Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-deformation foundation pit supporting pile and construction method thereof
The invention provides an anti-deformation foundation pit supporting pile and a construction method thereof.The supporting pile comprises a supporting pile body, a reinforcement cage and a prestressed steel strand assembly, and the reinforcement cage comprises a tightening hoop, a longitudinal bar and a spiral hoop which are sequentially arranged from inside to outside; the prestressed steel strand assembly comprises a prestressed steel strand, two reinforcing spiral bars, two pressure-bearing plates, an extrusion sleeve and an anchorage device, and the prestressed steel strand is located between the tightening hoop and the spiral hoop; a reinforcing spiral bar, a pressure bearing plate and an extrusion sleeve are sequentially and fixedly arranged at the lower end of the prestressed steel strand from top to bottom, and the upper end of the prestressed steel strand penetrates through the beam crown and extends out of the upper surface of the crown beam; the reinforcing spiral rib at the upper end of the prestressed steel strand is located in the top beam, and the bearing plate and the anchorage device are located on the upper surface of the top beam. The deformation amount and the pile body bending moment of the support piles can be effectively reduced, the deformation degree of the foundation pit support structure can be effectively reduced on the premise that the construction period and the manufacturing cost are not increased basically, and the safety of the surrounding environment of the foundation pit is ensured.
本发明提供一种抗变形基坑支护桩及其施工方法，支护桩包括支护桩本体、钢筋笼以及预应力钢绞线组件，钢筋笼包括从内到外依次设置的加紧箍、纵筋以及螺旋箍；预应力钢绞线组件包括预应力钢绞线、二加强螺旋筋、二承压板、挤压套以及锚具，预应力钢绞线位于加紧箍和螺旋箍之间；预应力钢绞线的下端从上到下依次固定设置有加强螺旋筋、承压板和挤压套，预应力钢绞线的上端穿过梁冠并延伸出冠梁上表面；预应力钢绞线上端的加强螺旋筋位于冠梁内部，承压板和锚具则位于冠梁上表面。本发明可有效降低支护桩的变形量和桩身弯矩，可在基本不增加工期和造价的前提下，有效减小基坑围护结构变形程度，并确保基坑周边环境的安全。
Anti-deformation foundation pit supporting pile and construction method thereof
The invention provides an anti-deformation foundation pit supporting pile and a construction method thereof.The supporting pile comprises a supporting pile body, a reinforcement cage and a prestressed steel strand assembly, and the reinforcement cage comprises a tightening hoop, a longitudinal bar and a spiral hoop which are sequentially arranged from inside to outside; the prestressed steel strand assembly comprises a prestressed steel strand, two reinforcing spiral bars, two pressure-bearing plates, an extrusion sleeve and an anchorage device, and the prestressed steel strand is located between the tightening hoop and the spiral hoop; a reinforcing spiral bar, a pressure bearing plate and an extrusion sleeve are sequentially and fixedly arranged at the lower end of the prestressed steel strand from top to bottom, and the upper end of the prestressed steel strand penetrates through the beam crown and extends out of the upper surface of the crown beam; the reinforcing spiral rib at the upper end of the prestressed steel strand is located in the top beam, and the bearing plate and the anchorage device are located on the upper surface of the top beam. The deformation amount and the pile body bending moment of the support piles can be effectively reduced, the deformation degree of the foundation pit support structure can be effectively reduced on the premise that the construction period and the manufacturing cost are not increased basically, and the safety of the surrounding environment of the foundation pit is ensured.
本发明提供一种抗变形基坑支护桩及其施工方法，支护桩包括支护桩本体、钢筋笼以及预应力钢绞线组件，钢筋笼包括从内到外依次设置的加紧箍、纵筋以及螺旋箍；预应力钢绞线组件包括预应力钢绞线、二加强螺旋筋、二承压板、挤压套以及锚具，预应力钢绞线位于加紧箍和螺旋箍之间；预应力钢绞线的下端从上到下依次固定设置有加强螺旋筋、承压板和挤压套，预应力钢绞线的上端穿过梁冠并延伸出冠梁上表面；预应力钢绞线上端的加强螺旋筋位于冠梁内部，承压板和锚具则位于冠梁上表面。本发明可有效降低支护桩的变形量和桩身弯矩，可在基本不增加工期和造价的前提下，有效减小基坑围护结构变形程度，并确保基坑周边环境的安全。
Anti-deformation foundation pit supporting pile and construction method thereof
一种抗变形基坑支护桩及其施工方法
LI ZHIWEI (Autor:in) / FANG JIAQIANG (Autor:in) / ZHAO JIANHAO (Autor:in) / LIU LU (Autor:in) / YU WEI (Autor:in) / HUANG WEIDA (Autor:in) / YANG JIANXUE (Autor:in)
10.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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