Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Up-down switching type guniting mixing pile construction equipment and construction method thereof
The invention discloses up-down switching type guniting mixing pile construction equipment and a construction method thereof, and particularly relates to the technical field of civil construction. Three independent channels are formed in each of four drill rods, each drill rod can spray cement grout and compressed air at the same time, and through the compressed air, the cement grout and the compressed air can be sprayed into the cement grout; air intervention can effectively enlarge the slurry spraying range, improve the uniformity, reduce the stirring resistance and increase the early strength of the stirring pile, by means of the structural design of a sinking lower slurry spraying opening and a lifting upper slurry spraying opening, during sinking, re-spraying and re-stirring are conducted once within the height range above the pile bottom elevation, a W bottom is formed, during lifting, a drill rod rotates reversely to be lifted, and the stirring effect is achieved. The lower guniting opening is closed, the upper guniting opening is opened, stirring is conducted while air spraying is conducted, cement paste is sprayed through the upper guniting opening, the stirring and mixing time of the cement paste and the soil body is prolonged through rotation of the bottom drill rod, it is guaranteed that the soil body and the cement paste are fully stirred in the whole process, and the pile body strength is evenly distributed.
本发明公开了一种上下切换式喷浆搅拌桩施工设备及其施工方法，具体涉及土建施工技术领域，本发明四根钻杆的内部均有三个独立的通道，每根钻杆又能够同时喷射水泥浆液和压缩空气，通过压缩空气，空气的介入能够有效增大浆液喷射范围，提高均匀性，减小了搅拌阻力，增加了搅拌桩的早期强度，利用下沉的下喷浆口以及提升的上喷浆口的结构设计，下沉时，在桩底标高以上的高度范围内复喷复搅拌1次，形成W底，提升时，钻杆反转提升，关闭下喷浆口并开启上喷浆口，边喷气边搅拌，由上喷浆口喷射水泥浆，通过底部钻杆的转动，增加水泥浆与土体的搅拌混合时间，保证全过程土体和水泥浆液充分搅拌、桩身强度分布均匀。
Up-down switching type guniting mixing pile construction equipment and construction method thereof
The invention discloses up-down switching type guniting mixing pile construction equipment and a construction method thereof, and particularly relates to the technical field of civil construction. Three independent channels are formed in each of four drill rods, each drill rod can spray cement grout and compressed air at the same time, and through the compressed air, the cement grout and the compressed air can be sprayed into the cement grout; air intervention can effectively enlarge the slurry spraying range, improve the uniformity, reduce the stirring resistance and increase the early strength of the stirring pile, by means of the structural design of a sinking lower slurry spraying opening and a lifting upper slurry spraying opening, during sinking, re-spraying and re-stirring are conducted once within the height range above the pile bottom elevation, a W bottom is formed, during lifting, a drill rod rotates reversely to be lifted, and the stirring effect is achieved. The lower guniting opening is closed, the upper guniting opening is opened, stirring is conducted while air spraying is conducted, cement paste is sprayed through the upper guniting opening, the stirring and mixing time of the cement paste and the soil body is prolonged through rotation of the bottom drill rod, it is guaranteed that the soil body and the cement paste are fully stirred in the whole process, and the pile body strength is evenly distributed.
本发明公开了一种上下切换式喷浆搅拌桩施工设备及其施工方法，具体涉及土建施工技术领域，本发明四根钻杆的内部均有三个独立的通道，每根钻杆又能够同时喷射水泥浆液和压缩空气，通过压缩空气，空气的介入能够有效增大浆液喷射范围，提高均匀性，减小了搅拌阻力，增加了搅拌桩的早期强度，利用下沉的下喷浆口以及提升的上喷浆口的结构设计，下沉时，在桩底标高以上的高度范围内复喷复搅拌1次，形成W底，提升时，钻杆反转提升，关闭下喷浆口并开启上喷浆口，边喷气边搅拌，由上喷浆口喷射水泥浆，通过底部钻杆的转动，增加水泥浆与土体的搅拌混合时间，保证全过程土体和水泥浆液充分搅拌、桩身强度分布均匀。
Up-down switching type guniting mixing pile construction equipment and construction method thereof
一种上下切换式喷浆搅拌桩施工设备及其施工方法
ZHANG LI (Autor:in) / ZHOU ZHEN (Autor:in) / LOU RONGXIANG (Autor:in) / DU CE (Autor:in) / YE HUAIWEN (Autor:in) / YE GUANBAO (Autor:in) / ZHANG ZHEN (Autor:in) / LI XIQIN (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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