NORSETA AJIE SAPUTRA, KekuatanGeser

NORSETA AJIE SAPUTRA, KekuatanGeser Antarmuka Laterit Palangka Raya dan Geotekstil Berdasarkan Uji Geser Langsung, Dibimbing oleh Dr. Ir. Rustam Effendi, M.A.Sc dan Ir. Markawie, MT


ABSTRAK

Tanah laterit sering dimanfaatkan untuk menunjang pembangunan infrastruktur bidang transportasi seperti jalan dan oprit jembatan. Penggunaan geotekstil sebagai
bahan perkuatan tanah adalah merupakan salah satu rekayasa geoteknik. Dalam penggunaan bahan geotekstil dan tanah laterit untuk perkuatan badan jalan diperlukan parameter dari tanah laterit dan interaksinya dengan geotekstil. Pada perencanaan dan pelaksanaan pekerjaan di lapangan, parameter kekuatan geser yang digunakan adalah nilai rasio sudut geser antarmuka tanah dan geotekstil. Nilai rasio sudut geser antarmuka tanah dan geotekstil adalah perbandingan nilai sudut gesek antarmuka tanah-geotekstil () dengan sudut gesek internal tanah laterit ().
Penentuan parameter rasio sudut geser antarmuka (/) pada kekuatan geser tanah laterit-geotekstil diperoleh dari uji geser langsung dengan metode ASTM D 3080-70. Tanah laterit yang digunakan adalah tanah laterit yang dipadatkan menggunakan alat uji proctor pada kondisi kepadatan maksimum atau memiliki nilai kadar air optimum. Tanah laterit yang digunakan berasal dari dua lokasi di Provinsi Kalimantan Tengah dibedakan berdasarkan jaraknya yang lebih dekat ke Kota Palangka Raya. Sedangkan jenis geotekstil yang digunakan adalah Geo-reinforcement HRX 250 dan HRX 300.
Dari hasil penelitian diperoleh bahwa nilai rasio sudut geser antarmuka (/) tanah laterit Palangka Raya berdasarkan dua sampel jenisgeoteksti yang berbeda dimana pada penggunaan geotekstil woven reinforcement HRX250 (halus) nilai / diperoleh 0,81 hingga 0,90 dan pada geotekstil woven reinforcement HRX 300 (agak kasar) nilai / diperoleh 0,75 hingga 0,77. Nilai rasio / tidak terlalu besar dipengaruhi oleh karakteristik geotekstil yang ditinjau yaitu massa geotekstil, kuat tarik geotekstil dan nilaielongasi geotekstil. Akan tetapi karakteristik dan jenis tanah dapat berpengaruh besar pada nilai / yang dihasilkan.

Kata kunci: sudut geser, rasio antar muka, laterit Palangka Raya, geotekstil

Hasil (Inggris) 1:

norseta ajie saputra, kekuatangeser laterite interface Palangkaraya and geotextiles based on direct shear test, guided by dr. ir. rustam effendi, m.a.sc and ir. markawie, mt




laterit abstract is often used to support the development of transport infrastructure such as roads and bridges oprit. use of geotextiles as
soil reinforcement material is one of the geotechnical engineering. in the use of geotextile material and lateritic soil for pavement reinforcement required parameters from lateritic soil and its interaction with geotextile. on the planning and execution of work in the field, shear strength parameters used is the ratio of the value of soil friction angle and geotextile interface.value ratio and the soil interface friction angle is the ratio of the value of geotextile interface friction angle soil-geotextile () with laterite soil internal friction angle ().
determination of the parameters of the interface friction angle ratio ( / ) the shear strength of laterite soil-geotextile obtained from direct shear test method astm d 3080-70.laterite soil used is compacted laterite soil using a test proctor at maximum density condition or has a value of optimum water content. laterite soil used came from two locations in the province of Central Kalimantan is distinguished by a closer proximity to the city of Palangkaraya.while the type of geotextile used is geo-reinforcement HRX 250 and HRX 300.
of the results showed that the value of the ratio of interface friction angle ( / ) Palangkaraya laterite soil is based on two different samples jenisgeoteksti where the use of woven geotextile reinforcement hrx250 (smooth ) value  /  gained 0.81 to 0,90 and the woven geotextile reinforcement HRX 300 (rather rudely) value  /  gained 0.75 to 0.77. value ratio  /  not overly influenced by the characteristics of the mass that is being simulated geotextile geotextile, geotextile tensile strength and nilaielongasi geotextile. but the characteristics and types of soil can have a big impact on the value of  /  generated.

keyword: friction angle,ratios interface, laterite Palangkaraya, geotextile

Hasil (Inggris) 2:

LAURA S NORSETA, KekuatanGeser Interface Laterite Palangka Raya and based on Direct Shear test of Geotextile, mentored by Dr. IR. Rustam Effendi, Ir and M.A.Sc. Markawie, MT
ABSTRACT



laterit is often utilized to support the construction of infrastructure such as roads and transportation fields oprit bridge. The use of geotextile as
material retaining ground is one of the Geotechnical Engineering. In the use of geotextile and soil for reinforcement purposes laterite road required parameters of laterit and its interaction with the geotextile. On the planning and execution of the work in the field, the shear strength parameter used is the value of the ratio of the angle of shearing the soil and geotextile interfaces. The value of the ratio of the shear angle of soil and geotextile interfaces is a comparison of the value soil interface friction angle-geotextile () and internal friction angle of laterit ().
the determination of shear angle ratio parameter interface (/) on the shear strength of the soil-geotextile laterite derived from direct shear test method ASTM D 3080-70. Laterite soil is compacted laterite soils using a test proctor maximum density on the conditions or have a value of optimum water content. Laterite soil that is used comes from two locations in the province of Central Kalimantan are distinguished based on the distance is much closer to the city of Palangka Raya. While the types of geotextile used is Geo-reinforcement HRX 250 and 300 HRX.
From research results obtained that the value of the ratio of the shear angle interface (/) soil of Palangka Raya laterite based on two samples of different jenisgeoteksti where the use of woven geotextile reinforcement HRX250 (smooth)/  value gained 0.81 to 0,90 and woven geotextile reinforcement at the HRX 300 (a bit rough) value/  gained 0.75 to 0,77. The value of the ratio/  not too large geotextile characteristics that are affected by the mass of geotextile reviewed, strong pull of geotextile and nilaielongasi geotextile. However, the characteristics and the type of soil can be a big influence on the value of the resulting /.

keywords: shear angle, the ratio of interface laterite, Palangka Raya, geotextile