Section steel premixed flow state solidified soil composite pile supporting structure and construction method: Fid-Bau Portal

Section steel premixed flow state solidified soil composite pile supporting structure and construction method

PAN JUNFENG / TAN RIHUA / CHEN RONGJIN / TANG PING / HOU SHUNYI

The invention discloses a profile steel premixed flow state solidified soil composite pile supporting structure and a construction method, and relates to the field of foundation pit supporting. The structural steel premixed flow state solidified soil composite pile supporting structure comprises a supporting groove, two rows of premixed flow state solidified soil composite piles arranged on the two sides in the supporting groove, two top beams and a concrete support connected with the two top beams, and each row of premixed flow state solidified soil composite piles comprises a plurality of premixed flow state solidified soil composite piles arranged in the length direction of the supporting groove at intervals; a piece of H-shaped steel is inserted into the top of each premixed flow state solidified soil composite pile, each crown beam is connected with the top of one row of premixed flow state solidified soil composite piles and the corresponding H-shaped steel, side slope net hanging sprayed concrete layers are arranged on the two sides of the supporting groove correspondingly, and intercepting ditches are formed in the sides, away from the supporting groove, of the side slope net hanging sprayed concrete layers correspondingly. According to the structural steel premixed flow state solidified soil composite pile supporting structure and the construction method, a stable foundation pit supporting structure can be obtained through construction in a hard soil layer area, and the structural steel premixed flow state solidified soil composite pile supporting structure and the construction method have the advantages of being low in manufacturing cost, reliable in pile forming quality and environmentally friendly.

一种型钢预拌流态固化土复合桩支护结构及施工方法，涉及基坑支护领域。型钢预拌流态固化土复合桩支护结构包括支护槽、两列设于支护槽内两侧的预拌流态固化土复合桩、两个冠梁及连接两个冠梁的砼支撑，每列预拌流态固化土复合桩均包括多根沿支护槽长度方向间隔布置的预拌流态固化土复合桩，每个预拌流态固化土复合桩顶部插设一根H型钢，每个冠梁均与一列预拌流态固化土复合桩顶部和对应H型钢连接，支护槽两侧分别设有边坡挂网喷射混凝土层，边坡挂网喷射混凝土层远离支护槽一侧分别设有截水沟。型钢预拌流态固化土复合桩支护结构及施工方法能在硬质土层地区施工得到结构稳定的基坑支护结构，具有造价低、成桩质量可靠、绿色环保的优点。

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