长大陡坡富水斜井防排水施工技术

本文重点介绍长大陡坡富水斜井抽排水施工技术,坚持"以排为主,排堵结合,控制洞身渗漏水"的治水原则,对已开挖段渗漏水采取径向注浆进行封堵处理,控制洞身渗漏水量,加强施工期间涌水量的监测及预测,根据预计的涌水量,配备当前涌水量2～3倍抽水能力的设备,提高斜井抽排水能力。通过先进可靠的机械设备,科学合理的抽排水、注浆堵砂堵水等技术方案,严谨细致的规范操作,以及精心有序的组织管理,达到了预期的成效,大大的改善了现场的施工环境,在确保施工安全质量的前提下,加快了施工进度。

The Waterproof and Drainage Construction Technology of Grew up Drop-off Water Burst

This paper introduces the waterproof and drainage construction technology of grew up drop-off water burst, adheres to the water control principle of ＂taking the drainage as priority, combination with drainage and blocking up, controlling the leakage of barrel water＂, it has taken radial grouting treatment with the excavation period of seepage, controlled the leakage of barrel water, strengthened the monitoring and predicting of water inflow during the period of construction, according to the expected yield, equipped the equipment with 2~3 times the pumping capacity to improve slope drainage ability. Through advanced and reliable mechanical equipment, scientific and reasonable sand suction drainage, grouting water plugging technology and rigorous and detailed specification operation, and careful and orderly organization and management, it achieved the desired results,greatly improved the scene construction environment, on the premise of ensuring the construction safety and quality, it speeded up the construction progress.