파쇄석이 혼합된 뒷채움재 보강토 옹벽의 변위거동에 대한 사례분석 = Case Study of Strain Behaviors for Reinforced Earth Wall in Crushed Stone Soil Backfill

다국어 초록 (Multilingual Abstract)

In order to assess the behavior characteristics and stability of the ribbed steel strip reinforced soil retaining wall using the granite soil included crushed stone as backfill material, a series of the field test construction and monitoring were conducted.
Displacement gauges were installed on two site of the reinforced earth wall of the 7.5m height, to obtain displacements of the wall facing during and after construction. For the reinforced earth wall of the 15m height strain gauges were installed in 7 steps to measure displacement of the wall. A step of the reinforcements and the displacement of the reinforce earth body.
In the results of monitoring, face horizontal displacements were measured by very small, and its measures were presented to satisfy the allowable criterion for that.
From the results of this study, the increment of face displacement and reinforcements strain was measured very little after construction, and it was found that the most of deformations of wall and reinforcements were occurred during construction due to compaction work for backfills.
The reason of the satisfied strain behavior in this test site is thought due to the good compaction control for the granite soil with crushed stone that has good friction property.