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介绍了“高压冲水取袋法”检测袋装砂井深度的弊端以及“高压冲浆取袋法”的检测原理。指出依据经验使用“高压冲浆取袋法”可使检测砂井深度达到30m以上。详细介绍了“高压冲浆取袋法”的检测方法和注意事项。
Introduced the “high-pressure flushing bag method” to detect defects in the depth of bagged sand wells and “high-pressure slurry bag method ” detection principle. It is pointed out that based on experience, “high-pressure slurry bagging method” can be used to detect the depth of well above 30m. Described in detail the “high-pressure slurry bag method” detection methods and precautions.