岩土边坡稳定性的遗传算法分析

非线性优化方法主要缺陷在于当边坡土层为非均质复杂条件时,无法保证搜索到安全系数的全局最小解,而只能搜索到局部极小解。基于遗传算法,建立了搜索岩土边坡稳定性分析最小安全系数和滑移面中心坐标与半径的数值方法。问题的可行解在变量搜索区间内搜索,包括滑弧的圆心坐标和半径。数值模拟结果表明,遗传算法搜索到的边坡稳定最小安全系数与理论解是一致的。     

桩锚支护在基坑工程中的应用

随着经济的快速发展,各种建筑大批兴建,基坑支护方式面临严峻挑战,传统的基坑支护方式需要不断革新和发展。该文针对某基坑工程,采用较实用桩锚支护技术,达到了安全、适用和经济的目的。     

基于工作过程的高职《电子商务基础及应用》课程改革研究

文章首先指出了《电子商务基础及应用》课程性质和培养目标，接着分析了传统该课程教学中存在问题，并针对这些问题提出了以工作过程为导向，以项目为载体，以能力培养为核心，以职业能力和职业素养为评价体系的课改实施模式，最后总结了这种教改实施的意义。     

THE INTELLECTUAL FOUNDATION OF THE JOURNAL OF BUSINESS LOGISTICS AND ITS EVOLUTION BETWEEN 1978 AND 2007

Many logistics and supply chain management researchers have so far studied the nature of logistics and supply chain management research in terms of its domain and scope, its epistemological assumptions, and its evolution. However, the knowledge repository on which the scientific research community draws, that is, its intellectual foundation, has not yet been studied. Studying the intellectual foundation of research provides an unbiased and comprehensive picture of the development, dissemination, and utilization of its knowledge. In this article, we identify the most contributive works—in terms of citations received—that have been used in 497 articles published in the Journal of Business Logistics (JBL) between 1978 and 2007. By means of citation and co‐citation analysis, the intellectual structure of research in JBL is revealed and transformations therein are explored. Overall, the most frequently‐cited literature can be classified into six themes: physical distribution; inventory models; customer service; interorganizational relationships; competitive strategy; and empirical methodologies for socio‐scientific research. Furthermore, we determined a development in citation frequencies to these themes: literature related to physical distribution and inventory management declined over the three decades under study, whereas literature related to competitive strategy and empirical methods gained in importance. This development indicates a shift from an operational focus to a prioritization of managerial issues. Moreover, our results demonstrate a shift towards more relational and institutional research in logistics (management), which has been typically linked with the notion of supply chain management since the 1990's.     

盾构的数值仿真分析

随着城市经济的发展,地铁等地下工程的施工越来越多,盾构施工使周边建筑物及管线的基础应力得到释放,或由于附加应力的影响引起地基下沉或隆起,这种变形对地面建筑物影响程度与有效间距、施工范围与建筑物间的土质情况等有关。     

浅析不良地基处理方法

在长期的建筑物施工过程中,经常会遇见软弱不良的地基。这种地基会导致建筑物沉降量过大,沉降时间过久且具有很大的不均匀性。因此在建筑施工过程中必须重视对不良软弱地基的加固和处理,以避免建筑物产生不均匀沉降,保证工程质量和建筑物的使用寿命。     

关于科学地设置基础课程为专业课程服务的几点做法

结合专业需要科学地设置基础课程是建立课程体系必要条件,是培养合格高职高专人才的重要途径。     

谈谈粉煤灰在公路工程中的应用与施工工艺

本文就粉煤灰在公路工程施工建设中的应用与施工工艺做一下分析总结。     

高层结构施工应注意的几个问题

针对铜陵地区特殊的地质条件,文章就高层建筑地下室地基土方施工应注意的问题,以及本地区高层建筑施工中混凝土施工缝留设、地下室混凝土壁板抗渗、钢筋施工、混凝土界面处理等方面常见的问题及处理措施进行了分析。     

灰岩地区桩底地下暗河连通溶洞综合处理技术

文章以广（州）梧（州）高速公路河口至双凤段大庆桥的工程为例，总结了2条桩底存在相互连通的地下暗河的情况下，对其进行综合加固处理的施工经验，并介绍了灰岩地区桩底暗河的探查、机理分析及具体处理措施。