城市防洪堤成险分析及消险措施

齐齐哈尔市城市防洪堤堤体、堤基的岩性组成比较复杂,险工弱段受诸多因素的控制和影响。文章在论述堤体堤基岩性组成的基础上,对险工弱段成险因素进行分析,提出预防和消险措施。

城市防洪堤成险分析及消险措施

一、前言齐齐哈尔市城市防洪堤,历史上屡受嫩江洪水灾害,城市防洪堤多次溃堤成灾。1998年特大洪水城防堤更是险情环生，抗洪抢险不仅耗费大量的资金，而且严重扰乱社会秩序，因此加强城防堤工程建设乃当务之急。

抗洪抢险措施及效果

结合“９８”抗洪抢险实例，对多种险情作了具体分析，通过汛后调查，对抗洪抢险消险措施和效果进行了总结，为今后进一步做好防洪消险工作提供了经验。

齐齐哈尔市城市防洪堤险工弱段成险因素分析

在论述堤体、堤基岩性组成的基础上,对险工弱段成险因素进行了分析,提出预防和消险措施。

城市桥梁垮塌事故的原因分析与对策建议

近年来,城市桥梁坍塌事故屡屡发生,采取有效措施,从根本上遏止,已十分迫切。造成垮塌事故,主要原因有人为因素、设计规范标准偏低、设计存在问题、施工质量存在缺陷、维护管理不到位、建设求快、事故自查和消险措施缺乏科学的工程分析等方面,并介绍了南京市安全普查的情况。最后从建立严格的桥梁安全问责机制、加强新建桥梁中质量安全监管和维护管理工作、完善科学消险和维护管理技术规范等角度提出了对策建议。

Risk Analysis for Mega Shopping Mall Projects in Egypt

Mega shopping mall projects have seen dramatic growth and great development in recent years in Egypt. Many new mega shopping mall projects are under construction and expecting to start working in the few coming years. In the absence of researches studying the Egyptian mega shopping mall projects, this study tries to highlight the most critical risks that face these projects and the associated most effective response methods to be employed. The scope covers the analysis from different perspectives by including owners/developers, designers, consultants, project managers, and contractors that have previous experience in large-scale projects such as shopping mall projects. In this study, 30 construction project risks are classified into six main categories according to their type and 150 risk mitigation/elimination measures are introduced to overcome the impact of risks under each of these risk categories. The results reveal that the main risk category that faces the mega shopping mall projects in Egypt is the one including the financial risk factors. The most critical risk factor that faces these projects is the financial ability of the client. These results are similar to findings by previous researches conducted for large projects in other countries.