汽油对燃烧杉木表面炭化痕迹影响研究

The Effect of Gasoline on the Charring Patterns of Burnt Fir surface

通过实验模拟室内火灾,研究了汽油对杉木板表面炭化痕迹在不同燃烧时间和冷却方式下的影响。利用照相机拍照记录,观察表面痕迹;利用软件定量测量,从数据中分析区别。研究结果表明,泼洒汽油燃烧后的杉木板,表面变色,开裂存在坑洞,有金属光泽,四周边缘炭化明显比中间更加严重。根据测量数据可知,随着燃烧时间的增加,相比于不泼洒汽油的杉木板,表面裂纹明显变宽变长,炭化块面积更小,炭化深度差距明显,灭火方式并不会改变汽油对杉木表面炭化痕迹的影响程度。该研究对类似火灾的调查有借鉴意义。

The effect of gasoline on the charring patterns on fir board surface with different combustion time and cooling mode were studied through simulating indoor fire by experiments in which digital camera was used to take pictures and get the patterns observed and the software quantitative measurement was used to carry out the difference analysis. The results showed that the fir board burned by spilled gasoline showed the phenomena of surface discoloration,crack with holes,metallic luster,and carbonization around the edge more serious than in the middle. It was known from the measurement data that with increase of burning time and compared to the fir board without spilled gasoline, the surface cracks lengthened and widened significantly,the charring area got smaller,the charring depth differed obvious,and the extinguishing method did not change the effect of gasoline on the surface charring patterns.