CN102296568A - Method and structure for forming seam on arch dam by adopting corrugated plate - Google Patents
Method and structure for forming seam on arch dam by adopting corrugated plate Download PDFInfo
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- CN102296568A CN102296568A CN2010102097817A CN201010209781A CN102296568A CN 102296568 A CN102296568 A CN 102296568A CN 2010102097817 A CN2010102097817 A CN 2010102097817A CN 201010209781 A CN201010209781 A CN 201010209781A CN 102296568 A CN102296568 A CN 102296568A
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Abstract
The invention discloses a method and structure for forming a seam on an arch dam by adopting a corrugated plate, when the arch dam is formed by rolling compaction of concrete, a corrugated plate which is parallel to the end surface of an arch is placed on a dam body at the arch end of the arch dam, facing the upstream direction, so as to enhance the radial anti-shear ability of the arch end. The corrugated seam forming structure is adopted, the seam can be formed by pouring once, and joint grouting does not need to be performed, thereby not only transferring arch pressure stress, but also enhancing the radial anti-shear ability and further eliminating the shortcomings of complex process and long period of key slot construction. Especially for the arch dam is formed by rolling compaction of concrete, the method and the structure particularly have the characteristic of fast construction and more prominent advantages.
Description
Technical field
The present invention relates to a kind of corrugated sheet that on arch dam, adopts and become the method and the structure of seam, belong to dam building structure technology field.
Background technology
Arch dam is the check dam of a kind of building in the valley, makes horizontal arch, and chimb is towards the upstream, and the valley wall is close at two ends.By all or part of basement rock of passing to river valley two sides of the effect of encircleing with water pressure.The junction of arch dam two ends and valley wall is called arch abutment, and in general the arch abutment upstream face is the tensile region, in order to discharge the tensile stress of arch abutment, the short seam of periphery is set near the arch abutment of being everlasting.And arch abutment is a key position of behind the arch dam dash force transmission being given Rock mass of dam abutment, and arch abutment also need be resisted radial shear power except transmitting arch to compressive stress.And the setting of the short seam of periphery has weakened the radially resistance of arch abutment.In order to overcome the problem that radially resistance that the short seam of periphery causes descends, at present usually need be in the short seam of periphery can retaining after the grouting; The measure of perhaps taking to thicken arch abutment improves the radially anti-shear ability of arch abutment; The method that perhaps adopts the reservation keyway separately to build improves the radially anti-shear ability of arch abutment.Adopt said method working procedure complexity, long in time limit.
Summary of the invention
The objective of the invention is to, but provide a kind of one-time-concreting to become seam, need not carry out joint grouting and not only can transmit arch to compressive stress, but also can strengthen radially that the corrugated sheet that adopts of anti-shear ability becomes the method and the structure of seam on arch dam, thereby overcome the deficiencies in the prior art.
Technical scheme of the present invention: on arch dam, adopt corrugated sheet to become the method for seam, this method is when rolling arch dam with concrete, dam body at the arch dam arch abutment is put the horizontally disposed corrugated sheet of the one deck that is parallel to the arch abutment face together in face of updrift side, to improve the radially anti-shear ability of arch abutment.The limit that meets water of corrugated sheet is provided with the sealing sheet, and the backwater limit of corrugated sheet is provided with only stitches plate.
The aforementioned corrugated sheet that adopts on arch dam becomes in the method for seam the through hole that it is 5～20 cm that described corrugated sheet is provided with one group of aperture.
The aforementioned employing on arch dam in the method that corrugated sheet becomes seam, described corrugated sheet are adopted can power transmission, can make by the corrosion-resistant material again.
Aforementioned on arch dam, the employing in the method that corrugated sheet becomes seam, described can power transmission, can the corrosion-resistant material be corrosion resistant plate or galvanized iron sheet again.
The aforementioned corrugated sheet that adopts on arch dam becomes in the method for seam, and described corrugated sheet thickness of slab is 1～5mm; The wavelength of corrugated sheet is 50～100cm; The wave amplitude of corrugated sheet is 10～20cm.
The aforementioned corrugated sheet that adopts on arch dam becomes in the method for seam, on the limit that meets water of described corrugated sheet the sealing sheet is set, and prevents that the water of upstream from immersing along corrugated sheet; The sealing sheet is made with copper sheet or corrosion resistant plate.
The aforementioned corrugated sheet that adopts on arch dam becomes in the method for seam, is provided with on the backwater limit of described corrugated sheet and only stitches plate, prevents that concrete is radially at the place, backwater limit of corrugated sheet cracking; Only stitching plate makes with shaped steel.
The aforementioned employing on arch dam in the method that corrugated sheet becomes seam, the non-seam section in described concrete dam body after only stitching plate is provided with one group of vertically disposed joint bar.
Become the used structure of method of seam according to the aforesaid corrugated sheet that on arch dam, adopts, comprise the corrugated sheet that is located in the arch abutment dam body, the limit that meets water at corrugated sheet is provided with the sealing sheet, be provided with on the backwater limit of corrugated sheet and only stitch plate, the non-seam section that only stitches in the concrete dam body behind the plate radially is provided with one group of vertically disposed joint bar.
In the aforesaid structure, the thickness of slab of described corrugated sheet is 1～5mm; The wavelength of corrugated sheet is 50～100cm; The wave amplitude of corrugated sheet is 10～20cm.
Owing to adopted technique scheme, the present invention compared with prior art, the present invention adopts " ripple type becomes the seam facility " but one-time-concreting becomes seam, need not carry out joint grouting, both can transmit arch to compressive stress, can strengthen radially anti-shear ability again, keyway working procedure complexity, drawback long in time limit must be set in the prior art but also saved.The present invention is especially to the rapid construction characteristics that rolled concrete arch dam had, and its superiority is more outstanding.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Being labeled as in the accompanying drawing: the 1-corrugated sheet, 2-sealing sheet, 3-only stitches plate, the 4-joint bar.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but not as the foundation that the present invention is carried out any restriction.
Embodiments of the invention: as shown in Figure 1, when adopting the method that on arch dam, adopts corrugated sheet to become to stitch of the present invention to construct, when rolling arch dam with concrete, dam body at the arch dam arch abutment is put the corrugated sheet that is parallel to the arch abutment face together in face of updrift side, to improve the radially anti-shear ability of arch abutment; The limit that meets water of corrugated sheet is provided with the sealing sheet, and the backwater limit of corrugated sheet is provided with only stitches plate; The through hole that it is 5～20 cm that corrugated sheet is provided with one group of aperture; Corrugated sheet adopts can power transmission, can make by the corrosion-resistant material again; Described can power transmission, can the corrosion-resistant material be corrosion resistant plate or galvanized iron sheet again; Described corrugated sheet thickness of slab is 1～5mm; The wavelength of corrugated sheet is 50～100cm; The wave amplitude of corrugated sheet is 10～20cm.The limit that meets water at described corrugated sheet is provided with the sealing sheet, prevents that the water of upstream from immersing along corrugated sheet; The sealing sheet is made with copper sheet or corrosion resistant plate.Be provided with on the backwater limit of described corrugated sheet and only stitch plate, prevent that radially concrete is at the place, backwater limit of corrugated sheet cracking; Only stitching plate makes with shaped steel; Non-seam section in described concrete dam body after only stitching plate is provided with one group of vertically disposed joint bar.
A kind of corrugated sheet that adopts on arch dam that is used for the inventive method becomes the structure of seam to comprise the corrugated sheet 1 that is located in the arch abutment dam body, during making, sealing sheet 2 is produced on the limit that meets water at corrugated sheet 1, produce on the backwater limit of corrugated sheet 1 and only to stitch plate 3, non-seam section in the concrete dam body after only stitching plate 3 is provided with one group of vertically disposed joint bar 4, the quantity of joint bar 4 can determine that in the usual way the thickness of slab of corrugated sheet 1 is 1～5mm according to the size of dam body; The wavelength of corrugated sheet is 50～100cm; The wave amplitude of corrugated sheet is 10～20cm.
The present invention carries out synchronously with damming works in the specific implementation, when building a dam, the place of the short seam of periphery should be set near the massif rock junction of the arch face on dam and arch abutment, lays corrugated sheet, substitutes with one corrugated sheet that original periphery is short to be stitched.After laying corrugated sheet, also carry out together with the meet water sealing sheet on limit and the plate that only stitches on corrugated sheet backwater limit of corrugated sheet, the effect of sealing sheet is that anti-sealing is along corrugated sheet and the infiltration of concrete junction.The effect of only stitching plate is to prevent that the concrete seam that pressure radially forms from the corrugated sheet end from tearing.Be provided with many vertically disposed joint bars at corrugated sheet backwater non-seam section on one side, to improve water-retaining capacity.When concreting, together with corrugated sheet, sealing sheet, only stitch plate and joint bar one-time-concreting in dam body.
Claims (10)
1. one kind is adopted corrugated sheet to become the method for seam on arch dam, it is characterized in that: this method is when rolling arch dam with concrete, dam body at the arch dam arch abutment is put the corrugated sheet that is parallel to the arch abutment face together in face of updrift side, to strengthen the radially anti-shear ability of arch abutment.
2. become the method for seam according to the described corrugated sheet that on arch dam, adopts of claim 1, it is characterized in that: the through hole that it is 5～20 cm that described corrugated sheet is provided with one group of aperture.
3. according to the described method that adopts corrugated sheet to become seam on arch dam of claim 2, it is characterized in that: described corrugated sheet adopts can power transmission, can make by the corrosion-resistant material again.
4. according to the described method that on arch dam, adopts corrugated sheet to become seam of claim 3, it is characterized in that: described can power transmission, can the corrosion-resistant material be corrosion resistant plate or galvanized iron sheet again.
5. become the method for seam according to the described corrugated sheet that adopts of claim 1 on arch dam, it is characterized in that: described corrugated sheet thickness of slab is 1～5mm; The wavelength of corrugated sheet is 50～100cm; The wave amplitude of corrugated sheet is 10～20cm.
6. become the method for seam according to the described corrugated sheet that adopts of claim 1 on arch dam, it is characterized in that: the limit that meets water at described corrugated sheet is provided with the sealing sheet, prevents that the water of upstream from immersing along corrugated sheet; The sealing sheet is made with copper sheet or corrosion resistant plate.
7. become the method for seam according to the described corrugated sheet that on arch dam, adopts of claim 1, it is characterized in that: be provided with on the backwater limit of described corrugated sheet and only stitch plate, prevent that concrete is along place, the backwater limit cracking that is sewn on corrugated sheet; Only stitching plate makes with shaped steel.
8. according to the described method that on arch dam, adopts corrugated sheet to become seam of claim 1, it is characterized in that: described only stitch plate after non-seam section in radially the concrete dam body be provided with one group of vertically disposed joint bar.
9. one kind is adopted corrugated sheet to become the structure of seam on arch dam, it is characterized in that: comprise the corrugated sheet (1) that is arranged in the arch abutment dam body, be provided with sealing sheet (2) on the limit that meets water of corrugated sheet (1), be provided with on the backwater limit of corrugated sheet (1) and only stitch plate (3), the non-seam section in the concrete dam body after only stitching plate (3) is provided with one group of vertically disposed joint bar (4).
10. the corrugated sheet that adopts on arch dam according to claim 9 becomes the structure of seam, and it is characterized in that: the thickness of slab of described corrugated sheet (1) is 1～5mm; The wavelength of corrugated sheet is 50～100cm; The wave amplitude of corrugated sheet is 10～20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102097817A CN102296568A (en) | 2010-06-25 | 2010-06-25 | Method and structure for forming seam on arch dam by adopting corrugated plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102097817A CN102296568A (en) | 2010-06-25 | 2010-06-25 | Method and structure for forming seam on arch dam by adopting corrugated plate |
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| Publication Number | Publication Date |
|---|---|
| CN102296568A true CN102296568A (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102097817A Pending CN102296568A (en) | 2010-06-25 | 2010-06-25 | Method and structure for forming seam on arch dam by adopting corrugated plate |
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| CN (1) | CN102296568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464047A (en) * | 2015-12-17 | 2016-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for quickly forming short joints on periphery of roller compacted concrete arch dam |
| CN117552430A (en) * | 2024-01-11 | 2024-02-13 | 中国电建集团西北勘测设计研究院有限公司 | Non-radial excavation method for dam abutment of arch dam |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2387142Y (en) * | 1999-09-30 | 2000-07-12 | 南京晨光东螺波纹管有限公司 | Stainless steel corrugated sealing up sheet for concrete slab dam |
| US6413014B1 (en) * | 1997-05-12 | 2002-07-02 | Sigurd Melin | Damming device for erecting a liquid-damming protective bank |
| CN201411661Y (en) * | 2009-05-21 | 2010-02-24 | 王大卫 | Novel peripheral joint surface water stopping structure |
| CN201695382U (en) * | 2010-06-25 | 2011-01-05 | 中国水电顾问集团贵阳勘测设计研究院 | Structure for forming joint on arch dam by using corrugated plate |
-
2010
- 2010-06-25 CN CN2010102097817A patent/CN102296568A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6413014B1 (en) * | 1997-05-12 | 2002-07-02 | Sigurd Melin | Damming device for erecting a liquid-damming protective bank |
| CN2387142Y (en) * | 1999-09-30 | 2000-07-12 | 南京晨光东螺波纹管有限公司 | Stainless steel corrugated sealing up sheet for concrete slab dam |
| CN201411661Y (en) * | 2009-05-21 | 2010-02-24 | 王大卫 | Novel peripheral joint surface water stopping structure |
| CN201695382U (en) * | 2010-06-25 | 2011-01-05 | 中国水电顾问集团贵阳勘测设计研究院 | Structure for forming joint on arch dam by using corrugated plate |
Non-Patent Citations (1)
| Title |
|---|
| 陈宏: "大花水水电站碾压混凝土坝设计", 《水力发电》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464047A (en) * | 2015-12-17 | 2016-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for quickly forming short joints on periphery of roller compacted concrete arch dam |
| CN117552430A (en) * | 2024-01-11 | 2024-02-13 | 中国电建集团西北勘测设计研究院有限公司 | Non-radial excavation method for dam abutment of arch dam |
| CN117552430B (en) * | 2024-01-11 | 2024-04-12 | 中国电建集团西北勘测设计研究院有限公司 | Non-radial excavation method for dam abutment of arch dam |
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Application publication date: 20111228 |