Assessing mechanical response of CO2 storage into a depleted carbonate reef using a site-scale geomechanical model calibrated with field tests and InSAR monitoring data

In order to improve the durability of the asphalt pavement on a cement concrete bridge, this study investigated the effect of the modulus of the asphalt mixture at the bottom layer on the mechanical response of bridge pavement, along with a type of emerging bridge pavement structure. In addition, the design method and pavement performance of a high-modulus asphalt mixture were investigated using laboratory and field tests, and the life expectancy of the deck pavement structure was predicted based on the rutting deformation. The results showed that the application of a high-modulus asphalt mixture as the bottom asphalt layer decreased the stress level of the pavement structure. The new high-modulus asphalt mixture displayed excellent comprehensive performance, i.e., the dynamic stability reached 9632 times/mm and the fatigue life reached 1.65 million cycles. Based on the rutting depth prediction, using high-modulus mixtures for the bridge pavement prolonged the service life from the original 5 years to 10 years, which significantly enhanced the durability of the pavement structure. These research results could be of potential interest for practical applications in the construction industry.

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Subsurface Investigation

Advances in Civil and Industrial Engineering - Technology and Practice in Geotechnical Engineering ◽

10.4018/978-1-4666-6505-7.ch012 ◽

2015 ◽

pp. 744-795

Keyword(s):

Field Tests ◽

Field Investigation ◽

Soil Parameters ◽

Near Surface ◽

Ground Investigation ◽

Geophysical Techniques ◽

Vertical Profiling ◽

Sample Recovery ◽

Subsurface Investigation ◽

A Site

A good knowledge about a site including its subsurface conditions is very important in its safe and economical development. It is therefore an essential preliminary to the construction of any civil engineering work. This chapter outlines the objectives of site characterization and the general objectives of geotechnical investigation. It discusses the phases of field investigation and the stages of a full exploratory program including methods of sample recovery and field tests and sampling methods. Geophysical techniques can contribute very greatly to the process of ground investigation by allowing an assessment, in qualitative terms, of the lateral variability and vertical profiling of the near-surface materials beneath a site. Some of these geophysical techniques are discussed in the chapter. Laboratory examination/verification and testing should be made of representative portions of the samples to establish appropriate soil parameters. Some soil parameters may be estimated by correlations. The results of the subsurface investigation and related testing, together with interpretations, discussions, and foundation recommendations, are usually presented in the form of a detailed soil report.

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Time-lapse Seismic AVP Analysis on the Sleipner CO2 Storage Monitoring Data Using CFP Processing

72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010 ◽

10.3997/2214-4609.201401003 ◽

2010 ◽

Author(s):

F. P. Neele ◽

R. J. Arts

Keyword(s):

Co2 Storage ◽

Time Lapse ◽

Monitoring Data

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Reservoir Geology of the Utsira Sand in the Southern Viking Graben Area - a Site for Potential CO2 Storage

62nd EAGE Conference and Exhibition - Special Session on CO2 ◽

10.3997/2214-4609.201406089 ◽

2000 ◽

Author(s):

R. J. Arts ◽

P. Zweigel ◽

A. E. Lothe

Keyword(s):

Co2 Storage ◽

A Site

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Study on Blasting Seismic Effect of Tunnel in Fault Formation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.446-449.2336 ◽

2012 ◽

Vol 446-449 ◽

pp. 2336-2339

Author(s):

Fu Qiang Gao

Keyword(s):

Stress Wave ◽

Seismic Wave ◽

Damage Control ◽

Field Tests ◽

Seismic Effect ◽

Monitoring Data ◽

Blasting Vibration ◽

Propagation Characteristics ◽

Rock Tunnel ◽

Vibration Damage

Based on the propagation characteristics of stress wave in crack rock, the propagation laws of seismic wave in fault formation were studied, and the field tests were carried out on Guanjiao tunnel of Qinghai-Tibet railway. The monitoring data of blasting vibration indicate that cracks prevent the propagation of seismic wave and the peak velocities of seismic wave attenuate rapidly in fault formation. The findings provide a reference on blasting vibration damage control in rock tunnel.

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Analysis of Bearing Characteristics of Energy Pile Group Based on Exponential Model

Energies ◽

10.3390/en14216881 ◽

2021 ◽

Vol 14 (21) ◽

pp. 6881

Author(s):

Lichen Li ◽

Longlong Dong ◽

Chunhua Lu ◽

Wenbing Wu ◽

Minjie Wen ◽

...

Keyword(s):

Analytical Model ◽

Load Transfer ◽

Mechanical Response ◽

Field Tests ◽

Pile Group ◽

Exponential Model ◽

Heating Process ◽

Thermal Cycles ◽

Energy Pile ◽

The Cost

Energy piles are an emerging energy technology for both structural and thermal purposes. To support structure load, piles are always used in groups with raft; however, the cost and complexity of field tests and numerical modelling limits the research on the bearing characteristics of energy pile group. In this paper, exponential model was applied to simulate the thermo-mechanical soil-pile interaction of energy pile group. Axial load transfer (τ-z) analysis was first performed to calculate the shear stress distribution in the soil, then matrix displacement method was introduced to determine the thermo-mechanical response of energy pile group. The validity of the analytical model was tested against field tests and numerical results. A case study was further performed to analyze the influence of thermal cycles and arrangement of thermally active piles on the bearing response of the whole pile group. Test results show that with the thermally activated pile in pile group, (1) differential settlement increases with thermal cycle numbers; (2) the axial force of thermally active pile increases during heating process and decreases during cooling process, and this trend varies for the surrounding nonthermal piles; (3) induced load on thermal pile increases with thermal cycles, but decreases for nonthermal piles. The proposed analytical model is expected to serve as a simple and convenient alternative for the preliminary analysis on the bearing characteristics of energy group pile.

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