A Novel Incipient Evaluation Method for Postconstruction Settlement by Using a Statistic Approach with Time‐Extended Loading Test

Abstract

This paper proposes an incipient assessment method for postconstruction settlement of highway subgrade by using statistical analysis approach with an improved static loading test method, time-extended loading test. The time-extended loading residual settlement Sr(t) and settlement rate Vs(t) are calculated from the field test data. The test procedure and the corresponding experimental validations are presented. Based on the field test data, a probabilistic model is built to bridge the final residual settlement and the actual postconstruction settlements. The proposed time-extended loading test based assessment system has been validated through three operating and well-documented road sections. According to the validation results, the construction quality can be accurately evaluated at an early stage and the corresponding remedial measures can be applied timely.

A Prediction Method for Postconstruction Settlement of Pile‐Soil Composite Subgrade Based on Fuzzy Comprehensive Evaluation

“…i1 r (2) i1 r (3) i1 r (4) i1 r (1) i2 r (2) i2 r (3) i2 r (4) i2 ⋮ ⋮ ⋮ ⋮ r (1) in i r (2) in i r (3) in i r (4)…”

“…(2) Derive the relationship matrix R i for each primary influencing factors based on formula (10). (3) Based on formula (16), determine the comprehensive evaluation vector B i for the primary influencing factor U i using (1) i , b (2) i , b (3) i , b (4) i , (…”

“…e postconstruction settlement of the composite subgrade of expressways has always been concerned by both academia and industry, especially in some special sections, such as bridge head transition sections and the sections containing structures [1,2]. Higher requirements are put forward for the postconstruction settlement of subgrade in these sections.…”