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1. 发明授权

US5385504A Permanent ventilation seal 失效
标题翻译：永久通风密封
公开(公告)号：US5385504A
公开(公告)日：1995-01-31
申请号：US113860
申请日：1993-08-30
申请人： David A. Hussey , Fred Stafford, III
发明人： David A. Hussey , Fred Stafford, III
IPC分类号： E21F17/103 , E21F1/00 , E02D3/02 , E21F3/00
CPC分类号： E21F17/103
摘要： A mine seal is provided in which two walls are constructed across the mine entry. One of the walls is constructed in layers. After a lower portion of the layered wall is erected, a first layer of gravel is provided between the walls. The gravel is then saturated with a binding material such as a polyurethane composition so that the binding material fills the voids between the gravel particles. Additional layers of gravel subsequently saturated with the binding material are provided until the gravel layer is equal in height to the lower portion of the layered wall. The layered wall is then further erected and the process continues until the layered wall is completely constructed and the binding material-saturated filler material emplaces the mine roof. Finally, the exposed surface of the exposed wall is coated with a sealant. Alternatively, the binding material and filler material can be pre-mixed and injected into the space between the two walls. If desired, binding material alone can be inserted between the two walls.
摘要翻译：提供了一个矿井密封件，其中在矿井入口处建造了两个墙壁。其中一个墙壁是按层次构造的。在分层壁的下部竖立之后，在壁之间设置第一层砾石。然后用诸如聚氨酯组合物的粘合材料使砾石饱和，使得粘合材料填充砾石颗粒之间的空隙。随后用粘合材料饱和的另外的砾石层被提供，直到砾石层的高度与分层壁的下部相等。然后进一步竖立层状壁，并且该过程继续进行，直到层状壁完全构造，并且粘合材料饱和填充材料露出矿顶。最后，暴露的壁的暴露表面涂上密封剂。或者，可以将粘合材料和填充材料预混合并注入到两个壁之间的空间中。如果需要，单独的粘结材料可以插入两个壁之间。

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