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Weiyuan Zhu, Jiaqi Cheng, Yutao Pang, Hongbin An, Junpeng Zou, Jie Ren and Cheng Zhang
This study proposes a new form of underground diaphragm wall foundation with hexagonal sections, called the grid pile foundation (GPF), which is used for long-span bridges. To investigate the lateral bearing capacity characteristics of the integrated pil...
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Qianwei Xu, Jinli Xie, Zili Sun, Linhai Lu and Hangfei Yu
Circular diaphragm walls are increasingly being used in ultra-deep foundation pits due to their arch-shaped bearing system, which provides reasonable structural support. The trench walls that form the circular ground connection wall are typically double-...
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Jianfeng Qi, Guohua Zhang, Yuyong Jiao, Luyi Shen, Fei Zheng, Junpeng Zou and Peng Zhang
The ground surface deformation induced by shield tunnels passing through enclosure structures of existing tunnels is a particular underground construction scenario that has been encountered in Wuhan Metro Line 12 engineering cases in China. Timely ground...
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Xingsheng Zhang, Mengke Hu, Xing Chen, Jinyu Dong and Shipeng Liu
The waterproof curtain plays an important role in the dewatering of a deep foundation pit. Recognition of the depth of the waterproof curtain inserted into the confined aquifer at different depths may help control ground subsidence due to dewatering, but...
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Quan Cheng, Zhengwei Li, Shaowei Deng, Haibo Jiang, Yueqiang Tian and Jiayue Geng
In this paper, a bending test of a precast ultra-high-performance concrete (UHPC) diaphragm slab was carried out. The test revealed that the flexural failure process of specimens under the action of a positive bending moment can be divided into three sta...
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Shengqiang Li, Jin Wang, Zhiwei Yu, Yadong Li and Hongyan Guo
Steel formworks are widely used in prefabricated buildings thanks to their good characteristics. With the rapid development of engineering construction in China, steel formwork concrete structures, characterized by convenient construction, good seismic p...
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Dengqun Wang, Shuaihua Ye and Jun Zhang
The construction of an urban metro will inevitably involve deep excavation. Risk assessment before deep excavation, risk reduction measures, and real-time monitoring during excavation can effectively ensure the safety of deep excavation. Taking the deep ...
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Victor Amador Diaz, Scott E. Snyder and Amy L. Vavere
Vacuum pump wear is the most prevalent failure mode of the IBA Synthera® automated radiochemistry system. Rebuilding or replacing the pump causes equipment downtime and increases the radiation exposure of the service personnel. We built a dedicated test ...
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Jifei Cui, Zhenkun Yang and Rafig Azzam
An ultra-deep L-shape foundation pit in a coastal area has recently been constructed and monitored. The project overview, geological conditions, excavation sequence and monitoring scheme are introduced in detail. The deformation of the retaining structur...
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Kosmas E. Bantilas, Maria C. Naoum, Ioannis E. Kavvadias, Chris G. Karayannis and Anaxagoras Elenas
During intense ground motion excitations, the pounding between adjacent buildings may result in extensive structural damage. Despite the provision of regulations regarding the minimum separation gap required to prevent structural collisions, the majority...
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