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1. 发明专利

JPS6164963A Peeling-off of surface reinforced concrete structure by current supply heating of iron wire 失效
标题翻译：通过钢丝电流加热对表面强化混凝土结构的剥离
公开(公告)号：JPS6164963A
公开(公告)日：1986-04-03
申请号：JP18450284
申请日：1984-09-05
申请人： Maeda Construction , Yoshio Kasai
发明人： NAKAGAWA WAHEI , AKIYAMA NOBUYOSHI , KASAI YOSHIO
IPC分类号： E04G23/08

2. 发明专利

JPS62236970A REINFORCEMENT CURRENT SUPPLY HEATING STRUCTURE FOR DISASSEMBLING REINFORCED CONCRETE STRUCTURE 失效
公开(公告)号：JPS62236970A
公开(公告)日：1987-10-17
申请号：JP8160386
申请日：1986-04-09
申请人： MAEDA CONSTRUCTION , KASAI YOSHIO
发明人： NISHIDA ITARU , NAKAGAWA WAHEI , KASAI YOSHIO
IPC分类号： E04G23/08

3. 发明专利

JPH0868215A HEAVY WEIGHT REINFORCED CONCRETE SLAB AND ELECTRICAL HEATING DEMOLITION METHOD 失效
公开(公告)号：JPH0868215A
公开(公告)日：1996-03-12
申请号：JP20393494
申请日：1994-08-29
申请人： MAEDA CONSTRUCTION
发明人： NAKAGAWA WAHEI , KAMATA KIYOMASA , KOBAYASHI TATEO , KUMEGAWA SADATSUNE
IPC分类号： E04G23/08
摘要： PURPOSE: To demolish a skeleton easily by placing a group of power supply special reinforcements between tension bars and compression bars in a heavy weight reinforced concrete slab scheduled to be demolished by electrical heating. CONSTITUTION: A secondary breaking of a heavy weight reinforced concrete slab 10 is executed with a hydraulic breaker as a precondition of the breaking. Power supply exclusive reinforcements 13 are placed preliminarily at a position which divides in equal two parts a spacing between tensile reinforcements 11 and compression reinforcements which constitute main reinforcements at the same pitches. Then, the concrete slab 10 is demolished by applying electric power at low voltage and large current to the tensile reinforcements 11 and causing cracks between the tensile reinforcements 11 by the thermal expansion of the tensile reinforcements 11 so that the reinforced concrete layer down to the reinforcements 13 from the surface may be removed with a hydraulic breaker. Then, electric power is supplied to the reinforcements 13 in a similar manner and heated, thereby generating cracks between the reinforcements 13 by the thermal expansion and demolishing and removing the concrete layer fragmentarily. Electric power is supplied to the compression reinforcements 12 and heated, thereby breaking the residual part of the concrete slab 10 with the hydraulic breaker and demolishing concrete slab 10.

4. 发明专利

JPS6314963A CONSTRUCTION METHOD FOR DISASSEMBLING REINFORCED CONCRETE STRUCTURE BY CURRENT SUPPLY HEATING 失效
公开(公告)号：JPS6314963A
公开(公告)日：1988-01-22
申请号：JP15933586
申请日：1986-07-07
申请人： MAEDA CONSTRUCTION , KASAI YOSHIO
发明人： NAKAGAWA WAHEI , NISHIDA ITARU , KASAI YOSHIO
IPC分类号： E04G23/08

5. 发明专利

JP2001040876A CONCRETE FILLING METHOD IN STEEL PIPE COLUMN 失效
公开(公告)号：JP2001040876A
公开(公告)日：2001-02-13
申请号：JP21763199
申请日：1999-07-30
申请人： MAEDA CONSTRUCTION
发明人： MAEDA MATABEE , SHINODA YOSHIO , TAGAWA AKIRA , IMAMURA TERUTAKE , TERANISHI KOJI , NAKAGAWA WAHEI
IPC分类号： E04G21/04
摘要： PROBLEM TO BE SOLVED: To provide a concrete filling method to a steel pipe column which can be easily controlled during work without requiring the use of high-fluidity concrete or the drilling of a hole for concrete placement at the bottom of the steel pipe column. SOLUTION: A concrete carrying pipe 15 attached with a continuous kneading box device 10 at one end portion is suspended inside a steel pipe 16, concrete is continuously supplied from other end portion of a concrete carrying pipe 15, concrete is filled into a steel pipe column 16 through a continuous kneading box device 10, at that time, the concrete carrying pipe 15 can be raised together with the continuous kneading box device 10 in response to the concrete filling level in the steel pipe column 16 in the configuration.

6. 发明专利

JPH04166593A BORING METHOD OF UNDERGROUND BURIED WALL 失效
公开(公告)号：JPH04166593A
公开(公告)日：1992-06-12
申请号：JP29104590
申请日：1990-10-29
申请人： MAEDA CONSTRUCTION
发明人： SUGAWARA SUKEYUKI , NAKAGAWA WAHEI
IPC分类号： E02D5/20 , E21D5/01 , E21D9/06
摘要： PURPOSE:To make it possible to bore a hole economically by filling a hollow section of a reinforced cage with non-heat resisting concrete, burying the cage in a vertical shaft, and heating the non-heat resisting concrete to break after placing concrete in the cage. CONSTITUTION:A circular hollow section 3 is provided to the lower part of a reinforced cage 4, and the hollow section 3 is filled with non-heat resisting concrete 5. After that, the cage 4 is lowered to the inside of a vertical shaft 1, and concrete is placed from a tremie pipe to form a concrete side wall after the tremie pipe is inserted into the cage 4. Then, another side wall is connected to the side wall to form a cylinder having a square section. Earth in a portion surrounded by the side walls is removed with an excavation device. In addition, after a hot wind is blown against the non-heat resisting concrete 5 of the side wall from a disposal device to soften, broken pieces of the concrete 5 are absorbed to bore a hole in the side wall.

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