CN111395270A - Horizontal grout stop sheet reinforcement construction method for transverse joint grouting area of arch dam - Google Patents
Horizontal grout stop sheet reinforcement construction method for transverse joint grouting area of arch dam Download PDFInfo
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- CN111395270A CN111395270A CN202010218445.2A CN202010218445A CN111395270A CN 111395270 A CN111395270 A CN 111395270A CN 202010218445 A CN202010218445 A CN 202010218445A CN 111395270 A CN111395270 A CN 111395270A
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- 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
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/12—Arch dams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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Abstract
The invention discloses a horizontal grout stop sheet reinforcement construction method for an arch dam transverse joint grouting area. According to the invention, the grout stopping sheet erection platform is formed by the vertical supporting steel bars, the transverse steel bars and the supporting steel bars, and different reinforcing steel bars and reinforcing clamps are matched, so that a high-strength reinforcing structure is formed, the horizontal grout stopping sheet in the grouting area of the transverse joint of the arch dam is effectively ensured to be accurately installed and firmly reinforced, and the grouting quality is ensured.
Description
Technical Field
The invention belongs to the technical field of hydropower station construction, and particularly relates to a horizontal grout stop sheet reinforcement construction method for an arch dam transverse joint grouting area.
Background
The engineering dam of the hydropower station of the white beach adopts an elliptical concrete hyperbolic arch dam, the dam crest elevation is 834.0m, the maximum dam height is 289.0m, the arch crown dam crest thickness is 14.0m, the arch crown dam bottom thickness is 63.5m, the dam body is provided with transverse seams without longitudinal seams, the dam section is divided into 31 dam sections in total, and the transverse seams are provided with seams for grouting.
The joint grouting belongs to concealed engineering, and the arch dam transverse joint grouting has great significance and higher requirement. The grouting system comprises a grouting pipeline, a horizontal grout stopping sheet, upstream and downstream water stopping and the like, and is pre-buried in dam body concrete, the time from the pre-burying of the grouting system to the implementation of joint grouting is long, the grouting system is easily influenced by construction of other working procedures of a dam body, such as vibration, large aggregate accumulation and the like during concrete pouring, the recovery workload is large after the grouting system is damaged, and the grouting system in a grouting area can be caused to lose efficacy in serious conditions, so that the whole engineering construction is influenced. The quality of the grouting area is one of the important conditions for ensuring the grouting quality, and the horizontal grout stop sheet must be reinforced to ensure the grouting area quality. Therefore, it is necessary to develop a horizontal grout stop sheet reinforcing construction method for the transverse joint grouting area of the arch dam, which facilitates accurate installation and is firm in reinforcement.
Disclosure of Invention
The invention aims to provide a construction method for reinforcing a horizontal grout stop sheet in a transverse joint grouting area of an arch dam.
The object of the invention is achieved by the following steps:
s1, determining the installation position of the horizontal grout stopping sheet through measuring the release point;
s2, respectively drilling a row of holes with equal intervals along the length direction of the transverse joint and at different distances from the transverse joint on the side of the first pouring block, wherein the hole far away from the transverse joint is a first hole, and the hole close to the transverse joint is a second hole, then installing the lower end of the first vertical supporting steel bar in the first hole, and installing the lower end of the second vertical supporting steel bar in the second hole; the upper parts of the first vertical supporting steel bar and the second vertical supporting steel bar are connected through spot welding of transverse steel bars; two bearing reinforcing steel bars are arranged on the upper portions of the first vertical supporting reinforcing steel bar and the second vertical supporting reinforcing steel bar along the transverse seam direction to form a grout stop sheet erecting platform, and the bearing reinforcing steel bars are positioned on the transverse reinforcing steel bars; placing one side of a horizontal grout stopping sheet on a grout stopping sheet erecting platform, and arranging two first reinforcing steel bars along the horizontal grout stopping sheet along the length direction of the horizontal grout stopping sheet, wherein the first reinforcing steel bars correspond to the supporting steel bars one by one; the other side of the horizontal grout stopping sheet is attached to the surface of the template, and a second reinforcing steel bar is arranged on the outer side of the upper part of the horizontal grout stopping sheet along the length direction of the horizontal grout stopping sheet; then, a first U-shaped reinforcing card is clamped into the supporting steel bar, the first reinforcing steel bar, the grout stopping sheet erection platform and the horizontal grout stopping sheet above the grout stopping sheet erection platform from the upper end of the first vertical supporting steel bar 1, the upper extension foot of the first U-shaped reinforcing card presses the part of the horizontal grout stopping sheet attached to the surface of the template and the second reinforcing steel bar, and the lower extension foot of the first U-shaped reinforcing card faces downwards; binding and connecting the head part of the first U-shaped reinforcing clamp with the upper part of the first vertical supporting steel bar, and binding and connecting the bearing steel bar, the first reinforcing steel bar and the second reinforcing steel bar with the corresponding parts of the first U-shaped reinforcing clamp respectively; installing a second U-shaped reinforcing card between two adjacent first U-shaped reinforcing cards, clamping the second U-shaped reinforcing card into the supporting steel bars, the first reinforcing steel bars, the grout stopping sheet erection platform and the horizontal grout stopping sheet above the grout stopping sheet erection platform, and pressing the part of the horizontal grout stopping sheet attached to the template surface and the second reinforcing steel bars by the extension feet of the second U-shaped reinforcing card; binding and connecting the bearing reinforcing steel bar, the first reinforcing steel bar and the second reinforcing steel bar with the corresponding parts of the second U-shaped reinforcing clamp respectively;
s3, when the post-pouring block is prepared, taking out the horizontal grout stopping sheet from the pre-pouring block and cleaning; two third reinforcing steel bars are arranged under the horizontal grout stopping sheet along the length direction of the horizontal grout stopping sheet, two fourth reinforcing steel bars are arranged on the horizontal grout stopping sheet, and the third reinforcing steel bars correspond to the fourth reinforcing steel bars one by one; clamping a third U-shaped reinforcing clamp into a third reinforcing steel bar, a fourth reinforcing steel bar and a horizontal grout stopping sheet; the third U-shaped reinforcing cards are installed in a plurality of pairs, and in the two adjacent third U-shaped reinforcing cards, the extension leg of one third U-shaped reinforcing card is vertically upward, and the extension leg of the other third U-shaped reinforcing card is vertically downward.
The invention has the beneficial effects that: according to the invention, the grout stopping sheet erection platform is formed by the vertical supporting steel bars, the transverse steel bars and the supporting steel bars, and different reinforcing steel bars and reinforcing clamps are matched, so that a high-strength reinforcing structure is formed, the horizontal grout stopping sheet in the grouting area of the transverse joint of the arch dam is effectively ensured to be accurately installed and firmly reinforced, and the grouting quality is ensured.
Drawings
FIG. 1 is a schematic view of a pre-cast block structure according to the present invention;
FIG. 2 is a schematic view of a post-cast block structure according to the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line B-B in FIG. 1;
FIG. 5 is a schematic cross-sectional view taken at C-C in FIG. 2;
FIG. 6 is a schematic cross-sectional view taken along line D-D in FIG. 2;
FIG. 7 is a schematic structural view of a first U-shaped reinforcing card;
FIG. 8 is a schematic structural view of a second U-shaped reinforcing card;
in the figure: 1-first vertical supporting steel bars, 2-second vertical supporting steel bars, 3-supporting steel bars, 4-horizontal grout stop sheets, 5-first reinforcing steel bars, 6-second reinforcing steel bars, 7-first U-shaped reinforcing clamps, 8-second U-shaped reinforcing clamps, 9-third reinforcing steel bars, 10-fourth reinforcing steel bars, 11-third U-shaped reinforcing clamps, 12-upstream dam surfaces of arch dams, 13-composite copper water stops, 14-composite rubber water stops, 15-key grooves, 16-downstream dam surfaces of arch dams, 17-inclined struts, 18-pouring layering lines and 19-transverse steel bars.
Detailed Description
The invention is further described with reference to the accompanying drawings, but the invention is not limited in any way, and any alterations or substitutions based on the teaching of the invention are within the scope of the invention.
As shown in the attached drawings 1-8, the invention comprises the following steps:
s1, determining the installation position of the horizontal grout stopping sheet 4 through measuring the release point;
s2, respectively drilling a row of holes with equal intervals along the length direction of the transverse joint and at different distances from the transverse joint on the side of the first casting block, wherein the hole far away from the transverse joint is a first hole, and the hole close to the transverse joint is a second hole, then installing the lower end of the first vertical supporting steel bar 1 in the first hole, and installing the lower end of the second vertical supporting steel bar 2 in the second hole; the upper parts of the first vertical supporting steel bar 1 and the second vertical supporting steel bar 2 are connected through a transverse steel bar 19 in a spot welding mode; two bearing reinforcing steel bars 3 are arranged on the upper parts of the first vertical supporting reinforcing steel bar 1 and the second vertical supporting reinforcing steel bar 2 along the transverse seam direction to form a grout stop sheet erecting platform, and the bearing reinforcing steel bars 3 are positioned on the transverse reinforcing steel bars 19; one side of a horizontal grout stopping sheet 4 is placed on a grout stopping sheet erection platform, two first reinforcing steel bars 5 are distributed on the horizontal grout stopping sheet 4 along the length direction of the horizontal grout stopping sheet 4, and the first reinforcing steel bars 5 correspond to the supporting steel bars 3 one by one; the other side of the horizontal grout stopping sheet 4 is attached to the surface of the template, and a second reinforcing steel bar 6 is arranged on the outer side of the upper part of the horizontal grout stopping sheet 4 along the length direction of the horizontal grout stopping sheet 4; then, a first U-shaped reinforcing clamp 7 is clamped into the bearing steel bar 3, the first reinforcing steel bar 5, the grout stopping sheet erection platform and the horizontal grout stopping sheet 4 above the grout stopping sheet erection platform from the upper end of the first vertical supporting steel bar 1, the upper extension foot of the first U-shaped reinforcing clamp 7 presses the part of the horizontal grout stopping sheet 4 attached to the surface of the template and the second reinforcing steel bar 6, and the lower extension foot of the first U-shaped reinforcing clamp 7 faces downwards; binding and connecting the head part of a first U-shaped reinforcing clamp 7 with the upper part of a first vertical supporting steel bar 1, and binding and connecting a bearing steel bar 3, a first reinforcing steel bar 5 and a second reinforcing steel bar 6 with parts corresponding to the first U-shaped reinforcing clamp 7 respectively; a second U-shaped reinforcing clamp 8 is arranged between two adjacent first U-shaped reinforcing clamps 7, the second U-shaped reinforcing clamp 8 is clamped into the supporting steel bar 3, the first reinforcing steel bar 5, the grout stopping sheet erection platform and the horizontal grout stopping sheet 4 above the grout stopping sheet erection platform, and the extension foot of the second U-shaped reinforcing clamp 8 presses the part of the horizontal grout stopping sheet 4 attached to the surface of the template and the second reinforcing steel bar 6; binding and connecting the bearing steel bar 3, the first reinforcing steel bar 5 and the second reinforcing steel bar 6 with the corresponding parts of the second U-shaped reinforcing clamp 8 respectively;
s3, when the post-pouring block is prepared, taking the horizontal grout stopping sheet 4 out of the pre-pouring block and cleaning; two third reinforcing steel bars 9 are arranged below the horizontal grout stopping sheet 4 along the length direction of the horizontal grout stopping sheet 4, two fourth reinforcing steel bars 10 are arranged on the horizontal grout stopping sheet 4, and the third reinforcing steel bars 9 correspond to the fourth reinforcing steel bars 10 one by one; the third U-shaped reinforcing clamp 11 is clamped into the third reinforcing steel bar 9, the fourth reinforcing steel bar 10 and the horizontal grout stop sheet 4; the plurality of third U-shaped reinforcing clips 11 are installed, and among two adjacent third U-shaped reinforcing clips 11, an extension leg of one third U-shaped reinforcing clip 11 is vertically upward, and an extension leg of the other third U-shaped reinforcing clip 11 is vertically downward.
Preferably, the first U-shaped reinforcing clip 7 is a U-shaped structure made of round steel with a diameter of 12cm, and two openings of the U-shaped structure extend in opposite directions to form an upper extending leg and a lower extending leg perpendicular to the U-shaped structure.
Preferably, the second U-shaped reinforcing clip 8 and the third U-shaped reinforcing clip 11 have the same structure, and are both made of wire rods with the diameter of 6.5cm, and one opening of the U-shaped structure extends outwards to form an extension leg perpendicular to the U-shaped structure.
Preferably, the first hole is 30cm away from the transverse seam, the second hole is 10cm away from the transverse seam, and the diameters of the first hole and the second hole are both 12 cm.
Preferably, the distance between two adjacent first U-shaped reinforcing cards 7 is 150cm, and two second U-shaped reinforcing cards 8 are installed between two adjacent first U-shaped reinforcing cards 7, and the distance is 50 cm.
Preferably, the distance between two adjacent third U-shaped reinforcing cards 11 is 50 cm.
Preferably, the horizontal grout stop 4 is a rubber grout stop.
Preferably, the supporting steel bars 3, the first reinforcing steel bars 5, the second reinforcing steel bars 6, the third reinforcing steel bars 9 and the fourth reinforcing steel bars 10 are all deformed steel bars with the diameter of 12 cm.
Preferably, the height of the transverse joint grouting area is 9-12 m.
Preferably, the first U-shaped reinforcing clip 7 is provided with an inclined strut 17 at the bottom.
The invention is further illustrated below with reference to example 1.
Example 1
1# to 18# transverse joint grouting of left bank dam of white crane beach hydropower station is divided into 31 grouting areas, 393 grouting layers are arranged in total, and the joint grouting area is 185055.89m2The height of the transverse joint grouting area is 9-12 m, and a horizontal grout stop sheet needs to be arranged between the upper and lower grouting areas; the construction method for reinforcing the horizontal grout-stopping sheet in the transverse joint grouting area of the arch dam comprises the following steps:
s1, determining the installation position of the horizontal grout stopping sheet 4 through measuring the release point;
s2, respectively drilling a row of holes with equal intervals along the length direction of the transverse joint at the side of the first casting block and at a distance of 10cm and 30cm from the transverse joint, wherein the diameters of the holes are 12cm, the hole far away from the transverse joint is a first hole, the hole close to the transverse joint is a second hole, then installing the lower end of a first vertical supporting steel bar 1 in the first hole, installing the lower end of a second vertical supporting steel bar 2 in the second hole, and enabling the upper end of the first vertical supporting steel bar 1 to be higher than the installation elevation of a grout stop sheet; the upper parts of the first vertical supporting steel bar 1 and the second vertical supporting steel bar 2 are connected through a transverse steel bar 19 in a spot welding mode; two bearing reinforcing steel bars 3 are arranged on the upper parts of the first vertical supporting reinforcing steel bar 1 and the second vertical supporting reinforcing steel bar 2 along the transverse seam direction to form a grout stop sheet erecting platform, and the bearing reinforcing steel bars 3 are positioned on the transverse reinforcing steel bars 19; one side of a horizontal grout stopping sheet 4 is placed on a grout stopping sheet erection platform, two first reinforcing steel bars 5 are distributed on the horizontal grout stopping sheet 4 along the length direction of the horizontal grout stopping sheet 4, and the first reinforcing steel bars 5 correspond to the supporting steel bars 3 one by one; the other side of the horizontal grout stopping sheet 4 is attached to the surface of the template, and a second reinforcing steel bar 6 is arranged on the outer side of the upper part of the horizontal grout stopping sheet 4 along the length direction of the horizontal grout stopping sheet 4; then, a first U-shaped reinforcing clamp 7 is clamped into the bearing reinforcing steel bar 3, the first reinforcing steel bar 5, the grout stop sheet erection platform and the horizontal grout stop sheet 4 above the grout stop sheet erection platform from the upper end of the first vertical supporting steel bar 1, the upper extension foot of the first U-shaped reinforcing clamp 7 presses the part of the horizontal grout stop sheet 4 attached to the template surface and the second reinforcing steel bar 6, the lower extension foot of the first U-shaped reinforcing clamp 7 faces downwards, and the distance between two adjacent first U-shaped reinforcing clamps 7 is 150 cm; binding and connecting the head part of a first U-shaped reinforcing clamp 7 with the upper part of a first vertical supporting steel bar 1, and binding and connecting a bearing steel bar 3, a first reinforcing steel bar 5 and a second reinforcing steel bar 6 with parts corresponding to the first U-shaped reinforcing clamp 7 respectively; two second U-shaped reinforcing cards 8 are arranged between two adjacent first U-shaped reinforcing cards 7, the distance is 50cm, the second U-shaped reinforcing cards 8 are clamped into the supporting steel bars 3, the first reinforcing steel bars 5, the grout stop sheet erection platform and the horizontal grout stop sheets 4 on the grout stop sheet erection platform, and the extension feet of the second U-shaped reinforcing cards 8 press the parts, attached to the template surface, of the horizontal grout stop sheets 4 and the second reinforcing steel bars 6; binding and connecting the bearing steel bar 3, the first reinforcing steel bar 5 and the second reinforcing steel bar 6 with the corresponding parts of the second U-shaped reinforcing clamp 8 respectively;
s3, when the post-pouring block is prepared, taking the horizontal grout stopping sheet 4 out of the pre-pouring block and cleaning; two third reinforcing steel bars 9 are arranged below the horizontal grout stopping sheet 4 along the length direction of the horizontal grout stopping sheet 4, two fourth reinforcing steel bars 10 are arranged on the horizontal grout stopping sheet 4, and the third reinforcing steel bars 9 correspond to the fourth reinforcing steel bars 10 one by one; the third U-shaped reinforcing clamp 11 is clamped into the third reinforcing steel bar 9, the fourth reinforcing steel bar 10 and the horizontal grout stop sheet 4; the third U-shaped reinforcing cards 11 are installed in a plurality at an interval of 50cm, and in two adjacent third U-shaped reinforcing cards 11, an extension leg of one third U-shaped reinforcing card 11 is vertically upward, and an extension leg of the other third U-shaped reinforcing card 11 is vertically downward.
Claims (9)
1. A horizontal grout stop sheet reinforcement construction method for an arch dam transverse joint grouting area is characterized by comprising the following steps:
s1, determining the installation position of the horizontal grout stopping sheet (4) through measuring the release point;
s2, respectively drilling a row of holes with equal intervals along the length direction of the transverse joint and at different distances from the transverse joint on the side of the first casting block, wherein the hole far away from the transverse joint is a first hole, and the hole close to the transverse joint is a second hole, then installing the lower end of a first vertical supporting steel bar (1) in the first hole, and installing the lower end of a second vertical supporting steel bar (2) in the second hole; the upper parts of the first vertical supporting steel bar (1) and the second vertical supporting steel bar (2) are connected through spot welding by a transverse steel bar (19); two bearing reinforcing steel bars (3) are arranged at the upper parts of the first vertical supporting reinforcing steel bar (1) and the second vertical supporting reinforcing steel bar (2) along the transverse seam direction to form a grout stop sheet erection platform, and the bearing reinforcing steel bars (3) are positioned on the transverse reinforcing steel bars (19); one side of a horizontal grout stopping sheet (4) is placed on a grout stopping sheet erection platform, two first reinforcing steel bars (5) are distributed on the horizontal grout stopping sheet (4) along the length direction of the horizontal grout stopping sheet (4), and the first reinforcing steel bars (5) correspond to the bearing steel bars (3) one by one; the other side of the horizontal grout stopping sheet (4) is attached to the surface of the template, and a second reinforcing steel bar (6) is arranged on the outer side of the upper part of the horizontal grout stopping sheet (4) along the length direction of the horizontal grout stopping sheet (4); then, a first U-shaped reinforcing clamp (7) is clamped into the bearing steel bar (3), the first reinforcing steel bar (5), the grout stopping sheet erection platform and the horizontal grout stopping sheet (4) above the grout stopping sheet erection platform from the upper end of the first vertical supporting steel bar (1), the upper extension foot of the first U-shaped reinforcing clamp (7) presses the part, attached to the template surface, of the horizontal grout stopping sheet (4) and the second reinforcing steel bar (6), and the lower extension foot of the first U-shaped reinforcing clamp (7) faces downwards; binding and connecting the head part of the first U-shaped reinforcing clamp (7) with the upper part of the first vertical supporting steel bar (1), and binding and connecting the bearing steel bar (3), the first reinforcing steel bar (5) and the second reinforcing steel bar (6) with the corresponding part of the first U-shaped reinforcing clamp (7) respectively; a second U-shaped reinforcing card (8) is arranged between two adjacent first U-shaped reinforcing cards (7), the second U-shaped reinforcing card (8) is clamped into the bearing reinforcing steel bars (3), the first reinforcing steel bars (5), the grout stopping sheet erection platform and the horizontal grout stopping sheet (4) above the grout stopping sheet erection platform, and the extension feet of the second U-shaped reinforcing card (8) press the part of the horizontal grout stopping sheet (4) attached to the surface of the template and the second reinforcing steel bars (6); binding and connecting the bearing reinforcing steel bar (3), the first reinforcing steel bar (5) and the second reinforcing steel bar (6) with the corresponding parts of the second U-shaped reinforcing clamp (8) respectively;
s3, when the post-pouring block is prepared, taking out the horizontal grout stopping sheet (4) from the pre-pouring block and cleaning; two third reinforcing steel bars (9) are arranged below the horizontal grout stopping sheet (4) along the length direction of the horizontal grout stopping sheet (4), two fourth reinforcing steel bars (10) are arranged on the horizontal grout stopping sheet (4), and the third reinforcing steel bars (9) correspond to the fourth reinforcing steel bars (10) one by one; a third U-shaped reinforcing clamp (11) is clamped into a third reinforcing steel bar (9), a fourth reinforcing steel bar (10) and a horizontal grout stopping sheet (4); the plurality of third U-shaped reinforcing cards (11) are arranged, and in two adjacent third U-shaped reinforcing cards (11), the extension leg of one third U-shaped reinforcing card (11) is vertically upward, and the extension leg of the other third U-shaped reinforcing card (11) is vertically downward.
2. The arch dam transverse joint grouting area horizontal grout stop sheet reinforcement construction method according to claim 1, characterized in that the first U-shaped reinforcement clamp (7) is a U-shaped structure made of round steel with the diameter of 12cm, and two openings of the U-shaped structure respectively extend in opposite directions to form an upper extension foot and a lower extension foot which are perpendicular to the U-shaped structure.
3. The arch dam transverse joint grouting area horizontal grout stop sheet reinforcement construction method according to claim 1, wherein the second U-shaped reinforcement clamp (8) and the third U-shaped reinforcement clamp (11) are identical in structure and are both made of wire rods with the diameter of 6.5cm, and one opening of each U-shaped structure extends outwards to form an extension foot perpendicular to the U-shaped structure.
4. The arch dam transverse joint grouting area horizontal grout stop sheet reinforcement construction method according to claim 1, characterized in that the distance between two adjacent first U-shaped reinforcement clamps (7) is 150cm, and two second U-shaped reinforcement clamps (8) are installed between two adjacent first U-shaped reinforcement clamps (7) and the distance is 50 cm.
5. The arch dam transverse joint grouting area horizontal grout stop sheet reinforcement construction method according to claim 1, characterized in that the distance between two adjacent third U-shaped reinforcement cards (11) is 50 cm.
6. The method for reinforcing and constructing the horizontal grout-stopping sheet in the grouting area of the transverse joint of the arch dam according to claim 1, wherein the first hole is 30cm away from the transverse joint, the second hole is 10cm away from the transverse joint, and the diameters of the first hole and the second hole are both 12 cm.
7. The construction method for strengthening the horizontal grout-stopping sheet of the horizontal grouting area of the arch dam transverse joint according to the claim 1, characterized in that the horizontal grout-stopping sheet (4) is a rubber grout-stopping sheet.
8. The arch dam transverse joint grouting area horizontal grout stop sheet reinforcement construction method according to claim 1, wherein the supporting steel bars (3), the first reinforcing steel bars (5), the second reinforcing steel bars (6), the third reinforcing steel bars (9) and the fourth reinforcing steel bars (10) are all deformed steel bars with the diameter of 12 cm.
9. The arch dam transverse joint grouting area horizontal grout stop sheet reinforcement construction method according to claim 1, characterized in that the height of the transverse joint grouting area is 9-12 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218445.2A CN111395270A (en) | 2020-03-25 | 2020-03-25 | Horizontal grout stop sheet reinforcement construction method for transverse joint grouting area of arch dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218445.2A CN111395270A (en) | 2020-03-25 | 2020-03-25 | Horizontal grout stop sheet reinforcement construction method for transverse joint grouting area of arch dam |
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| CN111395270A true CN111395270A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010218445.2A Pending CN111395270A (en) | 2020-03-25 | 2020-03-25 | Horizontal grout stop sheet reinforcement construction method for transverse joint grouting area of arch dam |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11158844A (en) * | 1997-11-28 | 1999-06-15 | Honshu Shikoku Bridge Authority | Grout stop |
| CN101649609A (en) * | 2009-09-11 | 2010-02-17 | 中国葛洲坝集团股份有限公司 | Method for embedding and fixing horizontal grout stop belt |
| CN204080816U (en) * | 2014-09-29 | 2015-01-07 | 中国电建集团成都勘测设计研究院有限公司 | Joint face face pulp type grouting system |
| CN204282549U (en) * | 2014-11-17 | 2015-04-22 | 中国葛洲坝集团第三工程有限公司 | A kind of Z-type sealing grout stop plate and first water fixed structure |
| CN206859273U (en) * | 2017-06-26 | 2018-01-09 | 北京中润宝成工程技术有限公司 | A kind of vertical fixing device for installing of middle buried water stop |
-
2020
- 2020-03-25 CN CN202010218445.2A patent/CN111395270A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11158844A (en) * | 1997-11-28 | 1999-06-15 | Honshu Shikoku Bridge Authority | Grout stop |
| CN101649609A (en) * | 2009-09-11 | 2010-02-17 | 中国葛洲坝集团股份有限公司 | Method for embedding and fixing horizontal grout stop belt |
| CN204080816U (en) * | 2014-09-29 | 2015-01-07 | 中国电建集团成都勘测设计研究院有限公司 | Joint face face pulp type grouting system |
| CN204282549U (en) * | 2014-11-17 | 2015-04-22 | 中国葛洲坝集团第三工程有限公司 | A kind of Z-type sealing grout stop plate and first water fixed structure |
| CN206859273U (en) * | 2017-06-26 | 2018-01-09 | 北京中润宝成工程技术有限公司 | A kind of vertical fixing device for installing of middle buried water stop |
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