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Abstract
Under complex geological conditions, the use of rotary drilling rigs to excavate pile foundations to form holes, unfavorable factors such as silt and groundwater will bring problems such as deviated holes and collapsed holes. Research on construction technology is required to overcome these difficulties. In this paper, the technology of rotary excavation and hole formation in a thick seam and high groundwater area of a seashore is studied. The influence of mud parameters and drilling speed on the quality of hole formation is explored. An efficient drilling rate and an economical and reasonable mud parameters are obtained.
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Details
1 Guangzhou metro group co. LTD, Guangzhou, China
2 China railway construction south China construction co. LTD, Guangzhou, China
3 School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, China