construction risks.After the reinforcement of the tunnel surrounding rock,both the deformation of the surrounding rock and the stress on the initial support decrease significantly during the construction process,ensuring the safety of the tunnel construction.

Abstract:Sichuan Province is dominated by a hilly landform,with poor farming conditions.In recent years,the problem of abandoned cultivated land has become increasingly serious.At present,the remote sensing method is one of the main methods to extract abandoned farmland,and there is little research on high-precision extraction of abandoned farmland in hilly areas by the remote sensing method.Taking Xiangfu Town,Ziyang as an example,this paper uses Sentinel 2 and Google HD satellite remote sensing images as data sources,combined with texture and spectral characteristics,to monitor the abandoned cultivated land in the study area from 2021 to 2022,and adopts the NDVI threshold method combined with extraction accuracy correction combined with Modis interannual NDVI transformation.The results show that the extraction accuracy is as high as 92％.

Abstract:The span of the main bridge is 88 m+152 m+88 m,and the load-bearing capacity and working state of the bridge are evaluated by load test.The results show that under the design load,the deflection of the bridge and the check coefficient of the strain of the control section obtained from the static load test meet the requirements of the code,and the bridge is in the elastic range;The vertical frequency of the bridge is also slightly larger than the theoretical value;The bridge is in good working condition.The test provides necessary technical parameters for the safe operation of Moyangjiang Bridge in the future,and also provides important technical data for the appraisal of bridges of the same type.

Abstract:Urban road cleaning operations are mostly done by manual or traditional driving cleaning vehicles,which face the problems of high labor intensity,high personnel cost,and low operation efficiency.This paper studies and designs an intelligent classification trolley which is suitable for urban road cleaning and garbage classification and recovery.The trolley mainly includes infrared sensing ranging device,DC motor,cleaning module,intelligent construction site,and garbage collection and classification mechanism,so as to realize path planning and garbage classification in urban road driving.

Abstract:A project is built in a valley zone,which is easily affected by heavy rain mountain flood.Engineering measures should be taken in the planning and design stage to channel mountain flood and reduce the flood risk after the project construction.This paper uses ArcGIS software to conduct hydrological analysis,determine the project scope,catchment area and discharge affected by mountain flood,and design the location and size of flood interception ditch Based on InfoWorks ICM software,two flood risk assessment models were constructed in current condition and planning condition to analyze flood risk before and after project construction.The results show that the flood risk level within the project scope is relatively high,but the flood risk level within the project scope is obviously reduced by the design of flood cut-off ditch to divert the mountain flood to the downstream natural gully.

Abstract:The article aims to study the development trends of artificial intelligence interaction technology in the field of architecture,promoting the construction industry towards a more intelligent direction.Through deductive reasoning and literature review methods,the article conducts an in-depth study of the current state of artificial intelligence interaction technology and discusses its relationship with the field of architecture.The research is designed to achieve higher quality smart buildings and,through the analysis of intelligent interaction technology,to foster a more harmonious interaction between humans and nature,achieving an intelligent integration between people,nature,and architecture.

Abstract:To ensure the safety of urban rail transit operations,comprehensive safety risk assessment and management are essential.By establishing a robust safety risk index system and monitoring and evaluating various indicators,potential safety hazards can be identified and resolved promptly,enhancing the safety level of urban rail transit,reducing the probability of accidents,and protecting the life and property safety of passengers and staff.The paper analyzes the safety risk factors of urban rail transit operations from four dimensions:personnel,facilities and equipment,environment,and management,and constructs a safety evaluation index system for urban rail transit that includes three levels.It also discusses the weight and impact degree of each indicator,aiming to provide a reference for the safe operation of urban rail transit.

Abstract:In view of the advantages of current unmanned aerial vehicle(UAV)aerial surveying technology in surveying projects,this study mainly elaborates on the technical process of UAV in municipal engineering topographic map measurement.Combining with the urban and rural water supply renovation project in a certain city,using drones to quickly collect data in the project area,and based on this,constructing a three-dimensional real-life model.By analyzing the accuracy of the model through actual measurement data,the research results show that the 3D model of the real scene produced by the oblique images collected by the drone has a certain degree of reliable accuracy,and the diversified data provided can provide technical support for the planning and design of subsequent municipal engineering.

Abstract:The data center is an important infrastructure for data operation.In recent years,data information has grown exponentially,and equipment power consumption is enormous.Therefore,diesel generator sets need to be used as backup power sources to switch between mains power and backup power,ensuring the normal operation of data center services.The paper takes a data center renovation project as an example,focusing on the switching control logic of its mains power supply and backup power supply.The analysis is conducted from the aspects of diesel generator parallel system,mains power switching PLC control system,mains power supply and diesel generator system switching control logic,switching control logic between mains high and low voltage power supply,interlocking requirements,etc.It is expected to provide a reference for similar projects.

Abstract:In the inspection phase of water conservancy and hydropower engineering,underwater robots have significant advantages in safety management and reinforcement,and they have great potential for application development.The article briefly describes the application background and basic principles of underwater robots in the inspection of water conservancy and hydropower engineering.Starting from the perspectives of motion control,defect recognition,and defect positioning,it analyzes the application technology of underwater robots in the inspection of water conservancy and hydropower engineering.It discusses the current status of underwater robots in various fields,introduces their development trends,and provides a reference for the development of water conservancy and hydropower engineering.

Abstract:The study analyzes the potential risks that may arise from the rise of groundwater level in the South to North Water Diversion Ring Road Water Transfer Tunnel Project in Beijing.Considering the impact of groundwater level changes on tunnel stability,the main risk factors were identified through geological exploration and hydrogeological analysis.By combining the tomographic analysis method and fuzzy comprehensive evaluation method,a comprehensive risk comprehensive evaluation index system was constructed,and a corresponding evaluation model was established.This model aims to quantify risk factors and evaluate the safety status of tunnel structures.A set of intelligent management and control measures has been proposed to enhance the project's ability to respond to risks.The effectiveness of the established evaluation model and prevention and control measures was verified through case studies,providing a reference for risk management of similar underground water conveyance projects.

Abstract:In this paper,a two-stage Bi-ConvLSTM network based on grouping(GDBN)is proposed,which can make full use of the spatial and spectral information of images,and effectively relieve the computational burden and protect the spectral information by using the grouping strategy based on band units.At different stages of the encoder,the shallow information extraction module and the depth feature extraction module can extract different levels of information.The shallow information extraction module can fully capture the shallow feature information of different scales,and the depth feature extraction module can capture the high-frequency feature information of the image.The paper also introduces channel attention mechanism to enhance the network's ability to organize features,and conducts a large number of experiments on natural data set cave,and the effect is generally better than the current mainstream deep learning methods.

Abstract:The paper explores the development of AIops intelligent operation and maintenance,the research results in related fields are sorted out,including KPI anomaly detection,log anomaly detection,and root cause analysis.In addition,research priorities and issues to be considered in the development of intelligent operation and maintenance are discussed,covering aspects such as algorithm landing and future research directions.

Abstract:In this paper,a land use classification network(MSNet)for multispectral remote sensing images is proposed,which has the characteristics of visible light band and infrared band.Based on ResNet-50 as the backbone network,different stages of the network are optimized and improved.Comparing MSNet with classical image segmentation model UNet,the results show that MSNet is better,and the evaluation indexes of accuracy,F1 score and recall rate are all in the range of(0.8,1).Experiments show that MSNet can make full use of multispectral features and improve the classification accuracy of remote sensing images.

Abstract:As a transportation hub building with large space,the indoor environment construction and environmental control standards of terminal building are quite different from those of traditional public buildings,and the energy consumption characteristics and energy saving potential have important research value.Combining with the environmental requirements and operation status of airport buildings,this paper analyzes the spatial characteristics of functional areas of terminal buildings,explains the mapping relationship between environmental perception and control parameters of terminal buildings,summarizes the optimal control strategy of energy conservation of terminal buildings,and obtains the system architecture and platform design of energy management system of terminal buildings,which provides a reference for the design,planning and operation regulation of airport buildings.

Abstract:According to the distribution of GPS points of freight cars,this paper establishes a convergence model of cluster number of GPS points of freight cars by means of cluster analysis and based on the economic benefit principle of covering the most GPS points and least cluster centers,which can preliminarily judge the suitable position for building freight hubs and provide a theoretical method based on big data for the scientific and rational layout of freight hubs.Taking Zhaoqing City,Guangdong Province as an example,the preliminary location of freight hub is obtained,and the results are consistent with the current planning and policies,which verifies the rationality and reliability of the model.

Abstract:Unbalanced flow of people exists in some specific places.In order to better solve the management problem of peak and trough flow of people in different time periods,Kashgar Airport has introduced an intelligent queuing system.The system applies advanced information technologies such as face capture,video detection,and gate control to integrate the system.Through reasonable queuing strategy,the rapid matching of traffic modes and the optimal allocation of resources in different scenes are realized.

Abstract:Ventilation and smoke exhaust system in rail transit engineering is the safety guarantee of normal operation of rail transit.This paper takes a rail transit project in Suzhou as an example,through checking calculation of equipment selection and analysis of air ducts made of different materials,chooses appropriate air duct materials and installation forms,and solves the problems of air duct space arrangement and meeting fire prevention requirements in rail transit projects.