采空区处理方式与上覆既有路基沉降模拟研究

doi:10.16182/j.issn1004731x.joss.201611011

系统仿真学报 ›› 2016, Vol. 28 ›› Issue (11): 2723-2728.doi: 10.16182/j.issn1004731x.joss.201611011

采空区处理方式与上覆既有路基沉降模拟研究

崔铁军^1,2,3, 马云东³, 王来贵⁴

1.辽宁工程技术大学安全科学与工程学院,辽宁阜新 123000;
2.矿山热动力灾害与防治教育部重点实验室,辽宁阜新 123000;
3.大连交通大学辽宁省隧道与地下结构工程技术研究中心,辽宁大连 116028;
4.辽宁工程技术大学力学与工程学院,辽宁阜新 123000

收稿日期:2015-03-16 修回日期:2015-05-23 出版日期:2016-11-08 发布日期:2020-08-13
作者简介:崔铁军(1983-),男,沈阳,博士后,讲师,研究方向为系统可靠性及力学系统稳定性。
基金资助:
国家自然科学基金(51274113,51274110,51474121,U1361211)

Study on Goaf Treatment and Settlement Simulation of Existing Overlying Highway Subgrade

Cui Tiejun^1,2,3, Ma Yundong³, Wang Laigui⁴

1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China;
2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin 123000, China;
3. Tunnel & Underground Structure Engineering Center of Liaoning,Dalian Jiaotong University, Dalian 116028, China;
4. School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China

Received:2015-03-16 Revised:2015-05-23 Online:2016-11-08 Published:2020-08-13

摘要/Abstract

摘要： 为避免开采对其上地表处路基沉降影响,提出直接顶板爆破、充填开采、充填开采+顶板爆破的采空区处理方案。根据规定设路基沉降限值为0.3 m,充实率为0.85、0.9和0.95。引入了PFC3D爆炸模型模拟爆破,提出充填体的模拟方法,对7种方案进行模拟。模拟结果表明：火成岩4在岩层运移过程中起着抑制上覆岩层移动的作用。充填开采+顶板爆破对地面沉降的影响明显小于只使用充填开采。得到了符合沉降要求的采空区处理方案：充填开采(充实率为0.9,0.95)、充填开采+顶板爆破(充实率0.85,0.9,0.95)。

关键词: 采空区处理, 既有路基, 沉降控制, 模拟研究

Abstract: To avoid that mining impacts on the settlement of above highway roadbed, goaf treatment schemes were put forward, such as roof blasting, filling mining and filling mining+roof blasting. According to the rules it is set that the subgrade settlement limit is 0.3 m, and filling rate is 0.85, 0.9 and 0.95. PFC3D explosion model to simulate the blasting was introduced, 7 schemes were put forward for simulating methods of filling body, and the 7 schemes were implemented. The simulation results show that the igneous rock 4 in rock migration process has the function of inhibitting the movement of the overlying strata. The influence of filling mining + roof blasting on the land subsidence is obviously lower than using the filling mining alone. The goaf treatment schemes meeting the requirements to limit the settlement are: Filling mining (filling rate is 0.9 and 0.95), and filling mining + roof blasting (filling rate is 0.85, 0.9 and 0.95).

Key words: goaf treatment, existing highway subgrade, settlement limit, simulation and study

中图分类号:

TD324

崔铁军, 马云东, 王来贵. 采空区处理方式与上覆既有路基沉降模拟研究[J]. 系统仿真学报, 2016, 28(11): 2723-2728.

Cui Tiejun, Ma Yundong, Wang Laigui. Study on Goaf Treatment and Settlement Simulation of Existing Overlying Highway Subgrade[J]. Journal of System Simulation, 2016, 28(11): 2723-2728.

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采空区处理方式与上覆既有路基沉降模拟研究

Study on Goaf Treatment and Settlement Simulation of Existing Overlying Highway Subgrade

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