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1. 发明专利

JPH10219675A GROUT DISCHARGE DEVICE OF GROUND-IMPROVING EXCAVATOR 失效
公开(公告)号：JPH10219675A
公开(公告)日：1998-08-18
申请号：JP2744797
申请日：1997-02-12
申请人： SHIMIZU CONSTRUCTION CO LTD , MITSUI SHIPBUILDING ENG , JAPAN FOUND ENG
发明人： SHIMIZU KATSUMI , WATANABE TOSHIO , KUSAKARI TAICHI , KAMIMURA KAZUYOSHI , KITAGAWA KAZUNORI , NAKAMURA MASARU , IIDA NOBUO , TAKEISHI MINEYA , KAWAMOTO SATORU
IPC分类号： E02F5/02 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a grout discharge device devised to prevent mixture of sediments, etc., by changing a grout discharge port interlocked with the opening and closing of an excavating and stirring blade. SOLUTION: One or more of stirring shafts 2 provided on a ground-improving excavator are provided with excavating and stirring blades 11-14 in multiple stages and in an openable and closeable state. Additionally, a three-way change- over valve 34 to be interlocked with the opening and closing of the excavating and stirring blades 11-14 is arranged in the middle of a grout piping 33 provided on each of the stirring shafts 2 so that a discharge port of a head end of the stirring shaft and the grout piping 33 are communicated to each other in a closed state of the excavating and stirring blade and a discharge port 40 on a side surface of the stirring shaft and the grout piping 33 are connected to each other in an open state of the excavating and stirring blade.

2. 发明专利

JPH10219672A EXCAVATING AGITATING BLADE OF GROUND IMPROVING EXCAVATOR 失效
公开(公告)号：JPH10219672A
公开(公告)日：1998-08-18
申请号：JP2744897
申请日：1997-02-12
申请人： SHIMIZU CONSTRUCTION CO LTD , MITSUI SHIPBUILDING ENG , JAPAN FOUND ENG
发明人： SHIMIZU KATSUMI , WATANABE TOSHIO , KUSAKARI TAICHI , KAMIMURA KAZUYOSHI , KITAGAWA KAZUNORI , NAKAMURA MASARU , IIDA NOBUO , TAKEISHI MINEYA , KAWAMOTO SATORU
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To length a length of excavating agitating blades house in a housing body having a limited length, and produce an improved body having a large diameter by housing tip parts of the excavating agitating blades of an upper stage in a lapping shape on the outside of an opening-closing fulcrum of the excavating agitating blades of a lower stage. SOLUTION: Excavating agitating blades 11 to 14 are installed on an agitating shaft 2 of a ground improving excavator so as to be simultaneously freely openable and closable by 90 deg. with support shafts 18 as an opening-closing fulcrum. The excavating agitating blades 11 and 13 of a lower stage part and the excavating agitating blades 12 and 14 of an upper stage part are installed in a step difference shape on the agitating shaft 2, and tip parts of the excavating agitating blades 4 and 12 of an upper stage can also be housed in a lapping shape at the opening-closing fulcrum of the excavating agitating blades 13 and 11 of a lower stage, that is, on the outside of the respective support shafts 18. Therefore, a length of the excavating agitating blades 11 to 14 housed in a housing part H having a limited length can be lengthened, and a diameter D of an improved body to be created can be formed as a large diameter, and ground improving efficiency can be improved. A blade end part S' and a blade side end parts S of the excavating agitating blades 11 to 14 are formed in a sawtooth shape, and rotary excavation is facilitated.

3. 发明专利

JPH10219674A STIRRING SHAFT JOINT PART OF GROUND-IMPROVING EXCAVATOR 失效
公开(公告)号：JPH10219674A
公开(公告)日：1998-08-18
申请号：JP2744697
申请日：1997-02-12
申请人： SHIMIZU CONSTRUCTION CO LTD , MITSUI SHIPBUILDING ENG , JAPAN FOUND ENG
发明人： SHIMIZU KATSUMI , WATANABE TOSHIO , KUSAKARI TAICHI , KAMIMURA KAZUYOSHI , KITAGAWA KAZUNORI , NAKAMURA MASARU , IIDA NOBUO , TAKEISHI MINEYA , KAWAMOTO SATORU
IPC分类号： E02F5/02 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a stirring shaft joint part attempting prevention of contamination of an automatic coupler of a hydraulic piping for opening and closing of a stirring blade at the time of separating a stirring shaft of a ground- improving excavator. SOLUTION: A grout piping 33 and hydraulic pipings 40, 41 to open and close a stirring blade are provided on a stirring shaft 2, a male type joint part 20 is provided on one end of the stirring shaft 2, a female type joint part 21 in which the male type joint part 20 is fit is provided on the other end, and a connecting part 37 of the grout piping 33 on the male type joint part 20 is provided in the inside of the male type joint part 20. Thereafter, a connecting part 35 of the grout piping 33 on the female type joint part 21 is projected from the female type joint part 21 so as to be positioned below a male type automatic coupler 42 of a joint part of the hydraulic pipings 40, 41 until the stirring shafts 2 are completely separated from each other.

4. 发明专利

JP2005139632A Excavation method 有权
标题翻译：挖掘方法
公开(公告)号：JP2005139632A
公开(公告)日：2005-06-02
申请号：JP2003374345
申请日：2003-11-04
申请人： Japan Found Eng Co Ltd , 日本基礎技術株式会社
发明人： TAKEISHI MINEYA
IPC分类号： E21B7/20 , E02D7/00 , E02D7/20 , E02D7/22 , E21D1/03
摘要： PROBLEM TO BE SOLVED: To provide an excavation method applicable to a case of constructing a large diameter cast-in-place pile in a narrow place such as an underground space under a structure and an underground water level.
SOLUTION: A full rotation type all casing excavator installable in the narrow space, is installed in the narrow space lower than an underground water surface and restricted on the height from a construction base surface. A casing tube is installed in the full rotation type all casing excavator, and is rotatably pressed in by transmitting torque required for excavation of a reverse circulation construction method to the casing tube from the full rotation type all casing excavator. Sediment shaven off by an excavation bit interlocking with the torque of the casing tube, is discharged on the ground by the circulation of a solution, while circulating the solution having a specific gravity larger than water, in conformity with the reverse circulation construction method. The inside of the casing tube is excavated while preventing the inflow of underground water and the sediment into the casing tube.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种适用于在结构和地下水位下的地下空间狭窄的地方构造大直径现浇桩的情况的挖掘方法。解决方案：全旋转式全套式挖掘机可安装在狭窄的空间内，安装在比地下水面低的狭窄空间内，并从施工基础面限制高度。套筒管安装在全旋转式全套式挖掘机中，通过从全旋转全套式挖掘机向套管输送反向循环施工方法所需的扭矩，可旋转地被压入。通过与套管的扭矩相互联系的挖掘钻头使沉积物被刮除，通过溶液的循环在循环具有比水重的溶液循环的同时循环循环施工方法。套管内部被挖掘，同时防止地下水和沉积物流入套管。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004116023A Wire holder for wire saw, wire for wire saw, cutting removal system for existing pile, and cutting removal method for existing pile 有权
公开(公告)号：JP2004116023A
公开(公告)日：2004-04-15
申请号：JP2002276920
申请日：2002-09-24
申请人： East Japan Railway Co , Japan Found Eng Co Ltd , Koori Sangyo:Kk , Piece Diamond Kogyo Kk , Seiwa Daia:Kk , ピースダイヤモンド工業株式会社 , 日本基礎技術株式会社 , 有限会社誠和ダイア , 東日本旅客鉄道株式会社 , 株式会社郡産業
发明人： ISHIBASHI TADAYOSHI , NIIHORI TOSHIHIKO , SATO HARUO , FURUYAMA SHOICHI , SATO YUTAKA , MEJI MASAKI , TAKEISHI MINEYA , MEGURO MASA , TACHIKA MASAHARU , KORI SHUZO
IPC分类号： E02D9/04
摘要： PROBLEM TO BE SOLVED: To provide a wire holder for a wire saw capable of easily cutting an existing pile embedded in the ground at a portion lower than that of the ground surface, a wire for the wire saw, and a cutting removal system and method for an existing pile.
SOLUTION: The wire holder comprises a circular frame 11 allowing a substance 4 to be cut (an existing pile) to be inserted in the inside, a holder member 12 fitted to the frame 11 and capable of holding the middle of a wire 2 for a circular wire saw used for cutting the substance 4 in a state along the inner periphery of the frame 11, and sieves 13-16 fitted to the frame 11 turning the wire 2 from the direction along the inner periphery of the frame 11 to the direction crossing at right angles with the frame 11. The holding member 12 is so constituted as to be cut off by the wire 2 when the wire 2 for the wire saw travels.
COPYRIGHT: (C)2004,JPO

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