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    • 1. 发明专利
    • Method for evaluating workability of concrete
    • 评估混凝土的可行性的方法
    • JP2004360199A
    • 2004-12-24
    • JP2003156320
    • 2003-06-02
    • Shimizu Corp清水建設株式会社
    • TANAKA HIROICHIKIMURA KATSUHIKOKURITA MORIAKIURANO SHINJI
    • E04G21/02
    • PROBLEM TO BE SOLVED: To evaluate workability of concrete by using filling properties of high-fluidity concrete capable of being constructed without compaction.
      SOLUTION: A reduced model using a homothetic ratio set in consideration of a structure and construction conditions is made by confirming the structure and construction conditions of a concrete structure to be constructed. A slump flow value of the concrete is changed so that a prescribed flow slope can be obtained, through the use of a flow slope of the concrete which is placed as an index into a flow-reduced model; a concrete placing experiment is performed so that the performance of the filling properties of the high-fluidity concrete can be confirmed; and the workability of the concrete structure is evaluated.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:通过使用能够在没有压实的情况下构建的高流动性混凝土的填充性能来评估混凝土的可加工性。 解决方案:通过确定要构建的混凝土结构的结构和施工条件,对考虑到结构和施工条件设置的均匀比率进行了简化模型的制作。 改变混凝土的坍落度流动值,使得可以通过使用以流量减小模型作为指标放置的混凝土的流动坡度来获得规定的流动坡度; 进行混凝土浇筑实验,以确认高流动性混凝土的填充性能的性能; 评估混凝土结构的可加工性。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • Joint structure and construction method for pile head part
    • 桩头结构与构造方法
    • JP2008111257A
    • 2008-05-15
    • JP2006294182
    • 2006-10-30
    • Shimizu CorpSumitomo Metal Ind Ltd住友金属工業株式会社清水建設株式会社
    • ISODA KAZUHIKOOTSUKI AKIRAKIMURA KATSUHIKOTANAKA HIROMASAKOBAYASHI YOICHIMORI NAOTO
    • E02D27/12E02D5/24
    • PROBLEM TO BE SOLVED: To improve quality of a joint structure, reduce cost of construction work by reducing the labor and processes required by welding work to be performed at site, and improve construction property.
      SOLUTION: This joint structure 1 of the pile head part 2A is provided with a diameter enlarged member 5 composed of a receiving member 3 fixed to an outer peripheral part of the pile head part 2A, an annular elastic member 4 arranged on an outer side of the receiving member 3 to surround the pile head part 2A, an outer steel pipe part 7 surrounding the pile head part 2A, and a horizontal diaphragm 8 fixed to a lower end 7a of the outer steel pipe part 7 and formed to allow the pile head part 2A to be inserted into it and put on the receiving member 3 and hardener 6 filled between the diameter enlarged member 5 and the pile head part 2A. The annular elastic member 4 is arranged to come into contact with excavated batholith 9 around the pile head part 2A and a lower face of the diameter enlarged member 5 to prevent the hardener 6 to be filled from flowing out.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提高接头结构的质量,通过减少在现场进行的焊接工作所需的劳动力和工序来降低施工工作成本,并提高施工性能。 解决方案:桩头部分2A的接头结构1设置有直径扩大部件5,该直径扩大部件5由固定在绒毛头部分2A的外周部分上的接收部件3,一个环形弹性部件4 接收构件3的外侧围绕桩头部2A,围绕桩头部2A的外侧钢管部7和固定在外侧钢管部7的下端7a的水平隔膜8, 插入其中的绒头头部2A放置在容纳构件3上,填充在直径扩大构件5和桩头部2A之间的硬化剂6。 环状弹性部件4配置成与桩头部分2A周围的挖掘的基体9和直径扩大部件5的下表面接触,以防止硬化剂6被填充而流出。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Concrete chipping device
    • 混凝土搅拌装置
    • JP2007154440A
    • 2007-06-21
    • JP2005347576
    • 2005-12-01
    • Shimizu Corp清水建設株式会社
    • KIMURA KATSUHIKOKIMURA HIROSHIURANO SHINJITAKURA TAKASHIMURAKAMI KAZUOTAKAHASHI KEIICHI
    • E04G23/08B02C19/00B02C19/18E21C37/18
    • PROBLEM TO BE SOLVED: To achieve efficient chipping work by preventing a leakage of insulating water for filling a part for positively causing concrete breaking by high-voltage pulse electric discharge in a method of chipping the surface of a concrete structure.
      SOLUTION: A cylindrical container installed on the concrete surface interposing a seal member between the lower end peripheral edge and the concrete surface is filled with the insulating water with viscosity imparted by adding a thickener so that a J-funnel flow-down time is 5-15 seconds. Discharge electrodes are erected at a predetermined space, and high-voltage pulse applied to the discharge electrodes is propagated from the concrete surface to the interior to chip the concrete surface between the discharge electrodes in a thin layer state.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了通过防止在将混凝土结构的表面破碎的方法中通过高压脉冲放电来积极引起混凝土破坏的部分的绝缘水的泄漏来实现有效的切屑作业。 解决方案:安装在混凝土表面上的圆柱形容器,在下端周边边缘和混凝土表面之间插入密封构件,填充有绝缘水,粘度通过添加增稠剂赋予,使得J型漏斗流失时间 是5-15秒。 放电电极在预定的空间竖立,并且施加到放电电极的高电压脉冲从混凝土表面传播到内部,以薄层状态对放电电极之间的混凝土表面进行切割。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Method for installing tie bar in arched earth retaining of vertical shaft
    • 用于安装垂直轴的地球保持的方法
    • JP2003301687A
    • 2003-10-24
    • JP2002104138
    • 2002-04-05
    • Shimizu Corp清水建設株式会社
    • KIMURA KATSUHIKOMAE KOICHI
    • E21D5/016E21D5/04
    • PROBLEM TO BE SOLVED: To easily introduce prestress with a desired value without requiring a large-sized machine.
      SOLUTION: An earth retaining wall of a vertical shaft, which is provided to oppose earth pressure or water pressure from surrounding natural ground, is divided into a plurality of wall parts along a circumferential direction; the respective wall parts are formed in such an arched shape as to overhang to an outer peripheral side in a plan view; corner parts 113 are formed between the arched wall parts; and the adjacent corner pats 113 are tightly tied by a tie bar 1. When installed between the corner parts 113, the tie bar 1 is installed in a state of being heated up to a prescribed temperature by a sheet heater 5. After installation, when the temperature of the tie bar 1 falls up to an ordinary temperature, the tie bar 1 is contracted by a temperature difference; consequently, even if a very strong tensile force is not introduced in the installation, the play of a joint of the tie bar 1 and the like can be absorbed; and a prestress of a relatively high desired value is introduced.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:在不需要大型机器的情况下,容易地将预应力引入所需的值。 解决方案:垂直轴的挡土墙被设置成与周围的自然地面的土压或水压相对应,沿圆周方向分成多个壁部分; 相应的壁部分形成为在平面图中突出到外周侧的弓形形状; 角部113形成在拱形壁部之间; 并且相邻的拐角部113被连杆1紧紧地捆扎。当安装在角部113之间时,连接杆1通过片状加热器5被安装到被加热到规定温度的状态。安装后,当 拉杆1的温度下降到常温,拉杆1收缩温度差; 因此,即使在安装中没有引入非常强的拉力,也可以吸收连杆1的接头的游隙; 并引入了较高期望值的预应力。 版权所有(C)2004,JPO
    • 7. 发明专利
    • Concrete chipping device
    • 混凝土搅拌装置
    • JP2007154442A
    • 2007-06-21
    • JP2005347578
    • 2005-12-01
    • Kumamoto UnivShimizu Corp国立大学法人 熊本大学清水建設株式会社
    • KIMURA KATSUHIKOKIMURA HIROSHIURANO SHINJITAKURA TAKASHIMURAKAMI KAZUOAKIYAMA SHUSUKENAMIHIRA TAKAO
    • E04G23/08B02C19/00B02C19/18E21C37/18
    • PROBLEM TO BE SOLVED: To prevent a container from being damaged by shock wave generated in breaking concrete by high-voltage pulse electric discharge in a concrete chipping device for chipping a concrete surface.
      SOLUTION: A sponge-like body 30 with a predetermined thickness formed with open cells is stored in the cylindrical container 11 installed on the concrete surface 1, so as to come in close contact with the concrete surface 1. The cylindrical container 11 is filled with insulating water 12 so that the sponge-like body 30 is in a water absorbing state. Discharge electrodes 13+, 13- are erected penetrating the sponge-like body 30 at a predetermined space so that terminal tips 13a contact the concrete surface 1. High-voltage pulse applied to the discharge electrode 13+ is propagated from the concrete surface 1 to the interior to chip the concrete surface 1 between the discharge electrodes 13+, 13- in a thin layer state.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了防止在用于破碎混凝土表面的混凝土切屑装置中通过高压脉冲放电在破碎的混凝土中产生的冲击波损坏容器。 解决方案:形成有开孔的具有预定厚度的海绵状体30被储存在安装在混凝土表面1上的圆筒形容器11中,以便与混凝土表面1紧密接触。圆筒形容器11 填充有绝缘水12,使得海绵状体30处于吸水状态。 放电电极13+,13-被竖立成以预定的空间穿透海绵状体30,使得端子尖端13a接触混凝土表面1.施加到放电电极13+的高电压脉冲从混凝土表面1传播到 内部以薄层状态在放电电极13+,13-之间切割混凝土表面1。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Concrete crushing apparatus with high voltage pulse discharge
    • 具有高压脉冲放电的混凝土搅拌装置
    • JP2008055393A
    • 2008-03-13
    • JP2006238750
    • 2006-09-04
    • Aitakku KkHitachi Constr Mach Co LtdShimizu Corpアイタック株式会社日立建機株式会社清水建設株式会社
    • KIMURA KATSUHIKOTAKURA TAKASHIMURAKAMI KAZUOKIMURA HIROSHIIKUTA MASAHARUKOMATA TAKAYUKIUEMURA KENSUKE
    • B02C19/00E21C37/18
    • PROBLEM TO BE SOLVED: To provide an apparatus efficiently crushing concrete surfaces over a given range with high voltage pulse discharge.
      SOLUTION: An insulation fluid like water is filled in a bottomless cylindrical vessel 11 placed on the concrete surface 1, and a positive electrode terminal 13+ and a negative electrode terminal 13- of discharge electrodes are erected in the cylindrical vessel 11 with a given space. High voltage pulse discharge applied between the positive electrode terminal 13+ and a negative electrode terminal 13- is propagated from the concrete surface 1 into the inside for crushing the concrete surface 1 between the terminals into thin layers. At this time, the cylindrical vessel 11 is composed of double-structure consisting of a concentric inner cylinder 11A and an outer cylinder 11B connected with a partition wall 15. An expandable tube 21 and a seal member 22 elastically deformable between the concrete surface 1 and tube 21 according to an expanding state of the tube 21 and sealing a gap between the cylindrical vessel 11 and concrete surface 1, are contained in a double containing space 16 with an opened lower end, demarcated with the lower parts of the inner cylinder 11A and outer cylinder 11B, and the partition wall 15.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种设备,用高压脉冲放电有效地在给定范围内破碎混凝土表面。 解决方案:将诸如水的绝缘流体填充在放置在混凝土表面1上的无底圆柱形容器11中,并且放电电极的正极端子13+和负极端子13-竖立在圆柱形容器11中, 给定的空间。 在正极端子13+和负极端子13-之间施加的高压脉冲放电从混凝土表面1传播到内部,用于将端子之间的混凝土表面1破碎成薄层。 此时,圆柱形容器11由与分隔壁15连接的同心内筒11A和外筒11B组成的双重结构构成。可膨胀管21和密封构件22可在混凝土表面1和 根据管21的膨胀状态并密封圆柱形容器11和混凝土表面1之间的间隙的管21被容纳在具有敞开的下端的双重容纳空间16中,与内筒11A的下部分界定 外筒11B和分隔壁15.版权所有(C)2008,JPO&INPIT