Changsha Wanjiali Road 220KV Power Tunnel
Wanjiali Road 220KV Power Tunnel Teli West Road Intersection-Torch Intersection section length 6601.9m, the main strata for the conglomerate, pebbles, gravel, silty clay, muddy siltstone, the tunnel is basically along the Wanjiali Elevated Direction, under the Wanjiali Elevated, Liuyang River, Changsha Metro Line 3, the complexity of the section line environment, the shield construction settlement control requirements are high, and the tunnel exists in a number of radii The tunnel has a number of continuous turns with radius of 150 meters.
万家丽路220KV电力隧道特立西路口~火炬路口区间全长6601.9m,主要地层为砾岩、卵石、圆砾、粉质黏土、泥质粉砂岩，隧道基本沿万家丽高架方向前行，下穿万家丽高架、浏阳河、长沙地铁3号线,区间线路环境复杂，盾构施工沉降控制要求高，且隧道存在多处半径150m的连续转弯。
The main stratum is medium weathering, strong weathering mud siltstone. The starting point from the Times Sunshine Avenue Station, along the Wanjiali Road northbound, need to pass through the Guitang River Bridge, Tianjiling Tunnel, Wanjiali rapid transformation of the viaduct, Yayuan gas station and other urban buildings, the construction is difficult.
The main strata are marl, carbonaceous mud-stone and sandstone, and it passes through the Civil Engineering College, Engineering Test Building, Software College and Graduate School of Hunan University.
The interval from the Dayun Station, along the Longgang Avenue below the laying, under the Baohe Shenzhen-Huizhou overpass, Metro Line 3 viaduct, Ailian District B and the new Tuen Mun Industrial Park, and then northeast into the Ruyi Road below the laying, under the Longgang River, Huizhou Salt Expressway, rows of back to the village houses into the mountain, out of the mountain under the Aomei Shijiazhuang Furniture Factory, Fuchang Electronic Science and Technology Company Limited, and finally along the Baohe Road, under the Xiamen-Shenzhen Railway to reach the Baohe Station. Finally, it will be laid along Baohe Road and pass through Xiamen-Shenzhen Railway to arrive at Baohe Station. The main strata crossed are powdery clay, fully weathered sandstone, strongly weathered sandstone, moderate weathered sandstone, slightly weathered sandstone, slightly weathered tuff, and upper soft and lower hard composite strata.
区间自大运站出发后，沿龙岗大道下方敷设，下穿宝荷深惠立交桥、地铁三号线高架桥、爱联小区B区及新屯工业园，然后往东北向拐入如意路下方敷设，下穿龙岗河、惠盐高速公路、排背围村房屋进入山体，出山体后下穿澳美世家家具厂、福昌电子科技股份有限公司，最后沿宝荷路敷设，下穿厦深铁路到达宝荷站。
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