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金家庄隧道

金家庄隧道
概览
地点 中國河北省张家口市赤城县
经纬度40°53′56″N 115°32′55″E / 40.8989°N 115.5486°E / 40.8989; 115.5486
道路延崇高速公路
技术数据
长度4,228米(13,871英尺)(左洞)4,104米(13,465英尺)(右洞)
车道双洞四车道
运营速度限速80 km/h(50 mph)
坡度2%

金家庄隧道(或称为金家庄螺旋隧道金家庄特长螺旋隧道)是延崇高速公路(S3801京礼高速公路延庆崇礼段)上的螺旋隧道,位于河北省张家口市赤城县。由于该高速在赤城县的隧道进口至崇礼区棋盘梁隧道出口大约7公里的长度内需要克服250米左右的高差,为降低纵坡保证车辆安全行驶,这一段工程被设计为由1个半径为860米的螺旋线的隧道,1个普通的直隧道以及二者间设置的大桥组成。其中,金家庄特长螺旋隧道为全线控制性工程,位于赤城县炮梁乡金家庄村西北方向,长约4.2公里。于2017年8月开工建设,由四川路桥建设集团承建。2018年4月20日,经世界纪录认证(WRCA)英国总部认证官现场认证、授牌,金家庄特长螺旋隧道被认证为在建世界最长高速公路螺旋隧道[1]。隧道于2019年8月13日右线贯通[2],2019年12月31日通车。

参考资料

[编辑]
  1. ^ 祝培文 罗燕平. 延崇高速金家庄特长螺旋隧道获在建世界最长高速公路螺旋隧道认证. 长城网. [2018-04-25]. (原始内容存档于2019-09-21). 
  2. ^ 延崇高速金家庄特长螺旋隧道右线贯通. 新华网. 2019-08-14 [2019-10-29]. (原始内容存档于2019-08-14). 
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金家庄隧道
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