立井井壁破裂的原因和预防

• 作 者: 刘占明
• 机 构: 开滦基本建设公司,
• 出 处: 煤炭科学技术
• 发表日期: 1993年01期
• 关键词: 井壁破裂 井壁结构 不均衡荷载 初期强度 迟到来水 水压力 冻结法施工 表土段 混凝土浇注 冻结壁

以钱家营3个立井井壁破裂为例,分析原因是井壁外荷载不均衡,地压和迟到来水压力大,而现浇混凝土初期强度低,内壁厚度不够,强度不足,内外壁结合不在一起等,提出预防井壁破坏的若干技术措施。

Taking Qianjiaying 3 vertical shafts as an example, the reason is that the load outside the shaft wall is unbalanced, the ground pressure and the incoming water pressure are large, while the initial strength of the cast-in-place concrete is low, the thickness of the inner wall is not enough and the strength is insufficient. Not together, put forward a number of technical measures to prevent damage to the shaft wall.