Liquefaction Mitigation of a Submerged Silty Sand Site in Seismic Zone IV of India by Dynamic Compaction and Soil Replacement

被引:0
作者
Kapoor, Anurag [1 ]
机构
[1] Arun Soil Lab Pvt Ltd, Lucknow, Uttar Pradesh, India
来源
PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON TRANSPORTATION GEOTECHNICS, VOL 4, ICTG 2024 | 2025年 / 405卷
关键词
Liquefaction; Dynamic compaction; Soil replacement;
D O I
10.1007/978-981-97-8225-3_7
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Soil Liquefaction has been a major cause of damage to many Civil Engineering Structures like multi-storey buildings, storage tanks, bridges, etc. in seismically active areas during many past earthquakes. Therefore, it is essentially required to do Liquefaction Potential Analysis based on a detailed Geotechnical Investigation of a Site located in a seismically active zone and further suggest viable Liquefaction Mitigation Techniques for the Project concerned which may be a combination of more than one method using geotechnical fundamentals to produce an adequate solution for the concerned Site. A case study is being discussed and presented here wherein a combination of two most economical and easy to implement liquefaction mitigation techniques were recommended to be adopted at the proposed Seismic Zone IV site of India with a view that we could save our valuable available natural Mother Earth resources for our future generations with environmental sustainability as the prime focus. A combination of Dynamic Compaction and Soil Replacement at the top resulted in improved densification as well as converting a few liquefiable soil layers present to non-liquefiable ones, still leaving a few un-improved liquefiable layers at little shallow depths just below the ground level which made us to decide for geotechnical recommendations for the proposed Structure in favour of conventional footings with a rider to structurally stiffen the Structure to accommodate post-earthquake settlements, thus, avoiding deep pile foundation which would not have been cost-effective and could have used many available natural resources in the form of different Building Materials.
引用
收藏
页码:59 / 65
页数:7
相关论文
共 3 条
[1]  
[Anonymous], 2018, IRC SP 114
[2]  
Relevant Indian Standard, Relevant Indian Standard code IS1893 (Part 1): 2016 used in liquefaction analysis
[3]  
Seed H.B., 1971, J. Soil Mech. and Found. Div., V97, P1249, DOI DOI 10.1061/JSFEAQ.0001662