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Representative batch of cement fly ash gravel piles for inspection
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Performance of Cement-Fly Ash-Gravel Pile-Supported …
The Beijing-Tainjin high-speed railway were constructed between two major cities in China. Since part of the railway is over soft marine clay, appropriate ground improvement, cement-fly ash-gravel piles, was selected to improve the soft marine clay to meet technical requirements for the high-speed railway. This article presents the field …
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Lateral displacement of silty clay under cement-fly ash-gravel pile …
The field deformation analysis results show that 1) the combined reinforcement of CFG piles and geosynthetic layer perform well in terms of reducing lateral displacements; 2) the development of lateral displacements lags behind the increase of fill load, which can be attributed to the vertical load transfer mechanism of the pile foundation; and ...
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(PDF) Geometric Reliability Analysis of Composite Foundations
Geometric Reliability Analysis of Composite Foundations Comprising Cement–Fly Ash–Gravel Piles at Site-Specific Scale May 2020 Journal of Testing and Evaluation
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Influencing Factors and Optimization Design of Cement Fly …
Influencing Factors and Optimization Design of Cement Fly-Ash Gravel Pile. Abstract: CFG pile composite foundation treatment technology is one of the most commonly used …
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Differential Settlements of Embankment Treated by Cement Fly-Ash Gravel
To solve this problem, cement fly-ash gravel (CFG) piles are used to control settlements because of their simple construction. Sheet piles, which are mainly used in railway subgrade construction, can provide greater load performance and reduce settlement. The main objectives of this study were (1) to compare the settlement-controlling ...
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Bearing Capacity Characteristics of Compacted Cement Stabilized Gravel
The track structure of a high-speed railway has high precision, when the subgrade is the carrier of the track structure, it must have sufficient strength, stiffness and deformation resistance [1, 2].According to different geological conditions, the composite foundation of compaction pile, CFG (Cement-fly ash-graved) pile, DDC (Downhole …
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Differential Settlement of Cement Fly-Ash Gravel and …
Based on the test section of Yinxi high-speed Railway and the finite element method, the differential settlement problem of CFG (cement fly-ash crushed stone) pile …
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Behavior and Numerical Evaluation of Cement-Fly Ash-Gravel Pile …
AbstractThis study presents a full-scale test of high-speed railway embankments to investigate the performance of cement-fly ash-gravel (CFG) pile-supported embankments over completely decomposed g... **Attention ASCE Customers** Due to ASCE's annual year-end inventory count, all Print Book, CD, and DVD orders …
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Differential Settlements of Embankment Treated by Cement Fly-Ash Gravel
DOI: 10.1061/(ASCE)GM.1943-5622.0000995 Corpus ID: 134702614; Differential Settlements of Embankment Treated by Cement Fly-Ash Gravel Pile and Sheet Pile in Freeway Extension Constructions
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(PDF) Probabilistic analysis of site-specific load …
Cement-fly ash-gravel (CFG) pile is one of the novel ground improvement types. It is 8 . attracting considerable attention, as its beneficial role in accessible soft foundations is being 9 .
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Geometric reliability analysis of composite foundations …
86 Construction Research Institute (BBCRI) for a composite foundation formed by cement fly ash 87 gravel (CFG) piles [16,17]. The CFG pile foundation with a cushion is also denoted by pile−soil
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(PDF) Probabilistic analysis of site-specific load …
2 Probabilistic analysis of site-specific load-displacement behaviour of cement-fly ash-gravel piles 3 Xing Zheng Wu 1 Jun-xia Xin2 4 1 College of Civil Engineering and Architecture, Hebei University, 180 East Wusi Road, Baoding, Hebei 071002, China 5 6 2 Geotechnical Engineering Group, Beijing Building Construction Research Institute, …
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Probabilistic analysis of site-specific load-displacement …
A CFG pile is formed by drilling a continuous flight auger (CFA) into the ground and, upon reaching the required depth, pumping cement, fly ash, and gravel …
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Performance of Geosynthetic‐Reinforced and Cement‐Fly …
This paper presents a full-scale test of the high-speed railway embankment to investigate the performance of cement-fly ash-gravel (CFG) pile-supported …
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CFG Pile Composite Foundation: Its Engineering Applications …
Cement-fly ash-gravel (CFG) piled composite foundation is a part of it where the by-product fly ash is used as a constituent material to improve poor …
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Performance of Cement-Fly Ash-Gravel Pile-Supported …
Since part of the railway is over soft marine clay, appropriate ground improvement, cement-fly ash-gravel piles, was selected to improve the soft marine clay to meet technical requirements for the high-speed railway. This article presents the field measurements in the railway embankment project including the load distribution …
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Study on Optimization of Design Parameters for Composite Foundation
Based on theoretical analysis and experimental result, the principle as well as the interaction between pile and soil, the design parameters of composite foundation with cement-fly ash-gravel ...
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The Research on Treating Collapsible Loess by Down Whole …
The core technique of CFG-pile(cement fly-ash gravel pile) composite foundation is the setting of cushion, of which the rationality will greatly affect the foundation carrying capacity and ...
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Bearing capacity and mechanical behavior of CFG pile …
CFG pile (i.e., pile constructed by granular materials of cement, fly-ash and gravel) composite foundation is applied in subsoil treatment widely and successfully. In order to have a further study of this kind of subsoil treatment technology, the influencing factors and calculation methods of the vertical bearing capacity of single CFG pile and …
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Bearing Capacity Characteristics of Compacted Cement Stabilized Gravel
DOI: 10.1007/s42947-022-00226-2 Corpus ID: 251696810; Bearing Capacity Characteristics of Compacted Cement Stabilized Gravel Pile Composite Foundation @article{Gao2022BearingCC, title={Bearing Capacity Characteristics of Compacted Cement Stabilized Gravel Pile Composite Foundation}, author={Fei Gao …
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Comparative Study of Existing Cement Fly Ash Gravel pile …
The treatment of deep and thick soft soil foundations in offshore waters usually adopts prestressed high-strength concrete pipe pile [7][8][9], cement fly ash gravel pile [10, 11], and plain ...
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Geometric Reliability Analysis of Composite Foundations …
The uncertainties in the power law regression parameters stem from a significant scattering of pressure-settlement curves when a series of static load tests are conducted for the composite foundations composed of cement–fly ash–gravel piles at a particular site.
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Deformation performance of cement-fly ash-gravel pile …
This paper presents a special case study on the performance of geosynthetics-reinforced and pile-supported embankments (GRPS) over silty clay of medium compressibility. A full-scale high-speed railway embankment with four instrumented subsections over medium silty clay was constructed in three stages. Three of the …
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Laboratory investigation of the properties of cement fly ash gravel …
DOI: 10.1016/j.conbuildmat.2020.119493 Corpus ID: 219520694; Laboratory investigation of the properties of cement fly ash gravel for use as a column-supported embankment @article{Yoobanpot2020LaboratoryIO, title={Laboratory investigation of the properties of cement fly ash gravel for use as a column-supported embankment}, author={Naphol …
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Numerical Analysis to Study Lateral Behavior of Cement Fly Ash Gravel
The experiments on the samples comprising the additives of fly ash were made in sand and clay soils. 25% to 75% of cement was replaced with fly ash in cement treated grout samples tested under ...
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Performance of cement fly ash gravel pile supported …
gated the behavior of embankments supported by cement-fly ash-gravel piles using a three-dimensional numerical method. Jenck et al. (2009) also conducted a three-
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(PDF) Performance of Cement-Fly Ash-Gravel Pile
Zheng et al. (2011) [30] investigated two 50 cement-fly ash-gravel pile-supported high-speed railway embankments, the measurements showed 51 that the majority of loads were loaded by the piles ...
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Differential Settlements of Embankment Treated by Cement Fly-Ash Gravel
In recent decades, geotextile reinforcement and tirereinforced methods have been verified to improve the strength of the soil of embankments [14,17]. e deep mixed columns with cement-fly ash ...
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PerformanceofGeosynthetic-ReinforcedandCement-Fly …
measurements for reinforced and unreinforced embank-ments is illustrated in Figures 7(a) and 7(b). First obser-vation is that the evolution pattern of all earth pressures
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Laboratory investigation of the properties of cement fly ash …
This study introduces cement fly ash gravel (CFG) materials, which were developed to be used as porous concrete columns instead of deep cement mixing …
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Real-time monitoring of construction quality for gravel piles …
DOI: 10.1016/j.autcon.2020.103228 Corpus ID: 218969690; Real-time monitoring of construction quality for gravel piles based on Internet of Things @article{Chen2020RealtimeMO, title={Real-time monitoring of construction quality for gravel piles based on Internet of Things}, author={Fengchen Chen and Huanjing Jiao …
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Static Test and Result Analysis on Different Types of Pile …
CFG pile is a representative of the rigid pile, which is made of cement, fly ash, gravel, sand stone chips and belongs to high bond strength pile. It is together with soil between the …
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Behavior and Numerical Evaluation of Cement-Fly Ash …
This study presents a full-scale test of high-speed railway embankments to investigate the performance of cement-fly ash-gravel (CFG) pile-supported …
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Influence of cement-fly ash-gravel pile-supported …
DOI: 10.1016/J.JRMGE.2018.06.001 Corpus ID: 134257539; Influence of cement-fly ash-gravel pile-supported approach embankment on abutment piles in soft ground @article{Xiao2018InfluenceOC, title={Influence of cement-fly ash-gravel pile-supported approach embankment on abutment piles in soft ground}, author={Dengbao Xiao and …
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Laboratory investigation of the properties of cement fly ash gravel …
Four types of binder were adopted: 1. cement, 2. a mix of cement and fly ash, 3. a mix of cement and sisal fibre, and 4. a mix of cement, fly ash and sisal fibre. The content of binder in each ...
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Influence of cement-fly ash-gravel pile-supported …
In this study, four centrifuge model tests were conducted at the Geotechnical Centrifuge Facility of Southwest Jiaotong University, using a 100g t centrifuge system with a maximum acceleration of 200g and an effective radius of 2.7 m. Details on the centrifuge can be found in Xiao et al. (2017).The model container used for the centrifuge model …
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