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A platform for research: civil engineering, architecture and urbanism
Oblique crossing jacking construction method for continuous porous ultra-low frame bridge
The invention discloses an oblique crossing jacking construction method for a continuous porous ultra-low frame bridge. The oblique crossing jacking construction method comprises the following steps that S1, railway line overhead reinforcing operation is completed; s2, while the step S1 is carried out, a working pit is excavated in one side of the railway line, a sliding plate and a lubricating isolation layer are constructed on the inner bottom surface of the working pit, and a backup pile is constructed; s3, the frame bridges are prefabricated on the lubricating isolation layer; s4, jacking equipment is installed between the frame bridges and the backup piles; s5, firstly, the first frame bridge and the fourth frame bridge on the two sides are synchronously jacked through jacking equipment, and after jacking is conducted in place, the second frame bridge and the third frame bridge in the middle are synchronously jacked; s6, the transition sections between the frame bridges and the transition sections with earthwork collapse on the two sides are densely filled with concrete, and the upper portions of the frame bridges are backfilled with coarse sand and ballast; and S7, the jacking equipment is dismantled, and the railway line is recovered. According to the invention, the influence on the existing railway line can be reduced while the balanced operation of the jacking equipment can be ensured.
本发明公开了一种连续多孔超低位框架桥斜交顶进施工方法，包括以下步骤：S1、完成铁路线路架空加固作业；S2、在进行步骤S1的同时，在铁路线路一侧开挖工作坑，在工作坑内底面施作滑板和润滑隔离层，并施作后备桩；S3、在润滑隔离层上预制各所述框架桥；S4、在各所述框架桥和后备桩之间安装顶进设备；S5、首先通过顶进设备同步顶进两侧的1号框架桥和4号框架桥，顶进到位后，再同步顶进中部的2号框架桥和3号框架桥；S6、对各所述框架桥之间及两侧出现土方坍塌的过渡段采用混凝土填充密实，各框架桥上部采用粗砂及道碴回填；S7、拆除顶进设备，恢复铁路线路。本发明能够保证顶进设备均衡作业的同时，减少对既有铁路线路影响。
Oblique crossing jacking construction method for continuous porous ultra-low frame bridge
The invention discloses an oblique crossing jacking construction method for a continuous porous ultra-low frame bridge. The oblique crossing jacking construction method comprises the following steps that S1, railway line overhead reinforcing operation is completed; s2, while the step S1 is carried out, a working pit is excavated in one side of the railway line, a sliding plate and a lubricating isolation layer are constructed on the inner bottom surface of the working pit, and a backup pile is constructed; s3, the frame bridges are prefabricated on the lubricating isolation layer; s4, jacking equipment is installed between the frame bridges and the backup piles; s5, firstly, the first frame bridge and the fourth frame bridge on the two sides are synchronously jacked through jacking equipment, and after jacking is conducted in place, the second frame bridge and the third frame bridge in the middle are synchronously jacked; s6, the transition sections between the frame bridges and the transition sections with earthwork collapse on the two sides are densely filled with concrete, and the upper portions of the frame bridges are backfilled with coarse sand and ballast; and S7, the jacking equipment is dismantled, and the railway line is recovered. According to the invention, the influence on the existing railway line can be reduced while the balanced operation of the jacking equipment can be ensured.
本发明公开了一种连续多孔超低位框架桥斜交顶进施工方法，包括以下步骤：S1、完成铁路线路架空加固作业；S2、在进行步骤S1的同时，在铁路线路一侧开挖工作坑，在工作坑内底面施作滑板和润滑隔离层，并施作后备桩；S3、在润滑隔离层上预制各所述框架桥；S4、在各所述框架桥和后备桩之间安装顶进设备；S5、首先通过顶进设备同步顶进两侧的1号框架桥和4号框架桥，顶进到位后，再同步顶进中部的2号框架桥和3号框架桥；S6、对各所述框架桥之间及两侧出现土方坍塌的过渡段采用混凝土填充密实，各框架桥上部采用粗砂及道碴回填；S7、拆除顶进设备，恢复铁路线路。本发明能够保证顶进设备均衡作业的同时，减少对既有铁路线路影响。
Oblique crossing jacking construction method for continuous porous ultra-low frame bridge
连续多孔超低位框架桥斜交顶进施工方法
HAN XINWEI (author) / LUO HUASONG (author) / SHANG CAIXIA (author) / LIU QIANGGUO (author) / XIA QIANG (author)
2023-05-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Bridge continuous jacking system and jacking construction method
| European Patent Office | 2023