Method for predicting influence of dynamic compaction on soil body and surrounding environment

Abstract

The invention relates to a method for predicting the influence of dynamic compaction on a soil body and the surrounding environment. The method is based on a construction full-process dynamic model considering the displacement history of a pounder in the dynamic compaction process, a non-linear value simulation technology is adopted for predicting the influence of the dynamic compaction construction on the soil body and the surrounding environment, and the method concretely comprises the following steps that (1) a dynamic compaction dynamic model is built; (2) an analysis model is built; (3) a construction full process is simulated; (4) the value calculation is carried out, and the dynamic compaction reinforcing compaction effect and the influence of the dynamic compaction on the surrounding environment are obtained. Compared with the prior art, the method has the advantages that the calculation is simple, the prediction is accurate, and the like.

Description

technical field [0001] The invention relates to the technical field of foundation reinforcement treatment construction, in particular to a method for predicting the impact of dynamic compaction on soil and the surrounding environment. Background technique [0002] The dynamic dynamic compaction method, in which the rammer falls from a high altitude and repeatedly rams the soft soil layer, is widely used at home and abroad in the construction of port engineering, coastal engineering, road surface engineering and other industrial and civil construction facilities. Used in the construction of airport runways. With the wide application of this construction method, it is necessary to study the impact of its construction on the soil and the surrounding environment. [0003] At present, the main means of studying the impact of construction on the surrounding environment are: theoretical analysis, on-site monitoring, empirical formula, numerical simulation, etc. Non-numerical meth...

AI Technical Summary

Problems solved by technology

Dynamic compaction construction is a dynamic process of repeated instantaneous high-energy impacts. Its mechanical properties and spatial conditions are constantly changing during the construction process. It is also necessary to consider the energy of the rammer falling from the air and the process of penetrating the soil. The loss problem, the determination of relevant parameters is also relatively complicated, making it difficult to establish a numerical calculation model that considers the interaction between the rammer and the soil, and the problem is more complicated when it comes to nonlinear contact analysis

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