Study on Construction Technology of Wet and Soft Fill Treated by Quicklime Powder in Wet and Soft Subgrade Engineering in Rainy Season
Due to the large settlement and poor soil stability of roadbed after construction,the construc-tion technology of wet and soft fill treated by quicklime powder in wet and soft roadbed engineering in rainy season is studied.After adding quicklime to the soft soil,the optimum water content is improved by corre-sponding reaction,and the stability of the plate is increased.The filling of subgrade should control the drying time and set up the lime digestion tank to ensure the full digestion and supply of lime.After filling with lime soil,it is leveled and rolled until the standard compactness is reached and the subgrade is filled.A temporary drainage ditch was dug outside the slope for drainage.The test results show that the settlement amount of the roadbed after construction is 47.2～50.2 mm,which is all within the expected settlement range.By controlling the settlement changes of the soil layer,the external load can maintain a certain stability in the soil layer under the foundation,and the strengthening degree of the soft soil layer can be improved.
roadbed engineeringlime powderwet and soft fillconstruction
万方数据
维普
