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唐驳虎:王梦恕院士胡说八道 高铁长期降速浪费惊人

2016-06-28 16:11:15   凤凰新闻客户端

中国现在的高铁技术已经是世界落后了!

【“如果长期按照时速300公里满载运行,两个钢轨的推力就会加大,钢轨的间距差是正负2毫米,如果超过这个范围就有可能车毁人亡。这就像运动员一样,长时间超负荷运动就活不长嘛!”】

作为铁路专家,不知道每日的道路检修么?高铁凌晨不运行,全线停驶检修线路,每天早上要先发一班确认车,定期还要有“黄医生”道路检测车。

你这吓唬谁呢。

【目前高铁的线路并不是运行时速350公里的线路,拿北京到上海的线路来举例,部分线路只能运行时速250公里的机车,部分线路可以运行350公里的机车,并不是全线都可以提速到350公里。】

进出城市的路段的确是限速250,也该减速进站了。那么可以达到350的那么长一段郊外线路,为什么不可以跑350?为什么?为什么?为什么?

【“提速容易,减速难。”王梦恕认为这可能是公众不会考虑的问题。“提速提到很高,但是机车的减速距离也随之增加了,等到把速度减下来机车运行的距离也拉长了,这也是在浪费时间嘛!”王梦恕称,时速300公里的机车刹车距离在15.7米左右,速度一旦提高,机车停站的时间就必然会拉长。】

时速300公里的机车刹车距离在15.7米左右,我这个相信是记者把15.7公里听错记错了,王院士怎么说都是铁路中人,这种低级错误倒还不至于。

高速列车加减速区段长的问题,这的确没错。加速到350公里时速的加速段可以长达20公里左右,如果站间距50公里,刚提到最高速度,又该减速了,满速运行区段不长,意义不大,这是在经济和技术上真正有影响的少数实质因素。

但是,现在中车集团已经拿出了功率更高更强劲的新一代高速列车,也就是“中国标准动车组”。通过提升功率已经把加速段压缩到15公里左右,已经可以实现50公里站间距下的有意义运行。如果站间距100公里以上,这就更有合适了。

【一位不愿具名的业内人士告诉《民生周刊》记者:“目前高铁300公里的时速运行成本已经很高了,如果全面提速会在目前基础上大大增加成本,如果没有相关补贴,铁总很有可能亏本运行。”】这是一个最大的、隐藏最深、最根本的谬论。

高铁高速运行的确会增加一些电费支出,但是,但是,但是!

高铁最大的成本在于一条铁路几百亿、上千亿的铁路建设成本!也就是建设费用逐年折旧、还贷利息。

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