And the thickness of target should also be well designed as for creating a better quasi - isentropic compressive wave profile . finally , experiments of quasi - isentropic loading to 93w alloys via w - mo - ti flier - plates were performed on a two - stage light gas gun 在二級(jí)輕氣炮上進(jìn)行了w - mo - ti體系梯度飛片材料準(zhǔn)等熵壓縮特性的實(shí)驗(yàn)研究,利用梯度飛片成功實(shí)現(xiàn)了對(duì)93w合金的準(zhǔn)等熵壓縮。
3 ) from the samples saturated completely by air to those saturated completely by brine , the velocities of compressive wave of the rocks increase obviously , with the extent of 11 . 73 % ; the velocities of shear wave change little or decrease slightly , with the average of decreasing extent of 1 . 21 % for shear wave 1 and 1 . 16 % for shear wave 2 . the difference of velocity between compressive wave and shear wave makes poisson ' s ratio increase obviously , with the average extent of 87 . 25 % 3 )從完全飽和氣到完全飽和水,珠江口盆地第三系砂巖、粉砂巖、碳酸鹽巖及其過(guò)渡性巖石類型的縱波速度是顯著增加的,平均增加幅度為11 . 73 ;橫波速度變化很小,或略有降低,橫波1平均降低幅度為1 . 21 ,橫波2平均降低幅度為1 . 16 ;縱橫波速度的這種差異變化導(dǎo)致泊松比顯著增加,平均增加幅度為87 . 25 。
Can influence directly the velocities of compressive wave and shear wave of rock . commonly , the higher the content of carbonate in rock , the higher the velocity of compressive wave and shear wave ; the higher the mud content , the lower the velocity of compressive wave and shear wave ; the higher the porosity of rock , the lower the velocity of compressive wave and shear wave ; the more compacted the rocks , the higher the velocity of compressive wave and shear wav 6 )巖石組成和孔隙度等巖石內(nèi)部因素均可直接影響巖石的縱橫波速度,一般說(shuō)來(lái),巖石中碳酸鹽含量越高,其縱橫波速度越高;而泥質(zhì)含量越高,其縱橫波速度越低;巖石孔隙度越高,其縱橫波速度越低,巖石密度越大,其縱橫波速度越高。
4 ) the velocity of the compressive and shear wave and poisson ' s ratio for the samples saturated completely by air increase with the increasing of confining pressure , but the increasing extent of velocities of compressive wave is more than that of shear wave 4 )在完全飽和氣和溫度不變的條件下,無(wú)論是縱波、橫波1還是橫波2 ,珠江口盆地第三系砂巖、粉砂巖、碳酸鹽巖及其過(guò)渡性巖石類型的速度均隨圍壓的增大而增加;但縱波的增加幅度大于橫波,泊松比隨圍壓的增大而增加。