CN212534190U - Transmission tower foundation structure suitable for karst area - Google Patents
Transmission tower foundation structure suitable for karst area Download PDFInfo
- Publication number
- CN212534190U CN212534190U CN202020937256.6U CN202020937256U CN212534190U CN 212534190 U CN212534190 U CN 212534190U CN 202020937256 U CN202020937256 U CN 202020937256U CN 212534190 U CN212534190 U CN 212534190U
- Authority
- CN
- China
- Prior art keywords
- foundation
- plate
- stirrup
- reinforced concrete
- basis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 210000003205 muscle Anatomy 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 235000019994 cava Nutrition 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- ZHVOBYWXERUHMN-KVJKMEBSSA-N 3-[(3s,5r,8r,9s,10s,13s,14s,17s)-10,13-dimethyl-3-[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-17-yl]-2h-furan-5-one Chemical compound O([C@@H]1C[C@H]2CC[C@@H]3[C@@H]([C@]2(CC1)C)CC[C@]1([C@H]3CC[C@@H]1C=1COC(=O)C=1)C)[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O ZHVOBYWXERUHMN-KVJKMEBSSA-N 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model discloses a transmission of electricity pylon foundation structure suitable for karst area, by reinforced concrete foundation king post, dig the hole basis, plate-type basis, reinforcing bar and stirrup constitute, reinforced concrete foundation king post is located and is dug in the hole basis, reinforcing bar and the stirrup that is equipped with vertical atress in the reinforced concrete foundation king post, the well lower part of digging the hole basis is equipped with fixed concrete piece, fixed concrete piece below is equipped with plate-type basis, the vertical atress reinforcing bar anchor of reinforced concrete foundation king post is in plate-type basis, plate-type basis's bottom surface is equipped with the bed course. The utility model has the characteristics of the commonality is strong, and the cost is with low costs and environmental protection is good etc.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of the transmission tower basis, concretely relates to transmission tower foundation structure suitable for karst area.
[ background of the invention ]
For karst development areas, the power transmission line tower positions are many-sided and wide, and the tower positions cannot completely avoid karst caves. When the bearing capacity and the uplift force of the transmission tower foundation cannot meet the stress requirement due to insufficient thickness of the top plate of the karst cave, treatment is needed. The common processing modes of the transversely developed karst cave comprise a karst cave backfilling method and a through cave supporting method, but for the vertical karst cave, particularly the vertical development is deep, the backfilling amount is often too large, and the through cave supporting method cannot be directly applied. In the past, the method for treating the vertical karst cave by reducing the tower base level is also available, and although the stability of the tower base can be ensured by reducing the base level, the prescription amount and the external earth-moving stone are large, and the environmental damage is relatively large. Aiming at the condition that the power transmission line tower foundation is located in the karst area, the upper hole digging foundation and the foundation structure formed by combining the lower plate type foundation and the bottom concrete plug are adopted, the side frictional resistance and the side rock mass of the hole digging foundation meet the pull-up force and the horizontal force of the power transmission tower, and the plate type foundation and the bottom concrete plug meet the downward pressure bearing capacity of the power transmission tower, so that the problem of the vertical tower in the vertical karst cave area is solved, and the vertical karst cave with the irregular shape also has better universality.
[ Utility model ] content
An object of the utility model is to provide a transmission of electricity pylon foundation structure suitable for karst area to it is poor to solve the prior art commonality, and cost is with high costs and the big scheduling problem of environmental destruction.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a transmission of electricity pylon foundation structure suitable for karst area, is by reinforced concrete basis principal post, digs the hole basis, plate foundation, reinforcing bar and stirrup constitute, reinforced concrete basis principal post is located in digging the hole basis, be equipped with the reinforcing bar and the stirrup of vertical atress in the reinforced concrete basis principal post, the well lower part of digging the hole basis is equipped with fixed concrete piece, fixed concrete piece below is equipped with plate foundation, the steel bar anchor of the reinforced concrete basis principal post in digging the hole basis is in plate foundation's bottom surface, plate foundation's bottom surface is equipped with the bed course.
Furthermore, the stirrup is divided into an inner layer and an outer layer, namely an outer stirrup and an inner stirrup, the outer stirrup is arranged on the outer ring of the steel bar, and the inner stirrup is arranged on the inner ring of the steel bar.
Further, the top of plate foundation is equipped with plate foundation upper portion main muscle, the bottom of plate foundation is equipped with plate foundation lower part main muscle, be equipped with the erection reinforcing bar between the plate foundation upper portion main muscle at plate foundation top and the plate foundation lower part main muscle of plate foundation bottom.
Furthermore, two ends of the erection steel bar are respectively tied to the top of the plate type foundation and are provided with the joint of the upper main bar of the plate type foundation and the lower main bar of the plate type foundation at the bottom of the plate type foundation.
Further, the axis of the reinforced concrete foundation main column is coaxially aligned with the hole center of the excavated foundation and the bottom center of the plate foundation.
Furthermore, a grouted stone concrete plug is arranged below the cushion layer.
The utility model discloses the beneficial effect who reaches is:
the method is suitable for the transverse karst cave, can be used for the vertical karst cave with deeper development and the karst caves with irregular shapes and staggered with each other, and has strong universality; compared with the conventional over-irrigation method, the utility model has less material consumption and saves the manufacturing cost of the body; compared with a base level reducing method, the utility model does not need to perform a large amount of squaring on the tower position, and the broken stone formed by excavation of the foundation pit can be made into the body of the utility model, thereby having better economic benefit and environmental protection benefit; the use of the masonry concrete plug and the cushion strengthens the bearing capacity of the downward pressing, and the stability and the bearing performance are excellent.
[ description of the drawings ]
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a front view of the present invention;
fig. 2 is a plan view of the present invention.
1. A ground plane; 2. a reinforced concrete foundation main column; 3. reinforcing steel bars; 4. an outer stirrup; 5. an inner stirrup; 6. a plate foundation; 7. fixing the concrete block; 8. main ribs on the upper part of the plate foundation; 9. erecting steel bars; 10. the lower main rib of the plate foundation; 11. grouted stone concrete plugs; 12. and (5) cushion coating.
[ detailed description ] embodiments
The following is a detailed description of specific embodiments.
The present invention will be described in further detail with reference to the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
As shown in fig. 1, a transmission of electricity pylon foundation structure suitable for karst area comprises reinforced concrete basis principal post 2, the hole foundation that digs, plate foundation 6, reinforcing bar 3 and stirrup constitute, and reinforced concrete basis principal post 2 is located in the hole foundation that digs, and reinforced concrete basis principal post 2 is internal to be equipped with reinforcing bar 3 and the stirrup of vertical atress, and the stirrup divide into inside and outside two-layer, outer stirrup 4 and interior stirrup 5 promptly, as shown in fig. 2, 3 outer rings of reinforcing bar are located to outer stirrup 4, and the inner ring of reinforcing bar 3 is located to interior stirrup 4.
Dig the well lower part of hole basis and be equipped with fixed concrete piece 7, fixed concrete piece 7 below is equipped with board-like basis 6, the top of board-like basis 6 is equipped with board-like basic upper portion owner muscle 8, the bottom of board-like basis 6 is equipped with board-like basic lower part owner muscle 10, be equipped with between the board-like basic upper portion owner muscle 8 at board-like basic 6 top and the board-like basic lower part owner muscle 10 of board-like basic 6 bottom and erect reinforcing bar 9, the both ends of erecting reinforcing bar 9 are ligatured respectively and are equipped with board-like basic upper portion owner muscle 8 and board-like basic 6's bottom in the top of board-like basis 6 and are equipped with board-like basic lower part owner muscle 10's node department, dig 3 anchors on board-like basis 6 of reinforcing bar concrete foundation king post 2 in hole basis 6, the bottom surface of board-like basis 6 is.
The axis of the reinforced concrete foundation main column 2 is coaxially aligned with the hole center of the excavated foundation and the bottom center of the plate foundation 6.
The utility model discloses a size carries out corresponding modification according to the landform, but the structure does not change.
The working principle is as follows: firstly, exploration of a karst cave: and (5) exploring the development condition of the karst cave, locally expanding the entrance of the karst cave and reserving a construction operation space. Then basic design is carried out: designing the width and height of the plate type foundation 6 and the diameter and depth of the excavated foundation according to the size of the explored karst cave, and if the operation space of the foundation construction is insufficient, locally expanding the foundation; and calculating the reinforcement related to the foundation through the force transfer of the upper structure of the power transmission tower. Then bottom pouring: in order to meet the bearing capacity of the downward pressure, a masonry concrete plug is arranged in the karst cave crack development range below the bottom of the utility model for plugging, and the material of the masonry can be obtained by using the rock blocks formed by karst cave blasting; a concrete-shaped cushion layer 12 with the thickness of 70mm is arranged on the upper layer of the masonry concrete plug 11, and after the cushion layer 12 is solidified, the construction of the plate foundation 6 is carried out. Then, the plate foundation 6 is built: embedding the lower main reinforcement 10 of the plate foundation into the karst pit wall processed at the periphery, constructing by taking the pit wall as a template, and reserving positioning reinforcements (namely, the height of the individual erection reinforcements 9 is designed to be higher than that of the upper main reinforcement 8 of the plate foundation on the top surface of the plate foundation 6) aligned with the upper excavated foundation and anchoring positions of the longitudinal stressed reinforcements 3 of the excavated foundation, which can extend into the bottom surface of the plate foundation 6. Then, digging hole foundation building: and (2) welding and manufacturing a steel reinforcement cage by using a steel reinforcement 3, an outer stirrup 4 and an inner stirrup 5 on the ground, checking data and positions, after the situation that no errors exist is confirmed, placing the steel reinforcement cage in the hole digging foundation, taking the distance between the outer edge of the steel reinforcement 3 stressed longitudinally and the inner side surface of the hole digging foundation to be 60mm, rechecking whether a pin at the bottom of the steel reinforcement cage is in the anchoring position reserved in the plate type foundation 6, and pouring after compounding without errors. And finally, pouring a foundation: treat above-mentioned all construction process and accomplish the back concreting, concrete once waters and accomplishes, and the concrete of the volume of irritating between basis and the irregular cliff with the reference numeral according to current transmission line pylon basic design trade regulation, and basic concrete adopts C25 and above reference numeral, has accomplished to this the utility model discloses an installation and pouring work, follow-up ending work just differs here and has been repeated.
The utility model is suitable for both horizontal karst caves and deeper vertical karst caves and irregular and staggered karst caves, and has strong universality; compared with the conventional over-irrigation method, the utility model has less material consumption and saves the manufacturing cost of the body; compared with a base level reducing method, the utility model does not need to perform a large amount of squaring on the tower position, and the broken stone formed by excavation of the foundation pit can be made into the body of the utility model, thereby having better economic benefit and environmental protection benefit; the use of the masonry concrete plug and the cushion strengthens the bearing capacity of the downward pressing, and the stability and the bearing performance are excellent.
The above description should not be taken as limiting the invention to the specific embodiments, but rather, as will be apparent to those skilled in the art, numerous modifications and variations are possible without departing from the inventive concepts herein disclosed, and it is intended to cover all modifications and variations of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a transmission of electricity pylon foundation structure suitable for karst area comprises reinforced concrete basis principal post, the foundation of digging a hole, plate-type basis, reinforcing bar and stirrup, its characterized in that: the reinforced concrete foundation main column is arranged in the hole digging foundation, a longitudinal stressed steel bar and a stirrup are arranged in the reinforced concrete foundation main column, a fixed concrete block is arranged at the middle lower part of the hole digging foundation, a plate type foundation is arranged below the fixed concrete block, the longitudinal stressed steel bar of the reinforced concrete foundation main column is anchored on the plate type foundation, and a cushion layer is arranged on the bottom surface of the plate type foundation.
2. A power transmission tower infrastructure adapted for use in karst regions according to claim 1, wherein: the stirrup is divided into an inner layer and an outer layer, namely an outer stirrup and an inner stirrup, the outer stirrup is arranged on the outer ring of the steel bar, and the inner stirrup is arranged on the inner ring of the steel bar.
3. A power transmission tower infrastructure adapted for use in karst regions according to claim 1, wherein: the top of plate foundation is equipped with plate foundation upper portion main muscle, the bottom of plate foundation is equipped with plate foundation lower part main muscle, be equipped with between the plate foundation upper portion main muscle at plate foundation top and the plate foundation lower part main muscle of plate foundation bottom and erect the reinforcing bar.
4. A power transmission tower infrastructure adapted for use in karst regions according to claim 3, wherein: and the two ends of the erection steel bar are respectively tied to the top of the plate type foundation and provided with a joint of the upper main bar of the plate type foundation and the lower main bar of the plate type foundation at the bottom of the plate type foundation.
5. A power transmission tower infrastructure adapted for use in karst regions according to claim 1, wherein: the axis of the reinforced concrete foundation main column is coaxially aligned with the hole center of the excavated foundation and the bottom center of the plate foundation.
6. A power transmission tower infrastructure adapted for use in karst regions according to claim 1, wherein: and a grouted stone concrete plug is arranged below the cushion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020937256.6U CN212534190U (en) | 2020-05-28 | 2020-05-28 | Transmission tower foundation structure suitable for karst area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020937256.6U CN212534190U (en) | 2020-05-28 | 2020-05-28 | Transmission tower foundation structure suitable for karst area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212534190U true CN212534190U (en) | 2021-02-12 |
Family
ID=74543739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020937256.6U Expired - Fee Related CN212534190U (en) | 2020-05-28 | 2020-05-28 | Transmission tower foundation structure suitable for karst area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212534190U (en) |
-
2020
- 2020-05-28 CN CN202020937256.6U patent/CN212534190U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110004991B (en) | Underground structure anti-floating system based on convex wing foot plate and construction method | |
| CN109183838B (en) | A kind of high anti-floating cracking resistance basement floor constructions and its design method | |
| CN110258362A (en) | A kind of city underground engineering passes through the deformation control method of existing bridge | |
| CN101838957A (en) | Integral type T-shaped outer cantilever roads and construction method thereof | |
| CN113235638A (en) | Construction method of composite pile foundation with long pile and short pile integrated | |
| CN212175751U (en) | Integrated steel reinforcement cage for combined construction of underground continuous wall and cast-in-situ bored pile | |
| CN213143117U (en) | Assembled keyway basis retaining wall structure | |
| CN212534190U (en) | Transmission tower foundation structure suitable for karst area | |
| CN112681376A (en) | Construction method of shaft type underground stereo garage | |
| CN112922646A (en) | Building method of underground excavation station excavated by large-section single-span support through superposed arch-wall integrated type | |
| CN111424685A (en) | Deep water falling hole processing structure and method for backfilling foundation in large karst depression | |
| CN107700434A (en) | A kind of dome grating formula armored concrete mud-rock flow blocking dam and its construction process | |
| CN204780975U (en) | A four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit | |
| CN207109842U (en) | A kind of rock foundation pole and tower foundation structure | |
| CN215165884U (en) | Earthquake-resistant foundation for building | |
| CN212405178U (en) | Deep water falling hole processing structure of backfill foundation in large karst depression | |
| CN212375896U (en) | Line tower type-returning pile-anchor composite foundation suitable for karst region | |
| CN111894036B (en) | Construction method for additionally arranging basement on strip-shaped foundation building | |
| CN212656216U (en) | Foundation pit fender pile suitable for space limited condition | |
| CN212388582U (en) | Assembled open caisson structure | |
| CN110029665B (en) | Miniature pile foundation for resisting bad engineering characteristics of expansive soil foundation and construction method thereof | |
| CN210122735U (en) | Underground structure anti-floating system based on outward-protruding wing foot plate | |
| CN210507458U (en) | Vertical anchor supporting system that draws of foundation ditch | |
| CN209260748U (en) | A kind of stepped tower crane | |
| CN110424488A (en) | A kind of construction method of diaphram wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 |