Liquefaction Potential Based on Cone Penetration Test (CPT) : Case Study in Institut Teknologi Sumatera, Lampung

International Conference on Science, Infrastructure Technology and Regional Development

自然科学（总论）

Yudi, A.^1 ; Wirawan, N.B.^1 ; Fauzan, S.A.^1 ; Nadeak, R.^1

Civil Engineering Department, Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia^1

关键词: Cone penetration tests;    CPT (Sondir);    Cyclic resistance;    Cyclic stress ratio;    Earthquake parameters;    Empirical correlations;    Liquefaction potentials;    Liquifaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/258/1/012018/pdf
DOI  :  10.1088/1755-1315/258/1/012018

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Institut Teknologi Sumatera (ITERA) is the only state institute in Sumatera, specifically located in South Lampung region, which is a coastal area with dominant sandy soil type. It soil type can allow liquefaction. The purpose of the research is to analyze the mitigation potential of liquefaction with the deterministic method. It is expected that the research result could be used as a reference in planning of the ITERA future development. This analysis takes into account deterministic data that compares Cyclic Resistance Ratio of the soil (CRR) with Cyclic Stress Ratio (CSR) caused by an earthquake. CSR depends on the depth of soil layer, total vertical pressure, effective vertical pressure, earthquake magnitude and maximum acceleration in each layer of soil. CRR is obtained from the empirical correlation with the Cone Penetration Test (CPT) results. Judging from the results of the CPT test, the soil type in ITERA is loose sand and clay. Based on earthquake parameters and CPT test data at 12 points, ITERA is in the category of medium liquefaction potential with a safety factor value of less than 2.