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1. 发明专利

JPH11323909A LIMITED RANGE GROUND IMPROVING CONSTRUCTION METHOD 失效
公开(公告)号：JPH11323909A
公开(公告)日：1999-11-26
申请号：JP11339199
申请日：1999-04-21
申请人： KAJIMA CORP , CHEMICAL GROUT CO
发明人： HAYAKAWA YASUYUKI , KUBO HIROAKI , SUZUKI SHIGETAKA
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a ground improving construction method by jet grout capable of reliably controlling an improved diameter even under any ground condition and capable of obtaining a target improved quality. SOLUTION: An extra-high pressure jet pipe 3 having in the tip part a monitor 3a blowing out an extra-high pressure jet in the horizontal direction is arranged in the central part of a casing 1 or a ring bit shoe. Ground is improved by cutting, agitating and mixing earth/sand and solidifying material slurry in a limited range by blowing out the extra-high pressure jet from the monitor 3a while inserting the casing 1 or the ring bit shoe into the ground.

2. 发明专利

JPH09273145A WATER DEPTH GROUND IMPROVEMENT METHOD 失效
公开(公告)号：JPH09273145A
公开(公告)日：1997-10-21
申请号：JP8225996
申请日：1996-04-04
申请人： CHEMICAL GROUT CO , KAJIMA CORP
发明人： KUBO HIROAKI , SUZUKI SHIGETAKA , HAYAKAWA YASUYUKI
IPC分类号： E02D3/12 , E02D15/06
摘要： PROBLEM TO BE SOLVED: To provide a ground improvement method capable of constructing a block- shaped ground improvement body at high speed without causing environmental pollution in sea area or water basin. SOLUTION: A casing pipe 3 for bearing a hardener spouting pipe 4 having a monitor on the front end thereof on the center section with a centralizer is prepared. Then, the casing pipe 3 is conveyed to a specific position with a barge and is penetrated under the bottom of the sea with a vibro-hammer, a superhigh pressure jet J is jetted in the horizontal direction from the monitor on the front end of the hardener spouting pipe 4 at the same time as the penetration to cut earth and sand to move, the water level in the casing pipe 3 is lowered with difference in specific gravity between the inside and outside of the casing pipe 3, an air pipe and a discharge pipe are inserted into the casing pipe 3, compressed air A is jetted out from the air pipe to lead slime S to the inside of the exhaust pipe with an air-lift, the slime is sucked with a pump to discharge from the discharge pipe, the casing pipe 3 is pulled out up to specific length when it reaches specific depth, at the same time, the expansible hardener spouting pipe 4 is extend, and land formation is made with the superhigh pressure jet J, at the same time, to repeat the cycle for pulling out the casing pipe at specific speed to develop.

3. 发明专利

JP2002113454A SOIL DECONTAMINATION METHOD AND DEVICE 审中-公开
公开(公告)号：JP2002113454A
公开(公告)日：2002-04-16
申请号：JP2001255776
申请日：2001-08-27
申请人： CHEMICAL GROUT CO , KAJIMA CORP , NIPPON PEROXIDE CO LTD
发明人： SUZUKI SHIGETAKA , KAWABATA JUNICHI , TSUCHIHIRO MICHIO , IMADATE FUMIO , SATO AKIKO , MACHIDA YASUSHI , HASHIMOTO AKIHIRO
IPC分类号： B09C1/00 , B09B3/00 , B09C1/02 , B09C1/04 , B09C1/08 , C02F1/24 , C02F1/40
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for decontaminating soil by separat ing a contaminant from the contaminated soil by a water-insoluble organic substance such as an oil and the like. SOLUTION: The soil (D) contaminated by the water-insoluble organic substance, water, an alkalizing agent (A) and an oxidizing agent (O) are thrown into a separation tank (4) and the water-insoluble organic substance is made to the state that it is separated from the soil or it is easily separated from the soil. The water-insoluble organic substance is floated up on a water surface by bubbles fed into the separation tank (4) or bubbles generated in the separation tank (4).

4. 发明专利

JPH10211486A SOIL PURIFYING METHOD AND APPARATUS THEREFOR 失效
公开(公告)号：JPH10211486A
公开(公告)日：1998-08-11
申请号：JP1628497
申请日：1997-01-30
申请人： KAJIMA CORP , CHEMICAL GROUT CO
发明人： KAWABATA JUNICHI , IMADATE FUMIO , OTSUKA SEIJI , KAWAI TATSUJI , SUZUKI SHIGETAKA , KIGUCHI YOSHIO
IPC分类号： B09C1/10 , B09C1/00 , B09C1/04
摘要： PROBLEM TO BE SOLVED: To purify contaminated soil by separating a contaminant from soil contaminated with water hardly soluble org. matter such as oil. SOLUTION: Soil (D) contaminated by hardly water soluble org. matter, water and an alkali agent (A) and an oxidizing agent (O) are charged in a separation tank 4 to bring the contaminated soil to a state such that the hardly water soluble org. matter is separated or made easy to separate and the hardly water soluble org. matter is floated to the surface of the water by air bubbles supplied into the separation tank 4 or air bubbles generated within the separation tank 4. The residual soil precipitated in the separation tanks (4, 13, 14) is adjusted in its components to be accumulated to receive microbial purifying treatment.

5. 发明专利

JPH05156649A EXECUTION METHOD FOR CONSTRUCTING STRUCTURAL STUD 失效
公开(公告)号：JPH05156649A
公开(公告)日：1993-06-22
申请号：JP32744591
申请日：1991-12-11
申请人： KAJIMA CORP , CHEMICAL GROUT CO
发明人： FUJIMURA HIROSHI , OMIKA YUKIHIRO , OSADA MASACHIKA , YOSHIDA HIROSHI , SASAO HIKARI , KOBAYASHI MINORU , KUBO HIROAKI , YAMAMOTO MINORU , JINBO SHUNJI , SUZUKI SHIGETAKA
IPC分类号： E02D27/12 , E02D29/045 , E21D13/00
摘要： PURPOSE:To enhance the efficiency of construction work and to secure high accuracy in building a structural stud into a foundation consolidation portion by inserting a pipe into a vertical hole drilled in the ground, and injecting a jet to the foundation consolidation portion of the and building the structural stud into the foundation consolidation portion. CONSTITUTION:A vertical hole 2 is bored by rotation of a triple pipe 1 and a jet is injected from the end of the triple pipe 1 to cut the bent root portion of a structural stud 5. Then a stiffener is injected from the triple pipe 1 and substitues for and mixes with drilled earth and sand to form the foundation consolidation portion 3 of the structural stud 5 and form a mix 4 of earth, water and the stiffener. After the triple pipe 3 has been pulled, the structural stud 5 made by an H-steel is suspended down to build its end portion into the unhardended foundation consolidation portion 3. The structural stud 5 is fixed by jigs until the foundation consolidation portion 3 hardens enough to provide strength. Thereby junction of columns and beams can easily and surely be adjusted and the columns and the beams can be directly used, whereby economicity can be enhanced.

6. 发明专利

JPH09299924A SOIL REMEDIATION METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPH09299924A
公开(公告)日：1997-11-25
申请号：JP17626496
申请日：1996-07-05
申请人： CHEMICAL GROUT CO , KAJIMA CORP , NIPPON PEROXIDE CO LTD
发明人： SUZUKI SHIGETAKA , KAWABATA JUNICHI , TSUCHIHIRO MICHIO , IMADATE FUMIO , SATOU AKIKO , MACHIDA YASUSHI , HASHIMOTO AKIHIRO
IPC分类号： B09B3/00 , B09C1/02 , B09C1/08
摘要： PROBLEM TO BE SOLVED: To separate a contaminant from a contaminated soil without need for special mechanical treatment by charging the soil contaminated with a sparingly-water-soluble org. matter such as oil into a separation tank contg. water, then supplying an alkali agent and further supplying air bubbles to float the org. matter up on the water surface. SOLUTION: A contaminated soil D is charged into a separation tank 4 supplied with water from a hot water tank 7, and an alkali agent A such as sodium hydroxide from an alkali agent tank 5 and an oxidizing agent O such as hydrogen peroxide from an oxidizing agent tank 6 are simultaneously supplied to the separation tank 4. An agitator 8 and a heater 9 are provided to the tank 4 to keep the water in the tank 4 at a temp. appropriate to reaction, and the org. matter sparingly soluble in water is floated up on the water surface by the bubble of oxygen generated from the oxidizing agent O and then discharged from a notch 15 as a weir means. Further, an oil sucker 20 for sucking the suspending org. matter is furnished above the first and second separation tanks 13 and 14 communicated with reach other through the notch 15.

7. 发明专利

JPH09206732A METHOD FOR PURIFYING SOIL AND APPARATUS THEREFOR 失效
公开(公告)号：JPH09206732A
公开(公告)日：1997-08-12
申请号：JP2239296
申请日：1996-02-08
申请人： CHEMICAL GROUT CO , KAJIMA CORP , NIPPON PEROXIDE CO LTD
发明人： SUZUKI SHIGETAKA , TSUCHIHIRO MICHIO , KAWABATA JUNICHI , MACHIDA YASUSHI
IPC分类号： B09C1/02 , B09C1/08
摘要： PROBLEM TO BE SOLVED: To make it possible to rapidly and efficiently purify polluted soil and execute the purification treatment in an original position. SOLUTION: Injection holes H and aeration wells E arriving at a polluted region Ca where the soil G contg. pollutants exists are excavated from the ground surface. Purifying agents J for decomposing the pollutants are injected into the soil G, Ga contg. the pollutants via monitors for injection positioned within these injection holes H. The depths thereof are changed while the monitors are rotated. The undecomposed pollutants are vaporized by the keaction heat which occurs at the time of the decomposition reaction of the pollutants. The vaporized pollutants are discharged from the soil G via the aeration wells E.

8. 发明专利

JPH09125366A GROUND IMPROVEMENT METHOD FOR LIMINTED AREA 失效
公开(公告)号：JPH09125366A
公开(公告)日：1997-05-13
申请号：JP28509295
申请日：1995-11-01
申请人： KAJIMA CORP , CHEMICAL GROUT CO
发明人： HAYAKAWA YASUYUKI , KUBO HIROAKI , SUZUKI SHIGETAKA
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a targeting improvement quality by controlling a sure improvement diameter under any ground conditions. SOLUTION: A super high pressure jet tube 3 having a monitor 3a, which horizontally jets a super high pressure jet, in its tip part is provided in the center of a casing 1 or a ring bit shoe. While the casing 1 or the ring bit shoe is inserted in the ground, soil and solidification material slurry in a limited area are cut, agitated, and mixed by super high pressure jetting from the monitor 3a so as to improve the ground.

9. 发明专利

JPH1088131A SOLIDIFICATION MATERIAL AND CONSTRUCTION USING THE MATERIAL 失效
公开(公告)号：JPH1088131A
公开(公告)日：1998-04-07
申请号：JP24494596
申请日：1996-09-17
申请人： CHEMICAL GROUT CO , SUMITOMO OSAKA CEMENT CO LTD
发明人： SUZUKI SHIGETAKA , ENOMOTO TETSUO
IPC分类号： E02D3/12 , B28C7/00 , C04B28/02 , C09K17/02 , C09K17/10
摘要： PROBLEM TO BE SOLVED: To obtain a solidification material satisfying low bleeding property and low viscosity at the same time and capable of adjusting solidification strength from extremely weak strength to high strength according to mixing ratio by mixing a cement and a baked fine powdery non-swelling clay. SOLUTION: This solidification material is obtained by mixing a cement and a baked fine powdery non-selling clay, which is prepared by baking a clay at 200-700 deg.C and has a degree of swelling of /g in terms of Blaine value, preferably at a weight ratio of (1:9) to (8:2). The solidification material is useful for foundation improvement construction, liquefaction counter measure construction, back-filling construction, high cut-off underground continuous wall making construction, etc.

10. 发明专利

JP2000297590A EXCAVATION WALL CONSTRUCTION METHOD 失效
公开(公告)号：JP2000297590A
公开(公告)日：2000-10-24
申请号：JP10886099
申请日：1999-04-16
申请人： CHEMICAL GROUT CO
发明人： SUZUKI SHIGETAKA
IPC分类号： E02D17/04 , E21D1/03 , E21D5/00
摘要： PROBLEM TO BE SOLVED: To provide an excavation wall construction method requiring no earth retaining timbering for performing construction or reconstruction in a narrow space and for lowering a construction time and a construction cost. SOLUTION: This excavation wall construction method includes the following processes; an excavating building process in which a plurality of box column row walls 5 connecting working box column walls 3 installed in the four corners to each other are arranged and built in predetermined positions, a PC steel wire inserting process in which a plurality of PC steel wires 7 are curved arcuately so as to be inserted for penetrating the continuously built working box column walls 3 and the box column row walls 5, a PC steel wire straining process in which both ends in each of the PC steel wires 7 are pulled so as to be fixed to the working box column walls 3, a column wall inside concrete placing process in which concrete is charged and placed in all the working box column walls 3 and the box column row walls 5, and a shaft excavating process in which the inside of the excavation wall is dug for forming a space.

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