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21. 发明专利

JP2004024951A System for sending air into soil 审中-公开
公开(公告)号：JP2004024951A
公开(公告)日：2004-01-29
申请号：JP2002181880
申请日：2002-06-21
申请人： Kitz Corp , Ohbayashi Corp , 株式会社キッツ , 株式会社大林組
发明人： ISHIDA MICHIHIKO , KUROIWA MASAO , MITSUMOTO JUN , HOSOKAWA YOSHIO
IPC分类号： B09B1/00 , B09C1/10
摘要： PROBLEM TO BE SOLVED: To provide a system for evenly sending air into a waste landfill site, polluted soil, and the like.
SOLUTION: The system for sending air into soil comprises rubber spread on ground face, a thick water shielding sheet 3a of a water shielding material such as asphalt, and a protection sand layer 3b. Inside the protection sand layer 3b, a main air sending pipe 14 and a plurality of air discharge pipes 15 branched at right angles to the main air sending pipe 14 are laid parallel and horizontally. Further, as shown in Fig. 1, a main air sending pipe 14 and a plurality of air discharge pipes 15 are also laid horizontally in the same manner as inside the covering soil layer 12 formed on wastes 11. The respective main air sending pipes 14 are pipes without holes and their end parts are connected to air sending equipment such as an air compressor 16 installed in a control facility 7. The air discharge pipes 15 are perforated pipes with a large number of perforations along its longitudinal direction, and provided in each of the holes with a pressure correcting mechanism for keeping an air flow rate constant.
COPYRIGHT: (C)2004,JPO

22. 发明专利

JP2001207465A CONSTRUCTION AS MEASURE AGAINST NEGATIVE FRICTIONAL FORCE IN STRUCTURE 失效
公开(公告)号：JP2001207465A
公开(公告)日：2001-08-03
申请号：JP2000020167
申请日：2000-01-28
申请人： OHBAYASHI CORP
发明人： ISHIDA MICHIHIKO , SHIBATA KENJI
IPC分类号： E02D27/34 , E02D31/10
摘要： PROBLEM TO BE SOLVED: To economically reduce a negative frictional force. SOLUTION: A reinforced concrete structure 10 is built on a soft ground 10, thereafter backfilling is carried out on the outer periphery at the lower side of the structure 10, and a backfilling sediment 14 is filled at the outer peripheral side of the structure 10. At a portion, where the structure 10 comes into contact with the backfilling sediment 14, a slippage sheet 16 is interposed. The slip sheet 16 comprises two sheets of first and second polyethylene synthetic resin sheets and has a frictional coefficient between the slip sheet and backfilling sediment 14 smaller than that between the structure 10 and the sediment 14 backfilling, and these two sheets of synthetic resin are superimposed together, so as to bring both the surface into contact with each other.

23. 发明专利

JP2000144687A APPARATUS AND METHOD FOR ESTABLISHING RECLAIMED GROUND 失效
公开(公告)号：JP2000144687A
公开(公告)日：2000-05-26
申请号：JP31480398
申请日：1998-11-05
申请人： OHBAYASHI CORP
发明人： YAMAMOTO YUKINOBU , ISHIDA MICHIHIKO , MITSUMOTO JUN
IPC分类号： E02B3/18 , E02D15/08
摘要： PROBLEM TO BE SOLVED: To early terminate sinking of a reclaimed ground by freely dropping an annular rolling compaction body adapted to freely elevate along a tremie pipe for throwing in reclaiming material to perform compaction for the reclaimed material thrown to the bottom of water under water. SOLUTION: A tremie pipe 3 for throwing reclaiming material 11 is installed in a platform boat 2, an annular rolling compaction body 4 is suspended through a wire 7 by a winch 5 on the platform boat 2, and the tremie pipe 3 is loosely fitted in a central opening of the rolling compaction body 4 to freely elevate the rolling compacting body 4 taking the tremie pipe 3 as a guide. Reclaiming material such as water bottom sediment, mountain earth or the like is thrown into the bottom of water through the tremie pipe 3 and then the rolling compaction body 4 is raised to a designated height and freely dropped. The operation is repeated designated number of times, whereby the thrown reclaiming material 11 is subjected to compaction by the dead load of the rolling compaction body 4 and the drop impact force thereof. Thus, the compaction for the reclaiming material 11 thrown into the bottom of water is performed under water, the progress of compaction for the reclaiming material 11 is promoted from its initial stage so as to early terminate sinking of the reclaimed ground.

24. 发明专利

JP2000140786A WASTE DISPOSAL PLANT 失效
公开(公告)号：JP2000140786A
公开(公告)日：2000-05-23
申请号：JP31602498
申请日：1998-11-06
申请人： OHBAYASHI CORP
发明人： ISHIDA MICHIHIKO
IPC分类号： B09B1/00 , C02F1/00 , C02F3/00
摘要： PROBLEM TO BE SOLVED: To accelerate the purification of water exuding from waste subjected to landfilling. SOLUTION: In a waste disposal plant 1, a cut-off construction 2 is executed to the entire inside area of a recessed ground E created by excavation while utilizing natural topography, and a sand mat bed 3 used in the protection and drainage of the cut-off construction 2 is formed on the bottom surface of the ground E and an exuded water collecting and distributing pipe 5 is arranged to the inner bottom surface of the central part of the sand mat bed 3. Waste is changed in the disposal plant 1 to be piled up to a predetermined thickness and, thereafter, intermediate soil covering is executed. This process is successively repeated to successively fill the disposal plant. The intermediate soil covering bed 12 comprises a cut-off bed having purifying function and drain function and a vertical water collecting and draining pipe piercing through a waste 6 and the soil covering bed 12 and connected to the water collecting and distributing pipe 5 is vertically provided.

25. 发明专利

JPH11262737A CONSTRUCTION METHOD OF WASTE DISPOSAL PLANT 失效
公开(公告)号：JPH11262737A
公开(公告)日：1999-09-28
申请号：JP6998998
申请日：1998-03-19
申请人： OHBAYASHI CORP
发明人： ISHIDA MICHIHIKO , SHIBATA KENJI
IPC分类号： B09B1/00
摘要： PROBLEM TO BE SOLVED: To provide an asphalt paving layer to an inclined surface large in gradient. SOLUTION: When an asphalt paving layer 14 is formed to an inclined surface 10b, asphalt blocks 16 are laid and the joint parts between the laid asphalt blocks 16 are filled with a water stopping filler 18 to mutually fix the asphalt blocks 16. The asphalt blocks 16 are enhanced in strength and water barrier properties by preliminarily applying tumbling pressure treatment to the blocks 16.

26. 发明专利

JPH10151426A WATER INTERCEPTION STRUCTURE IN WASTE DISPOSAL SITE 失效
公开(公告)号：JPH10151426A
公开(公告)日：1998-06-09
申请号：JP31490596
申请日：1996-11-26
申请人： OHBAYASHI CORP
发明人： KOTANI KATSUMI , ISHIDA MICHIHIKO , KUROIWA MASAO
IPC分类号： B09B1/00
摘要： PROBLEM TO BE SOLVED: To provide a water interception structure in a waste disposal site in which even when heavy machinery is traveled and circled in the upper part, the water interception structure strongly supports load thereof and easily avoids being damaged by deflection and torsion and also even when subsidence due to compression, compaction and decomposition or the like is caused in waste, the water interception structure is not retreated thereby and damaged. SOLUTION: A water interception structure 10 is installed in the bottom of a waste disposal site 11 to prevent sewage from being leaked from the inside of the disposal site 11 to the ground of the circumference. The water interception structure 10 consists of lower layer watertight asphalt 12 which covers the ground 20 of the bottom and is laid, a water permeable asphalt layer 13 provided on the upper face of the lower layer watertight asphalt 12 and upper layer watertight asphalt 14 which covers the upper face of the water permeable asphalt layer 13 and is formed. Further, the water permeable asphalt layer 13 is partitioned into a plurality of compartments 17 by partition weirs 15 and also monitoring pipes are provided in the respective compartments 17.

27. 发明专利

JPH10128267A WASTE DISPOSITION PLANT AND ITS BUILDING METHOD 失效
公开(公告)号：JPH10128267A
公开(公告)日：1998-05-19
申请号：JP28685996
申请日：1996-10-29
申请人： OHBAYASHI CORP
发明人： KOTANI KATSUMI , TAKEMOTO MASAHIRO , ISHIDA MICHIHIKO , KUROIWA MASAO
IPC分类号： B09B1/00
摘要： PROBLEM TO BE SOLVED: To surely prevent the leaching of polluted water to the outside. SOLUTION: This disposition plant has underground continuous walls 10 and permeable layers 12. These continuous walls 10 are made impervious and are closed by impermeable layers on their bottom end side. These permeable layers 12 are disposed in the intermediate positions of the continuous walls 10 and comprise permeable materials 12a and hole parts 12b for water feed and discharge. The bottom ends of the permeable materials 12a exist upper than the bottom ends of the continuous walls 10 and are installed down to the depth arriving at the impermeable layers. In this disposition plant, the water level of the permeable layers 12 is so controlled by a controller 22 as to be kept higher at all times than the water level of the waste 20. A first water level sensor 24 for detecting the water level of the permeable layers 12 and a second water level sensor 26 for detecting the water level of waste 20 are connected to this controller 22. A water feed pump 28 for feeding the water to the hole parts 12b and a water drain pump 30 for discharging the water from the hole parts 12b are connected to the controller.

28. 发明专利

JPH08260867A LOST CIRCULATION PREVENTIVE METHOD OF MUDDY WATER IN MUDDY WATER METHOD 失效
公开(公告)号：JPH08260867A
公开(公告)日：1996-10-08
申请号：JP6792895
申请日：1995-03-27
申请人： OHBAYASHI CORP
发明人： SAKAMOTO SHUICHI , ISHIDA MICHIHIKO
IPC分类号： E21B21/00 , E02D15/00
摘要： PURPOSE: To enhance the effect of preventing lost circulation of muddy water by mixing high water-absorption fibers in stable water (muddy water) which prevents the collapse of an excavated wall surface when constructing an underground continuous wall and jamming up a clearance on the excavated wall surface and cutting down a flow passage of muddy water. CONSTITUTION: Fibers under a double structure which comprise an inner layer which serves as a core formed with acrylic fibers and an outer layer formed with high water absorption polymers which surround the inner layer, are mixed with bentonite muddy water, polymer muddy water and so forth, thereby producing a stable liquid. Then, a stable liquid (muddy water) 22 is supplied into an excavated ditch hole 20, thereby penetrating the fibers in the muddy water into the clearances between soil particles in a deep and extensive range, and swelling and jamming up and cutting down the flow passage of muddy water. The preventive effect of lost circulation of muddy water is forced to be held for a long time. This construction makes it possible to reduce the amount of high water-absorption fibers to be used.

29. 发明专利

JPH03244711A PREVENTING GROUND SINKING DUE TO EXTRACTION OF EARTH HOLDING MEMBER 失效
公开(公告)号：JPH03244711A
公开(公告)日：1991-10-31
申请号：JP4124990
申请日：1990-02-23
申请人： OHBAYASHI CORP
发明人： ISHIDA MICHIHIKO
IPC分类号： E02D3/12 , E02D9/02 , E02D13/00
摘要： PURPOSE:To prevent ground from sinking by attaching a thin plate for preventing earth and sand from adhering at the bottom of an earth holding member, leaving the plate in the ground when the earth holding member is extracted, and filling the cavity left after the earth holding member is extracted with filling material. CONSTITUTION:When steel sheet piles 10 connected to each other are driven into the earth E to form a temporary earth stop wall, a thin plate 12 is attached to the bottom end of the steel sheet piles 12. The thin plate 12 is bent in the middle of its length and turned back to form an approximate U shape. When the installation work is finished, the steel sheet piles 12 are extracted and the thin plate 12 is left in the deepest position where the steel sheet piles 10 are driven down. The cavity 14 formed when the steel sheet piles 10 are extracted is filled with a solidifying agent such as mortar. Thus the ground around the construction site and built structures are prevented from sinking.

30. 发明专利

JPH0333316A REINFORCING TECHNIQUE OF SOFT GROUND 失效
公开(公告)号：JPH0333316A
公开(公告)日：1991-02-13
申请号：JP16377189
申请日：1989-06-28
申请人： KINJIYOU RUBBER KK , OHBAYASHI CORP
发明人： NOMURA TADAAKI , KOTANI KATSUMI , ISHIDA MICHIHIKO , SASAKI TORU
IPC分类号： E02D3/00
摘要： PURPOSE:To enable execution regardless of the properties of soft ground by penetrating a mandrel, into which a flexible hose is incorporated, into the ground, drawing the mandrel while leaving the hose in the ground and impregnating a curable fluid into the hose. CONSTITUTION:A cylindrical mandrel 12 into which a flexible liquid-dense hose 10 is incorporated is penetrated into soft ground E up to fixed depth in the approximately vertical direction. The mandrel 12 is drawn from the ground E with the hose 10 left in the ground E. The upper end of the hose 10 is cut near the upper section of the ground, a band 20 is mounted under the state in which a filling pipe 18 connected to an impregnation pump 16 is inserted into the hose 10, and a curable fluid 22 is impregnated. When a fixed quantity of the curable fluid 22 is impregnated, the upper end of the hose 10 is closed by the band 20. The curable fluid 22 is cured, and a pile-shaped hardened body 24 is formed into the ground E.

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