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| 1 | Application of microbially induced carbonate precipitation to form biocemented artificial sandstone显示文摘It is difficult to collect and characterise well-preserved samples of weakly-cemented granular rocks as conventional sampling techniques often result in destruction of the cementation.An alternative approach is to prepare synthetic geomaterials to match required specifications.This paper introduces microbially induced carbonate precipitation(MICP)as a method to reliably deliver artificiallycemented specimens with customised properties,closely resembling those of soft carbonate sandstones.The specimens are generated from materials with two highly different particle size distributions(PSDs)to access a range of achievable combinations of strengths and porosities.The MICP parameters are kept constant across all samples to obtain similar calcium carbonate characteristics(size of individual crystals,type,etc.),while injected volume is varied to achieve different cementation levels.Although uniform cementation of very coarse sands has been considered very difficult to achieve,the results show that both the fine and coarse sand specimens present high degrees of uniformity and a good degree of repeatability.The unconfined compressive strengths(UCSs)(less than 3000 kPa)and porosities(0.25e0.4)of the artificial specimens fall in the same range of values reported for natural rocks.The strength gainwas greater in the fine sand than that in the coarse sand,as the void size in the latter was significantly larger compared to the calcium carbonate crystals’size,resulting in precipitation on less effective locations,away from contacts between particles.The strengths and porosities obtained for the two sands in this work fall within ranges reported in the literature for natural soft rocks,demonstrating theMICP technique is able to achieve realistic properties and may be used to produce a full range of properties by varying the grain sizes,and possibly the width of PSD. | Charalampos Konstantinou Giovanna Biscontin Ning-Jun Jiang Kenichi Soga | 2021 | Journal of Rock Mechanics and Geotechnical Engineering2021，13，3： | 3 |
| 2 | Probabilistic soilidentification based on cone penetration tests显示文摘 | Jung B C Gardoni P Biscontin G | 2008 | Geotechnique2008，58，7： | 1 |
| 3 | Seafloor-Riser Interaction Model显示文摘 | CP Aubeny G Biscontin | 2009 | International Journal of Geomechanics2009，9，3： | 1 |
| 4 | Vibrations of Steel-concrete Composite Beams显示文摘 | BISCONTIN G MORASSI A WENDEL P | 2000 | Journal of Vibration and Control2000，6，5： | 1 |
| 5 | Design Process of Deep Soil Mixed Walls for Excavation Support显示文摘 | RUTHERFORD C J BISCONTIN G KOUTSOFT- AS D | 2007 | International Journal of Geoengineering Case Histories2007，1，2： | 1 |
| 6 | Vibrations of steel-concrete composite beams显示文摘 | Biscontin G Morassi A Wendel P | 2000 | Journal of Vibration and Control2000，6，5： | 1 |
| 7 | Evaluation of cleaning procedures on the facades of the Bank of Greece historical building in the center of Athens显示文摘 | A Moropoulou Th Tsiourva K Bisbikou V Tsantila G Biscontin G Longega M Groggia E Dalaklis A Petritaki | 2002 | Building and Environment2002，，7： | 1 |
| 8 | Development of a multidirectional simple shear testing device 显示文摘 | RUTHERFORD C J BISCONTIN G | 2013 | Geotechnical Testing Journal2013，36，6： | 1 |
| 9 | Characterization and Reactivi- ty of Silicatic Consolidants显示文摘 | ] Zendri E Biscontin G Nardini I | 2007 | Construction and Building Materi- als2007，21，5： | 1 |
| 10 | Modeling cyclic behavior of lightly ovcreonsolidated clays in simple shear显示文摘 | Pestana J M Biscontin G Nadim F | 2000 | Soil Dynamics and Earthquake Engineering2000，19，： | 1 |
| 11 | Seismic triggering of submarine slides in soft cohesive soil deposits显示文摘 | G Biscontin J.M Pestana F Nadim | 2003 | Marine Geology2003，，3： | 1 |
| 12 | New miRNA labeling method for bead-based quantification显示文摘 | Biscontin A CasaraS Cagnin S | | 0，，： | 1 |
| 13 | Seismic triggering of submarine landslides in soft cohesive soil deposits显示文摘 | Biscontin G Pestana J M Nadim F | 2004 | Marine Geology2004，203，34： | 1 |
| 14 | Vibrations of steel- concrete composite beams显示文摘 | Biscontin G Morassi A Wendel P | 2000 | Journal of Vibration and Control2000，6，5： | 1 |
| 15 | Seafloor riser interaction model 显示文摘 | Aubeny C P Biscontin G | 2009 | International Journal of Geomechanics2009，9，3： | 1 |
| 16 | Seismic triggering of submarine slides in soft cohesive soil deposits显示文摘 | BISCONTIN G PESTANA J M NADIM B F | 2004 | Marine Geology2004，203，： | 1 |
| 17 | Seismic triggering of submarine slides in soft cohesive soil deposits显示文摘 | BISCONTIN G PESTANA J M NADIM F | 2004 | Marine Geology2004，203，： | 1 |
| 18 | Modeling Cyclic Behavior of Lightly of Overconsolidated Clays in Simple Shear显示文摘 | Pestana J M Biscontin G Nadim F Andersen K | 2000 | Soil Dynamics and Earthquake Engineering2000，，19： | 1 |
| 19 | 海洋细碎屑沉积物的多向单剪试验显示文摘海底陆坡对地震或风暴载荷的响应已经成为海上平台以及当地海啸灾害风险评估的一个重要因素。海底陆坡稳定性评价需要对土体的特性加以描述,而且要选择恰当的参数值。由于海洋沉积物样品的采集非常昂贵,所以海洋沉积物的土工资料很有限。 | Cassandra Rutherford. Giovanna Biscontin 杨丽娟(译) 闫章存(校对) | 2009 | 海洋地质2009，，1： | 0 |
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