Analisis Stabilitas Soldier Pile Sebagai Dinding Penahan Tanah Dengan Metode Elemen Hingga Pada Gedung Menara Bri Jl. Jend. Sudirman Pekanbaru

Siregar, Pahala Martunas (2019) Analisis Stabilitas Soldier Pile Sebagai Dinding Penahan Tanah Dengan Metode Elemen Hingga Pada Gedung Menara Bri Jl. Jend. Sudirman Pekanbaru. Other thesis, Universitas Islam Riau.

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Abstract

Construction of buildings in big cities today, basements are starting to bloom due to land constraints, limited altitude, or because of the existence of subways. Basement is usually used as a utility or parking lot. In designing basements it usually encounters several obstacles caused by high soil and groundwater conditions. To overcome this problem, a retaining wall, the soldier pile, is used. This study aims to determine the stability of the soldier pile and the effect of the spun pile on the soldier pile based on the results of the soil investigation in the form of N-SPT. The research method used is the finite element method with the help of the PLAXIS 2D v8.6 application. In the construction of the BRI tower building project, located at JL. Gen. Sudirman, Pekanbaru was built 9 floors above and 2 underground floors (basement ) to a depth of -7,6 m below the ground level. The results of the soldier pile's lateral force analysis produce internal forces. In this analysis, it is carried out in two ways, namely short-term analysis (plastic ) and long- term analysis (consolidation). The results obtained where the maximum deformation occurs in the long-term analysis at the excavation of the five left-hand pile soldier (next to the BPKP ) is 176.72 mm, the maximum moment occurs at the excavation of three short- term analyzes of -202.85 kN/m. The total displacement and maximum horizontal displacement of the soldier pile pole occur at the fifth excavation of plastic analysis of 45.17 mm and 45.15 mm respectively. For the maximum total voltage occurs in the longterm (consolidated) analysis of one excavation of -692.90 kN /. The safety factor value in the short-term analysis is 1.23 and in the long-term analysis is 1.87. The effect of the pile on the soldier pile is that the total displacement and horizontal displacement of the soldier pile are getting smaller. For short-term analysis with the influence of poles, maximum total displacement and maximum horizontal displacement occur in the soldier pile to the left of the fifth excavation (V ) of 35.68 mm with the safety factor value of 1.23, and for consolidation analysis with the influence pile, maximum total displacement and maximum horizontal displacement occur in the fifth excavation pile (V ) soldier of 22.99 mm and 22.71 mm respectively. The value of the safety factor in the long-term (consolidated) analysis is 1,88. With this value, the soldier pile has met the stability requirements for rolling forces, namely > 1.2.

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