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11. 发明专利

JP2538453B2 失效
公开(公告)号：JP2538453B2
公开(公告)日：1996-09-25
申请号：JP21012991
申请日：1991-07-26
申请人： NIPPON KOKAN KK , SHINNIPPON SEITETSU KK
发明人： NEMOTO MINORU , PPONMA HIROSHI , NAKAJIMA YOSHIKAZU , WATANABE MASAAKI , KUNIOKA MAKOTO , ONO TOSHITAKA , TAKEUCHI TAKASHI , KAKIZAKI MINORU
IPC分类号： E21D9/06 , F16L1/024

12. 发明专利

JPH0615920B2 失效
公开(公告)号：JPH0615920B2
公开(公告)日：1994-03-02
申请号：JP16843689
申请日：1989-06-30
申请人： NIPPON KOKAN KK
发明人： WATANABE MASAAKI , NAKAJIMA YOSHIKAZU
IPC分类号： F16L1/024 , F16L57/00 , F16L58/18

13. 发明专利

JPH01163306A SETTLING OF PIPELINE 失效
公开(公告)号：JPH01163306A
公开(公告)日：1989-06-27
申请号：JP32232687
申请日：1987-12-18
申请人： NIPPON KOKAN KK
发明人： KOTSUKI ZENJI , NAKAJIMA YOSHIKAZU , SUZUKI NOBUHISA
IPC分类号： E02D1/00 , E02D27/46 , F16L1/024 , G01M13/00 , G01M99/00
摘要： PURPOSE:To bring about settling displacement of pipes by simplified equipments by a method in which a pipe set in the bottom of an excavated trench is buried in a soluble solid, a frozen settled layer is formed through a freezing liquid, and a heat source is supplied through pipe set in the layer to thaw the ice. CONSTITUTION:A pipe 2 is set in the bottom of an excavated trench 1 with a pipeline 5 and buried in soluble solids to a given level in order to form a settled layer 3, where the layer 3 is watered and at the same time frozen through a refrigerant. The pipeline 5 in the upper part of the layer 3 is finished and the the soil to the ground is compacted. The frozen water of the layer 3 is thawed by supply or circulation of heat source into the pipe 2 in the layer 3, and the solids forming the layer 3 are dissolved by the thawed liquid so that the upper pipeline 5 of the layer 3 and the deposit soil are settled down by a degradation phenomenon similar to the ground subsidence. Experimental measurement on displacement of the pipeline by the ground subsidence can thus be eliminated, and the operation is economically performed without specific technique.

14. 发明专利

JPH01153931A SINKING METHOD FOR CONDUIT RUN 失效
公开(公告)号：JPH01153931A
公开(公告)日：1989-06-16
申请号：JP31301587
申请日：1987-12-10
申请人： NIPPON KOKAN KK
发明人： NAKAJIMA YOSHIKAZU , KOTSUKI ZENJI , SUZUKI NOBUHISA
IPC分类号： G01M99/00 , F16L1/024 , G01M13/00 , G01N3/00
摘要： PURPOSE:To facilitate burying construction and to reduce its cost by forming a settlement layer of a water-soluble material under the conduit run and feeding water for solution into the settlement layer. CONSTITUTION:A base bed 2 is formed of earth (sand) of good quality at the bottom of a digged groove 1, the settlement layer is formed thereupon by charging and packing the water-soluble material 3 such as salt and sugar in a bag 4, and the conduit run 5 is laid on its top surface; and earth (sand) 6 is deposited nearby the peak of the conduit run and earth 7 produced at the time of digging the groove 1 is deposited. A water injection pipe 10 is arranged in the bag 4 from on the ground and a water discharge pipe 11 is provided from in the bag 4 to on the ground. Then the solution water 9 in a water reservoir tank 8 is injected equally into the bag 4 through small holes of the pipe 10 and then the material 3 is dissolved and the solution water 9 containing the material 3 is discharged onto the ground through the pipe 11 naturally by capillarity. Consequently, while a cavity is formed below the conduit run 5, the laminate of the earth (sand) 6 and produced earth 7 sinks and then the conduit run 5 also sinks while displaced.

15. 发明专利

JP2793056B2 失效
公开(公告)号：JP2793056B2
公开(公告)日：1998-09-03
申请号：JP21012891
申请日：1991-07-26
申请人： NIPPON KOKAN KK , SHINNIPPON SEITETSU KK
发明人： NEMOTO MINORU , PPONMA HIROSHI , NAKAJIMA YOSHIKAZU , WATANABE MASAAKI , SHIMA HIROSHI , FUJISAKI YASUISA , KIMURA TETSUO , KAKIZAKI MINORU
IPC分类号： E21D9/06 , F16L1/024

16. 发明专利

JPH01153932A SINKING METHOD FOR CONDUIT RUN 失效
公开(公告)号：JPH01153932A
公开(公告)日：1989-06-16
申请号：JP31339387
申请日：1987-12-11
申请人： NIPPON KOKAN KK
发明人： KOTSUKI ZENJI , NAKAJIMA YOSHIKAZU , SUZUKI NOBUHISA
IPC分类号： G01N3/00 , F16L1/024 , G01M13/00 , G01M99/00
摘要： PURPOSE:To facilitate burying construction and to reduce its cost by freezing a settlement layer by using freezing liquid while saturating the layer with water, arranging the conduit run above it, and feeding heat into the settlement layer for unfreezing and sinking the conduit run. CONSTITUTION:A sheet 2 for prevention against water infiltration from the bottom part ground is laid at the bottom part of a digged groove 1, a pipe 4 is arranged on its top surface, and earth (sand) is charged to form a settlement layer 3. Then water is scattered in the settlement layer 3 to saturate the layer and then the freezing liquid such as liquid nitrogen is scattered to freeze the entire. A base bed 5 is formed thereupon, and the conduit run 6 is arranged thereupon; and earth (sand) 7 is charged up to the conduit peak and produced earth 8 is deposited up to a finish ground. The heat is fed from small holes through the pipe 4 by the feeding of hot water, etc., to unfreeze the frozen ice in the settlement layer 3 and the ground becomes weak; and the solution penetrates the sheet 2 which loses its durability at the time of freezing and is absorbed by the ground. Then the settlement layer 3 can not withstand the load of the soil laminated thereupon and the conduit run 6 and is compressed to cause a collapse phenomenon, so that the conduit run 6 sinks while displaced.

17. 发明专利

JPH01163305A SETTLING OF PIPELINE 失效
公开(公告)号：JPH01163305A
公开(公告)日：1989-06-27
申请号：JP32232587
申请日：1987-12-18
申请人： NIPPON KOKAN KK
发明人： KOTSUKI ZENJI , NAKAJIMA YOSHIKAZU , SUZUKI NOBUHISA
IPC分类号： E02D27/46 , E02D1/00 , F16L1/024 , G01M13/00 , G01M99/00
摘要： PURPOSE:To settle down a pipeline at a low cost as well as make burying work of pipes easier by a method in which a settled layer of soluble solids is formed of a plurality of soluble solid matters on the bottom of an excavated trench, a solving liquid is spread from pipes in the settled layer to dissolve the solids or the solids are dissolved by ground water. CONSTITUTION:A settled layer 4 consists of soluble spherical solids which are composed of an oil soluble substance or water-insoluble substance such as sand as nucleus 9a and a water-soluble substance as the covering substance 9a of the nucleus 9a. After completion of burying work, a solving liquid such as water is supplied from a storage tank through pipes 3 set in the layer 4 to the layer 4 to dissolve the substance 9b of the solids 9 forming the layer 4. Soil on the layer 4 and the pipeline 6 set on the layer 4 are made to collapse so that the pipeline 6 is settled down and at the same time settling displacement is allowed to occur.

18. 发明专利

JPH01153930A SINKING METHOD FOR CONDUIT RUN 失效
公开(公告)号：JPH01153930A
公开(公告)日：1989-06-16
申请号：JP31301487
申请日：1987-12-10
申请人： NIPPON KOKAN KK
发明人： NAKAJIMA YOSHIKAZU , KOTSUKI ZENJI , SUZUKI NOBUHISA
IPC分类号： F16L1/024 , G01M13/00 , G01M99/00 , G01N3/00
摘要： PURPOSE:To facilitate burying construction and to reduce its cost by laying a pipe for solution water which has plural small holes bored at the bottom part of a digged groove, laminating water-soluble paper to specific thickness, forming a settlement layer, and arranging the conduit run thereupon. CONSTITUTION:A base bed 2 is formed of earth (sand) of good quality on the base of the digged groove 1, the settlement layer 3 is formed of the water-soluble paper thereupon, and a sheet (made of synthetic resin) 4 for prevention against water seasoning from above is laid thereupon; and the conduit run 5 is laid on its top surface, earth (sand) 6 is deposited nearby the peak of the conduit run, and earth 7 produced at the time of digging the groove 1 is deposited. Water injection pipes 10 are arranged horizontally at the lower part in the settlement layer 3 at right angles to the conduit run 5. The the solution water 9 in a water reservoir tank 8 is injected equally into the settlement layer 3 from the small holes through the pipes 10 to dissolve the settlement layer 3 and the solution water 9 which contains the water-soluble paper penetrates the base bed and its peripheral base to form a cavity below the conduit run 5. Then the laminate of the earth (sand) 6 and produced earth 7 sinks and the conduit run 5, therefore, sinks accordingly while displaced.

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