-
-
-
公开(公告)号：JP2017125309A
公开(公告)日：2017-07-20
申请号：JP2016003830
申请日：2016-01-12
摘要： 【課題】都心等における利用にも耐えられるように、振動と騒音と粉塵の発生をより低減した地中杭破砕方法を提案すること等を目的とする。 【解決手段】杭頭が露出された状態の地中杭に、地中杭の長さ方向に沿って杭頭から破砕薬装填孔を穿孔する工程と、杭頭から、破砕薬装填孔に、破砕薬とセメントタンパーとを交互に、破砕薬が一定の間隔となるように、地中杭の長さ方向に沿って多段に挿入する工程と、多段に挿入された破砕薬を、杭頭から地中杭の底部に向けて順次に、0.025秒〜0.5秒の範囲の一定時間毎に、着火して破砕する工程と、を有する地中杭破砕方法とする。 【選択図】図1
-
-
-
公开(公告)号：JP2003094236A
公开(公告)日：2003-04-03
申请号：JP2001283684
申请日：2001-09-18
申请人： TAIYU CO LTD
发明人： NOMURA YUKO
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for cutting-off an underground small diameter pipe, improved in the safety and efficiency of the cutting-off work and reduced in the cutting-off cost by inserting a cutter into the inside of the small diameter pipe to carry out the cutting-off and carrying out the cutting-off of the underground small diameter pipe from above the ground. SOLUTION: An upper part of a cutter spindle 4 to be inserted inside the underground small diameter pipe A is held by a drive mechanism 6 for rotating the cutter spindle 4, the drive mechanism 6 being mounted on the upper end of the small diameter pipe A. The cutter spindle 4 is provided with a cutter 8, which rotates together with the cutter spindle 4, at its lower end part, and a reaction member 9 which is located above the cutter 8 and pushes the cutter 8 against the inside peripheral surface of the underground small diameter pipe A by abutting upon the inside peripheral surface of the underground small diameter pipe A. The drive mechanism 6 is provided with means for allowing the cutter spindle 4 to swing. The underground small diameter pipe A is cut-off by the rotation and revolution of the cutter 8.
-
7.发明专利
公开(公告)号：JPH10168880A
公开(公告)日：1998-06-23
申请号：JP33354896
申请日：1996-12-13
申请人： OHBAYASHI CORP
发明人： KANAZAWA MINORU
IPC分类号： E02D13/08
摘要： PROBLEM TO BE SOLVED: To surely remove an obstacle to construction regardless of depth. SOLUTION: This removing device comprises a hollow cylindrical casing 12, a tip cap provided on the tip side of the casing 12, and a mechanism 18 provided in the inside of the casing 12 for carrying and discharging back fill sediment. The cap is formed like a pointed cone, and provided with cutting edge parts extended from the center radially, the space between the cutting edges serving as a discharge port for the sediment 16. The mechanism 18 includes a carrying screw 18a disposed in the vicinity of the tip cap 14, a driving device 18b disposed on the uper side of the screw 18a, and a discharge chute 18c installed below the screw 18 a. By the mechanism 18, sediment 16 is supplied through a supply port 12b into the casing 12, the sediment is transferred to the discharge chute 18c side by the screw 18a, and then at the time of pulling out the casing 12, the sediment is released to the outside through the chute 18c and the discharge port.
-
公开(公告)号：JPS62117919A
公开(公告)日：1987-05-29
申请号：JP25821085
申请日：1985-11-18
申请人： Nissei Kensetsu Kk
发明人： OHASHI SEIJIRO , HIRAI TAKAYUKI
IPC分类号： E02D13/08
摘要： PURPOSE: To completely prevent the breakage of a pipe buried under the ground by a method in which when the tip of a part comes into contact with a buried pipe to become a closed circuit, a breaker is operated on signals from a sensor to stop the operation of a working machine.
CONSTITUTION: The top 13 of a member 12, e.g., a steel sheet pile, advancing by a working machine 11 from the ground's surface to underground is contacted with a buried pipe 1 having an exposed portion as a fixed detecting end 3 on the ground's surface. When the tip 13 as a contact detection end 4 with a signal sensor 2 comes into contact with the pipe 1 to form a closed loop, a breaker 5 is operated on signals from the sensor 2 and the power source 15 of the driving source 14 of the working machine 11 is interrupted to stop the operation of the machine 11. Since the working machine is stopped in this way, the breakage of the pipe buried under the ground can be completely prevented.
COPYRIGHT: (C)1987,JPO&Japio摘要翻译： 目的：为了完全防止埋在地下的管道的破裂，其中当一部分的尖端与埋管接触以成为闭路时，断路器根据来自传感器的信号进行操作以停止 一台作业机的操作。 构成：将工作机械11从地面进入地下的构件12（例如钢板桩）的顶部13与埋设管1接触，该埋管1具有作为固定检测端3的露出部分的地面 。 当作为具有信号传感器2的接触检测端4的尖端13与管1接触以形成闭环时，断路器5对来自传感器2和驱动源14的电源15的信号进行操作 工作机11被中断以停止机器11的操作。由于以这种方式停止工作机器，所以可以完全防止埋在地下的管道的断裂。
-
-
-
-
-
-
-
-
搜索结果
73 条记录 (耗时 0.014 秒)
