Abstract:The pneumatic cylinder mobile support system serves to protect the near-face area from rocks being ejected into the worked-out chamber and prevents the roof from collapsing when miming to the dip in thick steep beds using pillars, with the collapse or self-filling of mined-out spaces. At the first stage in support system development, laboratory tests were done to study the following aspects:the interaction between the support system and the lateral and overhead rocks; investigate and develop methods for suppor… Show more
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