CN219973101U - High barricade integrated configuration suitable for mixing dam - Google Patents
High barricade integrated configuration suitable for mixing dam Download PDFInfo
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- CN219973101U CN219973101U CN202321005370.5U CN202321005370U CN219973101U CN 219973101 U CN219973101 U CN 219973101U CN 202321005370 U CN202321005370 U CN 202321005370U CN 219973101 U CN219973101 U CN 219973101U
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- 239000011435 rock Substances 0.000 claims abstract description 31
- 239000004567 concrete Substances 0.000 claims abstract description 29
- 230000005484 gravity Effects 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 12
- 238000009412 basement excavation Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000037237 body shape Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of hydraulic engineering design, in particular to a high retaining wall combined structure suitable for a mixing dam, wherein a plurality of sections of high retaining wall structures are arranged at the combined position of a soil-rock dam and a concrete gravity dam along the parallel water flow direction of the combined position of the soil-rock dam and the concrete gravity dam, the multi-section high retaining wall combined structure is adopted to form an integral high retaining wall combined structure, the effect of connecting the soil-rock dam and the concrete gravity dam is achieved, the upper part of the high retaining wall combined structure is in a trapezoid structure, a plurality of steps are obliquely arranged at the two sides of the bottom of the high retaining wall combined structure from outside to inside respectively, the excavation construction amount of the whole retaining wall foundation can be reduced by arranging the structure, and meanwhile, the material use amount of the retaining wall is also saved, and the construction cost is further saved; the high retaining wall combined structure has good protection effect on the earth-rock dam filling body and the dam slope, reduces the influence of settlement deformation of the high retaining wall and the earth-rock dam on the integrity of the mixed dam, and prevents the joint of the earth-rock dam slope from being damaged due to the occurrence of a free surface.
Description
Technical Field
The utility model relates to the technical field of hydraulic engineering design, in particular to a high retaining wall combination structure suitable for a mixing dam.
Background
The mixing dam formed by combining the earth and rockfill dam and the concrete gravity dam can fully utilize local materials, reduce construction diversion and drainage building investment, and has the advantages of low cost, high construction filling speed and low geological condition requirement. In the design of a mixed dam, in order to ensure the stability of a filling body of the earth-rock dam and a dam slope dam body, the good connection of the earth-rock dam section and the concrete gravity dam section is realized, a concrete high retaining wall parallel to the water flow direction is usually arranged at the joint position of the earth-rock dam section and the concrete gravity dam section, and the two sides of the high retaining wall are respectively connected with the cross sections of the concrete gravity dam and the earth-rock dam. The arranged high retaining wall meets the design specification of the concrete gravity dam and the design specification of the retaining wall simultaneously, has the water retaining function and also has the function of filling the retaining stone into the body.
In practice, the high retaining wall of the mixing dam often has the defects of large body shape, large burial depth and large engineering quantity, and the conditions of complex body shape and inconvenient construction often occur. The optimization research of the high retaining wall at the joint part of the mixing dam is less, the common high retaining wall is mostly linear, and the high retaining wall is not suitable for the joint part of the mixing dam. How to solve the adverse problem in the design and construction of the high retaining wall of the mixing dam by simple and easy measures is an important technology for the dam type application of the mixing dam.
Disclosure of Invention
The utility model overcomes the defects of the prior art, provides the high retaining wall combined structure suitable for the mixed dam, particularly can reduce the concrete pouring amount of the high retaining wall and the excavation engineering amount of the foundation earth and stone of the high retaining wall while realizing good connection of the dam bodies at two sides, and has simple and reliable structure and easy construction.
The technical problems solved by the utility model can be realized by adopting the following technical scheme:
the utility model provides a high barricade integrated configuration suitable for mixing dam, includes earth-rock dam and concrete gravity dam at least, sets up multistage high barricade structure at earth-rock dam and concrete gravity dam integrated position along the length direction of two integrated position, and the high barricade integrated configuration of multistage high barricade structure constitution, high barricade integrated configuration upper portion is the trapezium structure, high barricade integrated configuration's bottom both sides are provided with a plurality of ladders by outer to interior slope respectively, the side of the high barricade integrated configuration of concrete gravity dam one side is the plumb face, high barricade integrated configuration is located the face of being in contact with earth-rock dam and is the joint face, and this joint face is the inclined plane that has certain slope from top to bottom.
Further, a permanent seam is arranged between the adjacent high retaining wall structures, the ladder comprises a horizontal section and step inclined surface sections, and at most two step inclined surface sections are arranged at the bottom of each high retaining wall structure.
Further, the height and length ranges of the step inclined surface section are H, H is more than or equal to 1.5m and less than or equal to 2.0m, the distance from the edge of the step inclined surface section to the permanent seam is d, and the value of d is not less than the height H of the step inclined surface section.
Further, when two step inclined surface sections are arranged at the bottom of the high retaining wall structure, the minimum horizontal interval length between the adjacent step inclined surface sections is not smaller than the height H of the step inclined surface sections.
Further, the top of each section of high retaining wall structure is provided with a protective ridge along the length direction, the height of the protective ridge is h which is more than or equal to 0.5m and less than or equal to 1.0m, the thickness of the protective ridge is D which is more than or equal to 0.5m and less than or equal to 1.0m.
Further, the length of each section of high retaining wall structure is L, and L is more than or equal to 6m and less than or equal to 15m.
Further, the slope surfaces on two sides of the high retaining wall combination structure of the trapezoid structure extend downwards in a stepped mode, the height of the high retaining wall structure at the central axis position of the high retaining wall combination structure is the highest point, and the bottom of the high retaining wall structure is a horizontal plane.
Further, the slope ratio of the joint surface is m, and the range of m is 1:0.3-0.5.
Further, the high retaining wall combined structure is provided with 3-11 high retaining wall structures in total, and the high retaining wall structure in the middle is provided with 1-2 high retaining wall structures.
The beneficial effects of the utility model are as follows:
compared with the prior art, the high retaining wall combined structure has good protection effect on the earth-rock dam filling body and the dam slope, reduces the influence of settlement deformation of the high retaining wall and the earth-rock dam on the integrity of the mixed dam, and prevents the joint of the earth-rock dam and the dam slope from being damaged due to the occurrence of a free surface; the good connection of the dam bodies at the two sides is realized, and meanwhile, the concrete pouring amount and the steel bar amount of the high retaining wall can be reduced, and the excavation engineering amount of the foundation earth and stone can be reduced; the high retaining wall structure is simple and reliable, is easy to construct, and each section of high retaining wall structure system is controlled by 4-7 simple sections, and the single section of high retaining wall has no complex shapes such as torsion surfaces, slope changes and the like.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the high retaining wall structure of the present utility model.
Fig. 2 is a schematic A-A section of the high-retaining-wall combined structure of the present utility model.
FIG. 3 is a schematic view of a B-B cross-sectional structure of the high retaining wall structure according to the present utility model.
Fig. 4 is a schematic view of a C-C section of the high retaining wall structure according to the present utility model.
Fig. 5 is a schematic perspective view of a high retaining wall combining structure according to the present utility model.
In the figure: 1-high retaining wall structure, 2-permanent joint, 3-earth-rock dam, 4-concrete gravity dam, 5-ladder, 6-vertical surface, 7-joint surface, 8-horizontal section, 9-step inclined surface section, 10-protective ridge and 11-ground line.
Detailed Description
In the following, a technical solution of a high retaining wall combination structure suitable for a mixing dam according to the embodiments of the present utility model will be described in detail through several specific embodiments.
Referring to fig. 1 and 5, a high retaining wall combined structure suitable for a mixed dam at least comprises an earth-rock dam 3 and a concrete gravity dam 4, wherein a plurality of sections of high retaining wall structures 1 are arranged at the combined position of the earth-rock dam and the concrete gravity dam along the length direction of the combined position, the multi-section high retaining wall combined structure 1 is adopted to form an integral high retaining wall combined structure, the functions of connecting the earth-rock dam 3 and the concrete gravity dam 4 are achieved, the upper part of the high retaining wall combined structure is a trapezoid structure, a plurality of steps 5 are arranged on the two sides of the bottom of the trapezoid structure from the furthest end to the inward inclined direction, the excavation construction amount of the whole retaining wall foundation can be reduced through the arrangement of the structure, meanwhile, the material usage amount of the retaining wall is also saved, further the construction cost is saved, the side surface of the high retaining wall combined structure positioned on one side of the concrete gravity dam 4 is a vertical surface 6, the surface of the high retaining wall combined structure is a joint surface 7, the joint surface 7 is provided with a certain slope from top to bottom, the slope is provided with stability for the whole high retaining wall structure, and meanwhile, the whole high retaining wall structure has stability, and the whole retaining wall 3 can be effectively blocked.
In the present utility model, reference numeral 11 represents the ground surface line, and the high retaining wall combination structure according to the present utility model can be designed according to the actual conditions of the concrete gravity dam 4 and the earth-rock dam 3, thereby determining the final body shape and size.
Referring to fig. 1, a permanent seam 2 is provided between adjacent high retaining wall structures 1, the permanent seam 2 is adopted for segmentation, the step 5 comprises a horizontal section 8 and a step inclined surface section 9, the step inclined surface section 9 at the bottom of each high retaining wall structure 1 is at most provided with two sections, and therefore stability of the single-section high retaining wall structure 1 is guaranteed, and meanwhile, the steps 5 are arranged at the bottoms of two sides of the whole, so that the ground grabbing force of the whole bottom is guaranteed, and the whole is more stable.
Referring to FIG. 1, the height and length ranges of the step inclined surface section 9 are H, H is 1.5 m.ltoreq.H.ltoreq.2.0 m, the distance from the edge of the step inclined surface section 9 to the permanent joint 2 is d, and the value of d is not less than the height H of the step inclined surface section 9; the deeper the excavation depth of the earth-rock dams 3 and the concrete gravity dams 4 at the two sides is, the larger the height and length of the step inclined surface sections 9 are, the more the number of the step inclined surface sections 9 is relatively, and the shorter the high retaining wall horizontal sections 8 are. The shallower the excavation depth of the earth-rock dam 3 and the concrete gravity dam 4 on both sides, the smaller the height and length of the step slope sections 9, the fewer the number of the step slope sections 9, the longer the high retaining wall horizontal section 8, the closer to the ordinary retaining wall.
When two step inclined surface sections 9 are arranged at the bottom of the high retaining wall structure 1, the minimum horizontal interval length between the adjacent step inclined surface sections 9 is not smaller than the height H of the step inclined surface sections 9, and the overall stability is ensured.
Referring to fig. 2, 3 and 4, the top of each section of high retaining wall structure 1 is provided with a protective ridge 10 along the length direction, the height of the protective ridge 10 is h, h is more than or equal to 0.5m and less than or equal to 1.0m, the thickness is D, and D is more than or equal to 0.5m and less than or equal to 1.0m; the elevation of the protective ridge 10 ridge and the contour dimension of the retaining wall are preferably adjusted to be integral multiples of 0.5, so that the construction is facilitated. The ridge thickness is D, D is more than or equal to 0.5m and less than or equal to 1.0m, when the height H0 of the high retaining wall is less than 20m, the lower limit of D is 0.5m, when the height H0 of the high gear z20i is more than 30m, the upper limit of D is 0.5m, and when the height H0 is less than 20m, the D takes corresponding values according to the proportion; the height of the 10 roof of the protective ridge is the height of the top of the high retaining wall, and the actual size can be adjusted and rounded according to the height and the shape of the retaining wall so as to facilitate construction; the initial elevation of the bottom of the protection ridge 10 is not lower than the lowest dam top elevation of the two side dam bodies.
The length of each section of high retaining wall structure 1 is L, and L is more than or equal to 6m and less than or equal to 15m.
The slope of the two sides of the high retaining wall combined structure of the trapezoid structure is in stepped downward extension, the height of the high retaining wall structure 1 positioned at the central axis position of the high retaining wall combined structure is the highest point, and the bottom of the high retaining wall structure is a horizontal plane, so that the construction cost is further reduced, meanwhile, the high retaining wall combined structure has a good protection effect on earth-rock dam filling bodies and dam slopes, the influence of settlement deformation of the high retaining wall and the earth-rock dam on the integrity of the mixed dam is reduced, and the damage caused by the occurrence of a temporary face at the joint of the earth-rock dam slopes is prevented.
The slope ratio of the joint surface 7 is m, and the range of m is 1:0.3-0.5; according to the condition that the lower the weathering degree of the rock stratum of the high retaining wall building surface is, the higher the bearing capacity of the bedrock is, the steeper the joint surface of the high retaining wall is, the lower limit of the slope ratio m is 0.3, the smaller the retaining wall is, and the less the concrete consumption is; the higher the weathering degree of the rock stratum of the high retaining wall building base surface is, the lower the bearing capacity of the bedrock is, the upper limit of the slope ratio m is 0.5, the larger the retaining wall body is, and the more the concrete consumption is.
The high retaining wall combination structure is provided with 3-11 high retaining wall structures 1 in total, and the high retaining wall structure in the middle is provided with 1-2 high retaining wall structures 1, so that the overall stability of each high retaining wall is ensured, and different numbers of high retaining wall structures 1 are arranged according to the heights of the dams at two sides.
In the utility model, the joint surface 7 of the middle and high retaining wall is provided with water stop, if the earth-rock dam 3 is an asphalt concrete core wall dam and a concrete face rockfill dam, the contact part of the joint surface 7 of the high retaining wall and the core wall seepage-proofing body or the seepage-proofing face plate is provided with a copper water stop sheet; if the earth-rock dam is a homogeneous dam or a clay core wall dam, the joint surface of the high retaining wall is provided with a thorn wall at the axial position of the dam so as to prolong the seepage path and play a role in water stopping.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the scope of the knowledge of those skilled in the art without departing from the spirit of the present utility model, which is within the scope of the present utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
The technical solutions between the embodiments may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art that when the combination of technical solutions contradicts or cannot be implemented, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present utility model.
Claims (9)
1. High barricade combination structure suitable for mixing dam includes earth-rock dam (3) and concrete gravity dam (4) at least, characterized by: the high barricade combination structure is characterized in that a plurality of sections of high barricade structures (1) are arranged at the combination positions of the earth and rockfill dam and the concrete gravity dam along the length direction of the combination positions of the earth and rockfill dam and the concrete gravity dam, the high barricade combination structure is formed by the sections of the high barricade structures (1), the upper part of the high barricade combination structure is a trapezoid structure, a plurality of steps (5) are respectively arranged on two sides of the bottom of the high barricade combination structure from outside to inside in an inclined manner, the side surface of the high barricade combination structure on one side of the concrete gravity dam (4) is a plumb surface (6), the surface of the high barricade combination structure, which is in contact with the earth and rockfill dam (3), is a joint surface (7), and the joint surface (7) is an inclined surface with a certain gradient from top to bottom.
2. The high wall joining structure for a mixing dam according to claim 1, wherein: the permanent joint (2) is arranged between every two adjacent high retaining wall structures (1), each step (5) comprises a horizontal section (8) and step inclined surface sections (9), and the maximum number of the step inclined surface sections (9) at the bottom of each high retaining wall structure (1) is two.
3. The high wall joining structure for a mixing dam according to claim 2, wherein: the height and length ranges of the step inclined surface section (9) are H, H is more than or equal to 1.5m and less than or equal to 2.0m, the distance from the edge of the step inclined surface section (9) to the permanent seam (2) is d, and the value of d is not less than the height H of the step inclined surface section (9).
4. A high wall joining structure for a mixing dam according to claim 3, wherein: when two step inclined surface sections (9) are arranged at the bottom of the high retaining wall structure (1), the minimum horizontal interval length between the adjacent step inclined surface sections (9) is not smaller than the height H of the step inclined surface sections (9).
5. A high wall joining structure for a mixing dam according to claim 1 or 2 or 3 or 4, wherein: the top of each section of high retaining wall structure (1) is provided with a protective ridge (10) along the length direction, the height of the protective ridge (10) is h which is more than or equal to 0.5m and less than or equal to 1.0m, the thickness of the protective ridge is D which is more than or equal to 0.5m and less than or equal to 1.0m.
6. The high wall joining structure for a mixing dam according to claim 5, wherein: the length of each section of high retaining wall structure (1) is L, and L is more than or equal to 6m and less than or equal to 15m.
7. The high wall joining structure for a mixing dam according to claim 1, wherein: the slope surfaces on two sides of the high retaining wall combination structure of the trapezoid structure extend downwards in a stepped mode, the height of the high retaining wall structure (1) at the central axis position of the high retaining wall combination structure is the highest point, and the bottom of the high retaining wall structure is a horizontal plane.
8. The high wall joining structure for a mixing dam according to claim 1, wherein: the slope ratio of the joint surface (7) is m, and the range of m is 1:0.3-0.5.
9. The high wall joining structure for a mixing dam according to claim 1, wherein: the high retaining wall combined structure is provided with 3-11 high retaining wall structures (1), and the high retaining wall structure in the middle is provided with 1-2 high retaining wall structures (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321005370.5U CN219973101U (en) | 2023-04-27 | 2023-04-27 | High barricade integrated configuration suitable for mixing dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321005370.5U CN219973101U (en) | 2023-04-27 | 2023-04-27 | High barricade integrated configuration suitable for mixing dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219973101U true CN219973101U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321005370.5U Active CN219973101U (en) | 2023-04-27 | 2023-04-27 | High barricade integrated configuration suitable for mixing dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219973101U (en) |
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2023
- 2023-04-27 CN CN202321005370.5U patent/CN219973101U/en active Active
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