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71. 发明专利

JPS62266457A CORROSION INSPECTION FOR TENSION STEEL MATERIAL OF ANCHOR 失效
公开(公告)号：JPS62266457A
公开(公告)日：1987-11-19
申请号：JP10939586
申请日：1986-05-15
申请人： NITTOKU KENSETSU KK
发明人： KUROKAWA TAKESHI , TERAMOTO MANABU , YAMADA HIROSHI
IPC分类号： G01N29/04
摘要： PURPOSE:To detect corrosion of a tension steel material simply and accurately, by smoothing the exposed end face of the tension steel material of an anchor buried into the ground to perform an ultrasonic flaw detection by putting a probe on the smoothed end face. CONSTITUTION:A tension steel material 3 of an anchor is passed through a synthetic resin pipe 6, drawn from a head 7 of the anchor, and then the end face 3 thereof is covered with a cap. The cap is removed to expose the end face 3b of the steel material 3 and the end face is smoothed by grinding. A probe 13 of an ultrasonic flaw detector is put on the smoothed end face 3b to transmit an echo signal to a display 14. The display 14 shows the position of corrosion and a waveform peak proportional to the depth of the corrosion. Thus, as a flaw detection is made by putting a probe on the end face of a tension steel material, this enables inspection of the position of corrosion and the depth of corrosion accurately and quickly without digging out the ground.

72. 发明专利

JPS6238515B2 失效
公开(公告)号：JPS6238515B2
公开(公告)日：1987-08-18
申请号：JP12911280
申请日：1980-09-19
申请人： NITTOKU KENSETSU KK
发明人： TAKASHIMA NOBORU
IPC分类号： E21B10/36 , E21B10/26

73. 发明专利

JPS62182319A EXCAVATOR FOR HOLE 失效
公开(公告)号：JPS62182319A
公开(公告)日：1987-08-10
申请号：JP2396086
申请日：1986-02-07
申请人： SENDA SHOHEI , NITTOKU KENSETSU KK , NIPPON FUME CAN KK
发明人： SENDA SHOHEI , YAMAMOTO NAOKI , IWASA SEIJI
IPC分类号： E02D23/08 , E21D1/08
摘要： PURPOSE:To curtail the cost of an excavator by a method in which a rotary shaft is thrust and projected from a supporting frame, a second supporting arm is pivotally attached to both ends of a first supporting arm pivotally attached to the rotary shaft, and a bit to be driven by the rotary shaft is attached to the outer end of the arm. CONSTITUTION:A center bit 14 is attached to the lower end of a drill pipe 3 set in a well 2, and a first supporting arm 5 is pivotally attached to the upper part of the pipe 3. A second supporting arms 8 and 9 are pivotally attached to both ends of the arm 5 in a bendable manner, and outer ring bits 12 and 13 are attached to the end of the arm 5. At he beginning of excavation, the arms 5, 8, and 9 are bent and the bits 12 and 13 are contacted with the inner wall of the well 2 to excavate the inside ground of the well 2 in conjunction with the center bit 4. When the bits 12 and 13 reach the cutting edge of the well 2, the second arms 8 and 9 are opened, the excavating radius of the bits 12 and 13 is increased, thereby excavating the ground below the cutting edge of the well 2.

74. 发明专利

JPS6211127B2 失效
公开(公告)号：JPS6211127B2
公开(公告)日：1987-03-11
申请号：JP2491581
申请日：1981-02-24
申请人： NITTOKU KENSETSU KK
发明人： AOKI KAZUO
IPC分类号： E02D17/20

75. 发明专利

JPS61122327A Device of pressing-in and supporting well caisson 失效
标题翻译：压缩和支持井CAISSON的设备
公开(公告)号：JPS61122327A
公开(公告)日：1986-06-10
申请号：JP24303684
申请日：1984-11-16
申请人： Nippon Fume Can Kk , Nittoku Kensetsu Kk
发明人： IWASA SEIJI , ISOWA YOSHISUKE
IPC分类号： E02D7/16 , E02D7/20 , E02D23/08
CPC分类号： E02D7/16
摘要： PURPOSE:To perform rapid sinking and installation of a well caisson, by a method wherein the well caisson is secured to a second support beam, the second beam is engaged with the upper surface of a first support beam to support the well caisson, and the second support beam is disposed to the under surface of the first support beam to press in the well caisson. CONSTITUTION:The upper end of a well caisson W is secured to the undersurface of a second support beam 10, the second support beam 10 is engaged with the upper surface of the first support beam 7, and this causes supporting of the well caisson W to a support frame 1. After, with this, a ground in the vicinity of the lower end of the well caisson W is excavated down to a given depth, the second support beam 10 is removed from the well caisson W. After the first support beam 7 is raised by means of a hydraulic jack 8, the second support beam 10 is secured to the well caisson W again, and the first support beam 7 is lowered with the aid of the hydraulic jack 8 to press the well caisson W into a ground. This enables to perform supporting and pressing-in of the well caisson W only through engagement of the second support beam with the first support beam, and permits rapid sinking and installation of the well caisson W.
摘要翻译：目的：为了快速下沉和安装井筒，通过其中井底固定到第二支撑梁的方法，第二梁与第一支撑梁的上表面接合以支撑井下沉井，并且第二支撑梁设置在第一支撑梁的下表面上以在井下沉压。构成：井筒W的上端被固定到第二支撑梁10的下表面，第二支撑梁10与第一支撑梁7的上表面接合，并且这导致井筒W的支撑支撑框架1.此后，将井下水W的下端附近的地面挖掘到给定的深度，将第二支撑梁10从井筒W卸下。在第一支撑梁 7通过液压千斤顶8升高，第二支撑梁10再次固定到井下W，借助于液压千斤顶8降低第一支撑梁7，以将井底W压入地面。这使得仅通过第二支撑梁与第一支撑梁的接合来执行井筒W的支撑和压入，并允许井筒W的快速下沉和安装。

76. 发明专利

JPS6153913A Device and method of controlling flow rate-pressure for pouring of group 失效
标题翻译：控制流量流量的装置和方法
公开(公告)号：JPS6153913A
公开(公告)日：1986-03-18
申请号：JP17725984
申请日：1984-08-24
申请人： Furonto Eng Kk , Nittoku Kensetsu Kk
发明人： HASHIMOTO TOSHIKUNI , ISOWA YOSHIHIRO
IPC分类号： E02D3/12
CPC分类号： E02D3/12
摘要： PURPOSE:To prevent the occurrence of choking with cement, by a method wherein a control device for the number of revolutions of a pump is provided, and only a resistance means of a flow passage is located on a return passage, branched from a pouring route, running from a pouring pump to a ground to be poured, and returning to a grout source. CONSTITUTION:When, with a pouring pump 2 started, pouring of grout into the ground is started, the pump is driven until the number of revolutions is increased to a specified value by means of which a flow rate is increased to a given value till a time t1. When a ground becomes unacceptable and a pressure is gradually increased to a set value, a pressure is prevented against an increase as the number of revolutions of the pump 2 is decreased. By gradually decreasing a pouring amount, a pouring amount is decreased and a pressure is gradually decreased despite of a ground still having a room enough to allow pouring of the grout, but a nozzle 21 of a return passage 6 forms resistance to prevent decrease of a pouring pressure. Further, the number of revolutions of the pump 2 is decreased as a set pressure is regulated, and even if a pouring amount is finally decreased to zero at a time t3, return is continued for about 30min till a time t4, at which pouring is completed, to keep a pouring pressure at a specified value.
摘要翻译：目的：为了防止水泥发生堵塞，通过一种方法，其中设置有用于转数的控制装置，并且只有流路的阻力装置位于从倾倒路径分支的返回通道上从倾倒泵运行到地面倾倒，并返回到灌浆源。构成：当浇注泵2启动时，开始将泥浆浇注到地面中，泵被驱动直到转数增加到指定值，通过该值将流量增加到给定值直到时间t1。当地面变得不可接受并且压力逐渐增加到设定值时，随着泵2的转数减小，防止压力增加。通过逐渐减少倾倒量，尽管地面仍具有足够的空间以允许倾倒灌浆，但是倾倒量减少并且压力逐渐降低，但是返回通道6的喷嘴21形成阻力以防止倾倒压力。此外，随着设定压力的调节，泵2的转数降低，即使在时刻t3将倾倒量最终减小到零，返回持续约30分钟直到时刻t4 完成后，将浇注压力保持在指定值。

77. 发明专利

JPS615120A EARTH ANCHORING WORK 失效
公开(公告)号：JPS615120A
公开(公告)日：1986-01-10
申请号：JP12384884
申请日：1984-06-18
申请人： TAISEI CORP , NITTOKU KENSETSU KK , SEIWA KIKO KK
发明人： NAITOU SEIJI , HASHIMOTO AKIRA , IZUMI MASAO
IPC分类号： E02D5/80
摘要： PURPOSE:To raise the bearing capacity of an earth anchor by a method in which an anchor incorporated with a tension member is penetrated into a pit, grout is injected to fix the anchor, tension is given to the anchor, and the grout is packed into the cracks of the fixed portion. CONSTITUTION:An anchor in which grout hoses 3 and 5 are attached to the periphery of a sheath 1 incorporated with a tension member 2 is penetrated into an anchor hole 7. A grout A for fixation is injected through the hose 3 and hardened, and the member 2 is tensed to give it a tension. In case where cracks B develop in the hardened grout A, a grout to be packed into the cracks B is sent under pressures and packed into the cracks B.

78. 发明专利

JPS615119A STRUCTURE OF EARTH ANCHOR 失效
公开(公告)号：JPS615119A
公开(公告)日：1986-01-10
申请号：JP12384784
申请日：1984-06-18
申请人： TAISEI CORP , NITTOKU KENSETSU KK , SEIWA KIKO KK
发明人： NAITOU SEIJI , HASHIMOTO AKIRA , IZUMI MASAO
IPC分类号： E02D5/80
摘要： PURPOSE:To raise the corrosion resistance and durability of an earth anchor by a method in which an expansible material is confined in a corrugated sheath filled with a grout, and the tip portion of the corrugated portion is closed with a thermoplastic cap. CONSTITUTION:A tension member 2 is inserted into a sheath 1, and a water stopper 4, e.g., cement mortar, etc., is placed in the boundary between the fixed long portion and the free long portion in the sheath 1. A grout 5 is injected into the space of the corrugated portion 11, and a cap 3 confined with an expansible material 6 is attached and fixed to the tip portion of the corrugated portion 11 by heating the skirt of the cap 3 for shrinkage. The sheath 1 is inserted into an anchor hole 7, and grout 8 is injected into the hole 7 to fix the anchor. Since the material 6 is expanded to compensate for the shrinkage of the grout 5, the formation of space in the corrugated portion 11 can be prevented.

79. 发明专利

JPS6043925B2 JPS6043925B2 - 失效
公开(公告)号：JPS6043925B2
公开(公告)日：1985-10-01
申请号：JP8422677
申请日：1977-07-15
申请人： Nittoku Kensetsu Kk
发明人： AOKI KAZUO , HARA KINJI
IPC分类号： A01C21/00 , A01C15/00 , C05G3/00 , C05G5/00 , E02D17/20

80. 发明专利

JPS60148918A METHOD OF BUILDING SYNTHESIZED PILE 失效
公开(公告)号：JPS60148918A
公开(公告)日：1985-08-06
申请号：JP488384
申请日：1984-01-17
申请人： NITTOKU KENSETSU KK
发明人： YAMAMOTO NAOKI , NISHI SUMIO
IPC分类号： E02D3/12 , E02D5/24 , E02D5/36 , E02D5/46 , E02D5/50
摘要： PURPOSE:To form a synthesized pile, which has uniform quality and high support force, by means of a small amount of an improving agent, by a method wherein a powdered granular improving agent is injected in a soft ground, and an existing pile is driven in an improved pillar body formed by agitating and mixing the improving agent and earth. CONSTITUTION:As a hollow agitating shaft 3 is rotated, a soft ground A is excavated down to a given depth by means of agitating blades 12 and 13. With the agitating blade 3 rotated, a powdered granular ground improving agent is conveyed through the agitating shaft 3, and as the improving agent is injected to agitate and mix the improving agent with original position earth B, the agitating shaft 3 is pulled off to form an improved pillar body C. Before the pillar body C is cured, an existing pile D is driven in the pillar body C to form a synthesized pile.

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