国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
2期
43-46,26
,共5页
换轨大修%动车%抖车%轨道结构%螺栓扭矩%弹条%胶垫%水平%轨向%车轮磨耗
換軌大脩%動車%抖車%軌道結構%螺栓扭矩%彈條%膠墊%水平%軌嚮%車輪磨耗
환궤대수%동차%두차%궤도결구%라전뉴구%탄조%효점%수평%궤향%차륜마모
rail-changing repair%motor train%car-shaking phenomenon%structure of the track%torsion of the bolt%springy band%rubber cushion%level%orientation of the track%wear and tear of the track
针对京广线换轨大修后,动车横向高频振动所引发的抖车问题,进行了现场调查和针对性的试验。全面分析了换轨、放散、大机作业等各项施工对抖车的影响,在排除钢轨出厂初始不平顺因素的前提下,认为导致抖车的原因主要有：轨距控制范围过小,造成轨向病害峰值小但波长短,形成多波轨向;轨枕螺栓扭矩过大,造成弹条、胶垫失效变形,水平变化频繁;现场作业方式不正确等。对此采取了针对性的措施,取得了良好的整治效果。
針對京廣線換軌大脩後,動車橫嚮高頻振動所引髮的抖車問題,進行瞭現場調查和針對性的試驗。全麵分析瞭換軌、放散、大機作業等各項施工對抖車的影響,在排除鋼軌齣廠初始不平順因素的前提下,認為導緻抖車的原因主要有：軌距控製範圍過小,造成軌嚮病害峰值小但波長短,形成多波軌嚮;軌枕螺栓扭矩過大,造成彈條、膠墊失效變形,水平變化頻繁;現場作業方式不正確等。對此採取瞭針對性的措施,取得瞭良好的整治效果。
침대경엄선환궤대수후,동차횡향고빈진동소인발적두차문제,진행료현장조사화침대성적시험。전면분석료환궤、방산、대궤작업등각항시공대두차적영향,재배제강궤출엄초시불평순인소적전제하,인위도치두차적원인주요유：궤거공제범위과소,조성궤향병해봉치소단파장단,형성다파궤향;궤침라전뉴구과대,조성탄조、효점실효변형,수평변화빈번;현장작업방식불정학등。대차채취료침대성적조시,취득료량호적정치효과。
In order to solve the car-shaking problem caused by the locomotive horizontal high-frequency vibration after the railchanging repair of the Beijing-Guangzhou Railway,an on-the-spot investigation and corresponding experiments are made.An all-round analysis is made of the impact of the car-shaking problem resulting from the change of rails,diffusion,the operation of large machinery and other construction processes.After excluding the factor of the initial rail irregularity in manufacturing,it can be concluded that the car-shaking phenomenon is chiefly caused by the following factors ： the control range of the track gauge being too small,which results in the peak values of the disease in the track orientation being small and the wavelength being short,thus forming the multiple-wave orientation of the track;the torsion of the bolts for sleepers being too great,causing the springy bands and rubber cushions to become ineffective and to be deformed;level changes being too frequent;construction operations at the site being incorrect,etc.With the above-mentioned factors taken into account and corresponding measures taken,very good tackling effects are achieved.
