A Discussion on Innovative Methods for Green Engineering Management in Construction Engineering

With the rapid development of society,the construction industry has made significant progress.However,as environmental issues intensify,many construction projects contribute to pollution.In this context,applying green project management methods in construction can enhance energy conservation and environmental protection,reduce energy consumption and costs,and minimize environmental damage,promoting balanced development between the environment and the economy.Therefore,integrating green construction concepts into current construction projects is essential.Based on project requirements and construction activities,effective green project management strategies should be developed to improve management standards and promote more efficient green construction.This paper analyzes green project management in construction engineering and offers recommendations for reference.

Research and practice on system engineering management of a mobile payment project

The popularization of the mobile internet has given rise to demand for flexible and convenient payment methods. For China, it is necessary to keep pace with or even lead the trend of innovation and development in the age of mobile payment. From the perspective of systems engineering, this paper introduces research and implementation of China Union Pay's mobile payment project. The general requirements and core engineering problems of the mobile payment project are summarized based on analyses of the characteristics and engineering difficulties of this project. Integration of innovative technologies is introduced to resolve the contradiction between ease-of-use and security. A rapid iterative development process is adopted to improve the product release efficiency as well as the users' experience. The launch of the mobile payment project also opens the window to coordinating and upgrading the whole payment industry chains.

Research on Intelligent Application of Construction Project Management Method in the New Era

Intelligence has penetrated all walks of life with the rapid development of information technology.In the field of construction management,the application of intelligent technology is also increasingly extensive.Intelligent management methods can not only improve the efficiency and quality of construction projects but also reduce costs and waste of resources.This paper focuses on the intelligent application of construction project management methods in the new era.By analyzing the problems existing in the current construction management,the application of intelligent technology in every link of project management is expounded,including construction site management,material and equipment management,schedule control,quality supervision,and so on.At the same time,the paper also puts forward relevant suggestions on the popularization and application of intelligent management methods,which provides a reference for the innovative development of construction project management.

Application of Time and Space Thinking in Civil Engineering

Time and Space Thinking that is composed of time and space thinking is brought up in civil engineering. This paper makes a detailed analysis on application and role of time and space thinking in knowledge system and learning method of civil engineering and put forward time and space thinking to be similar with philosophical view of time and space. Time and space thinking is a scientific method, therefore, it is suggested to make students active in having such idea and strengthen students＇ understanding on time and space thinking, which will helping students recognize knowledge system and stimulate innovative abilities.

CCSD Well Logging Engineering Program

This paper introduces briefly the tasks and characteristics of China Continent Science Drilling (CCSD) Well Logging Engineering, the logging methods measured with CCSD, the quality control of original logging information, the logging plan of CCSD, the logging engineering management of CCSD, the logging interpretation and the results and reports made with CCSD.

Analysis of Effective Optimization Methods for Building Construction Technology Management

During the construction process of the construction project,the construction technology management work can improve the overall quality of the project construction.In the context of increasingly fierce competition in the construction market,construction enterprises should strengthen the management of construction technology,enhance their technical level and market competitiveness,and promote the development of the construction market[1].The paper mainly analyzes the optimization methods of build-Keywords:ing construction technology management.

Management Method and Intelligent Technology Analysis of Construction Management

The construction industry is a critical lifeline for China’s national economy’s development.The growth of the building business has piqued the interest of a variety of industries.To ensure the quality of construction engineering,it is necessary to improve the technical level of construction engineering management by strengthening construction engineering management through various effective methods,following the development of The Times,and strengthening the introduction of intelligent technology.The author investigates and analyses the importance of incorporating intelligent technology into construction project management,and proposes effective strategies for incorporating intelligent technology into construction project management in the hopes of improving the quality of construction project management.

Application of Earned Value Method in Project Cost Management and Schedule Management

At present,with the rapid development of China's economy,the development of the construction industry has made a new breakthrough.Project management requires the construction industry to continuously play its role and value in improving the ability of project management.Earned value method,which is an important way in the field of project management,enables whole project management to rise to a new height.The specific principle of earned value method will be elaborated by fully introducing the specific role of earned value method in engineering projects to provide a reference and basis for practitioners to improve their management ability.

基于最小二乘法的上海市临床工程人员数量配置影响因素分析

目的分析临床工程人员数量配置的影响因素,并构建临床工程人员数量配置的数学模型。方法基于《2021年上海市医疗器械管理质控中心年度基线调查表》,应用Stata 15.0软件对数据进行整理分析,探究是否成立采购中心、业务是否外包、医院床位数、医院等级和医疗设备总资产等与临床工程人员数量的统计学关系,使用最小二乘法构建多元回归模型,并对模型进行后验分析。结果Spearman相关分析结果显示,临床工程人员数量与医院床位数(r=0.7665,P<0.05)、医院等级(r=0.5942,P<0.05)、业务是否外包(r=-0.2924,P<0.05)有相关性,决定系数R2=0.6229,模型的拟合度较好。在后验分析中,模型不存在多重共线性(VIF=1.74<5),无明显异常值(D_(max)=0.394<0.5),残差不存在自相关(d=1.936>du,du=1.73),且残差符合正态分布(P=0.199>0.05),满足方差齐性,因此该多元回归模型具有统计学意义。结论影响上海市临床工程人员数量的因素有医院床位数、医院等级和业务是否外包3个变量,其中医院床位数和医院等级与临床工程人员数量呈正相关关系,而业务是否外包与临床工程人员数量呈负相关关系。本研究构建的回归模型可为各医疗机构的临床工程人员数量配置提供参考。

市政道路施工线形及细部定位测设方法论析

市政道路工程施工涉及绝大多数工程部位或部件的空间定位,需要以满足相应精度要求为前提来选定具体测设方法。该文首先阐述了测量控制流程、基本测设方法及其注意要点,然后分析了测设内业准备、现状调查测量、结构施工测量、管网施工测量和路基路面施工测量这五方面的诸多测设方法设计及实施细则,最后总结了施工线形及细部定位测设方法的关键设计思路,即线形控制为目标基础、细部计算有分析验证、方法集成及灵活应用。

基于多层次综合评价法的河道治理工程综合效益评价

由于海南州存在水源分散、保证率低、保护难度大的问题,研究提出一种评价指标体系分析河道治理工程综合效益,从社会效果、生态效果和经济效果3个方面对河道治理工程进行全面分析,并结合层次分析法和模糊综合评价法分析其影响因素。结果表明,该工程生态效益的优秀评价占比最高,达到78.29%。该工程提升经济和生态效益方面的表现比较好,综合效果显著,研究结果可为类似河道治理工程提供参考与借鉴。

Shift control method for the local time at descendi ngnode based on sun-synchronous orbit satellite

This article analyzes the shift factors of the descending node local time for sun-synchronous satellites and proposes a shift control method to keep the local time shift within an allowance range. It is found that the satellite orbit design and the orbit injection deviation are the causes for the initial shift velocity, whereas the atmospheric drag and the sun gravitational perturbation produce the shift acceleration. To deal with these shift factors, a shift control method is put forward, through such methods as orbit variation design, orbit altitude, and inclination keeping control. The simulation experiment and practical application have proved the effectiveness of this control method.

高含水老油田化学驱综合治理新方法及工程实践路径

针对胜利高含水老油田化学驱在科学、技术、管理、工程四个角度面临的开发矛盾,以渤76块为典型单元,在工程实践中进行具体对策分析,构建了“适、专、快、集”的老油田化学驱综合治理新方法。“适”指在老油田科学开发方式转化上,构建不同油藏类型老油田化学驱最佳介入时机模型,提出了在含水率相对较低的阶段,是适合化学驱的有利时机,高效开发方式需“适”介入。“专”指在老油田开发技术应用上,改变传统聚合物先溶解后注入的开发思路,研制可控相转化聚合物,使聚合物先注入后溶解,解决炮眼剪切降解的难题,提高油水流度控制能力,老油田开发矛盾需“专”治理。“快”指在老油田综合管理模式上,改变传统方式,即矿场提问题、研究院设计方案、化工厂生产驱油剂的“串联”管理模式,提出充分发挥矿场、研究院、生产厂三方优势的“并联”管理模式,形成针对单一油藏的产品工业化工艺包以及产业化落地方案,老油田开发技术实现“快”转化。“集”指在老油田工程应用实践上,打破老油田化学驱地面大规模建站的工程工艺模式,采用集约化撬装配注设备,实现老油田化学驱的集约快速配注,老油田工程工艺实现“集”应用。运用上述方法,在胜利油田渤76块综合含水率上升初期,实施由水驱转为可控相转化聚合物驱,实施后一年即见到明显的降水增油效果,单井日产油水平增加8.6t/d,综合含水率降低3.1%,验证了综合治理模式的可行性,为高含水老油田化学驱高效开发提供了有效路径。

科技人才评价研究综述

加强科技人才评价研究,有助于发挥“评价”的“指挥棒”和“风向标”作用,充分激发科技人才的创新创造活力,为加快实现高水平科技自立自强和建成科技强国的宏伟目标提供有力的人才支撑。综述了科技人才评价对象的研究现状,从专家定性评价法、定量指标评价法以及综合评价法3个方面对科技人才评价方法进行述评,重点介绍了层次分析法、熵值法、因子分析法、基于熵权的TOPSIS法、模糊综合评价法,对科技人才评价常见指标体系进行了梳理总结,展望了科技人才评价的发展趋势,结合当前形势与政策,提出今后应进一步细化评价对象分类研究,注重科技人才评价指标的价值导向和数字化技术在科技人才评价中的深化应用。

隧道单向大间距点式排烟设计方法研究

排烟口间距≤60 m、开启数量不少于3处的重点排烟模式已在隧道中广泛应用。针对其存在因间距小而排烟口数量多、漏风量大问题,提出了火源上游侧纵向通风+下游侧精准开启1处排烟口(含多个排烟阀)的新型单向大间距点式排烟模式。考虑参数间相互关联性,基于特殊消防设计思路,构建了单向大间距点式排烟模式有效性评估模型,并提出了优化设计方法。依托实际隧道工程,通过数值模拟对新型点式排烟模式进行了研究,探讨了不同排烟阀个数、纵向风速、排烟口间距及坡度对烟控效果的影响,结果表明:考虑隧道火灾最不利情况火源功率50 MW下,推荐纵向风速3.67 m/s、1处排烟口(含12个排烟阀)、排烟口间距300 m的通风排烟方案。并采用缩尺寸模型试验,验证了新型点式排烟设计的合理性。

基于改进层次分析法的航天器量化风险分析方法

航天器研制风险的量化分析与评估能够有效提高资源投入和风险控制措施的精准性。为满足当前航天器项目对风险量化管理的要求,航天器风险识别与控制应覆盖研制全流程。文章采用改进层次(AHP)-模糊综合评价法,给出了风险分析与评估的方法及流程,并以遥感领域发射卫星为例,基于项目特点建立了覆盖技术、费用、质量、管理四个方面的风险要素集,运用专家打分得到风险评价隶属度矩阵,对风险等级进行科学量化,对项目间、项目内部风险要素进行分析,给出风险控制重点项目。在风险因素增多、项目数量上升的情况下,风险量化分析方法能够在比较项目间风险的严重程度、合理分配资源方面,为管理者提供更好的决策支撑。

水平条分法下浅埋小净距隧道围岩压力计算方法

将水平条分法引入小净距隧道计算中,对岩土体的黏聚力与内摩擦角作为独立因素考虑,通过公式推导准确得出先、后行洞内侧破裂面交点位置,进而推导出静力工况下浅埋小净距隧道围岩压力的解析解.将结果与规范计算值和工程实测值进行对比分析,验证本研究推导公式的准确性.结果表明,与规范法相比,本方法在理论上更为合理,也更符合工程实际,能更准确地计算隧道围岩压力.当隧道净距大于1.0倍且小于1.5倍单洞开挖跨度时,推导得出的小净距隧道围岩压力计算公式结果较为精确,且适用范围更广.小净距隧道先行洞和后行洞的围岩压力分布具有一定规律,后行洞内侧竖向围岩压力大于先行洞,水平侧压力小于先行洞.同时,单一隧道内侧竖向围岩压力大于外侧,外侧水平侧压力大于内侧.

理工科实验室安全风险预警与分级方法研究

文章结合理工科实验室的特点,进行理工科实验室危险源辨识与危险性分析,采用综合集成法构建理工科实验室安全风险预警指标体系,合理设计指标权重,并以某一流高校的理工科实验室为例,探索了安全风险分级管控措施。此项研究可为高校优化理工科实验室安全管理提供参考。

基于CRITIC和云模型的航天标准化师评价方法研究

针对目前航天标准化师评价方法存在的问题,建立了基于CRITIC和云模型的评价模型。首先,采用文献成熟的评价指标构建了航天标准化师评价指标体系;其次,用CRITIC法对专家评分进行处理,并确定了评价指标的权重;然后,建立了云模型评价方法对航天标准化师进行评价;最后,对模型进行了实例分析。结果表明:该模型是一种合理科学的评价优选模型,能够针对航天标准化师的评价工作取得合理和有效的结果。

带井电法在城市障碍区间探测中的应用研究

城市地下空间探测是当前浅部地球物理勘探的研究热点,城市中复杂的障碍区间给地下空间探测施工带来了极大的困难。针对城市岩土工程勘察中常见的障碍区间探测问题,本文基于带井直流电阻率法,采用数值模拟与应用试验,通过设置不同的观测数据密度,对比分析不同障碍区间宽度条件下的反演效果,开展了方法的可行性研究,分析了方法的适用范围。结果表明:带井电法的探测精度与障碍区间的跨度范围、目标深度及钻井深度等均相关,跨度越大、目标深度越大,提高探测精度所需的钻井深度越大。当障碍区间跨度超过工程钻探相关规范要求的间距时,采用带井电法可为地下空间勘察提供依据。