煤炭地下气化过程中顶板岩层移动特征的研究
摘要:采用热弹塑性模型,运用有限元软件,对煤炭地下气化的整个过程进行模拟,得出了煤炭地下气化过程中顶板岩层不同位置处的位移,并将其结果与传统煤炭开采的结果进行对比。结果表明:煤炭地下气化和煤炭开采过程中,顶板岩层移动曲线符合负指数函数关系;煤炭气化顶板岩层下沉速度比煤炭开采下沉速度快,且垂直位移较大;离煤层顶板越近,垂直位移越大,特别是直接顶位移急剧增大。
Abstract:The thermal elastic plastic model and finite element software were used to simulation the whole process of underground coal gasification, and obtained displacement of different positions of roof rock, then contrasted to the traditional coal mining. The results showed that:in the processing of underground coal gasification and coal mining, the roof strata movement curve consistent with a negative exponential functions the sinking speed of coal gasification roof is faster than the sinking speed of coal mining, and vertical displacement is larger; the nearer from the roof, the greater of the vertical displacement, especially the direct roof displacement increases rapidly.
中文标题：
煤炭地下气化过程中顶板岩层移动特征的研究
Research of Characteristics of Roof Strata Movement in Underground Coal Gasification Process
作者：
郑慧慧1,张兴华1,刘希亮2
ZHENG Huihui1,ZHANG Xinghua1,LIU Xiliang2
作者简介:郑慧慧,1981年生,女,汉族,河南商丘人,助教。主要从事岩土工程和结构工程方面的教学和研究工作。E-mail:zhenghui0402@126.com
通讯地址：
1. 商丘师范学院建筑与土木工程系, 河南商丘 476000; 2. 河南理工大学土木工程学院, 河南焦作 454003
1.DepartmentofArchitectureandCivilEngineering,JournalofShangqiuTeachersCollege,Shangqiu,476000,Henan,China; 2.DepartmentofCivilEngineering,HenanPolytechnicUniversity,Jiaozuo454003,Henan,China
中图分类号:TQ546;TD325
doi:10.3969/j.issn.1007-2993.2010.05.003
出版物：岩土工程技术
收稿日期:2010-06-22
网络出版日期:2021-07-06
关键词:煤炭地下气化,煤炭开采,数值模拟,顶板岩层,位移
Key words:underground coal gasification,coal mining,numerical simulation,roof strata,displacement
文档包含图片数量：图片(0)张
文档包含表格数量：表格(0)个
参考文献：
基金项目：
基金项目: 国家自然科学基金项目(50574037)
- 文件大小:
- 228.67 KB
- 下载次数:
- 60
-
高速下载
|
|
