Pembangunan basement memerlukan perancangan yang tepat, karena galian yang tidak stabil dapat mengakibatkan keruntuhan tanah. Sehingga perlu digunakan dinding penahan tanah yang kokoh untuk mempertahankan kestabilan struktur tanah. Stabilitas ditinjau berdasarkan faktor keamanan (FK) terhadap gaya geser lateral pada dinding penahan tanah serta besarnya nilai deformasi yang terjadi. Pada penelitian ini dinding penahan tanah yang akan dianalisis yaitu soldier pile. Analisis stabilitas dinding penahan tanah dilakukan menggunakan 2 metode yaitu metode Rankine dan Plaxis 2D V.21. Metode Rankine digunakan untuk untuk mengetahui besarnya tegangan horizontal akibat beban surcharge dan beban air. Sedangkan Plaxis untuk menganalisis stabilitas dinding penahan tanah soldier pile serta mengetahui nilai deformasi. Hasil analisis Plaxis diperoleh FK dan deformasi soldier pile tahap 1, tahap 2, tahap 3, dan tahap 4. Untuk FK diperoleh nilai berturut – turut sebesar 3,321; 3,400; 2,161; dan 2,162. Sedangkan nilai deformasi diperoleh secara beturut – turut sebesar 0,0031 m; 0,0072 m; 0,0202 m; dan 0,0204 m.

The construction of the basement requires proper design, as unstable excavations can result in soil collapse. Therefore, it is necessary to use a solid soil retaining wall to maintain the stability of the soil structure. The stability is reviewed based on the safety factor (FK) against the lateral shear force on the soil retaining wall and the magnitude of the deformation value that occurs. In this study, the soil retaining wall to be analyzed is the soldier pile. The stability analysis of the soil retaining wall was carried out using 2 methods, namely the Rankine method and Plaxis 2D V.21. The Rankine method is used to determine the amount of horizontal tension due to surcharge load and water load. Meanwhile, Plaxis is to analyze the stability of the soldier pile soil retaining wall and find out the deformation value. The results of the Plaxis analysis were obtained by FK and soldier pile deformation stage 1, stage 2, stage 3, and stage 4. For FK, consecutive scores of 3,321 were obtained; 3,400; 2,161; and 2,162. Meanwhile, the deformation value was obtained by means of 0.0031 m; 0.0072 m; 0.0202 m; and 0.0204 m.