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1. 发明专利

JPH0688437A DEMOLISHING CONSTRUCTION METHOD FOR LARGE BUILDING 失效
公开(公告)号：JPH0688437A
公开(公告)日：1994-03-29
申请号：JP19529691
申请日：1991-08-05
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： HASEGAWA AKIYOSHI , IDESAKI YUUJI , ISHIZAKA YUKIO , TOKUDA MUTSUYA , YAMAMOTO HIDEO , YOSHIKAWA KENJI , FURUNAGA TATSUHIRO
IPC分类号： E04G23/08
摘要： PURPOSE:To provide a building demolishing construction method which can safely execute the crushing work of a ceiling section and that near the ceiling section, and is advantageous to the demolition of the building having a high ceiling and a long depth. CONSTITUTION:Travel rails 1 are severally provided at the positions having a proper height of mutually opposite inner wall faces of a building A, and a horizontal girder 2 moving along the travel rail in the direction of depth is spanned between the travel rails 1, and a crushing device 3 is attached to the horizontal girder so as to be movable in a lateral direction for forming a demolishing device. Due to movement of the horizontal girder, the crushing device 3 is moved in the depth direction of the building, and moreover the crushing device 3 is moved along the horizontal girder 2 in the lateral direction, the crushing device 3 crushes the ceiling section A1 and the wall body A2 near the ceiling section of the building from its inside.

2. 发明专利

JPH01280195A BIT FOR BORING 失效
公开(公告)号：JPH01280195A
公开(公告)日：1989-11-10
申请号：JP10779588
申请日：1988-04-30
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： HASEGAWA AKIYOSHI , IDEZAKI YUUJI , ISHIZAKA YUKIO , KAWAGUCHI HIROSHI , FURUNAGA TATSUHIRO
IPC分类号： E21B10/40 , E21B10/30
摘要： PURPOSE:To form exactly a straight hole by a method in which a cutting edge of a larger diameter than the tip of a shank is integrally attached to the tip of the shank and a reamer of an outside diameter almost similar to the cutting edge is provided connectedly to the rear of the cutting edge. CONSTITUTION:A cutting edge 2 of a larger diameter than the tip of a shank 1 is attached to the tip of the shank 1, and a reamer 3 of a diameter almost similar to the outside diameter of the edge 2 is provided connectedly to the rear of the edge 2. The reamer 3 is formed integrally with the shank 1 or separately formed to fit it into the shank 1 in a vertically movable manner. A tapered inclined face 5 is formed on the tip periphery of the reamer 3. The drilling direction can thus be kept in the axial direction, preventing formation of uneven walls of the hole in the longitudinal direction.

3. 发明专利

JPH01190892A CRUSHING METHOD FOR ROCK AND THE LIKE 失效
公开(公告)号：JPH01190892A
公开(公告)日：1989-07-31
申请号：JP1532788
申请日：1988-01-25
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： KIYOSAKI KOJI , KINOSHITA MASATAKA , HASEGAWA AKIYOSHI , TAKAHASHI NORIMASA , FURUNAGA TATSUHIRO , TSUTAYA YOICHI , IWASAKI YUTAKA
IPC分类号： E21C37/02 , E21C37/06
摘要： PURPOSE:To enable execution of an efficient crushing work, by a method wherein a resilient member and a wedge are simultaneously worked to crush rocks, and a crack opening width, simultaneously, is kept by means of the wedge. CONSTITUTION:A plurality of holes 1 are bored in a rock R. Tubes 2 and wedge type crushing devices 3 are alternately inserted such that the tube 2 is deeply inserted in the hole 1 and the flange part of the wedge part of the wedge type crushing device 3 is brought into contact with the working face of the rock R. In linkage with crushing of the rock R by means of the tube 2, through drive of the wedge type crushing device 3 by means of a fluid cylinder 5, the rock R is crushed, and the gap between the rocks R after crushed, simultaneously, is held by the edge type crushing device 3.

4. 发明专利

JPH05306900A 失效
公开(公告)号：JPH05306900A
公开(公告)日：1993-11-19
申请号：JP13988092
申请日：1992-04-30
申请人： NIPPON STEEL CORP , OKUMURA CORP , NARD INSTITUTE LTD
发明人： IDESAKI YUUJI , HASEGAWA AKIYOSHI , SASAKI MITSUO , KARATANI HIDEO , ISHIZAKA YUKIO , FURUNAGA TATSUHIRO , INAOKA MIKIHIKO , TSUNODA TATSUNORI , YOSHIKAWA KENJI , KATANOSAKA MEIKYO , MATOBA NORIKO
IPC分类号： C21B7/00 , F27D25/00 , F42B3/00 , F42D3/00 , F42D5/04
摘要： PURPOSE:To provide a bag body for loading explosive in blasting device for rapturing remaining pig iron in a blast furnace to be repaired through blasting. CONSTITUTION:A tubular bag body 1, into which explosive is loaded, is made of textile made of fire resistant and heat resistant fibers such as ceramic fibers and the like, while heat resistant water stopping material 4, such as silicon rubber and the like, is stuck to the inner surface of the same through coating. The length and the diameter of the bag body is formed so as to be larger than the depth and diameter of a blasting hole 11 and the bag is inserted into the blasting hole 11 after loading explosive 7 into the tubular bag body 1, then, the explosive is exploded under a condition that cooling water is supplied into the bag body 1 to expand it.

5. 发明专利

JPH1068284A CUTTER BIT UNIT 失效
公开(公告)号：JPH1068284A
公开(公告)日：1998-03-10
申请号：JP24710496
申请日：1996-08-28
申请人： NIPPON STEEL CORP , OKUMURA CORP , SUTAAROI SANGYO KK
发明人： TAKANO YOSHIHIRO , HASEGAWA AKIYOSHI , TAO MITSUKI , FURUNAGA TATSUHIRO , TERAO NOBUO
IPC分类号： E21B10/62
摘要： PROBLEM TO BE SOLVED: To provide a cutter bit unit in which a cutter bit can be relatively easily removed, and which can prevent a fixed part of the cutter bit from loosing even during cutting work. SOLUTION: In this cutter bit unit 5, a cutter bit 7 is pressed against a surface to be cut of a bedrock or the like and moving, for cutting. A gap is formed between the cutter bit 7 and a frame holder 9 to which the cutter bit 7 is attached, and a space 13 made of a shape memory alloy in which a shape having an apparent thickness which increases when the temperature rises to a value which is higher than room temperature is inserted in the gap, and in this condition, the cutter bit 7 is fixed to the holder 9.

6. 发明专利

JPH04155199A DEMOLITION EQUIPMENT 失效
公开(公告)号：JPH04155199A
公开(公告)日：1992-05-28
申请号：JP28021390
申请日：1990-10-17
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： IDESAKI YUUJI , HASEGAWA AKIYOSHI , ISHIZAKA YUKIO , FURUNAGA TATSUHIRO , INAOKA MIKIHIKO , TSUNODA TATSUNORI , YOSHIKAWA KENJI
IPC分类号： F42D1/20 , C21B7/00 , F42D3/00
摘要： PURPOSE:To effect demolition work safely at all times by a method wherein a cooling water supplying tube and a discharging tube, projected from the base end of a tubular bag body, are connected to a cooling water supplying hose and a discharging hose while the tubular bag body, filled with explosive, is inserted into a blasting hole and cooling water is supplied to the supplying tube. CONSTITUTION:A cooling water supplying tube 5 is inserted into the tip end of a tubular bag body 1 while penetrating through a lid body 2 and an explosive charge 4 is arranged on the fore part of the supplying tube 5. When the cooling water supplying tube 5 is inserted into a blasting hole 16 through the lid body 2, the tube 5 is inserted easily into the blasting hole 16 while being pushed through the explosive charge 4. The tubular bag body 1 is formed of a soft flexible material and, therefore, the bag body 1 can be inserted smoothly even when recessed and projected surfaces or curvatures are generated on the internal wall of the blasting hole 16. When cooling water is sent into the supplying tube 5 in the tubular bag body 1 through a cooling water hose 7, the tubular bag body 1 is filled with the cooling water and the charge 4 as well as a primer 10 are submerged into the cooling water and adiabatic effect is generated with respect to a high temperature from the side of the blasting hole 16 while the tubular bag body 1 is inflated and the outer peripheral surface is contacted closely and wholely with the inner wall of the blasting hole 16. The temperature of the cooling water is risen and the cooling water is discharged to the outside of a system through a discharging hose 9.

7. 发明专利

JPH03291311A METHOD FOR REMOVING RESIDUAL IRON IN BLAST FURNACE 失效
公开(公告)号：JPH03291311A
公开(公告)日：1991-12-20
申请号：JP9458690
申请日：1990-04-09
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： KARATANI HIDEO , TAKASAKI HIROSHI , IDEZAKI YUUJI , SASAKI MITSUO , HASEGAWA AKIYOSHI , ISHIZAKA YUKIO , TSUNODA TATSUNORI , YOSHIKAWA KENJI , FURUNAGA TATSUHIRO
IPC分类号： C21B5/00 , C21B7/06 , F27D1/16
摘要： PURPOSE:To prevent breakage of stave cooler, etc., to facilitate charge of explosive and to improve the blasting efficiency by digging peripheral groove to refractory brick to form free surface, charging the explosive into explosive holes vertically bored to residual iron and exploding. CONSTITUTION:The groove 9 is digged on the whole periphery of refractory bricks 5 at the circumference of the residual iron 6 arranging the suitable spacing between the inner peripheral face of the stave coolers 3 with grooving hole digging machine 8, which comes in from opening part in casting floor in the blast furnace 1. Further, plural positions of the blasting holes 14 are vertically bored at every prescribed intervals over the whole surface to the horizontal face direction from upper face of the residual iron 6 with a residual iron treating device 13, which comes in as the same way as above on the exposed upper surface of residual iron 6. Further, by removing a part of iron shell 2, the cooler 3 and brick 5 surrounding the residual iron 6 at lower side wall in the blast furnace 1 from the furnace bottom to the suitable height above the residual iron 6 with the suitable mechanical breakage, the discharging opening part 17 is beforehand formed at a part of the side wall. Then, the explosive is charged into the hole 14 at nearest position to the groove 9 and exploded and the residual iron 6 surrounded with the bricks 5 is broken successively.

8. 发明专利

JPH01275710A METHOD OF DISASSEMBLING BLAST FURNACE 失效
公开(公告)号：JPH01275710A
公开(公告)日：1989-11-06
申请号：JP10583588
申请日：1988-04-27
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： HASEGAWA AKIYOSHI , IDESAKI YUUJI , ISHIZAKA YUKIO , KAMIYAMA MAKOTO , NISHI CHIHARU , FURUNAGA TATSUHIRO
IPC分类号： C21B7/00
摘要： PURPOSE:To bore a blasting hole of good accuracy to a blast furnace and to disassemble the furnace with good efficiency by breaking and removing the side wall refractories of the furnace to expose the residual pig at furnace bottom, boring the blasting hole by rotating and advancing the drill body of a boring device and loading gunpowder into the hole, then exploding the residual pig, thereby disassembling the furnace. CONSTITUTION:The side wall refractories of the blast furnace 1 are removed to expose the residual pig 2 in the bottom of the furnace 1 and a boring device 4 disposed with the drill body 8 having a cutting bit 8a at the tip on a luffing arm 18 of a moving carriage 17 in such a manner that said body can be freely rotated and moved forward and backward is used. The blasting port 3 is bored in the residual pit 2 by advancing the drill body 8 while rotating the same. The gunpowder is then loaded into the port 3 and is exploded to break and disassemble the residual pig 2. The outside circumference of the refractories in the bottom of the furnace 1 is partly removed. The boring of the above- mentioned blasting hole 3 the explosion of the residual pig 2 and removal of the bottom refractories are repeatedly carried out. The blast furnace 1 is thereby efficiently disassembled.

9. 发明专利

JPH01275009A ROTARY BORING DEVICE 失效
公开(公告)号：JPH01275009A
公开(公告)日：1989-11-02
申请号：JP10583688
申请日：1988-04-27
申请人： NIPPON STEEL CORP , OKUMURA CORP
发明人： HASEGAWA AKIYOSHI , IDESAKI YUUJI , ISHIZAKA YUKIO , KAMIYAMA MAKOTO , NISHI CHIHARU , FURUNAGA TATSUHIRO
IPC分类号： E21B3/00 , B23B45/00 , B28D1/14
摘要： PURPOSE:To make it possible to correctly and efficiently bore a uniform hole and at the same time facilitate the drawing-out of a cutting bit after boring by a method wherein the cutting bit is fed at the fixed feed rate by the actuation of a motor for feeding a slide and pressure water or the like is jetted from the bit in a bored hole and the slide is retreated by means of a return mechanism, when the hole with the predetermined depth is bored. CONSTITUTION:A hollow rod 4 is rotated at a certain rotational speed, which is suitable for cutting reinforced concrete, by the rotary driving motor 7 of a rotary boring device, which is fixed through the mounting brackets 29 ana 30 of a frame 8 onto the top surface of the elevating arm of a travelling truck. At the same time, a screw rod 9 is rotated by a feeding motor 10 so as to advance a slide 1, which engages through a clamping piece with the rod 9. Fluid is jetted, from the tip of a cutting bit 5 in a bored hole so as to discharge chips through gap between the hollow rod 4 and the bored hole out of the hole. When the hole with the desired depth is bored in a reinforced concrete, the screw rod 9 is rotated reversely by driving the feeding motor 10 so as to retreat the slide 1 along the screw rod 9.

10. 发明专利

JPS61261527A SIDE WALL STRUCTURE FOR ROUND UNDERGROUND TYPE STRUCTURE 失效
公开(公告)号：JPS61261527A
公开(公告)日：1986-11-19
申请号：JP10338085
申请日：1985-05-15
申请人： NIPPON STEEL CORP , SHIMIZU CONSTRUCTION CO LTD
发明人： HASEGAWA AKIYOSHI , KIYOSAKI KOJI , KINOSHITA MASATAKA , HONMA KOJI , NAKAZAWA SUSUMU , WAKITA EIJI , TAKEUCHI ATSUO , KAWASHIMA YOSHI
IPC分类号： E02D5/20 , E02D5/18 , E02D17/04 , E02D29/00
摘要： PURPOSE:To use a continuous wall as a part of a round underground type structure by a method in which a continuous wall inserted with a core material is constructed, the ground inside the continuous wall is excavated, and concrete for side wall is placed into ring beams set during the excavation. CONSTITUTION:Dowel reinforcing bars 7 are welded to H-steels 2 in advance, and the ground is excavated along a guide ring 4 and the soil is replaced by cement mortar. The H-steels 2 are inserted into the cement mortar to form a continuous wall 1. The ground is then excavated to a given depth while setting ring beams 3 inside, and the dowel reinforcing bars 7 are exposed in order by chipping. Circumferential reinforcing bars 9 and vertical reinforcing bars 10 are then set, and concrete 8 for side wall is placed while embracing the ring beams 3 and the dowel reinforcing bars 7. The sheathing continuous wall can thus be utilized as a part of the base structure, and the thickness of the side wall concrete can be greatly reduced.

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