煤代油工程污水处理工艺的选择

文章通过分析巴陵分公司煤代油工程的污水排放特性及技术条件,探讨了污水处理工艺的选择。     

城市广场地下空间的开发利用模式

讨论了城市中心广场、站前广场、城市轴线节点处广场和居住区内部广场的开发利用模式 ,分析了开发利用地下空间的可行性和意义所在     

Experience and the unexpected: risk and mitigation issues for operating underground storage silos for coal-fired power plant

Observed autoignition events and extinguishing the resulting smouldering fires in an underground storage system of a coal-fired power plant have provided insight into the array of contributing variables, and some experience on quantifying the risk with alternative scenarios of event initiation, progress and potential mitigation. Although the first attempts to quantify the risk suggest high sensitivity to the sequence of action taken after fire alarm, and no similar storage sites really exist, some recommended preventive, corrective and other mitigating activities can be at least partly defined and improved by using the cumulative experience and parallel efforts in other closed or underground storage sites. However, there are also so-called black (or at least grey) swans: unexpected events for which the facility may be poorly prepared for. In the case of the underground storage silos, such an event was experienced when incoming cold coal during a harsh winter season froze the sewer system that normally protects the stored coal from seepage water. With blocked normal bypass, the seepage water found its way to the coal silos and created large clumps of icy coal that blocked the coal conveyors. Although freezing weather is not unusual at high-latitude power plants, the common methods to combat freezing of coal are mainly useful for open storage sites and above-ground transport. Options for mitigation are discussed, as well as the event chain leading to an event that had never previously occurred. The case is discussed from the point of view of options to prepare for rare or unforeseen events.     

双轮铣槽机在深圳地铁地下连续墙施工中的应用

本文通过双轮铣在深圳地铁福邻站地下连续墙施工中的应用,阐述了其设备的施工原理、施工工艺、施工工效以及其主要的技术要点,并在此基础上初步探讨了液压双轮铣在深圳地铁施工的可行性和延续性。     

浅谈煤制甲醇项目的煤气化技术选择

石油是一种不可再生资源,必须要寻求新能源的制造方法,其中,甲醇的大规模生产也受到了各个国家有关部门的高度重视。本文主要从原料、产品与投资方面几个方面对多喷嘴对置式水煤浆气化技术、Shell技术、BGL煤熔渣气化工艺进行分析,得出最优的生产技术。     

地下连续墙在地铁站深基坑支护中的应用

文章介绍了在天津市地铁大厦暨地铁海光寺站工程中,深基坑支护采用地下连续墙工程的特点、施工技术和应用情况,为城市建筑物密集区的超高层建筑深基坑支护及施工提供了经验。     

壳牌煤气化运行总结

文章介绍了气化装置的运行现状,解决了粉煤输送载气由N2到CO2的平稳切换和合成气冷却器积灰难题,对装置运行中出现的一些常见问题进行分析并提出解决措施。     

地下空间开发视角下的开发区土地集约利用——以皖江城市带为例

以地下空间开发为视角,用文献资料法、实证法研究了开发区土地集约利用的创新方式。从工程技术和技术经济的角度验证了开发区地下空间开发的可行性。认为开发区地下空间开发的主要障碍因素是产权归属不清、产权定价无据及缺乏规划编制;应从确权、定价、规划、融资、财税等方面着手加快促进开发区地下空间的开发。     

皇姑屯地铁车站顶纵梁模板支架设计

地铁对城市的发展起到了很好的推动作用,地铁工程的施工已经逐渐完善,采用暗挖法(洞桩法)开挖地铁车站的顶纵梁施工技术也日益成熟.随着暗挖工程顶纵梁模板支架应用越来越广泛,对模板支架施工安全、经济可靠提出了更高的要求.本文以沈阳地铁皇姑屯地铁站的施工为例,对地铁站的顶纵梁模板支架施工做了详细分析.通过工程实际证明,暗挖工程...     

从制度层面加强我国地下空间资源管理

制度层面上,我国地下空间开发管理立法缺失,缺乏专门具体的地下空间资源开发管理机构,缺乏整体规划和长远战略。建议：一是建立健全我国地下空间资源开发管理的法律体系,从法律上明确地下空间权,建立我国地下空间开发管理的专门法律,完善地方地下空间资源开发管理的法规体系;二是建立明确具体的地下空间开发专门管理机构,在该机构内明确各个职能部门和下属机构（单位）的管辖范围和执法力度,针对各个地下空间的分支领域进行具体明确的管理;三是对城市地下空间资源的总量、需求量、已开发量以及保留待开发量等数值进行综合研究分析,结合地方发展特色,制定综合的城市长远发展规划。