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1. 发明专利

JPH11210380A TUNNEL EXCAVATING MACHINE FOR ROCKBED 失效
公开(公告)号：JPH11210380A
公开(公告)日：1999-08-03
申请号：JP1520598
申请日：1998-01-28
申请人： OKUMURA CORP , KOMATSU MFG CO LTD
发明人： OTSUKA KATSUJI , MIZUHARA KENZO , NAKAYAMA TAKAYOSHI , KAJIWARA MISAO
IPC分类号： E21D9/10
摘要： PROBLEM TO BE SOLVED: To improve the excavating ground stable through injection of a minimum necessary amount of chemical unreasonablely by approaching the liquid injection part to the place planned as the working face using a boring machine to be mounted on a tunnel excavating machine. SOLUTION: A boring machine 10 equipped with a chemical injecting function is installed in the rear part of a main beam 3 extending backward from inside the body 2 of a tunnel excavating machine 1. The axis of a drill 12 installed on the boring machine 10 is set at an angle directed some outward from the periphery of the cutter head 6 from inside the body 2 of tunnel excavating machine 1, and a roof support 5 part in the front of the body 2 is furnished with a plurality of insert holes 7 furnished with a drill guide 7a to admit penetration of the drill 12 in a specified distribution over a range covering the upper half of the body 2.

2. 发明专利

JPH07197767A DRILLING ANGLE SETTING METHOD FOR DRILLING MACHINE AND DRILLING DEVICE 失效
公开(公告)号：JPH07197767A
公开(公告)日：1995-08-01
申请号：JP35297493
申请日：1993-12-30
申请人： OKUMURA CORP
发明人： OTSUKA KATSUJI , NAKAYAMA TAKAYOSHI , MURANAKA HIROAKI , OKAMURA JIRO , MAKITA TAKAMITSU
IPC分类号： E21D9/00 , E21B7/02 , E21B15/00 , E21B19/08 , E21C11/00
摘要： PURPOSE:To easily and accurately set an insertion angle for a drilling machine rod body having a bit mounted on the forward end thereof, so as to suit a planned tunnel excavation direction along the external surface of a tunnel facing plane. CONSTITUTION:A laser beam oscillator 3 is laid behind a tunnel 2, and a laser beam 11 is emitted from the oscillator 3 toward the external surface of a facing plane 1. After the forward end bit 8a of the rod body 8 of a drilling machine 4 is aligned with the emission point of the oscillator 3, the rear end of a drilling machine 4 is turned and moved to the laser beam 11 with the point used as a support point. Then, a target 9 erected on the rear end of the machine 4 receives the laser beam 11 and the slewing motion of the machine 4 is adjusted, so as to keep the beam receiving point of the target 9 at the preset position, thereby setting the prescribed insertion angle.

3. 发明专利

JPH09119835A SURVEYING METHOD FOR CURVED TUNNEL 失效
公开(公告)号：JPH09119835A
公开(公告)日：1997-05-06
申请号：JP27184696
申请日：1996-09-20
申请人： OKUMURA CORP
发明人： NAKAYAMA TAKAYOSHI , OTSUKA KATSUJI , OKAMOTO SHINICHI , SONOBE FUJIO , MIYOSHI HIROYOSHI
IPC分类号： E21D9/06 , G01C15/00
摘要： PROBLEM TO BE SOLVED: To obtain a surveying method in which, when a curved tunnel is excavated, a tunnel excavator is advanced precisely along the curve planned line of the curved tunnel. SOLUTION: A displacement amount and a deflection angle with reference to a curve planned line in the present position of a tunnel excavator 1 which is excavating a curved tunnel are found. When it is assumed that the tunnel excavator is advanced at the deflection angle up to a definite distance on the extension line of its machine axis, the tunnel excavator 1 is set in such a way that the curved tunnel can be excavated even when the advance state of the tunnel excavator up to the distance is at a displacement amount or lower which is permitted on the basis of the curve planned line. Then, the displacement amount with reference to the curve planned line in its position is found so as to be compared with a deflection amount in a present position, the advance direction of the tunnel excavator 1 from the present position is corrected to a direction along the curve planned line, and the curved tunnel can be excavated precisely.

4. 发明专利

JPH07197766A DRILLING DEVICE FOR EXTERNAL SURFACE OF TUNNEL FACING PLANE 失效
公开(公告)号：JPH07197766A
公开(公告)日：1995-08-01
申请号：JP35297393
申请日：1993-12-30
申请人： OKUMURA CORP
发明人： OTSUKA KATSUJI , NAKAYAMA TAKAYOSHI , MURANAKA HIROAKI , OKAMURA JIRO , MAKITA TAKAMITSU
IPC分类号： E21D9/00 , E21B19/24 , E21C9/00
摘要： PURPOSE:To reduce an insertion angle for a drilling machine rod body having a bit mounted on the forward end thereof, when a hole of constant depth is drilled around the external surface of the facing plane of a tunnel in the lengthwise direction thereof. CONSTITUTION:A drilling machine 4 is installed in such a state as freely movable back and forth on a guide seat 3 laid on a travel carriage 1 so as to be capable of freely slewing and turning vertically and right and left. The length of the drilling rod body 7 of the machine 4 is made equal to or two times the depth of a hole 11 to be drilled, thereby reducing the insertion angle of the rod body 7 and excavating a tunnel having the predetermined cross sectional form.

5. 发明专利

JPH05223570A METHOD FOR DISPLAYING EXCAVATION STATUS OF TUNNEL DRILLING MACHINE 失效
公开(公告)号：JPH05223570A
公开(公告)日：1993-08-31
申请号：JP5695392
申请日：1992-02-08
申请人： OKUMURA CORP
发明人： NAKAYAMA TAKAYOSHI , OTSUKA KATSUJI , OKAMOTO SHINICHI , SONOBE FUJIO , MIYOSHI HIROYOSHI
IPC分类号： E21D9/093 , E21D9/06 , G01C15/00
摘要： PURPOSE:To enable the direction of a tunnel drilling machine to be corrected in a direction along a tunnel drilling schedule line. CONSTITUTION:Horizontal and vertical directions of a tunnel drilling schedule line at a current position and a drilling scheduled position which is away from it by a certain distance are displayed on a CRT screen 9 with a cross line. Then, the amount of displacement in horizontal direction and that in vertical direction of the current position of a tunnel drilling machine for the schedule line are displayed on the above CRT screen 9 with a point and further the amount of predicted displacement in horizontal and vertical directions when the tunnel excavation machine is excavated by a certain distance from the current position on the machine axis are displayed with a point on the CRT screen 9. The points in horizontal direction and those in vertical direction are connected with straight lines, thus enabling the direction of excavation for the schedule line to be predicted visually.

6. 发明专利

JP2000054796A SUPPORT UNIT FOR TUNNEL 失效
公开(公告)号：JP2000054796A
公开(公告)日：2000-02-22
申请号：JP23500798
申请日：1998-08-05
申请人： OKUMURA CORP
发明人： OTSUKA KATSUJI , NAKAYAMA TAKAYOSHI , ONO JUNJI
IPC分类号： E21D11/14
摘要： PROBLEM TO BE SOLVED: To provide a support unit for a tunnel which is erected at the lower peripheral part of a ground which is apt to collapse in bedrock of an excavated wall face of a tunnel and by which a propulsive reaction for excavation of the tunnel can be securely obtained. SOLUTION: This support unit A, A' for a tunnel is constituted of forward and rearward arcuate steel members 1, 3 having a length equal with the arcuate length of the lower peripheral part of an excavated wall face of the tunnel, and a plurality of propulsive reaction-supporting steel members 2 which are interposed between the central parts and both side end parts in the peripheral direction of the tunnel in these forward and rearward arcuate steel members 1, 3 and long in the longitudinal direction of the tunnel to connect the forward and rearward arcuate steel members 1, 3. These support units A, A' and support units A, A' supporting the upper peripheral part of the excavated wall face of the tunnel are combined to form a supporting body. When a propulsive reaction can not be obtained by a rear gripper of a tunneling excavator, a thrusting jack 7 equipped in the tunneling excavator is brought into contact with the forward arcuate steel member 1 corresponding to the front end face of the propulsive reaction-supporting steel members 2 to obtain the propulsive reaction.

7. 发明专利

JPH11131402A POINT SWITCHING MECHANISM IN RAILWAY BRANCH PART 失效
公开(公告)号：JPH11131402A
公开(公告)日：1999-05-18
申请号：JP29864797
申请日：1997-10-30
申请人： OKUMURA CORP
发明人： SHIMIZU KAZUHISA , OTSUKA KATSUJI , KAMIYA HIROTAKA , MIYAO YUKIO
IPC分类号： E01B7/00 , B61L5/02 , E01B7/02 , E01B23/06 , E01B23/16 , E01B25/06
摘要： PROBLEM TO BE SOLVED: To pass locomotive for steep gradient through a railway turnout part without any trouble to efficiently perform a carrying work of earth and sand or materials. SOLUTION: Tongue rails 4a, 4b or a second movable rail, and one first movable rail 27 arranged in a branch part A are shifted by each operating means 13 (40), 30, that a locomotive for steep gradient can be traveled from a first basic railway 1 to a second basic railway 22 or turnout railway 20 through the turnout part A, or from the second basic railway 22 or turnout railway 20 to the first basic railway 1 through the turnout part A without any trouble.

8. 发明专利

JP2000034896A STRUCTURE OF TUNNEL TIMBERING BODY 失效
公开(公告)号：JP2000034896A
公开(公告)日：2000-02-02
申请号：JP21966498
申请日：1998-07-17
申请人： OKUMURA CORP
发明人： OTSUKA KATSUJI , NAKAYAMA TAKAYOSHI , ONO JUNJI
IPC分类号： E21D11/14
摘要： PROBLEM TO BE SOLVED: To provide a timbering body, which can constitute simple timbering structure corresponding to a ground section, in which the collapse, etc., of a bedrock is easy to be generated, in a tunnel excavating wall surface and by which the execution of works having excellent accuracy corresponding to the degree of curvature of the excavated wall surface is carried out even to the excavated wall surface of a curved tunnel section. SOLUTION: A plurality of timbering units A, in which collapse preventive members 3 are lined among the outer circumferential surfaces of front-rear arcuate steel materials 1, 2 curved in an arcuate shape along a tunnel excavating wall surface, are connected in the tunnel peripheral direction, and the upper half section of the timbering body S timbering the upper peripheral section of the tunnel excavating wall surface, in which the collapse of a bedrock is easy to be generated, is constituted. The lower half section of the timbering body, in which the collapse preventive members are not line, is configured by coupling a plurality of arcuate steel-material single bodies B at both lower ends of the upper half section of the timbering body. The timbering body along the excavating wall surface of a curved tunnel section is executed by gradually narrowing width in the tunnel longitudinal direction between the front-rear arcuate steel-material single bodies B, B towards lower sections.

9. 发明专利

JP2000034895A TUNNEL TIMBERING UNIT AND STRUCTURE OF TUNNEL TIMBERING BODY 失效
公开(公告)号：JP2000034895A
公开(公告)日：2000-02-02
申请号：JP21966398
申请日：1998-07-17
申请人： OKUMURA CORP
发明人： OTSUKA KATSUJI , NAKAYAMA TAKAYOSHI , ONO JUNJI
IPC分类号： E21D11/14
摘要： PROBLEM TO BE SOLVED: To provide a timbering body, which can constitute simple timbering structure corresponding to a ground section, in which the collapse, etc., of a bedrock are easy to be generated, in a tunnel excavating wall surface and by which the execution of works having excellent accuracy corresponding to the degree of curvature is carried out even to the excavating wall surface of a curved tunnel section. SOLUTION: A plurality of the timbering units A, in which collapse preventive members 3 are lined among the outer circumferential surfaces of front-rear arcuate steel materials 1, 2 curved in an arcuate shape along a tunnel excavating wall surface, are connected in the tunnel peripheral direction and the upper half section of the timbering body S timbering the upper peripheral section of the tunnel excavating wall surface, in which the collapse of a bedrock is easy to be generated, is constituted, and the lower half section of the timbering body S is configured by connecting sections among the front-rear arcuate steel materials 1, 2 by spacing members 9 and combining a plurality of the timbering units B, on which the collapse preventive member is not lined. The timbering bodies along the excavating wall surface of a curved tunnel section are executed by gradually narrowing width in the tunnel longitudinal direction among the front-rear arcuate steel materials 1, 2 organizing the lower half section of the timbering body towards lower sections.

10. 发明专利

JPH08184437A SURVEYING INSTRUMENT FOR TUNNEL EXCAVATOR 失效
公开(公告)号：JPH08184437A
公开(公告)日：1996-07-16
申请号：JP33973894
申请日：1994-12-30
申请人： OKUMURA CORP
发明人： NAKAYAMA TAKAYOSHI , WAKITA TSUNEO , OTSUKA KATSUJI , INOUE SATORU , SENO YASUHIDE , SONOBE FUJIO
IPC分类号： E21D9/06 , G01C1/02 , G01C15/00
摘要： PURPOSE: To rearrange the surveying instruments and targets for controlling a tunnel excavator along a scheduled tunnel line efficiently. CONSTITUTION: A surveying instrument 4 for measuring the coordinates of a target 2 installed on a tunnel excavator 1 while collimating is mounted, together with targets 6a, 6b installed at known positions in the rear thereof, on frames 3, 5a and 5b which can travel on a track 8. The frames 3, 5a and 5b are shifted independently, by means of the surveying instrument 4, to desired positions which can be collimated mutually. The traveling wheel 24 of the frame 3, 5a, 5b can be set removably on the track 8 and the frame 3, 5a, 5b is provided with a gripper member 26, 26a, 26b gripping the wall face of tunnel detachably through a jack.

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