Abstract : The coal wall grouting reinforcement technique is an effective measure to prevent and control rib spalling, and its key procedure is the selection of grouting quantity.

摘要 煤壁注浆加固技术是防治煤壁片帮的有效措施，其关键环节在于注浆量的选择。

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Surface is smooth and flat on the surface of tray surface, it can meet transportation of all goods, rib reinforcement is installed on the lower surface.

托盘板上表面平整光滑，可满足各种货物的运输，下表面设有加强筋。

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The sunken guide-slot forms rib reinforcement at the backside of the base-plate and the base-plate is hard to deform.

下凹的导槽在底板背面形成加强筋，底板 不易变形；

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