Assembly type large-void-ratio precast block protection slope suitable for water level change area

Abstract

The utility model provides an assembly type large-void-ratio precast block protection slope suitable for a water level change area, and relates to the technical field of protection slopes. According to the revetment, the prefabricated soil building blocks are adopted to replace traditional backfill plain soil, the size can be accurately controlled, and the assembling tightness degree of the revetment and the large-void-ratio prefabricated blocks is improved; the soil building block has the characteristics of being easy to form, light in weight, good in air permeability, moisture retention and drainage performance, not prone to weathering, capable of being soaked in water and free of loss and environmentally friendly, so that the soil building block matched with the prefabricated block with the large hole ratio can meet the requirement of a water level change area for anti-scouring capacity, and the limitation of the application range of the prefabricated block with the large hole ratio is broken through; only a non-water-level fluctuation area can be expanded to be used on a whole slope surface, so that the requirements of safety, ecological landscape greening and the like can be better met; and the construction mode can be correspondingly improved, the slope protection can be rapidly laid and formed, the construction period is effectively shortened, and the protection effect can be rapidly achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to an assembled large-pore-rate prefabricated block slope protection suitable for water level fluctuation areas. Background Art

[0002] The water-facing slope of the embankment is subject to water erosion and erosion all year round, which is prone to soil erosion and slope instability, so a slope protection structure is required. Taking plain concrete precast block slope protection as an example, it can be divided into three types according to the structural type: solid, small hole rate, and large hole rate, among which the hole rate is limited to 30%. The types of large hole rate precast block products mainly include hexagonal hollow type, porous brick type, large triangle type, dovetail type, I-shaped type, etc.

[0003] The construction method of prefabricated blocks with holes is as follows: after the foundation soil of the embankment facing the water is leveled and compacted, a crushed stone cushion is laid and leveled, and then prefabricated blocks are laid and spliced ​​to form. Finally, the holes are backfilled with plain soil, and turf slope protection is laid on the surface of the plain soil or grass seeds are spread to form turf slope protection.

[0004] The water level change area below the water level often uses solid or small-pore prefabricated blocks with strong scour resistance to protect the slope. After the slope is assembled, grass cannot grow on the surface or the grass growth is limited. When the water level is low, the appearance is white, and there are certain soil and water erosion problems, which have a great impact on the ecological balance and landscape of the river.

[0005] The use of prefabricated blocks with a large porosity rate in water level fluctuation areas can effectively improve the landscape, but its anti-scouring ability is weak. After the slope protection is assembled, it is necessary to use artificial compaction to backfill the holes with plain soil, which is often difficult to meet the compaction requirements, resulting in loose soil. In addition, the grass slope protection on its surface grows slowly and it is difficult to fully cover the holes in a short period of time, which will cause the backfill soil to be washed away, resulting in serious soil and water loss problems. For example, the soil and water loss rate of hexagonal hollow prefabricated blocks can reach more than 90%. Long-term development will continue to hollow out the soil under the gravel cushion layer, causing problems such as partial collapse of the slope protection.

[0006] Slope protection construction belongs to water conservancy projects. Construction usually starts at the end of the year during the dry season and is completed before the spring irrigation or flood season of the following year. Conventional construction methods have a relatively tight construction schedule. Prefabricated blocks with large porosity are difficult to quickly play a protective role after splicing, which affects the safety of the embankment's water-facing slope. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the utility model provides an assembled large-pore prefabricated block slope protection suitable for water level change areas, which solves the problem that the large-pore prefabricated block slope protection has weak anti-scouring ability and is difficult to quickly play a protective role.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] An assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas, the slope protection comprising: large-porosity prefabricated blocks, soil blocks and anchors;

[0010] A stepped hole is provided in the middle of the large porosity prefabricated block, wherein the large hole of the stepped hole faces downward and the small hole faces upward;

[0011] The shape and size of the soil block match the stepped hole, and a through hole is opened in the middle of the soil block;

[0012] The head end of the anchor bolt passes through the gravel cushion layer and is inserted into the flood-facing slope foundation soil of the embankment, and the tail end of the anchor bolt is exposed;

[0013] The soil-building block is sleeved on the end of the anchor bolt through the through hole; the large-pore-rate prefabricated block is sleeved on the soil-building block through the stepped hole.

[0014] Preferably, the soil blocks are soil blocks pre-planted with grass.

[0015] Preferably, the large porosity prefabricated block is a hexagonal hollow prefabricated block.

[0016] Preferably, the outer side length L of the large porosity prefabricated block is 300 mm, and the thickness H is 120 mm.

[0017] Preferably, the stepped holes include: small holes and large holes;

[0018] Both the small and large holes are hexagonal holes;

[0019] The shortest distance d from the small hole wall to the outer wall of the prefabricated block with large porosity is 80 mm;

[0020] The shortest distance D from the large hole wall to the outer wall of the large porosity prefabricated block is 50 mm.

[0021] Preferably, the thickness of the small hole and the large hole is 60 mm.

[0022] Preferably, the through hole has a diameter of 10 mm.

[0023] Preferably, the anchor has a diameter of 6 mm and a length of 500 mm; the exposed end of the anchor is within a range of 95 mm to 105 mm.

[0024] The utility model provides a prefabricated large-pore-ratio prefabricated block slope protection suitable for water level fluctuation areas. Compared with the prior art, it has the following beneficial effects:

[0025] In the utility model, the slope protection adopts prefabricated earth blocks to replace traditional backfill soil, which can accurately control the size and improve the assembly tightness with the large-pore ratio prefabricated blocks; and the earth blocks have the characteristics of easy molding, lightweight, good air permeability, good moisture retention, good drainage, not easy to weather, can be soaked in water without loss, and environmental protection. The earth blocks are matched with the large-pore ratio prefabricated blocks to meet the requirements of the anti-scouring ability of the water level change area, breaking through the application range limitation of the large-pore ratio prefabricated blocks, from only being able to be used in non-water level change areas to the entire slope surface. The use of prefabricated blocks can better meet the requirements of safety, ecological landscape and greening, etc. The construction method can also be improved accordingly. After the foundation soil of the embankment facing the water is leveled and compacted and the gravel cushion layer is leveled, on-site layout and positioning are carried out according to the size of the prefabricated blocks with large porosity, and anchor nails are inserted in the center of each prefabricated block with large porosity. The earth-building blocks are mounted on the anchor nails through the through holes, and the prefabricated blocks with large porosity are mounted on the earth-building blocks. The adjacent prefabricated blocks with large porosity are tightly spliced, and the slope protection can be quickly laid and formed, which effectively shortens the construction period and can quickly play a protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A top view of the slope protection in the embodiment of the utility model;

[0028] Figure 2 for Figure 1 AA local slope map;

[0029] The reference numerals in the figure are set as: prefabricated block with large porosity 10, soil block 20, through hole 21, anchor 30, crushed stone cushion layer 31, and embankment water-facing slope foundation soil 32. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The embodiment of the present application solves the problem that the large-porosity prefabricated block slope protection has weak anti-scouring ability and is difficult to quickly play a protective role by providing an assembled large-porosity prefabricated block slope protection suitable for water level change areas.

[0032] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Example:

[0034] like Figure 1 , Figure 2 As shown, the utility model provides an assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas, the slope protection comprising: a large-porosity prefabricated block 10, a soil block 20 and an anchor 30;

[0035] A stepped hole is provided in the middle of the large porosity prefabricated block 10, wherein the large hole of the stepped hole faces downward and the small hole faces upward;

[0036] The shape and size of the soil block 20 match the stepped hole, and a through hole 21 is opened in the middle of the soil block 20;

[0037] The head end of the anchor 30 passes through the gravel cushion layer 31 and is inserted into the flood-facing slope foundation soil 32 of the embankment, and the tail end of the anchor 30 is exposed;

[0038] The soil block 20 is sleeved on the end of the anchor 30 through the through hole 21; the large porosity prefabricated block 10 is sleeved on the soil block 20 through the stepped hole.

[0039] The slope protection adopts prefabricated soil blocks 20 to replace traditional backfill soil, which can accurately control the size and improve the assembly tightness with the large-porosity prefabricated blocks 10; and the soil blocks 20 have the characteristics of easy molding, lightweight, good air permeability, good moisture retention, good drainage, not easy to weather, can be soaked in water without loss, and environmentally friendly. The soil blocks 20 are matched with the large-porosity prefabricated blocks 10 to meet the requirements of the anti-scouring ability of the water level change area, breaking through the application range limitation of the large-porosity prefabricated blocks 10, from only being used in non-water level change areas to the whole slope surface, and can better It meets the requirements of safety, ecological landscape and greening, etc. The construction method can also be improved accordingly. After the base soil 32 of the embankment facing the water is leveled and compacted and the crushed stone cushion layer 31 is leveled, on-site layout and positioning are carried out according to the size of the prefabricated blocks 10 with a large porosity, and an anchor 30 is inserted at the center of each prefabricated block 10 with a large porosity. The soil block 20 is sleeved on the anchor 30 through the through hole 21, and the prefabricated block 10 with a large porosity is sleeved on the soil block 20. The adjacent prefabricated blocks 10 with a large porosity are tightly spliced, and the slope protection can be quickly laid and formed, which effectively shortens the construction period and can quickly play a protective role.

[0040] The soil blocks 20 are pre-planted with grass for continuous maintenance, and the slope protection immediately has the functions of preventing soil loss and landscape after being laid and formed, further accelerating the slope protection to play a protective role.

[0041] like Figure 1 As shown, the large porosity prefabricated block 10 is a hexagonal hollow prefabricated block.

[0042] like Figure 1 , Figure 2 As shown, the outer side length L of the large porosity prefabricated block 10 is 300 mm, and the thickness H is 120 mm.

[0043] like Figure 1 , Figure 2 As shown, the stepped hole includes: a small hole and a large hole;

[0044] Both the small and large holes are hexagonal holes;

[0045] The shortest distance d from the small hole wall to the outer wall of the large porosity prefabricated block 10 is 80 mm;

[0046] The shortest distance D from the large hole wall to the outer wall of the large porosity prefabricated block 10 is 50 mm.

[0047] like Figure 2 As shown, the thickness of the small hole and the large hole are both 60 mm.

[0048] like Figure 1 , Figure 2 As shown, the diameter of the through hole 21 is 10 mm.

[0049] like Figure 1 , Figure 2 As shown, the anchor 30 has a diameter of 6 mm and a length of 500 mm; the exposed end of the anchor 30 is within a range of 95 mm to 105 mm.

[0050] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0051] In the embodiment of the utility model, the slope protection adopts prefabricated soil blocks 20 to replace the traditional backfill soil, which can accurately control the size and improve the assembly tightness with the large-porosity prefabricated blocks 10; and the soil blocks 20 have the characteristics of easy molding, lightweight, good air permeability, good moisture retention, good drainage, not easy to weather, can be soaked in water without loss, and environmental protection. The soil blocks 20 are matched with the large-porosity prefabricated blocks 10 to meet the requirements of the anti-scouring ability of the water level change area, breaking through the application range limitation of the large-porosity prefabricated blocks 10, from only being used in non-water level change areas to the entire slope surface. It can better meet the requirements of safety, ecological landscape and greening, etc.; the construction method can also be improved accordingly. After the base soil 32 of the embankment facing the water is leveled and compacted and the crushed stone cushion layer 31 is leveled, on-site layout and positioning are carried out according to the size of the prefabricated blocks 10 with a large porosity, and an anchor 30 is inserted into the center position of each prefabricated block 10 with a large porosity. The soil block 20 is sleeved on the anchor 30 through the through hole 21, and the prefabricated block 10 with a large porosity is sleeved on the soil block 20. The adjacent prefabricated blocks 10 with a large porosity are tightly spliced, and the slope protection can be quickly laid and formed, which effectively shortens the construction period and can quickly play a protective role.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas, characterized in that: The slope protection comprises: a prefabricated block with a large porosity ratio (10), a soil block (20) and an anchor (30); A stepped hole is provided in the middle of the large porosity prefabricated block (10), wherein the large hole of the stepped hole faces downward and the small hole faces upward; The shape and size of the soil block (20) match the stepped hole, and a through hole (21) is opened in the middle of the soil block (20); The head end of the anchor (30) passes through the gravel cushion layer (31) and is inserted into the flood-facing slope foundation soil (32) of the embankment, and the tail end of the anchor (30) is exposed; The soil block (20) is sleeved on the end of the anchor (30) through the through hole (21); the prefabricated block (10) with a large porosity ratio is sleeved on the soil block (20) through the stepped hole.

2. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 1 is characterized in that: The soil blocks (20) are soil blocks that are pre-planted with grass.

3. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 1 is characterized in that: The large porosity prefabricated block (10) is a hexagonal hollow prefabricated block.

4. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 3 is characterized in that: The outer side length L of the large porosity prefabricated block (10) is 300 mm, and the thickness H is 120 mm.

5. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 3 is characterized in that: The stepped holes include: small holes and large holes; Both the small and large holes are hexagonal holes; The shortest distance d from the small hole wall to the outer wall of the large porosity prefabricated block (10) is 80 mm; The shortest distance D from the large hole wall to the outer wall of the large porosity prefabricated block (10) is 50 mm.

6. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 5 is characterized in that: The thickness of the small hole and the large hole are both 60 mm.

7. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 1 is characterized in that: The diameter of the through hole (21) is 10 mm.

8. The assembled large-porosity prefabricated block slope protection suitable for water level fluctuation areas according to claim 1 is characterized in that: The anchor (30) has a diameter of 6 mm and a length of 500 mm; the exposed end of the anchor (30) has a length in the range of 95 mm to 105 mm.

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