上埋式柔性过水涵管的施工可行性  

Construction feasibility of flexible pipe for buried discharge culverts

作　　者：郑娟[1] 刘保健[1] 刘春锋[2] 马伟思[1] 

机构地区：[1]长安大学公路学院,西安710064 [2]江西交通职业技术学院,南昌330013

出　　处：《南水北调与水利科技》2015年第3期585-588,共4页South-to-North Water Transfers and Water Science & Technology

摘　　要：柔性管应用到上埋式过水涵管会遇到很多问题,对症下药才能使其应用成为可能。从柔性管工作机理入手,提出了"开槽法"的施工措施。首先对施工措施的理论根据进行解读,然后通过对HDPE缠绕增强管按此工艺进行现场试验来检验该措施的可行性。从滑线电阻位移传感器测得的变形值及光纤光栅测得的应变数据表明,采用"开槽法"施工后,管变形及应变量均极小,无弹性失稳现象,从而证明采用"开槽法"进行施工充分发挥了周围土体的作用,可将柔性管成功地用于上埋式过水涵洞。Application of the flexible pipe to the buried embankment culvert encounters many problems, and determination of the appropriate method can make it work. In this paper, the working mechanism of flexible pipe was introduced, and the construction measure of ＂Grooving method＂ was proposed. The rationale of the construction measure was explained, and then the feasibility of the measure was verified through the field tests for HDPE winding reinforcement pipe. Based on the deformation values measured by the slide resistance displacement sensor and the strain data measured by the fiber grating, the deformation and strain of the pipe are minimal and the pipe has no elastic instability after the construction with ＂Grooving method＂ , which indicated that ＂Grooving method＂ can develop the ability of surrounding soil and therefore the flexible pipe can be used for buried discharge culvert using this method.

关 键 词：柔性管 开槽法 HDPE缠绕增强管 弹性失稳 上埋式过水涵洞 

分 类 号：U449.5[建筑科学—桥梁与隧道工程]