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首页> 外文会议>Pipeline Division Specialty Conference; 20050821-24; Houston,TX(US) >TWO DIMENSIONAL MODEL STUDY ON INFILTRATION CONTROL AT A LATERAL PIPE JOINT USING ACRYLAMIDE GROUT
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TWO DIMENSIONAL MODEL STUDY ON INFILTRATION CONTROL AT A LATERAL PIPE JOINT USING ACRYLAMIDE GROUT

机译：丙烯酰胺灌浆对侧向管接头渗透控制的二维模型研究

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摘要

One of the challenges faced in maintaining the aging sewer systems is the infiltration, which is caused by the deterioration of the sewer systems. In this study, A table top lateral joint model was used to investigate grout movement through soil, when sealing sewer pipe leaks at lateral joints by grouting. Acrylamide chemical grout was injected through a leaking lateral joint into a coarse sand (d_(10)=0.5 mm), using 3 psi (21 kPa). The volume of infiltration was measured before and after grouting to determine the effectiveness of grouting. The volume infiltration was measured at 1 min, 1 hr and 24 hrs. after grouting using an external water pressure up to 3 psi (21 kPa). At the end of the test, the shape of the grout bulb around the joint was mapped. A mathematical model was developed to determine the shape of the grouted region around the lateral joint, and verified with the experimental data. The amount of grout used to control the leak around the joint was compared to the recommendation of ASTM F 2304.
机译：维护老化的下水道系统面临的挑战之一是渗透，这是由下水道系统的恶化引起的。在这项研究中，当通过注浆密封下水道在侧缝处的泄漏时，使用台式侧向缝模型研究灌浆在土壤中的运动。使用3 psi（21 kPa），将丙烯酰胺化学灌浆通过一个泄漏的侧缝注入到粗砂（d_（10）= 0.5 mm）中。在灌浆之前和之后测量渗透量，以确定灌浆的有效性。在1分钟，1小时和24小时测量体积渗透。使用最高3 psi（21 kPa）的外部水压注浆后。在测试结束时，绘制了关节周围灌浆球的形状。建立了一个数学模型来确定侧向接头周围的灌浆区域的形状，并用实验数据进行了验证。将用于控制接头周围泄漏的灌浆量与ASTM F 2304的建议进行了比较。

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