A cement blanket slope for temporary drainage channel at an airport
By adopting the cement carpet slope protection construction form in the airport temporary drainage channel construction, combined with the construction process of gabion boxes, backfill soil, geomembrane and cement carpet, the problems of long construction cycle and poor economic benefits of the spray anchor support process are solved, and the construction period is shortened and economic benefits are improved.
Patent Information
- Application Number
- CN202421414427.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-19
AI Technical Summary
During the construction of temporary drainage channels at existing airports, the construction period of the spray anchor support process is long, the economic benefits are poor, and 14 days of maintenance time is required.
The construction process of cement carpet slope protection is adopted, and the construction process of setting up gabion boxes, backfill soil, laying geomembranes and cement carpets at the slope foot is shortened and economic benefits are improved.
It effectively shortens the construction period and significantly improves economic benefits. It also fixes geomembrane and cement blankets through multi-layer staggered cauldrons and U-shaped nails, improving construction stability and safety.
Smart Images
Figure CN222745244U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of road engineering, and in particular to a cement blanket slope of a temporary drainage channel of an airport. Background Art
[0002] The drainage ditch is a supporting building structure for the airport road. Before the formal drainage ditch construction, a temporary drainage channel needs to be excavated to reinforce the slope. At present, the mainstream practice of the airport construction sector is the slope spray anchor support technology, which is carried out according to the construction procedures of anchor rod construction, mesh production and installation, and shotcrete. Generally, 14 days of maintenance is required after the construction is completed.
[0003] The construction of shotcrete support requires the preparation of equipment and materials such as shotcrete machines, steel meshes, anchors, concrete, etc. in advance, and a large number of manpower is required for construction. The construction period is long and the economic benefits are poor. Utility Model Content
[0004] In order to shorten the construction period and improve the economic benefits at the same time, the present application provides a cement blanket slope for a temporary drainage channel of an airport.
[0005] The present application provides a temporary drainage channel cement blanket slope at an airport, which adopts the following technical solution:
[0006] A cement blanket slope for a temporary drainage channel at an airport comprises a gabion box arranged at the foot of the slope, backfill soil is filled and compacted between the gabion box and the slope surface, and a geomembrane and a cement blanket are sequentially laid on the slope surface.
[0007] By adopting the above technical solution, the staff only need to dig a temporary ditch on site, and then carry out the construction of gabions, backfill soil, geomembrane and cement blanket in sequence. The main slope protection construction form adopts cement blanket, which not only effectively shortens the construction period, but also significantly improves the economic benefits.
[0008] Optionally, the gabion boxes are vertically arranged in multiple layers, and the upper and lower adjacent layers of gabion boxes are staggered and stacked.
[0009] By adopting the above technical solution, the gabion boxes are stacked in multiple layers in an offset manner, thereby improving the stability of the placement of the gabion boxes.
[0010] Optionally, two adjacent geomembranes are overlapped with each other and fixed at the overlapped joint by U-shaped nails.
[0011] By adopting the above technical solution, the U-shaped nails are easy to use and the geomembrane is firmly fixed.
[0012] Optionally, a receiving groove is provided on the slope surface corresponding to the overlapping position of two adjacent cement blankets, and the overlapping position of the two cement blankets is located in the receiving groove.
[0013] By adopting the technical solution, the surface of the cement blanket can be made smooth.
[0014] Optionally, a guardrail is provided at the top of the slope along the direction of water flow.
[0015] By adopting the above technical solution, the safety of the construction site is improved.
[0016] Optionally, a ramp for going up and down the slope is provided on the slope surface.
[0017] By adopting the above technical solution, it is convenient for workers to carry out construction work.
[0018] Optionally, sealant is applied to the overlapping parts of two adjacent cement blankets.
[0019] By adopting the above technical solution, two adjacent cement blankets can be effectively fixed and the sealing performance can be improved.
[0020] Optionally, the cement blanket is provided with U-shaped nails at the slope foot.
[0021] By adopting the above technical solution, the stability of the cement blanket is improved.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The staff only needs to dig a temporary ditch on site, and then carry out the construction of gabion boxes, backfill soil, geomembrane and cement blanket. The main slope protection construction form adopts cement blanket, which not only effectively shortens the construction period, but also significantly improves the economic benefits;
[0024] 2. The multiple layers of gabion boxes are staggered and stacked, which improves the stability of the gabion box placement. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the structure of the slope of an embodiment of the present application.
[0026] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.
[0027] Explanation of the accompanying reference numerals: 1. Gabion box; 2. Backfill soil; 3. Geomembrane; 4. Cement blanket; 5. Guardrail. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1 This application is described in further detail.
[0029] The present application embodiment discloses a cement blanket slope for a temporary drainage channel at an airport. Figure 1A cement blanket slope for a temporary drainage channel at an airport includes a gabion box 1, backfill soil 2, a geomembrane 3, a cement blanket 4 and a guardrail 5.
[0030] Reference Figure 1 and Figure 2 The gabion box 1 is placed at the foot of the slope along the direction of the water flow. The mesh box of the gabion box 1 is made of wire mesh sheets, and the size of the mesh box is 1m*1m. The mesh box contains stones. The stones need to be stable when installed, with the large surface facing down. They should be shaken or knocked appropriately to make them stable. The exposed stone surface should be leveled by manual or mechanical masonry, and the stones should be overlapped with each other. The gabion box 1 is vertically arranged in three layers. The gabion box 1 on the upper layer is staggered and stacked with the gabion box 1 on the lower layer by 20-30cm. The upper mesh box and the lower mesh box are connected and tied according to the design requirements.
[0031] Reference Figure 1 and Figure 2 The backfill soil 2 is constructed synchronously with the gabion box 1. Each time a layer of gabion box 1 is constructed, a layer of backfill soil 2 is filled and compacted between the gabion box 1 and the slope surface to ensure the stability of the gabion box 1. The geomembrane 3 is laid on the slope surface along the direction of water flow. When two adjacent geomembranes 3 are overlapped, the upper geomembrane 3 is pressed on the lower geomembrane 3 according to the direction of water flow. The overlap length is not less than 20cm and fixed with U-shaped nails. The U-shaped nails are made of 6mm diameter round steel bars and the length of a single leg is 10cm. The geomembrane 3 is fixed with sandbags on the top of the slope.
[0032] Reference Figure 1 and Figure 2 According to the direction of water flow, the cement blanket 4 is laid on the upper surface of the geomembrane 3. A receiving groove with a width of 10 cm and a depth equivalent to the thickness of the cement blanket 4 is provided at the overlap of two adjacent cement blankets 4 on the slope. The overlap length of two adjacent cement blankets 4 is 10 cm, and the overlap is located in the receiving groove. Sealant needs to be evenly applied at the overlap. The cement blanket 4 is fixed at the foot of the slope with U-shaped nails at intervals of 2m.
[0033] When the cement blanket 4 is laid, it needs to be watered. 9kg of water is needed per square meter (calculated based on 10mm thickness). Watering should be done thoroughly, and water should be sprinkled evenly from the edge to the middle. The flow rate is 4000ml / min, until the color of the cement blanket 4 becomes darker. If the average day and night temperature is higher than 30℃, the surface of the cement blanket 4 should be covered with plastic film or geotextile and other materials to keep it moist. The watering and curing time shall not be less than 3 days.
[0034] Reference Figure 1The guardrail 5 is installed at the top of the slope along the direction of water flow and 1.5m away from the slope edge. The guardrail 5 is assembled with steel pipes of φ48.3 and 3.0mm wall thickness. The steel pipes are painted red and white, and the intersections are fastened with iron fasteners. One is set every 3m, with a buried depth of 0.3m and a height of 1.2m above the ground. There are three horizontal bars above and below, with the upper bar 1.2m away from the reference plane, the middle bar 0.7m away from the reference plane, and the lower bar 0.2m away from the reference plane. A dense mesh safety net is hung, and the safety net should be closed from top to bottom. In order to facilitate engineering construction and safe escape, a special ramp for people going up and down is set at every 140m at the initial excavation position of the foundation pit, which also serves as a safe escape passage.
[0035] The implementation principle of the cement blanket slope of a temporary drainage channel at an airport in the embodiment of the present application is as follows: the staff only needs to dig a temporary ditch on site, and then carry out the construction of the guardrail 5, the special ramp, the gabion box 1, the backfill soil 2, the geomembrane 3 and the cement blanket 4 in sequence. The main body adopts the slope protection construction form of the cement blanket 4, which not only effectively shortens the construction period, but also significantly improves the economic benefits.
[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A cement blanket slope for a temporary drainage channel at an airport, characterized in that: It comprises a gabion box (1) arranged at the foot of a slope, backfill soil (2) is filled and compacted between the gabion box (1) and the slope surface, and a geomembrane (3) and a cement blanket (4) are sequentially laid on the slope surface.
2. The cement blanket slope of the temporary drainage channel of the airport according to claim 1 is characterized by: The gabion boxes (1) are vertically arranged in multiple layers, and the upper and lower adjacent layers of gabion boxes (1) are stacked in a staggered manner.
3. The cement blanket slope of the temporary drainage channel of the airport according to claim 1 is characterized by: Two adjacent geomembranes (3) are overlapped with each other and fixed at the overlapped positions by U-shaped nails.
4. The cement blanket slope of the temporary drainage channel of the airport according to claim 1 is characterized by: A receiving groove is provided on the slope surface corresponding to the overlapping portion of two adjacent cement blankets (4), and the overlapping portions of the two cement blankets (4) are located in the receiving groove.
5. The cement blanket slope of the temporary drainage channel of the airport according to claim 1 is characterized by: A guardrail (5) is arranged on the top of the slope along the water flow direction.
6. The cement blanket slope of the temporary drainage channel of the airport according to claim 1 is characterized by: The slope surface is provided with a ramp for ascending and descending the slope.
7. The cement blanket slope of the temporary drainage channel at an airport according to claim 1, characterized in that: The overlapping parts of two adjacent cement blankets (4) are coated with sealant.
8. The cement blanket slope of the temporary drainage channel of the airport according to claim 1, characterized in that: The cement blanket (4) is provided with U-shaped nails at the slope foot.