ANALYSIS OF SEDIMENT MOVEMENT IN A RIVER DIVERSION SYSTEM
Abstract: Sediment-related
disaster especially debris flow occurs frequently in various places in
Indonesia. It has been well known in general that debris flow contents big size
of materials which huge power to destroy the river and surrounding area.
Comprehensive measures and rising awareness to prevent the toll of human lives
against sediment disaster is considered necessary. Diversion system to
proximate river aimed to lessen sediment load by considering its capacities and
sediment prevention facilities becomes an alternative counter measure of
sediment flood disaster. Information of river diversion capability and
associated phenomena due to sediment gravity flow is a fundamental desire for
establishing reasonable sediment control plans. Physical model compared to
simple mathematical model are conducted to know river diversion capacity to
convey sediment. The experiment used a channel made of masonry with 80 cm wide
in average and 400 cm length, and 10 % gradient. The proposed sediment control
facilities comprises two types, there are open type dam with 33 cm wide, 16cm
high (at +1.245m elevation of crest) and four slits in main stream river and
close type dam 41 cm wide, 15 cm high (at +1.255m elevation of spillway) for
river diversion. The distance of these facilities is 110 cm. The result of this
study is expected to be able to explain the sediment gravity flow behavior in
the field. It shows that the performance of river diversion and open type dam
control volume depend on quantity and mechanism of sediment flow from upstream,
and also elevation of crest of the open type dam. The largest amount of
sediment gravity flow entering diversion channel is about 7 % of sediment inflow
for +1245 m open dam crest elevation and +1255 m river diversion spillway
elevation.
Author: Agus Safari
Journal Code: jptsipilgg130022
Artikel Terkait :
Jp Teknik Sipil gg 2013
- THE EFFECT OF VARIATION CONCRETE CUBE OF AXIAL LOAD ON ULTRASONIC PULSE VELOCITY TRANSMITTER
- SAND IRON MORTAR WITH ADDITION OF LEAD OXIDE Pb3O4 VARIATION AS RADIATION SHIELDING OF X AND GAMMA RAYS
- INTEGRATED TICKETING SYSTEM OF PUBLIC TRANSPORT IN JAKARTA VS VÄRMLAND, SWEDEN
- ANALYSIS OF EFFECTIVE RAINFALL INTENSITY AND WORKING RAINFALL FOR BASIC WARNING CRITERIA DEVELOPMENT ON LAHAR FLOW EVENT
- THE USE OF NATURAL TRASS FROM SAYUTAN MAGETAN AND LIME FROM NGAMPEL BLORA AS THE MATERIAL OF CEMENT SUBSTITUTION FOR MORTAR MIXTURE
- HYDRAULIC SIMULATION OF FLASH FLOOD AS TRIGGERED BY NATURAL DAM BREAK
- Affordability Assessment to Implement Light Rail Transit (LRT) for Greater Yogyakarta
- Valuing Manggarai Station – Soekarno-Hatta International Airport Rail Link Using Stated Preference Approach
- The Comparison of a Roundabout Traffic Delay Estimation between SUMO and IHCM 1997 on Roundabout
- Flood Disaster Mitigation as Revealed by Cawang-Manggarai River Improvement of Ciliwung River
- Study of Lusi River Flood Discharge in Central Java Province
- Analysis of Hydraulic Flood Control Structure at Putat Boro River
- A REVIEW OF HIGH-SPEED RAIL PLAN IN JAVA ISLAND: A COMPARISON WITH EXISTING MODES OF TRANSPORT
- RESTRUCTURING INDONESIAN RAILWAY – INTEGRATION OR SEPARATION
- EVALUATING AND DEVELOPING LOGISTICS SYSTEM FOR EXPORTING SMALL AND MEDIUM ENTERPRISES (CASE STUDY IN YOGYAKARTA PROVINCE AND ADJACENT AREAS, INDONESIA)
- EVALUATION OF DISASTER MITIGATION SYSTEM AGAINST LAHAR FLOW OF PUTIH RIVER, MT. MERAPI AREA
- The Optimization Model of Runway and Gate Assignment
- Influence of Rainfall Patterns on the Instability of Slopes
- The Effects of Water Content Variation on Adhesion Factor of Pile Foundation in Expansive Soil
- Contractors Perceptions of Effects of Project Overhead Costs on Building Project Performance in South-South of Nigeria
- Performance of Periwinkle Shell Ash Blended Cement Concrete Exposed to Magnesium Sulphate
- Corrosion of Steel Reinforcements in Fly Ash- and Kaolin-based Geopolymer Concrete Immersed in Distilled Water and ASTM Seawater
- Seismic Behavior of Fatigue-Retrofitted Steel Frame Piers
- Evaluating Functional and Structural Condition Based Maintenances of Airfield Pavements