Refined construction control method for covering existing asphalt pavement
A control method and asphalt pavement technology, applied to pavement details, roads, roads, etc., can solve problems such as difficulty in guaranteeing the adhesion of old roads and covers, too thin asphalt paving layers, and interlayer construction of the original structural layer, etc., to achieve savings The effect of reducing project cost, reducing consumption, and ensuring construction quality
Active Publication Date: 2022-03-25
LUPU BRIDGE MAINTENANCE & MANAGEMENT BRANCH SHANGHAI MUNICIPAL CONSERVATION MANAGEMENT +1
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Problems solved by technology
[0006] In order to solve the problems existing in the prior art such as too thin or too thick asphalt paving layers, difficulty in guaranteeing the cohesion of the old road cover, and construction interlayers in the original structure layer, etc. Disadvantages, the present invention provides a refined construction control method for adding cover to existing asphalt pavement, which is suitable for existing asphalt pavement cover engineering and bridge head settlement control
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[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0044] Such as Figure 2 to Figure 5 Shown, the refinement construction control method of existing asphalt pavement of the present invention adds cover, and its steps are:
[0045] 1. Establish milling and paving guidelines
[0046] For any covered square area, the milling depth should be 1cm or 4cm~6cm or 10cm~12cm at the same time, that is, the disturbance degree to the upper layer shall not be greater than 1cm, and the disturbance degree to the middle surface layer and the lower layer shall not be greater than 2cm; The number of paving layers should be consistent, and the corresponding thickness should be 4cm-6cm or 9cm-14cm or 15cm-24cm; the difference between the elevation of the pavement behind the cover and the design elevation should not exceed ±1cm.
[0047] 2. Existing road elevation measurement
[0048] Encrypted measurement control points...
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The invention relates to a refined construction control method for covering an existing asphalt pavement, which comprises the following steps of: firstly, establishing a set of milling paving criteria, and effectively avoiding the common defects that an asphalt paving layer is too thin or too thick, the cohesiveness of an old road covering is difficult to guarantee, a construction interlayer exists in an original structure layer and the like in the traditional construction process; secondly, on the premise that the criterion is met, an optimal milling paving control algorithm is innovatively given, the use amount of asphalt materials is reduced to the maximum extent, and material waste is avoided; and thirdly, in the construction process, measuring point layout and operation flow arrangement are subjected to refined management and control, and the elevation control precision is improved. Practical application shows that the method can effectively improve the old road covering construction quality, reduce the construction cost, maximally guarantee the use durability of the asphalt pavement and prolong the service life of the asphalt pavement.
Description
technical field [0001] The invention relates to a method for covering an existing asphalt pavement, in particular to a refined construction control method for covering an existing asphalt pavement. Background technique [0002] With the continuous increase of the service life of the expressway, uneven settlement inevitably occurs on the road, which changes its original design line shape, and a new asphalt layer needs to be added to the existing asphalt pavement, so as to meet the design requirements of vertical and horizontal slopes and improve Driving comfort. In addition, with the continuous increase of traffic flow, there is an endless stream of existing expressway reconstruction and expansion projects, and such projects also involve the construction and covering of existing asphalt pavements. [0003] At present, the asphalt pavement surface of expressway adopts three-layer asphalt surface layer, which is divided into upper layer, middle layer and lower layer. The upper...
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Patent Timeline
Login to view more IPC IPC(8): E01C7/18E01C7/35E01C11/02E01C23/12E01C23/01E01C19/18G06F30/13
CPCE01C7/187E01C7/353E01C11/02E01C23/127E01C23/01E01C19/18G06F30/13Y02A30/60
Inventor 茅卫生陶戴邦叶林陈凯华金玉珠张明陈纲
Owner LUPU BRIDGE MAINTENANCE & MANAGEMENT BRANCH SHANGHAI MUNICIPAL CONSERVATION MANAGEMENT
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