Biogeotechnics最新文献

Announcement: Winner of the 2025 Biogeotechnics Lecture Award 公告：2025年生物岩土技术讲座奖得主

Biogeotechnics Pub Date : 2025-09-17 DOI: 10.1016/j.bgtech.2025.100202

引用次数: 0

Antlion sand interaction: A study of repose angle 安托利亚沙相互作用：休止角研究

Biogeotechnics Pub Date : 2025-09-02 DOI: 10.1016/j.bgtech.2024.100142

Ali Maroof

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Erratum regarding updating Declaration of Competing Interest statements in previously published articles 关于更新先前发表的文章中的竞争利益声明的勘误表

Biogeotechnics Pub Date : 2025-03-19 DOI: 10.1016/j.bgtech.2025.100177

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Progress and prospect of biomimetic optical materials: A review 仿生光学材料的研究进展与展望

Biogeotechnics Pub Date : 2025-02-22 DOI: 10.1016/j.bgtech.2025.100167

Dashuang Wang , Tuo Ping , Zhilan Du , Tingye Liu , Yuxin Zhang

{"title":"Progress and prospect of biomimetic optical materials: A review","authors":"Dashuang Wang , Tuo Ping , Zhilan Du , Tingye Liu , Yuxin Zhang","doi":"10.1016/j.bgtech.2025.100167","DOIUrl":"10.1016/j.bgtech.2025.100167","url":null,"abstract":"<div><div>Recent advances in bionic optical materials (BOMs) are systematically reviewed, emphasizing bioinspired strategies derived from natural models such as plant epidermis, aquatic organisms, avian plumage, and insect photonic architectures (e.g., butterfly wings and inverse opal structures). These biological systems exhibit sophisticated light manipulation mechanisms, including absorption, scattering, and structural coloration, which have guided the design of novel extinction materials with tunable optical properties. By mimicking hierarchical structures and dynamic light-regulation principles, researchers have developed BOMs exhibiting exceptional broadband extinction performance. Notably, applications in optical sensing and imaging systems are critically discussed, highlighting their role in enhancing camera sensitivity and adaptive optical sensor design. Furthermore, this review identifies emerging trends in nanofabrication, machine learning-assisted optimization, and biohybrid material systems. The integration of cross-disciplinary approaches is projected to accelerate the development of multifunctional BOMs, paving the way for breakthroughs in adaptive optics, environmental monitoring, and intelligent photonic devices. In the future, the integration of BOMs and distributed fiber optic sensing technology is expected to realize the whole-life optical monitoring of pile foundation structural health, and promote the development of geotechnical engineering in the direction of intelligence and high precision.</div></div>","PeriodicalId":100175,"journal":{"name":"Biogeotechnics","volume":"3 3","pages":"Article 100167"},"PeriodicalIF":0.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A large-scale study on solidification of gold tailings based on microbially induced carbonate precipitation (MICP) 基于微生物诱导碳酸盐沉淀（MICP）的金尾矿固化大规模研究

Biogeotechnics Pub Date : 2025-01-26 DOI: 10.1016/j.bgtech.2025.100164

Yaoting Duan , Qin Yuan , Caiqi Yu , Chunli Zheng

{"title":"A large-scale study on solidification of gold tailings based on microbially induced carbonate precipitation (MICP)","authors":"Yaoting Duan , Qin Yuan , Caiqi Yu , Chunli Zheng","doi":"10.1016/j.bgtech.2025.100164","DOIUrl":"10.1016/j.bgtech.2025.100164","url":null,"abstract":"<div><div>One of the major challenges in the application of microbially induced carbonate precipitation (MICP) is achieving \"bacteria freedom\", as it necessitates a substantial volume of bacterial solutions. Nevertheless, both in-situ bacterial cultivation and transportation of bacterial solutions have proven to be inefficient. In this study, we suggested the utilization of bacteria in the form of dry powder, enabling easy on-site activation and achieving a relatively high urease activity. We conducted MICP curing experiments on gold mine tailings (GMT) using steel slag (SS) as an additive. The results showed that the average unconfined compressive strength (UCS) values of the tailings treated with MICP and MICP+SS reached 0.51 and 0.71 MPa, respectively. In addition, the average leaching reduction rates of Cu, Pb, Cr, Zn, and T-CN in GMT after MICP treatment reached 98.54%, 100%, 70.94%, 59.25%, and 98.02%, respectively, and the average reduction rates after MICP+SS treatment reached 98.77%, 100%, 88.03%, 72.59%, and 98.63%, respectively. SEM, XRD, FT-IR analyses, and ultra-deep field microscopy results confirmed that the MICP treatment produced calcite-based calcium carbonate that filled the inter-tailing pores and cemented them together, and the hydration mechanism was the main reason for the increased curing efficiency of SS. Our research findings demonstrate that bacterial powder can efficiently achieve the objectives of heavy metal removal and tailing solidification. This approach can substantially decrease the expenses associated with bacterial cultivation and solution transportation, thereby playing a crucial role in advancing the practical implementation of MICP.</div></div>","PeriodicalId":100175,"journal":{"name":"Biogeotechnics","volume":"3 3","pages":"Article 100164"},"PeriodicalIF":0.0,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diatom-driven activation of in-situ lunar resource utilization for space farming 以硅藻为驱动的月球原位资源利用激活技术

Biogeotechnics Pub Date : 2025-01-16 DOI: 10.1016/j.bgtech.2025.100162

Dong Liu , Yuxin Zhang

引用次数: 0

Advanced bioinspired cellular confinement systems for improving the performance of reinforced soil beds 先进的生物激励细胞约束系统，用于改善加固土壤床的性能

Biogeotechnics Pub Date : 2024-12-20 DOI: 10.1016/j.bgtech.2024.100160

Yang Zhao , Zheng Lu , Abdollah Tabaroei , Chuxuan Tang , Yinuo Feng , Hailin Yao

{"title":"Advanced bioinspired cellular confinement systems for improving the performance of reinforced soil beds","authors":"Yang Zhao , Zheng Lu , Abdollah Tabaroei , Chuxuan Tang , Yinuo Feng , Hailin Yao","doi":"10.1016/j.bgtech.2024.100160","DOIUrl":"10.1016/j.bgtech.2024.100160","url":null,"abstract":"<div><div>With the major developments that occurred during the past 40 years in the geotechnical engineering field, the usage of reinforcements in soils has been very common to improve the ultimate bearing capacity and reduce the footing settlements. These reinforcements consist of geogrids, geotextiles, geocells, etc., all of which are in the geosynthetic family. Among these geosynthetic families, geocell performs better in soil-reinforced beds. In this study, we proposed the nine types of bioinspired geocells to improve the soil beds. For this purpose, a total of twenty numerical models were calculated via FLAC<sup>3D</sup> after validating the laboratory model tests in the literature. The numerical results demonstrated that, except for the circular type, the performance of other geocell forms regarding increased bearing capacity was nearly identical. Regarding diffusion angles, only the circular and honeycomb geocells exhibited larger diffusion angles. The opening pocket diameter more significantly influenced the stress and strain of geocells. Geocells with nearly circular shapes, such as circular, honeycomb, hexagonal, and square, typically demonstrated higher confining stresses within the geocell walls. Conversely, for shapes that deviate from the circular form, such as diamond, re-entrant, and double V-shaped designs, the irregularity of the pocket shape could cause an uneven distribution of confining stresses, potentially leading to higher normal deformations at some specific areas and stress concentration at the wall joints.</div></div>","PeriodicalId":100175,"journal":{"name":"Biogeotechnics","volume":"3 3","pages":"Article 100160"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bio-molding of lunar regolith with bio-carbonized magnesium oxide 生物碳化氧化镁在月球风化层中的生物成型

Biogeotechnics Pub Date : 2024-12-20 DOI: 10.1016/j.bgtech.2024.100159

Jinquan Shi, Zihao Xiao, Yang Xiao, Hanlong Liu

{"title":"Bio-molding of lunar regolith with bio-carbonized magnesium oxide","authors":"Jinquan Shi, Zihao Xiao, Yang Xiao, Hanlong Liu","doi":"10.1016/j.bgtech.2024.100159","DOIUrl":"10.1016/j.bgtech.2024.100159","url":null,"abstract":"<div><div>As lunar exploration develops, lunar construction is increasingly prominent and the in-situ lunar regolith molding becomes a technical challenge. This study proposes a lunar regolith molding technology based on biocarbonated magnesium oxide (MgO) with urea pre-hydrolyzed, which has the potential to achieve an unconfined compressive strength (UCS) of approximately 10 MPa after 24 h of curing. The study investigates the physical and mechanical properties of biocarbonated lunar regolith samples with varying urea concentrations, bacterial concentrations, and MgO contents. Scanning electron microscopy (SEM) was employed to examine the microstructural properties of the samples. The results demonstrated that the maximum UCS and E<sub>50</sub> were achieved at a urea concentration of 1.0 mol/L, a bacterial concentration of 1.0, and a MgO content of 15%. However, the carbonate content test indicated that the highest urea efficiency was observed at 10% MgO. Microscopic images show that the produced hydromagnesite is the most structured at the urea concentrations of 1.0 mol/L and 2.0 mol/L, corresponding well with the strength performance of the specimens. The pre-hydrolysis method can promote the efficiency of biocarbonated magnesium oxide but it highly depends on the concentration of the produced carbonate. Conclusively, the findings of this study offer a promising avenue for lunar regolith molding.</div></div>","PeriodicalId":100175,"journal":{"name":"Biogeotechnics","volume":"3 4","pages":"Article 100159"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-temporal-resolution ERT characterization for vegetation effects on soil hydrological response under wet-dry cycles 干湿循环下植被对土壤水文响应影响的高时间分辨率ERT表征

Biogeotechnics Pub Date : 2024-12-02 DOI: 10.1016/j.bgtech.2024.100155

Wei Yan , Weiming Xu , Taosheng Huang , Ping Shen , Wan-Huan Zhou

{"title":"High-temporal-resolution ERT characterization for vegetation effects on soil hydrological response under wet-dry cycles","authors":"Wei Yan , Weiming Xu , Taosheng Huang , Ping Shen , Wan-Huan Zhou","doi":"10.1016/j.bgtech.2024.100155","DOIUrl":"10.1016/j.bgtech.2024.100155","url":null,"abstract":"<div><div>Characterization of vegetation effect on soil response is essential for comprehending site-specific hydrological processes. Traditional research often relies on sensors or remote sensing data to examine the hydrological properties of vegetation zones, yet these methods are limited by either measurement sparsity or spatial inaccuracy. Therefore, this paper is the first to propose a data-driven approach that incorporates high-temporal-resolution electrical resistivity tomography (ERT) to quantify soil hydrological response. Time-lapse ERT is deployed on a vegetated slope site in Foshan, China, during a discontinuous rainfall induced by Typhoon Haikui. A total of 97 ERT measurements were collected with an average time interval of 2.7 hours. The Gaussian Mixture Model (GMM) is applied to quantify the level of response and objectively classify impact zones based on features extracted directly from the ERT data. The resistivity-moisture content correlation is established based on on-site sensor data to characterize infiltration and evapotranspiration across wet-dry conditions. The findings are compared with the Normalized Difference Vegetation Index (NDVI), a common indicator for vegetation quantification, to reveal potential spatial errors in remote sensing data. In addition, this study provides discussions on the potential applications and future directions. This paper showcases significant spatio-temporal advantages over existing studies, providing a more detailed and accurate characterization of superficial soil hydrological response.</div></div>","PeriodicalId":100175,"journal":{"name":"Biogeotechnics","volume":"3 2","pages":"Article 100155"},"PeriodicalIF":0.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact behavior and strain rate effects of artificial limestone by MICP 人工石灰石的冲击行为及应变速率效应

Biogeotechnics Pub Date : 2024-11-22 DOI: 10.1016/j.bgtech.2024.100154

Yaru Lv , Lin Wu , Zhigang Duan , Yuchen Su , Dongdong Zhang

{"title":"Impact behavior and strain rate effects of artificial limestone by MICP","authors":"Yaru Lv , Lin Wu , Zhigang Duan , Yuchen Su , Dongdong Zhang","doi":"10.1016/j.bgtech.2024.100154","DOIUrl":"10.1016/j.bgtech.2024.100154","url":null,"abstract":"<div><div>Natural cemented calcareous sand and limestone are highly complex and not well understood in terms of the mechanical behavior due to the difficulty of obtaining undisturbed samples from far sea. This paper proposes an artificial method in a laboratory setting using microbial-induced carbonate precipitation (MICP) to simulate the natural process of cementation of limestone. The artificially cemented sand has a high degree of similarity with the natural weakly limestone in three aspects: (1) the mineral composition of the cemented material is also granular calcite and acicular aragonite; (2) the microstructure in interconnected open pore network can be gradually closed and contracted with cementation. The porosity reaches to approximately 9.2%; (3) both the stress-strain relationship and the unconfined strength closely resemble that of natural weakly limestone. Furthermore, both static and dynamic behaviors of artificial limestone were studied by quasi-static compression tests and Split Hopkinson Pressure Bar (SHPB) tests, finding that the unconfined strength of weakly artifical limestone exponentially increases with increasing strain rate. A rate-dependent bond strength was proposed and implemented in software to reveal the mechanism of strain rate effects. It is found that the loading velocity is too high to keep in sync with the initiation and propagation of cracks under impact loading. This delay-induced viscosity may restrict the movement of the surrounding balls, thus increasing resistance.</div></div>","PeriodicalId":100175,"journal":{"name":"Biogeotechnics","volume":"3 2","pages":"Article 100154"},"PeriodicalIF":0.0,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0