Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Intelligent construction method for reinforcing gas melting type frozen soil foundation
According to the intelligent construction method for reinforcing the gas-melting type frozen soil foundation, a bidirectional stirring pile machine is adopted for drilling downwards, a drill rod of the pile machine is an inner-outer double-layer drill rod, the bottom end of the inner drill rod extends out of an outer drill rod and is provided with a spray hole, a suction channel is formed between the outer drill rod and the inner drill rod, and a suction hole is formed in the bottom end of the outer drill rod; in the drilling process, saturated steam is intermittently sprayed into a drill hole through the spraying holes, stirring is carried out while spraying is carried out, ice water formed after melting is sucked through the suction holes, and back flushing is carried out on the suction holes through high-pressure gas in the period; high-pressure gas is sprayed into the drill hole during drill lifting, the suction hole is kept to suck ice water during lifting, and the high-pressure gas is adopted for backflushing. During drilling, melting of ice water in the frozen soil can be accelerated by spraying saturated steam to the frozen soil, and the temperature of the saturated steam is inversely proportional to the drilling speed, that is, the lower the drilling speed is, it shows that the current frozen soil is difficult to melt, so that the temperature of the saturated steam is increased, and the melting speed of the frozen soil is greatly increased compared with a traditional method.
本发明的一种气融式冻土地基加固智能化施工方法，采用双向搅拌桩机下钻，桩机的钻杆为内外双层钻杆，内钻杆的底端伸出外钻杆并设置有喷孔，外钻杆与内钻杆之间形成抽吸通道且在外钻杆的底端设置有抽吸孔；下钻时，由喷孔向钻孔内间断式喷送饱和蒸汽，边喷送边搅拌，通过抽吸孔对融化后形成的冰水进行抽吸，期间通过高压气体对抽吸孔进行反冲；提钻时向钻孔内喷高压气体，期间保持抽吸孔抽吸冰水，并采用高压气体进行反冲。下钻时，通过向冻土喷送饱和蒸汽的方式可加快对冻土内的冰水进行融化，并且饱和蒸汽温度与下钻速度成反比，即下钻速度越慢，说明当前冻土难以融化，则提高饱和蒸汽的温度，冻土的融化速度较传统方法有大幅度提升。
Intelligent construction method for reinforcing gas melting type frozen soil foundation
According to the intelligent construction method for reinforcing the gas-melting type frozen soil foundation, a bidirectional stirring pile machine is adopted for drilling downwards, a drill rod of the pile machine is an inner-outer double-layer drill rod, the bottom end of the inner drill rod extends out of an outer drill rod and is provided with a spray hole, a suction channel is formed between the outer drill rod and the inner drill rod, and a suction hole is formed in the bottom end of the outer drill rod; in the drilling process, saturated steam is intermittently sprayed into a drill hole through the spraying holes, stirring is carried out while spraying is carried out, ice water formed after melting is sucked through the suction holes, and back flushing is carried out on the suction holes through high-pressure gas in the period; high-pressure gas is sprayed into the drill hole during drill lifting, the suction hole is kept to suck ice water during lifting, and the high-pressure gas is adopted for backflushing. During drilling, melting of ice water in the frozen soil can be accelerated by spraying saturated steam to the frozen soil, and the temperature of the saturated steam is inversely proportional to the drilling speed, that is, the lower the drilling speed is, it shows that the current frozen soil is difficult to melt, so that the temperature of the saturated steam is increased, and the melting speed of the frozen soil is greatly increased compared with a traditional method.
本发明的一种气融式冻土地基加固智能化施工方法，采用双向搅拌桩机下钻，桩机的钻杆为内外双层钻杆，内钻杆的底端伸出外钻杆并设置有喷孔，外钻杆与内钻杆之间形成抽吸通道且在外钻杆的底端设置有抽吸孔；下钻时，由喷孔向钻孔内间断式喷送饱和蒸汽，边喷送边搅拌，通过抽吸孔对融化后形成的冰水进行抽吸，期间通过高压气体对抽吸孔进行反冲；提钻时向钻孔内喷高压气体，期间保持抽吸孔抽吸冰水，并采用高压气体进行反冲。下钻时，通过向冻土喷送饱和蒸汽的方式可加快对冻土内的冰水进行融化，并且饱和蒸汽温度与下钻速度成反比，即下钻速度越慢，说明当前冻土难以融化，则提高饱和蒸汽的温度，冻土的融化速度较传统方法有大幅度提升。
Intelligent construction method for reinforcing gas melting type frozen soil foundation
一种气融式冻土地基加固智能化施工方法
ZHANG DINGWEN (Autor:in) / YANG YONG (Autor:in) / LIU SONGYU (Autor:in) / DU GUANGYIN (Autor:in) / REN HAOMING (Autor:in) / GAO CHANGHUI (Autor:in) / SUN ZHUPING (Autor:in) / SEO WOONG (Autor:in) / ZOU GUOCHUN (Autor:in) / DENG YONGKUN (Autor:in)
27.12.2024
Patent
Elektronische Ressource
Chinesisch
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