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Long-term behavior and safety assessment of Sance Rockfill Dam

Marta DOLEZALOVA, Ivo HLADIK

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1, Pages 79-89 doi: 10.1007/s11709-010-0010-9

Abstract: assessment of the dam including slope stability analysis and estimation of the clay core cracking and hydraulicfracturing hazard.

Keywords： rockfill dam path dependence creep calibration cracking hydraulic fracturing hazard

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Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 937-947 doi: 10.1007/s11709-021-0754-4

Abstract: First, an analytical solution for fracturing pressure in two different concentric regions of soil wasThen, several triaxial hydraulic fracturing tests were carried out to validate the analytical solutionFirst, there is a linear relationship between the fracturing pressure and confining pressure in concentricthe internal-layer soil is softer than the external-layer soil, the presence of internal soil on the fracturingMoreover, the influence of strength distinction between the two layers on the fracturing pressure is

Keywords： hydraulic fracturing pressure layered cavity expansion theory triaxial fracturing test cohesive soil

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Experimental study on slurry-induced fracturing during shield tunneling

Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2, Pages 333-345 doi: 10.1007/s11709-021-0718-8

Abstract: Hydraulic fracturing may occur and cause a significant decrease in the support pressure if the slurryPreventing the occurrence of hydraulic fracturing in a slurry shield requires investigating the effectsof related influencing factors on the hydraulic fracturing pressure and fracture pattern.In this study, a hydraulic fracturing apparatus was developed to test the slurry-induced fracturing ofThe unconfined compressive strength of soil can reflect its ability to resist fracturing failure.

Keywords： slurry shield tunneling hydraulic fracturing test fracturing pressure fracture dip unconfined compressive

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Application of artificial fracturing for low permeable reservoir in Xianhe region

Xiao Shuming,Lv Zhiqiang,Guo Zhihua,Liu Xueqing

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 65-69

Abstract: the characteristics of low permeability and small porosity of high pressure low permeable reservoir, fracturingSince 2008, 79 fracturing mapping have been performed successfully in Xianhe region, which offers great

Keywords： fracturing mapping low permeability hydraulic fracturing

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Stress distribution in third subsidence belt

Yan Zhitao,Liu Jianzhong,Qiu Jinping,Jin Lihua

Strategic Study of CAE 2009, Volume 11, Issue 2, Pages 33-35

Abstract: justify;">Stress distribution in the third subsidence belt is presented , with great amounts of data on hydraulicfracture orientation obtained from monitoring hydraulic fracturing , and the direction of the maximum

Keywords： hydraulic fracturing monitoring with micro- seismics third subsidence belt direction of maximumprinciplestress hydraulic fracturing treatment

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Application of hydraulic fracturing techniques for CBM wells in Qinshui coal field

ou Jinglong,Liu Zhidong,Li Jianzhong

Strategic Study of CAE 2011, Volume 13, Issue 1, Pages 89-92

Abstract: "text-align: justify;">According to the CBM(coal bed methane) features and possible difficulties in fracturingtechniques, a new hydraulic fracturing method with casing injection, high output and activated water

Keywords： CBM(coal bed methane) natural joint adsorption hydraulic fracturing

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Horizontal effects in fracturing operation of coal bed methane in Qinshui,Shanxi Province

Li Mengxi,Zhang Cong

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 16-19

Abstract:

This paper describes horizontal effects of CBM (coal bed methane)fracturingfractures have adverse effects, including reduced production flow rate, depletion, and watering during fracturingThis discovery shows that the horizontal compression of fracturing could have adverse impact on productionof adjacent wells, and fracturing designer should be aware of it.

Keywords： coal bed methane fracture hydraulic fracturing

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Hydraulic winder safety design based on hazard analysis and risk assessment

Peng Youduo,Gao Guanghui,Guo Yingfu,Wu Lixin,Li Xin

Strategic Study of CAE 2010, Volume 12, Issue 2, Pages 70-75

Abstract:

In this paper, the safety capability was briefly introduced, the hazardanalysis and risk assessment through which the hazard value confirmed and the most important subsystemsAll the above work could provide theoretic foundation for safety reliability designing of hydraulic winder

Keywords： mine hydraulic winder safety design hazard analysis risk assessment safety reliability

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Microseismic monitoring technology

Tang Chunhua,Gu Guangqing

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 95-99

Abstract:

Microseismic (MS) monitoring is a hot topic in the applied geophysics recently. The MS mechanism and histories are introduced firstly in this article, and then the instruction of the MS equipment such as acquisition strategies, optimal sensors, array design, digital-signal processing, event location, velocity calibration, and monitoring deployment, is discussed. MS is a great technology with a long future, and we need to foster the understanding and acceptance of this technology.

Keywords： microseismic monitoring hydraulic fracturing oil and natural gas SNR (signal to noise ratio) event

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Features of seismic hazard in large dam projects and strong motion monitoring of large dams

Martin WIELAND,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1, Pages 56-64 doi: 10.1007/s11709-010-0005-6

Abstract: The different features of earthquake hazard are presented, i.e., ground shaking, faulting and mass movements

Keywords： seismic hazard arch dam concrete face rockfill dam strong motion instrumentation reservoir-triggered

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Interactions between the Design and Operation of Shale Gas Networks, Including CO₂ Sequestration

Sharifzadeh Mahdi,Xingzhi Wang,Nilay Shah

Engineering 2017, Volume 3, Issue 2, Pages 244-256 doi: 10.1016/J.ENG.2017.02.007

Abstract: the ultra-low permeability of shale gas reservoirs, special procedures such as horizontal drilling, hydraulicfracturing, periodic well shut-in, and carbon dioxide (CO₂) injection may be required inhighest shale gas production may not necessarily be the most profitable design; and that drilling, fracturing

Keywords： Shale gas Hydraulic fracturing Scheduling Well shut-in CO₂ sequestration Simultaneous optimization

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Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Venkatesh KODUR, M. Z. NASER

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1, Pages 46-60 doi: 10.1007/s11709-020-0676-6

Abstract: This paper reviews the fire problem in critical transportation infrastructures such as bridges and tunnels. The magnitude of the fire problem is illustrated, and the recent increase in fire problems in bridges and tunnels is highlighted. Recent research undertaken to address fire problems in transportation structures is reviewed, as well as critical factors governing the performance of those structures. Furthermore, key strategies recommended for mitigating fire hazards in bridges and tunnels are presented, and their applicability to practical situations is demonstrated through a practical case study. Furthermore, research needs and emerging trends for enhancing the “state-of-the-art” in this area are discussed.

Keywords： fire hazard bridges tunnels fire resistance mitigation strategies transportation infrastructure

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Predicting non-carcinogenic hazard quotients of heavy metals in pepper (

Marzieh Mokarram, Hamid Reza Pourghasemi, Huichun Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1331-0

Abstract: . • The target hazard quotient (THQ) indices followed the order of Pb>Zn>>Cd » Ni. • Relationships existregression method was then employed to determine the most optimal spectral bands for estimating the target hazard

Keywords： Heavy metals Plants Target Hazard Quotient (THQ) Principal Component Analysis (PCA) Random search Electromagnetic

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Geoenvironmental Hazard Risks and Monitoring Technologies for Marine Carbon Sequestration

Zhang Shaopeng, Liu Xiaolei, Cheng Guangwei, Zhu Chaoqi, Li Qingping, He Yufa

Strategic Study of CAE 2023, Volume 25, Issue 3, Pages 122-130 doi: 10.15302/J-SSCAE-2023.03.011

Abstract:

Marine carbon geological sequestration is crucial for achieving carbon peaking and carbon neutralization in China. However, there exist risks of carbon dioxide (CO2) leakage that leads to seabed geological disasters, severely threatening the safety of marine engineering. Therefore, it is of great practical significance to monitor the environmental geology of sequestration areas. This study briefly introduces several demonstration cases of marine carbon geological sequestration and explores the disaster mechanism associated with CO2 leakage in seabed sequestration areas. It also sorts out the marine environment monitoring technologies in typical CO2 controlled release tests via examples and analyzes the environmental geology monitoring technologies related to CO2 leakage, including seismic investigation and monitoring, resistivity monitoring, gravity monitoring, seabed deformation monitoring, and sediment pore pressure monitoring. Moreover, the prospects of China’s marine carbon geological sequestration and its environmental geology monitoring are presented. We suggest that long-time, low-cost, and real-time monitoring technologies should be developed, a systematic and intelligent multi-dimensional disaster identification model should be established in combination with the baseline investigation of the sequestration areas, and a multi-faceted, multi-level, and multi-disaster monitoring and forecasting system should be built.

Keywords： marine carbon geological sequestration environmental geology CO2 leakage hazard risks monitoring

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Necessity of integrated methodology for hazard mitigation of quake lakes: case study of the Wenchuan

Xudong FU, Fan LIU, Guangqian WANG, Wenjie XU, Jianxin ZHANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1, Pages 1-10 doi: 10.1007/s11709-011-0099-5

Abstract: More than half of these lakes were identified to be of moderate or high hazard levels, so activitiesneeded to be undertaken for hazard mitigation of potential flooding.presents the mitigation processes of quake lake hazards, which involve various techniques such as rapid hazardhydrologic and geological data and the nature of emergency situations raise substantial challenges in the hazardautomatic monitoring network, hydrologic models, and hydrodynamic models with a comprehensive indicator for hazard

Keywords： quake lake hazard mitigation dam failure emergency Tangjiashan