暴雨入滲對復合巖體塌陷區結構失穩的影響

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基金項目:

國家自然科學基金資助項目(No.50074002)

Evaluation on Structure Damage Due to Heavy Rain in Hard Composite Rock-mass in Subsidence Area

1. Civil and Environmental Engineering School, UST Beijing, Beijing 100083, China;
2. Shanxi Strata Control Key Lab, Xi'an Science and Technology University, Xi'an 710054, China

摘要: 利用位移、應力、能量耦合監測技術,分別對滲流大小、沉降量、聲發射特征參數等之間的關系進行統計,全面分析滲流對堅硬復合巖體支護的塌陷區圍巖結構動力失穩的影響.研究表明, 在滲流的作用下,塌陷區不穩定程度加劇,通過聲發射監測特征參數可以初步分析滲流與塌陷區結構失穩之間的演化關系.
- 暴雨入滲 /
- 塌陷區結構失穩 /
- 耦合監測 /
- 聲發射
Abstract: Based on the displacement, stress and energy coupled monitoring technique, the trends of subsidence rate, characteristic parameters of acoustic emission, and seepage in the subsidence area were statistically analyzed, respectively. The seepage influence on structural dynamic damage was evaluated synthetically. The result showed that the deformation rate was accelerating seriously and the evaluative trend between seepage and damage can be simply estimated by acoustic emission monitoring.
- seepage due to heavy rain /
- structure damage of subsidence area /
- coupled monitoring /
- acous-tic emission