CN219773031U - Rock-socketed buttress Liang Zhuyan anchor beam structure - Google Patents
Rock-socketed buttress Liang Zhuyan anchor beam structure Download PDFInfo
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- CN219773031U CN219773031U CN202321224770.5U CN202321224770U CN219773031U CN 219773031 U CN219773031 U CN 219773031U CN 202321224770 U CN202321224770 U CN 202321224770U CN 219773031 U CN219773031 U CN 219773031U
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- 239000011435 rock Substances 0.000 claims abstract description 50
- 238000005266 casting Methods 0.000 description 14
- 238000009412 basement excavation Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides a rock-embedded buttress Liang Zhuyan anchor beam structure, includes the rock anchor beam body of pouring, and rock anchor beam body of pouring lower extreme is equipped with reserved core wall, and reserved core wall department array has horizontal groove, longitudinal groove, wherein, has pour horizontal pouring beam in the horizontal groove, has pour vertical pouring post in the longitudinal groove, and horizontal pouring beam, vertical pouring post and reserved core wall constitute wholly. The rock-socketed buttress Liang Zhuyan anchor beam structure provided by the utility model can improve the efficiency.
Description
Technical Field
The utility model relates to a rock anchor beam, in particular to a rock-socketed buttress Liang Zhuyan anchor beam structure.
Background
For the underground factory building of the hydroelectric engineering, rock anchor beams are adopted as bridge crane rails in the installation process of the machine set, heavy large pieces are hoisted, the self load of the bridge crane and the load of the maximum hoisting equipment are hundred tons, the self stability problem of the rock anchor beams is particularly important, and particularly under the condition that the surrounding rock quality of the factory building is low, buttress columns or buttress wall crane beams are generally adopted.
The problems of the prior art mainly include two aspects: firstly, the factory building excavation occupies a main key construction period of power station construction, after the buttress columns or buttress walls are poured in layers, the concrete strength reaches 28 days of age, the factory building can be excavated later, and the construction period is controlled very unfavorably; secondly, the buttress column or the buttress wall needs to be poured to an installation space, which means that the concrete pouring thickness occupies the effective space of the factory building, so that the thickness is required to be considered in the factory building design process, the excavation size of the factory building is increased by a little, the stability problem of the factory building is more outstanding, the related supporting requirement is higher, and the manufacturing cost is higher. In the rapid development stage of the pumping and accumulating business, engineering safety and engineering construction period are key for determining whether engineering construction is successful or not.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the rock-socketed buttress Liang Zhuyan anchor beam structure, which reduces the blasting amount, reduces the excavation size of a factory building, enhances the deformation resistance of a side wall, optimizes the arrangement mode of pouring templates, shortens the concrete pouring amount, shortens the pouring period and the like.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a rock-embedded buttress Liang Zhuyan anchor beam structure, includes the rock anchor beam body of pouring, and rock anchor beam body of pouring lower extreme is equipped with reserved core wall, and reserved core wall department array has horizontal groove, longitudinal groove, wherein, has pour horizontal pouring beam in the horizontal groove, has pour vertical pouring post in the longitudinal groove, and horizontal pouring beam, vertical pouring post and reserved core wall constitute wholly.
And the intersection of the transverse pouring beam and the longitudinal pouring column is provided with an anchor cable support.
The cross section width of the transverse grooves and the longitudinal grooves is between 0.3m and 1m, and the interval between the adjacent transverse grooves or the interval between the adjacent longitudinal grooves is between 3m and 5 m.
The utility model discloses an anchor beam structure of a rock-socketed buttress Liang Zhuyan, which has the following technical effects:
1) The rock mass excavation amount is saved, and meanwhile, the original buttress concrete backfill amount can be effectively saved through the embedded buttress beam column, so that the cost is saved.
2) The excavation size of the plant cavity is reduced, and the method has important significance on surrounding rock stability in a large-span plant structure.
3) The restraint of the beam column is fully utilized, and the deformation resistance of the side wall is enhanced.
4) The bearing capacity and the stress uniformity of the rock anchor beam can be effectively increased by utilizing the side walls and the buttress beam columns.
5) And through the combination arrangement of the anchor cables, the integrity of the rock mass and the embedded buttress beam column is enhanced, and the deformation resistance of the side wall is enhanced.
6) Under the condition of construction period tension, the transverse beam contacted with the lower edge of the rock anchor beam can be synchronously poured with the rock anchor beam, and is synchronous and equal in strength with the rock anchor beam, and the load of the rock anchor beam is borne by the reserved core wall in early stage; due to mutual constraint of the rock mass and the pouring body, the excavation of the lower layer rock mass can be started while the strength of the embedded buttress beam column reaches a certain value and the strength continues to be equal outside the safety distance. So as to shorten the construction period of engineering straight line.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic illustration of a casting of a conventional rock anchor beam.
Fig. 2 is a schematic structural view of a conventional rock anchor beam.
Fig. 3 is a schematic structural view of the present utility model.
In the figure: the rock core wall 2, the transverse groove 3, the longitudinal groove 4, the rock anchor beam casting body 5, the transverse casting beam 6, the longitudinal casting column 7, the anchor pier head 8, the factory entrance traffic hole 9 and the buttress column casting body 10 are reserved on the surrounding rock excavation surface 1 on the upper portion of the rock anchor beam.
Detailed Description
As shown in fig. 1-2, the structure is an integral structure of an existing rock anchor beam casting body 5 and a buttress casting body 10, Y represents a casting direction, a represents a first layer, b represents a second layer, c represents a third layer, d represents a fourth layer, and e represents a casting division line.
As shown in fig. 3, the embedded buttress Liang Zhuyan anchor beam structure comprises a rock anchor beam pouring body 5, wherein the rock anchor beam pouring body 5 is poured in a conventional manner, and anchor rods and anchor ropes are arranged. The upper end of the rock anchor beam pouring body 5 is provided with a surrounding rock excavation surface 1 at the upper part of the rock anchor beam, which is consistent with the traditional mode. The lower extreme of rock anchor beam pouring body 5 is equipped with reserved core wall 2, and reserved core wall 2 is the region of 1m thickness excavation that reduces in former reservation district, and the rock mass of leaving, its thickness can be adjusted according to the design requirement. The reserved core wall 2 is provided with a transverse groove 3 and a longitudinal groove 4, wherein the transverse groove 3 is formed by excavating a boundary line according to an original reserved area in a horizontal direction, the width of the groove is set to be 0.3m, and the groove can be adjusted according to design requirements. The interval between the adjacent transverse grooves is preferably 3-5m, and can be properly adjusted to be large after calculation so as to reduce the excavation difficulty, the concrete backfill amount and the like. The longitudinal groove 4 is formed by excavating in the vertical direction according to the boundary line of the original reserved area, and the width of the groove is set to be 0.3m and can be adjusted according to design requirements. The spacing between the left and right adjacent longitudinal grooves is preferably 5-10m, and can be properly adjusted to be large after calculation so as to reduce the excavation difficulty, the concrete backfill amount and the like.
A transverse pouring beam 6 is poured in the transverse groove 3, and a longitudinal pouring column 7 is poured in the longitudinal groove 4. In the pouring process of the transverse pouring beam 6, rock masses at two sides of the groove and the inner rock mass are used as pouring constraints, only the outer single-side templates are required to be arranged, steel bars are required to be distributed before the templates are arranged, and concrete is adopted for trowelling in advance in uneven sections, so that gap control among the templates is realized. The lower edge of the rock anchor beam is contacted with the transverse pouring beam, and under the condition of tension in construction period, the transverse beam contacted with the lower edge of the rock anchor beam can be synchronously poured with the rock anchor beam and is synchronous and equal in strength with the rock anchor beam, so that the transverse pouring beam plays a role in bearing self load to a certain extent, and does not occupy equal strength periods of the buttress beam column. In the pouring process of the longitudinal pouring column 7, rock mass on two sides of the groove and rock mass on the inner side are used as pouring constraints, only the outside single-side templates are required to be arranged, and the gap control between the templates can be realized in an early trowelling mode on uneven sections.
In addition, according to the rock mass, consider to set up anchor rope support in beam column intersection department, can guarantee the rock mass problem on the one hand, can strengthen the integrality of beam column and rock mass on the one hand, guarantee the atress. For the place with the anchor cable support, the anchor cable is installed at first, a reinforcing steel bar embedded part is reserved at the anchor pier head 8, the casting integrity of the subsequent beam column is guaranteed, and meanwhile the damage to the beam column caused by the fact that the beam column is cast first and then the anchor cable is installed is avoided.
The device utilizes a mature smooth blasting technology, realizes the fine blasting of an opposite structure by locally reducing blasting excavation thickness in the smooth blasting process of the side wall of the rock mass, thereby realizing the purpose of protecting the rock mass by utilizing the rock mass, creating conditions for the structure formation and the function of the embedded type buttress frame column, enhancing the bearing capacity and the stress uniformity of the rock anchor beam due to the formation of the buttress beam column, and enhancing the deformation control capacity of the side wall rock mass.
Working principle and process: the depth dimension of the original reserved area is generally 3-4m, in the accurate photoexplosion process, the depth of a local drilling hole is reduced by 1m, hole forming explosion is carried out according to the requirement in the photoexplosion design, 0.3mx1.0m notch is formed to serve as a buttress casting space, buttress intervals are arranged according to the design requirement, 0.3mx1.0m notch is formed in the same mode in the horizontal direction to serve as a casting buttress casting space, the intervals are arranged according to the design requirement, and then casting is carried out to form a whole.
Claims (3)
1. The utility model provides an anchor beam structure of rock-socketed buttress Liang Zhuyan which characterized in that: including rock anchor beam pouring body (5), rock anchor beam pouring body (5) lower extreme is equipped with reserved core wall (2), and reserved core wall (2) department array has transverse groove (3), longitudinal groove (4), wherein, has pour transversely in transverse groove (3) and has pour roof beam (6), has pour vertically in longitudinal groove (4) and pour post (7), transversely pour roof beam (6), vertically pour post (7) and reserved core wall (2) constitution whole.
2. A rock-fill buttress Liang Zhuyan anchor beam structure according to claim 1, further comprising: and anchor cable supports are arranged at the intersections of the transverse pouring beams (6) and the longitudinal pouring columns (7).
3. A rock-fill buttress Liang Zhuyan anchor beam structure according to claim 1, further comprising: the cross section width of the transverse grooves (3) and the longitudinal grooves (4) is between 0.3m and 1m, and the interval between the adjacent transverse grooves (3) or the interval between the adjacent longitudinal grooves (4) is between 3m and 5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224770.5U CN219773031U (en) | 2023-05-19 | 2023-05-19 | Rock-socketed buttress Liang Zhuyan anchor beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224770.5U CN219773031U (en) | 2023-05-19 | 2023-05-19 | Rock-socketed buttress Liang Zhuyan anchor beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219773031U true CN219773031U (en) | 2023-09-29 |
Family
ID=88104202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321224770.5U Active CN219773031U (en) | 2023-05-19 | 2023-05-19 | Rock-socketed buttress Liang Zhuyan anchor beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219773031U (en) |
-
2023
- 2023-05-19 CN CN202321224770.5U patent/CN219773031U/en active Active
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