Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pneumatic pile forming method for cement-soil slurry spraying pile
According to the pneumatic pile forming method for the cement-soil slurry spraying pile, during downward drilling, slurry feeding is carried out in a pneumatic pulse mode while drilling is carried out; according to the pneumatic pulse mode, pulse units formed by a section of cement paste and a section of high-pressure air are alternately formed in the slurry conveying pipeline, and the using amount of the cement paste in the pulse units is the standard slurry inlet amount of the controllable drilling footage of the section of drilling. When the drill is lifted, high-pressure air is introduced into the slurry conveying pipeline. Cement paste is conveyed in a pneumatic pulse mode, the pressure of the cement paste can be increased, and on-way pressure loss is reduced; the cement paste is uniformly distributed in the soil body; under the action of high-pressure air, attachments on a drill bit are punched away, and the phenomenon of drill holding is avoided; the cement soil stirring uniformity is improved, the cement soil curing environment is changed, and the cement soil strength is improved. And in addition, high-pressure air is used during drill lifting, so that the use amount of cement paste can be reduced, unnecessary waste is reduced, the drill bit can be lifted, the phenomenon of drill holding can be relieved, attachments on the drill bit are reduced, and the stirring efficiency is improved.
一种水泥土浆喷桩气动成桩方法，下钻时，在钻进的同时，以气动脉冲方式进行送浆；气动脉冲方式是指在输浆管路里交替形成的以一段水泥浆、一段高压空气构成的脉冲单元，脉冲单元中水泥浆的用量为一段钻进可控进尺的标准进浆量。提钻时，输浆管路里通入的是高压空气。采用气动脉冲方式输送水泥浆，可以提高水泥浆压力，减少沿程压力损失；使水泥浆在土体里分布均匀；在高压空气作用下，将钻头上附着物冲开，解决“抱钻”现象；增加水泥土搅拌均匀性，改变水泥土养护环境，提高水泥土强度。另外在提钻时使用高压空气，不仅可以降低水泥浆用量，减少不必要的浪费，还对钻头有着托举作用，也可缓解“抱钻”现象，减少钻头上的附着物，提高搅拌效率。
Pneumatic pile forming method for cement-soil slurry spraying pile
According to the pneumatic pile forming method for the cement-soil slurry spraying pile, during downward drilling, slurry feeding is carried out in a pneumatic pulse mode while drilling is carried out; according to the pneumatic pulse mode, pulse units formed by a section of cement paste and a section of high-pressure air are alternately formed in the slurry conveying pipeline, and the using amount of the cement paste in the pulse units is the standard slurry inlet amount of the controllable drilling footage of the section of drilling. When the drill is lifted, high-pressure air is introduced into the slurry conveying pipeline. Cement paste is conveyed in a pneumatic pulse mode, the pressure of the cement paste can be increased, and on-way pressure loss is reduced; the cement paste is uniformly distributed in the soil body; under the action of high-pressure air, attachments on a drill bit are punched away, and the phenomenon of drill holding is avoided; the cement soil stirring uniformity is improved, the cement soil curing environment is changed, and the cement soil strength is improved. And in addition, high-pressure air is used during drill lifting, so that the use amount of cement paste can be reduced, unnecessary waste is reduced, the drill bit can be lifted, the phenomenon of drill holding can be relieved, attachments on the drill bit are reduced, and the stirring efficiency is improved.
一种水泥土浆喷桩气动成桩方法，下钻时，在钻进的同时，以气动脉冲方式进行送浆；气动脉冲方式是指在输浆管路里交替形成的以一段水泥浆、一段高压空气构成的脉冲单元，脉冲单元中水泥浆的用量为一段钻进可控进尺的标准进浆量。提钻时，输浆管路里通入的是高压空气。采用气动脉冲方式输送水泥浆，可以提高水泥浆压力，减少沿程压力损失；使水泥浆在土体里分布均匀；在高压空气作用下，将钻头上附着物冲开，解决“抱钻”现象；增加水泥土搅拌均匀性，改变水泥土养护环境，提高水泥土强度。另外在提钻时使用高压空气，不仅可以降低水泥浆用量，减少不必要的浪费，还对钻头有着托举作用，也可缓解“抱钻”现象，减少钻头上的附着物，提高搅拌效率。
Pneumatic pile forming method for cement-soil slurry spraying pile
一种水泥土浆喷桩气动成桩方法
LIU SONGYU (Autor:in) / YANG YONG (Autor:in) / ZHANG DINGWEN (Autor:in) / DU GUANGYIN (Autor:in) / SUN ZHUPING (Autor:in) / TANG BEIHUA (Autor:in) / ZHENG CHENHUI (Autor:in) / YANG KUN (Autor:in) / HUANG GANG (Autor:in) / SEO WOONG (Autor:in)
19.09.2023
Patent
Elektronische Ressource
Chinesisch
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