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1. 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.

2. 发明专利

JPH11350867A SEGMENT PIECE AND CONSTRUCTION METHOD OF UNDERGROUND STRUCTURE 失效
公开(公告)号：JPH11350867A
公开(公告)日：1999-12-21
申请号：JP16005098
申请日：1998-06-09
申请人： KATO KENSETSU KK , NIPPON KOKAN LIGHT STEEL KK
发明人： HAMADA YOSHIYUKI , TAKEDA MICHIYA , SATO KAZUYOSHI , NAGAOKA SHOGO , ICHIKAWA HIROYASU
IPC分类号： E02D5/38 , E02D29/045 , E21D5/10 , E21D13/00
摘要： PROBLEM TO BE SOLVED: To provide a segment piece which makes it unnecessary to hang a reinforcing bar basket inside an underground structure and arrange a main reinforcing bar and a belt reinforcing bar and a construction method of the underground structure by using an underground set body instead of the main reinforcing bar and the belt reinforcing bar required in the underground structure. SOLUTION: Steel segment pieces 1 constitute an underground set body which becomes a pattern of steel-concrete composite underground structure by connecting them mutually. When the underground set body is constructed, sleeves 22A, 22B pressed on each reinforcing bar 21 are mutually connected by a stud bolt 23 to integrate them, are inserted into mutual communicating reinforcing bar holes 15, and are fixed on the underground set body. Consequently, the integrated reinforcing bars 21 can be regarded as a main reinforcing bar of the underground structure. Moreover, a main beam 12 integrated on a plan is regarded as a belt reinforcing bar of the underground structure.

3. 发明专利

JPH11210370A SEGMENT PIECE AND UNDERGROUND STRUCTURE CONSTRUCTING METHOD 失效
公开(公告)号：JPH11210370A
公开(公告)日：1999-08-03
申请号：JP1862098
申请日：1998-01-30
申请人： KATO KENSETSU KK , NIPPON KOKAN LIGHT STEEL KK
发明人： HAMADA YOSHIYUKI , TAKEDA MICHIYA , SATO KAZUYOSHI , NAGAOKA SHOGO
IPC分类号： E21D5/06 , E21D11/04
摘要： PROBLEM TO BE SOLVED: To provide a constructing method for segment pieces and an underground structure whereby the earth and sand as excavated material and the air will never remain between the underground set body and placed concrete when the underground structure is being constructed using the underground set body consisting of segment pieces. SOLUTION: Each segment piece 1 is composed of a skin plate 11, main girder 12, joint plate 13, and vertical rib 14. These members, (excluding main girder) are formed from steel plate having a thickness of approx. 3-25 mm, which are joined together by welding. The main girder 12 and joint plate 13 are furnished with a number of connecting holes 15 for coupling together the segment pieces 1 by means of bolt joining. As exception, the main girder 12 is formed from a steel material having a trapezoidal section, and welding is made so that the inner surface of the main girder 12 intersects the skin plate 11 at an obtuse angle of 100-105 deg.

4. 发明专利

JP2000087679A UNDERGROUND STRUCTURE, AND ITS CONSTRUCTING METHOD 失效
公开(公告)号：JP2000087679A
公开(公告)日：2000-03-28
申请号：JP25625798
申请日：1998-09-10
申请人： KATO KENSETSU KK , NIPPON KOKAN LIGHT STEEL KK
发明人： HAMADA YOSHIYUKI , TAKEDA MICHIYA , SATO KAZUYOSHI
IPC分类号： E02D23/00 , E21D5/10 , E21D5/11
摘要： PROBLEM TO BE SOLVED: To reduce the execution cost and the labor for a ground having a soft upper layer and a hard lower layer. SOLUTION: This underground structure 1 is constructed in a ground having a soft upper layer and a hard lower layer. The underground structure 1 is provided with an upper layer structure 2 and a lower layer structure 3. The upper layer structure 2 is immersed by excavating the inner side of the immersion body 4 by press-fitting a short cylindrical immersion body 4 in the ground in a soft layer. The lower layer structure 3 is immersed by excavating the ground under the upper layer structure 2 in a cylindrical shape in a hard layer, and installing a short cylindrical corrugated steel plate on its inner wall in a connecting manner to the upper layer structure 2. One underground structure 1 is constructed by integratedly immersing the upper layer structure 2 and the lower layer structure 3.

5. 发明专利

JPH11210389A COUPLING PART REINFORCING STRUCTURE OF STEEL SEGMENTS 失效
公开(公告)号：JPH11210389A
公开(公告)日：1999-08-03
申请号：JP2520198
申请日：1998-01-23
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , NAGAOKA SHOGO , HAMADA YOSHIYUKI , TAKEDA MICHIYA
IPC分类号： E21D5/10 , E21D11/04 , E21D11/14
摘要： PROBLEM TO BE SOLVED: To provide a structure of reinforcing a coupling part when a vertical shaft or a tunnel is constructed, in which a hollow cylinder consisting of a plurality of steel segments coupled together is inserted by forced fitting into the ground. SOLUTION: Along main girders 3 or join plates 5, reinforcing metal fittings 21 and 23 are furnished to prevent the joined faces of main girders 3 or joint plates 5 from being opened in the condition that steel segments 1 are coupled together. Each main girder 3 or joint plate 5 has a structure as protruding to outside a skin plate 9, and grooves 25 in the metal fittings 21 and 23 are fitted on the protruding part as a join. In the fit condition, a bolt is inserted through each bolt hole furnished in the metal fittings and skin plate 9, and the metal fittings 21 and 23 are attached by fastening with a nut.

6. 发明专利

JPH11210369A UNDERGROUND SUBMERGED OBJECT 失效
公开(公告)号：JPH11210369A
公开(公告)日：1999-08-03
申请号：JP2520098
申请日：1998-01-23
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , HAMADA YOSHIYUKI , TAKEDA MICHIYA
IPC分类号： E21D5/04 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To reduce the time and costs for the constructing works of a starting shaft or arrival shaft 13 when a tunnel is excavated by a shield machine and eliminate the conventional ground improving work and chipping work. SOLUTION: A plurality of pieces as constituent members 9 are coupled together to form a hollow cylinder 7, and it is set underground through internal excavation and pressurizing from the top so that a starting shaft 5 or arrival shaft 13 is constructed. Among the pieces 9, the one to constitute a starting hole 11 or arriving hole 15 is made of a material machinable by a shield machine 1. The shield machine 1 is put down in the starting shaft 5 and the operation is started at the starting hole 11. At this time, the pieces 9 are machined by the cutter bit of the shield machine 1. After a specified course of tunnel 3 is excavated, the piece constituting the arriving hole 15 is machined when the arrival shaft 13 is being reached.

7. 发明专利

JPH11152985A SEGMENT PIECE AND CONSTRUCTION METHOD OF UNDERGROUND STRUCTURE 失效
公开(公告)号：JPH11152985A
公开(公告)日：1999-06-08
申请号：JP32107697
申请日：1997-11-21
申请人： KATO KENSETSU KK , NIPPON KOKAN LIGHT STEEL KK
发明人： HAMADA YOSHIYUKI , TAKEDA MICHIYA , SATO KAZUYOSHI
IPC分类号： E02D23/00 , E21D5/10 , E21D11/14
摘要： PROBLEM TO BE SOLVED: To provide a segment piece and the construction method of an underground structure wherein a reinforcement cage is hung in the inside and which are unnecessary for disposing a main reinforcing bar and a hoop reinforcement by using the main reinforcing bar and the hoop reinforcement required for the underground structure for a settling body. SOLUTION: A settling body being the original form of the underground structure of steel and concrete composite is provided by mutually connecting steel-made segment pieces 1. At the time of construction of the settling body, mutual main girders 12 abutted on faces are tightened with long nuts 17 and short nuts 18 screwed to the male screw of one end (lower side) of each reinforcing bar 16. At this time the main reinforcing bars of the underground structure are formed at prescribed pitches by joining each reinforcing bar 16 inserted in a mutually communicating reinforcing bar hole into one piece. In addition, the main girder 12 integrated in a plane is regarded as the hoop reinforcement of the underground structure.

8. 发明专利

JPH11200790A CONNECTING STRUCTURE OF PIECE MEMBER CONSTITUTING UNDERGROUND IMMERSED BODY 失效
公开(公告)号：JPH11200790A
公开(公告)日：1999-07-27
申请号：JP1763998
申请日：1998-01-14
申请人： NIPPON KOKAN LIGHT STEEL KK , KATO KENSETSU KK
发明人： SATO KAZUYOSHI , HAMADA YOSHIYUKI , TAKEDA MICHIYA
IPC分类号： E21D5/06 , E21D11/04 , E21D11/14
摘要： PROBLEM TO BE SOLVED: To increase connecting strength by fitting I-shaped sectional male connecting sections installed at the other ends of adjacent piece members to U-shaped sectional female connecting sections mounted at one ends of the piece member. SOLUTION: A segment piece member 1 made of steel as a cylindrical body immersed in an underground section at the time of the construction of a shaft is composed of a pair of upper-lower peripheral main girders 3, joint plates 5 set up at both ends of the main girders 3, a plurality of vertical ribs 7, reinforcing girders 13, skin plates 9, etc. U-shaped sectional female connecting sections 21 are fitted at the upper ends of the plates 9, and I-shaped sectional male connecting sections 25, in which the plates 9 are extended downwards, are installed at lower ends. When the adjacent pieces 1 are coupled, the plates 5 are connected by bolts and joined in the peripheral direction while the male connecting sections 25 of the upper-side pieces 1 are fitted to the female connecting sections 21 of the lower-side pieces 1 and clamped by bolts and nuts. Accordingly, connecting strength at a time when bending moment is applied to the hollow cylindrical body by rolling at the time of an earthquake can be improved, and the number of the bolts is not increased and site works can be facilitated because splice plates are not required.

9. 发明专利

JP2000034727A ULTRASONIC TYPE DRIVING METHOD AND DRIVING MACHINE THEREFOR 失效
公开(公告)号：JP2000034727A
公开(公告)日：2000-02-02
申请号：JP20246498
申请日：1998-07-17
申请人： KATO KENSETSU KK , KUWAYAMA TADASHI
发明人： TAMURA FUYUO , TAKEDA MICHIYA , KUWAYAMA TADASHI
IPC分类号： E02D7/18
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic type driving method and a driving machine therefor capable of driving in without causing any trouble even a driven article hits a boulder stone or a hard layer in the ground. SOLUTION: A steel sheet pile 12 is sandwiched by a case 13 from both sides. A slide plate 16 in the case 13 is pushed against the steel sheet pile 12 by the restoring force of a spring 17. Leakage is prevented by a water stop material 15 and the interior of the case 13 is filled with water, oil, or the like through a fluid filling hole 18. An oscillating element 11 oscillating ultrasonic oscillation is inserted into the case 13 and the oscillating surface 20 is arranged towards the steel sheet pile 12 in the liquid 14 of water or oil or the like. A lifting ring 19 is hanged down with a crane or the like, the steel sheet pile 12 is set on the ground, and ultrasonic oscillation is oscillated from the oscillating element 11.

10. 发明专利

JP2001020272A POLYGONAL GROUND IMPROVEMENT WORK METHOD 失效
公开(公告)号：JP2001020272A
公开(公告)日：2001-01-23
申请号：JP18999199
申请日：1999-07-05
申请人： KATO KENSETSU KK
发明人： MAKINO MASAMI , SATO TOSHIYUKI , KATO KOJI , TAKEDA MICHIYA , ITO HIROKUNI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To economically perform stable ground improvement work assuring less deformation, displacement or breakage against upper or lateral load. SOLUTION: In a first process, one solidified improved columnar body extending vertically is formed by agitating and mixing together an improving material and earth of soft ground in the ground. Next, in the second process, one solidified improved wall body 4 extending in vertical direction is formed by connecting together a plurality of improved columnar bodies by repeating the first process. Next in the third process, the second process is repeated and a plurality of improved wall bodies 4 are connected together in the horizontal direction, thereby forming a honeycomb-shaped (on a plan view) solidified improved structural body 1 is formed. In addition, in the fourth process, improved connected bodies 5A, 5B connecting a plurality of neighboring improved wall bodies 4 are formed by agitating and mixing the upper end portions and lower end portions of unimproved soil in each cylindrical hole 3 surrounded by a plurality of improved wall bodies 4 together with the improving material by means of mixing apparatus. In this way, a cubic improved structural body 1 can be created.

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