白垩系砂岩导热系数与微观结构关联分析

doi:10.11799/ce201509028

Abstract

Abstract: Thermal conductivity is great significance for us to make an alysis heat conduction law study on heat conduction characteristics of rock, it is also the freezing method construction through the important thermal physical parameters of surrounding rock.Closely related to the thermal conductivity coefficient and inner rock mineral composition, micro structure, but the research on this field is less, effect of the concrete microstructure on thermal conductivity isn’t system.In this paper, based on the Xinzhuang colliery of Cretaceous formation water rich sandstone as the research object, the medium grained sandstone and the coarse-grained sandstone as the field acquisition representative of sandstone for indoor test , first of all, setted room temperature water saturation coefficient of heat conductivity test for two kinds of sandstone, the coefficient of thermal conductivity of obtaining the corresponding value range;.Then, X-ray diffraction, scanning electron microscopy (SEM) were launched microscopic test, obtain two kinds of sandstone respective inherent mineral components and structure, and thermal characteristics of the inner mineral composition has carried on the system analysis;Finally, combining with the lattice vibration theory, analyzes the relationship between the thermal conductivity and microstructure of sandstone . the results of the study indicate that: thermal conductivity rate of water saturated Cretaceous sandstone depends on the size of thermal conductivity rate of rock skeleton and gap liquid .Since the Cretaceous sandstone with low porosity, rock skeleton of Cretaceous sandstone thermal conductivity rate depends on the size of mineral composition of rock.

Key words: thermal conductivity, Cretaceous rocks, scanning electron microscope (SEM), lattice vibration

CLC Number:

TD265

0
/ / Recommend

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: http://www.coale.com.cn/EN/10.11799/ce201509028

http://www.coale.com.cn/EN/Y2015/V47/I9/82

References

[1] 魏国强,陈章庆. 深厚冲积层冻结段安全快速施工技术[J]. 煤炭工程,2015,02:34-36+40.
[2] 李阳,李栋伟,陈军浩. 人工冻结黏土冻胀特性试验研究[J]. 煤炭工程,2015,02:126-129.
[3] 杨更社,屈永龙,奚家米. 白垩系地层煤矿立井冻结壁的力学特性及温度场研究[J]. 岩石力学与工程学报,2014,09:1873-1879.
[4] 秦本东,谌伦建,晁俊奇,顿志林. 石灰岩各向异性膨胀的影响因素研究[J]. 西安科技大学学报,2009,01:64-67.
[5] 王思雯,吕士辉,胡克,郑志远. 岩石特性对导热系数影响探究[J]. 实验技术与管理,2012,06:39-41.
[6] 屈永龙. 新庄煤矿白垩系砂岩冻结状态下物理力学特性试验研究[D].西安科技大学,2014.
[7] 刘建军,刘海蕾. 岩石热物理性质测试与分析[J]. 西部探矿工程,2009,04:144-148.
[8] J. Goranson. in Handbook of Physical Constants. Geol.Soc. America Spec. Paper no. 36, edited by F. Birch,1942,p.228.
[9] K.Horai. Thermal conductivity of rock-forming minerals.J. Geophysical Research, 1971,76:1278-1308.
[10]苗社强,李和平,陈刚. 高温高压下矿物岩石热导率的实验研究进展[J]. 地球物理学进展,2013,05:2453-2466.
[11] Hofrncister A M. Mantle valucs of thermal conductivity and the geotherm from phonon lifetimes [J].Science,1999.283 (5408):1699-1706
[12] Fujisawa H,Fujii N，Mizutani H ,el al，Thermal diffusivity of MgSiO4,FeSiO4 and NaCl at high pressures and temperatures[J].Journal of Geophysical Research ,1968,73(14): 4727-4733
[13] Dobson D P, Hunt S A ,McCormack R , el al，Thermal diffusivity of MORB-composition rocks to 15 GPa: implications for triggering of deep seismicity [ J ].High Pressure Research :An International Journal ,2010,30(3):406-414.
[14] Seipold U. Temperature dependence of thermal transport properties of crystalline rock-a general law [ J ]. Tectonophysics ,1998,291(1-4):161-171.
[15] Gibert B, Seipold U ,Tommasi A ,el al，Thermal diffusivity of upper mantle rocks ; Influence of temperature ,pressure ,and the deformation fabric [ J ] .Journal of Geophysical Research-Solid Earth.2003,108(B8) dio：10 . 1029/2002 JB 002108.

Analysis of thermal conductivity of Cretaceous sandstone associated with microstructure

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	. Experimental study on mechanical properties of red sandstone under cyclic loading after freezing-thawing cycles [J]. COAL ENGINEERING, 2019, 51(2): 112-117.
[2]	. Numerical Simulation of Freezing Temperature Field-Sound Field Coupling in Silty Clay Layer [J]. COAL ENGINEERING, 2019, 51(2): 118-123.
[3]	. [J]. COAL ENGINEERING, 2018, 50(12): 98-102.
[4]	. [J]. COAL ENGINEERING, 2018, 50(12): 107-112.
[5]	. Application of Unascertained Measure Model in Risk Assessment of Coal Mine Freezing Method [J]. COAL ENGINEERING, 2018, 50(11): 33-37.
[6]	. [J]. COAL ENGINEERING, 2018, 50(11): 108-111.
[7]	. [J]. COAL ENGINEERING, 2018, 50(10): 1-5.
[8]	. Analysis on the Rationality of Configuration for Drilling Fluid on the Ground CBM Wells In Binchang Mining Area [J]. COAL ENGINEERING, 2018, 50(10): 117-120.
[9]	. [J]. COAL ENGINEERING, 2018, 50(10): 154-156.
[10]	. Mechanical property test on artificially frozen soils in deep alluvium [J]. COAL ENGINEERING, 2018, 50(9): 107-111.
[11]	. Research on Construction Method of Auxiliary Shaft for Wucaiwan No.1 Coal Mine [J]. COAL ENGINEERING, 2018, 50(8): 40-42.
[12]	. Grouting stabilization governance technology of water flowing subsided column in Pingshuo Underground Mine One [J]. COAL ENGINEERING, 2018, 50(4): 51-54.
[13]	. [J]. COAL ENGINEERING, 2018, 50(2): 113-115.
[14]	. Application and development of grouting transformation strata by directional drilling technology in coal mines in China [J]. COAL ENGINEERING, 2017, 49(9): 1-5.
[15]	. Application and exploration of inclined shaft freezing technology in wellbore construction in Libi coal mine [J]. COAL ENGINEERING, 2017, 49(9): 6-9.