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A platform for research: civil engineering, architecture and urbanism
Grouting type steel pipe pile and construction method thereof
The invention relates to a grouting type steel pipe pile and a construction method thereof and relates to the technical field of steel pipe pile construction. The problems that a steel pipe pile is constructed through a traditional down-the-hole hammer, the pile forming difficulty is high, and adaptability is poor are solved. The grouting type steel pipe pile comprises a steel pipe pile body formed by a steel pipe. Cement slurry and broken stone are fixed into the steel pipe pile body and the periphery of the steel pipe pile. The method comprises the following steps that firstly, a bottom sealing steel plate is installed; secondly, holing is carried out; thirdly, the steel pipe pile is constructed and stricken; fourthly, one-time grouting is carried out; fifthly, broken stone is thrown; sixthly, second-time grouting is carried out; and seventhly, a crown beam is welded. According to the steel pipe pile and the method, the cement slurry is injected into soil layers around a pile body uniformly through slurry output holes of the pile body, the bearing force of a foundation can be increased rapidly and effectively, the steel pipe is placed down through a vibrating hammer vibrating andstriking manner, friction resistance of soil bodies around the pile is reduced, thus the purpose of steel pipe pile sinking is achieved, restriction brought to the down-the-hole hammer construction method by a special stratum is effectively overcome, the construction manner is simple, safety, economy, applicability and high efficiency of construction are ensured, and the steel pipe pile is environmentally friendly and reliable.
本发明涉及一种注浆型钢管桩及其施工方法，涉及了钢管桩施工技术领域，解决了传统的潜孔锤施工钢管桩，成桩难度较高，适应性差的问题，包括由钢管构成的钢管桩本体，钢管桩本体内部和钢管桩周均固定有水泥浆和碎石，包括以下步骤：S1:安装封底钢板；S2:开孔；S3:施打钢管桩；S4:一次注浆；S5:投入碎石；S6:二次注浆；S7：焊接冠梁。本发明水泥浆通过桩身出浆孔均匀的注入桩身周边土层，可快速有效地提高地基承载力，通过振动锤振动施打方式下放钢管，减小桩周土体摩擦阻力，从而达到沉入钢管桩目的，有效克服特殊地层给潜孔锤施工方法带来的限制，施工方式简单，确保了施工的安全性、经济性、适用性和高效性，环保可靠。
Grouting type steel pipe pile and construction method thereof
The invention relates to a grouting type steel pipe pile and a construction method thereof and relates to the technical field of steel pipe pile construction. The problems that a steel pipe pile is constructed through a traditional down-the-hole hammer, the pile forming difficulty is high, and adaptability is poor are solved. The grouting type steel pipe pile comprises a steel pipe pile body formed by a steel pipe. Cement slurry and broken stone are fixed into the steel pipe pile body and the periphery of the steel pipe pile. The method comprises the following steps that firstly, a bottom sealing steel plate is installed; secondly, holing is carried out; thirdly, the steel pipe pile is constructed and stricken; fourthly, one-time grouting is carried out; fifthly, broken stone is thrown; sixthly, second-time grouting is carried out; and seventhly, a crown beam is welded. According to the steel pipe pile and the method, the cement slurry is injected into soil layers around a pile body uniformly through slurry output holes of the pile body, the bearing force of a foundation can be increased rapidly and effectively, the steel pipe is placed down through a vibrating hammer vibrating andstriking manner, friction resistance of soil bodies around the pile is reduced, thus the purpose of steel pipe pile sinking is achieved, restriction brought to the down-the-hole hammer construction method by a special stratum is effectively overcome, the construction manner is simple, safety, economy, applicability and high efficiency of construction are ensured, and the steel pipe pile is environmentally friendly and reliable.
本发明涉及一种注浆型钢管桩及其施工方法，涉及了钢管桩施工技术领域，解决了传统的潜孔锤施工钢管桩，成桩难度较高，适应性差的问题，包括由钢管构成的钢管桩本体，钢管桩本体内部和钢管桩周均固定有水泥浆和碎石，包括以下步骤：S1:安装封底钢板；S2:开孔；S3:施打钢管桩；S4:一次注浆；S5:投入碎石；S6:二次注浆；S7：焊接冠梁。本发明水泥浆通过桩身出浆孔均匀的注入桩身周边土层，可快速有效地提高地基承载力，通过振动锤振动施打方式下放钢管，减小桩周土体摩擦阻力，从而达到沉入钢管桩目的，有效克服特殊地层给潜孔锤施工方法带来的限制，施工方式简单，确保了施工的安全性、经济性、适用性和高效性，环保可靠。
Grouting type steel pipe pile and construction method thereof
一种注浆型钢管桩及其施工方法
ZHAO PENGFEI (author) / YIN LEI (author) / ZHOU GUO'AN (author) / WANG ZEXI (author) / FAN SHENGWEI (author) / HU XINHUA (author) / BAI CHANGZHENG (author) / LIU YANSHENG (author) / GUO XIANG (author) / YANG YONG (author)
2020-09-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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