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| 1 | Unconfined compressive strength of MICP and EICP treated sands subjected to cycles of wetting-drying,freezing-thawing and elevated temperature:Experimental and EPR modelling显示文摘Microbial-induced carbonate precipitation(MICP)and enzyme-induced carbonate precipitation(EICP)are two bio-cementation techniques,which are relatively new methods of ground improvement.While both techniques share some similarities,they can exhibit different overall behaviours due to the differences in urease enzyme sources and treatment methods.This paper presented 40 unconfined compressive strength(UCS)tests of MICP and EICP treated sand specimens with similar average calcium carbonate(CaCO3)content subjected to cycles of wetting-drying(WD),freezing-thawing(FT)and elevated temperature(fire resistance test e FR and thermogravimetric analysis e TG).The average CaCO3 content after a certain number of WD or FT cycles(ACn)and their corresponding UCS(qn)reduced while the mass loss increased.The EICP treated sand specimens appeared to exhibit a lower resistance to WD and FT cycles than MICP treated specimens possibly due to the presence of unbonded or loosely bonded CaCO3 within the soil matrix,which was subsequently removed during the wetting(during WD)or thawing(during FT)process.FR test and TG analysis showed a significant loss of mass and reduction in CaCO3 content with increased temperatures,possibly due to the thermal decomposition of CaCO3.A complete deterioration of the MICP and EICP treated sand specimens was observed for temperatures above 600C.The observed behaviours are complex and theoretical understanding is far behind to develop a constitutive model to predict qn.Therefore,a multi-objective evolutionary genetic algorithm(GA)that deals with pseudo-polynomial structures,known as evolutionary polynomial regression(EPR),was used to seek three choices from millions of polynomial models.The best EPR model produced an excellent prediction of qn with a minimum sum of squares error(SSE)of 2.392,mean squared error(MSE)of 0.075,root mean square error(RMSE)of 0.273 and a maximum coefficient of determination of 0.939. | Isaac Ahenkorah Mizanur Rahman Rajibul Karim Simon Beecham | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023，15，5： | 2 |
| 2 | The effects of irrigation methods with effluent and irrigation scheduling on water use efficiency and corn yields in an arid region显示文摘 | Ali Morad Hassanli Mohammad Ali Ebrahimizadeh Simon Beecham | 2008 | Agricultural Water Management2008，，1： | 2 |
| 3 | Streetscape biodi-versity and the role of bioretention swales in an Australian urbanenvironment显示文摘 | Fatemeh Kazemi Simon Beecham Joan Gibbs | 2011 | Landscape and Urban Planning2011，101，2： | 1 |
| 4 | Streetscape biodiversity and the role of bioretention swales in an Australian urban environment显示文摘 | Fatemeh Kazemi Beecham Simon Gibbs Joan | 2011 | Landscape and Urban Planning2011，101，2： | 1 |
| 5 | The Role of Bioretention Systems in the Treatment of Stormwater显示文摘 | Georgina Laurenson Seth Laurenson Nanthi Bolan Simon Beecham Ian Clark | 2013 | Advances in Agronomy2013，，： | 1 |
| 6 | Measuring flows in partially-filled pipes in siphonic roof drainage systems显示文摘 | Ying Yan Qu Terry Lucke Simon Beecham | 2011 | J Metrology Soc India2011，26，4： | 1 |
| 7 | Cavitation, aeration and negative pressures in siphonic roof drainage systems 显示文摘 | Terry Lucke Simon Beecham | 2009 | Build Serv Eng Res Teehnol2009，30，2： | 1 |
| 8 | The effects of irrigation methods with effluent and irrigation scheduling on water use efficiency and corn yields in an arid region显示文摘 | Ali Morad Hassanli Mohammad Ali Ebrahimizadeh Simon Beecham | | 0，，96： | 1 |
| 9 | The Role of Bioretention Systems in the Treatment of Stormwater显示文摘 | Georgina Laurenson Seth Laurenson Nanthi Bolan Simon Beecham lan Clark | 2013 | Advances in Agronomy2013，120，15： | 1 |
| 10 | 用透水性路面改善城市径流的质量显示文摘为减少城市地表雨水径流峰值流量、改善水质,透水性路面常常被用作源头控制的工程技术措施。透水性路面在欧洲和美国已广泛应用,但在澳大利亚的进展却在减缓。本文探讨透水性路面对地表径流水中污染物去除率的影响,径流水样取自南澳大利亚的四个不同地方,涉及四种不同的土地用途。研究结果发现,透水性路面可显著降低总氮、总磷和总悬浮物,还可降低可溶解重金属的浓度,包括铅和铜。然而,因为污染物浓度很低、而且常常低于检测仪器的极限,很难计算出准确的金属削减比例。本文描述测试结果和透水性路面结构系统中可能存在的'净化'原理。还将污染物去除率与国际上已经开展相关研究、公布的结果,进行对比。最后,本文描述了透水性路面系统怎样才能最好地与综合处理系统相结合,以确保透水性路面具有长久的使用寿命和进行低成本有效的运营维护。总体来说,透水性路面可以为保护地下水和流入下游的地表水水质,提供有效屏障。 | Simon Beecham Elizabeth McIntyre 崔玉忠(译) 杜建东(校) | 2016 | 建筑砌块与砌块建筑2016，，5： | 0 |
| 11 | 澳大利亚透水混凝土连锁砖路面的应用经验显示文摘本文评估已在澳大利亚使用大约10年的透水混凝土连锁砖路面(PICP)的工况。每个评估结果都以现场对路面性能和服役性能进行严格检查为基础,并以实验室测试数据作为补充。所研究的因素包括:路面渗透速率、结构性能、使用表现、寿命和实际渗透系数,也检查沉积物负荷的影响与路面砖路面的堵塞情况。所调研的大多数路面砖路面都没有经过例行修复和系统维护,尽管如此,经过最长10年的使用,大部分路面砖路面工程仍然具有良好的渗水能力。研究结果表明,对路面进行清扫有利于水的渗透;实验室试验证实了最细颗粒的沉积物会聚集在填缝材料的上部。总体来说,透水混凝土路面砖路面的日常清扫工作,并没有必要像北半球国家那样需要经常进行,至少在澳大利亚的环境条件下是这样。 | Beecham Simon Pezzaniti David Myers Baden Shackel Brian Pearson Alan 崔玉忠 | 2012 | 建筑砌块与砌块建筑2012，，2： | 0 |
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