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1. 发明专利

JP2002212941A TRENCHER TYPE SOIL IMPROVEMENT MACHINE, ITS EXECUTION CONTROLLER AND SOIL IMPROVEMENT METHOD 失效
公开(公告)号：JP2002212941A
公开(公告)日：2002-07-31
申请号：JP2001013963
申请日：2001-01-23
申请人： KATO KENSETSU KK
发明人： MAKINO MASAMI , ITO HIROKUNI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a soil improvement machine and its execution controller capable of efficiently executing the work while quantitatively finding the quality of the soil improvement. SOLUTION: A plurality of agitating blades 8 are installed to an endless chain 7 and these are subjected to turn-around movements underground for performing the ground excavation and agitating and mixing treatment by the trencher type soil improvement machine. When the drive velocity is S (m/min), turning speed of the agitating blade 8 is W (m/min), attaching pitch of the agitating blades 8 is C (pieces/m), and the height from the chain 7 to the cutter blade of agitating blade 8 is A (m), then they are set to satisfy the equation of A>S/(W.C). Also, the number of blade cuts by the agitating blade 8 per unit distance in the drive direction during the work is calculated in real time and visually indicated and the number of blade cuts is used for controlling the state of execution of the work.

2. 发明专利

JP2001295265A SOIL IMPROVING DEVICE 失效
公开(公告)号：JP2001295265A
公开(公告)日：2001-10-26
申请号：JP2000136522
申请日：2000-05-10
申请人： KATO KENSETSU KK
发明人： MAKINO MASAMI , ITO HIROKUNI , YAMAMOTO TAKESHI
IPC分类号： E02F5/06 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To secure the same workload as a conventional one by eliminating trouble such as the slip-off of a chain while reducing cost by reducing consumables and maintenance man-hours. SOLUTION: A single endless drive chain 21 is stretched between a drive side chain sprocket 14 and a chain roller 19 provided at a frame 4 of a trencher 3, and a large number of agitation blades 22 are fitted to the outer periphery of the drive chain 21. Each agitation blade 22 is provided with a cutting blade and a back side projecting member. Guide rollers 20 are arranged on both sides of the chain roller 19 at the lower part of the frame 4 to restrain the drive chain 21 from coming off the chain roller 19.

3. 发明专利

JP2001220734A DEVICE FOR SPRINKLING HARDENER FOR GROUND IMPROVEMENT 失效
公开(公告)号：JP2001220734A
公开(公告)日：2001-08-17
申请号：JP2000033000
申请日：2000-02-10
申请人： KATO KENSETSU KK
发明人： MAKINO MASAMI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To recover and reuse dust resulting from the sprinkling of a hardener. SOLUTION: A dustproof box 15 is provided to close the circumference of a hopper 11 adapted for sprinkling the hardener. A partition plate 17 is provided inside the dustproof box 15 to partition the inside of the box into an upper space R1 and a lower space R2 and a bag filer 21 is provided in a vent hole 20 in the partition plate 17. The upper space R1 is connected to a suction device 19. Dust generated when a sprinkling opening 13 is opened to sprinkle the hardener is collected by means of the bag filter 21, which is then made to drop by its own weight and recycled as part of the hardener for effective use.

4. 发明专利

JP2000045290A PRESS FITTING DEVICE AND SUBMERGED STRUCTURE CONSTRUCTION METHOD USING THIS DEVICE 失效
公开(公告)号：JP2000045290A
公开(公告)日：2000-02-15
申请号：JP21399098
申请日：1998-07-29
申请人： KATO KENSETSU KK , KANTO YUKI SERVICE KK
发明人： HAMADA YOSHIYUKI , OZOE KENICHI , YANAGI TOSHIO , TAKEMOTO HIROMOTO
IPC分类号： E02D23/08
摘要： PROBLEM TO BE SOLVED: To provide strong thrust for press fitting without applying special working on a tensile material and without applying special handling to a device. SOLUTION: A press fitting device 2 press-fits a structure underground by transmitting reaction force of a tensile material 5 by actuating a main hydraulic pressure cylinder 21 while alternately holding the tensile material 5 by upper and lower holding means 31, 32. Each of the holding means 31, 32 is arranged around communicating holes 29, 30 of corresponding holding housings 22, 23 as its center, has a plural number of holding pieces 33 having inner surfaces 33a free to make face-to-face contact with a surface of the tensile material 5 and an inner surface 34a free to slide on an outer surface 33b of each of holding pieces 33 and is furnished with a plural number of guide frames 34 to guide movement of each of the holding pieces 33 against the tensile material 5. The outer surface of each of the holding pieces 33 is inclined downward, and the inner surface 34a of each of the guide frames 34 is also inclined downward in the same way. Upper and lower hydraulic pressure cylinders 27, 28 move each of the holding pieces 33 along each of the guide frames 34 so as to hold the tensile material 5 by each of the holding pieces 33.

5. 发明专利

JPH11117659A OVAL FORM HOLLOW CYLINDER 失效
公开(公告)号：JPH11117659A
公开(公告)日：1999-04-27
申请号：JP29649597
申请日：1997-10-15
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , KITAHARA TADASHI , HAMADA YOSHIYUKI , TAKEDA MICHIYA
IPC分类号： E21D5/11
摘要： PROBLEM TO BE SOLVED: To improve an oval form hollow cylinder body made of steel or reinforced concrete, used in a vertical shaft provided for lowering excavating machinery into the ground when excavating a tunnel for, e.g. a subway, in that the cylinder body made of steel does not have sufficient rigidity, whereas the cylinder made of reinforced concrete costs high because forms are expensive. SOLUTION: Piece members 3 made of reinforced concrete are used for the substantially rectilinear parts of an oval form of an oval form hollow cylinder body 1. Piece member 5, 7, 9 each made of steel are used for the substantially circular parts of the oval form. The piece members 3, 5, 7, 9 are connected together in the directions of the axis and the circumference of the oval hollow cylinder 1. The piece members 3 made of reinforced concrete for the substantially rectilinear parts are usable in common even if the specified dimensions of the oval hollow cylinder 1 are different, and reuse of forms is also made possible.

6. 发明专利

JPH11117317A STEEL HOLLOW-CYLINDER FOR EMBEDDING IN UNDERGROUND 失效
公开(公告)号：JPH11117317A
公开(公告)日：1999-04-27
申请号：JP29645097
申请日：1997-10-15
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , HAMADA YOSHIYUKI , ITO ATSUSHI
IPC分类号： E02D23/00 , E02D23/14 , E21D1/00 , E21D5/10
摘要： PROBLEM TO BE SOLVED: To increase the execution precision by providing a fluid ejection nozzle for excavating the ground inside a cylindrical body at a cutter brade equipped at the lower end peripheral edge of the cylindrical body composed of steel divided rings. SOLUTION: Divided rings 23 on which a skin plate 31 is spread are connected to a frame body composed of a main girder 25, a joint plates 27, and vertical ribs 29 to form a cylindrical body. A plurality of nozzles 47 facing the inside of the cylindrical body are provided at the periphery through nozzle pipes 45 in the cutter blade 37 equipped at the rind of the lowermost part of the cylindrical body. Concrete is charged in the cutter blade 37 to increase the rigidity. A pipe 51 sending a fluid to nozzle pipes 45 is arranged at the rear side of the ribs 29, between the skin plate 31 and a backing plate 33 to protect it from contact with a hammer crab backet or the like and further, the pipe 51 is protected by the ribs 29 at the divided rings within 2-4 m above the cutter blade. A coupler 53 connecting the upper and lower pipes 51 is provided in respective rings 23. In this way, ground can be excavated to form a corrugated form in the circumferential direction. And as the cylindrical body is supported by the ground, the body is not tilted on pressin it in the ground and hence the vertical precision thereof can be kept.

7. 发明专利

JPH10331568A STEEL SEGMENT PIECE WITH CONCRETE PLACED IN HOLLOW PART THEREOF AND METHOD FOR CONSTRUCTING SUNK BODY USING THE SAME 失效
公开(公告)号：JPH10331568A
公开(公告)日：1998-12-15
申请号：JP15929297
申请日：1997-06-03
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , HAMADA YOSHIYUKI , ITO ATSUSHI
IPC分类号： E02D23/00 , E01D19/02 , E01D22/00 , E21D5/10 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To provide sufficiently great strength to a cutting edge installed at the lowest steel segment piece and to the lowest steel segment piece or several steel segment pieces as counted from the bottom, in a method whereby a cylindrical sunk body constructed of the steel segment pieces is constructed as it is pressed into the ground from the cutting edge by the excavation of the ground inside it and the application of pressure from above. SOLUTION: A reinforcement 33 is placed inside a cylindrical box-shaped hollow part surrounded by a steel shell 29 which comprises an approximately square skin plate 21, main girders 11 welded to the upper and lower ends of the square on the inner surface of the skin plate 21, and inner shells 27 welded to the main girders 11 and being parallel to the skin plate 21. The ends 34 of the reinforcement which project from a cylindrical box-shaped connection hole 31 that opens to the right and left are made to overlap one another between steel segment pieces 3 to be connected together, and are connected together by placing concrete from placement holes 35 after the connection holes are temporarily welded together.

8. 发明专利

JPH10220162A IMMERSION BODY HAVING PROJECTING BODY ON OUTER PERIPHERAL SURFACE AND DIVISION RING WHICH CONSTITUTES THE SAM IMMERSION BODY 失效
公开(公告)号：JPH10220162A
公开(公告)日：1998-08-18
申请号：JP15929397
申请日：1997-06-03
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , ITO ATSUSHI
IPC分类号： E21D5/10
摘要： PROBLEM TO BE SOLVED: To sink an immersion body straightly so as to construct a structure to be immersed underground. SOLUTION: A projecting body is provided on the outer peripheral surface of an immersion body. The horizontal cross section of the projecting body is triangle in shape and connected to the vertical direction. When deviation is produced during immersion, the resistance of the projecting body against the peripheral ground 9 is increased, which serves to prevent the generation of deviation. The internal part of the projection body is hollow and a twisted wire 11 for an anchor is put thereinto so as to provided a reaction force as a pressing-in force required for immersion. It is, therefore, possible to press in straightly with the hollow projecting body as a guide along the twisted cable 11.

9. 发明专利

JPH10168914A VERTICAL TYPE WATER TANK AND CONSTRUCTING METHOD THEREOF 失效
公开(公告)号：JPH10168914A
公开(公告)日：1998-06-23
申请号：JP35296896
申请日：1996-12-13
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , ITO ATSUSHI
IPC分类号： E02D29/045 , B65D88/06 , B65D88/76 , E21D13/00
摘要： PROBLEM TO BE SOLVED: To provide a vertical water tank, in which an area in the horizontal plane direction may be reduced and the penetration of water on the outside and the leakage of water due to cracking, etc., can be prevented when the water tank is constructed in a ground, and a constructing method thereof. SOLUTION: Cylindrical bodies 15 made of steel are pressed into a ground by a method of press-in construction through a cutting edge 19 installed to a lower end port. Split rings 1 are joined in the peripheral direction and further connected in the axial direction in the cylindrical bodies 15 made of steel. Cylindrical bodies 51 made of precast concrete are mounted on the insides of the cylindrical bodies 15 made of steel after press-in. Not only the ground 39 of a bottom section is improved solidly by a method of high-pressure jet infection construction but also a waterproofing sheet 43 is laid, concrete is further placed on the sheet 43, and bottom concrete 41 is formed.

10. 发明专利

JP2754366B2 失效
公开(公告)号：JP2754366B2
公开(公告)日：1998-05-20
申请号：JP32631595
申请日：1995-11-20
申请人： KATO KENSETSU KK
发明人： HAMADA YOSHUKI
IPC分类号： E03B3/04 , E02B9/04

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