Subgrade structure and construction method for water-stop reinforcement in deep-buried karst areas
A subgrade and regional technology, applied in infrastructure engineering, roads, roads, etc., can solve the problems of maintaining the long-term stability of the subgrade structure, unable to obtain efficient layout, and the development and expansion of karst caves, so as to ensure long-term stability and save construction procedures. , the effect of removing the threat
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[0013] The subgrade structure and implementation steps of the present invention will be further described below in conjunction with the accompanying drawings.
[0014] Such as figure 1 , figure 2 , image 3 As shown, a subgrade structure and construction method thereof for water-stop reinforcement in deep-buried karst areas of the present invention, the subgrade structure comprises subgrade 1, concrete cast-in-place slab 2, borehole 3, slurry radiation area 4, water flow 5, prestressed Longitudinal beams 6, karst caves 7, independent foundations 8, prestressed beams 9, steel pipes 10, sand and stones 11, grouting pipes 12, and grout radiation holes 13; wherein the prestressed beams 9 and prestressed longitudinal beams 6 intersect each other in the form of "Tian" shape layout, pouring concrete cast-in-place slab 2 on the prestressed beam, and the independent foundation 8 provides support for the prestressed beam; the grout in the grouting pipe 12 is sprayed around through th...
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