路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2011年
5期
112-114
,共3页
无砟轨道%纵连板%砂浆离析%换填
無砟軌道%縱連闆%砂漿離析%換填
무사궤도%종련판%사장리석%환전
ballastless track%vertical slab%mortar segregation%replacement
无砟轨道具有良好的力学性能,在高速铁路上得到了广泛应用,但随着运营时间及运量的增长,无砟轨道砂浆层偶有出现离析、破损现象,影响了线路质量和列车运行的平稳性。针对遂渝高速铁路纵连板式无砟轨道,在不影响列车运行的情况下,对砂浆层进行换填的不同轨道板支撑方案进行了分析比较,结果表明：采用尺寸为50 mm×100 mm×100 mm的6个混凝土块支撑方案较佳。
無砟軌道具有良好的力學性能,在高速鐵路上得到瞭廣汎應用,但隨著運營時間及運量的增長,無砟軌道砂漿層偶有齣現離析、破損現象,影響瞭線路質量和列車運行的平穩性。針對遂渝高速鐵路縱連闆式無砟軌道,在不影響列車運行的情況下,對砂漿層進行換填的不同軌道闆支撐方案進行瞭分析比較,結果錶明：採用呎吋為50 mm×100 mm×100 mm的6箇混凝土塊支撐方案較佳。
무사궤도구유량호적역학성능,재고속철로상득도료엄범응용,단수착운영시간급운량적증장,무사궤도사장층우유출현리석、파손현상,영향료선로질량화열차운행적평은성。침대수투고속철로종련판식무사궤도,재불영향열차운행적정황하,대사장층진행환전적불동궤도판지탱방안진행료분석비교,결과표명：채용척촌위50 mm×100 mm×100 mm적6개혼응토괴지탱방안교가。
Ballastless track has been widely applied in high-speed railway due to its good mechanical properties.However,along with the operating time and traffic volume increased,the mortar layer of ballastless track may be segregated and damaged occasionally,which affected the stability of railway quality and train movement.Against the vertical-slab ballastless track in Suining-Chongqing High-speed Railway,under the condition not affecting train movement,different slab supporting programs for mortar replacement are analyzed through comparison.The results show that 6 concrete blocks of 50 mm×100 mm×100 mm are preferred for supporting.
