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21. 发明专利

JP2003301457A Joint structure and pile joining method for steel pipe pile 审中-公开
标题翻译：钢管桩联合结构和桩接合方法
公开(公告)号：JP2003301457A
公开(公告)日：2003-10-24
申请号：JP2002106041
申请日：2002-04-09
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIZUTANI SHINGO , TAKANO KIMIHISA , TOYOHARA AKITOSHI , TATSUMI YUUICHI
IPC分类号： E02D5/24
摘要： PROBLEM TO BE SOLVED: To obtain a joint structure and a pile joining method for a steel pipe pile, which can reduce resistance in the penetration of the pile.
SOLUTION: This joint structure is equipped with: cylindrical outside joint pipes 35 and 37 which are joined to ends of the two steel pipe piles 31 and 33 to be joined together, respectively, and in which uneven parts 35a and 37a are provided in inner peripheral surfaces; and an arc-shaped member 39 which can be arranged on the inner peripheral surfaces of the joint pipes 35 and 37 over both of the joint pipes 35 and 37 and has uneven parts 39a capable of being fitted into the uneven parts 35a and 37a of the joint pipes 35 and 37. The member 39 is arranged in inner peripheral parts of the joint pipes 35 and 37 in such a manner that the uneven parts 35a, 37a and 39a are fitted into one another, and the joint pipes 35 and 37 are joined together, so that the two piles 31 and 33 can be joined together.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了获得可以降低桩的穿透性的钢管桩的接头结构和桩接合方法。解决方案：该接头结构配备有：分别连接到两个钢管桩31和33的端部的圆筒形外侧接头管35和37，以分别连接在一起，并且设置有不平坦部35a和37a 在内周面; 以及可以在两个接合管35和37上布置在接合管35和37的内周面上的弧形部件39，并且具有能够装配到接头管35和37的不平坦部分35a和37a中的不平坦部分39a 接合管35和37.构件39以不平坦部35a，37a和39a彼此嵌合的方式设置在接合管35和37的内周部分中，并且接合管35和37接合一起，使得两个堆31和33可以连接在一起。版权所有（C）2004，JPO

22. 发明专利

JP2003106082A EXTENSIVE EXCAVATION JIG FOR DRIVING FOUNDATION PILE 审中-公开
公开(公告)号：JP2003106082A
公开(公告)日：2003-04-09
申请号：JP2002191334
申请日：2002-06-28
申请人： KAWASAKI STEEL CO , TOKYO SEISAKUSHO KK , NOZAKI KENKO KK
发明人： WAKIYA HIROSHI , TATSUMI YUUICHI , INOUE HACHIRO , FUKUDA KAZUO
IPC分类号： E21B10/32 , E02D5/44 , E02D7/00
摘要： PROBLEM TO BE SOLVED: To provide an excavation jig for driving a foundation pile, which can extend the diameter of excavation in a large amount without incurring rapid and severe resistance from the ground at the time of excavation. SOLUTION: According to the extensive excavation jig, an excavating shaft 3 is spline-connected to a driving shaft 2 in a manner being relatively displaceable in the vertical direction. Then, an upper end of an extended blade 4 is connected to the driving shaft 2 in a vertically rotatable manner, and a lower end of the extended blade 4 is connected to an upper end of an auxiliary link 12 in a vertically rotatable manner, followed by connecting a lower end of the auxiliary link 12 to the excavating shaft 3 in a vertically rotatable manner. Further, a cutter 8 for extensive excavation is attached to the extended blade 4.

23. 发明专利

JP2003261938A JOINT STRUCTURE OF STEEL PIPE PILE AND PILE JOINTING METHOD 审中-公开
公开(公告)号：JP2003261938A
公开(公告)日：2003-09-19
申请号：JP2002065868
申请日：2002-03-11
申请人： JFE STEEL KK
发明人： MIZUTANI SHINGO , SHINOHARA TOSHIO , TAKANO KIMIHISA , TOYOHARA AKITOSHI , TATSUMI YUUICHI
IPC分类号： E02D5/24
摘要： PROBLEM TO BE SOLVED: To obtain a joint structure of a steel pipe pile capable of being manufactured at a low cost and a pipe jointing method excellent in workability. SOLUTION: The joint structure of the steel pipe pile includes cylindrical inside joint pipes 35 and 37 respectively connected to the ends of two steel pipe piles 31 and 33 to be jointed and provided with uneven sections 35a and 37a on the outer circumference and a circular arc-shaped member 39 capable of being placed over these two inside joint pipes 35 and 37 on the outer circumferences of the inside joint pipes 35 and 37 and having an uneven section 39a capable of being fitted to the uneven sections 35a and 37a of the inside joint pipes 35 and 37. In the joint structure for connecting the two steel pipe piles 31 and 33 by connecting both inside joint pipes 35 and 37 by placing the circular arc-shaped member 39 on the outer circumferences of the inside joint pipes 35 and 37 so as to fit the uneven sections 35a, 37a and 39a to each other, the center of the plate thickness of the steel pipe piles 31 and 33 and the center of the uneven sections 35a, 37a and 39a of the inside joint pipes 35 and 37 and the circular arc-shaped member 39 are coaxially aligned on an axis parallel with a pile. COPYRIGHT: (C)2003,JPO

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