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11. 发明专利

JPH0468199A COMBINING METHOD AND BRANCHING METHOD OF TUNNEL 失效
公开(公告)号：JPH0468199A
公开(公告)日：1992-03-03
申请号：JP18129490
申请日：1990-07-09
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KAZAMA HIROSHI , INOUE YOSHINOBU , NEGAMI YOSHIAKI , MIYAKE NORIJI , DENDA ATSUSHI , KUBO HIROYUKI , MIYAZAWA KAZUO , NISHIMURA SHINICHI , OGIWARA HIDEKI , KIKUCHI YUICHI , KIUCHI TSUTOMU , GOTO TORU , HASEGAWA MAKOTO , KAWAKAMI FUSAO , HONDA AKIHIRO , IKEDA SHOEI , NAKAGAWA TAKAO , SHIBUE KUNIO , SUZUKI YASUMASA , TSUJI HIDEO , ARATO TAKICHI , IMAI MINORU , GOTO SHIGERU , KAWAI TORU , KAWAGUCHI HIROYUKI , TANAKA DAIZO , SHIGETA YASUHIKO
IPC分类号： E21D9/06 , E21D9/00 , E21D9/01 , E21D9/04 , E21D13/02
摘要： PURPOSE:To facilitate execution by combining gradually axes of tunnels, and finally converging courses of a plurality of tunnels constituted of a tunnel structural body consisting of a large number of extra small tunnel structures and tunnel spaces into one. CONSTITUTION:A large number of extra small tunnel structures 4, 4... are connected to each other, and courses of tunnels T1 and T2 constituted of tunnel structural bodies 2A and 2B forming tunnel spaces 3A and 3B against earth pressure of a bedroc are modified to be finally converged with the axes of tunnels approaching gradually to each other. The tunnels T1 and T2 are close near to each other to intrude successively mutual extra small tunnel structures to overlap from the time when the structural bodies 2A and 2B are brought into contact with each other, and a middle wall 12 is formed in a composite portion. In addition, the radius of curvature of a curved section other than the middle wall 12 is gradually increased, and finally it is converged into one tunnel structural body having a specific radius. According to the constitution, manpower can be reduced.

12. 发明专利

JPH0343514A FOUNDATION IMPROVEMENT METHOD 失效
公开(公告)号：JPH0343514A
公开(公告)日：1991-02-25
申请号：JP17781589
申请日：1989-07-10
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： NISHIO SHINYA , GOTO SHIGERU , BABA KOKICHI
IPC分类号： E02D3/00 , E02D3/10
摘要： PURPOSE:To prevent a sand-like foundation from being fluidized upon earthquake by intruding an injecting means in the foundation so as to inject a liquid mixed with a slight quantity of air-bubbles from the top end thereof under pressure, and by disposing a draining means in the foundation so as to drain underground water. CONSTITUTION:An innumerous number of small blind air-permeable holes are formed in a side wall and a block plate which blocks the front end of an injection pipe 3. Then, an air-bubble mixing device 4 is composed of a closed pressure container 10, a compressor 11, a means for feeding water 12 into the container 10 and an agitator 13. Further, the injection pipe 3 is intruded into a sand-like foundation having a condition nearly equal to a substantially complete saturation, perpendicularly thereto, and well points 5 are also intruded thereinto. Liquid mixed with air-bubbles produced from the air-bubbles mixing unit is charged under pressure from the top end of the injection pipe 3, and underground water is drained from the well points 5. With this arrangement it is possible to promptly and simply inject air-bubbles into the foundation, thereby a rise of the foundation caused by an increase in underground water and the like can be restrained.

13. 发明专利

JPH02190596A SHIELD MACHINE 失效
公开(公告)号：JPH02190596A
公开(公告)日：1990-07-26
申请号：JP917189
申请日：1989-01-18
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： AZUMA YOJI , GOTO TORU , YOSHIKAWA AKIRA , HAGIWARA HIDEKI , OKAZAKI MASAYOSHI , GOTO SHIGERU
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PURPOSE:To effectively use most of excavated cross-sectional areas without forming unnecessary cross-sectional areas, by setting an auxiliary shield formed eccentrically to a master shield and formed to be moved forward or backward along an axial line, in the master shield. CONSTITUTION:In a master shield 2 provided with a cutter 6 in front of a cylindrical skin plate 4, an auxiliary shield 3 provided with the cylindrical skin plate 5 of a diameter smaller than that of the akin plate 4 on the side of the master shield 2, and a cutter 7 set in front of the skin plate 5, is formed eccentrically to the master shield 2, and is formed to be moved forward or backward along an axial line. After that, the cutter 6 of the heat shield 2 is composed of the plural divided cutter group 6 of different diameters for filling up a space between both the shields 2, 3. Then, the master shield 2 is set eccentrically to an estimated area for enlarging the diameter of a tunnel. Accordingly, by the master shield 2, most of excavated cross-sectional areas can be effectively used without forming wasteful excavation spaces.

14. 发明专利

JPH02125013A FLUIDIZATION PREVENTING METHOD FOR SANDY GROUND 失效
公开(公告)号：JPH02125013A
公开(公告)日：1990-05-14
申请号：JP27699988
申请日：1988-11-01
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： NISHIO SHINYA , GOTO SHIGERU , BABA KOKICHI
IPC分类号： E02D3/00
摘要： PURPOSE:To prevent fluidization of sandy ground by penetrating pipes with minute air permeant holes into the sandy ground in the state of nearly complete saturation and pressing the air into the pipes from air press-in devices so as to inject extremely small bubbles into the sandy ground from the air permeant holes. CONSTITUTION:Pipes 3 with many minute air permeant holes are vertically interpenetrated into the sandy ground 1 as well as air press-in devices are connected to the upper ends of these pipes 3. The air is pressed into the pipes 3 so as to inject extremely small quantities of bubbles into the sandy ground from the air permeant holes. The pressure in the pipes 3 of the air press-in device 4 installed on the ground is kept higher than that of the surrounding sandy ground 1 for a long period of time in order to lower the degree of saturation of the ground 1. The intensity of fluidization is heightened up to the desired intensity, and the rise of spacing hydraulic pressure generated at the time of earthquake is thereby decreased and suppressed to the appropriate level. The fluidization generated at the time of earthquake can be thus prevented even in the sandy ground in the state of nearly complete saturation.

15. 发明专利

JPS63194017A GROUND-FREEZING SAMPLING METHOD AND DEVICE 失效
公开(公告)号：JPS63194017A
公开(公告)日：1988-08-11
申请号：JP2787387
申请日：1987-02-09
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： TAMAOKI KATSUYUKI , GOTO SHIGERU , NISHIO SHINYA , SHAMOTO YASUHIRO , AKAGAWA SATOSHI
IPC分类号： E02D1/04 , G01N1/08
摘要： PURPOSE:To prevent a frozen section from being expanded and enable sampling without turbulence, by excavating a large aperture hole and by arranging freezing pipes with fitted adiabatic material from the bottom surface of the hole to a specified depth, to freeze a specified area. CONSTITUTION:After a large aperture hole 1 is excavated and one or more first guide pipes 6a are arranged in the hole 1, the hole 1 is backfilled. After that, the boring of a freezing pipe section is performed, and a guide pipe 2 for freezing pipes is set; in the pipe 2, a freezing external pipe 4a and a freezing internal pipe 4b are arranged. On a section up to a specified depth inside the freezing external pipe 4a, adiabatic material 5 is fitted. After that, a refrigerant is fed and freezing ground A for sampling is frozen. Then, cut-off material is used together with, and through the internal section of the first guide pipes 6a, second guide pipes 6b are arranged. Besides, after freezing-progressive ground B is frozen, core sampling is performed by a double core tube 7.

16. 发明专利

JPS6288938A CONVEYING AND STORING DEVICE FOR TEST PIECE OF FREEZE SAMPLING OF GRIT GROUND 失效
公开(公告)号：JPS6288938A
公开(公告)日：1987-04-23
申请号：JP22953385
申请日：1985-10-15
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： TAMAOKI KATSUYUKI , GOTO SHIGERU , SHAMOTO YASUHIRO , NISHIO SHINYA , AKAGAWA SATOSHI , AZUMA YOJI
IPC分类号： G01N1/08 , G01N1/04 , G01N1/28
摘要： PURPOSE:To evade the breakage of a test piece by composing a container of a lid body and a two-division cylindrical external shell made of steel lined with expanded styrol having a buffering and heat insulating function when a frozen body to be tested sample from the grit ground is conveyed and stored, and blowing gas of liquefied nitrogen into the container after pressing in the test piece. CONSTITUTION:The container conveying and storing the test piece 5 which is sampled from the frozen ground is constituted. Namely, a two-division cylindrical external shell 1 and a base plate 2 are formed by using a steel material which has resistance to a shock and its internal surface is lined with styrofoam 3 having a buffering and heat insulating function while a notch 8 is formed in the internal-diameter direction. Further, a receiving plate 10 which has casters 11 is provided on the reverse surface of the external shell 1 and a receiving plate 12 is stacked on the top surface. Thus, the container is constituted, the external shell 1 is opened to put the test piece 5 which has the external surface covered with a rubber membrane 4, and the external shell 1 is closed with a bolt, thereby blowing gaseous LN2 through a valve 9 while pressing in the test piece 5.

17. 发明专利

JPS61207714A METHOD OF IMPROVING SANDY GROUND 失效
公开(公告)号：JPS61207714A
公开(公告)日：1986-09-16
申请号：JP4765485
申请日：1985-03-11
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： MIYAMOTO TAKESHI , TAMAOKI KATSUYUKI , GOTO SHIGERU , SHAMOTO YASUHIRO
IPC分类号： E02D3/12
摘要： PURPOSE:To reinforce a sandy ground, by a method wherein suspension, in which fine clay, such as bentonite, is suspended, is stored up to a given water level in a hole or a trench in the sandy ground. CONSTITUTION:Bentonite muddy water 3 having bentonite concentration of weight ratio of 5% or less is fed in a hole 2 through a muddy water pipe 7 from a muddy water feed source, and is stored up to a given water level by means of a ball tap 8. Thereafter with a pump 4 driven, the muddy water 3 pumped up from a bottom 2b of the hole 2 is discharged in the hole 2 again. This enables suspension to be uniformly penetrated in a ground without requiring an expensive installation.

18. 发明专利

JPS6054460B2 失效
公开(公告)号：JPS6054460B2
公开(公告)日：1985-11-30
申请号：JP4625781
申请日：1981-03-31
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： GOTO SHIGERU
IPC分类号： E02D5/34 , E02D5/30 , E02D27/12

19. 发明专利

JP2003138877A SHIELD TUNNEL CONSTRUCTION METHOD AND FILLER 审中-公开
公开(公告)号：JP2003138877A
公开(公告)日：2003-05-14
申请号：JP2001342511
申请日：2001-11-07
申请人： SHIMIZU CONSTRUCTION CO LTD , RASA IND LTD
发明人： ASO TOSHIMITSU , HOSOI MOTONORI , WATANABE MAHO , GOTO SHIGERU , ONISHI AKIRA , SORANISHI MASAO , MIYANO TAKANORI
IPC分类号： E21D9/06 , C09K17/02 , C09K17/20 , C09K17/40 , C09K103/00 , E21D11/00
摘要： PROBLEM TO BE SOLVED: To rationally hold the ground of an overbreak part in a shield tunnel construction method. SOLUTION: When performing an overbreak of a cross section larger than a normal cross section at a turning part of a shield driving machine or part of a tunnel at which its cross section is altered, the overbreak part A is excavated while holding the ground by filling the overbreak part A with the gel filler 5 having fluidity and non-permeability to the ground. After the shield driving machine 1 has passed the overbreak part, a back-fill material 3 is filled, the filler is recovered, and the back-fill material is cured. This method is similarly applied to a part of the tunnel at which its cross section is enlarged or contracted. The filler is obtained by mixing bentonite, water, and polyacryl-amide- based high-molecular coagulant so as to display gel properties. Their compounding ratios are each set within the ranges of 77.1-85.0 wt.%, 14.7-21.9 wt.%, and 0.1-1.4 wt.%.

20. 发明专利

JP2003119813A SLOPING LONGITUDINAL UNDERGROUND STRUCTURE 审中-公开
公开(公告)号：JP2003119813A
公开(公告)日：2003-04-23
申请号：JP2001316129
申请日：2001-10-15
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： GOTO SHIGERU
IPC分类号： E02D31/12 , E02D31/08
摘要： PROBLEM TO BE SOLVED: To provide a sloping longitudinal underground structure prevented from uplifting by restraining so that ground volume under the structure will not vary even in the sloping direction of the structure. SOLUTION: The sloping longitudinal underground structure prevents changes in volume during liquefaction of ground 2 under the structure, by installing blocking walls 3 that reach unliquefied ground 4 on both sides of the underground structure 1. The underground structure comprises bulkheads 7 installed at a predetermined interval to each other while reaching the unliquefied ground 4 and being perpendicular to the longitudinal direction of the underground structure, and protrusions 10 each positioned below the structure to clamp the top end 17 of each of the bulkheads.

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