Capillary water drainage device suitable for cement improved loess roadbed

By using a combination structure of substrate layer, geotextile layer, and drainage board layer in cement-modified loess roadbed, the problem of low structural strength was solved, high-strength capillary water drainage was achieved, roadbed collapse was prevented, and service life was extended.

CN223548368UActive Publication Date: 2025-11-14SHANXI ROAD & BRIDGE CONSTR GROUP
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Patent Information

Application Number
CN202423146484.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-14
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing capillary drainage devices have low structural strength and short service life in cement-modified loess roadbeds, which can easily lead to roadbed collapse.

Method used

The structure adopts a combination of substrate layer, geotextile layer, drainage board layer, filter cloth, armor layer, drainage channel and reinforcing ribs. The substrate layer is a mixture of crushed stone and concrete, the drainage board layer is made of PVC high-density polymer material, the armor layer is made of high-hardness alloy, the drainage channel is Ω-shaped, and reinforcing ribs are set to improve the structural strength.

Benefits of technology

It improves the structural strength of the roadbed, extends its service life, and effectively removes excess water through siphon force and capillary action, preventing the roadbed from deforming and collapsing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of road construction, and particularly relates to a capillary water drainage device suitable for a cement improved loess roadbed, which comprises a roadbed component, a base plate layer and a geotechnical cloth layer arranged at the top of the base plate layer, the drainage assembly comprises a drainage plate layer arranged at the top of the geotechnical cloth layer, filter cloth arranged at the bottom of the drainage plate layer, an armor layer arranged at the top of the drainage plate layer, a drainage channel arranged in the drainage plate layer and reinforcing ribs arranged in the drainage plate layer; the structure is reasonable, the structural strength is high in the using process, the service life is long, and roadbed collapse can be prevented.
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Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically a capillary water discharge device suitable for cement-modified loess roadbeds. Background Technology

[0002] The roadbed refers to the strip-shaped structure built according to the route location and certain technical requirements as the foundation of the pavement. It is the foundation of railways and highways. The roadbed is a linear structure built with soil or stone. Since the construction of a good roadbed is related to factors such as geographical climate environment, in the process of roadbed construction, in addition to ensuring its good drainage system, the capillary water state will have a certain impact on the roadbed.

[0003] Existing capillary water drainage devices have some shortcomings in use, such as low structural strength, resulting in a short service life. Based on the above problems, we propose a capillary water drainage device suitable for cement-modified loess roadbeds. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the prior art, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a capillary water drainage device suitable for cement-modified loess roadbeds. During use, it has high structural strength, long service life, and can prevent roadbed collapse.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A capillary water discharge device suitable for cement-modified loess roadbeds, comprising:

[0009] The roadbed component includes a base plate layer and a geotextile layer disposed on top of the base plate layer;

[0010] The drainage assembly includes a drainage board layer disposed on top of the geotextile layer, a filter cloth disposed at the bottom of the drainage board layer, an armor layer disposed on top of the drainage board layer, drainage channels disposed inside the drainage board layer, and reinforcing ribs disposed inside the drainage board layer.

[0011] As a preferred embodiment of the capillary water discharge device for cement-modified loess roadbed described in this utility model, the substrate layer is a mixture of crushed stone and concrete.

[0012] As a preferred embodiment of the capillary water drainage device applicable to cement-modified loess roadbed described in this utility model, the surface of the geotextile layer is provided with permeable holes.

[0013] As a preferred embodiment of the capillary water drainage device for cement-modified loess roadbeds described in this utility model, the drainage channel has an Ω-shaped cross-section.

[0014] As a preferred embodiment of the capillary water drainage device for cement-modified loess roadbeds described in this utility model, the armor layer is made of a high-hardness alloy.

[0015] As a preferred embodiment of the capillary water drainage device applicable to cement-modified loess roadbeds described in this utility model, the reinforcing ribs are arranged vertically.

[0016] As a preferred embodiment of the capillary water drainage device applicable to cement-modified loess roadbed described in this utility model, the drainage board layer is made of PVC high-density polymer material.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Under the physical action of capillary force and siphon force, the drainage board layer draws excess water in the roadbed into the drainage channel and discharges it, which can prevent the roadbed from deforming and collapsing.

[0019] 2. In addition, by providing an armor layer on top of the drainage board layer and reinforcing ribs in the inner cavity of the drainage board layer, the structural strength can be improved, which helps to extend the service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, I will now describe it in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the drainage layer structure of this utility model;

[0023] Figure 3This is a cross-sectional view of the drainage channel of this utility model.

[0024] In the diagram: 100 roadbed component, 110 base plate layer, 120 geotextile layer, 200 drainage component, 210 drainage board layer, 220 filter cloth, 230 armor layer, 240 drainage channel, 250 reinforcing rib. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] This utility model provides the following technical solution: a capillary water drainage device suitable for cement-modified loess roadbed, which has high structural strength and long service life during use and can prevent roadbed collapse.

[0030] Figures 1 to 3 The diagram shown is a structural schematic of an embodiment of a capillary water drainage device for cement-modified loess roadbeds according to the present invention. Its main body includes a roadbed component 100 and a drainage component 200.

[0031] The roadbed component 100 includes a base plate layer 110 and a geotextile layer 120 mounted on top of the base plate layer 110. The base plate layer 110 is a mixture of crushed stone and concrete. The surface of the geotextile layer 120 is provided with permeable holes. Furthermore, the base plate layer 110 is used to support the geotextile layer 120, and the geotextile layer 120 is used to connect the filter cloth 220.

[0032] The drainage assembly 200 includes a drainage board layer 210 installed on top of the geotextile layer 120, a filter cloth 220 installed at the bottom of the drainage board layer 210, an armor layer 230 installed on top of the drainage board layer 210, a drainage channel 240 formed inside the drainage board layer 210, and a reinforcing rib 250 installed inside the drainage board layer 210. The drainage channel 240 has an Ω-shaped cross-section. The armor layer 230 is made of high-hardness alloy. The reinforcing rib 250 is vertically arranged. The drainage board layer 210 is made of PVC high-density polymer material. Furthermore, the drainage board layer 210 is used to absorb drainage, the filter cloth 220 is used for filtration to prevent clogging, the armor layer 230 is used to improve protective performance, the drainage channel 240 is used for drainage, and the reinforcing rib 250 is used to improve structural strength.

[0033] Combination Figures 1-3 This embodiment provides a capillary water drainage device suitable for cement-modified loess roadbeds. The specific principle is as follows: Under the physical action of capillary force and siphon force, the drainage board layer 210 draws excess water in the roadbed into the drainage channel 240 for discharge, which can prevent the roadbed from deforming and collapsing. In addition, by providing an armor layer 230 on the top of the drainage board layer 210 and reinforcing ribs 250 in the inner cavity of the drainage board layer 210, the structural strength can be improved, which helps to extend the service life.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A capillary water drainage device suitable for cement-modified loess roadbeds, characterized in that, include: The roadbed assembly (100) includes a substrate layer (110) and a geotextile layer (120) disposed on top of the substrate layer (110); The drainage assembly (200) includes a drainage board layer (210) disposed on top of the geotextile layer (120), a filter cloth (220) disposed at the bottom of the drainage board layer (210), an armor layer (230) disposed on top of the drainage board layer (210), a drainage channel (240) disposed inside the drainage board layer (210), and a reinforcing rib (250) disposed inside the drainage board layer (210).

2. The capillary water discharge device for cement-modified loess roadbeds according to claim 1, characterized in that: The substrate layer (110) is a mixture of crushed stone and concrete.

3. The capillary water discharge device for cement-modified loess roadbeds according to claim 1, characterized in that: The surface of the geotextile layer (120) is provided with permeable holes.

4. A capillary water discharge device suitable for cement-modified loess roadbeds according to claim 1, characterized in that: The drainage channel (240) has an Ω-shaped cross-section.

5. A capillary water discharge device suitable for cement-modified loess roadbeds according to claim 1, characterized in that: The armor layer (230) is made of a high-hardness alloy.

6. A capillary water discharge device suitable for cement-modified loess roadbeds according to claim 1, characterized in that: The reinforcing rib (250) is arranged vertically.

7. A capillary water drainage device suitable for cement-modified loess roadbeds according to claim 1, characterized in that: The drainage board layer (210) is made of PVC high-density polymer material.