The influences on the behaviors of excavation are discussed due to the stiffness ( width ) of the retaining wall , the embedded length of the wall and the strut stiffness 探討了圍護(hù)結(jié)構(gòu)剛度(墻體寬度) 、墻體插入深度和支撐剛度對(duì)基坑性狀的影響。
Pull - out test of flexible macro - fiber is conducted firstly , this paper is emphasized effects of fiber embedded length , cured times and matrix strength on bonding strength between synthetic macro - fiber and mortar 本論文首次完成了柔性粗纖維的拉拔試驗(yàn),重點(diǎn)研究了纖維埋置長(zhǎng)度、養(yǎng)護(hù)齡期、基體強(qiáng)度對(duì)粗合成纖維-砂漿基體界面粘結(jié)強(qiáng)度的影響。
Then the judging method is proposed , and the proposed method can consider the stress history and viscosity shear strength of soft soil . in this paper , a fem program dpfbm1 . 0 ( double plastic foundation beam method ( version 1 . 0 ) ) is established . with this program , the influence of some parameters on foundation excavation is fully studied , the parameters include : compression modulus , cohesive strength , angle of internal ficiction , effective angle of internal friction , the embedded length of the wall and building load 針對(duì)當(dāng)前國(guó)內(nèi)外彈性地基梁法存在的缺陷,基于對(duì)軟土流變性的研究,采取了剪應(yīng)力判斷彈塑性狀態(tài),以改進(jìn)和完善基坑工程彈性地基梁法,推導(dǎo)了彈性狀態(tài)下地基反力系數(shù)的近似解,提出了采用剪應(yīng)力組合判斷土彈簧彈塑性狀態(tài)的方法,編制了相應(yīng)的彈塑性共同變形法分析程序dpfbm1 . 0 ( doubleplasticfoundationbeammethod ( version1 . 0 ) ) ,并采用該程序分析了壓縮模量、粘聚力、內(nèi)摩擦角等參數(shù)變化對(duì)基坑工程的影響。