![]() ![]() In addition, the radar waves adequately penetrate through rain, dust and smoke to give reliable measurements, twenty-four hours a day. The advantage of radar over other monitoring techniques is that it provides full area coverage without the need for mounted reflectors or equipment on the wall. The effects of atmospheric variations and spurious signals can be reduced via signal processing means. Using differential radar interferometry, the system can detect deformation movements of a rough wall with sub-millimeter accuracy, and with high spatial and temporal resolution. ![]() The slope stability radar has been developed to remotely scan a rock slope to continuously monitor the spatial deformation of the face. A common technique to determine slope stability is to monitor the small precursory movements, which occur prior to collapse. This is especially true when the mine workings are close to a potentially unstable slope. Longstaff, DennisÄetermining slope stability in a mining operation is an important task. Slope stability radar for monitoring mine walls Mobile mold and concrete-foam generator form sections of wall in place. Wall helps support roof and divides passage into two conduits needed for ventilation of coal face. Proposed semiautomatic system forms concrete-foam wall along middle of coal- mine passage. ![]()
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