秦嶺三號隧道指導性施組.doc

秦嶺Ⅲ號特長隧道是陜西省“米”字型公路網骨架戶縣澇峪口至簡車灣段高速公路的咽喉工程，也是我國國道主干線（GZ40）二連浩特至河口穿越陜西境內最艱巨的工程地段。秦嶺Ⅲ號特長隧道位于陜西省寧陜縣江口鎮境內，距江口鎮27km，其中18km為既有泥結碎石路面拓寬，新建便道（業主已經引入）9km。該工程跨越我國南北分界的秦嶺山脈，這里地形崎嶇，地勢險要，山高溝深，人煙稀少，植被茂密，地質構造復雜，工程施工難度大。
秦嶺Ⅲ號特長隧道為上、下行分離式隧道，其中上行線單洞長4683米，下行線單洞長4930米。我公司承擔施工的下行線出口K71+730~K74+500，共2770米。下行線秦嶺II號隧道進口和秦嶺Ⅲ號出口位于付加河兩岸，山高谷深。II號隧道進口位于付加河左岸，地形稍緩，我公司施工的秦嶺Ⅲ號出口位于付加河右岸約60米高的陡坡上，給施工準備帶來一定的困難。隧道右側為一小山谷，溝內常年流水，水質清澈透明，前期籌備人員已飲用。施工期間由項目經理部在適當高度選址筑壩引作施工及生活用水。
Ⅲ Qinling Mountains in Shaanxi Province No. long tunnel is the "m" shape Huxian logging road network skeleton to simple car Meiyukou throat Bay Expressway project, is China's national trunk road (GZ40) Erenhot to the estuary through the most difficult project in Shaanxi Province Lot. Qinling Ⅲ, long tunnel located in Shaanxi Province Ningshan jiankouzhen territory, from the estuary town of 27km, including 18km gravel road to both broaden the Mud, the new pavement (the owners have introduced) 9km. The project across the north and south boundaries of the Qinling Mountains of China, where rugged, difficult terrain, high mountains Goushen, sparsely populated, dense vegetation, geological structure is complicated, difficult construction.
Qinling Ⅲ, as the long tunnel, down separate tunnels, which uplink single-hole length 4683 m, down a long line of single-hole 4930 meters. I undertook the construction of the downstream line export K71 +730 ~ K74 +500, a total of 2770 meters. Downlink Qinling Tunnel II, imports and exports in the Qinling Ⅲ, pay increases river, high mountains and deep valleys. II, pay increases River Tunnel Entrance at the left bank of the terrain slowed down, the construction of the Qinling Ⅲ our exit pay increases River right bank at about 60 meters high on the steep slopes, ready to bring some construction difficulties. Tunnel on the right for a small valley, trench perennial stream, the water is clear and transparent, pre-preparation staff have been drinking. Department by the project manager during the construction of a high degree in the appropriate location for construction of dams and water guidelines.
 

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