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河坎挡墙作用
齿坎式挡墙的极限平衡理论分析
齿坎式挡墙的极限平衡理论分析——齿坎式挡墙具有稳定性好、节省用料的优点，但目前国内外尚无成熟的设计理论，本文采用刚体极限平衡理论对这种结构进行了分析，提出了这种结构的破坏模式，并计算出稳定安全系数，为今后此种结构设计理论的发展做出了有益的探讨...
浆砌石挡墙(清河)
rapid deve lopme nt of the market economy environme nt to expl ore publi c servants ' duty consumpti on monetizati on reform has provided a good foundation. The socialization of rear servi ce work has been la unched, and rapi d progre ss in some pl aces a nd departme nts, duty consumption monetiza tion of carrier a nd a ppr oach to manageme nt has bee n resolve d. Thir d, in re cent years, explori