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Construction method for ultra-large rectangular continuous open caisson underground station in soft soil stratum
The invention discloses a construction method for an ultra-large rectangular continuous open caisson underground station in a soft soil stratum. The construction method comprises the following steps of first-stage construction; simultaneously constructing one end well and the open caisson with an odd number of intervals from the end well, and constructing from the cast-in-place pile to plain concrete bottom sealing; second-stage construction; the other open caissons are constructed at the same time till plain concrete bottom sealing is achieved, and meanwhile the open caisson internal structure in the first stage is constructed; constructing a connecting section well; connecting sections between the open caissons are constructed, and meanwhile, the internal structure of the open caisson in the second stage is constructed; during open caisson construction, each open caisson is of a rectangular frame structure. The comprehensive construction method which is clear in thought, economical and reasonable is provided for the key technology for building the ultra-large rectangular open caisson group station in the soft soil stratum, namely construction is conducted in a skip construction mode, and the method has the advantages of being safe, reliable, easy to operate and implement, good in construction quality, fast in construction progress, small in surrounding rock disturbance and the like.
本发明公开了一种软土地层超大矩形连续沉井地下车站施工方法，包括以下步骤：第一阶段施工；同时施工其中一个端头井和与该端头井间隔为奇数个的沉井，且从自灌注桩一直施工到素砼封底；第二阶段施工；对其余沉井同时进行施工，且一直施工到素砼封底，同时施工第一阶段中沉井内部结构；连接段井施工；对沉井之间的连接段进行施工，同时施工第二阶段中沉井内部结构；在沉井施工时，每个沉井均采用矩形框架结构。针对软土地层超大矩形沉井群车站建造关键技术提供了一种思路清晰、经济合理的综合施工方法，即采用跳仓施工的方式进行施工，具有安全可靠、易于操作实施、施工质量好、施工进度快、围岩扰动小等特点。
Construction method for ultra-large rectangular continuous open caisson underground station in soft soil stratum
The invention discloses a construction method for an ultra-large rectangular continuous open caisson underground station in a soft soil stratum. The construction method comprises the following steps of first-stage construction; simultaneously constructing one end well and the open caisson with an odd number of intervals from the end well, and constructing from the cast-in-place pile to plain concrete bottom sealing; second-stage construction; the other open caissons are constructed at the same time till plain concrete bottom sealing is achieved, and meanwhile the open caisson internal structure in the first stage is constructed; constructing a connecting section well; connecting sections between the open caissons are constructed, and meanwhile, the internal structure of the open caisson in the second stage is constructed; during open caisson construction, each open caisson is of a rectangular frame structure. The comprehensive construction method which is clear in thought, economical and reasonable is provided for the key technology for building the ultra-large rectangular open caisson group station in the soft soil stratum, namely construction is conducted in a skip construction mode, and the method has the advantages of being safe, reliable, easy to operate and implement, good in construction quality, fast in construction progress, small in surrounding rock disturbance and the like.
本发明公开了一种软土地层超大矩形连续沉井地下车站施工方法，包括以下步骤：第一阶段施工；同时施工其中一个端头井和与该端头井间隔为奇数个的沉井，且从自灌注桩一直施工到素砼封底；第二阶段施工；对其余沉井同时进行施工，且一直施工到素砼封底，同时施工第一阶段中沉井内部结构；连接段井施工；对沉井之间的连接段进行施工，同时施工第二阶段中沉井内部结构；在沉井施工时，每个沉井均采用矩形框架结构。针对软土地层超大矩形沉井群车站建造关键技术提供了一种思路清晰、经济合理的综合施工方法，即采用跳仓施工的方式进行施工，具有安全可靠、易于操作实施、施工质量好、施工进度快、围岩扰动小等特点。
Construction method for ultra-large rectangular continuous open caisson underground station in soft soil stratum
一种软土地层超大矩形连续沉井地下车站施工方法
ZHANG HAO (author) / SHEN YONGFENG (author) / DI HUIJIE (author) / FANG YUZHONG (author) / ZHANG WENMING (author) / GUO DEFU (author) / YANG CHEN (author) / LI QIANG (author) / PENG HAIKU (author)
2024-04-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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