Novel valley type dry ash storage yard slope anchoring platform structure

Abstract

A novel valley type dry ash storage yard slope anchoring platform structure comprises a soil slope, at least one stage of anchoring platform is arranged on the soil slope, each stage of anchoring platform is provided with an anchoring groove, and each anchoring groove is in a groove shape. An artificial anti-seepage lining layer is laid on the soil slope, and the artificial anti-seepage lining layer goes deep into the anchoring groove along the slope surface of the soil slope and the surface of the anchoring platform; and an anti-pulling anchor rod is arranged in the anchoring groove, and plain concrete is poured in the anchoring groove. Under the condition that the steep slope does not need to be cut in a large area, the storage capacity of the ash storage yard can be increased as much as possible, the ash storage life of the ash storage yard can be prolonged, meanwhile, the structure has the advantages of being easy and convenient to construct, low in manufacturing cost, practical, reliable and the like, and has good popularization value.

Description

Technical Field

[0001] The utility model relates to a novel slope anchoring platform structure for a valley-type dry ash storage yard. Background Art

[0002] As an important place for storing ash residue, gypsum, and pebble coal, the ash storage yard of a thermal power plant is listed as a major pollution source. With the improvement of China's environmental protection and treatment requirements, the anti-seepage treatment standard of the ash storage yard is gradually increasing. In recent years, the construction of new wet ash storage yards has been prohibited, and new ash storage yards all adopt dry ash storage yards. At the same time, according to the latest requirements of the "Pollution Control Standard for General Industrial Solid Waste Storage and Landfill" GB 18599-2020, its anti-seepage standard has been greatly improved, increasing the overall cost of the ash storage yard by about 20-50%.

[0003] Due to the tightening of China's land policy, the land use indicators for industrial projects are becoming stricter. As the ash storage yard covers a large area, its site selection is more difficult. On the one hand, it cannot occupy red-line land such as basic farmland, and on the other hand, it cannot be too far from the power plant to avoid excessive transportation costs. With the recent economic downturn, the previously good comprehensive utilization of fly ash has shown a sharp decline, resulting in power plants paying people to haul fly ash. Therefore, at present, major power plants are actively looking for new ash storage yard sites, and some narrow valley ash storage yards have become the first choice. Although the construction difficulty has increased, the land use approval is quite easy. Therefore, how to store more ash residue within the limited land acquisition red line has become a matter that designers should focus on.

[0004] In view of the current development status of the ash storage yard, the utility model patent has developed a novel slope anchoring platform structure for a valley-type dry ash storage yard. This patent can increase the storage capacity of the ash storage yard as much as possible within the land use red line without large-scale slope cutting of steep slopes. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: mainly aiming at the situation of relatively steep soil slopes, and by pouring plain concrete in the anchoring groove and setting anti-pull anchor bolts, the artificial anti-seepage lining can be stably fixed on the steep slope.

[0006] The technical solution of the utility model is specifically as follows:

[0007] A novel slope anchoring platform structure for a valley-type dry ash storage yard, including a soil slope, at least one level of anchoring platform is arranged on the soil slope, an anchoring groove is arranged on each level of anchoring platform, and the anchoring groove is in a groove shape; an artificial anti-seepage lining is laid on the soil slope, and the artificial anti-seepage lining extends into the anchoring groove along the slope surface of the soil slope and the surface of the anchoring platform; anti-pull anchor bolts are arranged in the anchoring groove, and plain concrete is poured in the anchoring groove.

[0008] The artificial anti-seepage lining is made of HDPE membrane, and the thickness of the HDPE membrane is not less than 1.5 mm.

[0009] The included angle between the anti-pulling anchor rod and the anchoring platform is 45°.

[0010] The rod body of the anti-pulling anchor rod is made of hot-rolled ribbed steel bars.

[0011] The height difference between adjacent levels of the anchoring platform is not greater than 10 m.

[0012] The cross-section of the anchoring trench is a rectangular cross-section with the cross-sectional size of 400 mm × 600 mm; the distance between the anchoring trench and the lower slope is not less than 600 mm, and the distance between the anchoring trench and the upper slope is not less than 600 mm.

[0013] The beneficial effects of the present utility model are as follows: In view of the relatively steep soil slope, by arranging an anchoring platform at the middle position of the slope, arranging a rectangular cross-section anchoring trench on the anchoring platform, extending the artificial anti-seepage lining of the ash storage yard into the anchoring trench along the slope surface and the surface of the anchoring platform, and through pouring plain concrete and setting anti-pulling anchor rods, the artificial anti-seepage lining can be stably fixed on the steep slope. The present utility model can increase the storage capacity of the ash storage yard as much as possible within the land use red line range without large-area slope cutting of the steep slope, which is beneficial to expanding the ash storage life of the ash storage yard. At the same time, it has the advantages of simple construction, low cost, practicality and reliability, and has good popularization value. Description of the Drawings

[0014] Figure 1 It is the overall structure diagram of the present utility model. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0017] AsFigure 1 As shown in the figure, a new type of slope anchoring platform structure for a valley-type dry ash storage yard includes a soil slope 1, on which there are at least one level of anchoring platforms 2, and on each level of anchoring platform 2, there is an anchoring groove 3, and the anchoring groove 3 is in a groove shape. An artificial anti-seepage lining 4 is laid on the soil slope 1, and the artificial anti-seepage lining 4 extends into the anchoring groove 3 along the slope surface of the soil slope 1 and the surface of the anchoring platform 2; anti-pulling anchor rods 6 are arranged in the anchoring groove 3, and plain concrete 5 is poured in the anchoring groove 3. By pouring plain concrete 5 and setting anti-pulling anchor rods 6, the artificial anti-seepage lining 4, the anchoring groove 3 and the soil slope 1 are integrated and can be stably fixed on the steep slope.

[0018] Furthermore, in order to meet the performance requirements of anti-seepage, the ash storage yard anti-seepage needs to adopt an artificial anti-seepage lining 4. The artificial anti-seepage lining 4 uses an HDPE membrane, and the thickness of the HDPE membrane is not less than 1.5 mm. At the same time, the HDPE membrane needs to extend into the anchoring groove along the slope surface of the soil slope 1 and the surface of the anchoring platform.

[0019] Furthermore, in order to ensure the firmness and stability of the anti-seepage structure of the soil slope 1, anti-pulling anchor rods 6 need to be arranged in the anchoring groove 3. The included angle between the anti-pulling anchor rods 6 and the anchoring platform 2 is 45°. The rod body of the anti-pulling anchor rods 6 uses hot-rolled ribbed steel bars, and the diameter and depth need to be determined by calculation according to the geological conditions. The anti-pulling anchor rods 6 need to be well protected against corrosion, and C20 plain concrete is poured after the construction is completed.

[0020] Furthermore, the height difference between adjacent levels of anchoring platforms 2 is not greater than 10 m.

[0021] Furthermore, the current specification requires that the cross-sectional size of the slope anchoring groove is not less than 800 mm × 800 mm (width × height), the distance between the anchoring groove and the lower slope is not less than 800 mm, the distance between the anchoring groove and the upper slope is not less than 1000 mm, and the total width of the anchoring platform is 800 + 800 + 1000 = 2600 mm. The present invention overcomes the prejudice of the prior art. The cross-section of the anchoring groove 3 is a rectangular cross-section, and the cross-sectional size is 400 mm × 600 mm (width × height). The distance between the anchoring groove 3 and the lower slope is not less than 600 mm, the distance between the anchoring groove 3 and the upper slope is not less than 600 mm, and the total width of the anchoring platform is 600 + 400 + 600 = 1600 mm. The platform width is reduced by 1 m, and this width can meet the on-site construction requirements and reduce the construction workload of the anchoring platform.

[0022] The construction principle of the present invention is:

[0023] 1. Combining the geological survey data, clear the surface of the soil slope 1. The original slope 7 is as Figure 1 shown. After cleaning, the soil slope 1 is roughly leveled, and attention should be paid to the stability of the slope during the surface cleaning process.

[0024] 2. Determine the number and elevation of the anchoring platforms 2 according to the slope and height of the soil slope 1.

[0025] 3. Excavate the anchoring platforms 2 with a width of 1.6 m, and simultaneously excavate the anchoring trenches 3.

[0026] 4. Construct the uplift anchor bolts 6. The uplift anchor bolts 6 are drilled at an inclined angle of 45°, and pay attention to reserving the reinforcing bar heads for connecting the artificial anti-seepage lining 4.

[0027] 5. Lay the artificial anti-seepage lining 4. The artificial anti-seepage lining 4 is made of HDPE membrane. Pay attention to reducing the damage of the membrane body at the anchoring trenches 3 to ensure the airtight performance of the membrane. At the same time, make holes in the geomembrane at the locations of the uplift anchor bolts to ensure that the hole sizes are consistent with the reinforcing bar sizes.

[0028] 6. Conduct the airtight work on the geomembrane at the locations of the uplift anchor bolts 6.

[0029] 7. Pour the anchoring trenches 3 with C20 plain concrete. The final product is as Figure 1 shown.

[0030] 8. Conduct the construction of the next-level anchoring platform.

[0031] The present utility model mainly aims at the situation where the soil slope is relatively steep. By arranging the anchoring platforms 2 at the middle position of the slope, arranging the rectangular-section anchoring trenches 3 on the anchoring platforms 2, extending the artificial anti-seepage lining of the ash storage yard along the slope surface and the surface of the anchoring platforms into the anchoring trenches 3, and through pouring plain concrete and setting uplift anchor bolts, the artificial anti-seepage lining 4 is stably fixed on the steep slope. The present utility model can increase the storage capacity of the ash storage yard as much as possible within the land use red line range without large-area slope cutting of the steep slope, which is beneficial to extending the ash storage period of the ash storage yard. At the same time, it has the advantages of simple construction, low cost, practicality and reliability, and has good promotion value.

[0032] The above are only the preferred embodiments of the present utility model. It should be noted that for those skilled in the art, without departing from the overall concept of the present utility model, several changes and improvements can still be made, and these should also be regarded as the protection scope of the present utility model.

Claims

1. A novel slope anchoring platform structure for valley-type dry ash storage yard, characterized in that: It includes an earth slope (1), on which there are at least one level of anchoring platforms (2). An anchoring groove (3) is arranged on each level of the anchoring platform (2), and the anchoring groove (3) is in a groove shape. An artificial anti-seepage lining (4) is laid on the earth slope (1), and the artificial anti-seepage lining (4) extends into the anchoring groove (3) along the slope surface of the earth slope (1) and the surface of the anchoring platform (2). A tension-resistant anchor rod (6) is arranged in the anchoring groove (3), and plain concrete (5) is poured in the anchoring groove (3).

2. The novel slope anchoring platform structure of a valley-type dry ash storage yard according to claim 1, characterized in that: The artificial anti-seepage lining (4) is made of HDPE membrane, and the thickness of the HDPE membrane is not less than 1.5 mm.

3. A novel slope anchoring platform structure for a valley-type dry ash storage yard according to claim 1, characterized in that: The included angle between the tension-resistant anchor rod (6) and the anchoring platform (2) is 45°.

4. A novel slope anchoring platform structure for valley-type dry ash storage yard according to claim 1, characterized in that: The rod body of the tension-resistant anchor rod (6) is made of hot-rolled ribbed steel bars.

5. A novel slope anchoring platform structure for valley-type dry ash storage yard according to claim 1, characterized in that: The height difference between adjacent levels of the anchoring platform (2) is not more than 10 m.

6. A novel slope anchoring platform structure for a valley-type dry ash storage yard according to claim 1, characterized in that: The cross-section of the anchoring groove (3) is a rectangular cross-section, and the cross-sectional size is 400 mm×600 mm; the distance between the anchoring groove (3) and the lower slope is not less than 600 mm, and the distance between the anchoring groove (3) and the upper slope is not less than 600 mm.

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