The Experts below are selected from a list of 1617 Experts worldwide ranked by ideXlab platform
Mohammad Najafi - One of the best experts on this subject based on the ideXlab platform.
-
Special Issue on International Conference on Pipelines and Trenchless Technology 2011
Journal of Pipeline Systems Engineering and Practice, 2015Co-Authors: Mohammad NajafiAbstract:The International Conference on Pipelines and Trenchless Technology 2011 was held on October 26–29, 2011, at the China National Convention Center in Beijing, China. The conference was cosponsored by the Pipeline Division (ASCE), China–U.S. Joint Center for Trenchless Research and Development at China University of Geosciences, Center for Underground Infrastructure Research and Education at the University of Texas at Arlington, Soil & Rock Drilling and Protecting Engineering Research Center of China Ministry of Education, and Wuhan Deawon Trenchless Technology Company. The conference received 635 abstract submissions; of these, 291 excellent papers were finally accepted and presented at the conference. A total of 272 papers were published in the proceedings and 19 best papers were selected and recommended to the Journal of Pipeline Systems Engineering and Practice. Eventually, 16 papers were accepted and 10 papers were published in the February 2013 issue of the Journal, and the rest are published in this issue.
-
ICPTT 2014: Creating Infrastructure for a Sustainable World
2014Co-Authors: Mohammad Najafi, Huiming TangAbstract:Proceedings of the International Conference on Pipelines and Trenchless Technology, held in Xiamen, China, November 13-15, 2014. Sponsored by the Pipeline Division of ASCE; China-U.S. Joint Center for Trenchless Research and Development at China University of Geosciences-Wuhan; the Center for Underground Infrastructure Research and Education (CUIRE) at the University of Texas at Arlington; the Wuhan PipeTong Trenchless Technology Co. Ltd.
-
icptt 2013 Trenchless Technology the best choice for underground pipeline construction and renewal proceedings of the international conference on pipelines and Trenchless Technology october 16 18 2013 xi an china
2013Co-Authors: Huiming Tang, Mohammad NajafiAbstract:Proceedings of the International Conference on Pipelines and Trenchless Technology, held in Xian China, October 1618, 2013. This collection contains 133 peer-reviewed papers on all aspects of pipeline engineering, with a particular focus on Trenchless Technology. Topics include: integrated asset management; condition assessment; leak detection and monitoring; hydraulic modeling; pipeline design, transmission, distribution, and in-plant; pipe location technologies; pipe assessment; Trenchless technologies; TBM for pipeline and tunnel construction; seismic pipeline design; pipeline rehabilitation; pipeline construction and management; gas/oil regulatory update; corrosion control and monitoring; pipeline risk management; research and development; pipeline failures; and pipeline safety regulation update. These papers will be of interest to engineers working with all types of pipelines.
-
ICPTT 2012: Better Pipeline Infrastructure for a Better Life
2012Co-Authors: Mohammad Najafi, Guosheng Jiang, Lawrence M. SlavinAbstract:Proceedings of the International Conference on Pipelines and Trenchless Technology, held in Wuhan, China, October 19-22, 2012. Sponsored by Pipeline Division of ASCE; China-U.S. Joint Center for Trenchless Research and Development at the China University of Geosciences; Center for Underground Infrastructure Research and Education, University of Texas at Arlington; Buried Asset Management Institute.International; Soil & Rock Drilling and Protecting Engineering Research Center, China Ministry of Education; and Wuhan Deawon Trenchless Technology Co. Ltd.
-
ICPTT 2009: advances and experiences with piplines and Trenchless Technology for water, sewer, gas, and oil applications : poceedings of the International Conference on Piplines and Trenchless Technology 2009, October 18-21, 2009, Shanghai, China
2009Co-Authors: Mohammad NajafiAbstract:Proceedings of the International Conference on Pipelines and Trenchless Technology, held in Shanghai, China, October 18-21, 2009. Cosponsored by the Pipeline Division of ASCE; China-U.S. Joint Center for Trenchless RD China Society for Trenchless Technology; Center for Underground Infrastructure Research and Education. This collection contains 227 papers on the following topics of interest to pipeline professionals: integrated asset management; condition assessment; leak detection and monitoring; pipeline inspection; pipeline planning; hydraulic modeling; geographic information systems; pipeline design--transmission, distribution, and in-plant; pipe location technologies; risk assessment; subsurface utility engineering; Trenchless technologies; pipeline crossings; seismic pipeline design; pipeline rehabilitation; construction management; pipeline installation; hazard assessments; corrosion control and monitoring; public and environmental safety; pipelines risk management; research and development; system vulnerability analysis; pipeline failures; and water quality regulations update.
Frances Ringwood - One of the best experts on this subject based on the ideXlab platform.
-
world first pipe reaming for tshwane Trenchless Technology
IMIESA, 2016Co-Authors: Frances RingwoodAbstract:A new pipe reaming method never before used in a single pass on a bulk pipeline has proved optimal in replacing ageing pipeline infrastructure, causing no disruption to overhead powerlines.
-
Inspector gadgets save the sewers : Trenchless Technology
2016Co-Authors: Frances RingwoodAbstract:Before embarking on a Trenchless Technology project for the repair of sewage pipelines, it's essential to have a clear idea of the level of deterioration before taking the next step. CCTV, and laser and sonar profiling provide a good picture of what lies ahead.
-
Digging No Dig in SA : Trenchless Technology
2015Co-Authors: Frances RingwoodAbstract:Whether South Africa wins a bid to host the international version of No Dig 2018 will be a deciding factor in the South African Society of Trenchless Technology's (SASTT) decision to host its regular local No Dig conference in either 2016 or 2017.
Inês Meireles - One of the best experts on this subject based on the ideXlab platform.
-
The Influence of the Construction Technology in Time-Cost Relationships of Sewerage Projects
Water Resources Management, 2018Co-Authors: Vitor Sousa, Inês MeirelesAbstract:Time-cost models have been developed in various contexts to assist in forecasting the duration of different types of projects. The present research explores the influence of the construction Technology on the time-cost relationship. For that purpose, the data from 21 sewerage projects using Trenchless Technology and from 49 sewerage projects using the traditional open-cut method was analyzed. The 70 sewerage projects analyzed were completed in Chicago, U.S., between 1994 and 2002. The influence of the construction Technology in the time-cost relationship was found to be statistically significant and time-relationships were determined for sewerage projects using Trenchless Technology and the traditional open-cut method. Furthermore, along with the Bromilow type models an alternative approach was tested using the time normalized by the project cost as dependent variable, allowing additional insight into the time performance of the open-cut and lining Technology used (cured in place).
Shaliza Ibrahim - One of the best experts on this subject based on the ideXlab platform.
-
Technologies for sewer rehabilitation in Malaysia
2005Co-Authors: Bhaskar Sen Gupta, S. Chandrasekaran, Shaliza IbrahimAbstract:After assuming control of Malaysia’s sewer systems, Indah Water Konsortium Sdn Bhd commissioned a study into the available sewer rehabilitation techniques in the market with the intention of finding suitable methods to rehabilitate sewers in and around Malaysia. This report outlines the key findings of the study, focusing on the applicable sewer rehabilitation techniques which use Trenchless Technology.
-
A survey of sewer rehabilitation in Malaysia: application of Trenchless technologies
Urban Water, 2001Co-Authors: B. Sen Gupta, S. Chandrasekaran, Shaliza IbrahimAbstract:This work presents a review of applicable sewer rehabilitation options using Trenchless Technology in Malaysia. The typical problems faced in wastewater collection systems are analysed and factors that determine the selection method are outlined. This study also highlights the necessary steps to be taken prior to the rehabilitation work. The Trenchless Technology reviewed here comprises repair, renovation and replacement options. The cost-effectiveness of different rehabilitation methods was identified to assess the economic viability of various options in the Malaysian context. This study reveals that not all the Trenchless technologies available in the market are suitable for use in Malaysia, mainly due to incompatibility of the rehabilitation materials used. Furthermore, as Trenchless rehabilitation generally involves higher capital outlay than open-cut methods, the choice of rehabilitation method has to be made on a case-to-case basis.
John C. Matthews - One of the best experts on this subject based on the ideXlab platform.
-
How does Trenchless Technology make pipeline construction greener? A comprehensive carbon footprint and energy consumption analysis
Journal of Cleaner Production, 2020Co-Authors: John C. Matthews, Tom IseleyAbstract:Abstract Pipelines are the primary means of transporting energy or resources, such as oil, natural gas, or water. Nowadays, with the increasing demand for resources, the construction of pipelines is also increasing. Under the context of promoting green production, the open-cut method has been unable to meet the requirements of environmental protection. Therefore, Trenchless Technology has become an alternative to pipeline construction, which has the characteristics of fast construction speed and low carbon footprint. This paper briefly introduces a variety of typical Trenchless installation and renewal methods. Based on the relevant theory of carbon footprint calculation during construction, the energy consumption and carbon footprint from the open-cut method and the Trenchless construction methods under the same conditions are compared. Moreover, the sensitivity of different construction methods to different factors is analyzed. The main conclusions are drawn: (1) In most cases, the cured-in-place pipe method has less energy consumption and carbon footprint than other pipeline repair methods and is less affected by various design factors. (2) Various Trenchless technologies have reduced construction energy consumption and carbon footprint to varying degrees relative to the open-cut method. (3) When the construction length is short or the depth is very shallow, the energy consumption and carbon footprint of the Trenchless method may be higher than the open-cut method.
-
Multi-segment Trenchless Technology method selection algorithm for buried pipelines
Tunnelling and Underground Space Technology, 2018Co-Authors: John C. Matthews, Erez N. Allouche, Greta Vladeanu, Shaurav AlamAbstract:Abstract There are many tools, models, and algorithms to aid in the selection of appropriate Trenchless methods for pipeline installation or rehabilitation. However, one key concern is which method or technique provides optimum solution to the rehabilitation of multiple pipe segments rather than just a single pipe segment. Therefore, the searching criterion for an optimum decision support system is divided into two parts. First, the selection of the optimum method capable of solving the problem properly. Second, a simultaneous analysis of other parameters such as cost, time, and quality to improve the overall benefits of the project. It is observed that most of the real-world cases involves multiple segments in a single project. Therefore, an optimization of the solution must be made for those multiple pipe segments. Although use of different methods for each segment is a preferable solution, it may not be feasible in a wider consideration of project cost, quality, and time. Hence, one way to determine the optimal solution for multiple line segments is to minimize the number of methods and their anticipated total costs which include direct costs and social costs. This paper presents a mathematical approach to expedite the optimum solution by evaluating all of the Trenchless Technology methods capable of installing, replacing, or rehabilitating each pipe segment (a solution set) and minimizing the number of methods and their total costs.
-
Fully Automated Decision Support System for Assessing the Suitability of Trenchless Technologies
Journal of Pipeline Systems Engineering and Practice, 2012Co-Authors: John C. Matthews, Erez N. AlloucheAbstract:AbstractDecisions related to the rehabilitation of wastewater and water infrastructure are increasingly more complicated as the number and complexity of technologies in the marketplace increases. Established methods, such as cured-in-place pipe (CIPP), are constantly evolving, and new techniques continue to be developed in North America and abroad. The need to assess the suitability of these constantly changing technologies creates the need for a resource capable of evaluation and selection of appropriate methods through a Web-based source that can be kept up to date. To meet that need, the Trenchless Technology Center (TTC), in collaboration with the National Utility Contractors Association (NUCA), Australasian Society of Trenchless Technology (ASTT), and National Association of Sewer Service Companies (NASSCO), through multiple research initiatives, has developed a comprehensive and interactive software for the evaluation of more than 70 technologies that can be employed in the installation, replacement...
