Drilling Technique and Study for National Grade One Shaft with Multi-layer Underground Water Demonstration Monitoring Well

Abstract:

According to the construction experience and concrete requirements of the project,design and construction were implemented for national grade one shaft with multi-layer underground water demonstration monitoring well for the first time,and a new technology,PVC-U plastic tube 'open hole well completion by four times',was adopted.The paper detailed the design,concrete technical measures and the final achievement.

Key words:one shaft with multi-layer underground water demonstration monitoring well; PVC - U plastic tube ; well completion