A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deep Mixing Technology for Mitigation of Pavement Roughness
Expansive soils are well known for their cyclic shrink-swell volume change behaviour due to seasonal related moisture changes. Non-uniform soil movements from the soils in active depth zones cause distress to pavement structures resting on them. These soil movements result in uneven pavement surface and eventual cracking in all directions, thus leading to pavement roughness problems. This distress causes discomfort to travelers and it also leads to rehabilitation of the effected pavements costing millions of dollars of repairs annually. There have been several research efforts from TxDOT to prevent or mitigate swell/shrinkage related subgrade problems. In this project, researchers explored a novel ground improvement technique to stabilize expansive subsoils extending to considerable depths. The deep soil mixing (DSM) technique involves the auger mixing of in-situ soil with chemical binders in wet form and this method has resulted in uniform DSM columns. These columns embedded with geogrids have proven to be successful in reducing settlements and enhancing strengths of very soft to soft clays, organic soils, and loose sands.
Deep Mixing Technology for Mitigation of Pavement Roughness
Expansive soils are well known for their cyclic shrink-swell volume change behaviour due to seasonal related moisture changes. Non-uniform soil movements from the soils in active depth zones cause distress to pavement structures resting on them. These soil movements result in uneven pavement surface and eventual cracking in all directions, thus leading to pavement roughness problems. This distress causes discomfort to travelers and it also leads to rehabilitation of the effected pavements costing millions of dollars of repairs annually. There have been several research efforts from TxDOT to prevent or mitigate swell/shrinkage related subgrade problems. In this project, researchers explored a novel ground improvement technique to stabilize expansive subsoils extending to considerable depths. The deep soil mixing (DSM) technique involves the auger mixing of in-situ soil with chemical binders in wet form and this method has resulted in uniform DSM columns. These columns embedded with geogrids have proven to be successful in reducing settlements and enhancing strengths of very soft to soft clays, organic soils, and loose sands.
Deep Mixing Technology for Mitigation of Pavement Roughness
A. J. Puppala (author) / R. S. Madhyannapu (author) / S. Nazarian (author) / L. Hoyos (author) / D. Yuan (author)
2007
2 pages
Report
No indication
English
Soil & Rock Mechanics , Construction Equipment, Materials, & Supplies , Soil Sciences , Heave movement reduction , Pavements , Transverse cracking , Longitudinal cracking , Cements , Lime , Tables (Data) , Figures , Literature reviews , Stabilization methods , Mitigation , Investigation , Mix design programs , Engineering tests , Pavement roughness , Deep Soil Mixing (DSM)
TECHNICAL PAPERS - Deep Mixing Technology for Liquefaction Mitigation
| Online Contents | 1999
| Engineering Index Backfile | 1932
Prediction of Pavement Roughness
| NTIS | 1982
Pavement roughness and rideability
| UB Braunschweig | 1985