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（5）回柱工站在回柱的斜上方進(jìn)行回柱；回摩擦支柱時(shí)，用錘打松水平楔；回單體液壓支柱時(shí)，用卸載手把慢慢使支柱卸載；回木支護(hù)時(shí)，還應(yīng)用另一個(gè)繩套拴好梁并用 上一頁 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] 下一頁 |
