石太线电气化大乱段技术改造工程,各车站都有股道延长工程,因而引起路堑土石方的扩堑工程,娘子关车站东咽喉区石方是所有车站中石方施工较困难的地段之一。本段石方全长95米,计1,575立方米,高度2～14米,为石灰岩五级。石方路堑旁即为既有线路和道岔群;距石方35米处有扳道房一座;石方对面40 Stone Tai-line electrification chaos section of technological transformation projects, all stations have shares extension project, which led to the cutting of earth and rock cuttings, Niangziguan station east pharyngeal area stone side of all stations in the stone construction more difficult one of the lots. This section of stone full-length 95 meters, accounting for 1,575 cubic meters, a height of 2 to 14 meters, limestone five. Stone side of the road cut is the existing lines and turnout group; 35 meters away from the stone side of a switch room; opposite the stone 40