本文選題：玻璃纖維加筋土　切入點(diǎn)：軟弱土　出處：《地下空間與工程學(xué)報(bào)》2014年S2期

【摘要】：玻璃纖維加筋土加固軟弱土路堤是一種有前途的技術(shù)。根據(jù)準(zhǔn)黏聚力原理,推導(dǎo)玻璃纖維加筋土路堤邊坡穩(wěn)定安全系數(shù)公式,分析玻璃纖維參數(shù)和邊坡高度等因素對(duì)加固路堤穩(wěn)定性的影響規(guī)律,確定玻璃纖維加筋土加固路堤主要參數(shù)。研究表明,玻璃纖維加筋土邊坡穩(wěn)定安全系數(shù)隨著纖維摻入量、纖維長(zhǎng)度的增大而增大,安全系數(shù)與纖維參數(shù)呈非線(xiàn)性關(guān)系,加固軟弱土路堤的玻璃纖維的最優(yōu)摻入量為1‰和最優(yōu)長(zhǎng)度為5 cm,安全系數(shù)與邊坡高度呈非線(xiàn)性地負(fù)增長(zhǎng)關(guān)系。采用多元非線(xiàn)性回歸方法分析不高于8 m的全厚度加固路堤穩(wěn)定安全系數(shù),建立考慮多因素影響的安全系數(shù)經(jīng)驗(yàn)公式。計(jì)算多個(gè)工況加固路堤的穩(wěn)定性,其結(jié)果與采用極限平衡方法的結(jié)果基本一致。
[Abstract]:Reinforcing soft soil embankment with glass fiber reinforced soil is a promising technique.According to the principle of quasi-cohesion, the formula of stability safety factor of glass fiber reinforced earth embankment slope is deduced, and the influence of glass fiber parameters and slope height on the stability of reinforced embankment is analyzed.The main parameters of reinforcing embankment with glass fiber reinforced soil are determined.The results show that the safety factor of glass fiber reinforced soil slope increases with the increase of fiber content and fiber length, and the safety factor is nonlinear with fiber parameters.The optimum incorporation of glass fiber is 1 鈥，

本文編號(hào)：1720274