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Roadbed anti-settlement structure containing light material
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A light-weight material and anti-settling technology, which is applied to roads, roads, climate change adaptation, etc., can solve problems such as road service cycle and driving safety impact, uneven settlement, and road surface deformation
Active Publication Date: 2021-09-10
中交二公局萌兴工程有限公司
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[0003] The settlement of highway subgrade will bring great adverse effects. First, the intact subgrade will be damaged, and then the pavement structure will be damaged under the action of external force. Cracks, when filling the area, do not have enough tensile strength to cause cracks, which in turn cause problems such as road surface deformation, potholes, and arching. It can be seen that once the road subgrade settles, it will cause a series of adverse effects, which will affect the service life of the road and driving. serious impact on safety
[0004] Subgrade settlement is inevitable in the embankment engineering of high-grade highways on soft soil foundations, especially after the road has been used for a period of time. Therefore, effective prevention of road settlement problems on soft soil foundations is to ensure that the entire highway The key to the quality, and the traditional anti-settlement treatment of soft soil subgrade has poor effect and increases the disturbance to the soft soil foundation, so it is necessary to develop a new subgrade anti-settlement structure
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Embodiment 1
[0031] The present invention provides a subgrade anti-settlement structure comprising lightweight materials, which sequentially includes a soft soil layer 1, a waterproof layer 2, a foam concrete layer 3 and a poured pavement layer 4 from bottom to top, and is characterized in that the waterproof layer 2 An anti-settling layer 5 is also provided between the foamed concrete layer 3, and the anti-settling layer 5 includes:
[0032] Profiled steel plate 6, two layers are set up and down;
[0033] There are multiple settlement compensation mechanisms 7, which are evenly distributed between the upper and lower layers of profiled steel plates 6. Each settlement compensation mechanism 7 includes a first support body 71, a second support body 72, and a third support body arranged sequentially from top to bottom. Support body 73, first spring 74 and L-shaped pressure bar 75, the lower end of described first support body 71 and the top end of second support body 72 are provided with the...
Embodiment 2
[0037] On the basis of Embodiment 1, in order to further improve the compensation for settlement, a cavity 731 is provided in the third support body 73, and an insertion section 721 is provided at the bottom of the second support body 72, and the insertion section 721 can be inserted In the cavity 731 , the cavity 731 is also communicated with a plurality of filler inlets 732 , and the filler inlets are used to allow the filler between the upper and lower laminated steel plates 6 to enter the cavity 731 .
[0038] In this embodiment, when the second support body 72 is raised, the insertion section 721 at the bottom thereof will move up, creating a gap with the cavity 731, and the light filler will enter the cavity 731 and the insertion section 721 through the filler inlet. In the gap between them, the insertion section 721 is supported and its high stability is ensured.
Embodiment 3
[0040] On the basis of Embodiment 2, since part of the filler enters the cavity 731, the lightweight filler 8 between the upper and lower laminated profiled steel plates 6 is reduced, which affects the reinforcement and support of the profiled steel plate 6 and the settlement compensation mechanism 7. Therefore, this implementation An example also includes an EPS board body 16, the bottom of the EPS board body 16 matches the shape of the upper surface of the upper laminated steel plate 6, and the EPS board body 16 is provided with a plurality of filling holes, and the filling holes are filled with For EPS particles, the upper laminated steel plate 6 is provided with a plurality of through holes for EPS particles to enter between the upper and lower laminated steel plates 6 .
[0041] In this embodiment, the EPS plate body 16 is a lightweight material, and a plurality of filling holes are arranged on it, and the EPS particles are filled in the filling holes, and the upper lamina...
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Abstract
The invention discloses a roadbed anti-settlement structure containing a light material, and belongs to the technical field of road anti-settlement structures. At least two layers of profiled steel sheets of the roadbed anti-settling layer are arranged up and down; the lower end of a first supporting body of the settlement compensation mechanism is in sliding connection with two diagonal planes of the top end of a second supporting body, right-angle teeth matched with each other are further arranged on slopes on the two sides of a sliding connecting piece in the slope direction of the slopes, a first spring is arranged between the second supporting body and a third supporting body, and the vertex angle of an L-shaped pressing rod is hinged to the top of the third supporting body. The outermost end of one edge of the L-shaped pressing rod is located at the bottom of the second supporting body, and the outermost end of the other edge of the L-shaped pressing rod is connected with the lowest end of the inclined face of the first supporting body. And the light filler is filled between the upper and lower layers of profiled steel sheets. The weight of the filled embankment is reduced, so that the settlement amount of the embankment is reduced, and meanwhile, the settlement compensation mechanism is used for compensating settlement caused by overweight bearing of the road surface, so the service life of the road is prolonged.
Description
technical field [0001] The invention relates to the technical field of anti-subsidence structures for roads, in particular to an anti-subsidence structure for roadbeds containing lightweight materials. Background technique [0002] The subgrade settlement has a direct impact on the operation of the highway, and the analysis and treatment of the subgrade settlement problem has a direct impact on the progress, project quality and safety of the highway construction. Today, with the continuous and vigorous development of my country's transportation industry, road construction has continuously improved the stability of roadbeds, and the problem of roadbed settlement is the main factor related to the stability of road construction. Therefore, it is necessary to properly solve the problem of roadbed settlement in road construction. , to ensure the normal progress of road construction and operation. [0003] The settlement of highway subgrade will bring great adverse effects. First,...
Claims
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Application Information
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