Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Double-casing all-slewing super-long pile construction tool and construction method
The invention discloses a double-casing all-slewing super-long pile construction tool and a construction method. The construction tool comprises an outer casing and an inner casing, wherein the outercasing bears pressure and frictional resistance of an upper segment, and the inner casing directly drills into rock by using an inner cavity of the outer casing; and an all-slewing drilling machine applies force and torsion to the outer casing and the inner casing sequentially for drilling or pulling, so that drilling to a deeper place is facilitated. According to the construction method, a super-long pile is segmented for construction, and the constructable pile length is increased; and the outer casing and the inner casing are constructed respectively through the slewing drilling machine, sothat the working resistance of the casings is split, and the working length of the slewing drilling machine is increased.
本发明揭示了一种双套管式全回转超长桩施工工具及施工工法，施工工具包括外套管和内套管，外套管承受上段压力和摩擦阻力，内套管利用外套管内腔直接钻岩；全回转钻机先后对外套管和内套管施加力和扭力钻进或提拔，便于钻进更深的地方。施工工法对超长桩采用分段进行施工方法，增加了可施工桩长度，并通过回转钻机分别对外、内套管施工，拆分套管工作阻力，延伸回转钻机的工作长度。
Double-casing all-slewing super-long pile construction tool and construction method
The invention discloses a double-casing all-slewing super-long pile construction tool and a construction method. The construction tool comprises an outer casing and an inner casing, wherein the outercasing bears pressure and frictional resistance of an upper segment, and the inner casing directly drills into rock by using an inner cavity of the outer casing; and an all-slewing drilling machine applies force and torsion to the outer casing and the inner casing sequentially for drilling or pulling, so that drilling to a deeper place is facilitated. According to the construction method, a super-long pile is segmented for construction, and the constructable pile length is increased; and the outer casing and the inner casing are constructed respectively through the slewing drilling machine, sothat the working resistance of the casings is split, and the working length of the slewing drilling machine is increased.
本发明揭示了一种双套管式全回转超长桩施工工具及施工工法，施工工具包括外套管和内套管，外套管承受上段压力和摩擦阻力，内套管利用外套管内腔直接钻岩；全回转钻机先后对外套管和内套管施加力和扭力钻进或提拔，便于钻进更深的地方。施工工法对超长桩采用分段进行施工方法，增加了可施工桩长度，并通过回转钻机分别对外、内套管施工，拆分套管工作阻力，延伸回转钻机的工作长度。
Double-casing all-slewing super-long pile construction tool and construction method
双套管式全回转超长桩施工工具及施工工法
NONG QI (Autor:in) / LIANG FAJUN (Autor:in) / YANG HONGZHANG (Autor:in) / TANG YONG (Autor:in) / ZHU MINGJIA (Autor:in) / TANG MINGYONG (Autor:in) / LI YUSHENG (Autor:in) / LIANG XUELI (Autor:in) / MENG MINLAN (Autor:in)
16.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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