Open AccessAnalysis on the Control Effect of Enhanced Cushion on the Difference Settlement of New and Old Subgrade in Soft Foundation Area
Author(s) -
Zhenhua Jiang,
Dongxing Yang,
Yang Zhou,
Zhe Wang,
Xiaochun Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1838/1/012036
Subject(s) - subgrade , cushion , settlement (finance) , geotechnical engineering , pile , foundation (evidence) , displacement (psychology) , deformation (meteorology) , engineering , modulus , structural engineering , bearing capacity , geology , materials science , geography , computer science , psychology , oceanography , archaeology , composite material , world wide web , payment , psychotherapist
In order to reduce the differential settlement of the extended urban highway splicing segment, we monitored the junction of the new and old subgrade in the practical engineering, analyzed the value of pavement deformation. It found that the smaller the modulus ratio of the new and old subgrade, the greater the non-uniform settlement value. At the same time, the uneven settlement and lateral displacement of the road can be effectively reduced by using the pile-reinforced cushion structure. So the results show that the pile-reinforced cushion structure can effectively reduce the uneven settlement and lateral displacement of the old and new roads, strengthen the links between old and new roads; To enhance the stability of subgrade, it can be used for widening the old road in soft soil foundation.