Metrocable in Medellin, Colombia
Total Page:16
File Type:pdf, Size:1020Kb
The Medellin Project in Colombia Philippe Adrien Export Director Pomagalski SA Page – 13.1 Abstract: The Medellin Project in Colombia Philippe Adrien1) The municipal council of Medellin has chosen the gondola lift solution to connect the hillside district of Santo Domingo to the city's overground metro network. The MetroCable project, as it is called, is jointly funded by the city and the mass transit company, Metro Medellin. The system is an ARIANA 8-10 gondola lift from the SATELLIT range, equipped with aluminum DIAMOND gondolas made by SIGMA. The line is scheduled to run 18 hours/day, all year round. It is 2 km long, with a vertical rise of 400 meters, three sections and four terminals, including two intermediate stations, the first of which includes a 15° turn. Ground on which the lift is built calls for extremely deep anchoring for the single-shaft towers, each of which rests on four piles, with a diameter of 2 m, driven down to a depth of 8 meters. 1 Export Director, Pomagalski SA, 109 rue Aristide Beregs, BP 47, Voreppe Cedex, F-38341, 33 4 7628 7146, Fax 33 6 7399 5702, [email protected] Page – 13.2 A New Application of the Aerial Ropeway Transportation Technology METROCABLE in MEDELLIN - COLOMBIA Philippe ADRIEN1 A. PRESENTATION: 1. MEDELLIN: a. Located at an altitude of 1,200 m, Medellin is COLOMBIA second largest city and a major economic center of this country of 50 million people. b. MEDELLIN is famous for its coffee its clothes manufacturing along with an important role played in the fashion business. The city also hosts some large foreign companies such as car manufacturer Renault which activities cover the whole Andes Community of Nations (CAN). c. The city is located along a river and stretches for 25 km from North to South surrounded by high crests some 800 meters. d. In order to cope with this specific mountainous environment of the city some important infrastructures have been realized lately. Most of • The Metro Medellin network after the them are dedicated to traffic completion of the cable car extension and urban infrastructure improvement. 2. METRO MEDELLIN: a. The mass transportation system is an over-ground metro linking various places and suburbs along 3 main lines. b. The Metro counts 30 km of tracks, some 25 stations. c. It is supported by the City of MEDELLIN and the Government of COLUMBIA since it is considered as a very important tool of social development. 1 Export Director, POMA, BP 47 F-38341 VOREPPE Cedex, T: 33-0476287146, Fax: 33-0476287191 E-mail : [email protected] Page – 13.3 3. HISTORY of the PROJECT: a. One of the major problems the Metro has to face is the lack of passenger traffic at its northern part of the network. Populations in these areas are poor and leave in typical “barrios”. They prefer to use traditional means of transportation such as taxis and small buses, only capable to cope with the narrow and tortuous streets. In addition, ground profile does not allow using any traditional and viable solution to reach potential clients. b. This is why the Municipal council of MEDELLIN has chosen the gondola lift solution to connect the hillside district of Santo Domingo to the City Metro Network. The MetroCable project, as it is called, is co- funded by the City and the mass transit company, Metro Medellin. The contract was signed with POMA on March 31st, 2003 for the supply of an ARIANA 6-10 gondola lift from the SATELLIT range, equipped with aluminum DIAMOND gondolas made by SIGMA. With a ceiling height of 2.10 m, each of the 93 gondolas has room for 8 seated or 10 standing passengers, and includes a radio and battery-solar powered lighting for nighttime operation. The line is scheduled to run 18 hours/day, all year round. It is 2 km long, with a vertical rise of 400 meters, 3 sections, 4 terminals, and 2 intermediate stations, the first of which includes a 15° angle. 4. THE SANTO DOMINGO AREA: Located in the SANTO DOMINGO built-up area, construction of the lift required the issue of a number of compulsory purchase orders on various properties. In addition, the ground on which the lift is Page – 13.4 built calls for extremely deep anchoring for the single-shaft towers, each of which rests on 4 piles, with a diameter of 2 m, driven down to a depth of 8 meters. Three companies have formed a Joint Venture to complete the project: • POMA to supply the lift, the supervision of erection and necessary training for maintenance and technical operation. • CONCONCRETO for all civil works. • TERMOTECNICA for the erection and supply of local fabrication (structure, roofing…). B. LIFT MAIN TECHNICAL CHARACTERISTICS: The line is scheduled to operate 18 hours/day, 365 days/year. Even though there is no specific requirement by Metro Medellin for POMA to guarantee a minimum availability, the lift has been designed so that it is capable to remain operable in case of a problem in the drive machinery. 2 electric motors in tandem configuration are ensuring the maximum service (base/degraded). The maintenance has also been rescheduled to fit with the large number of hours the lift is expected to operate every year. The lift consists in: 1. Mechanical Equipment: o 4 stations, single loop, single drive located at the lower terminal o Tensioning located at upper terminal o Garage for the 93 cabins located at lower terminal o Length: 2,000 m 6,000 ft o Vertical rise 4,000 m 1,320 ft o Number of stations 4 o Capacity (base/degraded): 3,000 pph / 1,500 pph o Rope diameter: 51 mm 2” o Angle at the level of station Nr. 1: 15° o Number of cabins: 93 o Type of cabins: DIAMOND 8/10, 2.10 m ceiling height o Installed power: 2 x 455 kW o Volume of concrete in civil works: 17,000 m3 o Rope speed (base/degraded) 5 m/s / 2.5 m/s Page – 13.5 o Power is taken from the rope for acceleration and deceleration ramps in both terminals o Transfers in intermediate stations are electrically powered o In both terminals, cabins cadencing system is electrical in base and degraded operation conditions. o Braking is standard: One service brake One emergency brake 2. Electrical Equipment: o The terminals (drive and return) are controlled by a safety automate (S7 – 400F by Siemens) equipped control system (SEMER design and fabrication). o The 2 intermediate stations are controlled by a separate safety automate (S7 – 400F by Siemens) equipped control system. o Both automate cabinets are located in bottom terminal. o The lift can be controlled from each station by remote control. o Diagnosis and trouble shooting can be performed remotely from POMA in France. o Fully automated garage is also controlled by its dedicated automate. C. MAIN ECONOMICAL DATA: o Total value of the investment: 25 Millions US Dollars o Cost of electro-mechanical equipment: 12.7 Millions US Dollars o Pre-project duration: 3 years o Project completion time: 16 months o Price of the metro passenger ticket: 30 cents D. DESCRIPTION OF THE LIFT: The metro system follows the river valley where Medellin City has developed. The purpose of the project is to create a “feeder line” connecting the area of Santo Domingo to the metro station of ACEVEDO as shown on the following picture. Page – 13.6 • The Metro Station of ACEVEDO where the existing metro network (on the bottom) connects with the Santo Domingo gondola lift line. Garage for the 93 gondolas is also visible on this picture. Page – 13.7 1. Bottom Terminal: • ACEVEDO: It is the drive terminal. It is also equipped with the fully automatic garage for the 93 gondolas with retractable platform. 2. Intermediate Station Nr 1: • ANDALUCIA: The line makes an angle of 15°. This deviation is made with sheave batteries. Embarkation / disembarkation of passengers are possible in both directions. 3. Intermediate Station Nr 2: • POPULAR: The line goes straight through this station. Embarkation / disembarkation of passengers are possible in both directions. Page – 13.8 4. Top Terminal: • SANTO DOMINGO: This is the return and tensioning terminal. Stress gauges are used to control the tension value applied by the hydraulic circuit. Embarkation / disembarkation of passengers are possible in both directions. 5. The Line: • The line is 2,000 m long with a vertical rise of 400 m and an angle of 15° at the level of intermediate station Nr. 1. It comprises: o 23 towers o Rope diameter: 51 mm o 3 sections o Double safety line 6. The Cabins: • There are 93 passengers cabins as follows: o DiamonD 8/10 type 2,100 mm ceiling height o 10 passengers standing of 8 seated o Interior lighting with batteries and solar panels o Full duplex passenger communication devices between the cabins and the drive terminal. Page – 13.9 E. SPECIAL FEATURES: There are several points, which have been reconsidered taking into account the use of this technology to be integrated in an urban transportation system. 1. Availability: a. The drive unit is designed so that the occurrence of a total shut down of the lift in case of mechanical or electrical problems is as minimized as possible. Base operation is made at 5 m/s rope speed: • There are 2 electric motors M1 and M2 used together to reach the 5 m/s rope speed in normal operation, each motor delivering half of the requested power. • These 2 motors are connected with U joint to the POMA/KISSLING main gearbox.