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1. 发明专利

JPH1037646A EARTH REMOVING METHOD AND EQUIPMENT OF INNER EXCAVATION SYSTEM 失效
公开(公告)号：JPH1037646A
公开(公告)日：1998-02-10
申请号：JP19461296
申请日：1996-07-24
申请人： TOYO ASANO KK , JIYOUBU SANGYO KENZAI KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MARUNAKA CONCRETE KOGYO KK , SANWA KIZAI CO LTD
发明人： MACHINAGA KAORU , TAKIGUCHI TADAMORI , KATO HIROFUMI , YAMADA SATORU , KOIKE TAKEHIKO , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO , HAMANO MAMORU , YAMAZAKI KAZUO
IPC分类号： E02F7/00 , E02D7/28 , E21B7/00
摘要： PROBLEM TO BE SOLVED: To prevent a danger and the deterioration of work environment, and to miniaturize a base machine by a method wherein high-pressure water is injected from an excavation head, soil and sand are changed into excavated muddy water and lifted in a pit, soil and sand are separated and discharged and water is circulated and used. SOLUTION: An earth auger 2 is inserted into a pit 1, and an excavation bit 3 is installed to a head section and excavation is conducted. A guide post 11 is supported by a base machine 10, and the pit 1 is made perpendicular. High-pressure water is forwarded to the earth auger 2 by a high-pressure pump 20, and high-pressure water 22 is injected against a wall surface 23 in the ground from an excavation head through the inner tube of an earth auger shaft. Soil and sand on the wall surface 23 are excavated by infection, and slurry 24 is sucked by a slurry discharge pump 25. Slurry 24 is sent to a solid-liquid separator 30 through sections among the blades of the earth auger 2. Since mud is not discharged to the outside by separating slurry into water and removing earth 35 by the solid-liquid separator 30 and circulating and using a supernatant liquid 38, environment can be protected. The base machine 10 need not be scaled up.

2. 发明专利

JPH1037191A METHOD OF PILE INSTALLATION BY INNER EXCAVATION AND DEVICE FOR USE IN IT 失效
公开(公告)号：JPH1037191A
公开(公告)日：1998-02-10
申请号：JP19461196
申请日：1996-07-24
申请人： TOYO ASANO KK , JIYOUBU SANGYO KENZAI KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MARUNAKA CONCRETE KOGYO KK , SANWA KIZAI CO LTD
发明人： MACHINAGA KAORU , TAKIGUCHI TADAMORI , KATO HIROFUMI , YAMADA SATORU , KOIKE TAKEHIKO , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO , YAMADA SHIGERU , YAMAZAKI KAZUO
IPC分类号： E02D7/00 , E02D7/28
摘要： PROBLEM TO BE SOLVED: To establish a method for constructing a concrete pile having a small bore and an outside diameter of 450mm or less. SOLUTION: An earth auger drive device 12 and a pile 19 are coupled together on the ground in the horizontal attitude, and the drive device 12 is pin coupled with a suspension sheave 14 elevating and sinking along a guide post 17 of a base machine. The sheave 14 is lifted so that the drive device 12 is hung up together with the pile 19 to generate a plumb attitude alongside the guide post 17, and the pile installation by inner excavation is executed with one small-sized unit of base machine 10.

3. 发明专利

JPH1037190A SCREW FOR PILE INSTALLATION BY INNER EXCAVATION 失效
公开(公告)号：JPH1037190A
公开(公告)日：1998-02-10
申请号：JP19461396
申请日：1996-07-24
申请人： TOYO ASANO KK , JIYOUBU SANGYO KENZAI KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MARUNAKA CONCRETE KOGYO KK , SANWA KIZAI CO LTD
发明人： MACHINAGA KAORU , TAKIGUCHI TADAMORI , KATO HIROFUMI , YAMADA SATORU , KOIKE TAKEHIKO , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO , HAMANO MAMORU , YAMAZAKI KAZUO
IPC分类号： E02D7/00
摘要： PROBLEM TO BE SOLVED: To enable inner excavation of a pile having a small diameter by providing a plural winding screw blade, a central shaft like a double pipe, and a cemented tip edge tip and specifying their dimensions. SOLUTION: A screw 1 is provided with a plurality of blades 2, and a ratio of screw pitch P to outside diameter D of the screw is 2 to 8. The blade 2 cooperates with a shaft 3 to transmit effective twisting moment, and the pile installation by inner excavation of a pile having a small diameter becomes possible because it transmits a large torque even if its diameter is small. A fish tail 10 with cemented tip is attached to a head part 7 to enable digging of hard rocks. The length of the head part 7 is 1.5 meters or more so that a joint exists in the pile even if a bit receives a large bending force when a bulb is produced in a lower part of the pile and local stress does not act in the joint part. The central shaft 3 is a double pipe and is used in the digging due to low pressure air for discharging digged soil and high pressure fluid, stirring, pouring of cement milk, etc. Moreover, if an outside diameter of the pile having a small diameter is 450mm, its outside diameter D is 250mm or less.

4. 发明专利

JP2000096567A HEAT FOR ENLARGED FOOT-PROTECTION IN INNER EXCAVATION 失效
公开(公告)号：JP2000096567A
公开(公告)日：2000-04-04
申请号：JP26311498
申请日：1998-09-17
申请人： TOYO ASANO FOUND CO LTD , JIYOUBU SANGYO KENZAI KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MARUNAKA CONCRETE KOGYO KK , SANWA KIZAI CO LTD
发明人： KATSURAGI MASAO , TAKIGUCHI TADAMORI , YAMAZAKI MORIHIKO , YAMADA SATORU , TSUDA KAZUYOSHI , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO , EGASHIRA HIROYUKI , YAMAZAKI KAZUO
IPC分类号： E02D7/28
摘要： PROBLEM TO BE SOLVED: To increase a supporting force by providing a ring-shaped nozzle ejecting a gas in the same direction surrounding a liquid-jetting stream, at the periphery of a high pressure liquid jetting nozzle of the head. SOLUTION: A ring-shaped gas ejecting nozzle 8 is formed at the periphery of a high pressure liquid jetting nozzle 5 of a head 1 to communicate with a compressed air passage 11. A gas ejecting hole 4 is closed. In the settling process of the pile, compressed air which has been conventionally forced to eject through the ejecting hole 4 is forced to eject through the nozzle 8, and compressed air is ejected from the periphery of the nozzle 5 to form an air entraining layer at the periphery of the liquid jetting stream. The frictional energy loss around the liquid jetting stream is reduced and the collision force of the jetting stream increases and the diameter of a pedestal to be formed becomes large. Instead of this, a high pressure liquid jetting nozzle constituted of a plurality of openings positioned close to each other is disposed at the same level in the axial direction of the head or at a position having a level difference in the axial direction of the head, and the ring-shaped gas ejection nozzle is provided at the periphery. In this way, a long term supporting force of the pedestal foot-protection pile can be increased.

5. 发明专利

JP2000080647A FORMING METHOD FOR EXPANDED BULB 失效
公开(公告)号：JP2000080647A
公开(公告)日：2000-03-21
申请号：JP24957798
申请日：1998-09-03
申请人： TOYO ASANO FOUND CO LTD , JIYOUBU SANGYO KENZAI KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MARUNAKA CONCRETE KOGYO KK
发明人： KATSURAGI MASAO , TAKIGUCHI TADAMORI , YAMAZAKI MORIHIKO , YAMADA SATORU , TSUDA KAZUYOSHI , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO
IPC分类号： E02D5/44
摘要： PROBLEM TO BE SOLVED: To improve the characteristic of a bulb and increase the bearing power of an inner excavation expanded bulb foot protection pile by adding an expanding agent to an injection cement paste stirred and solidified in a bulb formation region, and expanding and press-contacting bulb to the ground in a bulb hardening process. SOLUTION: Calcium sulfoalminate of 4.5-11% is used for an expanding agent, and the water/cement ratio of a cement paste to the total of cement and the expanding agent is set to 65% or below. When the expanding agent is mixed with cement and water, Ettringite or calcium hydroxide is formed by hydration, and it is coagulated as an expansion source. The paste, mortar or concrete is expanded after coagulation. Proper quantities of limestone, bauxite and plaster are mixed, baked and pulverized to obtain the CSA expanding agent. A bulb is made to press contact with the ground in the expended state, and a bulb foot protection pile having a high bearing capacity factor can be generated.

6. 发明专利

JP2003090042A METHOD AND DEVICE FOR AUTOMATICALLY RECOGNIZING DIFFERENT KINDS OF FLUIDS 审中-公开
公开(公告)号：JP2003090042A
公开(公告)日：2003-03-28
申请号：JP2001283023
申请日：2001-09-18
申请人： SANWA KIZAI CO LTD , TOYO ASANO FOUND CO LTD , UNION PILE KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME CORP , MAEDA SEIKAN KK , MAX CONCRETE KK , YAMAZAKI PILE KK , MANAKKU KK
发明人： KIMURA AKIRA , KATSURAGI MASAO , TAKIGUCHI TADAMORI , YAMAZAKI MORIHIKO , YAMADA SATORU , TSUDA KAZUYOSHI , TADA MASAAKI , YAMASHITA ATSUHIRO , ABE TATSUYA , KOMORI AKIHIKO
IPC分类号： E02D7/22 , G01L7/00 , G01L7/08 , G01L7/16
摘要： PROBLEM TO BE SOLVED: To obtain an underground created object having a prescribed diameter and a prescribed strength. SOLUTION: Characteristically, a pressure detecting means 6 is provided to detect a pressure in a fluid feeding line, through which different kinds of fluids are fed to an objective place from a source of supply, in a midway part of the fluid feeding line; and a signal of detection, by a pressure detecting means 6, of a difference between the pressures in the fluid feeding line is obtained so that the fluids can be discriminated.

7. 发明专利

JPH01295913A CONSTRUCTING METHOD FOR ENLARGED BULB OF LARGE CALIBER PILE, AND ITS APPARATUS 失效
公开(公告)号：JPH01295913A
公开(公告)日：1989-11-29
申请号：JP12487288
申请日：1988-05-24
申请人： TOSEN ASANO PAUL KK , JIYOUBU SANGYO KK , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , NIPPON HUME PIPE , MAEDA SEIKAN KK , MAX CONCRETE KOGYO KK
发明人： MACHINAGA KAORU , YAMADA SATORU , MAEHARA KAZUMASA , TADA MASAAKI
IPC分类号： E02D5/44 , E02D5/50 , E02D7/00
摘要： PURPOSE:To construct an enlarged bulb easily and certainly, by forming an enlarged dug-down section with water jet excavation after a bearing layer of a pile lower-end is excavated with a spiral auger, and by jetting cement milk. CONSTITUTION:A cylindrical pile 6 is set sunken by an internal digging method, and a spiral auger 1 for setting a reaming cutting-edge near the outer periphery of the auger is used, and to a desired depth from the lower end of the pile 6, a bearing layer is dug down almost in the same diameter as the outer diameter of the pile 6. Then, on the wall surface 5 of the dug-down section, the high pressure water 8 of the water pressure of 100kg/cm or higher is jetted through a nozzle 7 to form an enlarged re-dug-down section 9. Besides, with the jet pressure of 180kg/cm or higher, cement milk is jetted through the nozzle 7, and the spiral auger 1 is pulled upward and at the same time, an enlarged bulb is formed at the enlarged re-dug-down section 9.

8. 发明专利

JP2000096561A FRICTION CUTTER FOR PILE INSTALLATION BY INNER EXCAVATION 失效
公开(公告)号：JP2000096561A
公开(公告)日：2000-04-04
申请号：JP26848798
申请日：1998-09-22
申请人： NIPPON KOATSU CONCRETE KK , SHINTOKU IND , DAIDO CONCRETE , MAEDA SEIKAN KK
发明人： YAMADA SATORU , TADA MASAAKI , YAMAZAKI MORIHIKO , MATSUMOTO TAKASHI
IPC分类号： E02D5/72
摘要： PROBLEM TO BE SOLVED: To improve the function of pile installation by providing a gap having a specified dimension between the inner diameter of the cylindrical body of a friction cutter euipped at the lower end of the pile and the outer diameter of the pile. SOLUTION: A concrete pile 50 is made hollow and provided with an end plate 51 at the lower end face, and a plurality of spacer pieces 30 are fixed to the inner peripheral face 13 of a ring 11 at every nearly equal distance on the whole periphery, in the cutter 10 to form a gap 14 of 10-20 mm in between the inner peripheral face 13 and the outer peripheral face 52 of the pile 50. Then, a plurality of brackets 20 fixed to the inner peripheral face 13 of the ring 11 are fixed to the end plate 51 with bolts. The outer diameter of the ring 11 is made larger than the diameter of a pipe joint. In this way, since a gap is provided when the pile is driven to settle down, compressed air flows between the outer peripheral face of the pile and the natural ground to greatly reduce the settling resistance. Moreover, when forming an enlarged bulb, cement milk is charged between the outer peripheral face of the pile and the natural ground to increase the supporting force of the pile and thickness, outer diameter, and height of the cylindrical body of the friction cutter can be formed rationally and economically.

9. 发明专利

JPH07189245A CONNECTING METHOD OF PILE 失效
公开(公告)号：JPH07189245A
公开(公告)日：1995-07-28
申请号：JP33370393
申请日：1993-12-27
申请人： SHINTOKU IND , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , MAEDA SEIKAN KK
发明人： SUKAMI HIROMICHI , MATSUMOTO TAKASHI , KATO HIROFUMI , MIYASAKA TAKAAKI , YAMADA SATORU , TADA MASAAKI , KASAHARA HIROSHI
IPC分类号： E02D5/24 , E02D5/58
摘要： PURPOSE:To fit inner rings split in the plural onto the end plates of upper and lower piles, to connect the joint structure of the piles, in which the outside diameters of the inner rings are clamped taperingly by outer rings, simply and to enable stable binding. CONSTITUTION:Only the truncated cone-shaped seats 5a, 5b of the outside diaeters of the end plates 2a, 2b of piles are finished, only the abutting surfaces 10 of the recessed section of the internal surface of an inner ring 9 are brought into contact with the seats 5a, 5b, and others are brought to a non-contact state. Width in the pile axial direction of the inner ring 9 is made wider than an outer ring 12, and the inner ring and the outer ring are assembled by constant axial thrust shown by the arrow 15.

10. 发明专利

JPH07189244A JOINT STRUCTURE OF PILE 失效
公开(公告)号：JPH07189244A
公开(公告)日：1995-07-28
申请号：JP33370293
申请日：1993-12-27
申请人： SHINTOKU IND , DAIDO CONCRETE , NIPPON KOATSU CONCRETE KK , MAEDA SEIKAN KK
发明人： SUKAMI HIROMICHI , MATSUMOTO TAKASHI , KATO HIROFUMI , MIYASAKA TAKAAKI , YAMADA SATORU , TADA MASAAKI , KASAHARA HIROSHI
IPC分类号： E02D5/24
摘要： PURPOSE:To extend the applicability of the joint structure of a pile having a large diameter by forming a plurality of conical tapers to the external surfaces of inner rings and externally fitting outer rings on each conical taper. CONSTITUTION:Conical pedestals 5a, 5b are mounted on the outer circumferential sections of the end plates 2a, 2b of piles 1a, 1b so as to be mutually faced oppositely by a PC steel bar 3, and the finished abutting sections 10 of two-part inner rings 9 are abutted against the conical pedestals 5a, 5b. The abutting sections 10 clamp the conical pedestals 5a, 5b by clamping the inner rings 9 divided into the plural, and the end plates 2a, 2b are pulled near firmly and unified. The external surfaces of the inner rings 9 have the same both tapers 11a, 11b in the reverse direction to the longitudinal direction of the piles 1a, 1b, and the inside diametral tapers 13a, 13b of the same-shaped outer rings 12a, 12b are externally fitted to the tapers 11a, 11b respectively. Reaction need not be taken besides the mutual pulling of the outer rings 12a, 12b by mutually dring the outer rings 12a, 12b at the time of assembly, biassed clamping, etc., are prevented, and the outer rings 12a, 12b are clamped by uniform clamping force.

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