黄河沙坡头枢纽软岩坝基开挖施工质量控制

• 作 者: 全宗国 徐宪平
• 机 构: 湖南水利水电工程监理承包总公司,宁夏沙坡头水利枢纽有限责任公司 湖南长沙410007,宁夏中卫751700
• 出 处: 人民黄河
• 发表日期: 2005年11期
• 关键词: 软岩 坝基开挖 质量控制 沙坡头枢纽工程

由于坝基软岩的存在,给沙坡头枢纽工程的建设带来了一定的困难。在施工过程中,针对枢纽坝基软岩的特点,经过反复实践与摸索,采取了预留保护层、限制爆破、限时保护层开挖、基坑排水等措施,尽量减少对基岩的扰动破坏,使之保持天然状态,在坝基软岩的处理方面,取得了比较好的效果,保证了工程质量。

Due to the presence of soft rock in dam foundation, some difficulties have been brought to the construction of Shapotou pivot project. In the process of construction, according to the characteristics of the soft rock in the foundation of the dam, after repeated practice and exploration, some measures such as reserved protective layer, limited blasting, limited protective layer excavation and foundation pit drainage are adopted to minimize disturbance and destruction of bedrock, So as to keep it in a natural state. The dam foundation soft rock processing has achieved good results and ensured the project quality.