钻孔取样 meaning in Chinese
drill hole sampling
Examples
- Designed for wall drilling of concrete block or brick without using water
在无水环境下，适用于混凝土或者砖块上钻孔取样。 - Verification of concrete strength ( destructive ) by coring - sample of concrete is cored cut , capped strength of the in - situ concrete
用作证明混凝土之强度-从现声场钻孔取样板以作搞压试验，从而印证混凝土之强度。 - The main concept of the method is to distinguish the depth of the slip plane with the extruding water content zone and the enriched gray clay zone determined from the samples taken by manual twist drill
该方法的主要思想是通过麻花钻孔取样寻找含水量突出带和灰白土富集带来鉴别滑动面的深度。 - In order to ensure the safety of engineering , it should be careful to use the test result of normal drilling sampling , the pitting sampling , shaft sampling , or double - tubles and thin - wall soil collecting methods should be used
为保证工程安全，对常规钻孔取样试验成果的使用应当慎重，对重要工程宜采用探坑、竖井取样，或采用双筒薄壁取土技术。 - Through comparative analysis to the test data of tow sampling methods in drilling hole and sampling method in shaft , it was found out by the author that the drilling sampling method has obvious disturbance and depression to the soil sample , which caused the soil sample ' s dry density to be increased , porosity ratio to be decreased , filtration coefficient to be decreased , and modulus of compression to be increased
笔者通过对钻孔两种方法获取的土样与竖井土样试验数据的对比发现，钻孔取样对土样有明显的扰动和压密作用，造成了土的干密度增大、孔隙比减小、渗透系数降低、压缩模量增大。