摘要：【中文】本发明涉及一种近海填海区域运营地铁上方的地基加固措施方法，其步骤为：首先结合工程地质情况，在地铁隧道周边打设单排截水旋喷桩；在地铁保护区内实施井点降水，并加密降水井布置；降水后，在地铁保护区采用分段施工，每段先开挖两端的抗拔桩冠梁范围，再开挖中间盖板区域；在隧道两侧先进行抗拔灌注桩施工，再进行分段分层开挖；整条地铁线路保护区段抗浮结构施工完成后，卸除地铁线路两侧设计主槽上方的土体。本发明能够减少挖土施工导致地铁上方卸荷影响时间，加快门式抗浮结构形成时间，有效控制地铁结构变形，保证运营地铁线路的安全。 【EN】The invention relates to a method for reinforcing a foundation above an operation subway in an offshore sea reclamation area, which comprises the following steps: firstly, driving single-row water-intercepting rotary spraying piles at the periphery of a subway tunnel according to engineering geological conditions; well point dewatering is implemented in a subway protection area, and dewatering well arrangement is encrypted; after precipitation, adopting subsection construction in a subway protection area, firstly excavating uplift pile crown beam ranges at two ends of each section, and then excavating a middle cover plate area; firstly, carrying out uplift cast-in-place pile construction on two sides of the tunnel, and then carrying out sectional and layered excavation; and after the construction of the anti-floating structure of the whole subway line protection section is finished, soil bodies above the designed main grooves on the two sides of the subway line are removed. The invention can reduce the unloading influence time above the subway caused by excavation construction, accelerate the forming time of the door type anti-floating structure, effectively control the deformation of the subway structure and ensure the safety of operating subway lines.

摘要：【中文】本发明涉及一种液压全护筒旋挖桩施工中大粒径块石处理方法，其步骤为：当块石层分布浅且块石层不厚时，采用挖机小范围直接清除块石层，然后回填土方进行桩基施工；当块石层埋深或厚度在1～2m时，按以下步骤进行处理：当块石位于桩位中心位置时，先将护筒下压至块石层标高，安排工人进行人工清除；当块石仅有部分位于桩位内时，先采用护筒液压装置挤压块石，若不能将块石挤压出桩位时，则安排工人将位于桩位内的块石进行凿除；对于中小粒径块石，先采用旋挖机钻头反复取土，对粒径稍大的块石，安排工人在护筒的保护下使用吊车将块石从孔内取出。本发明为项目施工节省了时间，节约了成本，取得了经济、合理、实用的效果。 【EN】The invention relates to a method for treating large-particle-size rock blocks in hydraulic full-casing rotary pile digging construction, which comprises the following steps: when the block stone layer is shallow and not thick, directly removing the block stone layer in a small range by using an excavator, and then backfilling earth to carry out pile foundation construction; when the buried depth or the thickness of the block stone layer is 1-2 m, the treatment is carried out according to the following steps: when the block stone is positioned at the center of the pile position, the pile casing is pressed down to the elevation of the block stone layer, and workers are arranged to carry out manual removal; when only part of the block stone is positioned in the pile position, extruding the block stone by using a pile casing hydraulic device, and if the block stone cannot be extruded out of the pile position, arranging workers to chisel the block stone positioned in the pile position; for the rock blocks with small and medium grain sizes, a drill bit of the rotary excavating machine is adopted to repeatedly take soil, and for the rock blocks with larger grain sizes, workers are arranged to use a crane to take the rock blocks out of the holes under the protection of the protective cylinder. The invention saves time and cost for project construction, and achieves economic, reasonable and practical effects.