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Rapid unearthing method for deep foundation pit provided with inner support
A rapid unearthing method for a deep foundation pit provided with inner supports comprises the steps that a first construction area and a second construction area are divided, after the last inner supporting beam at the bottom of the foundation pit is constructed, the inner supporting beams at least comprise opposite supporting beams located in the middle of the foundation pit, a bridge crossing plate is erected on the opposite supporting beams, earthwork at the bottom of the foundation pit except the position under the opposite supporting beams is excavated, and the first construction area and the second construction area are constructed. The method comprises the following steps: carrying out large-area earthwork excavation and unearthing in a first construction area, carrying out mechanical excavation to reach a position above a base elevation, then carrying out manual excavation and leveling to reach the base elevation, carrying out earthwork excavation and unearthing in a second construction area after earthwork construction in the first construction area is completed, backfilling an unearthing lane in the second construction area, and carrying out manual soil cleaning in the second construction area. According to the construction method, the bridge crossing plate is arranged, passing is carried out from the high position, key lines are constructed preferentially, the influence of rainy seasons is reduced, the earth excavation efficiency is improved, and the excavation construction period is shortened through the arrangement of the bridge crossing plate, passing is carried out from the high position, and key lines are constructed preferentially.
一种设有内支撑深基坑的快速出土方法，包括：划分第一施工区和第二施工区，在施工完成基坑底部最后一道内支撑梁后，所述内支撑梁至少包括位于基坑中间的对撑梁，在对撑梁上架设过桥板，开挖基坑底部除所述对撑梁正下方的土方，即进行第一施工区大面积土方开挖及出土，机械开挖至基底标高以上后再通过人工开挖整平至基底标高，待第一施工区土方施工完成后，再进行第二施工区土方开挖及出土，在第二施工区回填出土车道，第二施工区通过人工清土，使用汽车吊将余土吊运至坑外，利用所述过桥板和出土车道对第一施工区和第二施工区内进行收土和清土，本发明通过设置过桥板，从高处通行，优先施工关键线路，减少雨季影响，提高土方开挖效率，节省开挖工期。
Rapid unearthing method for deep foundation pit provided with inner support
A rapid unearthing method for a deep foundation pit provided with inner supports comprises the steps that a first construction area and a second construction area are divided, after the last inner supporting beam at the bottom of the foundation pit is constructed, the inner supporting beams at least comprise opposite supporting beams located in the middle of the foundation pit, a bridge crossing plate is erected on the opposite supporting beams, earthwork at the bottom of the foundation pit except the position under the opposite supporting beams is excavated, and the first construction area and the second construction area are constructed. The method comprises the following steps: carrying out large-area earthwork excavation and unearthing in a first construction area, carrying out mechanical excavation to reach a position above a base elevation, then carrying out manual excavation and leveling to reach the base elevation, carrying out earthwork excavation and unearthing in a second construction area after earthwork construction in the first construction area is completed, backfilling an unearthing lane in the second construction area, and carrying out manual soil cleaning in the second construction area. According to the construction method, the bridge crossing plate is arranged, passing is carried out from the high position, key lines are constructed preferentially, the influence of rainy seasons is reduced, the earth excavation efficiency is improved, and the excavation construction period is shortened through the arrangement of the bridge crossing plate, passing is carried out from the high position, and key lines are constructed preferentially.
一种设有内支撑深基坑的快速出土方法，包括：划分第一施工区和第二施工区，在施工完成基坑底部最后一道内支撑梁后，所述内支撑梁至少包括位于基坑中间的对撑梁，在对撑梁上架设过桥板，开挖基坑底部除所述对撑梁正下方的土方，即进行第一施工区大面积土方开挖及出土，机械开挖至基底标高以上后再通过人工开挖整平至基底标高，待第一施工区土方施工完成后，再进行第二施工区土方开挖及出土，在第二施工区回填出土车道，第二施工区通过人工清土，使用汽车吊将余土吊运至坑外，利用所述过桥板和出土车道对第一施工区和第二施工区内进行收土和清土，本发明通过设置过桥板，从高处通行，优先施工关键线路，减少雨季影响，提高土方开挖效率，节省开挖工期。
Rapid unearthing method for deep foundation pit provided with inner support
一种设有内支撑深基坑的快速出土方法
HUANG ZHIMING (author) / LI HAIYIN (author) / HUANG YONGMING (author) / LIN CHONG (author) / YU HONGTAO (author)
2022-05-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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