中国安全生产科学技术
中國安全生產科學技術
중국안전생산과학기술
JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY
2014年
7期
82-86
,共5页
王云刚%李满贵%李盟%代少华
王雲剛%李滿貴%李盟%代少華
왕운강%리만귀%리맹%대소화
构造煤%灰色关联度%超声波参数%定量分析%影响机理
構造煤%灰色關聯度%超聲波參數%定量分析%影響機理
구조매%회색관련도%초성파삼수%정량분석%영향궤리
tectonic coal%grey relational grade%ultrasonic parameters%quantitative analysis%influence mechanism
一定厚度构造煤的存在是瓦斯突出发生的必要条件;同时,构造煤发育区域也往往是瓦斯富集区。因此,研究构造煤的物性参数具有重要意义。采用灰色关联度和多元回归分析相结合的方法对构造煤的超声波实验测试参数的影响因素进行半定量研究。研究结果表明:影响构造煤纵波波速和品质因子的主要因素是煤体的孔隙率、水分、灰分和挥发分。纵波波速和品质因子随着孔隙率和挥发分的增加而增加,随着水分和灰分的增加而减少,视密度和最大镜质组反射率对两者影响较小。最后,从微观角度定性分析了孔隙率、水分和灰分三个主要影响因素对构造煤超声波参数的影响机理,为超声波探测构造煤技术提供了一定的理论支持。
一定厚度構造煤的存在是瓦斯突齣髮生的必要條件;同時,構造煤髮育區域也往往是瓦斯富集區。因此,研究構造煤的物性參數具有重要意義。採用灰色關聯度和多元迴歸分析相結閤的方法對構造煤的超聲波實驗測試參數的影響因素進行半定量研究。研究結果錶明:影響構造煤縱波波速和品質因子的主要因素是煤體的孔隙率、水分、灰分和揮髮分。縱波波速和品質因子隨著孔隙率和揮髮分的增加而增加,隨著水分和灰分的增加而減少,視密度和最大鏡質組反射率對兩者影響較小。最後,從微觀角度定性分析瞭孔隙率、水分和灰分三箇主要影響因素對構造煤超聲波參數的影響機理,為超聲波探測構造煤技術提供瞭一定的理論支持。
일정후도구조매적존재시와사돌출발생적필요조건;동시,구조매발육구역야왕왕시와사부집구。인차,연구구조매적물성삼수구유중요의의。채용회색관련도화다원회귀분석상결합적방법대구조매적초성파실험측시삼수적영향인소진행반정량연구。연구결과표명:영향구조매종파파속화품질인자적주요인소시매체적공극솔、수분、회분화휘발분。종파파속화품질인자수착공극솔화휘발분적증가이증가,수착수분화회분적증가이감소,시밀도화최대경질조반사솔대량자영향교소。최후,종미관각도정성분석료공극솔、수분화회분삼개주요영향인소대구조매초성파삼수적영향궤리,위초성파탐측구조매기술제공료일정적이론지지。
The existing of tectonic coal with certain thickness is the essential condition of coal and gas outburst;meanwhile,the development region of tectonic coal is also the gas enrichment area. Therefore,the study on physi-cal parameters of tectonic coal has important significance. The method of combining Multiple Regressive Analysis with Grey Relational Grade was applied in the semi-quantitative study on the influence factors of ultrasonic experi-mental parameters for tectonic coal. The results showed that the porosity rate,ash content,moisture content and volatile matter are the main factors affecting the longitudinal wave velocity and quality factor of tectonic coal. The longitudinal wave velocity and quality factor increasewith the increased porosity rate and volatile matter,and de-crease with the increased moisture content and ash content. The maximum vitrinite reflectance and visual density has less influence to the longitudinal wave velocity and quality factor. Finally,the influence mechanism of the po-rosity rate,ash content and moisture content on the ultrasonic parameters of tectonic coal was qualitatively analyzed from microcosmic angle,which provides theoretical support for the detection technology of tectonic coal by ultrasonic.