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61. 发明专利

JPS61290120A CONSTRUCTION WORK OF UNDERGROUND CONTINUOUS WALL OR IN-SITU PILE 失效
公开(公告)号：JPS61290120A
公开(公告)日：1986-12-20
申请号：JP12997885
申请日：1985-06-17
申请人： OHBAYASHI CORP
发明人： HAGA TAKASHIGE , SAKIMOTO JUNJI , HIRAO JUNICHI
IPC分类号： E02D5/34 , E02D5/18 , E02D5/58 , E02D15/06
摘要： PURPOSE:To form a reinforced layer in part of usual concrete layer by a method in which a tremie tube is led to a given depth in a pit, correspondingly to the tip position of the tremie tube, and concrete containing an admixture for underwater concrete is placed through the tremie tube. CONSTITUTION:A tremie tube 2 is inserted into a pit 1 and set in such a way that the tip of the tube 2 is positioned 20-30cm above from the bottom of the pit 1. Concrete 4 to which is added segregation-reducing agent (or plasticizer) composed primarily of water-soluble cellulose-ether, e.g., alkyl cellulose, etc., is placed through the tube 2. After the tip of the concrete 4 reaches 2.5-3m above from the bottom of the pit 1, the tube 2 is pulled up until the tip of the tube 2 is pulled up 0.5-1 m below the upper end of the concrete 4, and concrete 5 without the segregation-reducing agent is placed. Further, drawing up the tube 2, the concrete 5 is placed to replace mud water 3.

62. 发明专利

JP2002138463A PERMEABLE DIAPHRAGM WALL AND ITS CONSTRUCTION METHOD 失效
公开(公告)号：JP2002138463A
公开(公告)日：2002-05-14
申请号：JP2000336238
申请日：2000-11-02
申请人： OHBAYASHI CORP
发明人： OIDA TAKESHI , HIRAO JUNICHI , TANAKA YOSHIHIRO
IPC分类号： E02D5/20
摘要： PROBLEM TO BE SOLVED: To provide a permeable diaphragm wall and its construction method capable of eliminating a projected part to an outside bedrock side within a range of the application of a land use regulation when it is applied. SOLUTION: The diaphragm wall 10 includes a soil cement column body 12, cores 14 and a permeable section 16. The column body 12 is constituted of preceeding soil cement column bodies 12a and following soil cement column bodies 12b1 to 12b3. The permeable section 16 provides a prescribed permeable function to a column wall equipped with imperviousness, and it includes a cut-off plate 18, a filler layer 20 and a water pipe 22. The cut-off plate 18 is extended over among the cores 14. The filter layer 20 is inserted between the cut-off plate 18 and an outward bedrock A by storing it in a liquid-tight bag body 24 melted by hot water, and then, it is made to foam and expand to form a continuous bubble to provide permeability thereto. An opening on the side of the lower end of the water pipe 22 is connected to the filter layer 20 lying between the cut-off plate 18 and the outward bedrock A.

63. 发明专利

JP2001295582A METHOD OF PROPULSION 失效
公开(公告)号：JP2001295582A
公开(公告)日：2001-10-26
申请号：JP2000115289
申请日：2000-04-17
申请人： OHBAYASHI CORP
发明人： OIDA TAKESHI , HIRAO JUNICHI
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PROBLEM TO BE SOLVED: To pull up and withdraw a propulsion machine to the start shaft side after the natural ground is excavated, in a method of closed type propulsion wherein an arrival shaft is not provided. SOLUTION: An inner pipe 12 constituting the main body of the propulsion machine having a cutter head 18 disposed at the fore end and an outer pipe 16 so disposed on the outer circumference of the inner pipe 12 as to be engageable with and disengageable from the inner pipe and constituting the inside-diameter section of a pipe duct, are provided. While boring is conducted from a start shaft [A] to a prescribed position with the outer pipe pulled by the inner pipe, the pipe duct is formed behind and the engagement of the outer pipe with the inner pipe is canceled thereafter. In a state wherein the outer pipe is left at the above position of excavation, the inner pipe is moved backward along the longitudinal direction of the pipe duct and pulled up from the position of the start shaft [A].

64. 发明专利

JP2001020279A WATER LEADING APPARATUS FOR UNDERGROUND WALL 失效
公开(公告)号：JP2001020279A
公开(公告)日：2001-01-23
申请号：JP19734599
申请日：1999-07-12
申请人： OHBAYASHI CORP
发明人： OIDA TAKESHI , HIRAO JUNICHI
IPC分类号： E02D17/04 , E02D5/20
摘要： PROBLEM TO BE SOLVED: To enable cleansing processing of placed concrete in an initial stage of hardening of the same. SOLUTION: There is provided a water leading apparatus having an expandable water conduit 22, a hydraulic jack 24, and a raw water conveying portion 26. The water conduit 22 is a double pipe consisting of an inner pipe 22a and an outer pipe 22b, and both the edges thereof are opened. The raw water conveying portion 26 has a casing 26a, a filter layer 26b, and an impervious sheet 26c which is hot-water soluble. The casing 26a is of a box shape, and has an open end thereof, which is arranged so as to face an excavated wall surface on the side of natural ground A. The casing is provided with a permeable plate which defines a passage space above the bottom thereof. The filter layer 26b is housed in the easing 26a in a manner being mounted on the permeable plate. Connected to the passage space are ends of three, i.e., first to third feed pipes 26f, 26g, 26h in a manner communicating with the passage space. The three pipes feed cleansing fluid into the passage space, after dissolution of the impervious sheet 26c.

65. 发明专利

JPH06136754A REMOVAL WORK METHOD FOR UPPER SECTION OF UNDERGROUND CONTINUOUS WALL 失效
公开(公告)号：JPH06136754A
公开(公告)日：1994-05-17
申请号：JP30972892
申请日：1992-10-26
申请人： NIPPON STEEL CORP , HAZAMA GUMI , OHBAYASHI CORP , TOKYU KENSETSU KK , OKUMURA CORP , SHIMIZU CONSTRUCTION CO LTD
发明人： KUGA TAKASHI , TAZAKI KAZUYUKI , TATSUTA MASATAKE , FURUBE HIROSHI , HIRAI MASAYA , SUZUKI TAKUMI , HIRAO JUNICHI , MAIDA TOSHIROU , SAKAI KUNITO , SHIBUSAWA SHIGEHIKO , SAKA SHIRO , MIZUTANI YOSHIYUKI , WATANABE TOSHIO
IPC分类号： E02D5/20 , E02D5/04 , E02D13/00 , E02D13/02
摘要： PURPOSE:To enable removal works for the upper section of an underground continuous wall to be quickly and easily carried out at low cost. CONSTITUTION:A steel bottom plate 2 is fixed onto the lower end section of an upper member 1 composed of steel sheet piles or pipes, and the upper section of a connecting member 3 composed of H shape steel is fixed onto the lower section of the steel bottom plate 2, and the lower section of the connecting member 3 is connected to the upper section of steel sheet piles 5 for an underground continuous wall, which is provided with parallel flanges 4, so that the underground continuous wall 6 is thereby formed. A cutting machine is inserted in the inside of the upper member 1 from above to cut off the lower side section of the upper member 1, subsequently, the upper side section of the upper member 1 is pulled out so as to be removed.

66. 发明专利

JP2006322229A STEEL SHEET PILE WITH NUT, AND ITS CONSTRUCTION METHOD 审中-公开
公开(公告)号：JP2006322229A
公开(公告)日：2006-11-30
申请号：JP2005146816
申请日：2005-05-19
申请人： RAILWAY TECHNICAL RES INST , OHBAYASHI CORP
发明人： KANDA MASAYUKI , NISHIOKA HIDETOSHI , MURATA OSAMU , HIRAO JUNICHI , TSUJI NATSUKO
IPC分类号： E02D5/04
摘要： PROBLEM TO BE SOLVED: To dispense with welding work for the connection of an anchoring material after the insertion of a steel sheet pile, when the anchoring material such as an anchor bar is connected to the steel sheet pile for being used as an earth retaining wall and a sheathing board of a structure, in the construction of the structure of the reinforced concrete in the ground. SOLUTION: This steel sheet piles are inserted into the ground while adjoining each other in the circumferential direction of the structure 5 constructed from the reinforced concrete, so as to enclose the structure 5 to be constructed in the ground. An end surface of a nut 3 is prewelded to a surface, facing the side of the structure 5, of a steel sheet pile body 2 constituting the steel sheet pile. COPYRIGHT: (C)2007,JPO&INPIT

67. 发明专利

JP2006322226A STEEL SHEET PILE WITH BOLT, ITS CONSTRUCTION METHOD, STEEL SHEET PILE BODY FOR USE IN THE METHOD, AND PERFORATED STEEL PLATE WITH STEEL 审中-公开
公开(公告)号：JP2006322226A
公开(公告)日：2006-11-30
申请号：JP2005146718
申请日：2005-05-19
申请人： RAILWAY TECHNICAL RES INST , OHBAYASHI CORP
发明人： KANDA MASAYUKI , NISHIOKA HIDETOSHI , MURATA OSAMU , HIRAO JUNICHI , TSUJI NATSUKO
IPC分类号： E02D5/04
摘要： PROBLEM TO BE SOLVED: To dispense with welding work after the insertion of a steel sheet pile, while enabling the steel sheet pile to be inserted by a press-in machine, a perforated steel plate is joined to the steel sheet pile for being used as an earth retaining wall and a sheathing board of a structure, in the construction of the structure of the reinforced concrete in the ground. SOLUTION: This steel sheet piles are inserted into the ground while adjoining each other in the circumferential direction of the structure 7 constructed from the reinforced concrete, so as to enclose the structure 7 to be constructed in the ground. A bolt 3 is joined or connected to a steel sheet pile body 2 constituting the steel sheet pile, and a shank of the bolt 3 is protruded from a surface, directed to the side of the structure 7, of the steel sheet pile body 2. COPYRIGHT: (C)2007,JPO&INPIT

68. 发明专利

JP2002097631A MAIN BODY UTILIZING METHOD FOR SOIL CEMENT COLUMN ROW WALL 失效
公开(公告)号：JP2002097631A
公开(公告)日：2002-04-02
申请号：JP2000292710
申请日：2000-09-26
申请人： OHBAYASHI CORP , KAWASAKI STEEL CO
发明人： KOZUKI KENJI , HIRAO JUNICHI , WAKIYA HIROSHI , TATSUMI YUUICHI
IPC分类号： E02D5/20
摘要： PROBLEM TO BE SOLVED: To provide an integrated construction method capable of integrating a soil cement column row wall with a skeleton concrete wall without welding a stud dowel at site. SOLUTION: After the soil cement column row wall 1 is constructed, a part which becomes a main body wall is digged along the soil cement column row wall 1, and chipping of an innermost side from an end face of H-steel 10 of the soil cement column row wall 1 is done by about 10 cm further from an end face of a flange 10a so that a part of the flange 10a and a web is exposed. Next, a chipping face is washed, reinforcing bars are arranged, and then main body concrete is placed on a digging inner side and is solidified as shown in (c) to complete the skeleton concrete wall 5. At the same time, the skeleton concrete wall 5 and the soil cement column row wall 1 are solidly integrated using a part of the flange 10a and the web 10b of the H-steel 10 as an anchor.

69. 发明专利

JP2001295267A WATER STOP DEVICE AND CUT-OFF METHOD FOR BURIED PIPE STRUCTURE, AND BURYING DEVICE AND BURYING METHOD 失效
公开(公告)号：JP2001295267A
公开(公告)日：2001-10-26
申请号：JP2000112225
申请日：2000-04-13
申请人： OHBAYASHI CORP
发明人： OIDA TAKESHI , HIRAO JUNICHI
IPC分类号： E02D5/04 , E21D1/03
摘要： PROBLEM TO BE SOLVED: To provide a water stop device and cut-off method for a buried pipe structure, and a burying deice and a burying method allowing the pipe structure to be buried underground while maintaining cut-off performance inside and outside of a pipe, and holding good cut-off performance in the pipe after burying. SOLUTION: This water stop device 5 is provided with an outer frame 6 disposed around a buried pipe at a ground surface part, an expandable movable seal 8a and fixed seal 8b arranged at the inside upper part and lower part of the outer frame 6 to airtightly seal the outer periphery of the buried pipe 1, a pump 10 for feeding a pressure fluid for expansion to the respective seals 8a, 8b, and a selector valve 11 disposed in a pipe line of the pump 10 and selecting the feed direction of the fluid fed into the respective seals 8a, 8b to expand one while contracting the other.

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