Reinforcing treatment method of soft foundation of newly-built highway engineering

Abstract

The invention discloses a reinforcing treatment method of a soft foundation of newly-built highway engineering. The method comprises the following steps of step 1, performing positioning on the foundation to be treated, burying a row of prestressed pipe piles at intervals of 40-80cm, arranging another row of prestressed pipe piles at intervals of 50-100cm in front of the buried prestressed pipe piles, and sequentially and repeatedly burying prestressed pipe piles, so that front pipe piles and rear pipe piles are interlaced; step 2, preparing a soil binder diluent, uniformly injecting the prepared soil binder diluent in the foundation of different depth through a spraying device, so that surrounding soil binds together, and besides, performing tamping and flattening to obtain a flat foundation; step 3, paving a graded broken stone cushion on the flat foundation, and paving a sand cushion at the ends of the prestressed pipe piles; and step 4, paving a reinforcing net rack at the ends ofthe prestressed pipe piles, and pouring concrete to complete reinforcing treatment of the soft foundation. Through the adoption of the reinforcing treatment method disclosed by the invention, sinkingof the foundation can be effectively avoided, and the flatness and the completeness of a road are guaranteed.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a treatment method for strengthening weak foundations of newly-built highway projects. Background technique [0002] With the rapid development of the economy, the rapid growth of traffic volume, the increasing demand for load capacity, the growth of large trucks and traffic volume have caused great challenges to today's highways, especially the current traffic demand, in order to ensure people's travel convenience , the construction of many roads is inevitably built on weak foundations. In order to ensure the service life of roads and the safety of driving vehicles, it is particularly important to reinforce weak foundations during the construction of roads. Nowadays, for the reinforcement of weak foundations, The soil replacement method, the drainage consolidation method and the deep mixing method are mainly used, but the soil replacement method has a large workload, w...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the economy, the rapid growth of traffic volume, the increasing demand for load capacity, the growth of large trucks and traffic volume have caused great challenges to today's highways, especially the current traffic demand, in order to ensure people's travel convenience , the construction of many roads is inevitably built on weak foundations. In order to ensure the service life of roads and the safety of driving vehicles, it is particularly important to reinforce weak foundations during the construction of roads. Nowadays, for the reinforcement of weak foundations, The soil replacement method, the drainage consolidation method and the deep mixing method are mainly used, but the soil replacement method has a large workload, while the drainage consolidation method has a poor reinforcement effect, and deep mixing requires a large power. more difficult

In order to ensure that the road bears a certain weight and pressure without sinking and cracking, the treatment of weak foundations remains to be studied

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