Influence of Geotechnical Parameters on Construction Aspects of Highway Projects
摘要
Negligence/overview of assessment in geotechnical parameters leads to cost, schedule, and time overruns of a project. Improper geotechnical investigation leads to cost, schedule, and time overruns of transportation infrastructure projects. The primary purpose of the present study is to assess the causes of construction delays, cost overruns accompanied with geotechnical reasons for highway projects. In addition to that, the study also emphasizes on geotechnical-related problems in highway projects and their preventive measures. The primary data was collected by means of organized questionnaires which were distributed to the different experts, consultants, and professionals. The data related to various geotechnical-related issues were obtained through the survey. The results of descriptive statistical analysis indicated that lack of boring locations, misclassified soil, high ground water table than expected and seepage problems are the critical geotechnical parameters with negative impacts on cost, schedule and cost overruns of bridge and highway project. The authors believe that detailed geotechnical investigation followed by provision of accurate number of boring locations and design of foundations accounting all the existing complications in the subsoil can avoid the aforesaid issues effectively. Furthermore, complete awareness about geotechnical information of project site, development and implementation of minimum standards for subsurface investigation is a pre-requisite for the designer. The results of the present work should be beneficial to construction professionals, policymakers, and researchers in the field of construction management.