Horizontal Directional Drilling Utilizing 36-Inch Flexible Restrained Joint Ductile Iron Pipe — A Successful First Experience
Horizontal Directional Drilling Utilizing 36-Inch Flexible Restrained Joint Ductile Iron Pipe — A Successful First Experience
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DOI：
10.1061/40854(211)33
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发表时间：
2006-07
期刊：
影响因子：
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通讯作者：
Jim Ehrin;R. Carpenter
中科院分区：
文献类型：
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作者：
Jim Ehrin;R. Carpenter
伊利县水务局（ECWA）位于纽约州西部，自1953年开始运作。西亚经委会作为一个自我维持的商业企业运作，从向近55万人口销售安全、清洁的水所产生的收入中支付所有业务费用。工程部对于ECWA为不断扩大的客户群提供高质量的水和高效的服务，同时尽量减少对客户的干扰至关重要。工程部的众多职责之一是监督研究、设计、施工和评估传统和潜在的替代方法，以改善其输电和配电系统的资本。一位经验丰富的员工选择了非开挖技术方法作为他们前瞻性思维和创新的五年资本改善计划的一部分。合同编号EA-06，纽约阿默斯特镇的供水系统改进，设计为36英寸（914毫米）长约11，000英尺（3.3公里）的输水干线。本文的主要重点是在I-990穿越埃利科特河和工程兵团防洪通道。ECWA和他们的工程师Erdman-Anthony选择在水平定向钻（HDD）安装中使用柔性约束接头球墨铸铁管。785英尺（239米）36英寸（914毫米）HDD安装是ECWA首次使用任何尺寸的HDD。36英寸（914毫米）管道采用双线法分两个阶段安装，每个阶段约400英尺（121米）。在约72分钟的总时间内，将两个阶段拉过预扩孔的钻孔路径。本文将讨论36-in（914 mm）柔性约束接头球墨铸铁管采用HDD的成功安装以及项目管理的重要性以及ECWA、咨询工程师、总承包商、HDD分包商和管道供应商之间的协调。
In operation since 1953, Erie County Water Authority (ECWA) is located in western New York state. ECWA operates as a self-sustaining business enterprise and pays for all operating expenses out of revenues generated from the sale of safe, clean water to a population of nearly 550,000. The Engineering Department is vital to ECWA’s ability to provide high quality water and efficient service to this ever-expanding customer base with the least amount of disruption to their customers. One of the many responsibilities of Engineering is to oversee the study, design, construction and evaluation of conventional and potential alternative means for capital improvements to their transmission and distribution systems. A veteran staff has chosen Trenchless Technology Methods as part of their forward thinking and innovative five year capital improvement program. Contract No. EA-06, Water System Improvements in the Town of Amherst, New York, was designed as a 36-in (914mm) water transmission main approximately 11,000-feet (3.3km) long. A particularly challenging crossing of Ellicott Creek and the Corps of Engineers flood control channel at I-990 is the primary focus of this paper. ECWA and their engineer, Erdman-Anthony, chose to use flexible restrained joint ductile iron pipe in a horizontal directional drill (HDD) installation. The 785-feet (239m) 36-in (914mm) HDD installation was ECWA’s first experience with HDD of any size. The 36-in (914mm) pipe was installed using the assembled-line method in two separate stages of approximately 400-feet (121m) each. Both stages were pulled through the pre-reamed borepath in a total time of approximately 72 minutes. This paper will discuss the successful installation of 36-in (914mm) flexible restrained joint ductile iron pipe using HDD and the importance of project management and coordination between ECWA, consulting engineer, general contractor, HDD sub contractor, and the pipe supplier.