Safe and fast construction of small cross-section structures under roads and railways!!
The "COMPASS method" is a construction technique developed to safely and quickly build small cross-sectional structures. 【Construction Features】 By inserting protective steel plates into the ground in advance, excavation occurs within the area enclosed by the protective steel plates, which reduces the risk of collapse and allows for safe construction. *For more details, please download the PDF or contact us.
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basic information
This is a method for constructing a small cross-section box culvert under a railway or road by cutting the ground around the periphery of a planned structure using ground cutting wire, followed by protective work from the rear, and then building the culvert without excavation inside. It is classified into TYPE1 to TYPE4 based on the construction method. 【Patent】 ● Patent No. 3969582 ● Patent No. 5300368 *For more details, please download the PDF or contact us.
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Company information
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.