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1. 发明专利

JP2001182473A DRILLING DEVICE 失效
公开(公告)号：JP2001182473A
公开(公告)日：2001-07-06
申请号：JP37224099
申请日：1999-12-28
申请人： KAMEYAMA BIT KK , OHBAYASHI CORP
发明人： MATSUDA YASUNORI , MATSUMOTO TOYOMI , NINOMIYA TADASHI , NAKAMA SHOJI
IPC分类号： E21B21/14 , E21B21/00
摘要： PROBLEM TO BE SOLVED: To provide a drilling device capable of smoothly delivering sufficient drilling water and air to a drilling pit and capable of efficiently carrying out drilling work by smoothly and sufficiently delivering foaming solution even when the foaming solution is used as the drilling water. SOLUTION: A swivel part 6 to deliver a foaming solution and air to a supply passage 3a without passing it through a head end of a drifter 7 from an outer periphery of an adapter 5 is provided on the adapter 5.

2. 发明专利

JPH11173060A INSERTION METHOD OF DEAERATION HOSE 失效
公开(公告)号：JPH11173060A
公开(公告)日：1999-06-29
申请号：JP34309397
申请日：1997-12-12
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： SUYAMA KYOZO , NODA MASATOSHI , ADACHI MASATAKA , MATSUDA YASUNORI
IPC分类号： E21B4/06 , E21B3/00 , E21B6/02 , E21B21/00 , E21D9/04 , E21C1/12
摘要： PROBLEM TO BE SOLVED: To improve a deaerating function by closing the tip of a pipe driven into the ground before a hardener is injected into the pipe and inserting a deaeration hose having an opening at the side into the pipe. SOLUTION: An outer pipe having a specified length, in which an inner rod equipped with a drilling bit at the tip is contained in the inside is driven into the ground. Thereafter, the drilling bit and the inner pipe are drawn out of the outer pipe. Then, the tip of a deaeration hose 24 is closed with a plug body 26 and a part of the hose 24 is cut out to form an opening 28 having a shape tilted to the insertion end side, at the side part. The hose 24 is inserted into the outer pipe before an injection jig is screwed to the end protruded from the ground of the outer pipe. And further, the insertion jig is screwed to the outer pipe and an injection hardener such as cement milk is injected from an injection opening to cure the injection hardener and reinforce the ground. In this way, the residual slime in the outer pipe at the excavating process is prevented from penetrating in the hose. And hence, the hose can be easily inserted to the tip side of the outer pipe and decrease of deaeration function can be prevented.

3. 发明专利

JP2001137677A DEVICE FOR CONTINUOUSLY SUPPLYING FOAMED LIQUID 失效
公开(公告)号：JP2001137677A
公开(公告)日：2001-05-22
申请号：JP32682099
申请日：1999-11-17
申请人： KAMEYAMA BIT KK , OHBAYASHI CORP
发明人： MATSUDA YASUNORI , KAMEYAMA MOTONORI , NINOMIYA TADASHI , NAKAMA SHOJI
IPC分类号： B05B7/04 , B01F3/08 , B01F5/02
摘要： PROBLEM TO BE SOLVED: To provide a foamed liquid continuously supplying device little in trouble and having a structure to withstand vibrations and impacts for accurately setting a set ratio of the concentration of the foamed liquid without using a complicated measuring device. SOLUTION: Electric three-way valves 24, 25 are respectively connected between a supply side of a liquid chemical pump 2, which sends liquid chemicals in a liquid chemical tank 21 to foamed liquid tanks 3A, 3B, and the tanks 3A, 3B and between a supply side of a water supply pipe and the tanks 3A, 3B. The tanks 3A, 3B are used for mixing the liquid chemicals with water by using venturi tubes 5A, 5B and are provided with liquid level controller 9A, 9B, respectively. Other electric three-way valves 26, 27 are respectively installed on the suction and delivery pipelines of a forcibly circulating/ discharging device 30 for circulating/mixing the foamed liquid in the tank 3A or 3B and discharging the foamed liquid to the outside halfway. The tanks 3A, 3B are alternately used as a tank for preparing the foamed liquid by supplying the liquid chemicals and water or a tank for discharging the prepared foamed liquid while observing the liquid levels by changing over these electric three-way valves.

4. 发明专利

JPH11173059A DRILLING METHOD AND COUPLING THEREFOR 失效
公开(公告)号：JPH11173059A
公开(公告)日：1999-06-29
申请号：JP34308297
申请日：1997-12-12
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： SUYAMA KYOZO , NODA MASATOSHI , ADACHI MASATAKA , MATSUDA YASUNORI
IPC分类号： E21B4/06 , E21B3/00 , E21B6/02 , E21B17/02 , E21D9/04 , E21C1/12
摘要： PROBLEM TO BE SOLVED: To make it easy to pull out and recover a drilling bit and a inner pipe rod when removing slime deposited in an outer pipe in the double pipe drilling method. SOLUTION: In a drilling method, an inner pipe rod equipped with drilling bits and an outer pipe are utilized. In the inner pipe rod, a medium supplying massage is formed for supplying cooling medium to the bit. The outer pipe is provided with a discharge passage for excavated slime. By the drifter, a thrust, rotating force and impact force is transmitted to the drilling bit and a bore hole is formed. The outer pipe is inserted to the bore hole by forward pulling method. A coupling 28 is equipped with a cylindrical coupling main body 28a with an opening at each end side as well as a wing portion 28b. Each wing portion 28b is extended radially at equal angle intervals from the outer peripheral surface and a claw piece 28c is provided on the outer periphery. The inner surface o the claw piece 28c at the rear end portion has a sloped overhang surface 28d sloped from the outer periphery to the tip end side.

5. 发明专利

JPH11173057A DRILLING METHOD 失效
公开(公告)号：JPH11173057A
公开(公告)日：1999-06-29
申请号：JP34306097
申请日：1997-12-12
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： NINOMIYA TADASHI , SUYAMA KYOZO , TOSAKA TOMOHEI , WATANABE HIROYUKI , MATSUDA YASUNORI
IPC分类号： E21B4/06 , E21B3/00 , E21B6/02 , E21B17/00 , E21D9/04 , E21C1/12
摘要： PROBLEM TO BE SOLVED: To provide a drilling method capable of easily securing the linearity of a pipe body to be inserted to natural ground and smoothly discharging slime. SOLUTION: In this drilling method, an inner rod 22 coupled to a drilling bit 20 and an outer pipe 24 for housing the inner pipe rod 22 inside the pipe are used. The inner pipe rod 22 has a medium supply passage 32 for supplying a cooling medium A to a drilling bit 20 is made and formed as a continuous through-hole, and the outer pipe 24 has a discharge passage 34 for the excavated slime B. By driving a drifter 42, a thrust, rotation and impact are transmitted to the drilling bit 20 and the drilling can be started. At this time, a cooling medium A is supplied to the drilling bit 20, and slime B is ejected to the outside through a discharge passage 34. Thrust and impact of the drifter 42 are transmitted to the tip side of the outer pipe 24 through a power transmitting portion 46, and it is inserted by a forward pulling method, by which a driving jig for closing the slime discharge passage 34 at the rear end side of the outer pipe 24 can be omitted, and the rear end side of the outer pipe 24 can be used as a released discharge hole for excavated slime B.

6. 发明专利

JP2001182474A DRILLING DEVICE 失效
公开(公告)号：JP2001182474A
公开(公告)日：2001-07-06
申请号：JP37241199
申请日：1999-12-28
申请人： KAMEYAMA BIT KK , OHBAYASHI CORP
发明人： MATSUDA YASUNORI , SAKAGUCHI HOZUMI , NINOMIYA TADASHI , NAKAMA SHOJI
IPC分类号： E21B21/14 , E21B21/00
摘要： PROBLEM TO BE SOLVED: To provide a drilling device to make a favorable working environment by discharging drilling slime and bubbles from one point and to facilitate recovery of the drilling slime and the bubbles. SOLUTION: A rear end blocking part 11 is provided on a rear end of an external pipe 2, and a drain pipe 12 is provided on the rear end blocking part 11.

7. 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.

8. 发明专利

JPH11173061A DEWATERING METHOD 失效
公开(公告)号：JPH11173061A
公开(公告)日：1999-06-29
申请号：JP34309697
申请日：1997-12-12
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： SUYAMA KYOZO , NINOMIYA TADASHI , WATANABE HIROYUKI , ADACHI MASATAKA , MATSUDA YASUNORI
IPC分类号： E21B4/06 , E21B3/00 , E21B6/02 , E21D9/04 , E21C1/12
摘要： PROBLEM TO BE SOLVED: To provide a dewatering method capable of greatly enhancing the working efficiency. SOLUTION: When installing an apertured outer pipe 24 in ground, the thrust, rotation and impact from a drifter 42 are transmitted to a drilling bit 20 through an inner pipe rod 22, by which the ground is excavated and drilling is carried out. The thrust and impact from the drifter 42 are transmitted to the tip side through a power transmitting portion 46 provided at the tip side of the apertured outer pipe 24, by which the apertured outer pipe 24 is inserted by forward pull method into a bore hole formed by the drilling by a drill bit 20. Upon completion of the installation of the apertured outer pipe 24 of a predetermined length, a part of drill bit 20 and the inner pipe rod 22 are pulled out from the apertured outer pipe 24 and recovered thereby completing the construction work.

9. 发明专利

JPH11173058A DRILLING METHOD 失效
公开(公告)号：JPH11173058A
公开(公告)日：1999-06-29
申请号：JP34306797
申请日：1997-12-12
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： SUYAMA KYOZO , NINOMIYA TADASHI , WATANABE HIROYUKI , MATSUDA YASUNORI
IPC分类号： E21B4/06 , E21B3/00 , E21B6/02 , E21B17/00 , E21D9/04 , E21C1/12
摘要： PROBLEM TO BE SOLVED: To provide a drilling method capable of smoothly discharging slime. SOLUTION: In this drilling method, an inner rod 22 coupled to a drilling bit 20 and an outer pipe 24 for housing the inner pipe rod 22 inside the pipe are used. The inner pipe rod 22 has a medium supply passage 32 for supplying a cooling medium A to a drilling bit 20 is made and formed as a continuous through-hole, and the outer pipe 24 has a discharge passage 34 for the excavated slime B. By driving a drifter 42, a thrust, rotating force and impact are transmitted to the drilling bit 20 and the drilling can be started. At this time, a cooling medium A is supplied to the drilling bit 20, and slime B is ejected to the outside through a discharge passage 34. Thrust and impact force of the drifter 42 are transmitted to the tip side of the outer pipe 24 through a power transmitting portion 46, and it is inserted by a forward pulling method, by which a driving jig for closing the slime discharge passage 34 at the rear end side of the outer pipe 24 can be omitted, and the rear end side of the outer pipe 24 can be used as a released discharge hole for excavated slime B.

10. 发明专利

JP2000297592A REMOVING METHOD FOR NATURAL GROUND REINFORCING STEEL PIPE 失效
公开(公告)号：JP2000297592A
公开(公告)日：2000-10-24
申请号：JP10690499
申请日：1999-04-14
申请人： OHBAYASHI CORP , KAMEYAMA BIT KK
发明人： NINOMIYA TADASHI , FUJII TAKESHI , MATSUDA YASUNORI , WATANABE HIROYUKI
IPC分类号： E21D20/00 , E21D9/04
摘要： PROBLEM TO BE SOLVED: To provide a method for comparatively easily removing a steel pipe without using any specially structured pipe body. SOLUTION: An H-shaped member is used for an arch type timbering arranged along a tunnel inside face, and the timbering 501 is installed just in front of a present face 521. A steel outer pipe 24 is placed in the natural ground D at a predetermined tiling angle upward from the lower side of the timbering 501. In the outer pipe 24, a third terminal pipe 24e is arranged so that the rear end side is slightly protruded from the face 521. In the first-third terminal pipes 24c-24e, thin parts 24i are arranged in the vicinities of connection parts. Before excavating forward from the present face 521, vibration or shock is applied to the end part of the third terminal pipe 24e protruded from the face 521 by means of a breaker or the like, so that the third terminal pipe 24e is broken from the thin part 24i so as to be removed.

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