新闻 > 国内
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China

千年古都建“地宫”

2017-08-21 08:51:48   新华网

除要面对空间的局促,这里的管廊施工还要解决噪音控制、交通疏导等问题。

“虽说管廊建成后,可以带来长久的安宁,但施工过程也得讲究,不能还没建好,就先招来一堆投诉。”张平带着记者见识了一件“静音法宝”——静压植桩机。若非近观,你根本发现不了它正以20分钟一根的速度打桩,走到约莫15米远时,才能听见它动力部分的低声轰鸣。据介绍,该项目一直按照市政施工要求,将噪音控制在60分贝以内。

为了减小对道路交通的影响,项目部也得精心设计方案。在项目部,记者见到一份《人民路交通疏导方案》,该方案中,人民路管廊被分为5段,分段施工、分期占道。方案还详细计算了标准段围挡最小的宽度,即管廊宽度(9.1米)+施工操作面(1.2米×2)+支护桩宽度(0.45米×2)+围挡至支护桩的安全距离(0.8米×2),算下来总共14米,恰好占原来28米宽的道路的一半。此外,管廊施工段每200米还要设置一个限高杆,使车辆尤其是大车经过时减速慢行,以减轻其对基坑边坡的扰动。

“一般来说,综合管廊应建设在中心区、商务区等人口高密度区,老城区尽量结合旧城改造、道路提升等工程同时建设,新开发地区应同步启动建设。”在李跃飞看来,在老城区建设管廊,对城市面貌改善的作用更为明显。

  “探索未知的世界”

管廊建成后,给水、再生水、热力、电力、电信、燃气、污水等管线都将迁至“地宫”,留给人们崭新的“无线”古都

“西安是千年古都,你们不会挖出什么文物古董,损坏什么遗址吧?”记者问。

“这个你放心!真正的墓葬、文物在比较深的地方,我们开挖得还浅着呢!”张平笑着说。

虽不用担心这些,但建设地下管廊,面对的毕竟是一片未知的世界,由此带来的“麻烦”,往往不亚于施工本身。

“所有管线在土方开挖之前,都必须先确定好迁改方案。”张平告诉记者,在设计阶段,管廊设计者要查阅所有能找到的管线普查资料,彻底摸清此前地下空间的利用情况。不过,有些管线铺设年代较早,图纸很难再找到,而且,过去有些管线实际上也并未严格地按照图纸施工,使得设计难度陡增。为了解决这个问题,只能进行“物探”,用工具去一点一点地摸清地下情况才行。即便如此,也存在着漏探率,只能小心开挖。

同样是地下空间利用,管廊建设还要协调好与地铁建设的关系。“地铁隧道一般采用盾构技术在地底下‘钻’,深度一般在地下20米左右,我们则是明挖,深度更浅。”张平说。可是,管廊如果遇到从地面“扎”至地下的地铁站时,确实比较麻烦。“现在的解决方案,一般是管廊主动绕开地铁站。也有项目试着将地铁站与管廊‘融为一体’,交叉分布,但目前尚在探索之中。”李跃飞说。

上一页3/4下一页
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000159/20170821/31140819_3.html
Server: cms-8-252
Date: 2024/10/05 19:38:34

Powered by China
China