Results 11 to 20 of about 8,399 (256)

Research and application of time-varying law of anchoring force of split-set bolt based on field measurement

open access: yesFrontiers in Environmental Science, 2023
Split-set bolt is widely used in supporting stope and roadway surrounding rock in metal mines. The maximum pull-out force generated by the relative slippage between the anchor bolt and the drill hole can serve as an indicator for assessing its anchoring ...
Yingjie Hao   +10 more
doaj   +1 more source

Stability analysis and evaluation of surrounding rock of ultra-deep shaft under complicated geological conditions

open access: yesFrontiers in Earth Science, 2023
The construction of deep underground engineering is greatly influenced by complex geological conditions such as high stress, faults, and fracture zones, which significantly affects the stability of the project.
Kuikui Hou   +8 more
doaj   +1 more source

Application of multi-criteria decision making to sustainable deep-sea mining vertical transport plans

open access: yesFrontiers in Marine Science, 2022
Ever since the concept of deep-sea mining was first described, the prospect of deep-sea mining testing and monitoring has proved to be a subject of great interest.
Wenbin Ma   +3 more
doaj   +1 more source

Research on path planning of autonomous manganese nodule mining vehicle based on lifting mining system

open access: yesFrontiers in Robotics and AI, 2023
Deep-sea manganese nodules are abundant in the ocean, with high exploitation potential and commercial value, and have become mineral resources that coastal countries compete to develop.
Yingchun Xie   +6 more
doaj   +1 more source

Retrieval of water quality parameters of South Andaman coral Islands using remotely operated underwater vehicle

open access: yesWater Science, 2019
Remotely operated underwater vehicle (ROV)-based spectral irradiance measurements at South Andaman coral reef islands are used to derive water quality parameters (chlorophyll-a, total-suspended sediments, turbidity, salinity, Secchi disk depth, diffuse ...
Shanmuga Priyaa S   +2 more
doaj   +1 more source

To the Deep End or Out of Their Depth?

open access: yesBMGN: Low Countries Historical Review, 2023
At the negotiations of the Third United Nations Convention on the Law of the Sea (1973-1982), industrialised states with the capacity to exploit the deep seabed had a fundamentally different vision of a regime regulating deep-sea mining than most ...
Yoram Carboex
doaj   +1 more source

Key Seabed Collection Technologies for Commercial Exploitation of Deep-Sea Polymetallic Nodules: Advances and Prospects [PDF]

open access: yes中国工程科学
Driven by the carbon peaking and carbon neutrality goals as well as the accelerated development of new quality productive forces, the supply-demand tension of critical metals has become increasingly pronounced. As a strategic successor resource, deep-sea
Lubao Luan   +6 more
doaj   +1 more source

Current Status and Development Direction of Deep-Sea Mineral Resource Exploitation Equipment

open access: yes中国工程科学, 2023
Deep-sea mineral resource development is an important measure to address China’s long-term dependence on strategic mineral resources. Having a complete and reliable equipment system is a prerequisite for China to promote its deep-sea mineral resource ...
Wang Guorong   +8 more
doaj   +1 more source

Morphotectonic Analysis of the East Manus Basin, Papua New Guinea

open access: yesFrontiers in Earth Science, 2021
Backarc basin systems are important sites of extension leading to crustal rupture where basin development typically occurs in rifting phases (or stages) with the final successful stages identified by the formation of spreading ridges and new oceanic ...
Nicholas J. Dyriw   +6 more
doaj   +1 more source

Mechanical behavior of composite materials for marine applications – an experimental and computational approach

open access: yesJournal of the Mechanical Behavior of Materials, 2018
The maturity of sophisticated numerical tools for predicting damage in composite materials has become a priority research area in aero- and underwater structures.
Kathavate V.S.   +5 more
doaj   +1 more source

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