Analysis on Foundation Type Selection of Transmission Lines in Various Regions of Shandong Province
Based on the characteristics of different foundation types of transmission lines,adopting the whole process mechanized construction method,considering the terrain and geology of Shandong region are comprehensively considered,through technical and economic comparative analysis of the selection of foundation types in different terrains (plains,hills,mountains,etc.),this paper gives recommended a foundation type selection scheme.In plain areas,under waterless con-ditions,when the foundation force is less than 500 kN and greater than 800 kN,it is recommended to excavate the founda-tion;When the foundation force is between 500 kN and 800 kN,it is recommended to use cast-in-place pile foundation;When the load exceeds 800 kN,the foundation size exceeds 5.5 m× 5.5 m (length × width),it is recommended to use cast-in-place pile foundations if the width and burial depth exceed 3.5 m.In areas with 0 meters of water,cast-in-place pile foundations are more in line with environmental and water conservation requirements,and it is recommended to use cast-in-place pile foundations.In hilly and mountainous areas,for ordinary soil areas and soft rock areas where the foundation force is less than 260 kN and the soil cover is greater than 5.0 m,it is recommended to excavate hole foundations;When the soil cover in ordinary soil areas and soft rock areas with a foundation force greater than 300 kN is less than 5.0 m,it is recommended to use rock anchor rod foundations and excavation foundations.In mountainous hard rock areas,rock anchor foundation,micro pile foundation,and excavation foundation are recommended based on different rock types.In areas with crisscrossing rivers and marshes,it is recommended to select cast-in-place pile foundation.
foundation typeplain areashillsmountain areascrisscrossing rivers andmarshes
万方数据
维普
