Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for excavating and pore-forming pile foundation in collapsible loess sand inclusion stratum
The invention provides a large-diameter pile foundation excavation hole-forming construction method for a collapsible loess sand inclusion stratum. The large-diameter pile foundation excavation hole-forming construction method comprises the following steps that S1, the geological condition of a current to-be-excavated area is obtained; s2, a rotary drill is adopted for pre-drilling; s3, proper cement paste is prepared according to field geological conditions; s4, cement paste is poured into the pre-drilled hole to form a protection wall; and S5, after the cement paste is solidified, drilling and digging are conducted till the designed bottom elevation of the drilled and dug hole is reached. The method is ingenious, the hole digging efficiency of the collapsible loess sand inclusion stratum is greatly improved, meanwhile, safe and efficient construction is guaranteed, the construction cost advantage is obvious, and good economic benefits are achieved.
本发明提供一种用于湿陷性黄土夹砂地层大直径桩基干开挖成孔施工方法，包括以下步骤：S1、获取当前待开挖地区的地质情况；S2、采用旋挖钻进行预钻孔；S3、根据现场地质条件，配置合适的水泥浆；S4、将水泥浆灌注在预钻孔内形成护壁；S5、待水泥浆固化后，直至钻挖至钻挖孔的设计底部标高。本发明方法巧妙，大幅度提高了湿陷性黄土夹砂地层挖孔的效率，同时保证施工的安全高效，施工成本优势明显，具有良好的经济效益。
Construction method for excavating and pore-forming pile foundation in collapsible loess sand inclusion stratum
The invention provides a large-diameter pile foundation excavation hole-forming construction method for a collapsible loess sand inclusion stratum. The large-diameter pile foundation excavation hole-forming construction method comprises the following steps that S1, the geological condition of a current to-be-excavated area is obtained; s2, a rotary drill is adopted for pre-drilling; s3, proper cement paste is prepared according to field geological conditions; s4, cement paste is poured into the pre-drilled hole to form a protection wall; and S5, after the cement paste is solidified, drilling and digging are conducted till the designed bottom elevation of the drilled and dug hole is reached. The method is ingenious, the hole digging efficiency of the collapsible loess sand inclusion stratum is greatly improved, meanwhile, safe and efficient construction is guaranteed, the construction cost advantage is obvious, and good economic benefits are achieved.
本发明提供一种用于湿陷性黄土夹砂地层大直径桩基干开挖成孔施工方法，包括以下步骤：S1、获取当前待开挖地区的地质情况；S2、采用旋挖钻进行预钻孔；S3、根据现场地质条件，配置合适的水泥浆；S4、将水泥浆灌注在预钻孔内形成护壁；S5、待水泥浆固化后，直至钻挖至钻挖孔的设计底部标高。本发明方法巧妙，大幅度提高了湿陷性黄土夹砂地层挖孔的效率，同时保证施工的安全高效，施工成本优势明显，具有良好的经济效益。
Construction method for excavating and pore-forming pile foundation in collapsible loess sand inclusion stratum
用于湿陷性黄土夹砂地层桩基干开挖成孔施工方法
CAO QINTAO (Autor:in) / WAN MENG (Autor:in) / XIA CHENG (Autor:in) / LIU KANG (Autor:in) / LI JIAN (Autor:in) / ZHANG SHIWEI (Autor:in) / LI QIUXIAN (Autor:in) / TU YOULIANG (Autor:in) / ZHAO ZHUZHU (Autor:in) / XIAO WENQIN (Autor:in)
07.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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