Quarterly Journal of Engineering Geology and Hydrogeology最新文献_第10页

Hydrogeology of a landslide: a case study in the Montagne de Reims (Paris basin, France) 滑坡的水文地质:以兰斯山(法国巴黎盆地)为例

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-21 DOI: 10.1144/qjegh2021-041

N. Bollot, Guillaume Pierre, A. Devos, P. Lutz, Sarah Ortonovi

{"title":"Hydrogeology of a landslide: a case study in the Montagne de Reims (Paris basin, France)","authors":"N. Bollot, Guillaume Pierre, A. Devos, P. Lutz, Sarah Ortonovi","doi":"10.1144/qjegh2021-041","DOIUrl":"https://doi.org/10.1144/qjegh2021-041","url":null,"abstract":"Investigations of hydric and hydrogeological mechanisms that contribute to the current reactivation of mass-movements feed predictive models that can be useful for risk management. Ours are based on an approach combining 1/ a large scale analysis of the landforms, using LiDAR imagery and field observations, 2/ a characterization of the groundwater (piezometry, conductivity and temperature), both in the landslide and in the stable slope, and 3/ electrical resistivity profiles. These combined data allow the reconstruction of the structure of the landslide to determine its influence on groundwater flow. The Saint Maur landslide bars the main aquifer of the Upper Ypresian sands whose slow flow results in lower piezometric level fluctuations and stronger mineralization than found in the unconfined aquifer on either side of the slip. The confined aquifer emptying occurs through the sliding plane so that the landslide aquifer is fed essentially by capillary rise from the shear plane and to a lesser extent by surface infiltration. Therefore, the amount of water in the landslide and the resulting probability of mass movement are weakly correlated with rainfall events. In addition, the wide dispersion of the conductivity values of the landslide aquifer reflects a weak mixing of the water. Groundwater circulation modelling allows to correct in situ – i.e. underground – the flows causing reactivations, and confirms stabilization by hydro-geological action to be more efficient than a surface drainage.Thematic collection: This article is part of the Role of water in destabilizing slopes collection available at: https://www.lyellcollection.org/cc/role-of-water-in-destabilizing-slopes","PeriodicalId":20937,"journal":{"name":"Quarterly Journal of Engineering Geology and Hydrogeology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42624005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Reply to the discussion on ‘Predicting tunnel boring machine penetration rate utilizing geomechanical properties’ by Karrari et al. 2022 (QJEGH, 55, qjegh2021-126) 对Karrari等人关于“利用地质力学特性预测隧道掘进机渗透率”的讨论的回复。2022（QJEGH，55，qjegh2021-126）

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-21 DOI: 10.1144/qjegh2022-070

Seyed Sajjad Karrari, M. Heidari, J. Hamidi, Mohammad Khaleghi-Esfahani, E. S. Teshnizi

引用次数: 0

Distinguishing Sources of Ammonium in Groundwater at Former Gasworks sites using Nitrogen Isotopes. 利用氮同位素鉴别前天然气厂场地地下水中铵的来源。

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-19 DOI: 10.1144/qjegh2021-139

R. Thomas, MJ Riding, Jdf Robinson, Sja Brown, C. Taylor

{"title":"Distinguishing Sources of Ammonium in Groundwater at Former Gasworks sites using Nitrogen Isotopes.","authors":"R. Thomas, MJ Riding, Jdf Robinson, Sja Brown, C. Taylor","doi":"10.1144/qjegh2021-139","DOIUrl":"https://doi.org/10.1144/qjegh2021-139","url":null,"abstract":"Ammonium is a common contaminant found in the soils and groundwater at former gasworks, associated with historical gas production and the storage and disposal of by-product. However, it can also be present in groundwater at gasworks sites from a variety of natural and other anthropogenic sources. This study evaluates the use of nitrogen isotope analysis at eight former gasworks sites in the UK, as a forensic tool to differentiate between ammonium from gasworks and non-gasworks sources. It also provides an understanding of how the parent coal, gas making technology and by-product processing can influence the presence of ammonium on a former gasworks and the importance of understanding the site layout when sampling.Results of this study indicate that, gasworks sources would be typically indicated by a δ15N of between -3.2‰ and +10.7‰, which correlate to published isotopic ranges specifically for coal and coal by-products. This broad range includes published values for the isotopic signature of parent coal (δ15N -3.2‰ to +6.3‰,), Coal pyrolysis residue/tar (δ15N +4.2‰ to +10.7‰,), gas purifier waste (δ15N +2‰ to +5‰) and coking works derived ammonium sulfate (δ15N -0.5‰). This suggests that gas purification waste may have a distinct isotopic range as compared to coal tar, a finding supported by results from Site A. Gasworks-sourced nitrogen typically had a lower δ15N value than non-gasworks sources and predominantly in the δ15N(NH4) form. This study demonstrates nitrogen isotope analysis, coupled with traditional hydrochemistry and a detailed site investigation and is shown to have potential for use as part of the environmental forensic toolkit.","PeriodicalId":20937,"journal":{"name":"Quarterly Journal of Engineering Geology and Hydrogeology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49105103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A revised hydrogeological conceptual model of the Fell Sandstone Aquifer, Northumberland and its impact on interpretation of long-term nitrate trends 诺森伯兰郡费尔砂岩含水层的修订水文地质概念模型及其对长期硝酸盐趋势解释的影响

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-19 DOI: 10.1144/qjegh2022-018

J. Dearlove, M. Swartz

引用次数: 1

Introduction to the Twenty-first Glossop Lecture 第21节Glossop课程简介

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-19 DOI: 10.1144/qjegh2022-071

D. French

引用次数: 0

The 21st Glossop Lecture: Engineering geology and the geoscience time machine 第21届Glossop讲座：工程地质学与地球科学时间机器

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-07 DOI: 10.1144/qjegh2022-026

D. Shilston

引用次数: 1

Discussion on ‘Predicting tunnel boring machine penetration rate utilizing geomechanical properties’ by Karrari et al. 2022 (QJEGH, 55, qjegh2021-126) 关于Karrari等人2022年“利用地质力学特性预测隧道掘进机钻速”的讨论(QJEGH, 55, qjegh2021-126)

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-06 DOI: 10.1144/qjegh2022-045

J. Nick Shirlaw

引用次数: 0

Study on mechanical degradation mechanism of rock under seismic disturbance stress 地震扰动应力作用下岩石力学退化机理研究

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-01 DOI: 10.1144/qjegh2022-007

Pan Yisha, Wang Chongyang, Wang Yidi

{"title":"Study on mechanical degradation mechanism of rock under seismic disturbance stress","authors":"Pan Yisha, Wang Chongyang, Wang Yidi","doi":"10.1144/qjegh2022-007","DOIUrl":"https://doi.org/10.1144/qjegh2022-007","url":null,"abstract":"During the action of periodic seismic disturbance stress, the rock mass surrounding buried structures will show fatigue damage under the action of cyclic load. In order to explore the fatigue characteristics and mechanical degradation mechanism of this kind of rock mass under seismic stress wave, fatigue loading and uniaxial compression tests were carried out on gypsum rock samples. The conclusions are as follows: With the increase of seismic wave amplitude, the stress loading and unloading velocity gradually increases, and the opening of the stress-strain hysteresis loop gradually increases; With the increase of seismic wave frequency, the dip Angle of hysteresis loops gradually incline to σ axis, and the variation amplitude of hysteresis loops on ε axis decreases gradually. It shows that the greater the amplitude of seismic wave, the lower the frequency, the greater the damage of rock. Under the seismic wave disturbance, with the increase of the number of disturbances, the original cracks in the sample gradually spread and infiltrated, and the secondary cracks gradually developed, indicating that the physical and mechanical properties of the rock gradually deteriorated under the seismic wave disturbance. There is a strong correlation between the acoustic emission phenomenon of samples and the stages of the stress-time curve in the whole process of uniaxial compression. According to the acoustic emission characteristics, the stress-time curve in the whole process of uniaxial compression can be divided into four stages: initial loading stage, stable crack growth stage, unstable crack growth to failure stage, and post-peak stage. Compared with the sample before fatigue, the peak strain decreases significantly and the impact energy index increases significantly after fatigue loading. It indicates that some original cracks in the sample are compressed under seismic disturbance, the brittleness of the sample is enhanced, and the rockburst tendency is greatly enhanced.","PeriodicalId":20937,"journal":{"name":"Quarterly Journal of Engineering Geology and Hydrogeology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45543028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Are measured InSAR displacements a function of the chosen processing method? 测量的InSAR位移是所选处理方法的函数吗?

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-07-01 DOI: 10.1144/qjegh2022-049

J. Scoular, R. Ghail, P. Mason, Jamesf . Lawrence

{"title":"Are measured InSAR displacements a function of the chosen processing method?","authors":"J. Scoular, R. Ghail, P. Mason, Jamesf . Lawrence","doi":"10.1144/qjegh2022-049","DOIUrl":"https://doi.org/10.1144/qjegh2022-049","url":null,"abstract":"The benefits of InSAR to the civil engineering industry have been demonstrated on many occasions, however there is still a limited uptake by end-users, due to perceived differences between data providers and uncertainty around how to interpret results. This paper critically compares three datasets for London: Radarsat-2 (RS2) from 2011 to 2015, TerraSAR-X (TSX) from 2011 to 2017, and Sentinel-1 (STL1) from 2015 to 2017. Two of the datasets (TSX & RS2) were processed by commercial data providers, while the STL1 data were processed using ENVI® SARscape® by the authors. The results show an inverse relationship between the Pearson Correlation Coefficient and absolute total displacement of Persistent Scatterers (PS). There is a strong correlation between datasets for total displacement greater than 5 mm, but a weak or no correlation in the 0-3 mm range. Consequently, standard commercial InSAR datasets, processed with no a priori knowledge of the area of interest, have error margins below 3-5 mm but correctly detect all deformation phenomena exceeding this threshold. RS2-TSX both capture the spatial extent of the investigated area of dewatering induced subsidence, however STL1 measures a much broader, less pronounced zone of heave than TSX.Thematic collection: This article is part of the Remote sensing for site investigations on Earth and other planets collection available at: https://www.lyellcollection.org/cc/remote-sensing-for-site-investigations-on-earth-and-other-planets","PeriodicalId":20937,"journal":{"name":"Quarterly Journal of Engineering Geology and Hydrogeology","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64018397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Innovative use of change detection in large numbers of satellite scenes, with geological applications 在大量卫星场景中创新使用变化检测，并具有地质应用

IF 1.4 4区工程技术

Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2022-06-10 DOI: 10.1144/qjegh2022-048

P. Cole, H. Coetzee

引用次数: 0