Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Subway deep foundation pit over-excavation and under-excavation measurement control construction method
The invention discloses a metro deep foundation pit over-excavation and under-excavation measurement control construction method. The method comprises the steps that a measured metro deep foundation pit is preliminarily excavated; measuring devices are installed at all positions of the side wall of the foundation pit subjected to preliminary excavation; debugging the measuring device; the measuring device forms a closed light curtain wall with an externally expanded design excavation surface, so as to realize the control of over-excavation and under-excavation; through checking the light curtain distance from the excavation face of the retaining structure to the measuring device, the back-break condition is confirmed, positive and negative size marks are made for the back-break part, and follow-up excavation construction is guided; according to the method, the foundation pit limit condition can be effectively measured, accurate excavation construction of excavation equipment on the foundation pit limit position can be effectively controlled, the structural size of the foundation pit is ensured, resource waste is reduced, and the excavation efficiency of the foundation pit is improved.
本发明公开了一种地铁深基坑超欠挖测量控制施工方法，包括对测定的地铁深基坑进行初步开挖；将测量装置安装在初步开挖的基坑侧壁的各个位置；对测量装置进行调试；使得测量装置形成闭合的设计开挖面外扩的光线幕墙，以实现对超欠挖的控制；通过核定围护结构开挖面至测量装置的光幕距离，确认超欠挖情况，并对超欠挖部分做好正负尺寸标记，指导后续开挖施工；对开挖的基坑周边进行喷锚支护，而后再次复合支护边界的步骤，该方法能够有效测量基坑限界情况，并且有效控制挖掘设备对基坑限界位置的准确挖掘施工，确保基坑的结构尺寸，减少资源浪费以及提升基坑开挖效率。
Subway deep foundation pit over-excavation and under-excavation measurement control construction method
The invention discloses a metro deep foundation pit over-excavation and under-excavation measurement control construction method. The method comprises the steps that a measured metro deep foundation pit is preliminarily excavated; measuring devices are installed at all positions of the side wall of the foundation pit subjected to preliminary excavation; debugging the measuring device; the measuring device forms a closed light curtain wall with an externally expanded design excavation surface, so as to realize the control of over-excavation and under-excavation; through checking the light curtain distance from the excavation face of the retaining structure to the measuring device, the back-break condition is confirmed, positive and negative size marks are made for the back-break part, and follow-up excavation construction is guided; according to the method, the foundation pit limit condition can be effectively measured, accurate excavation construction of excavation equipment on the foundation pit limit position can be effectively controlled, the structural size of the foundation pit is ensured, resource waste is reduced, and the excavation efficiency of the foundation pit is improved.
本发明公开了一种地铁深基坑超欠挖测量控制施工方法，包括对测定的地铁深基坑进行初步开挖；将测量装置安装在初步开挖的基坑侧壁的各个位置；对测量装置进行调试；使得测量装置形成闭合的设计开挖面外扩的光线幕墙，以实现对超欠挖的控制；通过核定围护结构开挖面至测量装置的光幕距离，确认超欠挖情况，并对超欠挖部分做好正负尺寸标记，指导后续开挖施工；对开挖的基坑周边进行喷锚支护，而后再次复合支护边界的步骤，该方法能够有效测量基坑限界情况，并且有效控制挖掘设备对基坑限界位置的准确挖掘施工，确保基坑的结构尺寸，减少资源浪费以及提升基坑开挖效率。
Subway deep foundation pit over-excavation and under-excavation measurement control construction method
一种地铁深基坑超欠挖测量控制施工方法
ZHANG QIAOBING (Autor:in) / DU FUYING (Autor:in) / AN GANGJIAN (Autor:in) / PAN FEI (Autor:in) / LUO BIN (Autor:in) / LU ZHIYONG (Autor:in) / HU SHENG (Autor:in) / WEI LONGLONG (Autor:in)
03.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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