A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapidly-formed expansion steel pipe pile and construction method thereof
The invention discloses a rapidly-formed expansion steel pipe pile and a construction method thereof. The rapidly-formed expansion steel pipe pile comprises an outer steel pipe with an expansion anchor claw, and an inner steel pipe with a wedge-shaped bottom end. The expansion anchor claw is firstly fixed in the outer steel pipe, and after the outer steel pipe is lowered to a hole well, the innersteel pipe is inserted into the outer steel pipe through a steel rope and a winch; in the insertion process, the wedge-shaped bottom end of the inner steel pipe extrudes the expansion anchor claw andpushes the expansion anchor claw out of the outer steel pipe; and the expansion anchor claw is wedged into soil around a pile body, so that the bearing capacity of a pile foundation is provided. The rapidly-formed expansion steel pipe pile has the advantages of short pile forming period, no vibration and low noise on the construction site, no environmental pollution, simple construction equipment,standardization design, batch production and assembly construction, is widely applicable to various civil engineering such as buildings and bridges, and has positive significance for meeting the current urban construction requirements and promoting industrial innovation and development.
本发明公开了一种速成扩张钢管桩及其施工方法，包括带有扩张锚爪的外钢管和底端加工为楔形的内钢管；扩张锚爪首先固定于外钢管内，下放外钢管至孔井后，利用钢绳、绞盘将内钢管插入外钢管；插入过程中内钢管楔形底端挤压扩张锚爪，将其从外钢管内推出；扩张锚爪楔入桩身四周土体，从而提供桩基承载力。本发明成桩周期短，施工现场无振动、噪音小，不造成环境污染，施工设备简单，可标准化设计、批量化生产、装配化施工，广泛适用于建筑、桥梁等各类土建工程，对满足当前城市建设需求、推进工业化创新发展具有积极意义。
Rapidly-formed expansion steel pipe pile and construction method thereof
The invention discloses a rapidly-formed expansion steel pipe pile and a construction method thereof. The rapidly-formed expansion steel pipe pile comprises an outer steel pipe with an expansion anchor claw, and an inner steel pipe with a wedge-shaped bottom end. The expansion anchor claw is firstly fixed in the outer steel pipe, and after the outer steel pipe is lowered to a hole well, the innersteel pipe is inserted into the outer steel pipe through a steel rope and a winch; in the insertion process, the wedge-shaped bottom end of the inner steel pipe extrudes the expansion anchor claw andpushes the expansion anchor claw out of the outer steel pipe; and the expansion anchor claw is wedged into soil around a pile body, so that the bearing capacity of a pile foundation is provided. The rapidly-formed expansion steel pipe pile has the advantages of short pile forming period, no vibration and low noise on the construction site, no environmental pollution, simple construction equipment,standardization design, batch production and assembly construction, is widely applicable to various civil engineering such as buildings and bridges, and has positive significance for meeting the current urban construction requirements and promoting industrial innovation and development.
本发明公开了一种速成扩张钢管桩及其施工方法，包括带有扩张锚爪的外钢管和底端加工为楔形的内钢管；扩张锚爪首先固定于外钢管内，下放外钢管至孔井后，利用钢绳、绞盘将内钢管插入外钢管；插入过程中内钢管楔形底端挤压扩张锚爪，将其从外钢管内推出；扩张锚爪楔入桩身四周土体，从而提供桩基承载力。本发明成桩周期短，施工现场无振动、噪音小，不造成环境污染，施工设备简单，可标准化设计、批量化生产、装配化施工，广泛适用于建筑、桥梁等各类土建工程，对满足当前城市建设需求、推进工业化创新发展具有积极意义。
Rapidly-formed expansion steel pipe pile and construction method thereof
一种速成扩张钢管桩及其施工方法
CHENG ZHAO (author) / WANG JINGQUAN (author) / LI SHUAI (author)
2020-06-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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