Estimating the Driven Pile Capacities for COF Project in West Kazakhstan

Zhussupbekov, Askar; Chang, Der-Wen; Utepov, Yelbek; Borgekova, K.; Omarov, Abdulla

doi:10.1007/s11204-019-09579-6

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…Soil testing by static loads on piles is carried out in the following order [8][9][10][11][12][13]: the rest of the pile is maintained after the installation of the bored pile; testing of soils with bored piles begins not earlier than the pile concrete reaches 80% of the design strength; the pile is loaded with a static vertically indenting, stepwise increasing load, in steps; loading is performed by Three 500-ton hydraulic jacks model DG500G250; instrument reports are taken in the following sequence: the first report is taken immediately after the load is applied, then four readings every 15 minutes, two readings with an interval of 30 minutes and then after 60 minutes until conditional stabilization, that is, when the difference in displacements ΔS is not more than 0.1 mm for the last 1.00 hour of observation: the vertical load is brought to a value that causes the pile to move by at least 40mm or to the maximum load provided for by this program; unloading of the tested piles is carried out in steps equal to double the loading steps; readouts on strain gauges are taken immediately after each stage of unloading and observed after 15 minutes. After complete unloading (to zero), the elastic displacements are monitored for 1 hour with readings taken every 15 minutes.…”

Section: Methodologies Of the Pile Field Test (Slt) By Gostmentioning

confidence: 99%

Features of Testing Piles for High-Rise Buildings in Difficult Soil Conditions in Astana

Mussakhanova

2023

GEOMATE

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The project consists of a high-rise building supported on boring and driven piles. An assessment was made of the current practice in the foundation design of high-rise buildings in Astana, Kazakhstan, to explore areas for improvement. Pile testing is usually undertaken to provide relevant information on one or more of the following issues: the ultimate load capacity of a single pile, the loadsettlement behavior of a pile, the acceptability of the performance of a pile, and the structural integrity of a pile. A three-stage process of foundation design and verification will be described, and the importance of proper ground characterization and assessment of geotechnical parameters will be emphasized. According to the test results, the bearing capacity of driven and bored piles was determined, and a comparative analysis was carried out according to the results of tests for cone penetration (CPT). The analysis of the obtained results showed that the dynamic DLT method (according to GOST) compared with static SLT (according to GOST) and cone-penetrating tests (CPT, according to GOST) showed a low bearing capacity of about 30-40 percent. According to comparative analyzes, the static testing method of piles was determined to differ from the CPT by about 15 percent. These investigations are important for the understanding of soil-structure interaction, especially of boring and driven piles in construction site Astana.

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Section: Methodologies Of the Pile Field Test (Slt) By Gostmentioning

confidence: 99%

Features of Testing Piles for High-Rise Buildings in Difficult Soil Conditions in Astana

Mussakhanova

2023

GEOMATE

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“…Pile foundations are one of the most popular types of foundations at construction sites in Kazakhstan, the expediency of their use is due to the need to ensure a high load-bearing capacity of high-rise buildings and structures. In connection with the emergence of new technologies and equipment for the installation of pile foundations, designers need to improve the current regulatory documents, which, unfortunately, do not contain recommendations for the design of piles made using modern technologies [3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Interaction of the Bored Micro Pile by DDS (Fdp) Technology With the Soil Ground

Issakulov¹

2023

GEOMATE

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The article presents the results of a comparative analysis of the bearing capacity of bored piles with a drilling displacement system (DDS), obtained by tests for static load and according to GOST standards, as well as the results of tests for compression of the surrounding soil after installing the pile with DDS. These DDS piles are created by rotary drilling with a simultaneous full displacement of the soil in a horizontal direction. The optimal design of DDS piles can be obtained in soils that allow for a horizontal displacement, which causes an increase in the shaft's resistance. It is shown that drilling and ramming technologies of pile foundation construction play an important role in modern urban planning, but they are not fully universal. Actively developing, they replace traditional methods using dynamic and vibratory impacts, as they are more gentle to nearby buildings, which is most relevant for cities with dense urban development. According to the project design, the field tests of DDS bored piles with a diameter of 410 mm, and length of 6 m was performed by two static loading tests. The static loading tests were performed by GOST 5686-2012. This paper shows the results of the load-settlement and feed rate of the deep auger for pile diagrams 1 and 2 from those field tests that make it possible to determine the bearing capacity of piles on a given soil. The analysis signified that the bearing capacity of the six-meter-high bored piles meets the design requirements.

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Investigation of Interaction of Piles at New Cargo Sea Transportation Route and LRT Projects with Problematic Soils of Kazakhstan

Zhussupbekov

Kaliakin

Chang

et al. 2021

Lecture Notes in Civil Engineering

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Estimating the Driven Pile Capacities for COF Project in West Kazakhstan

Cited by 7 publications

References 2 publications

Features of Testing Piles for High-Rise Buildings in Difficult Soil Conditions in Astana

Features of Testing Piles for High-Rise Buildings in Difficult Soil Conditions in Astana

Investigation of the Interaction of the Bored Micro Pile by DDS (Fdp) Technology With the Soil Ground

Investigation of Interaction of Piles at New Cargo Sea Transportation Route and LRT Projects with Problematic Soils of Kazakhstan

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