ANALISA KESTABILAN LERENG MENGGUNAKAN GEOTEKSTIL PADA JALAN AKSES PULAU BALANG BALIKPAPAN KALIMANTAN TIMUR

Muhammad Ridwan, Kukuh Prihatin, Junaidi Junaidi

Abstract


Analisa kestabilan lereng menggunakan geotekstil pada Jalan Akses Pulau Balang Balikpapan Kalimantan Timur ialah Penanganan lereng dengan beberapa alternatif penanganan. Namun, banyak alternatif lain yang dapat dilakukan salah satunya dengan menggunakan perkuatan geotekstil. Perhitungan ini bertujuan untuk dapat menganalisa perkuatan geotekstil, perhitungan terhadap internal dan eksternal, dan menganalisa kestabilan lereng dengan perkuatan geotekstil dan kombinasi alternatif penanganan menggunakan counterweight dan cerucuk. Perhitungan geotekstil meliputi, stabilitas lereng menggunakan metode FEM dengan bantuan program plaxis, koefisien tekanan tanah, Analisa kontrol stabilitas internal, dan Analisa kontrol stabilitas eksternal.  Angka keamanan bidang longsor paling kritis 1, maka direncanakan Perkuatan geotekstil dengan kekuatan Tarik = 50,809 kN/m, dengan panjang L = 31,45 m, Didapatkan nilai FKgeser = 62,646; FKguling = 21,910; FKDDT = 82,023. Hasil Analisa menggunakan perkuatan geotekstil faktor aman = 1,287, menggunakan perkuatan geotekstil dan counterweight faktor aman = 1,319, dan menggunakan perkuatan geotekstil, counterweight, dan cerucuk faktor aman = 1,326.


Keywords


Geotekstil, Counterweight, Cerucuk

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References


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DOI: https://doi.org/10.46964/inersia.v12i1.565

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