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发明公开
CN108130833A 沉降偏移无砟轨道的纠偏方法 有权

沉降偏移无砟轨道的纠偏方法
摘要：
本发明公开了一种沉降偏移无砟轨道的纠偏方法，包括以下步骤：步骤1)，确认轨道的沉降量和偏移量；步骤2)，切割轨道两侧的封闭层；步骤3)，在轨道施加顶推力的一侧浇筑反力墩、另一侧浇筑限位墩；步骤4)，在轨道板上布设注浆孔；步骤5)，安装顶推设备和注浆设备；步骤6)，对轨道施加横向顶推力；步骤7)，注浆抬升轨道；步骤8)，注浆填充底座板或支撑层下产生的孔隙。本发明的沉降偏移无砟轨道的纠偏方法在注浆抬升的同时，在轨道底座板一侧利用千斤顶施加横向顶推力，同步进行轨道竖向抬升和横向顶推施工，从而有效避免了横向顶推和竖向抬升分阶段施工而产生的相互影响，如横向顶推对轨道竖向位移产生影响，从而提高纠偏精度。
摘要（英）：

The invention discloses a deviation rectification method for a settlement offset ballastless track. The method comprises the following steps that 1, the settlement amount and offset of the track are determined; 2, sealing layers on the two sides of the track are cut; 3, a counter-force pier is poured on the side, where jacking thrust is applied, of the track, and a limiting pier is poured on the other side of the track; 4, grouting holes are formed in a track plate; 5, a pushing device and grouting equipment are installed; 6, transverse jacking thrust is applied to the track; 7, the track is subjected to grouting uplift; 8, a base plate or pores generated under a supporting layer are filled through grouting. According to the deviation rectification method for the settlement offset ballastless track, during grouting uplift, a jack is used on one side of the base plate of the track to applied the transverse jacking thrust, and vertical lifting and transverse pushing construction are synchronously conducted, so that mutual influences, such as influences of transverse pushing on vertical displacement of the track, generated during transverse pushing and vertical lifting staged construction are effectively avoided, and then the deviation rectification precision is improved.

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