Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-layer unbalanced foundation pit supporting method suitable for staged excavation
The invention discloses a multi-layer unbalanced supporting method suitable for staged excavation. The method comprises the steps that 1, firstly, an intercepting ditch is formed in the outer side ofthe top of a foundation pit on the flat ground; 2, a current-stage fender pile, a temporary stand column pile, a water stop jet grouting pile, a staged separation pile and a temporary steel pipe supporting column are constructed, and steel bars are fixed in a buttress beam on an early-stage main body structure top plate in an anchored mode; 3, slotting construction is carried out on a top beam ofthe foundation pit, pile head concrete is chiseled away, residues, floating soil and accumulated water are removed, and concrete is poured to the top beam and a primary support; 4, reserved soil massis excavated in a layered mode, and a waterproof layer and a bottom plate are constructed after the staged separation pile of the foundation pit is chiseled while being dug; 5, a concrete wale and a counter-force pier are poured, residual soil mass is excavated to the bottom of the foundation pit, and a waterproof layer and a residual bottom plate are constructed; 6, inclined struts, the counter-force pier and the supporting concrete wale are dismantled, then a residual side wall waterproof layer and a current-stage top plate are constructed, and the temporary steel pipe supporting column andthe primary support are dismantled; and 7, a current-stage main body structure top plate and a waterproof layer are constructed, backfilling and earthing are carried out, an internal structure is constructed, and the next process is entered.
一种适用于分期开挖的多层不平衡支护方法，首先平地在基坑顶外侧设置截水沟；第二步是施工本期围护桩、临时立柱桩、止水旋喷桩、分期分隔桩和临时钢管支柱,在前期主体结构顶板上的支墩梁内锚固钢筋；第三步是掏槽施工基坑冠梁，凿除桩头混凝土，清除残渣、浮土和积水，浇筑混凝土冠梁和第一道支撑；第四步是分层开挖预留土体，并随挖随凿基坑分期分隔桩后施工防水层和底板；第五步是浇筑砼腰梁和反力墩,开挖剩余土体至基坑底，施工防水层和剩余底板；第六步是拆除斜撑、反力墩和支撑砼腰梁，再施工剩余侧墙防水层及本期顶板，拆除临时钢管立柱和第一道支撑；第七步是施工本期主体结构顶板、防水层，回填覆土，施工内部结构,进入下一工序。
Multi-layer unbalanced foundation pit supporting method suitable for staged excavation
The invention discloses a multi-layer unbalanced supporting method suitable for staged excavation. The method comprises the steps that 1, firstly, an intercepting ditch is formed in the outer side ofthe top of a foundation pit on the flat ground; 2, a current-stage fender pile, a temporary stand column pile, a water stop jet grouting pile, a staged separation pile and a temporary steel pipe supporting column are constructed, and steel bars are fixed in a buttress beam on an early-stage main body structure top plate in an anchored mode; 3, slotting construction is carried out on a top beam ofthe foundation pit, pile head concrete is chiseled away, residues, floating soil and accumulated water are removed, and concrete is poured to the top beam and a primary support; 4, reserved soil massis excavated in a layered mode, and a waterproof layer and a bottom plate are constructed after the staged separation pile of the foundation pit is chiseled while being dug; 5, a concrete wale and a counter-force pier are poured, residual soil mass is excavated to the bottom of the foundation pit, and a waterproof layer and a residual bottom plate are constructed; 6, inclined struts, the counter-force pier and the supporting concrete wale are dismantled, then a residual side wall waterproof layer and a current-stage top plate are constructed, and the temporary steel pipe supporting column andthe primary support are dismantled; and 7, a current-stage main body structure top plate and a waterproof layer are constructed, backfilling and earthing are carried out, an internal structure is constructed, and the next process is entered.
一种适用于分期开挖的多层不平衡支护方法，首先平地在基坑顶外侧设置截水沟；第二步是施工本期围护桩、临时立柱桩、止水旋喷桩、分期分隔桩和临时钢管支柱,在前期主体结构顶板上的支墩梁内锚固钢筋；第三步是掏槽施工基坑冠梁，凿除桩头混凝土，清除残渣、浮土和积水，浇筑混凝土冠梁和第一道支撑；第四步是分层开挖预留土体，并随挖随凿基坑分期分隔桩后施工防水层和底板；第五步是浇筑砼腰梁和反力墩,开挖剩余土体至基坑底，施工防水层和剩余底板；第六步是拆除斜撑、反力墩和支撑砼腰梁，再施工剩余侧墙防水层及本期顶板，拆除临时钢管立柱和第一道支撑；第七步是施工本期主体结构顶板、防水层，回填覆土，施工内部结构,进入下一工序。
Multi-layer unbalanced foundation pit supporting method suitable for staged excavation
一种适用于分期开挖的多层不平衡基坑支护方法
HU ZHIQIANG (Autor:in) / SUN HAOLIN (Autor:in) / TANG DAKUN (Autor:in) / XIA MINGTAN (Autor:in) / LIANG SHUIBIN (Autor:in) / LIU YONGLIN (Autor:in) / CHEN MING (Autor:in)
17.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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