Theoretical Analysis Of The Anchor Plate Drawing Mechanism In Loess

Anchor plates are recently becoming one of the most popular foundations which are providing uplift capacity for the feature of convenience and economy, and they are widely used in power transmission towers and ocean floating platforms. The Information shows that construction period of foundation engineering occupies more than half of entire engineering, it’s material transport accounts for 60% of the total project amount and it’s construction costs more than 20% of the total. In complex mountainous terrains, these cases become more prominent.Compared to foreign countries, our power tower designs more reasonable and mature while foundation tends to conservative. The large size of foundation will adversely affect the surrounding environment. Such as cause damage to vegetation or soil erosion. With the increasing consumption of oil, oil exploration has become inevitable to expand to deep sea. And this made foundation form be a challenge to deep-sea oil exploration.Therefore, its significant important to study failure mechanism of anchor plates and analyze affecting of various factors systematically and comprehensively. Through theoretical research, laboratory experiments and numerical simulation, scholars have studied the ultimate uplift capacity of the foundation of anchor plates in sand and explored the work of the foundation of anchor plates in saturated clay. However, previous studies less involved uplift capacity of anchor plates of field tests and rarely seen in loess. Based on current and previous study, this paper use limit equilibrium integral principle to study the theoretical uplift capacity of anchor plates in loess and validated by field trials. Changing embedment ratio to determine the uplift capacity of anchor plates and using FLAC3D software to simulate the pull out process of anchor plates. And eventually, the results of theoretical research, numerical simulation and in-situ tests are compared.