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    • 1. 发明专利
    • Method for treating excavated soil in rheological foam shield tunneling work
    • 用于处理流体动力学泡沫隧道工程中的开挖土壤的方法
    • JP2012026116A
    • 2012-02-09
    • JP2010163862
    • 2010-07-21
    • Keihin Soil Co LtdOhbayashi Corp京浜ソイル株式会社株式会社大林組
    • KIMURA TSUTOMUTANAKA YOSHIHIROTSUJI TOSHINORINAGAI FUMIHIRO
    • E21D9/12B01J20/04B01J20/06B01J20/12B01J20/14B01J20/18B01J20/26C02F11/00C09K17/02C09K17/06C09K17/08C09K17/22C09K103/00E21D9/06
    • PROBLEM TO BE SOLVED: To efficiently break foams of excavated soil produced in rheological foam shield tunneling work, without imposing a load on an environment.SOLUTION: In a method for treating excavated soil in rheological foam shield tunneling work, firstly, the excavated soil is discharged from a chamber 6 of a shield machine 5 via a screw conveyor 1 connected to the chamber in the state of communicating with it (step 101), and subsequently sent into a line mixer 2 that is disposed on the discharge side of the screw conveyor. After that, a water absorbing material charged into the line mixer 2 is added to the excavated soil to turn it into treatment object soil (step 102), and the treatment object soil is agitated and mixed by the line mixer 2 to uniformly disperse the water absorbing material in the treatment object soil (step 103). Next, the soil after the completion of water absorbing treatment is carried out to the rear of the shield machine 5 by a belt conveyor 4 that is displaced on the downstream side of the line mixer 2 (step 104).
    • 要解决的问题:有效地破坏在流变泡沫屏蔽隧道工作中产生的挖掘土壤的泡沫,而不会对环境造成负担。 解决方案:在流变泡沫屏蔽隧道工程中处理挖掘土的一种方法中,首先,挖掘的土壤通过连接到室的螺旋输送机1从屏蔽机5的室6排出,处于与 (步骤101),并随后送入配置在螺旋输送机排出侧的管线混合器2。 之后,将加入到线混合器2中的吸水材料添加到挖掘的土壤中,将其转化为处理对象土壤(步骤102),并且通过管线混合器2将处理对象土壤搅拌混合以均匀地分散水 在处理对象土壤中吸收材料(步骤103)。 接下来,通过在线路混合器2的下游侧移位的带式输送机4,在屏蔽机5的后方进行吸水处理完成后的土壤(步骤104)。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • JOINING STRUCTURE
    • JP2000213289A
    • 2000-08-02
    • JP1767799
    • 1999-01-26
    • OHBAYASHI CORPISHIKAWAJIMA KENZAI KOGYO KK
    • TAKEDA KUNIOKITAOKA TAKASHITSUJI TOSHINORISOMEYA HIROKIASANO HIROSUKE
    • E21D11/04
    • PROBLEM TO BE SOLVED: To improve the resistance against the shearing force of a joined part composed by joining members with each other by engaging a joining bar with a joining piece without increasing the cost. SOLUTION: A joining piece 11 is provided on one segment S, and a joining bar 12 is provided on the other segment S. The joining piece 11 comprises a tapered sleeve 13, a plurality of wedges 14 arranged in an annular with inserting and fixing holes H of the joining bars 12, and fitted in the sleeve 13, and an elastic member 15 to urge the wedges 14 to the tip side of small diameter of the sleeve 13 so that the inserting and fixing holes H are shrunk. A female shear reinforcement member 21 having a fitting ring 24 with a fitting hole 30 therein is fixed to a tip part of the joining piece 11. A cylindrical male shear reinforcement member 27 is fitted to the joining bar 12. When the joining bar 12 is inserted in the joining piece 11, the male shear reinforcement member 27 is fitted to the fitting hole 30 in the fitting ring 24 of the female shear reinforcement member 21 to improve the resistance against the shearing force of a joined part.
    • 9. 发明专利
    • WATERPROOF SEGMENT FOR SHIELD TUNNEL AND EXECUTION THEREOF
    • JPH10227197A
    • 1998-08-25
    • JP4840497
    • 1997-02-17
    • OHBAYASHI CORP
    • TAKEDA KUNIONAKANO AKIHIKOTSUJI TOSHINORI
    • E21D11/04E21D11/08E21D11/38
    • PROBLEM TO BE SOLVED: To shorten a construction period while sufficient waterproofness is secured by attaching a waterproof sheet on the inner face of a segment body so that the edge part of the sheet is protruded in a notch formed in the inner face side edge part of the segment body. SOLUTION: A notch 3 is formed along the peripheral edge of a reinforced concrete-made segment body 2, and a waterproof sheet 4 formed by a fiber reinforced sheet is attached on the inner face of the segment 2 so that it is protruded in the notch 3 to constitute a waterproof segment for a shield tunnel 1. The waterproof segments 1, 1 are adjacently disposed at a prescribed position of the inside of tunnel ground. When the notch 3 is filled with a filler, which is hardened in the state where the edge part of the waterproof sheet 4 is pushed in the notch 3, the waterproof sheets 4, 4 attached to the two adjacent segment bodies 2, 2 are integrally jointed through the filler in the notch 3 to block a gap between the segment bodies 2, 2. Thus, secondary lining is unnecessitated, waterproof lining of high watertightness is executed on the inner face of the segment 1, and a construction period can be significantly shortened.