Study on the Reducing Measures to Reduce the Influence of Culvert Extension on Existing Lines in Loess Regions

Due to the many constraint conditions, construction difficulties, and high control standards, impact of new line on existing lines, culvert extensions in widened sections loess areas has become a form railway projects. This work analyzes technical difficulties extension schemes based practical engineering case. A scheme provide protection against slight disturbances is determined, structure transition section filling are optimized. The rationality measures influence then studied monitoring data for each stage. results show that implementation disturbance little line, greatest during steel sheet pile (<0.5 mm). We symmetrically construct structures (transverse) (longitudinal transverse) effectively reduce differences deformation value between two sides at same level as line. upper side fluctuates with composite foundation shows an overall upward trend, while increases first decreases section, larger than section. gauge abruptly stage bottom plate, top splayed wall. settlement station nonlinearly increase height variation higher culvert.