已通车高速公路软基沉降病害侧向辐射注浆处治技术

针对江苏省沿海已通车高速公路试验段(K865+220—K865+280)存在的沉降病害,提出了既有高速公路运用侧向辐射注浆法进行沉降病害处治的设计方法和施工工艺。通过现场注浆试验,确定注浆过程控制参数,通过理论分析和现场沉降观测进行了效果评价,最后对其经济性进行了分析。实践表明,此方法能有效控制既有高速公路沉降病害,且具有施工简便、振动小、不影响正常通车等优点。     

办公建筑高大空间的照明设计方案研究

企业办公建筑早已突破了传统的房屋构造形式,更趋向于多层通高的设计理念,以彰显企业雄厚的实力和不可亵渎的气势。本文针对办公建筑高大空间的照明设计方案进行了研究分析,以加强对其主要影响因素的控制。     

建筑工程环保节能技术的应用解析

笔者根据自身的实践经验,结合对建筑工程环保节能技术的调研,对建筑工程中的环保节能技术进行了阐述,对环保节能在建筑工程中的施工现状进行了详细地分析,并对建筑工程环保节能技术的优化措施进行了深入地研究与探讨。     

A performance-based approach to project assignment and performance evaluation

Project assignment and performance evaluation have been addressed as two important and separate research issues in project management. This paper develops a new performance-based approach for integrating the project assignment and the performance evaluation processes in a project-based organization. An objective-oriented preference-based assignment process is developed to assign a project to a project manager. An optimal project assignment model is developed to maximize the total weighted contribution value of all new projects to the organizational objectives. An efficiency-based evaluation process is developed using data envelopment analysis to measure the relative performance efficiency of the completed projects and of the project managers. The approach provides a proactive mechanism for facilitating objective-focused management of projects. The outcomes of an empirical study conducted provide managerial insights in assigning projects to project managers and in evaluating the performance efficiency of both projects and project managers.     

Potential source contributions and risk assessment of PAHs in sediments from Taihu Lake, China: comparison of three receptor models

In this work, three receptor models (Principal Component Analysis-Multiple Linear Regression (PCA-MLR) model, Unmix model and Positive Matrix Factorization (PMF) model) were employed to investigate potential source apportionment of PAHs in sediments from Taihu Lake, China. A total of 15 priority PAHs in 29 sediments from Taihu Lake were measured, with ∑PAHs (sum of 15 PAHs) concentrations ranging from 209 to 1003 ng g⁻¹ dw. Source apportionment results derived from three different models were similar, indicating that the highest contribution to ∑PAHs was from vehicular emission (53.6-54.3%), followed by coal combustion (23.8-28.8%) and wood combustion (11.9-16.0%). The contribution of mixed wood and coal combustion source identified by PCA-MLR was 41.3%. For the first time the risk assessment for each identified source category was quantitatively calculated by combining the BaP equivalents (BaPE) values with estimated source contributions. The results showed that vehicular emission posed the highest toxic risk, with BaPE values of 26.9-31.5 ng g⁻¹ dw, and the BaPE values for coal combustion and wood combustion were 6.56-15.6 ng g⁻¹ dw and 2.94-6.11 ng g⁻¹ dw, respectively. The distributions of contribution and BaPE for each identified source category were studied as well, and showed similar trends among the sampling sites, for each source category.     

我国枢纽机场陆侧交通组织的特点与问题分析

机场陆侧交通是机场和城市联系的纽带。我国枢纽机场陆侧公路交通出现拥堵的同时,轨道交通的引入带来了新的契机和挑战。该文从我国枢纽机场陆侧交通组织的现状和形势出发,对陆侧交通组织的特点和趋势进行了总结,并分析了陆侧交通组织中存在的问题,提出了未来发展我国枢纽机场陆侧交通的建议。     

City Quarry Landscape Designs:A Case Study of Beishan Park Main Entrace in Wenling City

城市化的高速进程,易造成岩仓生态破坏严重、景现形象差及安全隐患的问题.温岭市北山公园主入口设计方案并没有简单地采用传统的覆绿方式,而是运用现代规划设计理念及方法,力图保留场所的特征,延续空间的记忆.空间设计简洁纯净、富有强烈的设计感与时代感,与原有的北山地区岩仓的朴拙粗犷形成强烈的对比,在这种对比之中寻求和谐感.方案将公园主入口共分为5个详细设计区块,分别为自然花境区、瀑布水景区、滨水广场区、儿童游戏区、休闲广场区.考虑到不同人群的需求,塑造城市多元化的开放性空间,突出城市休闲的功能.     

加拿大公众参与规划及其启示

对加拿大公众参与的理论基础、价值理念、发展历程和主要技术手段进行了总结.接着,以新斯科舍省“志愿规划”和哈利法克斯地区“社区远景规划”为例,分析了加拿大公众参与规划的典型模式.最后,针对我国公众参与规划现状,提出了加拿大公众参与理论和实践对我国的启示与借鉴.     

农村住宅建设标准体系研究

针对我国社会主义新农村建设这一主题,分析了我国农村住宅建设现状,介绍了工程建设标准体系的结构形式,研究了农村住宅建设标准体系的构建方法。研究和建立农村住宅建设标准体系,为确定农村住宅建设标准的编制计划提供依据,将对我国村镇建设的发展起到指导和技术管理作用。     

火灾后砂浆抗压强度的试验研究

通过28组126个砂浆试件不同受火时间后抗压强度的试验,研究了砂浆抗压强度随温度升高的变化规律。研究表明,不同种类不同强度砌筑砂浆抗压强度下降程度基本相近。按照ISO 834受火45min时,砂浆抗压强度下降至常温时的24.1%～30.4%,低于CECS 252∶2009《火灾后建筑结构鉴定标准》的相关数值。