Prompt report on the roof falling induced slope movement on August24, 2019 in Iwaki City, Japan

2020 ◽  
Vol 57 (4) ◽  
pp. 111-115
Author(s):  
Go SATO ◽  
Hiroshi YAGI ◽  
Kunihiro NITTA ◽  
Jun UMEMURA ◽  
Kazunori SANPEI ◽  
...  
Keyword(s):  
2013 ◽  
Vol 50 (12) ◽  
pp. 1236-1249 ◽  
Author(s):  
C.Y. Cheuk ◽  
K.K.S. Ho ◽  
A.Y.T. Lam

Soil nailing has been used to upgrade substandard loose fill slopes in Hong Kong. Due to the possibility of static liquefaction failure, a typical design arrangement comprises a structural slope facing anchored by a grid of soil nails bonded into the in situ ground. Numerical analyses have been conducted to examine the influence of soil nail orientations on the behaviour of the ground nail–facing system. The results suggest that the use of steeply inclined nails throughout the entire slope could avoid global instability, but could lead to significant slope movement especially when sliding failure prevails, for instance, due to interface liquefaction. The numerical analyses also demonstrate that if only subhorizontal nails are used, the earth pressure exerted on the slope facing may cause uplift failure of the slope cover. To overcome the shortcomings of using soil nails at a single orientation, a hybrid nail arrangement comprising nails at two different orientations is proposed. The numerical analyses illustrate that the hybrid nail arrangement would limit slope movement and enhance the robustness of the system.


2013 ◽  
Author(s):  
Julien Cohen-Waeber ◽  
Nicholas Sitar ◽  
Roland Bürgmann

Author(s):  
Abdelfettah Fredj ◽  
Aaron Dinovitzer

Pipeline integrity is affected by the action of external soil loads in addition to internal fluid pressure. External soil loads can be generated by landslides or at sites subject to ground subsidence, heave or seismic effects. Under these varied conditions of ground movement potential pipeline safety involves constraints on design and operations. The design processes includes developing an understanding of strains that could be imposed on the pipe (strain demand) and strain limits that the pipe can withstand without failure. The ability to predict the pipeline load, stress or strains state in the presence of soil restraint and/or soil displacement induced loading is not well described in design standards or codes of practice. This paper describes the ongoing work involved in a study investigating the mechanical behavior of buried pipelines interacting with active landslides. Detailed pipe-soil interaction analyses were completed with a 3D continuum SPH method. This paper describes the LS-DYNA numerical modeling process, previously developed by the authors, which was refined and applied to site-specific conditions. To illustrate the performance of the modeling process to consider a translational slide, additional numerical model validation was completed and is described in this paper. These comparisons illustrate that good agreement was observed between the modeling results and experimental full scale trial results. Sample results of the application of the validated 3D continuum modeling process are presented. These results are being used to develop generalized trends in pipeline response to slope movements. The paper describes both the progress achieved to date and the future potential for simplified engineering design tools to assess the load or deformation capacity requirements of buried pipelines exposed to different types of slope movement.


2007 ◽  
Vol 43 (5) ◽  
pp. 312-319
Author(s):  
Taishi ABE ◽  
Tomoyuki TAKAMI ◽  
Akinori SHOJI ◽  
Makito NODA ◽  
Toshimitu KONDO

2021 ◽  
Vol 12 (2) ◽  
pp. 455-476
Author(s):  
Evgeniy A. Erbakhaev ◽  
◽  
Maxim V. Kratenko ◽  

The article examines the problem of compensation for harm caused in the process of using a building and structure. Attention is paid to the side of the defendant in relation to apartment buildings and non-residential buildings, the distribution of liability in the case of a plurality of tortfeasors, the regulation of third-party liability issues by the contract. A comparative analysis of the legislation of the Russian Federation and the People’s Republic of China regulating the liability of building’s owners (users) and contractors involved in the maintenance of a building as well as court practice is conducted. The choice of the Chinese legal system is due to the presence of special rules in Tort Liability Law of China (2009). According to the results of the study, the authors have formulated a number of proposals, in particular: to unify the legal regime for residential and non-residential buildings for the purposes of compensation for harm caused to third parties; to differentiate the liability for harm caused by the destruction of a building (its structural components) and damage due to items falling out from the building (snow or ice falling from the roof, falling advertising designs, objects being thrown out of the building, etc.), to allow the contractual regulation of owner’s liability provided that the victim is given the right to choose the defendant (the building’s owner or the maintenance company, the contractor involved). The authors also argue in favor of a codified act as a source of tort law, which will ensure consistent regulation of the studied relations.


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