EVALUATION OF BUND STABILITY USING GEOSTUDIO SOFTWARE WITH GROUND IMPROVEMENT METHOD USING SAND-KEY AT RECLAMATION WORK ON SOFT SOIL

Authors

  • Bambang Pardoyo Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro
  • Kresno Wikan Sadono Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro
  • Indrastono Dwi Atmanto Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro
  • Aden Tatag Surya Bhara Dhaksa Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro
  • Nadya Paramitha Widiasari Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

DOI:

https://doi.org/10.32497/wahanats.v26i2.3131

Keywords:

Reclamation, hydraulic fill, soft soil, bund, critical height, ground improvement, sand-key, safety factor

Abstract

The use of sand-key reclamation works in soft and very soft soils to increase the stability of the bund construction. Reclamation using the hydraulic fill method requires a stable embankment structure to withstand the potential for landslides from landfills, and in sea areas with very soft subgrade soils, with small undrained cohesion values causes the bund to be unstable and do not exceed the critical limit. The purpose of this study is to evaluate the improvement of soft soil in bund construction so that it is stable using GeoStudio. The Bund stability analysis results show that the value of the sand-key depth depends on the variation in the depth of the seabed. At a seabed depth of -6 m, there is a sand-key depth of 7 m, -5 m the sand-key depth of 10 m, -4 m thesand-key depth of 10 m, -3 m the sand-key depth is 5 m. The final safety number of 1.404,1.438,1,675, and 1.354 respectively.

Author Biographies

Bambang Pardoyo, Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Kresno Wikan Sadono, Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Indrastono Dwi Atmanto, Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Aden Tatag Surya Bhara Dhaksa, Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Nadya Paramitha Widiasari, Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

Departemen Teknik Sipil, Fakultas Teknik, Universitas Diponegoro

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Published

2021-12-01

Issue

Vol. 26 No. 2 (2021): Wahana Teknik Sipil

Section

Articles

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