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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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The Cement Fly Ash and Gravel (CFG) Pile and Encased Stone Column (ESC) are the ground improvement techniques. The main object of the study is to the numerical analysis of the Both techniques pile group were used to support the Embankment with and without the geotextile both techniques composite foundation by the Finite …
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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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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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Geometric Reliability Analysis of Composite Foundations Comprising Cement–Fly Ash–Gravel Piles at Site-Specific Scale ... Reliability Analysis of X-ray Computed Tomography Inspection Based on ...
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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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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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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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Cement Fly ash Gravel (CFG Pile) also know as CFG Pile is composed of gravel, stones chips, sand, fly ash cement mixed with water using a variety of pile machinery made of variable strength of pile. CFG Pile …
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This paper analyzes the causes of larger differences of final settlement calculated value of cement fly-ash gravel pile (CFG pile) composite foundation of Baotou with actual observed result of it. On the basis of analysis on a number of practical engineering data of Baotou, we modify the settlement formula of the CFG pile composite foundation and …
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Engineering Properties of Cement Fly Ash Gravel Mixtures for Application as Column-Supported Highway and Railway Embankments. Materials 2022, 15, 3972.https ... Although the concrete pile has a much higher strength than the granular pile and soil-cement column, the concrete. Materials 2022, 15, 3972 3 of 17 pile is also more …
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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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Therefore, the use of cement fly ash gravel (CFG) instead of DCM columns has been introduced. The objective of this paper is to present an experimental investigation of the properties of CFG. Gravels with sizes of 4.76 to 12.70 mm were mixed with ordinary Portland cement (OPC) Type 1 and fly ash (FA) to create CFG materials.
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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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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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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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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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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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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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The consolidation test results showed that: (1) Compared with coastal cement soil, the deformation of coastal cement soil modified with a 20% fly ash content was reduced from 4.31 to 2.70 mm, and ...
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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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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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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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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 …
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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 …
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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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The current study introduces cement fly ash gravel (CFG) mixtures created by mixing cement, fly ash, and gravel as a column to support embankments built on soft …
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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 …
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CFG pile (i.e Pile made up of Cement-Fly Ash-Gravel material) supported embankment construction over compressible foundation soils is a challenging task for engineers due to the undesirable properties of soft clayey soil, such as settlement, excess pore pressure and low bearing capacity.
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