求翻译：当钻孔深度达到设计要求时，应立即用超声波桩孔检测仪（K-400型侧壁仪）对孔深、孔径、孔形和孔底沉渣量进行检查，确认满足设计要求后，报请监理工程师批准，监理工程师认可后，立即进行清孔。清孔利用钻机的反循环系统，采用气举抽浆法进行换浆清孔，在清孔的同时，将附着于护筒壁的泥浆清洗干净。清孔应达到以下标准：是什么意思？

When the drilling depth to meet the design requirements, should be immediately the ultrasonic Pile detector (k-400-type sidewall instrument) to check the hole depth, pore size, hole shape and hole sediment amount, confirm to meet design requirements, submitted to the Commissioner of Engineer for app

When the drilling depth design requirements, you should immediately test piles with an ultrasound scanner (K - side wall 400 of the depth of the hole is), aperture, hole-reared and bottom of the hole is to check and verify that meet the design requirements, approved by the engineer, the engineer, im

When the drill hole depth achieved when design request, should use the ultrasonic wave pile hole instrumentation immediately (K-400 sidewall meter) to the depth of hole, the aperture, Kong Xing and the hole bottom slime quantity carries on the inspection, after confirmed satisfies the design request

When drilling depth when you meet the design requirements, you should immediately pile holes by ultrasonic detector (K-400 type side wall unit) on the hole depth, hole, holes and holes check amount of sediment, after verifying that meet the design requirements, for the approval of supervision engine

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