The striking driller to drill a hole of peg base, the phenomenon of deflection hole often appears.

 
  • 采用沖擊鉆進(jìn)行樁基礎鉆孔施工,經(jīng)常會(huì )出現入巖傾斜偏位的現象,如果處理不當,就會(huì )造成廢樁。
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