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Cote, B, Robinson, B, Gabr, M A and Borden, R H (2013) Performance-Cost Analysis of Stabilized Undercut Subgrades. Journal of Construction Engineering and Management, 139(02), 121–7.
- Type: Journal Article
- Keywords: Construction costs; Geosynthetics; Lime; Soil stabilization; Soil strength; Subgrades; Construction; Cost; Cyclic; Geosynthetics; Lime; Rutting; Soil; Stabilization; Strength; Subgrade;
- ISBN/ISSN: 0733-9364
- URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000572
- Abstract:
An approach for comparatively evaluating the performance cost of undercut subgrade stabilization measures is presented. The performance-cost analysis coupled results from laboratory cyclic load testing with material prices and estimated cost factors for stabilization alternatives. The study utilized data from 22 simulated undercut sections with different stabilization configurations over a soft subgrade with a California bearing ratio of approximately 2.0%. The computed cost factors are normalized with respect to the rut-depth magnitude and subgrade strength. Sections with lime-stabilized subgrade were the most economical with respect to initial and postrut repair cycles. Unreinforced aggregate based course (ABC) sections between 356 and 508 mm (14 and 20 in.) in thickness were economical during initial cycles. Sections with geosynthetic reinforcement showed that once enough rut depth is induced to mobilize the strength of the reinforcement, economical performance was comparable with other stabilization measures excluding lime-stabilized subgrade. When the ABC layer was thicker [between 457 and 508 mm (18 and 20 in.)], differences in the reinforcement type were less significant. Tests with 914 mm (36 in.) select fill overlaid by 76 mm (3 in.) ABC stabilization exhibited a high unit cost but were moderately economical. This study shows the advantage of including performance aspects, such as rut depth and subgrade strength, when considering the overall cost of stabilization.
de Azevedo, R C, de Oliveira Lacerda, R T, Ensslin, L, Jungles, A E and Ensslin, S R (2013) Performance Measurement to Aid Decision Making in the Budgeting Process for Apartment-Building Construction: Case Study Using MCDA-C. Journal of Construction Engineering and Management, 139(02), 225–35.
El-Anwar, O and Chen, L (2013) Computing a Displacement Distance Equivalent to Optimize Plans for Postdisaster Temporary Housing Projects. Journal of Construction Engineering and Management, 139(02), 174–84.
Gangolells, M, Casals, M, Forcada, N, Fuertes, A and Roca, X (2013) Model for Enhancing Integrated Identification, Assessment, and Operational Control of On-Site Environmental Impacts and Health and Safety Risks in Construction Firms. Journal of Construction Engineering and Management, 139(02), 138–47.
Ho, C M F (2013) Communication Makes a Corporate Code of Ethics Effective: Lessons from Hong Kong. Journal of Construction Engineering and Management, 139(02), 128–37.
Hwang, B and Lim, E J (2013) Critical Success Factors for Key Project Players and Objectives: Case Study of Singapore. Journal of Construction Engineering and Management, 139(02), 204–15.
Hwang, S, Park, M, Lee, H, Lee, S and Kim, H (2013) Dynamic Feasibility Analysis of the Housing Supply Strategies in a Recession: Korean Housing Market. Journal of Construction Engineering and Management, 139(02), 148–60.
Kang, S and Seo, J (2013) GIS Method for Haul Road Layout Planning in Large Earthmoving Projects: Framework and Analysis. Journal of Construction Engineering and Management, 139(02), 236–46.
Lu, W, Peng, Y, Shen, Q and Li, H (2013) Generic Model for Measuring Benefits of BIM as a Learning Tool in Construction Tasks. Journal of Construction Engineering and Management, 139(02), 195–203.
Sylvie, J R, Thomas, S R, Lee, S, Chapman, R E and Smith, R T (2013) Development and Interpretation of the Security Rating Index. Journal of Construction Engineering and Management, 139(02), 185–94.
Xu, J, Meng, J, Zeng, Z, Wu, S and Shen, M (2013) Resource Sharing-Based Multiobjective Multistage Construction Equipment Allocation under Fuzzy Environment. Journal of Construction Engineering and Management, 139(02), 161–73.
Yu, W, Lin, T, Liu, S and Chang, P (2013) Is the Knowledge Management System Truly Cost Effective? Case Study of KM-Enabled Engineering Problem Solving. Journal of Construction Engineering and Management, 139(02), 216–24.