CN110306497B - Dam middle layer gallery slag turning structure and construction method - Google Patents
Dam middle layer gallery slag turning structure and construction method Download PDFInfo
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- CN110306497B CN110306497B CN201910350113.7A CN201910350113A CN110306497B CN 110306497 B CN110306497 B CN 110306497B CN 201910350113 A CN201910350113 A CN 201910350113A CN 110306497 B CN110306497 B CN 110306497B
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- slag
- middle layer
- gallery
- iron sheet
- dowel
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- 239000002893 slag Substances 0.000 title claims abstract description 82
- 238000010276 construction Methods 0.000 title claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052742 iron Inorganic materials 0.000 claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 4
- 239000010959 steel Substances 0.000 claims 4
- 230000007547 defect Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000012876 topography Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Road Paving Structures (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a dam middle layer gallery slag turning structure, which comprises a middle layer gallery, wherein a slag blocking structure and a stressed framework are arranged at an outlet of the middle layer gallery; the slag blocking structure comprises a slag blocking iron sheet guardrail, a slag blocking iron sheet protective cage, a slag blocking fence and a buffer rubber; the stress framework comprises a dowel bar and a vertical rod. The invention can ensure that the middle layer gallery can normally turn slag under the condition of not repairing the road, does not influence the straight line construction period, has higher safety and solves the defect of poor economic safety of conventional slag discharge. The structure has the advantages of simplicity, safety, economy and easy adjustment.
Description
Technical Field
The invention relates to a dam middle layer gallery slag turning structure and a construction method, which belong to the field of hydraulic and hydroelectric engineering and can be also applied to the fields of traffic, mines and the like.
Background
As is well known, the middle layer gallery of the dam is positioned in the middle of the dam abutment of the dam, and when the dam is excavated, the conventional slag tapping is carried away after a repair road is connected to the outlet of the middle layer gallery; in recent years, the trend of the dam is from low to high, the trend of excavating partial dam abutment slope is steeper and steeper, the dam is limited by topography, even the dam cannot be repaired to the middle gallery, so that normal slag transportation cannot be carried out, only slag can be turned to the bottom of the dam slope to be crossed with the lower part, the engineering progress is severely restricted, the construction safety risk is increased, and the economic safety is poor.
Disclosure of Invention
Aiming at the defects of the prior art that the road cannot be repaired or the road repair is expensive due to the limitation of the topography condition when the middle layer gallery is excavated, the invention provides a dam middle layer gallery slag turning structure and a construction method aiming at the defect that the engineering progress is influenced by slag turning downwards.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a dam middle layer gallery slag turning structure comprises a middle layer gallery, wherein a slag blocking structure and a stressed framework are arranged at an outlet of the middle layer gallery; the slag blocking structure comprises a slag blocking iron sheet guardrail, a slag blocking iron sheet protective cage, a slag blocking fence and a buffer rubber; the stress framework comprises a dowel bar and a vertical rod.
Furthermore, the dowel bar is of a semicircular U-shaped structure, two ends of the dowel bar are anchored into rock bodies, the slag-blocking iron sheet protection cage is fixed on the dowel bar through half circles exposed outside, and the dowel bar is arranged at intervals from top to bottom. The upright rods are arranged on two sides of the dowel bar, are arranged from the outlet of the middle layer gallery to the bottommost part of the slag hole, and are connected with the dowel bar in the middle, so that a unified whole is formed.
Furthermore, the slag-blocking iron sheet guardrail is arranged at the outlet of the middle layer gallery and is in a round collar shape, envelops the edge of the outlet of the whole middle layer gallery and is fixed on the corresponding dowel bar.
Further, the slag-blocking iron sheet protection cage is fixedly arranged on the whole dowel bar and is semicircular, and the arrangement range is from the middle layer gallery outlet to the bottom.
Furthermore, the slag blocking fence is provided with three sides and is arranged near the bottom of the middle layer gallery outlet for fixing the slag discharging range and leaving one side as a slag discharging channel.
Further, one section of the buffer rubber is fixed on the dowel bar, and the other end of the buffer rubber is free.
The construction method of the dam middle layer gallery slag turning structure comprises the following steps: when the dam side slope engineering is excavated below the middle layer gallery, excavating downwards one level from the middle layer gallery according to the side slope excavation form, and constructing a slag turning structure one level; during construction, firstly, dowel bars are arranged under the middle gallery, upright rods are arranged on two sides of the dowel bars until corresponding side slope high layers are excavated, meanwhile, a slag-stopping iron sheet guardrail and a slag-stopping iron sheet protection cage are attached, the slag-stopping iron sheet protection cage is attached to the bottom of the dowel bars until a certain distance is reserved above the bottom of the dowel bars.
The invention has the beneficial effects that: the invention can ensure that the middle layer gallery can normally turn slag under the condition of not repairing the road, does not influence the straight line construction period, has higher safety and solves the defect of poor economic safety of conventional slag discharge. The structure has the advantages of simplicity, safety, economy and easy adjustment.
Drawings
FIG. 1 is an overall three-dimensional effect diagram of the present invention;
FIG. 2 is a three-dimensional effect of a skeleton portion of the present invention.
Reference numerals illustrate: 1-middle layer corridor, 2-slag-blocking iron sheet guardrail, 3-slag-blocking iron sheet cage, 4-vertical rod, 5-dowel bar, 6-buffer rubber, 7-side slope, 8-slag-blocking fence and 9-slag-discharging channel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and 2, the overall structure of the middle layer gallery slag turning structure of the dam according to an embodiment of the present invention may be generally divided into a slag blocking structure and a stress frame, which are mutually supported.
The slag blocking structure comprises a slag blocking iron sheet guardrail 2, a slag blocking iron sheet protective cage 3, a slag blocking rail 8 and a buffer rubber 6. The slag iron fence 2 is arranged at the outlet of the middle layer gallery 1, is in a round collar shape, envelops the edge of the outlet of the whole gallery, is fixed on the corresponding dowel bars 5, and is arranged at the top of the middle layer gallery 1 as far as possible in order to ensure that slag leakage from the edge is avoided when the slag turning machine turns slag at the outlet of the middle layer gallery 1. The slag-stopping iron sheet protection cage 3 is fixedly arranged on the whole dowel bar 5 and is semicircular, and the arrangement range is from the gallery outlet to the bottom slag outlet so as to prevent waste slag from flying everywhere when falling from the air. The slag blocking bar 8 is provided with three sides and is arranged near the bottom of the outlet for fixing the slag discharging range, and one side is reserved as a slag discharging channel 9. One section of the buffer rubber 6 is fixed on the dowel bar 5, the other end is free, and when the weight of the waste slag is accumulated to a certain extent, the buffer rubber 6 can be deformed by pressing, so that the waste slag enters the next layer of buffer rubber, and the energy and danger of high-altitude slag turning are reduced.
The stress framework comprises a dowel bar 5 and a vertical rod 4. The dowel 5 is a semicircular U-shaped structure, two ends of the dowel are anchored into a rock body to a certain depth, the whole dowel 5 is fixed, the dowel is exposed in a half circle outside, the dowel is used for stopping the slag, the iron sheet cage 3 is fixed on the dowel 5, the dowel 5 is distributed from top to bottom in a certain distance, the last dowel 5 is distributed at a certain distance, and the last dowel is used for slag tapping. The vertical rods 4 are arranged on two sides of the dowel bars 5, extend from the corridor outlet to the bottommost part of the slag hole, and are mutually connected with the dowel bars 5 in the middle, so that a relatively uniform whole is formed.
Above-mentioned structure, according to on-the-spot steep topography, arrange with the situation, ingenious reasonable slag tap can be according to side slope 7 from last to lower order pushing off slag iron sheet protects cage 3 can slowly lengthen in proper order, and the pushing off slag fence is simply demolishd, lays again to reach the purpose that eliminates to turn over the sediment, slag tap and side slope 7 excavation down do not influence each other.
When a dam side slope engineering is excavated below the middle layer corridor 1, according to the excavation form of a side slope 7, a first stage is excavated downwards from the middle layer corridor 1, so that a slag turning structure is constructed at one stage, when the construction is carried out, firstly, dowel bars 5 are arranged right below the middle layer corridor 1, upright posts 4 are arranged on two sides until the corresponding excavation side slope 7 is high, meanwhile, a slag-stopping iron sheet guardrail 2 and a slag-stopping iron sheet protection cage 3 are attached, the slag-stopping iron sheet protection cage 3 is attached to a certain distance above the slope bottom, and a slag-stopping fence 8 is attached to the bottom, wherein the slag-stopping fence 8 is in accordance with the characteristics of easy disassembly and assembly and difficult to be fixed on a foundation; when slag is discharged, the slag is poured into the slag-stopping iron sheet guardrail 2 by a slag turning machine, the top of the slag-stopping iron sheet guardrail 2 is wide, and the lower part is narrow, so that all the slag is not scattered, and falls into the slag-stopping iron sheet cage 3 directly, the outside of the slag-stopping iron sheet cage 3 is wrapped by iron sheets, so that the slag is not scattered, the inside of the slag is composed of a plurality of layers of rotatable buffer rubber 6, when the slag is accumulated on each layer of buffer rubber 6 to form a certain weight, the edge of the buffer rubber 6 can be turned over, the slag falls into the next layer of buffer rubber 6, the effect of preventing impact energy reduction is achieved, and the slag is effectively prevented from rolling around until reaching the slope bottom and the slag-stopping column 8 at the slope bottom, and a channel is reserved; when certain waste slag is accumulated at the bottom of the slope, the waste slag can be transported away from the slag discharging channel 9, and even the waste slag can be thrown into the foundation pit directly nearby, so that the slag discharging effect is achieved. When the side slope continues to dig down, can give the skim iron guardrail 2 of bottom earlier and demolish, when the excavation is to the next floor, the length of adjustable skim iron protects cage 3, can protect cage 3 extension with the skim iron guardrail 2 reinstallation, so, can continue the turning over the sediment again, so circulation reaches the effect of continuous, quick turning over the sediment, does not influence the straight line time limit promptly, also does not cross-operation, has accelerated slag speed even, and the security is reliable, has practiced thrift engineering cost greatly.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (2)
1. The utility model provides a middle level corridor turns over sediment structure in dam, includes middle level corridor (1), its characterized in that: a slag blocking structure and a stress framework are arranged at the outlet of the middle gallery (1); the slag blocking structure comprises a slag blocking iron sheet guardrail (2), a slag blocking iron sheet protective cage (3), a slag blocking fence (8) and a buffer rubber (6); the stress framework comprises a dowel bar (5) and a vertical rod (4); the steel dowel (5) is of a semicircular U-shaped structure, two ends of the steel dowel are anchored into rock bodies, a half circle exposed outside fixes the slag-blocking iron sheet protection cage (3) on the steel dowel (5), and the steel dowel (5) is distributed from top to bottom at intervals; the upright rods (4) are arranged on two sides of the dowel bars (5), extend from the outlet of the middle layer gallery (1) to the bottommost part of the slag hole, and are mutually connected with the dowel bars (5) in the middle, so that a unified whole is formed; the slag-stopping iron sheet guardrail (2) is arranged at the outlet of the middle layer gallery (1) and is in a round collar shape, envelops the edge of the outlet of the whole middle layer gallery (1), and is fixed on the corresponding dowel bar (5); the slag-blocking iron sheet protection cage (3) is fixedly arranged on the whole dowel bar (5) and is semicircular, and the arrangement range is from the outlet of the middle gallery (1) to the bottom; the slag blocking bars (8) are arranged on three sides and near the bottom of the outlet of the middle layer gallery (1) to fix the slag discharging range, and one side is reserved as a slag discharging channel (9); one section of the buffer rubber (6) is fixed on the dowel bar (5), and the other end is free.
2. A construction method of a dam middle layer gallery slag turning structure as set forth in claim 1, comprising the steps of: when a dam side slope engineering is excavated below the middle layer gallery, according to the form of side slope excavation, excavating downwards one stage from the middle layer gallery (1), and constructing a slag turning structure one stage; during construction, firstly, dowel bars (5) are arranged under the middle gallery (1), upright rods (4) are arranged on two sides until corresponding excavation is carried out on a slope high layer, a slag-stopping iron sheet guardrail (2) and a slag-stopping iron sheet protection cage (3) are attached at the same time, the slag-stopping iron sheet protection cage (3) is attached at the bottom until the distance above the slope bottom, and a slag-stopping fence (8) is attached at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350113.7A CN110306497B (en) | 2019-04-28 | 2019-04-28 | Dam middle layer gallery slag turning structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350113.7A CN110306497B (en) | 2019-04-28 | 2019-04-28 | Dam middle layer gallery slag turning structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110306497A CN110306497A (en) | 2019-10-08 |
| CN110306497B true CN110306497B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910350113.7A Active CN110306497B (en) | 2019-04-28 | 2019-04-28 | Dam middle layer gallery slag turning structure and construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132248A (en) * | 1996-10-29 | 1998-05-22 | Mitsubishi Heavy Ind Ltd | Incinerating ash melting furnace |
| CN107218045A (en) * | 2017-07-03 | 2017-09-29 | 中车建设工程有限公司 | The rapid constructing method of rocky stratum tunneling subway station gateway tunneling section |
| CN107642359A (en) * | 2017-09-26 | 2018-01-30 | 中铁隧道集团二处有限公司 | The attached wind booth vertical shaft section in subway station excavates slag tap structure and construction method |
| CN108842781A (en) * | 2018-08-06 | 2018-11-20 | 中国电建集团华东勘测设计研究院有限公司 | A kind of Excavation of High And Steep Slopes tap cinder construction method |
| CN210368862U (en) * | 2019-04-28 | 2020-04-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Dam middle level corridor turns over sediment structure |
-
2019
- 2019-04-28 CN CN201910350113.7A patent/CN110306497B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132248A (en) * | 1996-10-29 | 1998-05-22 | Mitsubishi Heavy Ind Ltd | Incinerating ash melting furnace |
| CN107218045A (en) * | 2017-07-03 | 2017-09-29 | 中车建设工程有限公司 | The rapid constructing method of rocky stratum tunneling subway station gateway tunneling section |
| CN107642359A (en) * | 2017-09-26 | 2018-01-30 | 中铁隧道集团二处有限公司 | The attached wind booth vertical shaft section in subway station excavates slag tap structure and construction method |
| CN108842781A (en) * | 2018-08-06 | 2018-11-20 | 中国电建集团华东勘测设计研究院有限公司 | A kind of Excavation of High And Steep Slopes tap cinder construction method |
| CN210368862U (en) * | 2019-04-28 | 2020-04-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Dam middle level corridor turns over sediment structure |
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| Publication number | Publication date |
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| CN110306497A (en) | 2019-10-08 |
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