【摘要】：對(duì)火山玄武巖破碎后形成的6個(gè)粒組區(qū)間的試樣依規(guī)范進(jìn)行直剪試驗(yàn),得出不同相對(duì)密度下的內(nèi)聚力和內(nèi)摩擦角試驗(yàn)數(shù)據(jù);根據(jù)抗剪強(qiáng)度參數(shù)的統(tǒng)計(jì)結(jié)果,按Chauvenet法剔除粗差數(shù)據(jù),并評(píng)價(jià)變異性,以提高數(shù)據(jù)的準(zhǔn)確性和可靠度。對(duì)試樣在不同的相對(duì)密度下和不同粒組區(qū)間的力學(xué)規(guī)律進(jìn)行對(duì)比、研究分析后得出:模擬月壤的內(nèi)聚力為0.33~5.5kPa,內(nèi)摩擦角為29.1°~35.65°;抗剪強(qiáng)度參數(shù)與顆粒粒徑、密度具有較好的線性關(guān)系;顆粒粒徑?jīng)Q定了密度的變化范圍,這導(dǎo)致了抗剪強(qiáng)度參數(shù)在密度的一定的范圍內(nèi)隨之變化,而總的變化趨勢(shì)卻是由粒徑來(lái)控制的。根據(jù)以上結(jié)論,按一定顆粒級(jí)配研制模擬月壤混合樣,其內(nèi)聚力為0.16~1.59kPa,內(nèi)摩擦角為34.8°~45.5°,符合真實(shí)月壤的實(shí)際情況�？蔀楹罄m(xù)的模擬月壤研制和性能評(píng)估提供參考。
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圖片說(shuō)明：圖１直剪試驗(yàn)儀器及受力簡(jiǎn)圖Ｆｉｇ．１Ｄｉａｇｒａｍｏｆｍｏｔｏｒ－ｄｒｉｖｅｎｄｉｒｅｃｔｓｈｅａｒａｐｐａｒａｔｕｓａｎｄｆｏｒｃｅ
[Abstract]:According to the code, the test data of cohesion and internal friction angle under different relative densities are obtained, and according to the statistical results of shear strength parameters, the gross error data are eliminated by Chauvenet method, and the variability is evaluated in order to improve the accuracy and reliability of the data. The mechanical laws of the samples under different relative densities and different particle groups were compared. The results showed that the cohesion of simulated lunar soil was 0.33 鈮，

本文編號(hào)：2511867