CN210049205U - Arch dam - Google Patents
Arch dam Download PDFInfo
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- CN210049205U CN210049205U CN201920688216.XU CN201920688216U CN210049205U CN 210049205 U CN210049205 U CN 210049205U CN 201920688216 U CN201920688216 U CN 201920688216U CN 210049205 U CN210049205 U CN 210049205U
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Abstract
The utility model provides an arch dam. The arch dam comprises a dam top elevation and a dam pouring foundation elevation, a plurality of transverse seams and a plurality of induction seams which are the same as the transverse seams in extension direction are distributed on the arch dam, a boundary is arranged between the transverse seams, the height of the boundary is higher than the height of the upstream water level in the flood season, the transverse seams extend from the dam top elevation to the boundary, and the induction seams extend from the boundary to the dam pouring foundation elevation. Compared with the prior art, the arch dam provided by the utility model meets the demand of flood fighting and water retaining of the temporary section of the dam body in the construction period; the induced joints can release dam stress, the safety and stability of the dam in the flood season are guaranteed, the dam can be opened at a preset position to form joints, the opening effect of the joints is guaranteed, and later arch sealing and grouting are facilitated.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering technique and specifically relates to an arch dam is related to.
Background
In the design, construction and operation of the high arch dam of the hydraulic and hydroelectric engineering, a transverse seam or an induction seam is often arranged for meeting the requirements of dam structure arrangement and temperature control anti-cracking.
The structure of the induction seam is formed by discontinuous seams and middle concrete, the opening position is not necessarily generated on the induction seam in consideration of the non-uniformity of the concrete, irregular cracks can be generated, and the opening effect is not as good as that of the transverse seams. The transverse joints are composed of continuous joints, and under the action of temperature stress generated by later cooling, the opening effect and grouting effect of the joints are superior to those of induced joints. The whole seam adopts a structural form, namely the whole seam adopts an induced seam or the whole seam adopts a transverse seam.
In construction flood season, the dam often has the requirement of flood fighting and water retaining. If the whole dam body adopts a transverse seam, the grouting elevation is limited at the moment and cannot reach the water retaining elevation due to the influence of the age of concrete and the temperature of the dam body. If the whole body adopts the induction seams, most of the induction seams are not communicated from the perspective of the construction flood fighting water retaining requirement, so that the induction seams have a good arch effect and can meet the water retaining stress requirement; however, after the pouring is finished, the dam section higher in the dam body is not favorable for opening into a seam at a preset position for later arch sealing grouting.
Therefore, there is a need to provide a new arch dam to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an arch dam with horizontal seam and induced seam combination.
The technical scheme of the utility model is that: the arch dam comprises a dam top elevation and a dam pouring foundation elevation, wherein a plurality of transverse seams and a plurality of induction seams which are the same as the transverse seams in the extending direction are distributed on the arch dam, a boundary is arranged between each transverse seam and each induction seam, the height of the boundary is higher than the height of the upstream water level in the flood season, each transverse seam extends from the dam top elevation to the boundary, and each induction seam extends from the boundary to the dam pouring foundation elevation.
The arch dam adopts the combination of the transverse joint and the induced joint, and effectively solves the problems that the flood fighting and water retaining can be realized in the construction period, the opening joint can be formed at the expected position, the opening effect of the joint is ensured, and the requirement of arch sealing and grouting is convenient to carry out through the change of the joint dividing form.
Preferably, the interval of the induction seams is larger than that of the transverse seams.
Preferably, the dam body borders the foundation through the dam base line.
Compared with the prior art, the beneficial effects of the utility model are that:
firstly, the requirements of flood fighting and water retaining of the temporary section of the dam body in the construction period are met; the induced joints can release dam stress, so that the safety and stability of the dam in the flood season are guaranteed;
secondly, the joint can be opened at a preset position to form a seam, so that the opening effect of the seam is ensured, and the later arch sealing grouting is facilitated;
third, the setting of induced seam and horizontal seam is conventional technique in the arch dam design construction, does not increase extra process, has satisfied the requirement of quick construction, and this technical scheme has solved current technical problem with both effectually combining.
Drawings
Fig. 1 is the structural schematic diagram of the arch dam provided by the present invention.
In the attached drawing, 1-induced seam, 2-transverse seam, 3-boundary, 4-dam base line and 5-dam top elevation.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the directions of the drawings, and do not limit the structure of the drawings.
As shown in fig. 1, the utility model provides an arch dam includes dam crest and dam foundation pouring, arrange on the arch dam many transverse joints 2 and with many the same many induced joints 1 of 2 extending directions of transverse joint, transverse joint 2 highly is higher than the height of flood season upper reaches water level with the boundary department 3 of induced joint, transverse joint 2 is located between boundary department 3 and dam crest elevation 5, induced joint 1 is located between boundary department 3 and the dam foundation pouring elevation. The transverse seam 2 extends from the dam crest elevation to the boundary 3, and the induced seam 1 extends from the boundary 3 to the dam pouring foundation elevation.
The utility model provides a construction method of arch dam does:
1. according to the upstream water level in the flood season, considering the wave climbing height and the safety superelevation, the division elevation of the induction seam 1 and the transverse seam 2 is selected.
2. And setting an induction seam 1 from the dam pouring foundation elevation to a boundary 3 of the induction seam and the transverse seam.
3. And arranging a transverse seam 2 from the boundary 3 to the dam top elevation 5.
4. The dam sections of two banks above the boundary position 3 can be directly provided with transverse seams 2 in the whole seam due to no water retaining requirement.
5. Under the condition of a wider riverbed terrain, considering that the riverbed dam section is less constrained by the peripheral foundation, the induced seam spacing can be properly increased.
6. The dam body is connected with the foundation through the dam base line 4.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (3)
1. The arch dam comprises a dam top elevation and a dam pouring foundation elevation and is characterized in that a plurality of transverse seams and a plurality of induction seams which are the same as the transverse seams in extension direction are distributed on the arch dam, a boundary is arranged between each transverse seam and each induction seam, the height of the boundary is higher than the height of the upstream water level in the flood season, each transverse seam extends from the dam top elevation to the boundary, and each induction seam extends from the boundary to the dam pouring foundation elevation.
2. The arch dam of claim 1, wherein the spacing of the induction seams is greater than the spacing of the transverse seams.
3. An arch dam as defined in claim 1, wherein the dam is bordered by a base dam line to the foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920688216.XU CN210049205U (en) | 2019-05-15 | 2019-05-15 | Arch dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920688216.XU CN210049205U (en) | 2019-05-15 | 2019-05-15 | Arch dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210049205U true CN210049205U (en) | 2020-02-11 |
Family
ID=69395528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920688216.XU Active CN210049205U (en) | 2019-05-15 | 2019-05-15 | Arch dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210049205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114239113A (en) * | 2021-12-21 | 2022-03-25 | 黄河勘测规划设计研究院有限公司 | Abrupt slope dam section arch dam transverse joint design method |
-
2019
- 2019-05-15 CN CN201920688216.XU patent/CN210049205U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114239113A (en) * | 2021-12-21 | 2022-03-25 | 黄河勘测规划设计研究院有限公司 | Abrupt slope dam section arch dam transverse joint design method |
| CN114239113B (en) * | 2021-12-21 | 2024-03-29 | 黄河勘测规划设计研究院有限公司 | Method for designing transverse seam of steep slope dam segment arch dam |
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