Study on Microstructure and Silting Characteristics of Soft Soil: A Case Study of Nansha District, Guangzhou

With the development of society and economy, land subsidence in soft soil areas has become a prominent geological disaster our country’s coastal area. Land characteristics irreversibility, wide influence range, long aging, etc., these are closely related to soil, such as physical mechanical parameters, microstructure characteristics, etc. The Nansha District Guangzhou was taken study area this paper. Through collection preliminary data, two-dimensional scanning electron microscopy, three-dimensional Computed Tomography (CT), micro-structure expounded its plugging further analyzed. results show that area’s honeycomb, granular, flocculent structure. From perspective pore scale distribution, number macropores ultramicro pores is small, continuity poor. In most small medium pores, namely aggregate granular pores. siltation can be treated according effect on consolidation settlement soil. research paper provide targeted prevention control suggestions for area, also reference other similar research.