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1. 发明专利

JP2001003696A METHOD FOR CONTROLLING QUALITY DURING SPRAYING WORK OF CONCRETE AND THE LIKE 失效
公开(公告)号：JP2001003696A
公开(公告)日：2001-01-09
申请号：JP17212499
申请日：1999-06-18
申请人： UNIV TOKYO , SATO KOGYO , DENKI KAGAKU KOGYO KK , AOKI CORP , NMB KK , OHBAYASHI CORP , KAJIMA CORP , KUMAGAI GUMI CO LTD , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , TAKENAKA DOBOKU , TOKYU KENSETSU KK , TOBISHIMA CONSTRUCT CO LTD , NISHIMATSU CONSTR CO LTD , TAIHEIYO CEMENT CORP , HAZAMA GUMI , MAEDA CONSTRUCTION
发明人： UOMOTO TAKETO , KOBAYASHI YUJI , ARAKI AKITOSHI , KOMADA KENJI , TOMIYAMA TORU , TAYU MASATAKA , ONO TOSHIO , ISHIZEKI YOSHIKAZU , ASANO ATSUSHI , SAKAMOTO ATSUSHI , ANDO SHINICHIRO , ITO MASANORI , HIRAMA AKINOBU , MATSUURA SEIJI , AYADA TAKASHI , SUGIYAMA RITSU , AKASAKA YUJI
IPC分类号： G06F15/18 , E21D11/10 , G06F17/00 , G06F19/00 , G06N3/04 , G06Q10/04 , G06Q50/00 , G06Q50/08
摘要： PROBLEM TO BE SOLVED: To numerically determine conditions for blending sprayed concrete and conditions for construction work, both of which will meet target references. SOLUTION: In a first-stage neural network 2, arbitrary elements of conditions among elements of conditions for blending of base concrete and the like and elements of conditions for setting spray equipment and the like are used as input items and evaluation of a pulsating condition is estimated, and on condition that evaluation of the pulsating condition corresponds to a predetermined reference value or higher value, in a second-stage neural network 3 the evaluation of the pulsating condition estimated by the first-stage neural network 2 is used as an input item, together with the arbitrary elements of conditions among the elements of conditions for blending of base concrete or the like, the elements of conditions for setting spray equipment and the like, and elements of conditions for construction sites, to estimate the quality of concrete or the like to be sprayed.

2. 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.

3. 发明专利

JPH0868072A VARIABLE SECTIONAL UNDERGROUND HOLE EXCAVATOR 失效
公开(公告)号：JPH0868072A
公开(公告)日：1996-03-12
申请号：JP20246994
申请日：1994-08-26
申请人： MAEDA CONSTRUCTION , HAZAMA GUMI
发明人： AKASAKA YUJI , WAKIYAMA ICHIRO
IPC分类号： E02F5/08
摘要： PURPOSE: To improve workability by sliding a pair of drums in the axial direction, changing excavation width while placing a projecting piece at the discontinuous section of a sliding section and excavating a section corresponding to the discontinuous section by a bit mounted on the projecting piece. CONSTITUTION: An excavator 10 bringing a pair of drum components 18a near by an expansion-contraction mechanism 24 is lowered, cutter drums 18 are rotated, and an underground hole A in narrow width is excavated up to specified depth. The other drum component 18a is separated from one drum component 18a by the mechanism 24, and the width of the cutters 18 is increased while the revolution of the cutters 18 is continued and the width of the hole A is broadened. The excavator 10 is brought down, and the hole A in board width is formed continuously. Projecting pieces 18c are drawn out from discontinuous sections 18b formed to the drum components by expansion and contraction operation at that time. Since bits 21 for excavation are installed onto the surfaces of the projecting pieces 18c, the ground corresponding to the discontinuous sections 18b is also excavated. Accordingly, operation can be simplified, and excavation efficiency can be enhanced.

4. 发明专利

JPH09273136A CONSTRUCTION METHOD OF STRUCTURE IN CONCRETE DAM DIKE 失效
公开(公告)号：JPH09273136A
公开(公告)日：1997-10-21
申请号：JP8178596
申请日：1996-04-03
申请人： MAEDA CONSTRUCTION
发明人： SHINODA YOSHIO , AKASAKA YUJI , ONISHI MASAYA
IPC分类号： E02B7/00 , E04B5/02
摘要： PROBLEM TO BE SOLVED: To provide a construction method capable of promoting simplification of work and safety of work. SOLUTION: After the peripheral wall 14 providing for a space S having the upper end to be opened is formed inside 11 a concrete dam dike 10, a plurality of precast concrete members 16 bearing both ends on the upper end of the peripheral wall 14 are arranged across the opened end of the space S upward of the space S to form the ceiling section. By the constitution, the ceiling section is formed without using form for the ceiling section and timbering for bearing the form.

5. 发明专利

JPH04272326A METHOD FOR INSTALLING WATERPROOF SHEET ON CAST IN SITU DIAPHRAGM WALL 失效
公开(公告)号：JPH04272326A
公开(公告)日：1992-09-29
申请号：JP5608991
申请日：1991-02-27
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , AKASAKA YUJI , TAKAHASHI HIROSHI
IPC分类号： E02D5/20 , E02D31/02
摘要： PURPOSE:To install a waterproof sheet in the water stop condition with fittings at the same time when a reinforcing bar basket is installed. CONSTITUTION:A waterproof sheet 8 is installed to a side hardware 7 disposed at the side edge of right and left fittings 2, 2 at the outside of a leading element wall body 6 of an underground structure, the sheet adhering at the right and left edges beforehand. The waterproof sheet 8 is put into an excavated groove 1 integrally with the fitting 2, 2 at the same time when the fittings 2, 2 are installed Between the right and left fittings 2, 2 in an excavated groove 1', a reinforcing bar basket 9, in which a vertically long guide side frame 11 disposed at the right, and left edges of waterproof sheet 12 is installed in such a manner as to move back and forth and right and left, is installed at the right and left ends of external surface positioning at the outside of trailing element wall body 10 of an underground structured. When the reinforcing bar basket 9 is installed, the guide side frame 11 is put into the excavated groove 1' together with the waterproof sheet while connecting via side hardware 7' disposed at the side edge of fitting 2, 2 and a cut-off joint 15.

6. 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.

7. 发明专利

JPH07268903A GUIDE DEVICE FOR INITIAL EXCAVATION OF EXCAVATOR 失效
公开(公告)号：JPH07268903A
公开(公告)日：1995-10-17
申请号：JP5921894
申请日：1994-03-29
申请人： MAEDA CONSTRUCTION
发明人： ASAI HIDEAKI , AKASAKA YUJI , OGAWA AKIKAZU
IPC分类号： E02F5/02
摘要： PURPOSE:To enhance excavating accuracy and excavating efficiency by extremely improving a handling characteristic of a guide device itself, and speedily, easily and accurately installing the guide device in an excavation planning position. CONSTITUTION:A guide device has a device body 10 having a frame (f) of a rectangular frame shape to surround an excavator body 1, a fixing means 12 arranged on this device body 10 so as to position and fix the device body 10 to a guide wall 11 and a first support means 13 and a second support means 14 to support four side surfaces of the excavator body 1. The fixing means 12 has actuating members 12a and 12a capable of respectively coming into pressure contact with wall surfaces 11a and 11a and driving mechanisms 12b and 12b to actuate these actuating members. The respective support means are movably arranged in the direction for separating from a side surface of the excavator body 1.

8. 发明专利

JPS62156420A SOLIDIFYING WORK OF STABILIZER LIQUID 失效
公开(公告)号：JPS62156420A
公开(公告)日：1987-07-11
申请号：JP29620385
申请日：1985-12-27
申请人： MAEDA CONSTRUCTION
发明人： TABATA NEN , KAYAMA YASUHARU , AKASAKA YUJI
IPC分类号： E02D5/18
摘要： PURPOSE:To raise the quality of stabilizer liquid by preventing the partial coagulation of the stabilizer liquid by mixing the stabilizer liquid with a solidifying agent in a pipe mixer. CONSTITUTION:A solidifying liquid of slurry form, prepared by mixing a solidifying agent with water with stirring,and a stabilizer liquid are sent under pressure to a pipe mixer 4 while automatically controlling the mixing ratios of them. They are uniformly mixed in the mixer 4 and placed into an excavated pit 19. Since the solidifying agent is uniformly dispersed into the stabilizer liquid, a stable solidifying liquid can be obtained without causing partial coagulation, the construction period can be shortened, and the quality of the construction work can be raised.

9. 发明专利

JP2002213194A METHOD FOR REINFORCING/REPAIRING LINING CONCRETE 失效
公开(公告)号：JP2002213194A
公开(公告)日：2002-07-31
申请号：JP2001007006
申请日：2001-01-15
申请人： MAEDA CONSTRUCTION
发明人： MORI HARUO , SHIDA KOJI , AKASAKA YUJI , SHIRANE YUJI
IPC分类号： E21D11/10
摘要： PROBLEM TO BE SOLVED: To provide a method for reinforcing/repairing lining concrete, which minimizes an occupation space required for reinforcement/repairing over a repairing period and a curing period for the lining concrete, and prevents separation of a repairing material of the lining concrete from the same. SOLUTION: The method for repairing the lining concrete is carried out by arranging a precast form 12 along the lining concrete 11A to be repaired with a predetermined gap t defined therebetween, fixing the precast form 12 to the lining concrete 11A by using fixing means 16, and injecting a grout material 17 into the gap between the precast form 12 and the lining concrete 11A. According to the method, the precast form 12 is divided into a plurality of form sections, and whenever mounting of the divided precast form sections 12 is completed over a predetermined range, the grout material 17 is injected into the gap.

10. 发明专利

JPH09228347A CONSTRUCTION METHOD OF TEMPORARY DRAINAGE CANAL IN CONCRETE DAM BANK 失效
公开(公告)号：JPH09228347A
公开(公告)日：1997-09-02
申请号：JP6541896
申请日：1996-02-27
申请人： MAEDA CONSTRUCTION
发明人： UEBABA YASUSHI , AKASAKA YUJI
IPC分类号： E02B7/00 , E02B7/08
摘要： PROBLEM TO BE SOLVED: To reduce time and labor for construction, shorten a terms of works and to reduce a cost, with safety without specialist of a high order. SOLUTION: A hollow tunnel of the precast reinforced concrete member formed after the pattern of a sectional shape of a temporary drainage to be constructed, has a discharge ditch of which one end is connected with an discharge box 5, on the inner face of the top end along the axial direction. The discharge box 5 has a discharge port, and the guide paths 8, 8' of internally reclaimed grout G, formed on the inside of the both sides from an upper part toward a lower part, and the guide paths 8, 8' are respectively provided with discharge openings 11, 11' on plural points, to be used as a temporary drainage canal cell 1. A required number of the temporary drainage canal cells 1 are connected and joined in a body along an installation part of the temporary drainage canal, the concrete for the bank, is placed by a predetermined height in a state that the periphery of the bottom face of the connected and joined temporary drainage canal cells 1, is not covered, and a consolidification material of high fluidity is placed, to bury the temporary drainage canal cells 1.

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