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11. 发明专利

JP2000087698A TUNNEL LINING DEVICE 失效
公开(公告)号：JP2000087698A
公开(公告)日：2000-03-28
申请号：JP25700198
申请日：1998-09-10
申请人： OHBAYASHI CORP
发明人： NAKAJIMA MASATOMO
IPC分类号： E21D11/10
摘要： PROBLEM TO BE SOLVED: To provide a tunnel lining device capable of continuously effecting the concrete lining by constantly moving a form along a concrete placement surface. SOLUTION: Regarding the sectional shape of a tunnel section, a tunnel lining device is provided with a cylindrical support frame 2 formed to a specified length, a large number of guide rollers 3 which are continuously arranged in the longitudinal direction with both ends supported by bearings on an outer side part of each side of the frame 2, main guide rollers 4 arranged on a forward end and a rear end of each side of the frame 2, and a form belt 5 which is stretched between the main guide roller 4 in an endless manner, and movably guided by each guide roller 3 while its outer side part is brought into contact with a lining concrete C on the outer side of the frame 2.

12. 发明专利

JP2001198915A METHOD FOR MANUFACTURING SPRAYED CONCRETE 失效
公开(公告)号：JP2001198915A
公开(公告)日：2001-07-24
申请号：JP2000012075
申请日：2000-01-20
申请人： OHBAYASHI CORP
发明人： NAKATANI MICHIO , NAGASATO JUNICHI , NAKAJIMA MASATOMO
IPC分类号： C04B24/38 , B28C7/12 , C04B28/02 , C04B40/00
摘要： PROBLEM TO BE SOLVED: To largely decrease an amount of splashes. SOLUTION: In a manufacturing method, cemente c, fine aggregate s, coarse aggregate S and mixing water W which are components of concrete are prepared according to the proportional ratio, the mixing water W is divided into two parts of primary mixing water W1 and secondary mixing water W2, and they are primarily kneaded. The primary kneading is carried out by adding the mixing water W1 to the cement c and the fine aggregate s. When the primary kneading is ended, then secondary kneading is carried out. In the secondary kneading, the coarse aggregate S, the secondary mixing water W2 and starch based thickener X are additively casted into a mixture containing the cement c and the fine aggregate s which are kneaded in the primary kneading, and the secondary kneading is carried out.

13. 发明专利

JP2000356097A PROJECTION TYPE SPRAY GUN FOR CONCRETE AND THE LIKE 失效
公开(公告)号：JP2000356097A
公开(公告)日：2000-12-26
申请号：JP17130299
申请日：1999-06-17
申请人： OHBAYASHI CORP , MITSUI MIIKE MACHINERY CO LTD
发明人： SAITO ARISA , NAKAJIMA MASATOMO , IMAI HIDEO , KASHIWAMURA NORIOMI
IPC分类号： E21D11/10 , B05B7/04 , B05C19/00 , E04F21/08
摘要： PROBLEM TO BE SOLVED: To eliminate the need for cleaning concrete or the like mixed with an accelerating agent, at the time of interruption or completion of spraying work. SOLUTION: In this projection type spray gun, a material storage part 15 comprises a pair of rotating plates 1, 1 supported in such a way as to be capable of rotating about the same axis, and an endless belt 6 wound on both rotating plates 1, 1a, and concrete M1 or the like and an accelerating agent M2 supplied to the material storage part 15 are released at the outwardly advancing part 6a at an open position of the endless belt 6 driven for circulation. A concrete supply pipe 16 and an accelerating agent supply pipe 17 are passed through the centers of the rotating plates 1a, 1a and the concrete M1 or the like and the accelerating agent M2 are supplied into the material storage part 15 from the ends of both supply pipes 16, 17.

14. 发明专利

JP2000257393A ROTARY CONCRETE SPRAY DEVICE 失效
公开(公告)号：JP2000257393A
公开(公告)日：2000-09-19
申请号：JP6202499
申请日：1999-03-09
申请人： OHBAYASHI CORP , KOYO PRECISION MFG
发明人： YAMAMOTO YUKINOBU , NAKAJIMA MASATOMO , HAYASHI KOZO , YAMAGUCHI SHIGEO
IPC分类号： E02D17/20 , E04G21/02 , E21D11/10 , F04D29/44 , F04F1/14
摘要： PROBLEM TO BE SOLVED: To confirm the direction of the projection of concrete by providing an index displaying an opening part position on any one of a guide sleeve and the fixing part of the circumference of the guide sleeve, and providing a detecting means detecting the index on the other hand. SOLUTION: A proximity sensor for position detection S1 is embedded and set on the rear end cover 23 of a guide sleeve 20 in the rear end of a spray device 10 at a prescribed part, and a proximity sensor for rotary angle detection S2 is embedded and set. In rotating the sleeve 20, opening part position information, rotary angle information and the present position information of the sleeve 20 are transmitted from the proximity sensors S1, S2 and a present position detection sensor through a signal cable (c) to a programmable controller PC respectively. Furthermore, the controller PC processes information such as a rotary angle from the rotary direction, rotary speed and present position of the opening part of the sleeve 20 and displays them on a display part D. Thereby the direction of the projection of concrete can be easily confirmed even from the outside of the spray device.

15. 发明专利

JPH11247597A EXCAVATION METHOD OF TUNNEL BORING MACHINE 失效
公开(公告)号：JPH11247597A
公开(公告)日：1999-09-14
申请号：JP4963498
申请日：1998-03-02
申请人： OHBAYASHI CORP
发明人： HASEGAWA ISAO , NAKAJIMA MASATOMO , HIGUCHI MIKIYA
IPC分类号： E21D9/10
摘要： PROBLEM TO BE SOLVED: To avoid inconveniences in excavation resulting from differences of strength of a natural ground and effectively excavate the ground continuously. SOLUTION: When a procedure starts, a natural ground is actually excavated. In this time, the revolution number R and the excavation speed V are adjusted and the ground is excavated so that a torque and a thrust force acting on a cutter head are kept lower than a limit value. Then, measured values of respective sensors are input and the strength σ of the natural ground being actually excavated is estimated and whether the strength σ is in between strengths σ1 and σ2 preset in advance or not is judged. If the strength σ is not in between σ1 and σ2, the ground is excavated in a synchronous excavation mode in which two sets of main grippers and thrust jacks are simultaneously stretched and contracted. When the strength σ is in between σ1 and σ2, the cutting head is advanced by making use of the reaction in the main gripper of one of sets. The other set of main gripper and thrust jack are contracted to prepare the excavating operation during the advancing process, and the ground is excavated in a continuous excavation mode repeating these motions alternately.

16. 发明专利

JPH1144622A SYSTEM AND METHOD FOR MEASURING BEDROCK STRENGTH BY USING FREE CROSS SECTION EXCAVATOR 失效
公开(公告)号：JPH1144622A
公开(公告)日：1999-02-16
申请号：JP21807397
申请日：1997-07-29
申请人： OHBAYASHI CORP
发明人： TOMIOKA AKIRA , NODA MASAO , KANEDA TSUTOMU , NAKAJIMA MASATOMO
IPC分类号： E21D9/10 , G01N3/00 , G01N3/40 , G01N33/24 , G01V9/00
摘要： PROBLEM TO BE SOLVED: To safely and efficiently measure bedrock strength by measuring the power value of a motor for rotating and driving a cutter head, and calculating uniaxial compression strength corresponding to the measured power value or the processed value from reference data. SOLUTION: A cutter head 3 attached to the edge of the cutter boom 2 of a free cross section excavator 1 is opposed to a cutting face 5, and penetrated into the cutting face 5 by a preset measuring condition while a motor 6 rotating and driving an expansion-contraction jack 11 of the cutter boom 2 and the cutter head 3 is controlled by a control part 4. During penetration a voltage value and a current value of the motor 6 are measured by a voltmeter 12 and an ammeter 13 respectively. Reference data 8 expressing the relation of a previously prepared power value of uniaxial compression strength for various samples in the same condition as a measuring operation condition are read out from a memory part, and uniaxial compression strength corresponding to the power value measured for the cutting face 5 is calculated by a calculation part by means of the reference data 8.

17. 发明专利

JP2003172097A BELT TYPE SHOTCRETE MACHINE 审中-公开
公开(公告)号：JP2003172097A
公开(公告)日：2003-06-20
申请号：JP2001370537
申请日：2001-12-04
申请人： OHBAYASHI CORP , MITSUI MIIKE MACHINERY CO LTD , GSK KK , DENKI KAGAKU KOGYO KK
发明人： IKEDA MASAO , OURA MICHIYA , NAKAJIMA MASATOMO , ICHIKAWA MASAYUKI , UENO KENJI , TAKANO HIROMICHI , MATSUO YASUNOBU , GOMI HIDEAKI
IPC分类号： E02D17/20 , E04G21/02 , E21D11/10
摘要： PROBLEM TO BE SOLVED: To provide a belt type shotcrete machine capable of enhancing strength of concrete solidified by being sprayed on an object face and further making low dust. SOLUTION: The belt type shotcrete machine 10 is provided with a belt type sprayer body 10 projecting not yet solidified concrete to the object face by centrifugal force of rotation of a belt 18 and a shotcrete pipe 36 forcedly pumping the concrete to the sprayer body. An accelerator of the concrete is fed together with compressed air, an accelerator feed pipe has a smaller diameter than the shotcrete pipe 36 penetrates the outer wall of the shotcrete pipe 36 to be connected so that it is projected in only a prescribed depth to the inside of the pipe, and is connected with an angle of 40 degrees to the center axis of the shotcrete pipe 36 in the upstream side of the connection part. COPYRIGHT: (C)2003,JPO

18. 发明专利

JP2001040994A METHOD FOR SUPPORTING NATURAL GROUND ABOVE TUNNEL BORING MACHINE 失效
公开(公告)号：JP2001040994A
公开(公告)日：2001-02-13
申请号：JP21479599
申请日：1999-07-29
申请人： OHBAYASHI CORP , TOKAI RUBBER IND LTD
发明人： NAKAJIMA MASATOMO , NINOMIYA TADASHI , NAKAMA SHOJI , HARUBE OSAMU
IPC分类号： E21D9/10
摘要： PROBLEM TO BE SOLVED: To avoid binding resulting from loosening of natural ground. SOLUTION: When a bag 30 is to be installed in a gap between the outer periphery of a rear shield part 13 and the excavated face 15 of the natural ground, a cord such as a rope is locked to one end of the bag 30 and is drawn into a through hole provided in the rear shield part 13 and is pulled from within the rear shield part 13, whereby the bag 30 is installed between the outer peripheral surface of the rear shield part 13 and the excavated face 15 of the natural ground. Thereafter, a fluid supply hose is connected to the bag 30 to expand the bag 30. When the upper and lower faces of the bag 30 expanded fill the gap between the outer peripheral surface of the rear shield part 13 and the excavated face 15 of the natural ground, temporary timbering for the excavated face 15 of the natural ground is constructed. The temporary timbering thus constructed makes it possible to avoid the binding of the tunnel boring machine 10 even if the natural ground is loosened at the stop of excavation during which the tunnel boring machine 10 is highly likely to be bound.

19. 发明专利

JP2000319850A BELT FORM APPARATUS 失效
公开(公告)号：JP2000319850A
公开(公告)日：2000-11-21
申请号：JP13272999
申请日：1999-05-13
申请人： OHBAYASHI CORP
发明人： NAKAJIMA MASATOMO , NAKAMA SHOJI , FUJII TAKESHI , NINOMIYA TADASHI
IPC分类号： E02B5/02 , E04G9/10 , E04G11/22 , E04G11/26 , E04G11/34
摘要： PROBLEM TO BE SOLVED: To provide a belt form apparatus which enables continuous concrete placement, and achieves further energy saving and shortening of a construction period when a concrete structure having a predetermined cross sectional shape continuously extending in the horizontal direction. SOLUTION: A frame 20 which progresses almost in the horizontal direction supports a pair of guide rollers 26, 26a, 26b which are arranged at a predetermined interval in a progressing direction. An endless belt 24, 24a, 24b is allowed to orbit between the guide rollers 26, 26a, 26b, to thereby carry out rotative guiding. A single external side surface of the endless belt is made into a form surface 28, 28a, 28b of placed concrete C.

20. 发明专利

JP2000291358A LARGE CALIBRE BORING METHOD 失效
公开(公告)号：JP2000291358A
公开(公告)日：2000-10-17
申请号：JP10442399
申请日：1999-04-12
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： TOSAKA TOMOHEI , NAKAJIMA MASATOMO , MATSUDA YASUNORI
IPC分类号： E21B7/04
摘要： PROBLEM TO BE SOLVED: To discharge excavation slime smoothly without damaging natural ground in a large calibre hole boring. SOLUTION: When a natural ground C is reinforced by burying a steel outer tube 24, a drifter 26 is driven to transmit a thrust, rotation, and hammering to an inner tube rod 22 and a boring bit 20 through a shank rod 38 in order to dig the natural ground C and form a bored hole D. In this case, cooling medium A comprising air bubbles F accompanying compressed air E is supplied to a medium supply passage 28 through a supply port 34, and the cooling medium A is injected from the boring bit 20 to the natural ground C. The powder generated by the excavation with the boring bit 20 is mixed with the cooling medium A to form excavation slime B, and the excavation slime B is discharged to the outside from a discharge port 36 through a discharge passage 30.

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