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Construction method of foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support
The invention relates to a construction method of a foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support. The construction method comprises the steps that (1) a water stop enclosure body and a top beam are constructed; (2) excavation construction is conducted on a first excavation area; (3) upper inclined anchor rods, lower inclined anchor rods and supports are installed and constructed; (4) excavation construction is conducted on a second excavation area; (5) primary driving construction is carried out on first steel sheet piles; (6) stay cable is installed; (7) excavation construction is conducted on a third excavation area; (8) a second steel sheet pile is driven and a first recyclable anchor rod is installed and constructed; (9) a fourth excavation area is excavated and a second recyclable anchor rod is installed and constructed; (10) a first reinforced concrete bottom plate is constructed; (11) a first inclined strut is installed and constructed; (12) a fifth excavation area is excavated and a second inclined strut is installed and constructed; and (13) excavation construction is carried out on a sixth excavation area. The construction method of the foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support has the beneficial effects that a stacked steel sheet pile structure with a cable-stayed supporting system for resisting lateral displacement is arranged on the outer side of a soil retaining area, so that the soil retaining area has the advantages of being small in occupied space, large in lateral displacement resisting rigidity and high in stability.
本发明涉及留土反压斜拉撑组合式的基坑支护结构的施工方法，包括步骤：1)止水围护体、冠梁施工；2)开挖区一开挖施工；3)上斜锚杆、下斜锚杆、支座安装施工；4)开挖区二开挖施工；5)钢板桩一打设施工；6)斜拉索安装；7)开挖区三开挖施工；8)钢板桩二打设和可回收锚杆一安装施工；9)开挖区四开挖和可回收锚杆二安装施工；10)钢筋混凝土底板一施工；11)斜撑一安装施工；12)开挖区五开挖和斜撑二安装施工；13)开挖区六开挖施工。本发明的有益效果是：本发明在留土区外侧，设置具有斜拉撑体系抗侧移的叠加钢板桩结构，使留土区具有占用空间小、抗侧移刚度大、稳定性高的优点。
Construction method of foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support
The invention relates to a construction method of a foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support. The construction method comprises the steps that (1) a water stop enclosure body and a top beam are constructed; (2) excavation construction is conducted on a first excavation area; (3) upper inclined anchor rods, lower inclined anchor rods and supports are installed and constructed; (4) excavation construction is conducted on a second excavation area; (5) primary driving construction is carried out on first steel sheet piles; (6) stay cable is installed; (7) excavation construction is conducted on a third excavation area; (8) a second steel sheet pile is driven and a first recyclable anchor rod is installed and constructed; (9) a fourth excavation area is excavated and a second recyclable anchor rod is installed and constructed; (10) a first reinforced concrete bottom plate is constructed; (11) a first inclined strut is installed and constructed; (12) a fifth excavation area is excavated and a second inclined strut is installed and constructed; and (13) excavation construction is carried out on a sixth excavation area. The construction method of the foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support has the beneficial effects that a stacked steel sheet pile structure with a cable-stayed supporting system for resisting lateral displacement is arranged on the outer side of a soil retaining area, so that the soil retaining area has the advantages of being small in occupied space, large in lateral displacement resisting rigidity and high in stability.
本发明涉及留土反压斜拉撑组合式的基坑支护结构的施工方法，包括步骤：1)止水围护体、冠梁施工；2)开挖区一开挖施工；3)上斜锚杆、下斜锚杆、支座安装施工；4)开挖区二开挖施工；5)钢板桩一打设施工；6)斜拉索安装；7)开挖区三开挖施工；8)钢板桩二打设和可回收锚杆一安装施工；9)开挖区四开挖和可回收锚杆二安装施工；10)钢筋混凝土底板一施工；11)斜撑一安装施工；12)开挖区五开挖和斜撑二安装施工；13)开挖区六开挖施工。本发明的有益效果是：本发明在留土区外侧，设置具有斜拉撑体系抗侧移的叠加钢板桩结构，使留土区具有占用空间小、抗侧移刚度大、稳定性高的优点。
Construction method of foundation pit supporting structure combining soil retaining, back pressure and cable-stayed support
留土反压斜拉撑组合式的基坑支护结构的施工方法
WANG XINQUAN (author) / XU HUAXIN (author) / QI CHANGGUANG (author) / DIAO HONGGUO (author)
2021-12-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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