原木檢量有尺寸檢量、材質(zhì)評(píng)定、檢量工具和印號(hào)標(biāo)志等內(nèi)容。(1)尺寸檢量:原木尺寸檢量是對(duì)原木的長(zhǎng)度、直徑進(jìn)行檢量。國(guó)家標(biāo)準(zhǔn)GB144.2—84《原木檢驗(yàn)尺寸檢量》中對(duì)原木尺寸檢量方法和要求主要如下:①檢量原木的長(zhǎng)度和直徑均...[繼續(xù)閱讀]

    伐倒木經(jīng)打枝、剝皮后,未經(jīng)加工造材的杉木樹(shù)干稱為杉原條(含水杉、柳杉)。國(guó)家標(biāo)準(zhǔn)GB/T5039—1999《杉原條》對(duì)其技術(shù)要求、檢驗(yàn)方法和材質(zhì)評(píng)定等進(jìn)行了規(guī)定。(1)尺寸規(guī)定:梢端徑:6～12cm;檢尺長(zhǎng):自5m以上,按1m進(jìn)級(jí);自8cm以上,按2cm進(jìn)...[繼續(xù)閱讀]

    國(guó)家標(biāo)準(zhǔn)GB/T4814—1984規(guī)定的材積計(jì)算公式適用于所有樹(shù)種的各種用途的原木。具體應(yīng)用如下:(1)檢尺長(zhǎng)L=2～10m,檢尺徑D=4～12cm,小徑原木計(jì)算公式為:(2)檢尺長(zhǎng)L=2～10m,檢尺徑自14cm以上的原木材積計(jì)算公式為:...[繼續(xù)閱讀]

    適用于杉原條和其他樹(shù)種的原條(如馬尾松原條、闊葉樹(shù)原條等)商品木材材積計(jì)算。(1)檢尺徑自10cm以上的杉原條材積計(jì)算公式為:(2)檢尺徑為8cm的杉原條材積由下列公式確定:式中:V——材積(m3);　　L——檢尺長(zhǎng)(m);　　D——檢尺徑(...[繼續(xù)閱讀]

    檢尺長(zhǎng):2.0m檢尺徑(cm)材積累計(jì)(m3)1根2根3根4根5根6根7根8根9根468101214161820222426283032343638400.0040.0080.0130.0190.0270.0360.0470.0590.0720.0860.1020.1200.1380.1580.1800.2020.2260.2520.2780.0080.0160.0260.0390.0540.0720.0930.1170.1440.1730.2050.2390.2770.3160.3590.4050.45...[繼續(xù)閱讀]

    檢尺長(zhǎng):5.0m檢尺徑(cm)　材積累計(jì)(m3)1根2根3根4根5根6根7根8根9根246　　　　　　　　　81012141618200.0250.0390.0510.0650.0810.0990.1180.0490.0780.1030.1310.1630.1980.2360.0740.1170.1540.1960.2440.2960.3540.0980.1560.2050.2620.3250.3950.4720.1230.1950.2570.3270.4060.4940.5900...[繼續(xù)閱讀]