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11. 发明专利

JPS61145281A STABILIZATION OF GROUND 失效
公开(公告)号：JPS61145281A
公开(公告)日：1986-07-02
申请号：JP26642584
申请日：1984-12-19
申请人： NITTO CHEMICAL INDUSTRY CO LTD , NIPPON SOIL ENG , YAMAGUCHI KIKAI KOGYO KK
发明人： TAZAWA SHUNSUKE , KURIHARA KATSUHIKO , TAKEUCHI KENJI , HORIBA AKIRA , ISHIDA MITSUHARU , KASHIMA SHOICHI , MURATA MINEO
IPC分类号： C09K17/00 , C09K17/02 , C09K17/12 , C09K103/00
摘要： PURPOSE:To instantly charge the gelling time of a grout and to make solidification of the stable ground possible, by adequately switching part of either an aq. soln. of sodium silicate or a curing agent-contg. soln. to water and switching the water for the soln. in response to conditions of the ground during injection of the grout to the ground. CONSTITUTION:CO2 and water are supplied respectively from a CO2 tank 1 and a water tank 6 to a first mixer 5 to prepare pressurized carbonated water. Aqueous sodium silicate soln. is separately supplied from an aq. sodium silicate soln. tank 15 to a two cylinder-type grout injection pump 14 and supplied to a second mixer 18. On the other hand, the pressurized carbonated water is supplied from the first mixer 5 to the second mixer 18 by a pump 10. Thus a grout is prepd. and injected into the earth. It cures in the ground to stabilize the ground. During the process, a part of said soln. is adequately switched to water from a water tank 11 and, if necessary, the water is switched to the soln. in response to conditions of the ground. It is possible to instantly change gelling time and solidify the stable ground.

12. 发明专利

JPH0681337A INJECTION METOD USING CARBONIC ACID GROUP 失效
公开(公告)号：JPH0681337A
公开(公告)日：1994-03-22
申请号：JP23740392
申请日：1992-09-04
申请人： NITTO CHEMICAL INDUSTRY CO LTD , NIPPON SOIL KOGYO KK , YAMAGUCHI KIKAI KOGYO KK
发明人： TAZAWA SHUNSUKE , KURIHARA KATSUHIKO , KASHIMA SHOICHI , MURATA MINEO
IPC分类号： E02D3/12
摘要： PURPOSE:To suppress the disturbance of the ground to the minimum, inject a chemical in the state that slime is rarely generated, increase the improved diameter as compared with that by the infiltration injection of the chemical, and provide an improved body having high strength. CONSTITUTION:Carbon dioxide is reacted with water glass to form a carbonic acid grout G1, and it is injected into the ground via an injection pipe 70 installed in the ground in this construction method. The carbonic acid grout G is discharged from a discharge port 75 of the injection pipe 70 at the discharge pressure of 40-400kg/cm G in the state that the carbon dioxide is partially reacted with the water glass and the reaction is not completed at the time of the discharge. During this injection process, a cement material G2 having the homogel strength of 30kg/cm or above is injected from an injection port 76 formed on the tip side than the discharge port 75 of the carbonic acid grout G1. The carbonic acid grout G1 is discharged and the cement material G is injected during the lifting process of the injection pipe 70.

13. 发明专利

JPH051661A PRESSURE FEED DEVICE 失效
公开(公告)号：JPH051661A
公开(公告)日：1993-01-08
申请号：JP15156091
申请日：1991-06-24
申请人： NITTO CHEMICAL INDUSTRY CO LTD , YAMAGUCHI KIKAI KOGYO KK
发明人： KURIHARA KATSUHIKO , TAZAWA SHUNSUKE , MURATA MINEO
IPC分类号： B65G53/30 , B65G53/66 , F04B15/02 , F04B53/10
摘要： PURPOSE:To prevent the occurrence of adhesion and clogging within a pressure feed device as well as to enhance pressure feed performance when material including solid particles, selfhardening material and high visous material are fed with pressure. CONSTITUTION:A cylinder is divided into a base end side cylinder 32, a cylinder rotating barrel section 32 which includes a valve seat 32c forming section while being made rotatable around the axial center of the cylinder, and a tip end side cylinder 33. The cleaning bar 32a is provided, which is projected to the side section of a check valve 37 out of the valve seat 32c of the rotating barrel section 32, and a circular seal member 41 is concurrently provided close to the base end of the inner wall surface of the cylinder rotating barrel section 32. In addition, a pressure feed material suction port 31b is provided for the base end side cylinder 31.

14. 发明专利

JPH04161666A CRACK FILLING AUXILIARY TOOL 失效
公开(公告)号：JPH04161666A
公开(公告)日：1992-06-05
申请号：JP28888790
申请日：1990-10-26
申请人： NITTO CHEMICAL INDUSTRY CO LTD , YAMAGUCHI KIKAI KOGYO KK
发明人： KURIHARA KATSUHIKO , ISHIDA HIDEO , TAZAWA SHUNSUKE , MURATA MINEO
IPC分类号： E04G23/02
摘要： PURPOSE:To secure liquid tightness of a filling material and to improve workability by interposing a filling auxiliary, tool with a tapered part, the pipe outer diameter of which gradually and successively extends to a size larger than the diameter of a filling opening from the head end part to the base end part, between the head edge of the filling pipe and the filling port. CONSTITUTION:The outer diametrical measurement of the head end part of a filling auxiliary tool 1 is extended in a gradually tapered shape toward the base end part so that the head end part can be inserted into a filling port (h), and the outer diameter on the base end side is formed in an outer diametrical measurement larger than the diameter of the filling port (h). Additionally, a flexible sleeve 2 is wrapped and attached around the outer periphery of a tapered part A. And a same inner diametrical part B is formed from the base end toward the head end side on the inner side of the rear part of the filling auxiliary tool 1. Thereafter, a filling pipe 3 with a sleeve packer 6 is inserted into the auxiliary tool 1 and the sleeve packer 6 expanded in the diametrical direction, and the sleeve packer 6 is tightly adhered on the inner surface of the same inner diametrical part B.

15. 发明专利

JPH04312613A GROUTING WORK 失效
公开(公告)号：JPH04312613A
公开(公告)日：1992-11-04
申请号：JP7637891
申请日：1991-04-09
申请人： NITTO CHEMICAL INDUSTRY CO LTD , NIPPON SOIL KOGYO KK , YAMAGUCHI KIKAI KOGYO KK
发明人： TAZAWA SHUNSUKE , KURIHARA KATSUHIKO , KASHIMA SHOICHI , MURATA MINEO
IPC分类号： E02D3/12
摘要： PURPOSE:To permit two liquids to join and react exactly without unreaction by a method in which pressure-sending operations for each liquid in a grouting pump are tuned up in such a way as to enable the flow ratios of each liquid coming into the joint flow portion to keep constantly with time. CONSTITUTION:In a dissolving tower 5, CO2 directed from a CO2 gas bomb 2 is dissolved into water jetted from a water tank 1 to obtain a carbonic acid water. The carbonic acid water is supplied through a pipe 7 into the first plunger 21, whereas water glass from a water glass tank 3 is supplied through a pipe 8 into the second plunger 22. Both the carbonic acid water and the water glass from the first and second plungers are sent through a swivel 13 into an injection tube 14 and then joined together in a mixing reaction chamber 14B for reaction to obtain a grout. The grout is injected through the nozzle mouth of the tip into the surrounding ground.

16. 发明专利

JPH04118467A DEVICE FOR INJECTION OF LIQUID TO CRACK IN STRUCTURE 失效
公开(公告)号：JPH04118467A
公开(公告)日：1992-04-20
申请号：JP23848590
申请日：1990-09-07
申请人： NITTO CHEMICAL INDUSTRY CO LTD , YAMAGUCHI KIKAI KOGYO KK
发明人： KURIHARA KATSUHIKO , ISHIDA HIDEO , TAZAWA SHUNSUKE , MURATA MINEO
IPC分类号： E04G23/02
摘要： PURPOSE:To prevent backflow of liquid by a method wherein supply passages for delivery of different materials are connected corresponding to each of flow passages of an injection tube having a plurality of flow passages, and selector valves and check valves are provided respectively to each of the supply passages. CONSTITUTION:An injection tube is formed of an outer tube 1 and an inner tube 2 which are concentrically provided, and a liquid supply passage 10 leading to the inside of the inner tube 2 for delivery of liquid A of two-component setting material and a liquid supply passage 20 leading to a gap between the inner tube 2 and the outer tube 1 for delivery of liquid B of the two-compound setting material are connected to the injection tube. Selector valves 11 and 12 which switch the flow of the material in the directions either to delivery side or to a side for drain to the outside, and ball type check valves 12 and 22 are provided respectively to the liquid supply passage 10 for the liquid A and the liquid supply passage 20 for the liquid B. Then the liquid A and the liquid B are injected under pressure into the liquid supply passages 10 and 20 by operation of a pressurized delivery pump which delivers the liquid A and the liquid B simultaneously. The liquid A and the liquid B are then mixed in a mixing chamber S and are injected into a crack C while they are interacting each other for setting. Thereby backward flow of the liquid can be prevented.

17. 发明专利

JPS61145280A STABILIZATION OF GROUND 失效
公开(公告)号：JPS61145280A
公开(公告)日：1986-07-02
申请号：JP26642484
申请日：1984-12-19
申请人： NITTO CHEMICAL INDUSTRY CO LTD , NIPPON SOIL ENG , YAMAGUCHI KIKAI KOGYO KK
发明人： TAZAWA SHUNSUKE , KURIHARA KATSUHIKO , TAKEUCHI KENJI , HORIBA AKIRA , ISHIDA MITSUHARU , KASHIMA SHOICHI , MURATA MINEO
IPC分类号： C09K17/00 , C09K17/02 , C09K17/12 , C09K17/46 , C09K17/48 , C09K103/00
摘要： PURPOSE:To quickly control the concn. by switching sodium silicate to water during injection in separately supplying an aq. soln. of sodium silicate and a curing agent to a plurality of plunger pumps, mixing the delivered solutions and injecting the mixture into the ground to stabilize it. CONSTITUTION:Carbon dioxide gas 1 as a curing agent is mixed with water 6 in a mixer 5 and the pressurized carbonic acid water obtd. is separately supplied to plunger pumps 14A and 14B of a four cylinder-type grout injection pump 14. Aqueous soln. of sodium silicate is separately supplied to plunger pumps 14C and 14D of the injection pump 14. Then the pressurized carbonic acid water delivered from the pumps 14A and 14B is combined with the aq. soln. of sodium silicate delivered from the pumps 14C and 14D and supplied to a mixer 2, and the obtd. grout is injected into the ground to stabilize it. The concm. of sodium silicate is instantly controlled by switching part of the sodium silicate soln. 16 to water during injection in response to conditions of the ground.

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