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1. 发明专利

JPH07331657A METHOD AND EQUIPMENT FOR CLEANING UNDERGROUND PENETRATED PIPE 失效
公开(公告)号：JPH07331657A
公开(公告)日：1995-12-19
申请号：JP13221994
申请日：1994-06-14
申请人： NIPPON STEEL CORP , KAJIMA CORP , FUDO CONSTRUCTION CO , KINJIYOU GOMME KK
发明人： KORENAGA TADASHI , AKABOSHI TETSUYA , YAMASHITA TOSHIAKI , TSUJII MASATO , NAKAGAWA MIKIO , MIURA MASAYUKI , ENOMOTO HIROMITSU , KAWAKAMI TAKAHIRO , ISODA TOMOHIRO , AKIMOTO AKIRA , NOMURA TADAAKI , KAWASE TADASHI , KIMURA MICHIHIRO
IPC分类号： E02D5/22 , E02D3/10 , E02D9/02 , E02D13/00
摘要： PURPOSE:To clean an unturned mandrel automatically and positively. CONSTITUTION:In the cleaning method of an unturned mandrel at a time when the mandrel 12 penetrated into the ground is extracted, a plurality of brushes 9 turned while being brought into contact with the mandrel 12 are mounted or a plurality of water jets are formed. Mud adhering on the mandrel 12 is cleaned by these brushes 9 or water jets.

2. 发明专利

JPH07331645A ANCHOR MOUNTING METHOD IN SHEETLIKE DRAIN CONSTRUCTION 失效
公开(公告)号：JPH07331645A
公开(公告)日：1995-12-19
申请号：JP13221194
申请日：1994-06-14
申请人： NIPPON STEEL CORP , KAJIMA CORP , FUDO CONSTRUCTION CO , KINJIYOU GOMME KK
发明人： KORENAGA TADASHI , AKABOSHI TETSUYA , YAMASHITA TOSHIAKI , TSUJII MASATO , NAKAGAWA MIKIO , MIURA MASAYUKI , ENOMOTO HIROMITSU , KAWAKAMI TAKAHIRO , ISODA TOMOHIRO , AKIMOTO AKIRA , NOMURA TADAAKI , KAWASE TADASHI , KIMURA MICHIHIRO
IPC分类号： E02D5/80 , E02D3/10
摘要： PURPOSE:To insert the edge of a drain material accurately into the end opening section of a mandrel by computing and specifying the quantity of approach from a required clearance between the mandrel and a cutting fixture and the relative distance of both the mandrel and the cutting fixture immediately before approach, lifting the cutting fixture in response to the quantity of approach and receiving the mandrel from a lower section. CONSTITUTION:A lifting gear 12 is suspended to a fixing frame 9 by a plurality of lifting and lowering cylinders 8. A cuter 11 is mounted on the underside of the lifting gear 12, and a winder 13 is installed on the inside. The extraction operation of a mandrel 1 is completed, and the mandrel 1 is passed through a mechanical origin L and stopped at the place L1 of stoppage. The lifting gear 12 is lowered until the relative distance of the front end of the mandrel 1 and the mechanical origin L reaches the intervals of the arrangement of metal sensors. A drain material 3 is cut at the place, and a cut edge is held down by a turning roller 13a and wound on a roller 13c. The lifting gear 12 is brought down up to L2. Accordingly, the edge of the drain material can be inserted accurately into an opening section at the front end of the mandrel.

3. 发明专利

JPH11166398A REPAIRING METHOD OF COVERED CONDUIT 失效
公开(公告)号：JPH11166398A
公开(公告)日：1999-06-22
申请号：JP33312797
申请日：1997-12-03
申请人： NIPPON STEEL CORP
发明人： TAKANO YOSHIHIRO , AKABOSHI TETSUYA , KINOSHITA KAZUHIRO , TAKEMURA HAYATO , TAKAHASHI YASUO
IPC分类号： E21D11/14 , E03F3/04 , F16L9/08
摘要： PROBLEM TO BE SOLVED: To repair a covered conduit at a low cost in a short term of works by filling concrete having a specified slump flow between a cylinder formed by assembling and connecting circularly worked corrugated titanium pirates so as to be smaller than the inner space of a box culvert in the extending direction of the covered conduit and the box culvert. SOLUTION: A corrugated titanium plate 1 is circularly worked, assembled within the inner empty space of a box culvert 11 by use of titanium-made bolts and rivets after removing a lining so as to be smaller than the inner space, and connected in the extending direction of a covered conduit by use of titanium-made bolts and rivets, and concrete 2 having a slump flow of 60 cm or more is filled between the formed cylinder and the box culvert 11. Although the concrete 2 filling space is a perfectly closed space, a concrete construction with satisfactory adhesion can be performed since the flowing property is sufficient when the slump flow is 60 cm or more. The thin plate surface of the light-weight titanium plate 1 excellent in corrosion resistance is made into a corrugated circular member, whereby the rigidity and shape holding property are improved, and an expensive repair can be performed in an extremely short term of works.

4. 发明专利

JPH08284166A LOAD DEVICE FOR BOTH ENDS FIXED LARGE-SIZED TIE ROD 失效
公开(公告)号：JPH08284166A
公开(公告)日：1996-10-29
申请号：JP9083495
申请日：1995-04-17
申请人： FUJITA CORP , NIPPON STEEL CORP
发明人： MITA SHIGEMI , AKABOSHI TETSUYA , TSUJII MASATO
IPC分类号： E02D17/04
摘要： PURPOSE: To facilitate work with higher efficiency by fastening a turnbuckle temporally to the end of a tie rod and then mounting a pull-in hydraulic Jack to both ends and turning the turnbuckle with load being imposed. CONSTITUTION: A flattened area 1a is installed to both sides of large-sized tie rods 1 in a tie rod earth retaining method where a section steel-made mounting member 4 is fixed with a bolt-nut 5. Then, after it is temporarily fastened, a turnbuckle 2 is rotated with load being applied with a pull-in hydraulic jack set between mounting members 4, thereby securing a specified tension and providing the same load to each rod in the same manner. This construction makes it possible to prevent each rod from being loosened or deflected and secure safety as well.

5. 发明专利

JPH0563743B2 失效
公开(公告)号：JPH0563743B2
公开(公告)日：1993-09-13
申请号：JP32659187
申请日：1987-12-23
申请人： NIPPON STEEL CORP
发明人： AKABOSHI TETSUYA , HIROZAWA NORYUKI , OKA MOTOKI , MATSUOKA KAZUMI , KIHIRA HIROSHI , KIJIMA MASAKATSU
IPC分类号： G01N27/26 , G01N17/00

6. 发明专利

JPH06240780A VIBRATION ISOLATING GROOVE FOR CONTROLLING VIBRATION WITH MICRO AMPLITUDE 失效
公开(公告)号：JPH06240780A
公开(公告)日：1994-08-30
申请号：JP5460693
申请日：1993-02-22
申请人： NIPPON STEEL CORP
发明人： FUKUMOTO TATSUYA , KOBAYASHI SHIGEO , AKABOSHI TETSUYA , NAKAGAWA MASAO
IPC分类号： E02D31/08 , E04B1/98 , F16F15/02
摘要： PURPOSE:To reduce vibration of a structure on viscous subsoil, such as the loamy layer of the Kanto District, with such a micro amplitude as a distortion level of about 10 at the position of installation of the foundation thereof. CONSTITUTION:For a structure provided on viscous subsoil at a point distant from a vibration source by (L+1), when a vibration isolating groove is provided having desired width and a depth of 7.5m or less to isolate vibrations with such micro amplitudes as a distortion level of 10 at said point, the distance (1) from the vibration source to the point at which the vibration isolating groove is provided is measured. Vibration transmissivity (epsilon) is calculated from the ratio of a normal amplitude value Ld measured at said point to an allowable amplitude value La determined using equipment installed in the point. Further, the wavelength lambda of a propagating wave is calculated by measuring the velocity Vs of propagation of a shear wave through the subsoil and the vibration frequency (f) of the vibration source, and from the calculated vibration transmissivity (epsilon) and the wavelength lambda of the propagating wave, epsilon= exp{-expkX(H/lambda)} wherein (k) is a factor determined by the distance L between the vibration source and the groove. The vibration isolating groove with depth H that meets the above expression is installed.

7. 发明专利

JPH01167650A METHOD FOR DETECTING CORROSION SPEED OF METALLIC MATERIAL 失效
公开(公告)号：JPH01167650A
公开(公告)日：1989-07-03
申请号：JP32659187
申请日：1987-12-23
申请人： NIPPON STEEL CORP
发明人： AKABOSHI TETSUYA , HIROZAWA NORIYUKI , OKA MOTOKI , MATSUOKA KAZUMI , KIHIRA HIROSHI , KIJIMA MASAKATSU
IPC分类号： G01N27/26 , G01N17/00
摘要： PURPOSE:To measure the corrosion speed in corrosionproof environment directly at an actual spot in a short time by finding a fraction of anode reaction resistance at a measurement position from a potential measured value and a reference anode curve, and detecting the corrosion speed from a previously found relational expression. CONSTITUTION:A reference position 110 to be measured is set below LWL and the reference anode curve a0 is set at the position 110. The curve a0 is fixed electrically by using a corrosion speed detecting element. In an area Y where the influence of hydrogen production reaction can be ignored, the anode reaction resistance Ra of a steel pipe pit 41 corresponding to potentials of controlled four stages is measured. A solid line a1 and a broken line a2 drawn by extrapolating the solid line a1 are applied as the curve a0. Further, the corrosion speed detecting element is used to measure the potential of each position to be measured and a fraction of the anode reaction resistance is found from the potential measured values and curve a0. The corrosion speed (v) is calculated by using the equation I. Consequently, the corrosion speed in electric corrosionproof environment is measured directly at the actual site in a short time. In the equation, (v) is the corrosion speed (mm/year) of the metallic material and K is a proportion constant.

8. 发明专利

JPH11319795A REFORMING OF ALKALINE SOIL 失效
公开(公告)号：JPH11319795A
公开(公告)日：1999-11-24
申请号：JP12617398
申请日：1998-05-08
申请人： NIPPON STEEL CORP
发明人： KATO TATSUYA , FUKUNAGA KAZUHISA , MIKI OSAMU , SHINOZAKI HARUHIKO , KOBAYASHI SHIGEO , AKABOSHI TETSUYA
IPC分类号： E02D3/00 , B09C1/02 , B09C1/08 , B09C1/10
摘要： PROBLEM TO BE SOLVED: To decrease the alkalinity of soil by removing alkaline components to waste water by using sulfuric acid formed when a sulfur oxidizing bacterium, sulfur source, and water are supplied in the presence of oxygen. SOLUTION: Crushed converter slag is put into an acrylic container 1 to form a slag layer 2, reeds 3 are planted in the surface layer, and air is supplied into the slag layer 2 by a blower 4. Blast furnace slag seepage water 5 and sludge water 6, which contain sulfur and calcium, are supplied into this slag layer 2. This sludge water 6 is water by which pH of the seepage water has been adjusted to acclimatize the sulfur oxidizing bacterium. The reeds 3 supply oxygen to soil to help the growth of soil microorganisms, water is a component of a sulfuric acid production reaction by the sulfur oxidizing bacterium, is also essential to the growth of the reeds, and flows out alkali ions formed when the generated sulfuric acid reacts with alkalis from the soil. In such a way, the alkalinity can be decreased by the low-cost and effective treatment.

9. 发明专利

JPH11166397A COVERED CONDUIT EXCELLENT IN CORROSION RESISTANCE 失效
公开(公告)号：JPH11166397A
公开(公告)日：1999-06-22
申请号：JP33312697
申请日：1997-12-03
申请人： NIPPON STEEL CORP
发明人： TAKANO YOSHIHIRO , AKABOSHI TETSUYA , KINOSHITA KAZUHIRO , TAKEMURA HAYATO , TAKAHASHI YASUO
IPC分类号： E21D11/14 , E03F3/04 , F16L9/08
摘要： PROBLEM TO BE SOLVED: To improve the corrosion resistance of a covered conduit by enclosing the inner empty part with a titanium thin plate, and filling concrete to the back surface of the titanium thin plate. SOLUTION: The whole inner empty part 4 of a covered conduit is enclosed by a cylindrical titanium thin plate 1 having a circular section and formed of mutually connected corrugated plates, and concrete 2 is poured to the back surface of the titanium thin plate 1. Since a cylindrical structure formed of the corrugated titanium thin plate 1 has shape holding performance by itself, the concrete 2 can be poured to the outside without constructing a form for holding the shape, and the construction cost can be minimized. After the concrete 2 is solidified, the concrete 2 protects the titanium thin plate 1 from an external impact, and the titanium thin plate 1 has the function of protecting the concrete from corrosion. When a fluid carried in the conduit has a high temperature, for example, a cooling piping 3 is set on the outside of the titanium thin plate 1 to cool the conduit, whereby the titanium thin plate 1 and the concrete 2 can be cooled to improve the durability of the covered conduit. Since the corrosion resistance of the covered conduit is high even under corrosive environment, this conduit is extremely useful.

10. 发明专利

JPH06331491A VIBRATION-PROOF DESIGNING METHOD BASED ON EVALUATION OF ENVIRONMENTAL VIBRATION AND BUILDING DESIGNED BY THAT METHOD 失效
公开(公告)号：JPH06331491A
公开(公告)日：1994-12-02
申请号：JP14145593
申请日：1993-05-20
申请人： NIPPON STEEL CORP
发明人： KOBAYASHI SHIGEO , FUKUMOTO TATSUYA , AKABOSHI TETSUYA
IPC分类号： G01M7/00
摘要： PURPOSE:To rationally design a vibration-proof foundation and a vibration-proof facility so that the performance of a vibration-sensitive facility is assured and an excessive designing can be prevented by predicting and evaluating the generation of the maximum amplitude according to the probability theory to determine vibration-proof specifications. CONSTITUTION:Vibrations according to vibration sources 1, 2...n are predicted individually as time-series waveforms according to numerical analysis and then a plurality of obtained time-series waveforms are overlapped while they are shifted in terms of phase to calculate the maximum value. The maximum amplitude obtained as a result of the operation is statistically processed and is arranged as the histogram of abscissa maximum amplitude and ordinate frequency to obtain the generation probability distribution with the maximum amplitude of transition vibration. Then, as a result of the comparison with the generation probability of vibration according to the vibration source of force majeure such as an earthquake exceeding the allowable amplitude of a vibration-sensitive facility, the generation probability of with a rational maximum amplitude is set. A vibration-proof facility and a vibration-proof foundation are designed to enable the maximum amplitude corresponding to the set generation probability to be lower than an allowable value.

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