The main content of the design of supporting the program of choice, design and calculation of the bored piles, soil nailing, and the calculation of the surface layer of soil nail, construction requirements, precipitation description of the construction specifications and excavation.

The main design elements with the support of the program selected, bored piles of design and computing, and nails and the nails of the calculated surface layer, and construction requirements, construction notes, and pit of precipitation.

The design primary coverage has the supports and protections plan choice, the drill hole filling pile design and the computation, the earth nail and the earth nail surface layer computation, the construction request, construction showing and hole excavated for building foundation precipitation showi

Design support programme choices, the main element of design and calculation of bored pile and soil nail and soil-nailing surface description, construction calculation, construction requirements and a description of Foundation pit precipitation.

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