Construction process for pile slab type non-soil roadbed highway

Abstract

The invention relates to a construction process for a pile slab type non-soil roadbed highway. In the process, a rotary drilling rig is used for rotary drilling to form holes, after the holes are formed, cement mortar is poured into the pile holes, then prefabricated tubular piles are vertically hoisted and then are implanted into the pile holes, a vibratory hammer is started to hammer so that the tubular piles are effectively in contact with the bottoms of the pile holes, then natural curing is carried out after perpendicularity and plane positions of the tubular piles are corrected, pile heads are treated, prefabricated beam slabs are erected and assembled, assembling joints and expansion joints of the prefabricated beam slabs are treated, a waterproof layer is constructed, in the period, guard bars are mounted, asphalt concrete is paved, and then construction is finished. The construction process has the outstanding advantages that a roadbed does not require to be heightened by soil, a large use amount of earthwork is reduced, and meanwhile, permanent occupation of a highway roadbed is reduced. The process conforms to development tendency of industrial construction, standard design, industrial production and specialized construction can be realized, moreover, a construction period is greatly shortened, engineering quality is improved, construction cost is reduced, and working hours can be shortened by about 20%.

Description

technical field [0001] The invention relates to a road engineering construction technology, in particular to a pile plate type soilless subgrade road construction technology. Background technique [0002] At present, road construction adopts the construction technology of filling and rolling subgrades. The bottlenecks and restrictive factors such as land and resources are relatively prominent. The filling requirements and quality of the compacted roadbed are higher. In addition to the permanent occupation of the existing land, the high-fill roadbed also requires a large amount of borrowed soil, which causes a great waste of resources. Secondly, a large number of expressway reconstruction and expansion have created greater traffic pressure on the already very busy traffic conditions, and have a certain impact on the surrounding environment and the lives of nearby people. Thirdly, the filling and rolling subgrade construction technology needs to invest a large amount of const...

AI Technical Summary

Problems solved by technology

[0002] At present, road construction adopts the construction technology of filling and rolling subgrades. The bottlenecks and restrictive factors such as land and resources are relatively prominent. The requirements and quality of filling soil for compacted roadbeds are higher. In addition to the permanent occupation of existing land, high-fill roadbeds also require a large amount of borrowed soil, which causes a great waste of resources.

Secondly, a large number of reconstruction and expansion of expressways have created greater traffic pressure on the already very busy traffic conditions, and have a certain impact on the surrounding environment and the lives of nearby people.

Thirdly, the filling and rolling subgrade construction technology needs to invest a large amount of construction machinery and equipment within a limited time during the construction process, resulting in a small site; the construction period is long, the cost is too high, and large-scale construction on site has a great impact on the environment and safety. Civilized construction is difficult to guarantee

It is not conducive to the needs of large-scale factory prefabrication production and assembly-type professional construction development

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