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公开(公告)号：US20150174789A1
公开(公告)日：2015-06-25
申请号：US14634500
申请日：2015-02-27
CPC分类号： B28D1/088 , B23D57/0007 , E21B7/068 , E21C25/54 , E21C25/56 , E21D1/06 , E21D9/1053
摘要： The method for wire saw excavation provides a significant savings in time, effort, and expense in the cutting of a core of material from a solid substrate such as rock or concrete. A single downhole is formed, and a robotic excavator then forms a continuous, closed loop base passage at the distal end of the downhole to define the periphery of the core to be cut. When the base passage has been completed, the robotic excavator is removed and two subsurface guide pulleys are placed in the bottom of the downhole. A wire saw is passed from a first surface pulley around the first and second subsurface pulleys and back to a second surface pulley. The surface pulleys are advanced along the predetermined periphery of the core at the same rate as the subsurface pulleys, so that the saw simultaneously cuts the periphery and the bottom of the core.
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公开(公告)号：US09144921B2
公开(公告)日：2015-09-29
申请号：US14634500
申请日：2015-02-27
CPC分类号： B28D1/088 , B23D57/0007 , E21B7/068 , E21C25/54 , E21C25/56 , E21D1/06 , E21D9/1053
摘要： The method for wire saw excavation provides a significant savings in time, effort, and expense in the cutting of a core of material from a solid substrate such as rock or concrete. A single downhole is formed, and a robotic excavator then forms a continuous, closed loop base passage at the distal end of the downhole to define the periphery of the core to be cut. When the base passage has been completed, the robotic excavator is removed and two subsurface guide pulleys are placed in the bottom of the downhole. A wire saw is passed from a first surface pulley around the first and second subsurface pulleys and back to a second surface pulley. The surface pulleys are advanced along the predetermined periphery of the core at the same rate as the subsurface pulleys, so that the saw simultaneously cuts the periphery and the bottom of the core.
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公开(公告)号：US09068454B1
公开(公告)日：2015-06-30
申请号：US14288298
申请日：2014-05-27
CPC分类号： B28D1/088 , B23D57/0007 , E21B7/068 , E21C25/54 , E21C25/56 , E21D1/06 , E21D9/1053
摘要： The method for wire saw excavation provides a significant savings in time, effort, and expense in the cutting of a core of material from a solid substrate such as rock or concrete. A single downhole is formed, and a robotic excavator then forms a continuous, closed loop base passage at the distal end of the downhole to define the periphery of the core to be cut. When the base passage has been completed, the robotic excavator is removed and two subsurface guide pulleys are placed in the bottom of the downhole. A wire saw is passed from a first surface pulley around the first and second subsurface pulleys and back to a second surface pulley. The surface pulleys are advanced along the predetermined periphery of the core at the same rate as the subsurface pulleys, so that the saw simultaneously cuts the periphery and the bottom of the core.
摘要翻译： 线锯开挖的方法在从诸如岩石或混凝土的固体基材切割材料芯时节省了大量的时间，精力和费用。 形成单个井下，然后机器人挖掘机在井下的远端形成连续的闭环基础通道，以限定待切割的芯的周边。 当底座通道完成后，机器人挖掘机被拆除，两个地下导向滑轮放置在井下底部。 线锯从第一表面皮带轮绕第一和第二表面下滑轮通过，并返回到第二表面滑轮。 表面滑轮沿着芯的预定周边以与次表面滑轮相同的速率前进，使得锯同时切割芯的周边和底部。
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