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A platform for research: civil engineering, architecture and urbanism
Deep foundation pit structure above subway tunnel and construction method thereof
The invention relates to a deep foundation pit structure above a subway tunnel and a construction method thereof, and relates to the technical filed of deep foundation pits. The deep foundation pit structure comprises a soil layer and a subway tunnel arranged in the soil layer, a pile foundation is arranged in the soil layer, an underpinning beam is poured at the upper end of the pile foundation,a raft is arranged on the underpinning beam, and a shockproof and water proof layer is arranged on the lower plane of the raft. Retaining walls are arranged on the deep foundation pit structure, the inner side walls of the retaining walls abut against the raft, and supporting beams are arranged between the inner side walls. A plurality of separation plates which are distributed in the length direction of the supporting beams are arranged on the raft, each separation plate is located between the two retaining walls which are symmetrical to each other, each separation plate is vertically arranged and perpendicular to the supporting beams, supporting rods are correspondingly divided into a plurality of outer supporting rods, and two ends of each outer supporting rod are correspondingly connected with the corresponding retaining walls or the separation plates. The deep foundation pit structure has the effect of improving the stability of the supporting beams.
本发明涉及一种地铁隧道上方的深基坑结构及其施工方法，涉及深基坑技术领域，其包括土层和设置在土层内的地铁隧道，土层内设置有桩基，桩基的上端浇筑有托换梁，托换梁的上方设置有筏板，筏板的下平面设置有防震防水层，深基坑结构设置有挡土墙，挡土墙内侧壁与筏板抵触且内侧壁之间设置有支撑梁，筏板上设置有若干道支撑梁长度方向排布的隔离板，各隔离板位于两堵互相对称的挡土墙之间，各隔离板竖直设置且与支撑梁相垂直，各支撑杆均分割为若干根外撑杆，各外撑杆的两端分别与相应的挡土墙或隔离板连接。本发明具有提高支撑梁稳定性的效果。
Deep foundation pit structure above subway tunnel and construction method thereof
The invention relates to a deep foundation pit structure above a subway tunnel and a construction method thereof, and relates to the technical filed of deep foundation pits. The deep foundation pit structure comprises a soil layer and a subway tunnel arranged in the soil layer, a pile foundation is arranged in the soil layer, an underpinning beam is poured at the upper end of the pile foundation,a raft is arranged on the underpinning beam, and a shockproof and water proof layer is arranged on the lower plane of the raft. Retaining walls are arranged on the deep foundation pit structure, the inner side walls of the retaining walls abut against the raft, and supporting beams are arranged between the inner side walls. A plurality of separation plates which are distributed in the length direction of the supporting beams are arranged on the raft, each separation plate is located between the two retaining walls which are symmetrical to each other, each separation plate is vertically arranged and perpendicular to the supporting beams, supporting rods are correspondingly divided into a plurality of outer supporting rods, and two ends of each outer supporting rod are correspondingly connected with the corresponding retaining walls or the separation plates. The deep foundation pit structure has the effect of improving the stability of the supporting beams.
本发明涉及一种地铁隧道上方的深基坑结构及其施工方法，涉及深基坑技术领域，其包括土层和设置在土层内的地铁隧道，土层内设置有桩基，桩基的上端浇筑有托换梁，托换梁的上方设置有筏板，筏板的下平面设置有防震防水层，深基坑结构设置有挡土墙，挡土墙内侧壁与筏板抵触且内侧壁之间设置有支撑梁，筏板上设置有若干道支撑梁长度方向排布的隔离板，各隔离板位于两堵互相对称的挡土墙之间，各隔离板竖直设置且与支撑梁相垂直，各支撑杆均分割为若干根外撑杆，各外撑杆的两端分别与相应的挡土墙或隔离板连接。本发明具有提高支撑梁稳定性的效果。
Deep foundation pit structure above subway tunnel and construction method thereof
一种地铁隧道上方的深基坑结构及其施工方法
LI YONGWEN (author) / XU HUAYONG (author) / CHEN ZHUANGBIAO (author) / YU DAN (author) / WAN XIA (author) / LIN SHAOPENG (author)
2020-06-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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