Yunifa Rochma Riyani, Agung Nusantoro, Larashati B'tari Setyaning

Analisis Tebal Perkerasan Lentur dengan Metode Manual Desain Perkerasan Jalan dan AASHTO 1993

Introduction

Analisis tebal perkerasan lentur dengan metode manual desain perkerasan jalan dan aashto 1993 . Analisis tebal perkerasan lentur ruas Jalan Kenteng – Bencorejo menggunakan MDPJ 2017 & AASHTO 1993. Bandingkan desain & anggaran biaya konstruksi jalan.

Abstract

Jalan merupakan infrastruktur penting yang menunjang mobilisasi masyarakat. Jalan digunakan sebagai prasarana transportasi dalam bidang ekonomi, sosial, maupun budaya. Penelitian ini dilakukan dilokasi Ruas Jalan Kenteng – Bencorejo, Kecamatan Banyuurip, Kabupaten Purworejo pada STA 7+000 – 8+000. Pada ruas jalan ini jalan mengalami penurunan kondisi seperti retak, berlubang , dan bergelombang. Kondisi tersebut menganggu mobilisasi masyarakat, sehingga perlu perencanaan perkerasan agar pelayanan masyarakat dapat terpenuhi.Penelitian ini bertujuan untuk merencanakan tebal perkerasan lentur dan membandingkan anggaran biaya yang diperlukan. Penelitian ini menggunakan metode penelitian kuantitatif dengan proses analisis menggunakan metode Manual Desain Perkerasan Jalan (MDPJ) 2017 dan AASHTO 1993. Dari hasil perhitungan didapatkan hasil tebal perkerasan lentur engan metode MDPJ 2017 untuk lapis permukaan AC-WC 4 cm dan AC-BC 6 cm, dan lapis pondasi kelas A sebesar 40 cm. Sedangkan untuk tebal perkerasan menggunakan metode AASHTO 1993 yaitu untuk lapis permukaan 5 cm, lapis pondasi atas 10 cm, dan lapis pondasi bawah 10cm. Dan untuk Rencana Anggaran Biaya (RAB) untuk metode MDPJ 2017 sebesar Rp. 2.670.845.000 (Dua Enam Ratus Tujuh Puluh Delapan Ratus Empat Puluh Lima Ribu Rupiah), sedangkan untuk metode AASHTO 1993 memerlukan anggaran biaya konstruksi sebesar Rp. 1.372.006.000 (Satu Milyar Tiga Ratus Tujuh Puluh Dua Juta Enam ribu Rupiah). Metode MDPJ 2017 memerlukan biaya konstruksi yang lebih tinggi dibandingkan deengan metode AASHTO 1993 yaitu dengan selisih biaya sebesar Rp. 1.298.839.000 (Satu Milyar Dua Ratus Sembilan Puluh Delapan Juta Delapan Ratus Tiga Puluh Sembilan Ribu Rupiah).

Review

This study addresses a critical issue in civil infrastructure: the deterioration of road pavements, specifically focusing on the Kenteng – Bencorejo section in Purworejo Regency. The authors correctly identify the societal impact of degraded roads on mobility and the subsequent need for effective pavement planning. The research's objective to design flexible pavement thickness and conduct a comparative cost analysis using two distinct methods, Manual Desain Perkerasan Jalan (MDPJ) 2017 and AASHTO 1993, is both timely and relevant, particularly for local authorities making infrastructure investment decisions. The practical application of this research in addressing an existing road problem enhances its immediate significance. The methodology employed is quantitative, directly applying the MDPJ 2017 and AASHTO 1993 design procedures. The abstract clearly presents the core findings regarding pavement layer thicknesses: MDPJ 2017 results in a 4 cm AC-WC, 6 cm AC-BC, and a substantial 40 cm Class A base layer, while AASHTO 1993 suggests a 5 cm surface, 10 cm upper base, and 10 cm lower base. The most striking finding, however, lies in the cost comparison. The MDPJ 2017 method yields a construction budget of Rp. 2,670,845,000, almost double the Rp. 1,372,006,000 estimated by AASHTO 1993, with a significant difference of Rp. 1,298,839,000. This stark financial discrepancy underscores the practical implications of selecting a particular design method. While the abstract effectively presents the comparative results, a deeper exploration of the underlying reasons for such significant differences in both thickness and cost would enhance the paper's analytical depth. An expert review would anticipate a discussion on the varied design philosophies, assumed traffic loads, material specifications, and safety factors inherent in each method that could lead to such divergent outcomes. Furthermore, the paper could benefit from addressing which method is more appropriate given local traffic conditions, material availability, and long-term performance expectations, rather than solely presenting the numerical disparity. Nonetheless, this study provides valuable data for decision-makers by highlighting the substantial economic impact that can arise from applying different standard pavement design methodologies to the same road section.

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