A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for dismantling main pier of old bridge near river
The invention belongs to the field of bridge demolition, and particularly discloses a riverside old bridge main pier demolition method which comprises the following steps that S1, a main pier demolition operation area is formed in a riverside cofferdam of a main pier arrangement area; s2, waterproof treatment is conducted on the outer side of the main pier dismantling operation area; s3, water in the main pier dismantling operation area is drained, and then backfilling is conducted; s4, a foundation pit is excavated on the peripheral side of the main pier arrangement area; s5, main pier stand columns and pile foundation concrete are sequentially broken till the preset dismantling height is reached, and meanwhile internal steel bars are cut; and S6, the foundation pit is backfilled after inspection and acceptance, and dismantling of the main pier is completed. According to the construction method, the steel sheet pile cofferdam is adopted to form the main pier dismantling operation area, a drainage backfilling mode is adopted, a safe and waterless working site is provided for main pier dismantling construction, the site is larger, the strength is higher, the main pier dismantling operation efficiency can be improved, and operation is safer.
本申请属于桥梁拆除领域，具体公开了一种临河老桥主墩拆除方法，其包括如下步骤：S1：在主墩设置区域的临河侧围堰形成主墩拆除作业区域；S2：对所述主墩拆除作业区域的外侧进行防水处理；S3：排出所述主墩拆除作业区域内部的水后进行回填；S4：在所述主墩设置区域的周侧开挖基坑；S5：依次破除主墩立柱和桩基混凝土，破除直至预定拆除高度，同时切割内部钢筋；S6：检查验收后回填所述基坑，完成主墩拆除。通过本申请，采用钢板桩围堰形成主墩拆除作业区域，采用排水回填的方式，为主墩拆除施工提供安全、无水的工作场地，且场地更大、强度更高，能够提高主墩拆除作业效率且作业更加安全。
Method for dismantling main pier of old bridge near river
The invention belongs to the field of bridge demolition, and particularly discloses a riverside old bridge main pier demolition method which comprises the following steps that S1, a main pier demolition operation area is formed in a riverside cofferdam of a main pier arrangement area; s2, waterproof treatment is conducted on the outer side of the main pier dismantling operation area; s3, water in the main pier dismantling operation area is drained, and then backfilling is conducted; s4, a foundation pit is excavated on the peripheral side of the main pier arrangement area; s5, main pier stand columns and pile foundation concrete are sequentially broken till the preset dismantling height is reached, and meanwhile internal steel bars are cut; and S6, the foundation pit is backfilled after inspection and acceptance, and dismantling of the main pier is completed. According to the construction method, the steel sheet pile cofferdam is adopted to form the main pier dismantling operation area, a drainage backfilling mode is adopted, a safe and waterless working site is provided for main pier dismantling construction, the site is larger, the strength is higher, the main pier dismantling operation efficiency can be improved, and operation is safer.
本申请属于桥梁拆除领域，具体公开了一种临河老桥主墩拆除方法，其包括如下步骤：S1：在主墩设置区域的临河侧围堰形成主墩拆除作业区域；S2：对所述主墩拆除作业区域的外侧进行防水处理；S3：排出所述主墩拆除作业区域内部的水后进行回填；S4：在所述主墩设置区域的周侧开挖基坑；S5：依次破除主墩立柱和桩基混凝土，破除直至预定拆除高度，同时切割内部钢筋；S6：检查验收后回填所述基坑，完成主墩拆除。通过本申请，采用钢板桩围堰形成主墩拆除作业区域，采用排水回填的方式，为主墩拆除施工提供安全、无水的工作场地，且场地更大、强度更高，能够提高主墩拆除作业效率且作业更加安全。
Method for dismantling main pier of old bridge near river
一种临河老桥主墩拆除方法
CHEN XINGHE (author) / HU YUNCHAO (author) / ZHOU BIN (author) / FENG HEJIE (author) / SU YANZHOU (author) / WANG XUANJUN (author) / WEI XIUZHEN (author) / ZHANG WENJIE (author) / WANG GUANGLI (author)
2024-11-19
Patent
Electronic Resource
Chinese
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