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A platform for research: civil engineering, architecture and urbanism
Construction method for shield tunneling machine to laterally penetrate through existing pile foundation in short distance
The invention discloses a construction method for a shield tunneling machine to laterally penetrate through an existing pile foundation in a short distance. The construction method comprises the following construction methods that S1, a cast-in-situ bored pile is arranged between a bridge pile foundation and a tunnel structure; the working process of the cast-in-situ bored pile comprises the steps that before pile foundation construction, paying off is conducted on site to determine the position of a pile foundation, a fender pile is led out, a pile casing is embedded according to the released pile position, the position of a drilling machine is adjusted after the pile casing is embedded, the position of the pile foundation is measured again after the drilling machine is in place, the elevation of the pile casing is measured, and whether the fender pile deviates or not is checked. Finally, a drilling machine drills, a reinforcement cage is placed, and concrete is poured; according to the construction method for the shield to laterally penetrate through the existing pile foundation in the close range, a fender pile is composed of a circular pipe part and a pointed cone part fixedly connected to the bottom of the circular pipe part, a force application mechanism is composed of a stand column, a tamping part and a pointed cone head, and a stabbing rod can further penetrate into soil after the circular pipe part and the pointed cone part are inserted into the ground in cooperation with the arrangement of a stabilizing mechanism; and the stability of the fender pile can be improved.
本发明公开了一种盾构近距离侧穿既有桩基施工方法，包括以下施工方法：S1：在桥梁桩基与隧道结构之间钻孔灌注桩；其中钻孔灌注桩的工作流程包括：桩基施工前在现场放线确定桩基位置，并引出护桩、根据放出的桩位埋设护筒、埋设好护筒后调整钻机位置、钻机就位后再复测桩基位置，并测出护筒标高、再检查护桩是否偏位，最后钻机钻进、安放钢筋笼并浇筑混凝土；该盾构近距离侧穿既有桩基施工方法中的护桩由圆管部以及固定连接于圆管部底部的尖锥部组成，通过立柱、夯击部、尖锥头组成施力机构，配合稳定机构的设置可以在圆管部和尖锥部插入地面后进一步将扎入杆穿入土壤中，可增加该护桩的稳定性。
Construction method for shield tunneling machine to laterally penetrate through existing pile foundation in short distance
The invention discloses a construction method for a shield tunneling machine to laterally penetrate through an existing pile foundation in a short distance. The construction method comprises the following construction methods that S1, a cast-in-situ bored pile is arranged between a bridge pile foundation and a tunnel structure; the working process of the cast-in-situ bored pile comprises the steps that before pile foundation construction, paying off is conducted on site to determine the position of a pile foundation, a fender pile is led out, a pile casing is embedded according to the released pile position, the position of a drilling machine is adjusted after the pile casing is embedded, the position of the pile foundation is measured again after the drilling machine is in place, the elevation of the pile casing is measured, and whether the fender pile deviates or not is checked. Finally, a drilling machine drills, a reinforcement cage is placed, and concrete is poured; according to the construction method for the shield to laterally penetrate through the existing pile foundation in the close range, a fender pile is composed of a circular pipe part and a pointed cone part fixedly connected to the bottom of the circular pipe part, a force application mechanism is composed of a stand column, a tamping part and a pointed cone head, and a stabbing rod can further penetrate into soil after the circular pipe part and the pointed cone part are inserted into the ground in cooperation with the arrangement of a stabilizing mechanism; and the stability of the fender pile can be improved.
本发明公开了一种盾构近距离侧穿既有桩基施工方法，包括以下施工方法：S1：在桥梁桩基与隧道结构之间钻孔灌注桩；其中钻孔灌注桩的工作流程包括：桩基施工前在现场放线确定桩基位置，并引出护桩、根据放出的桩位埋设护筒、埋设好护筒后调整钻机位置、钻机就位后再复测桩基位置，并测出护筒标高、再检查护桩是否偏位，最后钻机钻进、安放钢筋笼并浇筑混凝土；该盾构近距离侧穿既有桩基施工方法中的护桩由圆管部以及固定连接于圆管部底部的尖锥部组成，通过立柱、夯击部、尖锥头组成施力机构，配合稳定机构的设置可以在圆管部和尖锥部插入地面后进一步将扎入杆穿入土壤中，可增加该护桩的稳定性。
Construction method for shield tunneling machine to laterally penetrate through existing pile foundation in short distance
一种盾构近距离侧穿既有桩基施工方法
WANG SHAOYONG (author) / WANG ZHONGZHAO (author) / WANG ZHENHUA (author) / PENG YONG (author) / GONG YANG (author) / ZHAO HONGWEI (author) / HAN PEIXUN (author) / XU HAILONG (author) / JIN WANGYUAN (author) / CHEN TAO (author)
2024-04-12
Patent
Electronic Resource
Chinese
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