Differential Settlement of Rigid Pavement of 3-Pile Differential Settlement of Rigid Pavement of 3-Pile Differential Settlement of Rigid Pavement of 3-Pile Row Nailed-slab System on Soft Clay Sub Grade Due to Monotonic and Repetitive Loadings

Puri, Anas and Hardiyatmo, Hary C. and Suhendro, Bambang and Rifa’i, Ahmad (2016) Differential Settlement of Rigid Pavement of 3-Pile Differential Settlement of Rigid Pavement of 3-Pile Differential Settlement of Rigid Pavement of 3-Pile Row Nailed-slab System on Soft Clay Sub Grade Due to Monotonic and Repetitive Loadings. In: International Conference on Technology, Innovation, and Society (ICTIS), July 2016, Intitut Teknologi Padang.

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Abstract

vement on soft soils. This system consists of a thin reinforced concrete slab, and short piles attached underneath. The installed piles under the slab were functioned as slab stiffeners and anchors. This research is aimed to learn the deflection behavior of Nailed-slab System by conducting full scale testing model. The tested full scale model was 6.00 m x 3.54 m slab area with 0.15 m in slab thickness, and consists of 15 short micro piles (0.20 m in diameter, 1.50 m in length, and 1.20 m A new kind of rigid pavement is Nailed-slab System. It is not a soil improvement method, but rather as an alternative method to improve the performance of rigid pavement on soft soils. This system consists of a thin reinforced concrete slab, and short piles attached underneath. The installed piles under the slab were functioned as slab stiffeners and anchors. This research is aimed to learn the deflection behavior of Nailed-slab System by conducting full scale testing model. The tested full scale model was 6.00 m x 3.54 m slab area with 0.15 m in slab thickness, and consists of 15 short micro piles (0.20 m in diameter, 1.50 m in length, and 1.20 m A new kind of rigid pavement is Nailed-slab System. It is not a soil improvement method, but rather as an alternative method to improve the performance of rigid pavement on soft soils. This system consists of a thin reinforced concrete slab, and short piles attached underneath. The installed piles under the slab were functioned as slab stiffeners and anchors. This research is aimed to learn the deflection behavior of Nailed-slab System by conducting full scale testing model. The tested full scale model was 6.00 m x 3.54 m slab area with 0.15 m in slab thickness, and consists of 15 short micro piles (0.20 m in diameter, 1.50 m in length, and 1.20 m in pile spacing in pile spacing in pile spacing) as slab stiffener, piles and slab was connected monolithically by) as slab stiffener, piles and slab was connected monolithically by) as slab stiffener, piles and slab was connected monolithically by using the slab thickening using the slab thickening using the slab thickening (0.40 m x 0.40 m in area and 0.20 m in thickness (0.40 m x 0.40 m in area and 0.20 m in thickness (0.40 m x 0.40 m in area and 0.20 m in thickness), then), then), then in due with vertical concrete wall barrier on the two ends of slab. Nevertheless, the testing results show good performance. The model experienced very small deflection and has higher bearing capacity above 160 kN because of the linear elastic-response is kept until load 160 kN. Loading position was not significantly influenced to the maximum deflection and bearing capacity. Differential settlement due to monotonic loadings tend higher than the one caused by repetitive loadings for interior loading. All total and differential settlements were smaller than allowable deflections.

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