Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Posttensioned Masonry Walls01:15

Posttensioned Masonry Walls

657

Post-tensioned masonry walls use high-strength steel rods or flexible tendons to enhance the strength and efficiency of masonry structures. These elements are securely anchored to the foundation and extend vertically either within the cores of the masonry units or between the masonry wythes. The construction process involves building the wall with these tensioning elements in place and allowing the mortar to fully cure.
Following the curing process, the tensioning begins. Steel rods are...
657
Design of Columns under an Eccentric Load01:21

Design of Columns under an Eccentric Load

1.5K
Designing columns to withstand eccentric loads is a critical aspect of structural engineering, ensuring structures can support off-center loads without failure. This design process must account for the additional normal stresses introduced by eccentric loading, which can significantly influence a column's stress distribution and overall stability. An eccentric load applied to a column induces normal stresses that can be conceptualized as a combination of stresses due to an equivalent...
1.5K
Masonry Loadbearing Walls01:16

Masonry Loadbearing Walls

623
Masonry load-bearing walls, constructed from materials like brick, stone, or concrete masonry units, serve as a crucial component in building structures by supporting the loads from floors and roofs and transferring them to the foundation. These walls, known for their compressive strength, can be reinforced or unreinforced to suit different building needs, accommodating both the dead and live loads while maintaining safety through lower working stresses compared to the materials' ultimate...
623
Design of Columns under a Centric Load01:17

Design of Columns under a Centric Load

683
The design of columns under centric load is a fundamental aspect of structural engineering and is critical for ensuring the stability and integrity of structures. Euler's and Secant's formulas are central to understanding and calculating the critical load and deformation behaviors of columns, providing a basis for safe and effective structural design.
Euler's formula is applicable under the assumption that the column is a perfect, straight, homogenous prism, and it is operating...
683
Design Example: Maintaining Level of an Embankment01:19

Design Example: Maintaining Level of an Embankment

548
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
548
Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

739
Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
739

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

C1 pedicle screw placement risks in patients with ponticulus posticus: a CTA retrospective simulation study.

Journal of orthopaedic surgery and research·2026
Same author

Clinical benefits and current challenges of photon-counting detector CT in vascular imaging.

Radiology advances·2026
Same author

Hallucination at low radiation dose: Evaluation of two deep-learning reconstruction methods in high-resolution chest CT.

Proceedings of SPIE--the International Society for Optical Engineering·2026
Same author

The Uncoupling of CT Dose and Noise.

Radiology·2026
Same author

A framework for quantifying and leveraging uncertainty in pre-trained CT denoising model.

IEEE transactions on bio-medical engineering·2026
Same author

Determinants and expected differences in the calculation of CT effective dose conversion factors for various phantom sizes and scan parameters.

Medical physics·2026

Related Experiment Video

Updated: May 4, 2026

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
09:32

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Published on: November 20, 2014

11.8K

Study on isolation pillar thickness optimization and slope stability control in hanging wall ore mining.

Shuai Li1, Liuyu Wang1, Zhenyu Dan2

  • 1School of Resource and Safety Engineering, Central South University, Changsha, 410083, China.

Scientific Reports
|May 2, 2026
PubMed
Summary

Determining the optimal isolation pillar thickness is crucial for mining safety. A 30m pillar significantly reduces deformation and balances safety with economic recovery in open-pit to underground mining.

Keywords:
Hanging-wall orebodyNumerical simulationOpen-pit to underground miningSlope stabilityThickness optimization

More Related Videos

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal
07:22

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Published on: November 10, 2023

4.0K
Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

7.3K

Related Experiment Videos

Last Updated: May 4, 2026

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
09:32

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Published on: November 20, 2014

11.8K
Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal
07:22

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Published on: November 10, 2023

4.0K
Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

7.3K

Area of Science:

  • Mining Engineering
  • Geotechnical Engineering
  • Rock Mechanics

Background:

  • Challenges in determining isolation pillar thickness for hanging-wall orebodies.
  • Open-pit to underground mining transitions require robust slope stability analysis.
  • The "slope-goaf-backfill" system stability is critical.

Purpose of the Study:

  • To analyze the stability of the "slope-goaf-backfill" system.
  • To determine the optimal isolation pillar thickness for hanging-wall orebody recovery.
  • To provide a quantitative design reference for coordinated mining.

Main Methods:

  • FLAC3D numerical simulation.
  • Strength Reduction Method (SRM).
  • Comparative analysis of five isolation pillar thicknesses (10m to 50m).

Main Results:

  • All pillar thicknesses met Grade I slope stability requirements.
  • A significant threshold effect on deformation control was observed at 30m thickness.
  • Maximum system displacement reduced from >80mm to ~34mm at 30m thickness.

Conclusions:

  • An isolation pillar thickness of approximately 30m balances safety and economic recovery.
  • Further increases in pillar thickness yield diminishing stability gains.
  • The recommended thickness ensures safe and controllable stress, displacement, and plastic zone development.