Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of stiff pedestal pile
A construction method of a stiff pedestal pile comprises the following steps that a pile position is selected; an outer core pile is constructed at the pile position; the stiff pedestal pile is constructed through in-pipe ramming or steel pipe built-in pile construction; the in-pipe ramming comprises the following steps that a prefabricated hollow pipe pile is adopted, inner core pile construction is completed through a static pressure or hammering pile sinking technology, then a bottom expanding material is added into an inner hole of the pipe pile, a long and thin steel hammer is used for repeatedly lifting and falling from the inner hole of the pipe pile, the bottom expanding material is rammed multiple times, and an expanded bottom is formed; the step of planting the pile in the steel pipe comprises the following steps of vibrating and sinking the pipe, utilizing a long and thin steel hammer to impact to expand the bottom, filling for multiple times, utilizing the long and thin steel hammer to repeatedly tamp in the steel pipe to form an expanded head, and then adopting a pipe sinking and pile planting process, namely hanging and installing a prefabricated hollow pipe pile in the steel pipe, and then lightly pressing the long and thin steel hammer on a pile holding-up hammer of the prefabricated pipe pile to pull out the steel pipe. And inner core pile construction is completed. Lateral friction force and end resistance of a soil layer can be fully exerted, so that the bearing capacity of the pile is improved.
一种劲性扩底桩的施工方法，包括以下步骤，选定桩位；在桩位处施工外芯桩；采用管内夯或者钢管内植桩施工劲性扩底桩；其中，管内夯包括以下步骤，采用预制空心管桩，通过静压或锤击沉桩工艺完成内芯桩施工，然后在管桩内孔处加入扩底料，利用细长钢锤从管桩内孔反复提升、下落并多次夯击扩底料，形成扩大底；钢管内植桩包括以下步骤，振动沉管，利用细长钢锤冲击进行扩底，并多次填料，细长钢锤在钢管内反复夯击成扩大头，然后采用沉管植桩工艺，即在钢管内吊放安装预制空心管桩，然后细长钢锤轻压在预制管桩桩顶锤拔出钢管，完成内芯桩施工。本发明能充分发挥土层的侧向摩擦力与端阻力，从而提高桩的承载力。
Construction method of stiff pedestal pile
A construction method of a stiff pedestal pile comprises the following steps that a pile position is selected; an outer core pile is constructed at the pile position; the stiff pedestal pile is constructed through in-pipe ramming or steel pipe built-in pile construction; the in-pipe ramming comprises the following steps that a prefabricated hollow pipe pile is adopted, inner core pile construction is completed through a static pressure or hammering pile sinking technology, then a bottom expanding material is added into an inner hole of the pipe pile, a long and thin steel hammer is used for repeatedly lifting and falling from the inner hole of the pipe pile, the bottom expanding material is rammed multiple times, and an expanded bottom is formed; the step of planting the pile in the steel pipe comprises the following steps of vibrating and sinking the pipe, utilizing a long and thin steel hammer to impact to expand the bottom, filling for multiple times, utilizing the long and thin steel hammer to repeatedly tamp in the steel pipe to form an expanded head, and then adopting a pipe sinking and pile planting process, namely hanging and installing a prefabricated hollow pipe pile in the steel pipe, and then lightly pressing the long and thin steel hammer on a pile holding-up hammer of the prefabricated pipe pile to pull out the steel pipe. And inner core pile construction is completed. Lateral friction force and end resistance of a soil layer can be fully exerted, so that the bearing capacity of the pile is improved.
一种劲性扩底桩的施工方法，包括以下步骤，选定桩位；在桩位处施工外芯桩；采用管内夯或者钢管内植桩施工劲性扩底桩；其中，管内夯包括以下步骤，采用预制空心管桩，通过静压或锤击沉桩工艺完成内芯桩施工，然后在管桩内孔处加入扩底料，利用细长钢锤从管桩内孔反复提升、下落并多次夯击扩底料，形成扩大底；钢管内植桩包括以下步骤，振动沉管，利用细长钢锤冲击进行扩底，并多次填料，细长钢锤在钢管内反复夯击成扩大头，然后采用沉管植桩工艺，即在钢管内吊放安装预制空心管桩，然后细长钢锤轻压在预制管桩桩顶锤拔出钢管，完成内芯桩施工。本发明能充分发挥土层的侧向摩擦力与端阻力，从而提高桩的承载力。
Construction method of stiff pedestal pile
一种劲性扩底桩的施工方法
QIU XIAOGUANG (Autor:in) / TAN SONGLIN (Autor:in) / SUN XINTONG (Autor:in) / CAO SONGLIANG (Autor:in) / QIU SHUOTING (Autor:in) / CHEN YANG (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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