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Updated: Mar 14, 2026

A Uniaxial Compression Experiment with CO2-Bearing Coal Using a Visualized and Constant-Volume Gas-Solid Coupling Test System
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Strata behavior at fully-mechanized coal mining and solid backfilling face.

Wei Yin1, Zhiwei Chen1, Kai Quan1

  • 1School of Mining, China University of Mining and Technology, Xuzhou, China.

Springerplus
|September 22, 2016
PubMed
Summary
This summary is machine-generated.

Backfilling coal mines with solid materials prevents major ground shifts and surface damage. This method offers superior strata support compared to traditional caving, minimizing mining impacts.

Keywords:
Backfill bodyFully-mechanized coal mining and solid backfillStrata behaviorStrata movement

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Area of Science:

  • Mining Engineering
  • Geotechnical Engineering
  • Rock Mechanics

Background:

  • Coal mining operations often lead to significant surface deformation and strata instability.
  • Traditional caving mining methods can cause substantial environmental impacts and safety concerns.

Purpose of the Study:

  • To evaluate the effectiveness of backfilling technology in mitigating strata movement and surface deformation.
  • To analyze the strata behavior and surface response using in-situ measurements at Ping Dingshan Coal Mine Group 12.

Main Methods:

  • Detailed explanation of backfilling system layout, key equipment, and technology.
  • In-situ measurement of rock strata movement and surface deformation above the gob area.

Main Results:

  • Backfill bodies effectively supported overburden strata, preventing first and periodic weighting.
  • Reduced scope of advanced support pressure and strata behavior compared to caving methods.
  • Overburden strata exhibited slow sinking with only bending and minor fracture zones.

Conclusions:

  • Solid backfilling is a viable and effective method for strata control in coal mining.
  • Backfilling significantly reduces the environmental impact and improves mining safety.
  • This technology offers a sustainable alternative to traditional caving mining practices.