Safe, fast, and precise construction of road and railway undercrossings!
The "HEP & JES method" is a non-excavation underpass construction method that allows for simultaneous execution of pavement protection work and main structure construction. Currently, there are over 130 construction achievements. <Construction Features> Due to continuous pulling towards a fixed position on the arrival side, the construction accuracy of element excavation is high, ensuring sufficient construction speed. Additionally, by selecting the appropriate excavation machine, it can adapt to various soil types. <Structural Features> Since the JES element serves as both the pavement protection work and the main structure, there is no need for separate installation of protective work, simplifying the process and minimizing the impact on the pavement. *For more details, please download the PDF or contact us.
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basic information
<HEP Method> This is a construction method for accurately and quickly advancing steel elements. It is classified into two types based on the pulling method: blade pulling type and blade pushing type. <JES Method> This is a construction method for building structures such as box-shaped frames using steel elements that have joints capable of transmitting force in the axial perpendicular direction. [Patents] ≫HEP Method ● Patent No. 3782808 ● Patent No. 5219859 ● Patent No. 5845148 ≫JES Method ● Patent No. 3188872 ● Patent No. 3483196 ● Patent No. 5209546 ● Patent No. 5209546 ● Patent No. 5335602 *For more details, please download the PDF or contact us.
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J-Tech Co., Ltd. specializes in "underpass construction," which involves building tunnels for roads and other infrastructure beneath railways and highways. Our company contributes to underground construction with our exceptional proprietary technology and has been active in domestic infrastructure development to date. Additionally, in response to the needs of the times, we are dedicated to ongoing technological development day and night, aiming to sustain our excellent technology.