Water conservancy and hydropower engineering slope construction technology

Abstract

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a water conservancy and hydropower engineering slope construction technology which can be used for construction of a gravel slope. The water conservancy and hydropower engineering side slope construction technology comprises the steps that a side slope ridge is provided with anchor rods in a matrix mode, the slope ridge is covered with a steel bar laying and hanging net fixed through the anchor rods, then concrete pouring is conducted on the pavement of the slope ridge, after pouring is completed, a plurality of drainage holes are formed in the poured slope surface in a matrix mode, the drainage holes are drilled into a broken body horizontally, and the broken body is covered with the slope ridge. Drain pipes radially adaptive to the drain holes are embedded in the drain holes, planting soil is filled in the drain pipes, vine green plants are planted in the drain pipes, root systems of the vine green plants are buried in the planting soil, and vines extend outwards to the poured slope.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a water conservancy and hydropower engineering slope construction process. Background Art

[0002] The slopes of water conservancy and hydropower projects refer to the slopes that are closely related to the construction and operation of water conservancy and hydropower projects, including but not limited to excavation slopes, reservoir slopes, and river (or water conservancy canal) slopes.

[0003] The slopes of water conservancy and hydropower projects are complex to construct due to the changeable geographical environment. When constructing gravel slopes, we must not only consider the possible impact of groundwater activity on slope stability, but also consider the fixation and protection of gravel to prevent it from scattering later, and also take into account the ecological restoration after construction.

[0004] In view of this, this construction process solution is specially developed. Summary of the invention

[0005] The purpose of the invention is to propose a water conservancy and hydropower engineering slope construction process, which solves the problem of handling gravel slope construction in water conservancy and hydropower engineering slope construction.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A slope construction process for a water conservancy and hydropower project comprises a slope sill, anchor rods are arranged in a matrix on the slope sill, the sill is covered with a steel bar hanging mesh fixed by the anchor rods, and then the paving surface of the sill is poured with concrete. After the pouring is completed, a plurality of drainage holes are arranged in the matrix of the poured slope surface, the drainage holes are drilled horizontally into the broken body, drainage pipes adapted to the diameter of the drainage holes are embedded in the drainage holes, the drainage pipes are filled with planting soil, and vines are planted in the drainage pipes, so that the roots of the vines are buried in the planting soil, and the vines extend outward to the poured slope surface.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the drainage holes are arranged in such a way that the spacing between adjacent drainage holes in the height direction is 1-2.5 meters, the spacing in the width direction is 1.5-3 meters, and the distance between the drainage holes and the edge of the slope is not more than 2 meters.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the spacing between adjacent drainage holes in the height direction is 2 meters, and the spacing in the width direction is 2 meters.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the diameter of the drainage hole is 11 cm, the outside of the drainage pipe is only 10 cm, the drainage pipe is embedded in the drainage hole to a depth of 2-4 meters, and extends to 5 cm outside the slope.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the drainage pipe is made of PVC material.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the filling depth in the planting soil drainage pipe is 35-50 cm from the end exposed at one end of the slope surface.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme: drainage ditches are arranged on the roadbed surface of the slope, the top ground of the slope and the toe surface between two adjacent slope surfaces.

[0014] In order to solve the problem of handling gravel slope construction in water conservancy and hydropower engineering slope construction, the present invention has the following advantages:

[0015] The water conservancy and hydropower engineering slope construction process of the present invention can be used for the construction of gravel slopes.

[0016] First, the slope surface is solidified and protected by pouring concrete over the entire surface of the slope to prevent the slope surface gravel from loosening and scattering. At the same time, the concrete poured on the slope surface is reinforced with a steel bar laying mesh layer. In order to further maintain the stability of the entire slope surface, professional anchor rods are used to fix the steel bar laying mesh on the slope surface during the construction process.

[0017] Secondly, drainage pipe construction can be used to eliminate the effects of groundwater activity, rainy season infiltration water, etc. on slope stability.

[0018] Among them, vines can be selectively planted in the drainage pipes. The vines can grow and cover the slopes, and the infiltration water from the drainage holes can provide growth water and root nutrients for the vines. This approach can not only increase the green coverage rate of the slopes, but also effectively prevent foreign sediment from adhering to and polluting the slopes, prevent soil erosion, and improve the ecological environment.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the slope of the present invention;

[0021] Figure 2 It is a schematic diagram of a drainage pipe of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-2The invention discloses a water conservancy and hydropower engineering slope construction process, which can be used for the construction of gravel slopes.

[0024] In the disclosed embodiment, the slope construction process of the water conservancy and hydropower project includes a slope sill, and anchor rods are arranged in a matrix on the slope sill, wherein the anchor rods preferably have a diameter of φ22, and the density and depth are selected according to the construction design requirements, and need to be fixed by grouting of anchor holes. The sill is covered with a steel bar paving mesh fixed by anchor rods, wherein the steel bar paving mesh is made of φ8 wire rod steel bars. During the laying of the steel bar paving mesh, it is necessary to install transverse φ16 reinforcing steel bars at different height positions on the upper side of the steel bar paving mesh along the height direction of the slope surface 5 to pressurize the steel bar paving mesh, and the reinforcing steel bars are welded and fixed to the anchor rods. Then, the paving surface of the sill is poured with concrete, and C20 fine stone concrete is sprayed during the pouring process, and the pouring thickness is not less than 5cm. After pouring is completed, a number of drainage holes 1 are arranged in a matrix on the poured slope 5. The drainage holes 1 are drilled horizontally into the broken body. Drainage pipes 2 that are adapted to the diameter of the drainage holes 1 are embedded in the drainage holes 1. The drainage pipes 2 are filled with planting soil 3, and vines 4 are planted in the drainage pipes 2 so that the roots of the vines are buried in the planting soil 3, and the vines extend outward to the poured slope 5.

[0025] First, the whole range of the slope surface 5 is poured with concrete to solidify and protect the gravel on the slope to prevent the gravel on the slope surface 5 from loosening and scattering. At the same time, the concrete poured on the slope surface 5 is reinforced with a steel bar laying mesh layer. In order to further maintain the stability of the entire slope surface 5, professional anchor rods are used to fix the steel bar laying mesh on the slope surface 5 during the construction process.

[0026] Secondly, the construction of drainage pipe 2 can eliminate the influence of groundwater activity, rainy season seepage water, etc. on slope stability.

[0027] Among them, vines 4 can be selectively planted in the drainage pipe 2, and the vines 4 grow and cover the slope, and the infiltration water discharged from the drainage hole 1 can provide growth water and root nutrition for the vines 4. This method can not only increase the green coverage rate of the slope, but also effectively prevent foreign sediment from adhering to and polluting the slope surface 5, prevent soil erosion, and improve the ecological environment.

[0028] It should be noted that the green plants are designed to not only provide ecological green cover and restoration, but also effectively prevent external silt and other objects that hinder the function of water conservancy and hydropower projects from entering the functional area. For example, the slope is applied to the side of the water conservancy ditch 10, and the vine-type green plants 4 can prevent the silt and soil generated by the rainy season from entering the water conservancy ditch 10 in large quantities, affecting the function of the water conservancy ditch 10.

[0029] In order to ensure the functional effect, the arrangement of the drainage holes 1 is such that the spacing between adjacent drainage holes 1 in the height direction is 1-2.5 meters, the spacing in the width direction is 1.5-3 meters, and the distance between the drainage holes 1 and the edge of the slope is no more than 2 meters. Preferably, the spacing between adjacent drainage holes 1 in the height direction is 2 meters, and the spacing in the width direction is 2 meters.

[0030] Among them, considering the convenience of construction and functionality, the diameter of the drainage hole 1 is 11 cm, and the outside of the drainage pipe 2 is only 10 cm. The drainage pipe 2 is embedded in the drainage hole 1 to a depth of 2-4 meters, preferably 3 meters, and extends to 5 cm outside the slope 5. The drainage pipe 2 is made of PVC material, which is relatively low in cost; of course, other pipes can also be selected. The purpose of the drainage pipe 2 extending out of the slope 5 is to prevent the later gravel and slag from entering the drainage pipe 2. The gravel and slag will affect the water permeability of the drainage pipe 2 after solidification in the drainage pipe 2.

[0031] Among them, the filling depth in the drainage pipe 2 of the planting soil 3 is 35-50 cm from the end exposed on one end of the slope 5, which can meet the growth needs of the vine-type green plants 4 in the initial stage of cultivation. In the later stage, this place is mainly used for infiltrated water to provide moisture and nutrition. After the production is mature, the main part of the vine is attached to and covers the slope 5.

[0032] Among them, the roadbed surface 6 of the slope, the top ground 7 of the slope and the toe surface 8 between the two adjacent slope surfaces 5 are all provided with drainage ditches 9. Firstly, a large amount of water flow in the rainy season is released through the drainage ditches 9. Secondly, the drainage ditches 9 are easy to clean and maintain in the later stage, which can play a buffering role in preventing sand, gravel, soil and other intrusions into the functional area of ​​the water conservancy and hydropower project from the top of the slope.

[0033] In summary, the slope construction technology of the water conservancy and hydropower project of the present invention can take into account the changeable geographical environment of the slope of the water conservancy and hydropower project. Especially for the construction of the gravel slope, it not only takes into account the possible impact of groundwater activity on the slope stability, but also needs to consider the fixation and protection of the gravel to prevent the gravel from scattering in the later stage, and needs to take into account comprehensive conditions such as ecological restoration after construction.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water conservancy and hydropower engineering slope construction process, including a slope ridge, characterized in that: Anchor rods are set in a matrix on the slope, and the slope is covered with a steel bar mesh fixed by the anchor rods. Then the paving of the slope is poured with concrete. After the pouring is completed, a number of drainage holes are arranged in the slope matrix after pouring. The drainage holes are drilled horizontally into the broken body. Drainage pipes adapted to the diameter of the drainage holes are embedded in the drainage holes. The drainage pipes are filled with planting soil, and vines are planted in the drainage pipes so that the roots of the vines are buried in the planting soil and the vines extend outward to the slope after pouring.

2. The water conservancy and hydropower engineering slope construction process according to claim 1 is characterized in that: The drainage holes are arranged in such a way that the spacing between adjacent drainage holes is 1-2.5 meters in height and 1.5-3 meters in width, and the distance between the drainage holes and the edge of the slope is no more than 2 meters.

3. The water conservancy and hydropower engineering slope construction process according to claim 2 is characterized in that: The distance between adjacent drainage holes is 2 meters in height and 2 meters in width.

4. The water conservancy and hydropower engineering slope construction process according to claim 1 is characterized in that: The diameter of the drainage hole is 11cm, and the outside of the drainage pipe is only 10cm. The drainage pipe is embedded in the drainage hole at a depth of 2-4 meters and extends 5cm outside the slope.

5. The water conservancy and hydropower engineering slope construction process according to claim 1 is characterized in that: The drainage pipe is made of PVC.

6. The water conservancy and hydropower engineering slope construction process according to claim 1 is characterized in that: The filling depth in the planting soil drainage pipe is 35-50cm from the end exposed on the slope.

7. The water conservancy and hydropower engineering slope construction process according to claim 1 is characterized in that: Drainage ditches are set on the roadbed surface of the slope, the top ground of the slope and the toe surface between two adjacent slope surfaces.

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