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1. 发明专利

JP2001020277A GROUND CONDITION DETECTING APPARATUS FOR USE IN JET-TYPE COMPLEX AGITATING METHOD 失效
公开(公告)号：JP2001020277A
公开(公告)日：2001-01-23
申请号：JP19385699
申请日：1999-07-08
申请人： FUDO CONSTRUCTION CO
发明人： MATSUZAWA SATOSHI , DEGUCHI TOSHIHIRO , ISHIDA OSAMU , MIYOSHI AKIHIRO
IPC分类号： E02D3/12 , G01B21/10 , G01C15/00 , G01L5/00
摘要： PROBLEM TO BE SOLVED: To measure an advanced distance of the front end of high-pressure jet under the ground, and to confirm the shape and structure of a hardened structure which has been executed, in a jet-type complex agitating method in which the high-pressure jet containing a hardener is injected from a location near an agitating blade edge into the ground, and then the hardener and ground soil are mixed and agitated to carry out soil improvement. SOLUTION: A radius measuring means formed of a cylinder 4 and a piston 5 is arranged in parallel with one of agitating blades 2. After formation of an area in which high-pressure jet 10 containing a hardener, and ground soil have been mixed and agitated, the agitating blade 2 having the radius measuring means arranged in parallel therewith is moved to the area, and the cylinder 4 and the piston 5 are extended under the ground in a radial direction by controlling oil pressure on the ground. At this time, based on fluctuations of reaction from the ground soil received by the piston 5 (determined based on a change in oil pressure) and measurement of a front end location 6 of the piston 5, an advanced distance of the front end of the high-pressure jet 10 under the ground is measured.

2. 发明专利

JPH06287937A STIRRING/MIXING TREATMENT METHOD AND DEVICE THEREOF 失效
公开(公告)号：JPH06287937A
公开(公告)日：1994-10-11
申请号：JP9517593
申请日：1993-03-31
申请人： FUDO CONSTRUCTION CO , FUDO GIKEN
发明人： OTSUKA MAKOTO , MISAKA KAZUMA , SAITO TADASHIGE , MIYOSHI AKIHIRO , ISOTANI SHUJI , KOYAMACHI NORIYUKI , SOTOZONO CHIKASHI , HAMAMOTO YOSHIHIRO , KADOTA AKIO , ITO TATSUYA
IPC分类号： E02D3/12 , E02D17/13 , E02F5/02
摘要： PURPOSE:To shorten the execution time for ground treatment at mixing hardening material in soil by enabling to form a ground treatment part out of an intrusion process and a drawing out precess while discharging a part of soil of the original ground. CONSTITUTION:A treatment device is constituted of a rotary shaft 1 provided with stirring blades 4 on the lower part side, a hollow pipe 2 formed with an opening end 2a downward, a drilling blade 9, and a screw auger 8 provided with a screw 8, and the rotary shaft 1 and the screw 8 are elevatably, normally, and reversely rotated by means of a rotation drive part 5. During the intrusion process of the rotary shaft 1, the soil at the opening end 2a of the hollow pipe 2 is only discharged by means of the screw 8, at the same time hardening material is forcedly fed through a feed pipe 6 and discharged from the discharge ports of the stirring blades 4, stirred with the soil, and a treatment intermediate part is formed. During the drawing out process, the hardening material is similarly forcedly fed through the feed pipe 6, the hardening material discharged from the discharge ports of the stirring blades is injected to the treatment intermediate part, so as to form the ground treatment part.

3. 发明专利

JPH06128936A ANCHOR MOUNTING METHOD IN SHEET DRAIN METHOD 失效
公开(公告)号：JPH06128936A
公开(公告)日：1994-05-10
申请号：JP27969292
申请日：1992-10-19
申请人： NIPPON STEEL CORP , KAJIMA CORP , FUDO CONSTRUCTION CO , KINJIYOU RUBBER KK
发明人： FUJII YASUMORI , NAKAGAWA MASAO , OSHIMA KEISUKE , MIYAMOTO TAKAYUKI , MIURA MASAYUKI , NAKAGAWA MIKIO , ENOMOTO HIROMITSU , MIURA SATORU , KAWAKAMI TAKAHIRO , ISODA TOMOHIRO , MIYOSHI AKIHIRO , INOUE YASUHIKO , AKIMOTO AKIRA , NOMURA TADAAKI , SASAYAMA KOZO , KIMURA MICHIHIRO
IPC分类号： E02D3/10
摘要： PURPOSE:To make it possible to mount an anchor with a drain material at its specified position by computing a falling distance of an anchor mounting device based on a measured value of the position of a material to be detected measured with a depth detector and a measured value of the anchor mounting device measured with a position detector. CONSTITUTION:An anchor mounting device 12 is suspended to a fixing frame 10 with a plurality of lift cylinders 11 in such a fashion that it may rise freely. When a hydraulic motor 17 drives a friction roller 18 with a signal transmitted from a control device 15 and pulls out a mandrel 1 so that its tip passes between a photoelectric switch and an optical source, the photoelectric switch is turned on. A striking depth at that time is read and stored in the control device 15. The mandrel 1 is further pulled out and the depth is read when a metal detector 2 is turned on, thereby halting the pull out operation. This stop position is stored and the anchor mounting device 12 is forced to drop up to a setting value which satisfies a specified relational expression with the lift cylinder 11.

4. 发明专利

JPH0641941A PREPARING DEVICE FOR SAND PILE, ETC. 失效
公开(公告)号：JPH0641941A
公开(公告)日：1994-02-15
申请号：JP21741192
申请日：1992-07-24
申请人： FUDO CONSTRUCTION CO , FUDO GIKEN
发明人： KATSUHARA NORIO , DEGUCHI TOSHIHIRO , ISHIDA OSAMU , ITO TATSUYA , MIYOSHI AKIHIRO
IPC分类号： E02D3/10 , G01B11/00
摘要： PURPOSE:To prevent the damage of a measuring instrument and to improve its performance by providing the upper part of a hollow casing to be interpenetrated in the ground with a light projection process section, a light reception process section and a processing section for detecting the height of a sand pile material face in the casing. CONSTITUTION:Light having specified wave length is projected from a light projection process section 6 provided on the upper part of a hollow casing 2, and reflected on a sand face S, and then received by a light reception process section 7. Signals issued from the light projection process section 6 and the light reception process section 7 are computed by a processing section 8 in relation to time for computing the height of a sand face in the casing 2. Next the quantity of discharged sand and of pressed in sand are computed, for instance, by utilizing the result of computation, and displayed by CRT, a recorder and a printer which cooperate with the computing section 8, and in the case where the above quantity is out of a designed value, an alarm is issued. Thus the damage of a measuring device caused by charging the sand can be prevented, and the height of the sand face can be detected quickly, precisely and with high accuracy.

5. 发明专利

JPH05179640A GROUND SOIL STIRRING AND BLENDING TREATMENT DEVICE 失效
公开(公告)号：JPH05179640A
公开(公告)日：1993-07-20
申请号：JP36002591
申请日：1991-12-30
申请人： FUDO CONSTRUCTION CO , FUDO GIKEN
发明人： OTSUKA MAKOTO , ISOTANI SHUJI , HAYASHI YOHEI , MATSUZAWA SATOSHI , MISAWA HISASHI , MIYOSHI AKIHIRO , SAKAI NARIYUKI
IPC分类号： E02D3/12
摘要： PURPOSE:To stop accompanying rotation of soil and achieve efficient stirring by rotating inclined stirring blades which are protruded in an approximately normal manner from inclined shaft parts of curved driving shaft while the inclined stirring blades moving soil in the vertical direction. CONSTITUTION:A driving shaft 1 is constituted with true shaft parts 1A, 1A, which are formed in a coaxial manner with the center of rotation 2 of this driving shaft 1, and an inclined shaft part 1B which is inclined relative to the center of rotation 2. Then, horizontal stirring blades 5, 7 are provided by making protrusion in an approximately normal manner from the respective center point parts of the true shaft parts 1A and the inclined shaft part 1B. Inclined stirring blades 6, 8 are provided by making protrusion in an approximately normal manner from the circumferential plane of the inclined shaft part 1B. When the driving shaft 1 is rotated, and the horizontal stirring blades 5, 7 and the inclined stirring blades 6, 8 are rotated, the inclined stirring blades 6, 8 are rotated while moving soil in the vertical direction. This movement allows the accompanying rotation of soil to be stopped, leading to efficient stirring.

6. 发明专利

JPH0424318A OUTER LAYER GROUND TREATING DEVICE 失效
公开(公告)号：JPH0424318A
公开(公告)日：1992-01-28
申请号：JP12950990
申请日：1990-05-19
申请人： FUDO CONSTRUCTION CO , FUDO GIKEN
发明人： ISOTANI SHUJI , OTSUKA MAKOTO , MATSUZAWA SATOSHI , MAEDA TADAYOSHI , MIYOSHI AKIHIRO , MISAKA KAZUMA
IPC分类号： E02D3/12
摘要： PURPOSE:To simplify the mechanism of a treating device and to reduce the cost and manhours of construction by successively moving an injection nozzle to desired positions on a ground area to be treated, with the use of a moving means, and by injecting a ground improving fluid into the ground under high pressure. CONSTITUTION:An injection nozzle part 2 is suspended from a hook mechanism 9 at the front end of an arm 8 provided to the front part of a control cabin 7 on a weak ground running vehicle 3. Further, by allowing the vehicle 3 to self-run on a weak ground 4 so as to move the nozzle part 2 which is then lowered to a predetermined position. A ground improving fluid 5 which is fed into the body 13 of the injection nozzle part 2 is injected under high pressure into the ground from the around surface through nozzles 16. Accordingly, the fluid is charged into the ground 4 while excavating the ground 4 surface.

7. 发明专利

JPS58117120A SAND PILE FORMATION WORK 失效
公开(公告)号：JPS58117120A
公开(公告)日：1983-07-12
申请号：JP21244381
申请日：1981-12-30
申请人： FUDO CONSTRUCTION CO
发明人： KAWAKAMI TAKAHIRO , MATSUMOTO HIDEKI , TAMURA TOORU , MIYOSHI AKIHIRO , MATSUMOTO TOSHIYUKI
IPC分类号： E02D3/08 , E02D3/10
摘要： PURPOSE:To improve the ground of non-uniform strength distribution to uniform ground by a method in which a vibration is given to a sand discharge and compacting part provided to the lower end of a hollow pipe for forming a sand pile by varying both or either of the frequency and amplitude according to the strength of the ground to be improved. CONSTITUTION:A sand hopper 5, a penetrator 6, an air valve 7, an air supply pipe 8, an exhaust pipe 9, and an exhaust valve 10 are attached to the upper part of a hollow pipe 1 for forming a sand pile, and an outer pipe 2, a sand discharge and compacting part 3, and a forced vertically moving mechanism 4 are provided to the lower part of the pipe 1. The hollow pipe 1 is first penetrated to a given depth into soft ground and then vertically moved continuously for compaction while operating the sand discharge and compacting part 3. In this case, the strength of the ground to be improved is detected by a separate means, and according to the variation in the strength of the ground, either or both of the frequency and amplitude of the part 3 is varied. Thus, the ground of an uniformity can be obtained.

8. 发明专利

JPS5844117A PENETRATION OF HOLLOW TUBE FOR CONSTRUCTION OF SAND PILE OR THE LIKE 失效
公开(公告)号：JPS5844117A
公开(公告)日：1983-03-15
申请号：JP14203181
申请日：1981-09-09
申请人： FUDO CONSTRUCTION CO
发明人： KAWAKAMI TAKAHIRO , MATSUMOTO HIDEKI , TAMURA TOORU , MIYOSHI AKIHIRO , MATSUMOTO TOSHIYUKI , YAMAGUCHI KOUICHIROU
IPC分类号： E02D3/08 , E02D3/10
摘要： PURPOSE:To quickly and easily penetrate a hollow tube into the ground by a method in which a vibrator is attached to the top of the hollow tube and a sand discharge and tamping part is provided to the lower part of the hollow tube. CONSTITUTION:A hollow tube 1 hung down from a wire 5 is penetrated to a given depth into the ground where it is to be constructed, and the tube 1 is continuously raised while forcibly discharging and tamping sand, etc., supplied into the hollow tube 1 from a hopper 2 by means a sand discharge and tamping part 8 driven by a piston cylinder device 7. A valve plate 9 provided at the lower end of the hollow tube 1 serves to close the lower end opening of the tube 1 during the penetration period and turns downwards during the rising period of the tube 1. During the penetration period of the tube 1, by operating both a vibrator 4 and the sand discharge and tamping part 8, the hollow tube 1 can be quickly penetrated into the ground because the vibrating effects of the vibrator 4 and the piston cylinder device 7 act on the tube 1.

9. 发明专利

JP2001040653A METHOD FOR FORMING HIGH-QUALITY SOLIDIFICATION-TREATED PILE 失效
公开(公告)号：JP2001040653A
公开(公告)日：2001-02-13
申请号：JP21674099
申请日：1999-07-30
申请人： FUDO CONSTRUCTION CO
发明人： MIYOSHI AKIHIRO , OTSUKA MAKOTO , MATSUZAWA SATOSHI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide the method for forming a high-quality solidification-treated pile, in whcih the dispersion of quality is reduced when the solidification-treated pile is to be formed for improving a ground and which has high compressive strength. SOLUTION: The front end of a mechanical type agitator 10 is conformed to the core of a column body to be formed and agitating shafts 2 are rotated, agitating blades 3 are turned, discharging a solidifying material from the front end of the device 10 in excavating or pulling-up, and a columnar body is formed, mixing and agitating the solidifying material with excavated materials. A spare process, in whcih the front end of the mechanical type agitator 10 is conformed to the core of the columnar body to be formed and the agitating shafts 2 are revolved, the agitating blades 3 are rotated without discharging the solidifying material from the front end of the device 10, excavation is conducted, unfastening excavated materials, the agitating shafts 2 are turned or rotated reversely as they are when the blades 3 reach near designed depth and the agitating shafts 2 are pulled up on a ground, unfastening excavated materials, is provided as a preprocess in which the method is executed.

10. 发明专利

JPH0860972A METHOD AND DEVICE FOR DISCHARGING EARTH 失效
公开(公告)号：JPH0860972A
公开(公告)日：1996-03-05
申请号：JP21328894
申请日：1994-08-16
申请人： FUDO CONSTRUCTION CO , FUDO GIKEN
发明人： OTSUKA MAKOTO , ISOTANI SHUJI , MIYOSHI AKIHIRO , KURINAMI KEIJI , ITO TATSUYA
IPC分类号： E02F7/00 , E21B10/44
摘要： PURPOSE: To efficiently perform a transporting operation or the like after discharging and to enhance safety and appearance by enabling a discharging process for earth, etc., fed by a continuous screw to be carried out above the ground. CONSTITUTION: In a discharging structure of earth and the like, in which a continuous screw 3 having a spiral blade 6 is turned while being passed through a hollow pipe 4 and thereby earth, etc., that is taken into the structure from below the hollow pipe 4 is discharged upward along the continuous screw 3, an opening window 7 is provided in a portion of the periphery of the hollow pipe 4. The blade portion 6b of the continuous screw 3 which corresponds to the opening window 7 is deformed to be dissimilar in shape to the other blade portion 6a. As the blade portion 6b deformed into the dissimilar shape imparts a parting force to the earth fed along the blade 6a, the earth is gradually discharged through the opening window 7.

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