• Proceedings of the Korean Geotechical Society Conference
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• 1993.04a
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• pp.91-115
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• 1993

최근 환경문제에 대한 사회적 관심이 고조됨에 따라 말뚝항타로 인한 지반진동, 소음 등이 각종 건설현장에서 심각한 문제점으로 대두되고 있다. 지반을 굴착하고 cement paste를 주입한후 기성말뚝을 삽입하는 SIP공법은 이러한 건설환경 여건의 변화에 부응하여 그 적용이 급속히 증대되고 있다. 그러나 국내에서 SIP공법으로 시공딘 말뚝의 재하시험 결과는 각종 문헌에서 제시학 있는 지지력 산정공식들과는 상이한 특성을 나타내 주고있다. 또한 말뚝의 품질관리를 위한 시험결과는 상당한 지지력 미달현상이 발생학 있는 것으로 나타나고 있어 본 공법에 대한 지지력 특성이 규명되어야 할 필요가 있다. 본 논문에서는 국내에서 시공된 사례들을 중심으로 SIP공법의 지지력 특성을 분석하여 보았다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.7
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• pp.3287-3295
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• 2011

Currently in construction Soil-cement Injected Precast pile of buried pile method are in wide use. But deterioration in pile quality and faulty construction can be often found these days because of problems arise in the construction field. For this study, survey was carried out by targeting construction engineers working in the field in order to identify the types and the causes of problems arise based on SIP(Soil-cement Injected Precast) method. By analyzing the causes of problems arise, countermeasures could be presented. The data and the analysis presented in the study could be effectively used for minimizing problems arise in future during SIP method construction.

• Journal of the Korean GEO-environmental Society
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• v.3 no.2
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• pp.15-21
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• 2002

Because of the environmental problem during the pile driving, the use of low noise-vibration auger-drilled pilling is increasing to solve noise and vibration problem in pilling. In Korea, SIP (Soil-Cement Injected Precast Pile) method is mainly used as auger-drilled pilling. But, a proper bearing capacity evaluation formula has not been suggested, yet. To improve and supplement this situation, direct shear tests between SIP pile skin interface and soil were executed under various conditions. Through the analysis of test results, skin resistance characteristics of SIP were investigated thoroughly. Also, the maximum unit skin resistance capacity evaluation formulae on SM, SC soil was suggested.

• Journal of the Korean GEO-environmental Society
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• v.4 no.1
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• pp.59-66
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• 2003

The environmental problem due to the pile driving, the use of low noise-vibration auger-drilled pilling is increasing to solve noise and vibration problem in pilling. Therefore, in Korea, SIP (Soil-Cement Injected Precast Pile) method is mainly used as auger-drilled pilling. However, a proper bearing capacity evaluation formula has not been suggested, yet. In order to improve and supplement this situation, direct shear tests between SIP pile skin interface and soil were executed under various conditions. Through the analysis of test results, skin resistance characteristics of SIP were investigated thoroughly. Also, the nonlinear unit skin resistance capacity model and relative parameters evaluation formula with SM, SC soil were suggested.

• Journal of the Korean GEO-environmental Society
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• v.5 no.3
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• pp.5-15
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• 2004

SIP has been widely used as a low noise and vibration piling method in Korea. But the quality control of SIP was not properly settled down and field workers did not fully understand the principle of SIP method. So not a less troubles were raised at construction site and bearing capacity was not fully mobilized. To settle these problems, Korea National Housing Corporation amended the construction and load test criteria of SIP in 2002. After load tests on the SIPs installed in field according to the new criteria, we found that the bearing capacity in field vs the design load ratio increased and bearing characteristics was enhanced than that installed by the former criteria. To consider the enhanced bearing characteristics in the pile design and determine the adequate design criteria, this paper analyzed the accuracy of design criterion which were commonly used in Korea comparing with the load test results. Analysis result shows that Meyerhof criteria(1976) properly simulates the bearing capacity of SIP installed by the new construction and load test criteria.

• Proceedings of the Korean Geotechical Society Conference
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• 1996.10a
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• pp.295-302
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• 1996

• Journal of the Korean Geotechnical Society
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• v.19 no.2
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• pp.247-254
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• 2003

While the interests in the environmental problem during the construction are increasing, the use of low noise-vibration auger-drilled pilling is increasing to solve noise and vibration problem in pilling. Therefore, in Korea, SIP (Soil-Cement Injected Precast Pile) method is mainly used as auger-drilled pilling. However, there is no proper design criteria compatible with the ground condition of Korea, so which is most wanted. To improve and supplement this situation, direct shear tests for the friction between SIP pile skin interface and soil were executed on various conditions. Through the analysis of test results, skin friction characteristics of SIP were investigated thoroughly Also, hyperbolic model parameter fomulas which describe the friction behavior and the new non-linear unit skin friction capacity model with SM, SC soil were suggested.

• Journal of the Korean Geotechnical Society
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• v.19 no.1
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• pp.51-60
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• 2003

As piling works in urban area are increasing, SIP which has low noise & vibration piling method takes the place of driven pile which has good bearing charateristics and is economical. Although SIP has been used far more than 15 years and it's use is increasing year by year, accurate analysis of bearing mechanism of SIP is not enough. So the design of SIP is much more conservative than driven pile. This paper is aimed at analysing the bearing charateristics of 103 SIPs constructed in Korea to give rational design criteria. Research result shows that bearing capacity of SIP is 40% lower than that of driven pile and conservative Meyerhof(20$\bar{N}_b'A_b$) method produced closer result to load test results than any other design method. And this result shows that in order to use optimised design criteria for the economical SIP design, quality control criteria must be settled down to produce high bearing capacity.

• Proceedings of the Korean Geotechical Society Conference
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• 2002.06a
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• pp.57-76
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• 2002

As piling works in urban area increasing, SIP which is low noise & vibration piling method is taking place of driven pile which has good bearing charateristics and economics. Since SIP has been used for more than 15 years and it's application is increasing year by year, however, accurate analysis of bearing mechanism of SIP is not enough. So the design of SIP is much more conservative than driven pile. This paper is aimed to analyse the bearing charateristics of 103 SIPs constructed in Korea to give rational design criteria. Research result shows that bearing capacity of SIP is 40% lower than that of driven pile and conservative Meyerhof(equation omitted) method produced closer result to load test results than other design method. And this result show that to use optimised design criteria for the economic SIP design, quality control criteria must be settled down to produce high in-situ bearing capacity.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.21 no.4
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• pp.299-306
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• 2011

This study investigated the SIP-method as a low-vibration, low-noise engineering method. The ground vibrations caused by the SIP-method were measured and analyzed in each step. From the analysis results, quantitative ground vibration values and reliable vibration estimation equations were proposed. Furthermore, the ground vibrations caused by the SIP-method were compared with the ground vibrations caused by other methods presented by existing studies. Based on the vibration estimation equation with 50 % reliability, the ground vibration values by the SIP-method at the distance of 10~150 m corresponded to 17~57 % of the ground vibration values by the equation proposed by Attewell & Famer, and 14~96 % of the ground vibration values by the equation proposed by Prof. Park in his study using a diesel drop hammer. These results showed that the ground vibration reduction effect of the SIP-method was higher those of other general engineering methods. Finally, the permissible scope of work using the SIP-method which meets the domestic vibration standards was presented.