Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Precast pile construction method and precast pile construction equipment
The invention provides a precast pile construction method and precast pile construction equipment. The precast pile construction method comprises the steps of (S10) placing a drill pipe in a precast pile; (S20) hammering the top end of the precast pile to sink the pile, so that the precast pile and the drill pipe sink into a soil layer synchronously; and (S30) when the bottom end of the precast pile meets hard soil layer end resistance sinking difficulty, extending a drill bit of the drill pipe out of the bottom end of the precast pile to break soil, and additionally, continuing hammering the top end of the precast pile to sink the pile. By adopting the technical scheme of the precast pile construction method, the problem that the precast pile is difficult to sink in a hard soil layer is solved, and the pile sinking quality and the construction efficiency are obviously improved. According to the technical scheme of the precast pile construction method, soil is not taken, and only the soil plug or the hard soil layer end resistance of the inner cavity part of the pipe pile are damaged, so that the precast pile can sink conveniently, the side resistance is hardly influenced, and additionally, the pile end bearing capacity of the formed pile is guaranteed. According to the precast pile construction method, through synchronous construction of internal drilling and hammering, the construction efficiency of guiding a hole for auxiliary pile sinking is greatly improved.
本发明提供了一种预制桩施工方法及预制桩施工设备。该预制桩施工方法包括：S10：将钻杆置于预制桩中；S20：对预制桩的顶端进行锤击沉桩，使得预制桩和钻杆同步沉入土层中；S30：当预制桩的底端遇见硬土层端阻下沉困难时，让钻杆的钻头伸出预制桩的底端进行破土，同时继续对预制桩的顶端进行锤击沉桩。采用本发明的技术方案，解决了预制桩在硬土层中遇见的沉桩困难的问题，显著提高了沉桩质量及施工效率。本发明的技术方案不取土，仅破坏管桩内腔部分土塞或者硬土层端阻，就可以方便预制桩下沉，几乎不影响侧阻力，同时保证了成桩的桩端承载力。在本发明中，通过内钻、锤击同步施工，大大提高了引孔辅助沉桩的施工效率。
Precast pile construction method and precast pile construction equipment
The invention provides a precast pile construction method and precast pile construction equipment. The precast pile construction method comprises the steps of (S10) placing a drill pipe in a precast pile; (S20) hammering the top end of the precast pile to sink the pile, so that the precast pile and the drill pipe sink into a soil layer synchronously; and (S30) when the bottom end of the precast pile meets hard soil layer end resistance sinking difficulty, extending a drill bit of the drill pipe out of the bottom end of the precast pile to break soil, and additionally, continuing hammering the top end of the precast pile to sink the pile. By adopting the technical scheme of the precast pile construction method, the problem that the precast pile is difficult to sink in a hard soil layer is solved, and the pile sinking quality and the construction efficiency are obviously improved. According to the technical scheme of the precast pile construction method, soil is not taken, and only the soil plug or the hard soil layer end resistance of the inner cavity part of the pipe pile are damaged, so that the precast pile can sink conveniently, the side resistance is hardly influenced, and additionally, the pile end bearing capacity of the formed pile is guaranteed. According to the precast pile construction method, through synchronous construction of internal drilling and hammering, the construction efficiency of guiding a hole for auxiliary pile sinking is greatly improved.
本发明提供了一种预制桩施工方法及预制桩施工设备。该预制桩施工方法包括：S10：将钻杆置于预制桩中；S20：对预制桩的顶端进行锤击沉桩，使得预制桩和钻杆同步沉入土层中；S30：当预制桩的底端遇见硬土层端阻下沉困难时，让钻杆的钻头伸出预制桩的底端进行破土，同时继续对预制桩的顶端进行锤击沉桩。采用本发明的技术方案，解决了预制桩在硬土层中遇见的沉桩困难的问题，显著提高了沉桩质量及施工效率。本发明的技术方案不取土，仅破坏管桩内腔部分土塞或者硬土层端阻，就可以方便预制桩下沉，几乎不影响侧阻力，同时保证了成桩的桩端承载力。在本发明中，通过内钻、锤击同步施工，大大提高了引孔辅助沉桩的施工效率。
Precast pile construction method and precast pile construction equipment
预制桩施工方法及预制桩施工设备
XU JUN (Autor:in) / GONG JIE (Autor:in) / CHEN HUAIZHI (Autor:in) / PAN XIANGWEN (Autor:in) / ZHOU TIANHAO (Autor:in) / YANG CHENG (Autor:in)
24.08.2021
Patent
Elektronische Ressource
Chinesisch
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