本文選題：SDG土壤密度儀 + 壓實(shí)度　； 參考：《蘇州科技學(xué)院》2014年碩士論文

【摘要】：SDG土壤密度儀路基壓實(shí)度檢測屬于一種新型無損快速填土密度檢測技術(shù),可克服常規(guī)檢測方法實(shí)時性差、檢測效率低等缺點(diǎn),有利于對現(xiàn)場填土質(zhì)量進(jìn)行動態(tài)控制,但是國內(nèi)相關(guān)研究較少,尚處于探索階段。為此,本文結(jié)合常熟、昆山工程檢測中心的檢測項(xiàng)目,通過現(xiàn)場測試和室內(nèi)模擬試驗(yàn)等方法,對SDG土壤密度儀填土密度檢測的一系列影響因素進(jìn)行了詳細(xì)的分析,并進(jìn)一步對SDG土壤密度儀在素粘性土、固化土、粉土、砂土等條件下實(shí)施快速檢測土基壓實(shí)度的可靠性進(jìn)行了評價,以及針對施工單位和質(zhì)量檢測單位的不同的檢測要求建立了各個土質(zhì)條件下的SDG土壤密度儀干密度測試誤差的修正方法。同時,綜合本文的研究成果,針對SDG土壤密度儀填土密度檢測的特點(diǎn),建立了一套標(biāo)準(zhǔn)化測試程序,為SDG土壤密度儀的實(shí)際工程運(yùn)用提供指導(dǎo)。1、通過室內(nèi)模擬現(xiàn)場土基填土密度檢測,對SDG土壤密度儀前置參數(shù)進(jìn)行了系統(tǒng)的研究,分析了前置參數(shù)在SDG土壤密度儀測試中的作用；并進(jìn)一步在室內(nèi)模擬了現(xiàn)場壓實(shí)度檢測中的環(huán)境因素,分析了這些環(huán)境因素對SDG土壤密度儀干密度的影響,為建立標(biāo)準(zhǔn)化測試程序提供了理論依據(jù)。2、結(jié)合常熟、昆山工程檢測中心的檢測項(xiàng)目,在現(xiàn)場不同土質(zhì)條件下獲得了大量的SDG土壤密度儀與灌砂法測試數(shù)據(jù)。并在此基礎(chǔ)上,對素粘性土、粉土、固化土、砂土等常見土質(zhì)條件下的SDG土壤密度儀檢測結(jié)果進(jìn)行了統(tǒng)計分析,獲得了相關(guān)的統(tǒng)計指標(biāo),從而對不同土質(zhì)條件下的SDG土壤密度儀的可靠度進(jìn)行了合理科學(xué)的評價。3、通過對SDG土壤密度儀與灌砂法的測試干密度的對比,分析了SDG土壤密度儀的誤差來源與表現(xiàn)形式,并在此基礎(chǔ)上,提出了兩種不同的SDG土壤密度儀干密度修正方法—補(bǔ)償法和整體修正模型,并進(jìn)行了修正效果檢驗(yàn)。結(jié)果表明,經(jīng)修正后,SDG土壤密度儀的測試精度均有很大的提高,可以較好的反映填土的實(shí)際密度。4、結(jié)合現(xiàn)場填土密度檢測的特點(diǎn)及SDG土壤密度儀的使用要求,提出了一套標(biāo)準(zhǔn)化測試程序,為SDG土壤密度儀在填土密度檢測的應(yīng)用提供指導(dǎo),以推進(jìn)SDG土壤密度儀的實(shí)際工程應(yīng)用。
[Abstract]:The measurement of subgrade compaction by SDG soil densitometer is a new kind of nondestructive and rapid filling density detection technology, which can overcome the shortcomings of poor real-time and low detection efficiency of conventional testing methods, and is beneficial to the dynamic control of field filling quality. But the domestic related research is relatively few, is still in the exploration stage. Therefore, combining with the testing items of Changshu and Kunshan Engineering testing Center, through field test and indoor simulation test, a series of influencing factors of soil density detection by SDG soil density meter are analyzed in detail. Furthermore, the reliability of rapid detection of soil compaction by SDG soil densitometer under the conditions of plain clay, solidified soil, silt, sand and so on is evaluated. According to the different testing requirements of construction units and quality inspection units, a correction method of SDG soil density measurement error under various soil quality conditions is established. At the same time, according to the characteristics of SDG soil density meter, a set of standardized test program is established. In order to provide guidance for the practical application of SDG soil densitometer, this paper studies systematically the preposition parameters of SDG soil densitometer by simulating the field soil fill density measurement in laboratory, and analyzes the function of the preposition parameters in the SDG soil density meter test. Furthermore, the paper simulates the environmental factors in the field compactness test, analyzes the influence of these environmental factors on the dry density of SDG soil density meter, and provides a theoretical basis for establishing a standardized test program, which is based on Changshu. A large amount of SDG soil density meter and sand irrigation test data were obtained in the project of Kunshan Engineering testing Center under different soil quality in the field. On the basis of this, the results of SDG soil density measurement under common soil conditions, such as plain clay, silt, solidified soil, sand and so on, were statistically analyzed, and the relevant statistical indexes were obtained. Therefore, the reliability of SDG soil densitometer under different soil quality was evaluated scientifically and reasonably. The error source and expression form of SDG soil densitometer were analyzed by comparing the dry density of SDG soil densitometer with that of sand filling method. On the basis of this, two kinds of SDG soil density correction methods, the compensation method and the whole correction model, are put forward, and the effect of the correction is tested. The results show that the precision of SDG soil density meter has been greatly improved, and it can reflect the actual density of fill. 4. Combined with the characteristics of field soil density detection and the application requirements of SDG soil density meter, A set of standardized test program is proposed to provide guidance for the application of SDG soil density meter in soil filling density measurement, in order to promote the practical engineering application of SDG soil density meter.
【學(xué)位授予單位】：蘇州科技學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U416.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王志強(qiáng);孫巖;錢光磊;;用無核土壤密度儀測定壓實(shí)度[J];油氣田地面工程;2010年12期

2 李宇淮;蔣凱鋒;;瑞雷面波法在路基壓實(shí)度檢測中的應(yīng)用[J];交通標(biāo)準(zhǔn)化;2009年21期

3 黃雄;林荃;陳靜;;土工擊實(shí)試驗(yàn)中預(yù)估最優(yōu)含水率的方法[J];水運(yùn)工程;2009年07期

4 聶祖娟;;淺析路基檢測方法的探討[J];安徽建筑;2008年02期

5 葉萬忠;;核子密度儀在壓實(shí)度檢測中的應(yīng)用[J];河南科技;2007年11期

6 徐平;蔡迎春;陳忠平;王復(fù)明;;FWD和BB在路基檢測中的對比分析[J];公路;2007年10期

7 王復(fù)明;蔡迎春;鐘燕輝;張蓓;;落錘式彎沉儀(FWD)在土基沖擊壓實(shí)效果檢測評價中的應(yīng)用[J];公路交通科技;2006年04期

8 鄭向雷;陳星光;盛曉軍;;FWD測試技術(shù)及其應(yīng)用研究[J];青海交通科技;2006年01期

9 楊怡,陳夢成,雷茂錦;核子密度儀在高速公路中的應(yīng)用[J];公路與汽運(yùn);2005年05期

10 李青山,張獻(xiàn)民,李紅英;路基壓實(shí)度的瞬態(tài)瑞雷波檢測法[J];河北工業(yè)大學(xué)學(xué)報;2003年05期

相關(guān)碩士學(xué)位論文 前3條

1 趙江;路基壓實(shí)度動測方法的研究[D];湖南大學(xué);2005年

2 竇光武;FWD測試技術(shù)在填石路基質(zhì)量檢測中的應(yīng)用研究[D];長安大學(xué);2004年

3 居彩梅;車載式壓實(shí)度檢測儀[D];長安大學(xué);2001年

，

本文編號：2096925