Results 21 to 30 of about 641 (176)

Experimental Study on the Floor Heave and Failure Process of Rock Samples under Biaxial Step Loading

Applied Sciences, 2023
Floor heave is a typical tunnel issue in tunnelling engineering. To gain deep insights into the deformation mechanism and failure processes of floor heave at the bottom of a tunnel in layered rock, biaxial step-loading tests were conducted on rock ...
Diyuan Li, Zhen Peng, Quanqi Zhu, Jinyin Ma, Hao Gong   +4 more
doaj   +1 more source

Numerical study on floor stability control under high bearing pressure in roadway excavation along filling body

Meikuang Anquan, 2022
In order to solve the problem of roadway surrounding rock support caused by roadway floor heave along the filling body, taking Lu’an Changcun Coal Mine as the engineering background, the advantages and disadvantages of two control schemes such as floor ...
WU Jianbiao, WU Rui, XU Hongwei, ZHANG Penghui   +3 more
doaj   +1 more source

Failure mechanism of surrounding rock and control of floor heave in heterogeneous composite rock roadway

Yantu gongcheng xuebao, 2022
Under the complex stress environment of deep high ground stress and interlayer weak interlayer (structural surface), the deformation of the surrounding rock of composite coal (rock) roadway is severe, and the floor heave is particularly prominent.
ZHANG Dong 1, BAI Jian-biao 1, 2, YAN Shuai 2, WANG Rui 1, MENG Ning-kang 1, WANG Gong-yuan 1
doaj   +1 more source

FLUID FLOW INDUCED BY AN ELASTIC PLATE IN HEAVING MOTION

ASEAN Engineering Journal, 2022
We perform three-dimensional simulations of an elastic plate heaving in a sinusoidal motion with different frequencies to explore the effects of the forcing heaving frequency on the hydrodynamic force generation and flow structures. It is aimed to simulate the motion of a rectangular elastic plate, representing a simplified flexible wing or fin, placed
May Hlaing Win Khin, Kentaro Kato, Hyung Jin Sung, Shinnosuke Obi   +3 more
openaire   +1 more source

A new type of anti-heave semi-submersible drilling platform

Petroleum Exploration and Development, 2017
A new type of semi-submersible drilling platform is designed. The numerical simulation software is used to analyze the heave response of the new platform in the frequency domain and time domain, and the semi-submersible drilling platforms with double ...
Bo CHEN, Zhiyong YU, Yong LYU, Xiaojian LI, Chunfang LI   +4 more
doaj   +1 more source

Dynamic performance and heave suppression of FDPSO vessel based on model tests

Zhongguo Jianchuan Yanjiu
ObjectiveThis paper studies the dynamic performance of a new deep-water octagonal floating drilling production storage and offloading (FDPSO) unit under different heave plate arrangements to provide guidance for the design of an FDPSO in the South China ...
Wenhui XIE, Hui LI, Xiaokang DENG, Liqin LIU, Longfei XIAO   +4 more
doaj   +1 more source

Experimental Investigation of Geosynthetic-Stabilized Unpaved Road Performance under Varying Swelling Distribution Areas [PDF]

E3S Web of Conferences
Moisture infiltration into expansive subgrades results in differential heave that varies in spatial extent, adversely impacting pavement surface integrity and riding quality. To investigate this phenomenon, a large-scale experimental setup (1.5 m × 1.5 m
Srivastava Sundaram, Balunaini Umashankar   +1 more
doaj   +1 more source

The Behavior of the Flexible Plate – Supported with SiCC-Mortar Column on Expansive Soil

International Journal of Technology, 2020
This paper provides the test results of the load-deformation test on a flexible plate, supported and unsupported by SiCC mortar columns in the laboratory setting. Two columns types were used in this experiment, a circular column (O-shape) and a column
Agus Setyo Muntohar, Willis Diana, Muhammad Yogma Tafalas, Nakosa Rafa Bimantara   +3 more
doaj   +1 more source

Mechanism of Roadway Floor Heave Controlled by Floor Corner Pile in Deep Roadway under High Horizontal Stress

Advances in Civil Engineering, 2021
In order to overcome the support difficulty of serious floor heave caused by rock burst, with the floor heave of ventilation roadway in Hegang Xing An Coal Mine as the engineering background, the treatment scheme of the concrete-filled steel tube corner ...
Xinchao Kang, Dongming Guo, Zhiying Lu
doaj   +1 more source

High‐Pressure Modulation of Breathing Kagome Lattice: Cascade of Lifshitz Transitions and Evolution of the Electronic Structure

Advanced Science, EarlyView.
External pressure directly tunes the breathing distortion of the kagome lattice in Fe3Sn2, suppressing it near 15 GPa and reversing it at higher pressures. This structural modulation drives a cascade of Lifshitz transitions, reconstructs the Fermi surface, strengthens electronic correlations and carrier localization, and modifies ultrafast electron ...
Marcos Vinicius Gonçalves‐Faria, Maxim Wenzel, Yuk Tai Chan, Olga Iakutkina, Francesco Capitani, Davide Comboni, Michael Hanfland, Qi Wang, Hechang Lei, Martin Dressel, Alexander A. Tsirlin, Alexej Pashkin, Stephan Winnerl, Manfred Helm, Ece Uykur   +14 more
wiley   +1 more source