River filling road construction method

Abstract

The invention discloses a construction method for a road formed by filling a river, and solves the problem that the foundation of the road formed by filling the river is a soft soil foundation. The key point of the technical solution is that the construction method for the road formed by filling the river comprises the following steps: S100, clearing the bottom surface of the river to an original-state soil layer, and clearing debris; S200, paving a mountain skin mud layer to a subgrade surface of the road formed by filling the river; S300, digging a foundation pit; S400, installing cement mixing piles; S500, laying a first bubble mixed light soil layer; S600, laying a graded gravel layer; S700, laying a second bubble mixed light soil layer; S800, laying a stable layer; and S900, laying anasphalt concrete layer. By applying the construction method, the problem that the foundation of the road formed by filling the river is the soft soil foundation can be overcome, and the service lifeof the road formed by filling the river is effectively prolonged.

Description

technical field [0001] The invention relates to a municipal construction construction method, in particular to a river filling road construction method. Background technique [0002] With the development of cities, the coverage of urban roads to cities is gradually increasing, and road construction is an indispensable part of urban construction. However, when urban roads need to cross the river, there are generally two solutions: if the width of the river pond is large, build bridges on the river pond to connect the roads on both sides of the river pond; if the width of the river pond is small, use filling Pinghetang paved road. For the second solution, the water content of the foundation at the bottom of the pond is relatively high, resulting in relatively soft soil, and the foundation at the bottom of the pond is a soft soil foundation. If the river filling road is constructed according to the conventional construction method, there will be hidden dangers of road breakag...

AI Technical Summary

Problems solved by technology

Among them, the excavation and replacement method and the riprap method are generally applied to soft soil foundations with a small thickness; the cushion layer method is generally used for shallow treatment of soft soil foundations, but cannot be applied to bearing layers with a shrinkage modulus < 2.5MPa soft soil foundation; the cycle of drainage consolidation method is generally too long, and the construction method is relatively cumbersome

[0004] But above-mentioned method is all unsuitable for the river filling road, the thickness of the soft soil foundation of filling river road is thicker, and the shrinkage modulus of bearing layer of soft soil foundation is less, therefore needs to develop a kind of construction that is applicable to river filling road method

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