【摘要】 揭示了土工布提高加筋土强度的力学机理。假设:平行、分层布置的土工布在垂直布面方向是连续分布的;土工布是薄膜,不影响物料的力学特性;土工布、物料、加筋土的变形是相同的;加筋土的应力状态是土工布与物料二者应力状态的叠加;加筋土的破坏只发生在物料中。提出了土工布单元,给出它与加筋土单元、物料单元间变形受力关系。结论:土工布承担了拉力,削弱了物料分担的荷载,提高了加筋土的强度;据此,可以设计出土工布的最佳布置方案。更多还原

【Abstract】 Mechanical principle is analyzed that geotextile can enhance strength of reinforced soil.Hypotheses: layers of geotextile are parallel to each other are continuous along the direction that is perpendicular to the textile;textile is film and doesn’t influence mechanical behavior of soil;deformation of textile,soil,reinforced soil is the same;the stress state of reinforced soil is the sum of stress state of geotextile and soil;the destruction of reinforced soil takes place only in soil.Geotextile element is produced,and relation of deformation and stress between reinforced soil element and soil element is discussed.Conclusions: Because geotextile bears the tension,the load on soil is weakened and the strength of reinforced soil is enhanced;according this principle,the optimal design of laying geotextile can be gotten.更多还原