超前钻在滨海地区复杂岩面条件下的必要性  

Necessity of Advance Drilling Under Complex Rock Surface Conditions in Coastal Area

作　　者：李聪聪 唐明成 汤亮 袁龙彬 杨高勇 LI Cong-cong;TANG Ming-cheng;TANG Liang;YUAN Long-bin;YANG Gao-yong(South China Branch of China Construction Second Engineering Bureau Co.Ltd.,Zhuhai 519000,China)

机构地区：[1]中国建筑第二工程局有限公司华南分公司,广东珠海519000

出　　处：《工程建设与设计》2022年第17期47-49,共3页Construction & Design for Engineering

摘　　要：主要介绍超前钻在滨海地区复杂岩面条件下的优势,根据规范要求同时结合现场实际情况,沿海地区复杂岩面条件下桩基施工前采用一桩一孔超前钻很有必要,因在设计确定桩端入不同风化类别的岩层后,超前钻由于是一桩一孔,能准确反映该桩位的地层情况。通过对项目所在地的地质情况,通过工程实践,结合有关规范要求,阐明超前钻在滨海地区复杂岩面条件下的必要性。This paper mainly introduces the advantages of advance drilling under complex rock surface conditions in coastal areas.According to the specification requirements and combined with the actual situation of the site,it is necessary to use one pile and one hole advance drilling before pile foundation construction under complex rock surface conditions in coastal areas,because after the design determines that the pile end enters rock strata of different weathering categories,the advance drilling can accurately reflect the stratum of the pile position because it is one pile and one hole.Based on the geological conditions of the project site,engineering practice and relevant specifications,this paper expounds the necessity of advanced drilling under the complex rock surface conditions in coastal areas.

关 键 词：复杂岩面 桩基施工 缓黏结预应力灌注桩 超前钻 

分 类 号：TU753.3[建筑科学—建筑技术科学]