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1. 发明专利

JP2000345571A CONSTRUCTING METHOD FOR FOUNDATION FOR STEEL TOWER 失效
公开(公告)号：JP2000345571A
公开(公告)日：2000-12-12
申请号：JP26776599
申请日：1999-09-21
申请人： TOKYO ELECTRIC POWER CO , MAEDA CONSTRUCTION
发明人： YOSHII YUKIO , TANABE SHIGERU , IIJIMA MASAYOSHI , YOKOZAWA KAZUO , MISHIMA TETSUYA
IPC分类号： E02D27/42
摘要： PROBLEM TO BE SOLVED: To largely improve the anchorage strength of the leg material of a large-sized steel tower and a ground. SOLUTION: In the reinforcing method of a steel-tower foundation in which a bearing plate 6 projected from a leg material 4 is installed for reinforcing the foundation section of the leg material 4 for the steel tower inserted into a ground and concrete is placed around the bearing plate 6 and the foundation is formed, an analytic model in which a reinforcing bar 5 is arranged so as to enclose the bearing plate 6 in the vicinity of the bearing plate 6 is prepared. The model is analyzed numerically and anchorage strength is evaluated, and the steel-tower foundation is constructed according to the analytic result.

2. 发明专利

JP2000282486A FIXING METHOD FOR LEG MEMBER OF STEEL TOWER FOOTING 失效
公开(公告)号：JP2000282486A
公开(公告)日：2000-10-10
申请号：JP9412899
申请日：1999-03-31
申请人： TOKYO ELECTRIC POWER CO , MAEDA CONSTRUCTION
发明人： YOSHII YUKIO , TANABE SHIGERU , IIJIMA MASAYOSHI , YOKOZAWA KAZUO , MISHIMA TETSUYA
IPC分类号： E02D27/42
摘要： PROBLEM TO BE SOLVED: To enable a rational designing of an anchor member for a large steel tower by calculating a shearing stresss, bending stress or the like of the member with respect to an axial load applied on a main leg column of the steel tower by the use of a calculation equation based on an actual scale experiment. SOLUTION: A mounting plate 53 is welded to a lower part of a main leg column 52 of a steel tower, then an anchor member 54 formed by combining two angle members is mounted by bolts 55, and burried in footing concrete so as to suport an axial load acting on the column 52. In designing the member 54, by the use of a calculation equation determined based on an actual scale experiment, data of the member 54, plate 53, concrete and the like as well as a design load of the column 52 is input for calculating a shearing stress and bending stress of the member 54, a support stress of the concrete, a rigidity ratio between the member 54 and the plate 53. Then, it is confirmed that those values are in an allowable range. Accordingly, the member 54 can be rationally designed with respect to the design load of the column increasing according to increase in the size of steel tower.

3. 发明专利

JPH0762612A JOINT METHOD OF PRECAST CONCRETE FORM 失效
公开(公告)号：JPH0762612A
公开(公告)日：1995-03-07
申请号：JP21456693
申请日：1993-08-30
申请人： MINI PUBLIC WORKS , SENTAN KENSETSU GIJUTSU CENTER , OHBAYASHI CORP , CHICHIBU ONODA CEMENT CORP , KAJIMA CORP , SATO KOGYO , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , TAKENAKA DOBOKU , TOBISHIMA CONSTRUCT CO LTD , NISHIMATSU CONSTR CO LTD , JAPAN DEV & CONSTRUCTION , FUJITA CORP , FUDO CONSTRUCTION CO , MAEDA CONSTRUCTION
发明人： SUGIYAMA ATSUSHI , NUKAZAWA KOUJI , HARADA AKIRA , OMORI TOSHITAKA , SHINODA YOSHINOBU , HIRONAKA YOSHIAKI , ABE HISAO , OTOMO TAKESHI , ANDO SHINICHIRO , ISHIZAKI KANJIRO , OGAWARA SHIGEAKI , MATSUI KENICHI , TAKESHITA HARUYUKI , YOSHINO TSUGUHIKO , NAKAJIMA KENJI , YOKOZAWA KAZUO
IPC分类号： E01D19/02 , E04B1/16 , E04B2/86
摘要： PURPOSE:To obtain a joint method of precast concrete forms by which the work is easy and does not require a high assembling accuracy and dispenses with after reinforcements and external forms and further, by which the construction period is reduced and labors are saved. CONSTITUTION:Joint rods 4 parallelly arranged with distributing rods 3, 3 buried in respective PC forms 1, 1 and provided with a specified lap length (1), in the inside of the joint 2 between the PC forms 1, 1 connected to each other, are arranged so as to straddle the PC forms 1, 1 connected with a specified distance (d) from the distributing rods 3, 3. Thereafter, the secondary concrete C2 is placed.

4. 发明专利

JP2000073339A INSPECTION GALLERY IN FILL-TYPE DAM AND CONSTRUCTION METHOD OF INSPECTION GALLERY IN FILL-TYPE DAM 失效
公开(公告)号：JP2000073339A
公开(公告)日：2000-03-07
申请号：JP20389098
申请日：1998-07-17
申请人： NATL RES INST OF AGRICULTURAL , MAEDA CONSTRUCTION , KUMAGAI GUMI CO LTD , ZENITAKA CORP , TOBISHIMA CONSTRUCT CO LTD , JAPAN DEV & CONSTRUCTION , FUJIMI KOKEN KK , MAEDA SEISAKUSHO
发明人： NAKAJIMA KENJIRO , YASUNAKA MASAMI , ASANO ISAMU , YOKOZAWA KAZUO , AKASAKA YUJI , HARA NATSUO , MORIMOTO HIDEKI , TAKADA TOSHIYUKI , IWASAKI NORIO , HIROSE SHIGEMICHI , SAWARA SEIYA , HONGO YUTAKA , YAZAWA TSUGIO
IPC分类号： E02B7/00 , E02B7/06 , E02D27/40
摘要： PROBLEM TO BE SOLVED: To provide an inspection gallery in a fill-type dam and a construction method of the inspection gallery in the fill-type dam, shortening a construction period, improving workability through the decrease of work processes and reducing the total cost. SOLUTION: Invert concrete 4 is placed at a bottom part of a ditch part 20 provided by excavating a foundation rock bed of a fill-type dam, and an arch 6 of an opening part of an inspection gallery 1 is constructed on the invert concrete 4. Steel fiber reinforced concrete is then placed inside the ditch part 20 and on the outer peripheral side of the arch 6 of the opening part of the inspection gallery 1 to form concrete 5 for reinforcing the outer peripheral part of the inspection gallery 1.

5. 发明专利

JPH0868121A JOINT STRUCTURE BETWEEN PRECAST CONCRETE MEMBERS 失效
公开(公告)号：JPH0868121A
公开(公告)日：1996-03-12
申请号：JP20750294
申请日：1994-08-31
申请人： MAEDA CONSTRUCTION
发明人： YOKOZAWA KAZUO , SHINODA YOSHIO , TABATA MINORU , HARA NATSUO
IPC分类号： E04B1/61
摘要： PURPOSE: To firmly and easily connect precast concrete members together. CONSTITUTION: This joint structure between two or more precast concrete members 1 is provided with reinforcing bars 2 buried in the precast concrete members 1 and connecting reinforcing bars 3 surrounding the periphery of the reinforcing bars 2 and partially exposed to the outside. A connecting bar 4 is arranged near the connecting reinforcing bars 3 of the precast concrete members 1 to be connected, and concrete 5 is placed around the connecting reinforcing bars 3 and the connecting bar 4.

6. 发明专利

JP2003213698A BRIDGE AND CONSTRUCTION METHOD THEREOF 审中-公开
公开(公告)号：JP2003213698A
公开(公告)日：2003-07-30
申请号：JP2002007473
申请日：2002-01-16
申请人： MAEDA CONSTRUCTION
发明人： YAMAMURO NORIYUKI , YOKOZAWA KAZUO , SHIBANUMA MITSURU , KAYAMA YASUHARU , SHINOHARA KEIJI
IPC分类号： E02D27/10 , E01D1/00 , E01D2/00 , E01D19/02 , E01D21/00 , E01D101/30
摘要： PROBLEM TO BE SOLVED: To provide a bridge capable of minimizing the occupied area on a road according to a work and shortening the term of works, thereby minimizing the influence on traffic, and a construction method thereof. SOLUTION: A foundation work 13 is formed of a concrete block stacked body consisting of a stack of frame-like concrete blocks, and concrete and earth filled stepwise in the concrete block stacked body. A pier 14 is formed of a precast buried form, a steel frame set in the precast buried form, and concrete filled in the precast buried form. A superstructure 15 is formed of a steel member. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2000352030A LIGHTWEIGHT CONCRETE CAISSON AND WORK EXECUTION METHOD USING THE SAME 失效
公开(公告)号：JP2000352030A
公开(公告)日：2000-12-19
申请号：JP16751499
申请日：1999-06-14
申请人： PORT & HARBOUR RES INST MINIST , TAIHEIYO CEMENT CORP , MAEDA CONSTRUCTION
发明人： YOKOTA HIROSHI , OKAMOTO YUKIHISA , TOCHIGI TAKASHI , SASAJIMA MASAO , MATSUNO RIE , YOKOZAWA KAZUO , WATABE TADASHI , FUNAHASHI MASASHI , MIWA TOSHIHIKO
IPC分类号： E02B3/06 , E02D23/00
摘要： PROBLEM TO BE SOLVED: To provide a lightweight concrete caisson simple in work execution capable of shortening a construction period, reducing a cost and obtaining a high quality and strength in addition after completion, and provide a caisson work execution method using the lightweight concrete. SOLUTION: This concrete caisson comprises inside filling storage parts 3 formed of a floor board 1, outer walls 2 erected from the floor board 1, and partition walls 7 connecting the outer walls 2. The caisson must be installed fixedly to a sea bottom. The floor board 1, outer walls 2, and whole or a part of the partition walls 7 are formed with low water absorbing high durability lightweight concrete so that a draft at the time of being floated becomes shallower than that provided when ordinary concrete is used.

8. 发明专利

JPH09287397A REPAIR METHOD OF TUNNEL-LINING WALL SURFACE 失效
公开(公告)号：JPH09287397A
公开(公告)日：1997-11-04
申请号：JP9873696
申请日：1996-04-19
申请人： MAEDA CONSTRUCTION , FUJIMI KOKEN KK
发明人： YOKOZAWA KAZUO , KAYAMA YASUHARU , AKASAKA YUJI , GOSOU AKIRA
IPC分类号： E21D11/10
摘要： PROBLEM TO BE SOLVED: To provide the repair method of deteriorated lining wall surfaces of a turnnel efficiently without largely shrinking the opening of the tunnel. SOLUTION: A new invert section 12 is formed to a floor section excepting both side sections of the floor of a cleaned tunnel wall surface 11, and the tunnel wall surface 11 is covered with side-wall form members 13 having an L-shaped cross sectional shape and consisting of a mortar member, in which a fiber-reinforced material is mixed, and top-section form members 14 having an arcuate cross sectional shape as a whole and composed of the mortar member, in which the fiber-reinforced material is mixed. Mortar 15 is injected into voids among the top-section form members 14 and the side-wall form members 13 and the tunnel wall surface 11 covered with both form members 13 and 14, and the tunnel wall surface 11 and the top-section form members 14 and the side-wall form members 13 covering the tunnel wall surface 11 are unified.

9. 发明专利

JP2003193495A UNDERGROUND STRUCTURE CONSTRUCTING METHOD 审中-公开
公开(公告)号：JP2003193495A
公开(公告)日：2003-07-09
申请号：JP2001397596
申请日：2001-12-27
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , YOKOZAWA KAZUO , TAKEDA MASASHI , SHIBANUMA MITSURU , KANEDA SHIGEKI , SHINOHARA KEIJI
IPC分类号： E02D29/045 , E04B1/61 , E21D13/00
摘要： PROBLEM TO BE SOLVED: To provide an underground structure constructing method, which takes up only a small working area in a road during the construction of an underground structure, contributes to a shortened occupation period or construction period, can reduce the number of employed timbering such as cut beams to a minimum extent even if an interval between earth retaining walls is extended according to the width of the underground structure, to thereby improve the workability of the construction. SOLUTION: According to the method, the earth retaining walls 54, 54 are embedded in the ground on both sides of a plot in which the underground structure 53 is to be constructed, and the ground 52 between the earth retaining walls 54, 54 is excavated down to a predetermined depth while upper portions of the respective earth retaining walls 54, 54 are exposed, followed by erecting a precast concrete girder member 56a over the exposed portions of the earth retaining walls 54, 54, to thereby form a top slab portion 56 of the underground structure. Then, an area below the top slab portion 56 is excavated to form an excavated hole 65 having a predetermined depth, and a bottom slab portion 59 and side wall portions 63 of the underground structure 53 are formed on a bottom portion and side portions of the excavated hole 65, respectively, followed by connecting the top slab portion 56 to the side wall portions 63, to thereby construct the underground structure 53. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2000154517A MANUFACTURE OF CAISSON FOR OCEAN 失效
公开(公告)号：JP2000154517A
公开(公告)日：2000-06-06
申请号：JP33164298
申请日：1998-11-20
申请人： HOKKAIDO KAIHATSUKYOKU MURORAN , MAEDA CONSTRUCTION , KAWASAKI STEEL CO
发明人： KOYAMA YOSHIAKI , OKAZAKI MITSUNOBU , UKITSU KENICHI , YOKOZAWA KAZUO , WATABE TADASHI , FUNAHASHI MASASHI , MORIKAWA TAKAYOSHI , OKI TAKESHI
IPC分类号： E02B3/06 , E02D23/00
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for a caisson for ocean capable of shortening construction term, saving human labor, and improving the durability of concrete for a long time. SOLUTION: This manufacturing method for a caisson for ocean has a process in which a platelike precast embedded frame 11 is manufactured, a process in which a framelike precast embedded frame 12 is manufactured, and a process in which the platelike precast embedded frame 11 is assembled and an outer frame 13 of the caisson for ocean is formed. It is composed of a process in which a steel frame 14 is erected on an inner side of the outer frame 13, a process in which a reinforcing bar 17 is integrated into the steel frame 14, a process in which a framelike precast embedded frame 12 is arranged on an inner side of the steel frame 14 to form an inner frame of the caisson for ocean, and a process in which concrete 16 is placed in a clearance between the outer frame 13 and the inner frame 12.

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