Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Zhanguo Ma"'
Autor:
Junbo Sun, Shukui Liu, Zhanguo Ma, Di Wang, Yufei Wang, Hongyu Zhao, Bo Huang, Mohamed Saafi, Xiangyu Wang
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e02906- (2024)
Eco-friendly concrete becomes research hotspots since concrete production emits 8–10% of the total anthropogenic CO2 emissions worldwide. Industry solid waste modification exhibits great potentials on mitigating aggregates depletion and carbon emis
Externí odkaz:
https://doaj.org/article/d1cbdf245182423585db277d6579cf3e
Publikováno v:
Deep Underground Science and Engineering, Vol 3, Iss 1, Pp 25-38 (2024)
Abstract There is an urgent need to develop optimal solutions for deformation control of deep high‐stress roadways, one of the critical problems in underground engineering. The previously proposed four‐dimensional support (hereinafter 4D support)
Externí odkaz:
https://doaj.org/article/68aa6de09280481fa968f9c599fe3863
Autor:
Junjie Xue, Hui Gao, Zhanguo Ma, Huaqiang Shi, Xiaoling Li, Teng Li, Zhilin Cheng, Chen Wang, Pan Li, Nan Zhang
Publikováno v:
Atmosphere, Vol 15, Iss 4, p 487 (2024)
The microscopic pore structure of tight sandstone reservoirs significantly influences the characteristics of CO2 flooding after water flooding. This research was conducted using various techniques such as casting thin sections, high-pressure mercury
Externí odkaz:
https://doaj.org/article/857d0bcef22b491c93b38a280a75339b
Publikováno v:
International Journal of Mining Science and Technology, Vol 33, Iss 6, Pp 761-772 (2023)
Investigations on the dynamic mechanical properties and failure mechanisms of coal under in-situ stress is essential for the prevention of dynamic disasters in deep coal mines. Thus, a modified true triaxial Hopkinson bar was employed to explore the
Externí odkaz:
https://doaj.org/article/19ff02e13c734c349e3b41bc545ceb31
Autor:
Xiujun Liu, Zhanguo Ma
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-23 (2023)
Abstract Based on the idea of discretization and the force balance analysis of each mass spring element, a spring-element analysis method for bolt is proposed. By analyzing the mechanical behavior of the bond interface of the fully grouted bolt, thre
Externí odkaz:
https://doaj.org/article/1377b057948245d19626392ce17b8a48
Publikováno v:
Applied Sciences, Vol 14, Iss 7, p 2914 (2024)
This paper focuses on investigating the stability of a deep foundation pit with hard surrounding rocks at different excavation stages with different supporting schemes by means of numerical calculations. The supporting schemes in question were combin
Externí odkaz:
https://doaj.org/article/63b825d4e6af4692b4606abe8bd7f16b
Publikováno v:
Shock and Vibration, Vol 2023 (2023)
In this investigation, deformations of a deep foundation pit in hard rock strata, respectively, under delayed and in-time supporting schemes of one-layer transverse reinforced concrete bracings at the top of the foundation pit, one-layer steel bracin
Externí odkaz:
https://doaj.org/article/b1ea5921668b4f68be0cbad66ed03e16
Publikováno v:
IEEE Access, Vol 10, Pp 54197-54207 (2022)
With the application of artificial intelligence in modern industry, the demand for intelligent fault diagnosis systems is increasing, which has attracted much attention of researchers. There is a popular methodology to use the knowledge or rules defi
Externí odkaz:
https://doaj.org/article/45db5c6808d947b8a0dc81cdabe9f591
Publikováno v:
Materials, Vol 16, Iss 10, p 3728 (2023)
S2−-enriched alkali-activator (SEAA) was prepared by modifying the alkali activator through Na2S. The effects of S2−-enriched alkali-activated slag (SEAAS) on the solidification performance of Pb and Cd in MSWI fly ash were investigated using SEA
Externí odkaz:
https://doaj.org/article/71add3f6fe294711b1cbe3f6250e352d
Publikováno v:
Geofluids, Vol 2022 (2022)
It is urgent for westward coal mine development to control surrounding rock of thick unconsolidated stratum, thin basement rock, and super high seam under geological conditions. Studying surrounding rock deformation control mechanism under special ge
Externí odkaz:
https://doaj.org/article/976a594ae479429cbfdaeeadd5aca154