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1. 发明专利

JP2001020275A FOUNDATION GROUND IMPROVING METHOD 失效
公开(公告)号：JP2001020275A
公开(公告)日：2001-01-23
申请号：JP19756699
申请日：1999-07-12
申请人： ONODA CHEMICO CO LTD
发明人： KOGA YASUYUKI , SUZUKI KOICHI , MATSUDA TOMOMITSU
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To improve the ground such as sand ground which is in danger of liquefaction, and soft ground which is in danger of consolidation settlement, prior to utilization of the ground as foundation ground of a structure, and to provide stable ground as the foundation ground of the structure. SOLUTION: In the ground A supporting a structure and containing stratums B, C in which liquefaction or consolidation settlement can be expected in the event of an earthquake, vertical consolidating piles 1 each reaching a predetermined depth from the surface of the ground are arranged at predetermined intervals in a plurality of rows, to thereby construct a vertical column consolidating pile group 2. Then, a horizontal consolidating board 3 is constructed on the upper edge of the vertical column consolidating pile group 2 so as to be combined therewith in one body.

2. 发明专利

JP2001241033A GROUND IMPROVING METHOD IN WHICH HARDENED COLUMNAR BODY CAN BE ANCHORED TO HARD SUPPORTING GROUND, AND GROUND IMPROVING APPARATUS USED FOR THE METHOD 失效
公开(公告)号：JP2001241033A
公开(公告)日：2001-09-04
申请号：JP2000049157
申请日：2000-02-25
申请人： ONODA CHEMICO CO LTD
发明人： SUZUKI KOICHI , NISHIO KYO , SATO EIJI , MATSUDA TOMOMITSU
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a method for economically and definitely anchoring a round columnar hardened body to the ground and the apparatus used for the method in hard bearing ground where the improvement is proposed such as rock layer, top of the underground structure or the bottom base of a pneumatic caisson. SOLUTION: A stirring vane 3 of a stirring head 2 attached to the lower portion of a grouting rod 1 connected to a freely liftable rotation drive apparatus 9 supported by a strut 8 is formed to an improved apparatus 10 extended diagonally downward for the grouting rod 1, the grouting rod 1 is penetrated to the improved proposed ground 11 and, without overexcavation, the grouting rod 1 is rotated and pulled up and a hardened columnar body 7 is formed on the hard supporting ground 12 while jetting a hardening material 6 onto the hard supporting ground 12 from a tip nozzle 4 of the stirring vane 3 provided by sloping downward.

3. 发明专利

JP2002292361A METHOD FOR CLEANING POLLUTED SOIL 失效
公开(公告)号：JP2002292361A
公开(公告)日：2002-10-08
申请号：JP2001098178
申请日：2001-03-30
申请人： ONODA CHEMICO CO LTD
发明人： KOGA YASUYUKI , NISHIO KYO , SHINETSU TOSHIROU , MATSUDA TOMOMITSU
IPC分类号： A62D3/00 , B09C1/06
摘要： PROBLEM TO BE SOLVED: To provide a method for safely and efficiently cleaning both soil and groundwater polluted with a volatile organic chlorine compound such as tetrachloroethylene or trichloroethylene at the site without diffusing the pollutant gas into the atmosphere. SOLUTION: This method comprises driving a quick lime pile (5) into the ground (1) polluted with a volatile pollutant, sealably laying an air-tight sheet (7) over the ground surface of the pile (5) to form an air-tight space, diminishing the pressure in the space, and allowing the pile (5) to adsorb the pollutant gas volatilized by the exothermic reaction of the pile (5) with soil water.

4. 发明专利

JP2002119952A METHOD FOR CLEANING OF SOIL CONTAMINATED WITH VOLATILE ORGANIC COMPOUND AT ORIGINAL POSITION 失效
公开(公告)号：JP2002119952A
公开(公告)日：2002-04-23
申请号：JP2000311992
申请日：2000-10-12
申请人： ONODA CHEMICO CO LTD
发明人： KOGA YASUYUKI , NISHIO KYO , KIMURA FUMIHIKO , MATSUDA TOMOMITSU
IPC分类号： E02D3/08 , B09C1/00 , B09C1/04 , B09C1/06 , E02D3/10
摘要： PROBLEM TO BE SOLVED: To provide a method for simultaneously cleaning contaminated gas of volatile organic compounds and contaminated groundwater without agitating and mixing a contaminated soil by providing quick lime in a pile-like shape into the soil contaminated with the volatile organic compounds to absorb water in the soil and by generating exothermic heat of the chemical reaction. SOLUTION: By driving piles (5) of the quick lime into the contaminated soil (1) at intervals of 0.8-2.0 m, the water in the soil is absorbed (2), (3) and (4) and the volatile organic compounds are volatilized by exothermic heat of the chemical reaction without agitating and mixing the contaminated soil with the quick lime to facilitate sucking of the contaminated gas and cleaning speed can be made fast and cleaning can be performed without volatilizing the contaminated gas into the atmosphere, and at the same time, the contaminated groundwater can be cleaning. In addition, a soft ground can be improved as a secondary effect.

5. 发明专利

JP2001303541A INJECTION SWITCHING DEVICE 失效
公开(公告)号：JP2001303541A
公开(公告)日：2001-10-31
申请号：JP2000122939
申请日：2000-04-24
申请人： ONODA CHEMICO CO LTD
发明人： TSUTSUI KEISUKE , SUZUKI KEIICHI , ISHII TOSHIKI , MATSUDA TOMOMITSU
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To safely, easily and efficiently change water to a filler or vice versa in a high-pressure ejection agitating method for use in soil improvement. SOLUTION: This injection switching device 1 is inserted in a high-pressure hose 5 forcibly feeding or injecting water or a filler by means of a device comprising a rod 2 connected to the end of the high-pressure hose 5 via a swivel 4, a jet nozzle 30 having a water injection hole and a filler injection hole and connected to the end of the rod 2, and a high-pressure pump 7 connected to the opposite side of the high-pressure hose 5. The injection switching device 1 is located halfway between the swivel 4 and the high-pressure pump 7 and is provided with a pellet hole 14; pellets 20 are put in the pellet hole 14 and passed through the high-pressure hose 5 by force-feeding of the filler so that the pellets reach the pellet-receiving base 35 of the jet nozzle 30 connected to the end of the rod 2, closing the nozzle hole of the jet nozzle 30 provided below the pellet-receiving base 35, and making it possible to change water to the filler or vice versa for injection.

6. 发明专利

JP2002175314A METHOD FOR PREPARING PATENT MAP 失效
公开(公告)号：JP2002175314A
公开(公告)日：2002-06-21
申请号：JP2000371509
申请日：2000-12-06
申请人： ONODA CHEMICO CO LTD
发明人： MATSUDA TOMOMITSU , KIMURA FUMIHIKO , MATSUMURA HITOMI
IPC分类号： G06F17/30 , G06Q10/00 , G06Q10/06 , G06Q50/00
摘要： PROBLEM TO BE SOLVED: To provide a method enabling anyone for readily preparing a patent map by collecting related parent information as a group and processing and analyzing the group of patent information. SOLUTION: All items in the International Patent Classification(IPC) and subclass titles have previously been set up in a retrieval program, retrieval is executed, corresponding to the IPC allocated to each patent application document stored in a patent database, built in an external storage medium, and a patent map is prepared with only the IPC.

7. 发明专利

JP2002030651A CONSTRUCTION METHOD FOR FOUNDATION IMPROVEMENT 失效
公开(公告)号：JP2002030651A
公开(公告)日：2002-01-31
申请号：JP2000217154
申请日：2000-07-18
申请人： ONODA CHEMICO CO LTD
发明人： SHINETSU TOSHIROU , NISHIO KYO , SUZUKI KOSUKE , MATSUDA TOMOMITSU
IPC分类号： E02D3/12 , C04B28/02 , C04B103/32 , C09K17/10 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To provide a construction method for ground improvement suited for use in cases where a ground to be improved is composed of humus with high water contents where strength is difficult to achieve, or subsoil where high strength is required from a design standpoint. SOLUTION: A high-performance water reducing agent is added to a slurry of a high-concentration cement type improver by 2% to 5% of the improver to form a high-concentration, low-viscosity slurry of the cement type improver. The slurry is held in an injectable condition using a high-pressure injection stirring method, so that an improved body of high strength can be economically and efficiently constructed in humus with high water contents where strength is difficult to achieve, or in subsoil where high strength is required from a design standpoint.

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