Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pile tip cement soil sampling method of static drilling rooted pile
The invention discloses a pile tip cement soil sampling method of a static drilling rooted pile. The method comprises the steps that after the pile rooting of a precast pile is accomplished and pile tip cement soil on an expanding end portion and pile lateral cement soil inside and outside a precast pile body are formed through slip casting, before the pile tip cement soil and the pile lateral cement soil are solidified, a hollow guiding steel tube is pre-inserted along the central axis of the precast pile, the front end of the guiding steel tube penetrates the pile lateral cement soil in the precast pile body and arrives at the top of the pile tip cement soil on the expanding end portion, and the front end of the guiding steel tube is blocked with a plug which can be easily drilled through by a drilling pipe for sampling; after the solidification time of the pile tip cement soil and the pile lateral cement soil meets design requirements, the drilling pipe for sampling drills through the plug along the guiding steel tube and directly drills the pile tip cement soil to obtain a pile tip core sample of the pile tip cement soil. The pile tip cement soil sampling method of the static drilling rooted pile is simple and efficient, accurate in sampling, high in representation, and convenient to operate; meanwhile the pile tip core sample can be directly taken out, the success rate of pile tip core taking is improved, and the defects of traditional core taking that the pile tip cement soil core sample cannot be taken out due to the deviation of the perpendicularity of the drilling pipe can be avoided.
Pile tip cement soil sampling method of static drilling rooted pile
The invention discloses a pile tip cement soil sampling method of a static drilling rooted pile. The method comprises the steps that after the pile rooting of a precast pile is accomplished and pile tip cement soil on an expanding end portion and pile lateral cement soil inside and outside a precast pile body are formed through slip casting, before the pile tip cement soil and the pile lateral cement soil are solidified, a hollow guiding steel tube is pre-inserted along the central axis of the precast pile, the front end of the guiding steel tube penetrates the pile lateral cement soil in the precast pile body and arrives at the top of the pile tip cement soil on the expanding end portion, and the front end of the guiding steel tube is blocked with a plug which can be easily drilled through by a drilling pipe for sampling; after the solidification time of the pile tip cement soil and the pile lateral cement soil meets design requirements, the drilling pipe for sampling drills through the plug along the guiding steel tube and directly drills the pile tip cement soil to obtain a pile tip core sample of the pile tip cement soil. The pile tip cement soil sampling method of the static drilling rooted pile is simple and efficient, accurate in sampling, high in representation, and convenient to operate; meanwhile the pile tip core sample can be directly taken out, the success rate of pile tip core taking is improved, and the defects of traditional core taking that the pile tip cement soil core sample cannot be taken out due to the deviation of the perpendicularity of the drilling pipe can be avoided.
Pile tip cement soil sampling method of static drilling rooted pile
CHEN HONGYU (Autor:in) / ZHANG RIHONG (Autor:in) / XIANG ANLE (Autor:in) / YAN TIANLONG (Autor:in) / WANG SHUFENG (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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