摘要
研究目的:伴随着城市的不断发展和轨道交通网络的逐步构建,大连R3线运力需求与运能供给矛盾日益突出。快轨大连站作为R3线的起点站,因其折返能力制约线路的运能,对其改造迫在眉睫。本文分析扩能后的车站折返能力,研究提高过岔速度后道岔的适应性,通过对比站前、站后折返的土建实施方案,提出站前折返的扩编扩能方案,对全线的扩能改造工程具有重要意义。研究结论:(1)站前折返能力计算结果表明,提高列车侧向通过道岔速度、扩大列车编组可实现线路运能提升;(2)站后折返方案的制定需首先计算车站扩编后的折返能力,并综合土建条件制定合理的选择扩编扩能方案;(3)扩能改造方案的选择应最大程度上减少对线路运营的影响,同时兼顾经济效益和工程协调难度,合理选择工程方案;(4)本研究结论对类似线路扩能改造方案的选择具有借鉴意义。
Research purposes： With the continuous development of the city and the gradual construction of the subway network, the conflicts between the capacity demand and transport supply of the line R3 has become more remarkable. As the starting station of the line R3 ,Dalian Station＇s turn- back ability limits its transport capacity, so the transformation of Dalian Station is necessary and urgent. In this paper, the station＇s turn -back ability after capacity expansion and the switch adaptability after the lateral speed hoisting have been studied. A new expansion plan about the station - front turning - back has been put forward by comparing the construction projects of the station - front and station - post turning - back. This result has great significance to the full range of capacity expansion project. Research conclusions： （ 1 ） The calculation result of station - front turn - back capacity shows that line transportation capacity can be improved by increasing speed of train that running through the turnout in the side direction and expanding the train formation. （2） For the design of the station -post turn -back project, it needs to first calculate the turn- back capacity after the station expansion, and then according to the construction conditions to make reasonable capacity expansion plan. （3） The choice of capacity expansion plans should minimize the impact on the line operation and at the same time, pay attention to both the economic benefit and the project coordination difficulty, thus choosing the optimal solution. （4） The research results can provide a reference for the selection of other similar line expansion and expansion.
出处
《铁道工程学报》
EI
北大核心
2017年第8期83-88,97,共7页
Journal of Railway Engineering Society
关键词
城市轨道交通
既有线
扩能改造
运能提升
urban mass transit
existed railway line
capacity expansion revamping
transport capacity upgrade
