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本文介绍了用聚乙醚树脂和杆柱加固岩石的方法,并对这种方法的研究经过及结果进行了叙述。在美国南达科塔州的霍姆斯太克矿(Homestake)进行了用树脂加固岩石的试验。试验前,对破裂岩石压入液体的可能性进行了检查。试验时采用了凝固时间为25分钟的铬-木胶 (хромо-лигнинвыйгель)。在运输平巷中钻凿了两排直径38毫米、深度2.1米的孔眼。孔眼的垂直间距为1.2米,水平间距约为2.4米。岩石中的破坏裂隙位于孔眼起始深度1.5米的范围內,裂隙垂直宽度约达6.4毫米。通过安装在孔眼中的垫衬器(пакеры)以小于7公斤/厘米~2的压力将溶液压入。对检查
This paper introduces the method of reinforcing the rock with polyether resin and pole, and describes the research results and the results of this method. At Homestake, South Dakota, USA, experiments were carried out to reinforce the rock with resin. Prior to the test, the possibility of the fractured rock being forced into the liquid was examined. Chromium-wood glue (хромо-лигнинвый гель) with a setting time of 25 minutes was used in the test. Drilled two rows of holes 38 mm in diameter and 2.1 meters deep in the transport lane. The vertical spacing of the holes is 1.2 meters and the horizontal spacing is about 2.4 meters. The fracture in the rock is located within 1.5 m of the initial depth of the hole, and the vertical width of the fracture is about 6.4 mm. The solution is pressed in at a pressure of less than 7 kg / cm² through a pad mounted in the eyelet (пакеры). Checked