A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-pressure guide hole vibroflotation construction process
The invention relates to a high-pressure hole guiding vibroflotation construction process which comprises the following steps: moving a high-pressure hole guiding vibroflotation device to a preset pile position, positioning, carrying out hole forming operation through the high-pressure hole guiding vibroflotation device, outputting high-pressure water and high-flow low-pressure water at the same time by the high-pressure hole guiding vibroflotation device, and stopping hole forming when the formed hole reaches the designed depth; and then the high-pressure water is closed, the pile hole is filled with stone in a segmented mode at the hole opening, the stone filled into the hole is compacted through a high-pressure hole guiding vibroflot till the design requirement is met, the stone is compacted segment by segment till the hole opening, and a composite foundation is formed. According to the high-pressure hole guiding vibroflot, the procedures of hole forming, vibroflot compaction and the like can be completed through one high-pressure hole guiding vibroflot, the requirements of the vibroflot construction technology are met, and the construction cost is low. The high-pressure jet flow jetted from the second water spraying hole and the conventional jet flow jetted from the first water spraying hole are utilized, the high-pressure jet flow and the conventional jet flow can be matched with each other, the high-pressure jet flow and the conventional jet flow are particularly suitable for pore-forming of the sandy gravel stratum, the pore-forming efficiency is high, and the pore-forming effect is good.
本发明涉及一种高压引孔振冲施工工艺，利用高压引孔振冲器移至预定桩位并进行定位，通过高压引孔振冲器进行造孔作业，高压引孔振冲器同时输出高压水和大流量低压水，造孔到达设计深度即停止造孔；之后关闭高压水，在孔口用石料分段填充桩孔，通过高压引孔振冲器对填入孔中的石料挤密直到满足设计要求，逐段挤密石料直至孔口，形成复合地基。本发明使用一台高压引孔振冲器即可完成造孔以及振冲挤密等工序，满足振冲施工工艺的要求，施工成本低。利用第二喷水孔处喷射出高压射流与第一喷水孔处喷射出常规射流这“一大一小”两种水压大小的射流，二者可相互配合，尤其适合对砂卵石地层进行造孔，造孔的效率高、效果好。
High-pressure guide hole vibroflotation construction process
The invention relates to a high-pressure hole guiding vibroflotation construction process which comprises the following steps: moving a high-pressure hole guiding vibroflotation device to a preset pile position, positioning, carrying out hole forming operation through the high-pressure hole guiding vibroflotation device, outputting high-pressure water and high-flow low-pressure water at the same time by the high-pressure hole guiding vibroflotation device, and stopping hole forming when the formed hole reaches the designed depth; and then the high-pressure water is closed, the pile hole is filled with stone in a segmented mode at the hole opening, the stone filled into the hole is compacted through a high-pressure hole guiding vibroflot till the design requirement is met, the stone is compacted segment by segment till the hole opening, and a composite foundation is formed. According to the high-pressure hole guiding vibroflot, the procedures of hole forming, vibroflot compaction and the like can be completed through one high-pressure hole guiding vibroflot, the requirements of the vibroflot construction technology are met, and the construction cost is low. The high-pressure jet flow jetted from the second water spraying hole and the conventional jet flow jetted from the first water spraying hole are utilized, the high-pressure jet flow and the conventional jet flow can be matched with each other, the high-pressure jet flow and the conventional jet flow are particularly suitable for pore-forming of the sandy gravel stratum, the pore-forming efficiency is high, and the pore-forming effect is good.
本发明涉及一种高压引孔振冲施工工艺，利用高压引孔振冲器移至预定桩位并进行定位，通过高压引孔振冲器进行造孔作业，高压引孔振冲器同时输出高压水和大流量低压水，造孔到达设计深度即停止造孔；之后关闭高压水，在孔口用石料分段填充桩孔，通过高压引孔振冲器对填入孔中的石料挤密直到满足设计要求，逐段挤密石料直至孔口，形成复合地基。本发明使用一台高压引孔振冲器即可完成造孔以及振冲挤密等工序，满足振冲施工工艺的要求，施工成本低。利用第二喷水孔处喷射出高压射流与第一喷水孔处喷射出常规射流这“一大一小”两种水压大小的射流，二者可相互配合，尤其适合对砂卵石地层进行造孔，造孔的效率高、效果好。
High-pressure guide hole vibroflotation construction process
一种高压引孔振冲施工工艺
BAO CHENYUAN (author) / ZHANG GUANGBIAO (author) / ZHANG WEIMIN (author) / ZHANG HAO (author) / ZHANG FENG (author)
2024-08-16
Patent
Electronic Resource
Chinese
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