Wearing a broken layer and a broken broken belt, this book is published at high speed along the river!

Author:Traffic release Time:2022.07.25

The G4216 Line Sichuan Pingshan New City to Panzhihua Expressway is set along the Jindsha River, so it is called "along the river". Among them, Pingshan New City to Jinyang section is 165.6 kilometers in length. There are many tunnels, with a total of 45, with a tunnel ratio of 70%. In order to further standardize and guide the construction of the highway tunnel along the river, improve the standardization level of engineering construction, and create a safe, efficient, standardized, and intelligent quality project, based on the existing specifications, standards, and construction experience The characteristics of the project have written the "Guidelines for the Standardization Construction of Sichuan Highway Tunnels along the River". There are five major characteristics of the Jiangjiang Expressway Tunnel Project: First, "Long", a total of 17 special tunnels on the entire line; the other is "deep", 4 tunnels with a depth of more than kilometers; the third is that the tunnel structures are diverse, except for separate tunnels, except for separate tunnels. Instead, there are still arched tunnels, small net distance tunnels, and bifurcation tunnels, etc.; Fourth, the geological conditions are complicated, and the entire line of tunnels through 9 folds, 14 handling layers, crossing the Edi -Jinyang, Daliangshan Fracture and other strong earthquakes and other strong earthquakes. The break zone, plus the deep unloading of the Jinsha River and its supporting ditch, and the re -construction of the reservoir of the stall power station, the tunnel construction is facing various engineering problems such as population, gas, rocky, high ground stress, weak surrounding rocks; The construction site conditions are complicated. During the peak of the tunnel construction, there are nearly 200 operations, there are many construction teams, and the construction management is difficult. In view of the above -mentioned project characteristics, the active implementation of standardized construction and sorting the text is of great significance for ensuring construction safety, improving construction quality, improving construction efficiency, and reducing construction costs. The content of this book is detailed, the system is comprehensive, covering the structure, forecasting, excavation, slag, support, and monitoring standardization requirements of the tunnel structures such as cave entrances, caves, caves, etc. The single -column chapter system introduces the construction of gas, connecting arch, small clean distance, and shallow biased tunnel, and attach construction points and cases. In addition, this book is full of graphics and text, which is combined with text description and standardized construction reference map. It is intuitive and easy to understand. It is suitable for dynamic design and construction along the highway along the river.

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