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    August 23

    西藏行I-成都都江堰

          一年成聚,二年成邑,三年成都”,成都由此得名,而被称为天府之国,就应得益于都江堰。《史记》:都江堰建成,使成都平原水旱从人,不知饥懂,时无荒年,天下谓之天府也’”。 都江堰由鱼嘴分水堤、飞沙堰溢洪道、宝瓶口引水口三部分组成。鱼嘴分水堤坝建在江心,上有“安澜索桥”,岷江在这里被分隔成外江和内江,外江排洪,波涛汹涌,内江水缓,灌溉广大的川西平原。飞沙堰用竹笼装卵石作堰,在鱼嘴分水堤坝上游不远处,是由横竖几个石堆构成的一组堰。江水在堰中形成环流,起到泻洪、排沙和调节水量的作用。宝瓶口是玉垒山上凿出了一个宽20公尺、40公尺、80公尺的山口,内江通过宝瓶口流入成都平原,起到了控制进水流量的作用。
        这个建于公元前256年,战国秦昭襄王五十一年的都江堰,历经2000多年风雨变迁,在5.12大地震后仍能岿然不溃,让人不能不惊叹我们老祖宗的经验与智慧,而在堰旁的“二王庙”更是古代木结构建筑科学的经典佐证。在被围起来的一片瓦砾中,能够完整保留下来的都是木结构的楼阁、门坊,现代的钢筋水泥建筑在古老的木结构建筑面前是那么的不堪一击。
        由外向内行驶在都江堰的主大街上,每隔500、1000米就能够看到一堆堆未清理的废墟和空置的楼房,楼面上清晰的留下地震时形成的一个个“叉字”形裂痕。越靠山的地方,出现废墟的频率越多,也有越来越多的成片的店铺和宾馆大楼空置着。据说现今的都江堰已成为“重建”中的“头疼”城市,因为有超过1500多所建筑在地震中虽然没有倒塌,但却因地震成为危房,没人敢住,拆与不拆成为两难。看着眼前掠过的依然繁华的城市,忽然觉得这个漂亮的城市就好像是大自然的玩具,它随便抖抖身子、伸个懒腰,就会倾于一刻。但是又有什么东西是一直存在的,历时千年在与自然抗衡。都江堰,亲眼见证了人类的脆弱与顽强!

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    yuhong chenwrote:
    也是有代价的。连着量了4次血压154/106,心跳92,这还没到拉萨呢,一路上常头晕,很想吐,以为是晕车,原来是高血压。
    Aug. 24
    琳洁 徐wrote:
    唉,苦了我一个人在办公室里,接电话都接到手软~~好好享受吧 : )
    Aug. 24

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