During the process of water well drilling, if you encounter underground caves, it will bring many challenges to the construction, and effective treatment plans need to be taken quickly.
When a cave is found, the location, size, filling and other information of the cave should be recorded in detail. If the cave is small and the filling is stable, direct grouting can be used. Select appropriate cement slurry and inject it into the cave through the drill pipe. After the cement slurry solidifies, the stability of the cave area is enhanced before drilling continues.
If the cave is large and direct grouting is difficult to ensure the effect, it is necessary to lower the casing first. Lower the casing of suitable diameter to the top of the cave, and then seal the casing and the well wall to prevent mud from leaking into the cave. Then continue drilling through the casing and cross the cave under the protection of the casing.
Contact: Mr Chen
Phone: +86 18574606855
Tel: +86 746 8323309
Email: pearldrill02@guangzhouintl.com
Add: Shanhuxi Road, Chuangfacheng Plaza, Yongzhou City ,Hunan Province China