Analisis Perkuatan Lereng dan Drainase Eksisting Serta Penanganan Manajemen Limpasan Air Hujan

Setiawan, Setiawan (2024) Analisis Perkuatan Lereng dan Drainase Eksisting Serta Penanganan Manajemen Limpasan Air Hujan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Jalan Trunojoyo di Kota Batu mengalami tantangan serius terkait stabilitas lereng akibat tekanan air pori yang tinggi dan sistem drainase yang tidak memadai. Kondisi ini meningkatkan risiko longsor dan kerusakan jalan yang membahayakan pengguna. Penelitian ini bertujuan untuk menganalisis stabilitas lereng, mengevaluasi kinerja drainase, dan merancang solusi perkuatan serta manajemen air hujan untuk mencegah masalah yang lebih besar. Dari analisis menggunakan pendekatan "cracked soil," ditemukan bahwa faktor keamanan lereng eksisting berada dalam kisaran 0,407 hingga 0,975, yang menandakan risiko longsor tinggi. Untuk mengatasi hal ini, perkuatan dengan bored pile berdiameter 400 mm hingga 800 mm dan panjang 15–20 meter dirancang, sehingga faktor keamanan meningkat hingga lebih dari 1,25 dan memenuhi standar keselamatan. Selain itu, evaluasi sistem drainase menunjukkan bahwa kapasitas saluran eksisting tidak mampu menangani debit air hujan sebesar 1,759 m³/s dengan kecepatan aliran 4,575 m/s, yang melampaui batas aman. Oleh karena itu, disarankan penambahan saluran subdrain dan penyesuaian kemiringan saluran menjadi 0,005 untuk memastikan air dapat mengalir dengan lancar. Kombinasi antara perkuatan lereng dan manajemen air ini terbukti efektif meningkatkan stabilitas lereng, mengurangi risiko longsor, dan memperpanjang umur infrastruktur. Hasil penelitian ini diharapkan menjadi panduan praktis dan ekonomis bagi pengelolaan infrastruktur di daerah serupa.
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Trunojoyo Road in Batu City faces critical challenges in slope stability due to high pore water pressure and inadequate drainage systems, increasing the risk of landslides and road damage. This study analyzes the slope's stability, drainage performance, and designs solutions to mitigate these issues. Using the "cracked soil" approach, the safety factor of the existing slope was found to range between 0.407 and 0.975, indicating a high landslide risk. Reinforcement with bored piles measuring 400–800 mm in diameter and 15–20 meters in length was proposed, increasing the safety factor to over 1.25 to meet safety standards. Additionally, the drainage system was found incapable of handling rainwater discharge of 1.759 m³/s at a flow velocity of 4.575 m/s, which exceeds safe limits. To address this, subdrain channels and adjustments to the channel slope (to 0.005) were recommended to ensure effective water flow. These combined measures enhance slope stability, reduce landslide risks, and extend infrastructure lifespan, providing practical and economical solutions for similar regions.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Stabilitas Lereng, Cracked Soil, Drainase, Ground Anchor, Boredpile, Geoteknik, Jalan Trunojoyo, Manajemen Air Hujan,Slope Stability, Cracked Soil, Drainage, Ground Anchor, Boredpile, Geotechnical, Trunojoyo Road, Rainwater Management.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization T Technology > TA Engineering (General). Civil engineering (General) > TA780 Piles and pile-driving
Divisions:	Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Setiawan Setiawan
Date Deposited:	27 Jan 2025 10:11
Last Modified:	27 Jan 2025 10:11
URI:	http://repository.its.ac.id/id/eprint/116984

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