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A platform for research: civil engineering, architecture and urbanism
Comprehensive earth excavation method for large-scale cover-excavation top-down T-shaped transfer subway station
The invention discloses a comprehensive earth excavation method for a large-scale cover-excavation top-down T-shaped transfer subway station. The method includes the steps that an enclosure structure and piles of the transfer subway station are constructed, and a cover plate is placed on the upper end part of each pile; a negative layer of earthwork below the cover plate is excavated, and the negative layer of earthwork is divided into a plurality of excavation areas; the design entrance and exit of a negative first floor of the transfer subway station is transformed into a lateral soil outlet, and a vertical soil outlet is reserved in the cover plate; a trestle is arranged in an overhead mode, the excavated earthwork is piled around the trestle through an excavating machine, the earthwork is lifted to an earthmoving vehicle through a long-arm excavator on the trestle, and the earthwork is transported outwards through the lateral earth outlet or the vertical earth outlet; after excavation of the earth of the negative first layer is completed, the trestle is dismantled, and a main body structure of the negative first layer is constructed; and the steps are repeated until the construction of each layer of space is completed. The comprehensive earth excavation method for the large-scale cover-excavation top-down T-shaped transfer subway station has the advantages that the vertical and lateral soil outlets are arranged, and the muck transfer efficiency is improved through the method of fully utilizing the entrance and exit and matching with the construction trestle.
本发明公开了一种大型盖挖逆作T型换乘地铁车站综合土方开挖方法，包括以下步骤：施作换乘地铁车站的围护结构以及桩柱，将盖板置于各桩柱的上端部；开挖盖板下的负一层土方，将负一层土方划分为若干开挖区域；将换乘地铁车站负一层的设计出入口改造为侧向出土口，并在盖板上预留垂直出土口；架空布置栈桥，挖土机械将挖出的土方堆在栈桥的周围，栈桥上的长臂挖机将土方提升至运土车辆上，并经侧向出土口或所述垂直出土口外运土方；完成负一层土方的开挖后，拆除栈桥，施工负一层的主体结构；如此往复，直至完成各层空间的施工。本发明的优点是:垂直加侧向出土口的设置，以及通过充分利用出入口并配以施工栈桥的方法，提高了渣土倒运的效率。
Comprehensive earth excavation method for large-scale cover-excavation top-down T-shaped transfer subway station
The invention discloses a comprehensive earth excavation method for a large-scale cover-excavation top-down T-shaped transfer subway station. The method includes the steps that an enclosure structure and piles of the transfer subway station are constructed, and a cover plate is placed on the upper end part of each pile; a negative layer of earthwork below the cover plate is excavated, and the negative layer of earthwork is divided into a plurality of excavation areas; the design entrance and exit of a negative first floor of the transfer subway station is transformed into a lateral soil outlet, and a vertical soil outlet is reserved in the cover plate; a trestle is arranged in an overhead mode, the excavated earthwork is piled around the trestle through an excavating machine, the earthwork is lifted to an earthmoving vehicle through a long-arm excavator on the trestle, and the earthwork is transported outwards through the lateral earth outlet or the vertical earth outlet; after excavation of the earth of the negative first layer is completed, the trestle is dismantled, and a main body structure of the negative first layer is constructed; and the steps are repeated until the construction of each layer of space is completed. The comprehensive earth excavation method for the large-scale cover-excavation top-down T-shaped transfer subway station has the advantages that the vertical and lateral soil outlets are arranged, and the muck transfer efficiency is improved through the method of fully utilizing the entrance and exit and matching with the construction trestle.
本发明公开了一种大型盖挖逆作T型换乘地铁车站综合土方开挖方法，包括以下步骤：施作换乘地铁车站的围护结构以及桩柱，将盖板置于各桩柱的上端部；开挖盖板下的负一层土方，将负一层土方划分为若干开挖区域；将换乘地铁车站负一层的设计出入口改造为侧向出土口，并在盖板上预留垂直出土口；架空布置栈桥，挖土机械将挖出的土方堆在栈桥的周围，栈桥上的长臂挖机将土方提升至运土车辆上，并经侧向出土口或所述垂直出土口外运土方；完成负一层土方的开挖后，拆除栈桥，施工负一层的主体结构；如此往复，直至完成各层空间的施工。本发明的优点是:垂直加侧向出土口的设置，以及通过充分利用出入口并配以施工栈桥的方法，提高了渣土倒运的效率。
Comprehensive earth excavation method for large-scale cover-excavation top-down T-shaped transfer subway station
大型盖挖逆作T型换乘地铁车站综合土方开挖方法
ZHANG XU (author) / WANG NINGBO (author) / AN HUI (author) / XU YOUJUN (author) / HUANG ZHENGDONG (author) / AN HUANHUAN (author) / ZHANG BO (author) / HU PENGJU (author) / GUO SHIHAO (author) / ZHENG CHAOQIANG (author)
2021-08-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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