共查询到18条相似文献,搜索用时 62 毫秒
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C45高性能混凝土在码头工程中的应用 总被引:1,自引:0,他引:1
简述海工混凝土结构耐久性差的原因,结合工程实例及寿命估算,提出采用掺加微硅粉的高性能混凝土可以建造高耐久性的海工混凝土构筑物。 相似文献
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根据巴基斯坦瓜达尔港的施工经验,阐述高性能混凝土在干热地区的应用情况,并针对所出现问题提出应采取的措施。 相似文献
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Theo Notteboom 《WMU Journal of Maritime Affairs》2011,10(1):63-95
Annex VI of the MARPOL Convention aims for a reduction in sulphur oxide emissions from ships. The limits applicable at sea
in Emission Control Areas (ECAs) were reduced from 1.5% to 1% in 2010 and are planned to be further reduced to 0.1%, effective
from 1 January 2015. This paper analyses the impact of the International Maritime Organization’s Tier II/III standards introduced
by Annex VI amendments adopted in October 2008 on costs and prices of roro (roll on/roll off) traffic in the ECAs in North
Europe and on the competitiveness of roro shipping in the ECAs compared to trucking. We demonstrate that the new Annex VI
agreement may be quite costly for the participants in the shipping industry and will result in higher freight rates. Based
on a detailed price analysis on modal competition between the roro/truck option and the ‘truck only’ option on thirty origin–destination
routes linked to the ECAs, we conclude that the use of low sulphur fuel is expected to increase the transport prices particularly
on the origin–destination relations with a medium or long short sea section. The paper also presents the results of a survey
among leading short sea operators in the ECAs in view of providing more insight on expected modal shifts and price elasticity
in the short sea market. 相似文献
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磨细矿渣高性能混凝土在桥梁工程中的应用 总被引:1,自引:1,他引:1
磨细矿渣作为矿物掺合料正在得到越来越广泛的应用,它不仅可以降低生产成本,而且对混凝土的耐久性具有很好的改善作用,如抗渗性、抗冲刷性、碳化性能等。本文论述了磨细矿渣对混凝土性能的改善进行的试验研究及在桥梁工程中进行了应用。 相似文献
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高性能油田泥浆在桩基础施工中的实践 总被引:1,自引:0,他引:1
在传统的桥梁柱基础施工中,泥浆的作用正越来越受到重视,本文主要介绍钻孔灌注柱施工中高性能泥浆的基本情况及在肇庆大桥工程中的实践。 相似文献
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本文介绍了高压喷射注浆技术在广州地铁施工中的应用,通过精心设计和施工,取得了良好的效果。保证了地铁工程施工的顺利进行。 相似文献
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