Abstract: According to one aspect of the present invention, a hot-rolled steel sheet and a manufacturing method for same may be provided, wherein the hot-rolled steel sheet has excellent yield strength, vibration damping ratio, electrical resistivity, and low-temperature toughness, and thus has properties suitable for use in a hyper train tube.

Abstract: Disclosed is a mechanically stabilized earth (MSE) wall system for preventing collapse of a retaining wall. The MSE wall system includes: at least two pillars installed on a front surface of the retaining wall; a plurality of screens installed on a rear surface of the pillar and arranged along a vertical direction to intercept a space between the adjacent pillars; at least a connector installed between the adjacent pillars to preserve a space between the adjacent pillars and prevent the screens from being separated into a front direction; and at least a front panel spaced from a front surface of the screen. Since deformation of the screen which supports the load of the backfilling soil is not transferred to the front panel, it is possible to provide excellent appearance.

Abstract: Disclosed is a mechanically stabilized earth (MSE) wall system for preventing collapse of a retaining wall. The MSE wall system includes: at least two pillars installed on a front surface of the retaining wall; a plurality of screens installed on a rear surface of the pillar and arranged along a vertical direction to intercept a space between the adjacent pillars; at least a connector installed between the adjacent pillars to preserve a space between the adjacent pillars and prevent the screens from being separated into a front direction; and at least a front panel spaced from a front surface of the screen. Since deformation of the screen which supports the load of the backfilling soil is not transferred to the front panel, it is possible to provide excellent appearance.