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A platform for research: civil engineering, architecture and urbanism
Ballastless track roadbed transition section filler replacement structure and construction method thereof
The invention provides a ballastless track roadbed transition section filler replacement structure and a construction method thereof. The replacement structure is supported below a track supporting layer and comprises a pre-supporting structure and an enclosure structure, wherein the pre-supporting structure comprises two sets of supporting piles on the two sides of a track, a cross beam and a longitudinal beam; the cross beam and the longitudinal beam are connected between the tops of the two sets of supporting piles; cushion plates are detachably connected to the two ends of the cross beam and the supporting piles; the enclosure structure comprises side walls, a top plate and a bottom plate; and limiting pieces are arranged between the top plate of the enclosure structure and the supporting layer, During construction, through the arrangement of the pre-supporting structure, the bearing force of the upper structure of the track during subsequent underground excavation and replacementcan be ensured. Due to the arrangement of the enclosure structure, the lateral stress, the top stress and the bottom stress of an excavation section are guaranteed. Due to the arrangement of the limiting pieces between the enclosure structure and the supporting layers and cushion plates on the cross beams, the height and the plane position of the track can be adjusted, and the smoothness of a lineis restored. The construction structure is easy to install, field construction is facilitated, an original upper rail does not need to be dismantled, and the engineering cost and the construction time are saved.
本发明提供的一种无砟轨道路基过渡段填料置换结构及其施工方法，其中置换结构支设在轨道支承层下方，包括预支撑结构和围护结构，预支撑结构包括轨道两侧的两组支撑桩、两组支撑桩顶部间连接的横梁和纵梁；横梁两端部与支撑桩可拆卸连接有垫板，围护结构包含侧墙、顶板和底板，围护结构的顶板与支承层间有限位件；施工时，通过预支撑结构的设置可以保证后续暗挖换填时轨道上部结构的承力，而围护结构的设置则保证了开挖段的侧向、顶部和底部受力，在围护结构与支承层间限位件和横梁上垫板的设置，能使调整轨道高低和平面位置，恢复线路平顺性；本发明施工结构安装简易，利于现场施工，且不需要拆除原有上部轨道，节省了工程造价和施工时间。
Ballastless track roadbed transition section filler replacement structure and construction method thereof
The invention provides a ballastless track roadbed transition section filler replacement structure and a construction method thereof. The replacement structure is supported below a track supporting layer and comprises a pre-supporting structure and an enclosure structure, wherein the pre-supporting structure comprises two sets of supporting piles on the two sides of a track, a cross beam and a longitudinal beam; the cross beam and the longitudinal beam are connected between the tops of the two sets of supporting piles; cushion plates are detachably connected to the two ends of the cross beam and the supporting piles; the enclosure structure comprises side walls, a top plate and a bottom plate; and limiting pieces are arranged between the top plate of the enclosure structure and the supporting layer, During construction, through the arrangement of the pre-supporting structure, the bearing force of the upper structure of the track during subsequent underground excavation and replacementcan be ensured. Due to the arrangement of the enclosure structure, the lateral stress, the top stress and the bottom stress of an excavation section are guaranteed. Due to the arrangement of the limiting pieces between the enclosure structure and the supporting layers and cushion plates on the cross beams, the height and the plane position of the track can be adjusted, and the smoothness of a lineis restored. The construction structure is easy to install, field construction is facilitated, an original upper rail does not need to be dismantled, and the engineering cost and the construction time are saved.
本发明提供的一种无砟轨道路基过渡段填料置换结构及其施工方法，其中置换结构支设在轨道支承层下方，包括预支撑结构和围护结构，预支撑结构包括轨道两侧的两组支撑桩、两组支撑桩顶部间连接的横梁和纵梁；横梁两端部与支撑桩可拆卸连接有垫板，围护结构包含侧墙、顶板和底板，围护结构的顶板与支承层间有限位件；施工时，通过预支撑结构的设置可以保证后续暗挖换填时轨道上部结构的承力，而围护结构的设置则保证了开挖段的侧向、顶部和底部受力，在围护结构与支承层间限位件和横梁上垫板的设置，能使调整轨道高低和平面位置，恢复线路平顺性；本发明施工结构安装简易，利于现场施工，且不需要拆除原有上部轨道，节省了工程造价和施工时间。
Ballastless track roadbed transition section filler replacement structure and construction method thereof
一种无砟轨道路基过渡段填料置换结构及其施工方法
LI ZHONGGUO (author) / ZHANG QIANLI (author) / CHEN FENG (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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