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2. 发明专利

JP2009293343A Connection structure of natural ground reinforcement pipe 审中-公开
标题翻译：天然地基加固管连接结构
公开(公告)号：JP2009293343A
公开(公告)日：2009-12-17
申请号：JP2008150391
申请日：2008-06-09
申请人： Higashio Mech Co Ltd , Nippon Steel Corp , Ohbayashi Corp , Tmc:Kk , 新日本製鐵株式会社 , 東尾メック株式会社 , 株式会社ティーエムシー , 株式会社大林組
发明人： SATO SATORU , ISO YOSHINOBU , KINASHI HIDEO , KAMIYA NOBUKI , ITO SATORU , MIMURA DAISUKE , OKAMOTO YORIAKI
IPC分类号： E21D9/04
摘要： PROBLEM TO BE SOLVED: To provide a connection structure of natural ground reinforcement pipes capable of easily and quickly connecting pipes with a sufficient strength.
SOLUTION: The connection structure connects end sections 1a of two natural ground reinforcement pipes 1 having a circular tube shape with each other with a cylindrical joint 3. The joint 3 has insertion sections 3a, 3a formed at both end sides thereof to be inserted individually into end sections 1a, 1a of the two pipes 1, 1, and a protrusion 30 is formed on the outer circumference of the insertion section 3a. The end section 1a of the pipe 1 is notched to form an L-shaped slit 60, into which the protrusion 30 is inserted from the end face 1b. The L-shaped slit 60 includes an insertion section 61 opened in the end face 1b and formed longitudinally and an engagement section 62 formed continuously with an inner end 61a of the insertion section 61 and formed circumferentially. The engagement section 62 is provided with an inclined inner edge 62a brought into pressure contact with the protrusion 30 in the connection state. The inclined inner edge 62a is inclined to the intermediate section side of the pipe 1 by a specified angle θ from the circumferential direction.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够以足够的强度容易且快速地连接管道的天然地面加固管的连接结构。解决方案：连接结构将具有圆形管状的两个天然地面加固管1的端部1a与圆柱形接头3相互连接。接头3具有形成在其两端侧的插入部分3a，3a，单独插入到两个管道1,1的端部1a，1a中，并且在插入部分3a的外周上形成有突起30。管1的端部1a被切口以形成L形狭缝60，突起30从端面1b插入其中。 L形狭缝60包括在端面1b中纵向形成的插入部61和与插入部61的内端61a连续形成并且周向形成的卡合部62。接合部分62设置有在连接状态下与突起30压力接触的倾斜内边缘62a。倾斜内边缘62a从管圆周方向以规定角度θ倾斜于管1的中间部分侧。版权所有（C）2010，JPO＆INPIT

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