Results 1 to 10 of about 2,023 (265)

Influence Law of Foundation Pit Excavation on Stress of Surrounding Tunnel Bolt

Applied Sciences (Switzerland), 2022
Due to the existence of a tunnel next to the foundation pit, the soil surrounding the foundation pit deforms into the foundation pit due to the excavation unloading during the process of foundation pit excavation, which causes the deformation of the ...
Hang Lin
exaly   +3 more sources

Deformation analysis and safety assessment of existing metro tunnels affected by excavation of a foundation pit

Underground Space (China), 2021
The excavation of a foundation pit considerably affects the adjacent structures and underground pipelines owing to the change in the stress state of the surrounding soil, resulting in deformation.
Zhuangfu Zhao
exaly   +3 more sources

Influence of Foundation Pit Excavation and Precipitation on Settlement of Surrounding Buildings [PDF]

Advances in Civil Engineering, 2021
With the large-scale development of urban underground space, foundation pit engineering has become one of the important geotechnical engineering topics in urban construction.
Hongming Wei
doaj   +2 more sources

Numerical Analysis of Diaphragm Wall Deformation and Surface Settlement Caused by Dewatering and Excavation at Center and End Positions in a Subway Foundation Pit

Buildings
Metro foundation pits are important components of urban infrastructure projects. Dewatering and excavation are essential stages in foundation pit construction; however, this process can significantly induce groundwater drawdown, as well as diaphragm wall
Minliang Chi, Guohui Feng, Kaifang Yang   +2 more
exaly   +3 more sources

Deformation Stability Response of Adjacent Subway Tunnels considering Excavation and Support of Foundation Pit

Lithosphere, 2022
Since the safety and stability of the original tunnel structure are easily affected by the adjacent foundation pit excavation, it is strongly necessary to study the deformation evolution of tunnels during the adjacent foundation pit excavation.
Baohua Liu, Hang Lin, Yifan Chen, Jingshuo Liu, Chun Guo   +4 more
doaj   +1 more source

Study on the Influence of Excavation of Superlarge and Ultra-Deep Foundation Pits on the Pile Foundation of Existing Viaducts

Advances in Civil Engineering, 2023
The rapid development of urban above- and underground transportation has brought an increasing number of deep foundation pit projects that close to existing urban viaducts.
Wancai Zhong, Nianyong Huang, Nan Nie, Haibin Ding, Feng Gao   +4 more
doaj   +1 more source

Numerical Simulation of Seepage and Deformation in Excavation of a Deep Foundation Pit under Water-Rich Fractured Intrusive Rock

Geofluids, 2021
Water is one of the major risk sources in the excavation of deep-large foundation pits in a water-rich area. The presence of intrusive broken diorite porphyrite in the stratum aggravates the risk level of deep foundation pits.
Changfeng Yuan, Zhenhui Hu, Zhen Zhu, Zijin Yuan, Yanxiang Fan, Hui Guan, Liang Li   +6 more
doaj   +1 more source

Case Study on the Deformation Coupling Effect of a Deep Foundation Pit Group in a Coastal Soft Soil Area

Applied Sciences, 2022
Simultaneous construction of adjacent projects may lead to emergencies in a foundation pit group, which significantly affects the deformation and safety of foundation pits. In this study, the deformation characteristics of a deep foundation pit group and
Shangrong Chen, Jifei Cui, Fayun Liang
doaj   +1 more source

The Application of Foundation Pit Monitoring Technology to the Excavation [PDF]

MATEC Web of Conferences, 2015
The foundation pit monitoring plays an important role in the foundation pit supporting projects especially in those deep foundation pit projects. Through the whole monitoring of the foundation pit construction from the excavation to the backfill, we can learn about the forcing and deforming process of the foundation pit supporting system, and grasp the
Qiu Jin, Li Fei
openaire   +2 more sources

Influence of Foundation Pit Excavation on Tunnels at Different Locations

Shock and Vibration, 2022
To evaluate the tunnel deformation law and soil stress distribution between foundation pit excavation and tunnel in different locations, numerical analyses using the hypoplastic model are conducted based on reported centrifuge model tests. Two cases are designed to investigate the effects of the foundation pit excavation on the deformation of existing ...
Chengwu Wang, Huasheng Sun, Jihua Zhang, Yu Lu   +3 more
openaire   +2 more sources