Results 31 to 40 of about 11,357 (263)

Design and Construction of Deep Excavations [PDF]

open access: yesEurasian Journal of Science and Engineering, 2020
Excavations in urban developed area are generally supported by deep excavation walls such as; diaphragm wall, bored piles, soldier piles and sheet piles. In some cases, these walls may be braced by internal braces or tie back anchors. Tie back anchors are by far the predominant method for wall support, the large working space inside the excavation ...
Barham J. Nareeman   +1 more
openaire   +2 more sources

The deformation of retaining piles and ground surface under various support systems during deep excavation

open access: yesGeoenvironmental Disasters, 2017
Background Since the high-rise buildings and deep underground structures dramatically increases in urban area, the decent design and construction of deep excavations is essential before these structures are actually built up.
Yiqun Tang, Wenqiang Zhao, Jie Zhou
doaj   +1 more source

Multiple Disturbances of Existing Tunnels Caused by Deep Excavation and New Shield Tunnel

open access: yesAdvances in Civil Engineering, 2023
With the continuous development of urban underground spaces, new underground engineering approaches are becoming more similar to existing operating tunnels.
Haoran Li, Fei Ye, Enjie Su, Xingbo Han
doaj   +1 more source

Evaluation of Hypoplastic Clay Model for Deep Excavation Modelling

open access: yesArchives of Civil Engineering, 2016
This paper presents an evaluation of the Hypoplastic Clay constitutive model for finite element analysis of deep excavations and displacements induced by excavations in the influence zone.
Mitew-Czajewska M.
doaj   +1 more source

Stability Analysis and Parameter Optimization of Deep Excavation Supporting System in Granular Soils

open access: yesAdvances in Civil Engineering, 2020
Deep excavations are prone to result in excessive ground surface settlement displacement of surrounding existing structures, which could cause severe economic damage, even casualties.
Manman Dong, Pengjiao Jia
doaj   +1 more source

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

open access: yesAdvances 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   +4 more
doaj   +1 more source

Incremental Iterative Calculation Method for Stress and Deformation of Retaining Structures under Asymmetric Excavation [PDF]

open access: yes长江科学院院报
[Objectives] Numerous engineering practices and studies on foundation pits have shown that the bending moment and horizontal displacement of the support structure on the deep excavation side of asymmetric excavation foundation pits are significantly ...
JIN Ya-bing, YU Peng, GE Fan, FU Xu-dong
doaj   +1 more source

Influenced Zone of Deep Excavation on Adjacent Tunnel Displacement and Control Effect of Ground Improvement in Soft Soil

open access: yesApplied Sciences, 2022
The aim of this study is to predict the influenced zone of deep excavation on adjacent tunnel displacement, evaluate the control effect of ground improvement, and give the optimal parameters for ground improvement. Based on the current research, a series
Bo Liu, Chengmeng Shao, Wen Xu
doaj   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

open access: yesFEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji   +2 more
wiley   +1 more source

Experimental study on time-dependent evolution of shield tunneling disturbance in soft soil deep strata using centrifuge test

open access: yesYantu gongcheng xuebao
The soil arching caused by shield tunnel excavation in deep soft soil layers is directly related to the tunnel depth and creep characteristics of soft soil.
LIU Shujia1, 2 , LIAO Shaoming2, 3, MA Xianfeng2, 3
doaj   +1 more source

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