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1. 发明专利

JPH0243410A METHOD FOR BUILDING VERTICAL HOLE ON UNDERGROUND STRUCTURE 失效
公开(公告)号：JPH0243410A
公开(公告)日：1990-02-14
申请号：JP19487788
申请日：1988-08-04
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , NAKAMURA TOSHIO , TABATA MINORU , AKASAKA YUJI
IPC分类号： E02D5/18
摘要： PURPOSE:To build a vertical hole at an approximately same time when hardening filler is cured, by inserting a pipe applied by antifriction agent around it, into unhardened hardening filler filled in drill trench, then pulling this pipe out after hardening. CONSTITUTION:In the process that hardening filler 2 is filled in drill trench 1 and is replaced by stabilizing solution to construct an underground structure, a pipe 4 is inserted in the hardening filler 2 before it is hardened with an inserting/pulling machine 3. The pipe 4 is used by a steel pipe or the like having the sharp shape at the point, which is applied by antifriction agent around it beforehand, and is inserted vertically, as unit pipes with required lengths are connected, in turn, according to the depth of drill trench 1. After the hardening filler 2 is hardened, the pipe 4 is pulled out by the inserting/pulling machine 3 and a vertical hole 5 is constructed. Therefore, at an approximately same time when hardening filler is cured, a vertical hole can be constructed with a low cost.

2. 发明专利

JPH0978532A WORK EXECUTION METHOD FOR CONCRETE BRIDGE PIER 失效
公开(公告)号：JPH0978532A
公开(公告)日：1997-03-25
申请号：JP23883795
申请日：1995-09-18
申请人： MAEDA CONSTRUCTION , KAWASAKI STEEL CO
发明人： KAYAMA YASUHARU , SHINODA YOSHIO , TABATA MINORU , KONO KAZUNORI , SATO FUMINORI , NAGASAKI TOSHIYA , MORIKAWA TAKAYOSHI
IPC分类号： E01D19/02 , E01D21/00
摘要： PROBLEM TO BE SOLVED: To omit a mold release, shorten the construction period, and improve safety by stacking circular precast formworks on the foundation, erecting steel frames inside, and placing concrete inside while using the precast formworks as an outer formwork. SOLUTION: Circular precast formworks 1 are manufactured at a factory, they are stacked to the desired height on the foundation 2, and reinforcing bars are arranged inside the formworks 1 in parallel with the stacking work. Belt reinforcing bars 3 are fitted on the outer face of a belt reinforcing bar fixing jig 6 during the stacking work after the formworks 1 are formed into circular bodies on the ground. Steel frames 4 are erected around a precast member 7 in parallel with the stacking work of the formworks 1. The formworks 1 and the steel frames 4 are connected in required stages to the height of a desired bridge pier, then concrete 5 is placed between the precast member 7 and the formworks 1. The formworks 1 fitted with the belt reinforcing bars 3 are manufactured at the factory, and the fitting work of the belt reinforcing bars 3 at the site can be omitted.

3. 发明专利

JPS6278396A CONSTRUCTION METHOD OF PIT 失效
公开(公告)号：JPS6278396A
公开(公告)日：1987-04-10
申请号：JP21484385
申请日：1985-09-30
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , YAMAMURA TAKESHI , TAKAMORI SADAHIKO
IPC分类号： E21D1/00 , E02D5/18 , E21D5/00

4. 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

5. 发明专利

JPH0611995B2 失效
公开(公告)号：JPH0611995B2
公开(公告)日：1994-02-16
申请号：JP19487788
申请日：1988-08-04
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , NAKAMURA TOSHIO , TABATA MINORU , AKASAKA JUJI
IPC分类号： E02D5/18

6. 发明专利

JPH0243411A METHOD FOR ARRANGING STRAIN GAUGE ON UNDERGROUND STRUCTURE 失效
公开(公告)号：JPH0243411A
公开(公告)日：1990-02-14
申请号：JP19487888
申请日：1988-08-04
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , NAKAMURA TOSHIO , AKASAKA YUJI
IPC分类号： E02D5/18 , E04G21/12 , G01L1/22
摘要： PURPOSE:To arrange a strain gauge keeping enough rigidity against nailing fluidized pressure, by installing a strain gauge on a steel wire which slides flexibly to an anchor on the bottom of drill trench and fixing the steel wire tightly from the ground to nail hardening filler in the trench. CONSTITUTION:In the process that hardening filler 2 is filled in drill trench 1 and is replaced by stabilizing solution to construct an underground structure, an anchor 4 is arranged at the bottom of the drill trench 1 and at its upper end, a latching part 4 is made to project. And flexible-bend slender diameter steel wire 5 provided with required numbers of strain gauge 6 is passed through the latching part 4 and is latched with the state that its sliding is flexible, and steel wire is tightened up to fit the strain gauge 6 at the required position in the drill trench 1. Then, after the steel wire 5 is fixed up tightly with tension introduction device 8 and the hardening filler 2 is nailed in the drill trench 1 and is cured, the tension fixation of the steel wire 5 is released.

7. 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

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

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.

10. 发明专利

JPS55116928A SLIME REMOVER FOR EXCAVATED HOLE BOTTOM 失效
公开(公告)号：JPS55116928A
公开(公告)日：1980-09-08
申请号：JP2204279
申请日：1979-02-28
申请人： MAEDA CONSTRUCTION
发明人： YAMAGISHI AKIJI , YAMAMURA TAKESHI , KAYAMA YASUHARU , TABATA MINORU
IPC分类号： E02D15/06
摘要： PURPOSE:To accomplish continuous suction removal of slime settled down on the hole bottom by moving the suction port of flexible suction pipe in a horizontal symmetry maintaining a fixed space from the hole bottom. CONSTITUTION:The lower end of a slime suction pipe 10 is formed into forked flexible suction pipes 12 and 12' and suction ports 13 and 13' are provided at the tip thereof. The suction pipe 10 is brought down with an upward jack 7. At the same time, the suction ports 13 and 13 of the flexible suction pipes 12 and 12 are moved horizontally to be expanded by means of horizontal jacks 8 and 9 maintaining the space from the hole bottom with a support piece 4 whereby the slime on the hole bottom is sucked in sequence.

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