Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deep foundation pit secondary excavation and support construction method
The invention discloses a deep foundation pit secondary excavation and support construction method. According to the deep foundation pit secondary excavation and support construction method, common excavating equipment and transport vehicles are adopted, the natural stable slope ratio is adopted, only simple supporting is needed, and the space of an excavating site is reasonably utilized; excavating equipment construction shortcuts and excavating material transfer points are temporarily built on the slope surface of a foundation pit, excavating materials can be conveyed out of the foundation pit while multiple excavating equipment perform relay excavating in turn, and the construction cost is low; meanwhile, the splicing type supporting structure is high in erecting and dismantling speed, lower-layer earthwork can be directly excavated without waiting for strength after erecting is completed, the splicing type supporting structure can be recycled, the size can be adjusted, the application range is wide, and a triangular supporting frame enables the supporting structure to have high structural strength; and L-shaped protection plates can transmit transverse force borne by side plates to a bottom plate through the supporting frame, stress is more uniform, and the safety problems such as collapse of the slope surface during excavation can be effectively solved by arranging the steps on the slope surface of the foundation pit.
本发明公开了一种深基坑二次开挖及支护施工方法。本发明采用常用挖掘设备和运输车辆，采用自然稳定坡比，仅需简单的支护，合理利用开挖场地空间，通过在基坑坡面临时修建挖掘设备施工便道以及挖料中转点，多台挖掘设备轮流接力开挖的同时还可将开挖料输送出基坑外，施工成本低，同时拼接式的支护结构架设和拆除速度快，架设完毕后不需要等待强度即可直接开挖下层土方，而且可以循环使用，而且可以调整尺寸，适用范围广，而且三角形支撑架使该支护结构具有较高的结构强度，L型的防护板可以将侧板所受到横向的力通过支撑架传递至底板处，受力更加均匀，在基坑坡面设置台阶能够有效避免开挖时坡面的塌落等安全问题。
Deep foundation pit secondary excavation and support construction method
The invention discloses a deep foundation pit secondary excavation and support construction method. According to the deep foundation pit secondary excavation and support construction method, common excavating equipment and transport vehicles are adopted, the natural stable slope ratio is adopted, only simple supporting is needed, and the space of an excavating site is reasonably utilized; excavating equipment construction shortcuts and excavating material transfer points are temporarily built on the slope surface of a foundation pit, excavating materials can be conveyed out of the foundation pit while multiple excavating equipment perform relay excavating in turn, and the construction cost is low; meanwhile, the splicing type supporting structure is high in erecting and dismantling speed, lower-layer earthwork can be directly excavated without waiting for strength after erecting is completed, the splicing type supporting structure can be recycled, the size can be adjusted, the application range is wide, and a triangular supporting frame enables the supporting structure to have high structural strength; and L-shaped protection plates can transmit transverse force borne by side plates to a bottom plate through the supporting frame, stress is more uniform, and the safety problems such as collapse of the slope surface during excavation can be effectively solved by arranging the steps on the slope surface of the foundation pit.
本发明公开了一种深基坑二次开挖及支护施工方法。本发明采用常用挖掘设备和运输车辆，采用自然稳定坡比，仅需简单的支护，合理利用开挖场地空间，通过在基坑坡面临时修建挖掘设备施工便道以及挖料中转点，多台挖掘设备轮流接力开挖的同时还可将开挖料输送出基坑外，施工成本低，同时拼接式的支护结构架设和拆除速度快，架设完毕后不需要等待强度即可直接开挖下层土方，而且可以循环使用，而且可以调整尺寸，适用范围广，而且三角形支撑架使该支护结构具有较高的结构强度，L型的防护板可以将侧板所受到横向的力通过支撑架传递至底板处，受力更加均匀，在基坑坡面设置台阶能够有效避免开挖时坡面的塌落等安全问题。
Deep foundation pit secondary excavation and support construction method
一种深基坑二次开挖及支护施工方法
LI ZHIQIANG (Autor:in) / LIU CHANGFU (Autor:in) / SHAO ZHONGGUANG (Autor:in) / CUI JIJING (Autor:in) / ZHANG QINHE (Autor:in) / HOU YINGBIN (Autor:in) / TIAN LU (Autor:in)
30.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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