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给水排水 2013年第8期39卷 I0022-I0024页

作者：廖足良 Bill Barber Richard Lancaster Keith Panter Harald Kleiven Martin Jolly CambiAS 挪威 Aecom 澳大利亚 United UtiIitiesLtd 英国 Ebcor Ltd 英国 black&veatch 英国青岛理工大学青岛

介绍了英国曼切斯特Davyhulme污泥中心在部分污泥采用传统厌氧消化和焚烧和部分采用污泥石灰稳定的基础上，经过对比扩建焚烧的A方案和对现有消化采用预处理升级到高级厌氧消化的B方案，决策采用高级厌氧消化为核心的扩容升级战略，使... 详细信息

介绍了英国曼切斯特Davyhulme污泥中心在部分污泥采用传统厌氧消化和焚烧和部分采用污泥石灰稳定的基础上，经过对比扩建焚烧的A方案和对现有消化采用预处理升级到高级厌氧消化的B方案，决策采用高级厌氧消化为核心的扩容升级战略，使该项目实现充分利用现有焚烧设施提高焚烧能力、取消现有石灰稳定、大幅度扩容升级消化能力、大幅度提高沼气产量、全面升级到A级生物固体品质、实现生物固体土地利用和焚烧的多出路策略、大幅度减少新污泥战略的碳排放，全面实现低碳、绿色、可持续发展的污泥战略。

关键词：污泥中心高级厌氧消化焚烧扩容升级改造污泥战略 A级生物固体碳排放

Bounding Surface Approach to the Modeling of Anisotropic Fatigue Damage in Woven Fabric Composites

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Open Journal of Composite Materials 2012年第4期2卷 125-132页

作者： Chao Wen Siamak Yazdani Yail J. Kim Magdy Abdulrahman black & veatch Corporation Overland Park USA North Dakota State University Fargo USA

A general approach for the modeling of fatigue induced damage in woven fabric composites and under multi-axial stress state is outlined in this paper. Guided by isotropic hardening/softening theories of plasticity and damage mechanics, a generalized bounding surface approach is presented. It is argued that the limit surface is only a special case in such a formulation when the fatigue cycle is set to one and that under fatigue environment the limit surface contracts to a failure (residual strength) state based on the number of cycle, stress path, and stress magnitude. Within the formulation, specific kinetic relations for microcrack growth are postulated for woven fabric composites and a new direction function is specified to capture strength anisotropy of the material. Anisotropic stiffness degradations and inelastic strain propagation due to damage processes are also obtained utilizing damage mechanics formulation. The paper concludes with comparing theoretical predictions against experimental records showing a good agreement.

关键词： Woven Composites Fatigue Damage Anisotropic Response Tensor

英国曼切斯特Davyhulme污泥中心采用高级厌氧消化实现低碳排放的污泥战略

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给水排水动态 2013年第4期8卷 22-24页

作者：廖足良 Bill Barber Richard Lancaster Keith Panter Harald Kleiven Martin Jolly CambiAS 青岛理工大学 Aecom United Utilities Ltd Ebcor Ltd black&veatch

介绍了英国曼切斯特Davyhulme污泥中心在部分污泥采用传统厌氧消化和焚烧和部分采用污泥石灰稳定的基础上,经过对比扩建焚烧的A方案和对现有消化采用预处理升级到高级厌氧消化的B方案,决策采用高级厌氧消化为核心的扩容升级战略,使该项... 详细信息

介绍了英国曼切斯特Davyhulme污泥中心在部分污泥采用传统厌氧消化和焚烧和部分采用污泥石灰稳定的基础上,经过对比扩建焚烧的A方案和对现有消化采用预处理升级到高级厌氧消化的B方案,决策采用高级厌氧消化为核心的扩容升级战略,使该项目实现充分利用现有焚烧设施提高焚烧能力、取消现有石灰稳定、大幅度扩容升级消化能力、大幅度提高沼气产量、全面升级到A级生物固体品质、实现生物固体土地利用和焚烧的多出路策略、大幅度减少新污泥战略的碳排放,全面实现低碳、绿色、可持续发展的污泥战略。

关键词：污泥中心高级厌氧消化焚烧扩容升级改造污泥战略 A级生物固体碳排放

Total Water Management Strategy In Hong Kong

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Total Water Management Strategy In Hong Kong

Use of Masonry Construction &Demolition Waste in Concrete

第四届粤港澳可持续发展研讨会

作者： Bobby M T NG C L Wong Alan H L MAN Gigi L C LAM Water Supplies Department Hong Kong SAR black & veatch Hong Kong SAR

Today,sustainability of life supporting resources including clean fresh water is a global challenge for *** availability of these resources is declining,the demand for their consumption continues to *** is evident in the Pearl River Delta(PRD)region where unprecedented growth in economy has sparked keen demand for fresh water resources within the *** change adds further uncertainty to the *** Hong Kong will have adequate water supply to cope with the projected demand in the coming two decades with the importation of Dongjiang water,to better prepare for uncertainties such as climate change as well as to help enhance Hong Kong’s role as a good partner of other municipalities in the PRD region in promoting sustainable use of water,the Hong Kong Special Administrative Region(HKSAR)Government commissioned black & veatch(B&V)to undertake a compre- hensive study on the Total Water Management(TWM)in Hong *** into account local conditions and overseas experiences,the TWM study has considered all major options of water demand management measures as well as water supply management *** water de- mand/supply management option has been evaluated in terms of quantity of water saved or sup- plied,cost effectiveness,environmental impact and public *** on the findings of the study,a TWM strategy is formulated for the period up to year 2030.

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World Journal of Engineering and Technology 2017年第2期5卷 216-231页

作者： Tahir Kibriya Leena Tahir Ex Faculty/Head of Civil Engineering Department NUST Risalpur Pakistan (Presently Senior Consulting Engineer Black & Veatch Toronto Canada) MSc Structural Engineering City University London UK

Massive amounts of brick waste are obtained from demolition of old buildings and structures around the world. With the increased stress on sustainable construction, and environmentally friendly materials and greener concreting practices, a large proportion of such waste bricks are crushed and mixed with normal aggregates for use in concrete. The performance of concrete containing waste brick aggregates partially replacing normal aggregates have not been investigated for their performance. This paper covers investigations carried out on concrete with such aggregates obtained from demolition waste and mixed with varying proportions of normal aggregates to produce concrete. Two types of crushed brick aggregates were mixed with gravel in the ratios of 30:70 and 40:60 by weight and specimen were cast for investigations. Two w/c ratios were investigated. Various tests were carried out to assess the compressive strength of cubes and cylinders of mixed aggregates concrete along with f1exural strength, stress/strain behavior, moduli of elasticity, ultrasonic pulse velocity determination, densities, surface absorption, shrinkage and frost resistance. The values obtained from these tests were compared with the values of concrete with normal aggregates (gravel) with similar w/c ratios. While the strength tests and durability tests more or less gave satisfactory results however the larger moisture absorption by the waste brick aggregates reduces the frost resistance capacity somewhat thereby care needs to be exercised in using these mixes in regions/areas susceptible to frost.

关键词： Demolition Waste Construction Waste Recycled Aggregates Recycled Aggregates Concrete Sustainable Construction Environmental Friendly Waste Green Concrete

Sustainable Construction—Use of Stone Dust as Plasticiser in High Strength SCC with Blended Cement

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World Journal of Engineering and Technology 2017年第3期5卷 412-420页

作者： Tahir Kibriya Leena Tahir Senior Consulting Engineer Black & Veatch Toronto Canada (ex Faculty/ Head of Civil Engineering Department NUST Risalpur Pakistan) MSc Structural Engineering City University London UK

Extensive growth in the developing countries due to infrastructure development is resulting into massive consumption of concrete thereby increasing the demand on concrete materials. Quite large amounts of fine aggregates are required for concrete in developing countries thus shortages of quality river sand is putting pressure on availability of fine aggregates. To fulfill the high demand of fine aggregates, a search for alternative materials is in process. Stone crushing and processing industry is a large industry which generates large amounts of stone dust and slurry which is a waste produced from this process. Tons of such waste generated has no useful purpose except as landfill material. Some preliminary studies have been conducted into use of marble/ limestone waste for use in concrete [1] [2].?This study aims at using stone dust as partial replacement of sand in concrete to observe its effects on workability and other mechanical properties. This would result in useful consumption of this waste product thereby eliminating environmental issues related to its disposal. Partial replacement of 10% and 20% sand replacement with stone dust is carried out with the use of self-compacting concrete with blended cement. Blended cement used contains 50% rice husk ash and 50% Portland cement. Such high strength SCC with blended cement containing 50% rice husk ash and 50% Portland cement has already been tested to provide better quality concrete [3]. Wide ranging investigations covering most aspects of mechanical behavior and permeability were carried out for various mixes for compressive strengths of 60?MPa & 80?MPa. Compressive strengths of high strength SCC with blended cements and 10% and 20% replacement of sand with stone dust for 60?MPa and 80?MPa were observed to be higher by about 10% to 13% than the control specimen. Higher elastic moduli and reduced permeability were observed along with better sulphate and acid resistance. Better strengths and improved durability of

关键词： Blended Cements Stone Dust Rice Husk Ash Sustainable Construction Industrial Waste Agricultural Waste in Concrete

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香港九龙大坑东地下蓄水方案数值研究

水科学进展 2006年第3期17卷 334-341页

作者：匡翠萍李行伟陈孝章 Peter Clark Nick Townsend Raymond Siu 同济大学土木学院地下建筑与工程系上海200092 香港大学土木工程系 Binnie black and veatch香港分公司香港渠务署

香港九龙大坑东地下蓄水方案(Tai Hang Tung Storage Scheme-THTSS)是香港西九龙渠道改善二期计划的一个重要组成部分,其目标是解决香港九龙繁华拥挤、人口稠密的商业中心旺角一带的洪水淹没问题。THTSS即是在经常洪水淹没区域(大坑东... 详细信息

香港九龙大坑东地下蓄水方案(Tai Hang Tung Storage Scheme-THTSS)是香港西九龙渠道改善二期计划的一个重要组成部分,其目标是解决香港九龙繁华拥挤、人口稠密的商业中心旺角一带的洪水淹没问题。THTSS即是在经常洪水淹没区域(大坑东和界限街水渠交接处)上游足球场下面建立一个100 000 m3的地下蓄水池。本文建立了一个能处理明渠缓流和急流、封闭管道有压流、侧流堰和渠道汇合处过渡流于一体的一维水力数学模型,用1∶22正态物理模型恒定流下的结果进行验证。数值模型计算了在50年一遇暴雨下,非恒定洪水在不同的侧流堰方案下的流动过程。结合物理模型试验结果,选择最佳的地下蓄水方案。计算结果表明,大坑东地下蓄水方案确实能加强旺角地区地洪水控制能力,并能通过50年一遇暴雨的洪水。

关键词：暴雨洪水大坑东地下蓄水方案侧流堰 50年一遇暴雨

Sustainable Construction—High Performance Concrete Containing Limestone Dust as Filler

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World Journal of Engineering and Technology 2017年第3期5卷 404-411页

作者： Tahir Kibriya Leena Tahir Senior Consulting Engineer Black & Veatch Toronto Canada (ex Faculty/Head of Civil Engineering Department NUST Risalpur Pakistan) MSc Structural Engineering City University London UK

Massive amounts of limestone waste are produced by the stone processing industry worldwide. Generally, it is believed that 60% to 70% of the stone is wasted in processing in the form of fragments, powder and slurry out of which around 30% is in the form of fine powder [1]. This waste has no beneficial usage and poses environmental hazards. Use of this waste product in the construction industry can largely reduce the amount of waste to be disposed off by the local municipalities in addition to reducing large burden on the environment. Some basic research on use of limestone dust as cement/ concrete filler?has?been carried out in the recent past but high strength/ high performance concretes have not been investigated yet [2] [3]. The concrete industry is among the largest consumer of raw materials worldwide and has been investigated for use of various types of waste materials like crushed brick, rice husk and straw ash as either aggregates for concrete or as partial cement substitutes. Use of limestone dust as filler material in concrete can consume a huge amount of this waste material which has to be disposed off otherwise, creating large burden on the environment. This experimental study aimed at evaluating the properties of high performance concretes made from Portland cement, natural aggregates and sand. Limestone dust was added by replacing sand in the percentages of 10% and 20%. Wide ranging investigations covering most aspects of mechanical behavior and permeability were carried out for various mixes for compressive strengths of 60?N/mm2, 80?N/mm2 and 100?N/mm2. Compressive strengths of concrete specimen with partial replacement of sand with 10% and 20% limestone dust as filler material for 60?N/mm2, 80N/mm2 and 100?N/mm2 were observed to be higher by about 4% to 12% than the control specimen. Flexural strengths were also observed to be higher by 12%?-?13%. Higher elastic moduli and reduced permeability were observed along with better sulphate and acid resistan

关键词： Limestone Dust Filler Sustainable Construction Construction Waste High Strength Concrete Cement Filler

重力传动浸膜在大型给水厂的使用实例(英文)

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重力传动浸膜在大型给水厂的使用实例(英文)