— A high speed railway must support fast moving vehicles and have strict low deformation requirements However many high speed railways encounter the problem of abnormal subgrade deformation caused by expansive rocks In this study the Neijiangbei station of the Chengdu Chongqing high speed railway in Southwest China where the
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— There are currently more than 25 active construction sites in the Valley with the Authority having also fully environmentally cleared 422 miles of the high speed rail program from the Bay Area to Los Angeles County For the latest on high speed rail construction visit
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— The Chinese railway dates back approximately 130 years The first railway line Wu Song was built in 1876 in Shanghai with a length of and a track gauge of 762mm The first railway built by Chinese engineers is the Jingzhang Railway Beijing to Zhangjiakou finished between 1905 and 1909 with a total length of a small
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— The Guiyang Nanning High Speed Railway runs through karst terrain in Guizhou and Guangxi which is characterized by caves sinkholes cliffs and steep sided hills Construction of the railway
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— Based on this the finite element models of China railway track structure CRTS II plate high speed railway simple supported girder bridge and CRH2C high speed train model are developed and
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— China s high speed railway HSR construction industry has been experiencing a golden period of opportunities in the recent decades Due to the necessity of protecting arable lands and the
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— The new Zhengzhou Xi an high speed railway line for passenger traffic hereinafter referred to as the Zhengxi High Speed Railway has a full length of 458 km and a design speed of 350 km·h −1 It passes through a loess area for a considerable distance necessitating 28 loess tunnels totaling 53 km in length
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— Introduction With the development of high speed railway construction in China the demand for precast concrete members has increased rapidly Due to the shortage of river sand and increased awareness of environmental protection river sand has been replaced by manufactured sand sea sand and desert sand for concrete preparation [1]
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— Various requirements such as stiffness strength buckling and thickness were studied to evaluate their influence in the choice of load carrying sandwich panels for high speed rail vehicles Then they were optimized using a finite element FE software achieving a mass saving of 30% [ 14 ]
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： Pavement cover plates are railway ancillary facilities which are designed to cover the cable trenches In recent years Ultra High Performance Fiber Reinforced Concrete UHPFRC has been encouraged to be applied for pavement cover plates production by
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— The Yinxi Railway is located in the western region of China As a high speed railway line connecting Yinchuan Xi an it is of great significance for the construction of transportation facilities in western China For cement fly ash gravel piles and cement soil compacted piles are used for the subgrade treatment method and reinforced cushions are
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— The spatial conflicts in the construction of high speed railways not only reduce project efficiency but also lead to serious accidents To address these key issues this paper presents a dynamic simulation method for constructions processes based on a virtual geographic environment This approach can facilitate the identification of conflicts
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