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首页> 外文会议>International conference on ground control in mining >A Liquid Settlement System for Measuring Roof Sag During Development Mining -A Comparison Between Place Change Mining and a Miner-Bolter
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A Liquid Settlement System for Measuring Roof Sag During Development Mining -A Comparison Between Place Change Mining and a Miner-Bolter

机译：用于在开发采矿期间测量屋面凹陷的液体沉降系统-位置变更采矿和矿用螺栓的比较

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摘要

A novel liquid settlement system (LSS) was installed in advance of mining at a western United States (U.S.) longwall mine to measure total roof sag from the time of cutting to days after mining during gateroad development. The system was used to compare differences in roof sag between conventional place-change mining using a Joy continuous miner and a Fletcher roof bolter and mining using a miner-bolter. The LSS was installed with an intrinsically safe, miniature data acquisition system (MIDAS) to record roof response at four locations in the same gateroad. The system utilized pressure transducers to measure roof sag by the principle of falling head (fluid pressure) in fluid-filled tubes installed in the immediate roof. Details of the LSS design, installation, data collection, post-processing, and future applications are discussed.
机译：在美国西部（美国）长壁矿山开采之前，安装了一种新型的液体沉降系统（LSS），以测量从闸门开发到开采后的几天到开采后几天的总下垂度。该系统用于比较使用Joy连续采矿机和Fletcher屋顶锚杆机的常规换矿采矿与使用矿机锚杆的采矿之间的凹陷松弛差异。 LSS安装了本质安全的微型数据采集系统（MIDAS），以记录同一闸口中四个位置的车顶响应。该系统利用降压原理（压力）在直接安装在屋顶上的充满流体的管道中，利用压力传感器来测量屋顶的下垂。讨论了LSS设计，安装，数据收集，后处理和将来的应用程序的详细信息。

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