摘要
针对目前勘察人员在工作过程中对勘察钻孔深度的确定疑惑的情况,从现行勘察规范出发,梳理了勘察确定钻孔深度的方法,主要有基础宽度比法、应力比法、设计需求法,但归根结底是以满足设计需求为最终目的。并从天然地基、地基处理和桩基础、基坑支护、抗震设计、抗浮设计等设计需求角度方面论述了勘察钻孔深度的确定,使读者对每一个钻孔深度的布置有明确的概念,做到确定钻孔深度时心中有数。同时根据勘察工作的特点,指出勘察是一种探索性活动,应分阶段进行,在阶段性成果的基础上,逐步提出满足设计要求的合理钻孔深度。勘察是为设计服务的,勘察钻孔深度的深浅取决于设计是否需要该深度处的参数。最后对目前我国勘察人员知识结构做了分析,我国勘察人员应努力提高设计素养。
In view of the current survey personnel’s doubts about the determination of the depth of the survey borehole during the work process,starting from the current survey specifications,the methods for determining the depth of the survey borehole are sorted out,mainly including the foundation width ratio method,the stress ratio method,and the design demand method.But in the final analysis,the ultimate goal is to meet the design requirements.It also discusses the determination of the survey drilling depth from the perspective of natural foundation,foundation treatment and pile foundation,foundation pit support,seismic design,anti-floating design and other design requirements,so that readers have a clear concept of the layout of each drilling depth.So as to know the depth of drilling.At the same time,according to the characteristics of the survey work,it is pointed out that the survey is an exploratory activity,which should be carried out in stages,and on the basis of the phased results,a reasonable drilling depth that meets the design requirements is gradually proposed.The survey serves the design,and the depth of the survey borehole depends on whether the design requires the parameters at that depth.Finally,the current knowledge structure of our country’s survey personnel is analyzed,and our country’s survey personnel should strive to improve their design quality.
作者
王帅
赵金宝
佟建兴
孙训海
WANG Shuai;ZHAO Jinbao;TONG Jianxing;SUN Xunhai(Jianyan Foundation Engineering Co.,Ltd.,Beijing 100013,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期2159-2163,共5页
Building Structure
关键词
勘察
钻孔深度
设计
survey
drilling depth
design
