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1. 发明专利

CA1317511C RESIN-COATED AGGREGATES 未知
公开(公告)号：CA1317511C
公开(公告)日：1993-05-11
申请号：CA482706
申请日：1985-05-29
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： OKADA TAKEJI , SAWAIDE MINORU , IMAI MINORU , TACHIBANA DAISUKE
IPC分类号： C04B20/10
摘要： Resin-coated aggregates comprising porous aggregates, such as artificial lightweight aggregates, at least whose surfaces are coated with a phenol resin, or with a phenol resin elastomer and further with a phenol resin thereon, have a high water absorption prevention or further an external stress-damping function. 14

2. 发明专利

CA1262640A METHOD OF PLACING CONCRETE INTO A STEEL ENCASEMENT 未知
公开(公告)号：CA1262640A
公开(公告)日：1989-11-07
申请号：CA523226
申请日：1986-11-18
申请人： NIPPON KOKAN KK , SHIMIZU CONSTRUCTION CO LTD
发明人： WATANABE HIDEO , SUZUKI TOMOO , OTA TAKAYOSHI , MATSUMOTO GAKU , BESSHO TOMOHIRO , KOYAMA TAMIKI , KIMURA KATUHIKO , KAJIOKA YASUO , IMAI MINORU
IPC分类号： E02B17/00 , E02D15/04 , E02D27/52 , E04G21/02 , E02D15/00
摘要： A method of placing concrete into a steel encasement. The steel encasement is erected. A plurality of first concrete injection holes are formed through the steel encasement in a heightwise spaced manner. The concrete is injected through the lowest disposed concrete injection hole into the erected steel encasement to a level below another concrete injection hole disposed just above said lowest disposed concrete injection hole. Then, the injection step is repeated in connection with a subsequent first concrete injection hole nearest to the level, to which the concrete has been placed, for placing the concrete into the steel encasement to a predetermined level.

3. 发明专利

GB2232487A Ultrasonic measuring apparatus including a damped transducer probe 未知
公开(公告)号：GB2232487A
公开(公告)日：1990-12-12
申请号：GB9004008
申请日：1990-02-22
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KURAMOCHI MITSUGU , IMAI MINORU
IPC分类号： G01H1/04 , G10K11/00
摘要： A metallic casing (1) contains a low-frequency resin damper (4); to its front is fitted a transducer (3) and there is a connection (5) for an ultrasonic measuring apparatus which supplies electrical pulses to the transducer; the resultant high-damping probe is useful for measurement of thickness, voids and compressive strength of concrete; the damper absorbs unnecessary low frequency vibrations of the transducer so that the transmission and received waves are clearly separated. … One or more such probes can be connected to a signal conversion (eg a fast Fourier transform) means, signal processing means (a low-pass filter) and a second signal converting means (an inverse fast Fourier transform), to obtain the signal waveform of the shear wave component of the reflected wave, for measurement of the thickness. Alternatively a probe for both transmission and reception is connected to a variable-frequency transmitting means and to display means for the reflected wave; a frequency appropriate for concrete being tested can thus be transmitted by the probe; the wave will not oscillate for long and superposition of the two waves is preventable. Equations and graphs for measurement methods are disclosed. … …

4. 发明专利

GB2232487B ULTRASONIC MEASURING APPARATUS INCLUDING A HIGH-DAMPING PROBE 未知
公开(公告)号：GB2232487B
公开(公告)日：1993-08-04
申请号：GB9004008
申请日：1990-02-22
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KURAMOCHI MITSUGU , IMAI MINORU
IPC分类号： G01H1/04 , G10K11/00
摘要： A high-damping probe capable of obtaining not only sound velocity information but also other ultrasonic information useful for ultrasonic testing, such as the frequency and amplitude of the received wave, and also capable of increasing the accuracy of ultrasonic testing of structures made of concrete or other materials. The high-damping probe includes a transducer having a low-frequency damper attached thereto. By virtue of the above-described arrangement, the transmission wave will not oscillate for a long period of time and it is therefore possible to clearly discriminate between the transmission wave and the received wave. Since the received wave can be distinctly separated from the transmission wave, it is possible to obtain ultrasonic information such as the frequency and amplitude of the received wave. Further, it is possible to impart wide-band frequency characteristics to the probe, so that it becomes conformable to an ultrasonic testing device wherein the transmission frequencyt is variable. In addition, an ultrasonic measuring apparatus using the high-damping probe enables highly accurate measurement of the sound velocity of the shear wave, the thickness of the object and the position of an internal void.

5. 发明专利

JP2000203907A PRODUCTION OF CONCRETE 失效
公开(公告)号：JP2000203907A
公开(公告)日：2000-07-25
申请号：JP823199
申请日：1999-01-14
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： IMAI MINORU
IPC分类号： C04B18/06 , C04B22/00 , C04B22/06
摘要： PROBLEM TO BE SOLVED: To provide a process for producing concrete which does not degrade the strength of the concrete even if a large amount of an intimate mixture containing soluble silicic acid, such as fly ash and blast furnace slag, is used. SOLUTION: The bleeding water formed from cement and water or the artificial water containing the hydration products Ca(OH)2, NaOH, KOH, Mg(OH)2, etc., equal to the bleeding water is used as the water for kneading and mixing the intimate mixture containing the soluble silicic acid, such as fly ash and blast furnace slag, fine aggregate and coarse aggregate. Strength development is made further earlier and the heat of hydration is completely suppressed by increasing the amount of the intimate mixture containing the soluble silicic acid, such as fly ash, by which thermal crazing and cracking may be prevented.

6. 发明专利

JP2000120395A WATER-STOPPING STRUCTURE OF SHIELD TUNNEL AND CONSTRUCTION METHOD THEREOF 失效
公开(公告)号：JP2000120395A
公开(公告)日：2000-04-25
申请号：JP29743898
申请日：1998-10-19
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KAZAMA HIROSHI , TAMAOKI KATSUYUKI , ONOE ATSUO , IMAI MINORU , KAWAKAMI FUSAO , SEKI SHINJI
IPC分类号： E21D11/10 , E21D11/38
摘要： PROBLEM TO BE SOLVED: To provide a water-stopping structure of a shield tunnel and the construction method thereof capable of enhancing the water-stopping performance. SOLUTION: This water-stopping structure of a shield tunnel arranged with a water-stopping plate 44 on the outer circumferential side of a main side frame 41 is constituted in such a way that the water-stopping plate 44 is positioned to be perpendicular to the joining surface of self-hardening filler C. On the inner circumferential surface of the tunnel covering wall W, recessed-groove shaped crack inducible joints 58 are formed, and the crack inducible joints 58 are formed by auxiliary side frames 42.

7. 发明专利

JPH09217599A LARGE-CROSS-SECTION TUNNEL AND METHOD FOR CONSTRUCTING THE SAME 失效
公开(公告)号：JPH09217599A
公开(公告)日：1997-08-19
申请号：JP2443896
申请日：1996-02-09
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KAZAMA HIROSHI , KAWAGUCHI HIROYUKI , SEKI SHINJI , MIYAZAWA KAZUO , KAWAKAMI FUSAO , SHIGETA YASUHIKO , KUBO HIROYUKI , ARAI HISAO , TAKENAKA HISASHI , ONOE ATSUO , HOTTA HIROYUKI , AKAO YOSHIHIKO , MIYANAMI HIROSHI , IMAI MINORU , SHIMIZU KAZUTO , ISHIZAKI HIDETAKE
IPC分类号： E21D13/02
摘要： PROBLEM TO BE SOLVED: To construct a large-cross section tunnel that is high in strength, while carrying out construction work smoothly for reductions in construction period and cost. SOLUTION: After a plurality of rectangular shield tunnels 20, 20,... are constructed at predetermined intervals in advance, circular shield tunnels 15 are constructed between the adjacent rectangular shield tunnels 20, 20 to construct a tunnel structure 11 in which the circular shield tunnels 15 and planar shield tunnels 16 are arranged alternately. Thereafter, the natural ground inside the tunnel structure 11 is excavated to form internal spaces 12, 13 therein. In this case, circular shield tunnels 15A are placed at the corners of the tunnel structure 11, the diameter of the circular shield tunnel 15A being greater than the thickness of the planar shield tunnel 16 and the diameter of the circular shield tunnel 15B.

8. 发明专利

JPH07305339A IN-FROZEN-SOIL UNDERGROUND CONTINUOUS WALL AND METHOD FOR CONSTRUCTING SAME 失效
公开(公告)号：JPH07305339A
公开(公告)日：1995-11-21
申请号：JP9777194
申请日：1994-05-11
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： WATANABE TOSHIO , IMAI MINORU , KAWASAKI HIROTAKA , ODAWARA TAKURO
IPC分类号： E02D5/20
摘要： PURPOSE:To improve the quality of concrete constructed on the ground where there is a frozen soil portion, relating to an in-frozen-soil underground continuous wall and a method for constructing the same. CONSTITUTION:Concrete 13 is poured into the shell of a reinforcing cage 3 which is provided inside a channel excavated in the ground having a frozen soil portion X and which has forms 4 disposed on its sides. A heat insulating layer is formed between at least the frozen soil portion X and the forms 4 opposite to the portion X so as to effectively insulate the concrete 13 thermally from the frozen soil portion X which is at low temperatures, so as to prevent moisture in the concrete 3 from freezing and to keep the appropriate temperature required for good curing.

9. 发明专利

JPH07305338A IN-FROZEN-SOIL UNDERGROUND CONTINUOUS WALL AND METHOD FOR CONSTRUCTING SAME 失效
公开(公告)号：JPH07305338A
公开(公告)日：1995-11-21
申请号：JP9776994
申请日：1994-05-11
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： WATANABE TOSHIO , IMAI MINORU , KAWASAKI HIROTAKA , ODAWARA TAKURO
IPC分类号： E02D5/20
摘要： PURPOSE:To keep the quality of concrete good by preventing moisture in either part of the concrete cast into a shell from being frozen prior to setting. CONSTITUTION:This in-frozen-soil underground continuous wall 26, which is provided inside a channel 4 excavated in the ground 3 having a frozen soil portion 1 and which has concrete 25 poured into a shell 18 formed by a box- shaped steel sheet pile 10A, has a heat insulating material 19 provided on the outer surface of the box-shaped steel sheet pile 10A opposite to the frozen soil portion 1 of the channel 4. Even if the concrete 25 which is poured into the shell 18 formed by the box-shaped steel sheet pile 10A is employed in the ground 3 having the frozen soil portion 1, the heat insulating material 19 prevents heat transfer between the concrete and the frozen soil portion 1, thus preventing heat generated during the hardening of the concrete from being taken away by the frozen soil portion 1.

10. 发明专利

JPH0571296A SHIELD EXCAVATOR 失效
公开(公告)号：JPH0571296A
公开(公告)日：1993-03-23
申请号：JP19688191
申请日：1991-08-06
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KAWAKAMI FUSAO , SHIGETA YASUHIKO , KAZAMA HIROSHI , ISHIZAKI HIDETAKE , NISHIMURA SHINICHI , OTSUKA MASAYUKI , ARASHI TAKICHI , IMAI MINORU , KAWAI TORU
IPC分类号： E21D9/06 , E21D11/10
摘要： PURPOSE:To keep a lining material always under higher pressure than the earth pressure and water pressure of a bedrock even when a shield excavator is intermittently driven forward or there are voids in the bedrock. CONSTITUTION:A shield excavator is constituted of skin plates 11 as an outer shell, a cutter device 12 excavating a bedrock and driving jacks 13. Each tail section of the skin plates 11 is constituted of an outer cylinder 20 and an inner cylinder 21 having a smaller diameter than that of the outer cylinder 20. A concrete piston room 23 is provided between the outer cylinder 20 and the inner cylinder 21, a pushing-out piston 24 is provided to the inside of the concrete piston room 23, and the pushing-out piston 24 is so stored that it is capable of sliding back and forth by means of a pressure holding jack 25 through a spring device 70. Accordingly, even when the shield excavator is intermittently driven forward or when there are voids in the bedrock, the pressure can be sufficiently held to surely prevent pressure lowering and, at the same time, a lining material having high strength and high quality can be placed without water-leaking.

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