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PENGARUH VARIASI PANJANG DAN DIAMETER PERKUATAN GEOGRID ENCASED STONE COLUMN (GESC) PADA TANAH GAMBUT

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Peat soil has low bearing capacity and high compressibility and therefore requires improvement before being used as a construction supporting layer. This study analyzes the effect of variations in length and diameter of the Geogrid Encased Stone Column (GESC) on the improvement of peat soil bearing capacity compared to conventional stone columns. The experimental testing was conducted using a single column model with seven variations: diameter 9 cm with lengths of 45 cm, 67.5 cm, and 90 cm; length 45 cm with diameters of 4.5 cm, 6 cm, and 9 cm; and length 90 cm with diameters of 9 cm, 12 cm, and 18 cm. The ultimate bearing capacity (Qu) was determined using the Tangent Intersection and Chin methods and evaluated through the Bearing Capacity Ratio (BCR). The highest BCR value was obtained in variation A7 (L = 90 cm; d = 18 cm; L/d = 5), reaching 24.557 (Tangent Intersection) and 27.912 (Chin), while the lowest was recorded in variation A1 (L = 45 cm; d = 4.5 cm; L/d = 10), with values of 2.759 and 2.658, respectively. In general, a larger diameter accompanied by a lower L/d ratio significantly increases the bearing capacity and BCR value, indicating that GESC is effective as a peat soil improvement method. Kata kunci: Peat Soil, Geogrid Encased Stone Column (GESC), Bearing Capacity, L/d ratio, Bearing Capacity Ratio (BCR)

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Detail Information

Series Title

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Call Number

T1940402026

Publisher

Indralaya : Prodi Teknik Sipil dan Perencanaan, Fakultas Teknik Universitas Sriwijaya., 2026

Collation

iv, 108 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

624.151 07

Content Type

Text

Media Type

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Carrier Type

-

Edition

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Subject(s)

Prodi Teknik Sipil dan Perencanaan
Perbaikan tanah

Specific Detail Info

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Statement of Responsibility

TUTI

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