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Civil Works
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| The civil systems consist
of civil construction works and civil engineering design.The civil
costruction works for the Kaohsiung Rapid Transit System Red and Orange
Lines mainly consists of the construction of stations, tunnels and
elevated line sections, and depots. The civil engineering design scope
covers the precise alignment of the routes, track works,geotechnical
works, tunnels and other underground structures, road works, drainage,
viaducts, and
architectural works.
The main construction methods used for the project are as follows: |
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| 1. | Cut and Cover
Construction（Cut
and Cover Construction illustraion
） This construction method, whereby the site is fully excavated, the structure built and then covered over, uses diaphragm walls as temporary retaining walls within the site area. The sequence of work is: |
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| Step one : | Construction of diaphragm walls, pin piles, and decking. | |
| Step two : | Excavation within the diaphragm walls, installing struts as work progresses. | |
| Step three : | Construction of permanent floor slabs and walls. | |
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Step four : |
Fitting out the internal structures, backfilling, and reinstating the surface structures. |
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| This method is primarily used for construction of underground stations, crossover tunnels, and areas where the geological conditions are unsuitable for shield tunnels, and is widely used both domestically and overseas. The construction will be carried out in sections in order to minimize disruption of traffic flow. The excavation and the construction of the underground structures will then be carried out below the temporary surface deck. This construction method will be used for 28 underground stations, 17 sections of line, and 2 open-air sections where the conditions are not appropriate for tunnelling. | ||
| 2. | Shield
Tunnelling（Shield
Tunnelling illustration ） This method involves the use of shield machine to drive the tunnels below the ground. After completion of a work shaft, the shield machine is lowered into the shaft and assembled there before excavation and construction of the tunnels using precast concrete lining segments of about 1.2 meter width. On completion of a tunnel drive, the shield machine will be dismantled and hoisted out via another work shaft for reuse. This construction method causes minimal disruption to traffic and the environment because all the work takes place below ground and the ground level environment is unaffected. Thirty-two sections of tunnel, or the total line length of 22,738 meters, will be built using this construction technique. |
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The Track
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The track gauge of the Kaohsiung Rapid Transit System will be 1435 mm. The track will use UIC 60 rail and elastic supporting system to absorb vibrations and minimize noise. The design speed for the main line is 90 km/hr, although the maximum operating speed will be 80 km/hr. In depots, the design speed will be reduced to 35 km/hr and the operating speed will be 25 km/hr. |
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Safety, Hygiene
and Environmental Protection
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| • |
Safety Policy The Kaohsiung Rapid Transit Corporation is committed to abide by all laws and regulations of the nations, eliminate all hazards and continuously improve its management of safety in order to protect life. |
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| • | Safety Management | |
| Recognizing the value of life and the importance of safety, the Kaohsiung Rapid Transit Corporation regards the safety of passengers, the public and its staff as of paramount importance. All practicable measures will be taken to assure safety, and contingency plans will be developed and rehearsed to minimize the impact from any accident or natural disaster. | ||
| • | Environmental Protection | |
| The Kaohsiung Rapid Transit Corporation will take all feasible measures to protect the environment both during the construction and the operation of the Rapid Transit System to assure a high quality living environment in the Kaohsiung area. Measures will include the reductions of noise and vibration and of air and water pollution, the management of traffic, and the conservation of cultural sites and landscapes. The effectiveness of these measures will be monitored regularly to ensure compliance with our commitments made in the Environmental Impact Assessment Report. | ||
