A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for bridge pile foundation close to subway tunnel
The invention discloses a construction method of a bridge pile foundation close to a subway tunnel, and relates to the technical field of bridge pile foundations, the method comprises the following steps: according to the buried depth of a subway tunnel bottom plate, the influence distance and the safety distance between the pile foundation position and the subway tunnel are determined, and the influence distance is smaller than the safety distance; if the pile foundation hole position is within the influence distance, synchronously sinking the sleeve to the target hole depth in the drilling process, and filling pile foundation concrete; if the hole position of the pile foundation is between the influence distance and the safe distance, the casing pipe is synchronously sunk to the target hole depth in the drilling process, and the casing pipe is synchronously pulled out when pile foundation concrete is poured; and if the pile foundation hole position is beyond the safe distance, a sleeve is buried to the set depth, drilling is conducted to the target hole depth, and pile foundation concrete is poured. And only when the pile foundation hole site is within the influence distance, the sleeve is not pulled out. And when the pile foundation hole site is beyond the influence distance, a sleeve pulling-out and recycling method is adopted. The problems that in the prior art, a sleeve is not recycled, and cost is high are solved.
本发明公开了一种临近地铁隧道的桥梁桩基施工方法，涉桥梁桩基础技术领域，该方法包括以下步骤：根据地铁隧道底板埋深，确定桩基位置与地铁隧道间的影响距离和安全距离，所述影响距离小于安全距离；若桩基孔位在影响距离以内，在钻进的过程中同步下沉套管至目标孔深，灌注桩基混凝土；若桩基孔位在影响距离与安全距离之间，在钻进的过程中同步下沉套管至目标孔深，并在灌注桩基混凝土时同步拔除套管；若桩基孔位在安全距离以外，埋设套管至设定深度，钻进至目标孔深，灌注桩基混凝土。只有桩基孔位在影响距离以内时，套管不拔除。桩基孔位在影响距离以外时，均采取套管拔除回收的方法。解决了现有技术中套管没有回收，成本高昂的问题。
Construction method for bridge pile foundation close to subway tunnel
The invention discloses a construction method of a bridge pile foundation close to a subway tunnel, and relates to the technical field of bridge pile foundations, the method comprises the following steps: according to the buried depth of a subway tunnel bottom plate, the influence distance and the safety distance between the pile foundation position and the subway tunnel are determined, and the influence distance is smaller than the safety distance; if the pile foundation hole position is within the influence distance, synchronously sinking the sleeve to the target hole depth in the drilling process, and filling pile foundation concrete; if the hole position of the pile foundation is between the influence distance and the safe distance, the casing pipe is synchronously sunk to the target hole depth in the drilling process, and the casing pipe is synchronously pulled out when pile foundation concrete is poured; and if the pile foundation hole position is beyond the safe distance, a sleeve is buried to the set depth, drilling is conducted to the target hole depth, and pile foundation concrete is poured. And only when the pile foundation hole site is within the influence distance, the sleeve is not pulled out. And when the pile foundation hole site is beyond the influence distance, a sleeve pulling-out and recycling method is adopted. The problems that in the prior art, a sleeve is not recycled, and cost is high are solved.
本发明公开了一种临近地铁隧道的桥梁桩基施工方法，涉桥梁桩基础技术领域，该方法包括以下步骤：根据地铁隧道底板埋深，确定桩基位置与地铁隧道间的影响距离和安全距离，所述影响距离小于安全距离；若桩基孔位在影响距离以内，在钻进的过程中同步下沉套管至目标孔深，灌注桩基混凝土；若桩基孔位在影响距离与安全距离之间，在钻进的过程中同步下沉套管至目标孔深，并在灌注桩基混凝土时同步拔除套管；若桩基孔位在安全距离以外，埋设套管至设定深度，钻进至目标孔深，灌注桩基混凝土。只有桩基孔位在影响距离以内时，套管不拔除。桩基孔位在影响距离以外时，均采取套管拔除回收的方法。解决了现有技术中套管没有回收，成本高昂的问题。
Construction method for bridge pile foundation close to subway tunnel
一种临近地铁隧道的桥梁桩基施工方法
CHEN GANG (author) / SHI JUNBIAO (author) / KU YILIE (author) / ZUO WENBIN (author) / YAN NING (author) / QUAN LEI (author) / ZHUANG SHIXIN (author) / FAN JUNSONG (author) / MU YUNPENG (author) / LIU MINGYONG (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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