A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cable-stayed supporting structure system outside pit and construction method thereof
The invention discloses a cable-stayed supporting structure system outside a pit and a construction method thereof. A supporting structure comprises a fender post, a top beam, a main support, a secondary support, a stand column and inhaul cables, wherein the top beam is arranged at the top of the fender post, the main support vertically stretches across the side wall of the foundation pit and extends out of the foundation pit, and the main support and the top beam are arranged at the same elevation; the inhaul cables are symmetrically distributed on two sides of the main support extending out of the pit, one end is anchored on the top beam, the other end is anchored at the end part of the main support outside the pit, and the inhaul cables need to be tensioned to a certain prestress before the foundation pit is excavated, so that a cable-stayed supporting structure system outside the pit is formed, and water and soil pressure outside the pit is jointly resisted. The cable-stayed supporting system outside the pit has the advantages that the rigidity is large, the span is large, the deformation control capacity is high, construction is convenient, the inhaul cables can be recycled, the coverage rate of the inner supports in the pit can be greatly reduced, and the purposes of improving the supporting safety of the foundation pit, shortening the construction period, saving the construction cost and the like are achieved.
本发明公开了一种坑外斜拉式支撑结构体系及其施工方法，支撑结构包括围护桩、冠梁、主撑、次撑、立柱，以及拉索；围护桩顶部设有冠梁；主撑垂直横跨基坑侧壁并伸出坑外，主撑与冠梁设置在同一标高；拉索对称分布在伸出坑外的主撑两侧，一端锚固在冠梁上，另一端锚固在坑外主撑的端部；基坑开挖前拉索需进行张拉至一定的预应力；以此形成一种坑外斜拉式支撑结构体系，共同抵抗坑外水土压力。本发明的支撑体系具有刚度大、跨度大、控制变形能力强、施工方便、拉索可以回收再利用等优点，可以大幅减少坑内内支撑覆盖率，达到提高基坑支护安全、缩短施工工期、节省工程造价等目的。
Cable-stayed supporting structure system outside pit and construction method thereof
The invention discloses a cable-stayed supporting structure system outside a pit and a construction method thereof. A supporting structure comprises a fender post, a top beam, a main support, a secondary support, a stand column and inhaul cables, wherein the top beam is arranged at the top of the fender post, the main support vertically stretches across the side wall of the foundation pit and extends out of the foundation pit, and the main support and the top beam are arranged at the same elevation; the inhaul cables are symmetrically distributed on two sides of the main support extending out of the pit, one end is anchored on the top beam, the other end is anchored at the end part of the main support outside the pit, and the inhaul cables need to be tensioned to a certain prestress before the foundation pit is excavated, so that a cable-stayed supporting structure system outside the pit is formed, and water and soil pressure outside the pit is jointly resisted. The cable-stayed supporting system outside the pit has the advantages that the rigidity is large, the span is large, the deformation control capacity is high, construction is convenient, the inhaul cables can be recycled, the coverage rate of the inner supports in the pit can be greatly reduced, and the purposes of improving the supporting safety of the foundation pit, shortening the construction period, saving the construction cost and the like are achieved.
本发明公开了一种坑外斜拉式支撑结构体系及其施工方法，支撑结构包括围护桩、冠梁、主撑、次撑、立柱，以及拉索；围护桩顶部设有冠梁；主撑垂直横跨基坑侧壁并伸出坑外，主撑与冠梁设置在同一标高；拉索对称分布在伸出坑外的主撑两侧，一端锚固在冠梁上，另一端锚固在坑外主撑的端部；基坑开挖前拉索需进行张拉至一定的预应力；以此形成一种坑外斜拉式支撑结构体系，共同抵抗坑外水土压力。本发明的支撑体系具有刚度大、跨度大、控制变形能力强、施工方便、拉索可以回收再利用等优点，可以大幅减少坑内内支撑覆盖率，达到提高基坑支护安全、缩短施工工期、节省工程造价等目的。
Cable-stayed supporting structure system outside pit and construction method thereof
一种坑外斜拉式支撑结构体系及其施工方法
WU CHANGJIANG (author) / YU JUN (author) / PAN CHUNHUI (author) / LIU ZIQIU (author) / LI TENGFEI (author) / WANG GUOZHEN (author) / ZHANG WEI (author) / WANG SHENKAI (author)
2021-07-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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