Treatment method of cavity beneath road slab of airfield pavement

A panel and void removal technology, which is applied in the field of void treatment at the bottom of the airport aisle panel, can solve problems such as long time required, low flexibility, and incomplete void disposal, and achieve the effect of saving maintenance costs and improving construction efficiency
CN107165035AInactive Publication Date: 2017-09-15郑州陆得新基础工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
郑州陆得新基础工程有限公司
Publication Date
2017-09-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of treatment and maintenance of cavities beneath road slabs of an airfield pavement, and especially relates to a treatment method of a cavity beneath a road slab of an airfield pavement. Traditional treatment methods of cavities beneath road slabs of an airfield pavement adopt a cement mud-jacking or slab treating technology, and has the disadvantages of long time and low flexibility. The treatment method of the cavity beneath the road slab of an airfield pavement comprises the following steps: evaluating the load transfer ability of the cavity beneath the road slab of the airfield pavement and a seam based on the detection of the airfield pavement by a heavy falling weight deflectometer, injecting a two-component polymer material to the position of the cavity beneath the road slab of the airfield pavement according to above obtained detection result, and allowing the two-component material to expand in the cavity beneath the road slab of the airfield pavement and cure in a short time in order to fill the cavity and improve the load transfer ability of the seam. The method has the characteristics of fastness in treatment, no maintenance and high flexibility; and compared with traditional methods, the method has the characteristics of fastness, durability, economic property, environmental protection and high flexibility. The method has wide development prospect in the field of the treatment and the maintenance of the cavity.
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Description

technical field

[0001] The invention belongs to the technical field of emptying treatment and maintenance at the bottom of an airport roadway panel, in particular to a method for treating emptying at the bottom of an airport roadway panel. Background technique

[0002] Due to the unreasonable selection of the base material of the airport concrete pavement, the untimely filling of the joints and cracks, the defects of the concrete pavement itself and the drainage system of the pavement, the insufficient compactness of the base, temperature changes and other natural environmental influences, the impact load of the aircraft landing Under the repeated action of the airport concrete pavement, it is easy to produce plastic deformation, which leads to the emptying of the bottom of the concrete slab. The concrete road slab is prone to fracture and damage under the action of heavy load, which poses a huge threat to the take-off and landing of the aircraft. Therefore, the research on ...

Claims

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