CN219260912U - Face rockfill dam body filling body capable of being continuously monitored by staged burying and permanent temporary combination - Google Patents
Face rockfill dam body filling body capable of being continuously monitored by staged burying and permanent temporary combination Download PDFInfo
- Publication number
- CN219260912U CN219260912U CN202223270687.XU CN202223270687U CN219260912U CN 219260912 U CN219260912 U CN 219260912U CN 202223270687 U CN202223270687 U CN 202223270687U CN 219260912 U CN219260912 U CN 219260912U
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- dam
- stage
- displacement
- filling body
- 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.)
- Active
Links
Images
Abstract
The utility model provides a face rockfill dam body filling body capable of being continuously monitored by being buried in stages and being combined permanently, wherein a two-stage settlement monitoring displacement punctuation is arranged in the process of constructing the face rockfill dam filling body to the bottom elevation of a wave wall and the concrete pouring of a dam top, the first-stage settlement displacement punctuation is buried at the top of the filling body when the face rockfill dam is filled to the bottom elevation of the wave wall, the second-stage settlement displacement punctuation is buried on the concrete surface of the dam top, and the two-stage settlement monitoring displacement punctuation is welded and connected through a second-stage connecting pipe. The utility model is mainly used for monitoring the accumulated sedimentation of the dam body filling body after the face rockfill dam filling body is constructed to the bottom elevation of the wave wall and enters the reserved sedimentation period, and realizing the seamless connection of the face rockfill dam body filling body construction period and the sedimentation monitoring in the permanent operation period.
Description
Technical Field
The utility model relates to the field of safety monitoring, in particular to a face rockfill dam body filling body which is buried in stages and can be continuously monitored by combining permanent faces.
Background
Face rockfill dams are one of the most common types of earth-rock dams. The rock-fill body of the face rockfill dam is generally filled in a staged manner, and for safe construction of the face rockfill, the pre-settlement intermittent period is often considered before the face rockfill and dam top wave wall concrete construction when the filling body is constructed to the elevation of the bottom of the wave wall, and the pouring construction time of the dam top concrete is determined by analyzing the deformation rule according to monitoring data.
Engineering experience and practice show that the sedimentation deformation of the rock-fill body of the dam body becomes one of the main constraint factors of the safety of the face rock-fill dam. After the anti-slip stability and the penetration stability of the dam body are effectively ensured, the key point is to solve the problem of deformation control of the rock-fill body of the good dam body, which is a fundamental measure for avoiding more structural cracks, large void, extrusion damage along vertical joints and large displacement of peripheral joints of the panel. If the filling body is deformed by a certain amount after completion, the operation of the later-stage panel, the peripheral seam and the like can be greatly damaged. Therefore, the settlement monitoring displacement punctuation analysis filling body is arranged before the panel is poured, and meanwhile, the dam body rock-fill body is effectively controlled not to deform greatly from the aspects of pre-control time length, pre-settlement displacement change rate and the like.
In the prior art, a temporary displacement mark point is arranged on the top of a filling body in the construction period, after convergence of settlement change is monitored, the temporary measuring point is abandoned, and monitoring work in the construction period is terminated; and after the concrete pouring of the panel and the wave wall is completed, carrying out permanent settlement marking on the road surface of the dam crest again in the operation period, and starting settlement monitoring in the operation period. The method loses the monitoring data during construction of the structure above the elevation of the bottom of the wave wall, cannot ensure the integrity and continuity of the monitoring data sequence, and is inconvenient to master the whole deformation process of the filling body from the construction period to the operation period.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a concrete face rockfill dam body filling body which is buried in stages and can be continuously monitored by combining permanent faces. The utility model is mainly used for monitoring the accumulated sedimentation of the dam body filling body after the face rockfill dam filling body is constructed to the bottom elevation of the wave wall and enters the reserved sedimentation period, and realizing the seamless connection of the face rockfill dam body filling body construction period and the sedimentation monitoring in the permanent operation period.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a but stage buries underground, faces to combine continuously monitoring face rock-fill dam body filling body, its characterized in that: setting two-stage settlement monitoring displacement punctuation points in the process of constructing the face plate dam filling body to the elevation of the bottom of the wave wall and the concrete pouring of the dam top, wherein the first-stage settlement displacement punctuation points are buried at the top of the filling body when the face plate dam filling body is filled to the elevation of the bottom of the wave wall, and the second-stage settlement displacement punctuation points are buried on the concrete surface of the dam top and are connected through a second-stage connecting pipe.
Further: the protection tube is sleeved on the outer side of the secondary connecting tube, the secondary connecting tube is connected with the protection tube in a sliding mode, a plurality of rubber rings are arranged between the protection tube and the secondary connecting tube, and the rubber rings are evenly distributed in the height direction of the secondary connecting tube at intervals.
Further: the primary sedimentation displacement calibration point comprises a primary calibration core, wherein the primary calibration core is fixed on a primary connecting plate, and the lower part of the primary connecting plate is connected with a primary connecting pipe.
Further: the first-stage connecting pipe is buried in a pit of the filling body, and cement mortar is backfilled between the first-stage connecting pipe and the pit wall of the filling body for consolidation to jointly form an observation pier of a first-stage displacement mark point.
Further: the secondary connecting pipe extends upwards along with the transition material of the dam crest above the wave wall, penetrates through the dam crest concrete and extends to the dam crest, and is welded with the primary connecting pipe; and a secondary sedimentation displacement punctuation point is welded at the top of the secondary connecting pipe.
Further: the secondary settlement displacement mark point comprises a secondary mark core, the secondary mark core is fixed on a secondary connecting plate, and the bottom of the secondary connecting plate is connected with the top of the secondary connecting pipe.
Further: the rubber ring is bound and fixed on the outer surface of the secondary connecting pipe, and the outer surface of the rubber ring is contacted with the inner wall of the protecting pipe.
Compared with the prior art, the utility model has the following advantages:
the utility model seamlessly connects the settlement deformation measured value of the dam filling body in the construction period with the settlement deformation measured value of the dam filling body in the operation period, and provides basic data and basis for comprehensively grasping the deformation of the rock-fill body of the dam and analyzing the deformation of the face plate of the dam and the stress strain distribution rule.
The utility model has simple structure, is convenient for construction and does not influence the construction progress of the dam. The utility model realizes the permanent combination of dam construction, fully utilizes the monitoring punctuation of the construction period, extends and applies the monitoring of the settlement displacement of the dam filling body in the operation period, and continuously guides the engineering operation.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
fig. 2 is an enlarged schematic view of fig. 1 A-A.
Reference numerals: 1-filling body; 2-wave wall; 3-pit; 4-primary marking; 5-first-stage connecting plates; 6-first-stage connecting pipes; 7-cement mortar; 8-second-phase connecting pipes; 9-dam crest transition material; 10-dam crest concrete; 11-protecting tube; 12-rubber rings; 13-a second-phase connecting plate; 14-second-stage mark.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present utility model; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship described in the drawings are for illustrative purposes only and are not to be construed as limiting the utility model.
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
As shown in fig. 1 to 2, a concrete filled face rockfill dam body is buried in stages, can be continuously monitored by combining faces permanently, two stages of settlement monitoring displacement marks are arranged in the process of constructing the concrete filled face rockfill dam body 1 to the bottom elevation of the blast wall 2 and casting the concrete 10 at the top of the dam, the first stage of settlement displacement marks are buried at the top of the filled face 1 when the concrete filled up to the bottom elevation of the blast wall 2, the second stage of settlement displacement marks are buried on the surface of the concrete 10 at the top of the dam, and the two stages of settlement monitoring displacement marks are welded and connected through a second stage connecting pipe 8.
In order to ensure synchronous deformation of the secondary settlement displacement punctuation and the dam body rock-fill body, a protection pipe 11 is sleeved on the outer side of the secondary connecting pipe 8, the secondary connecting pipe 8 is in sliding connection with the protection pipe 11, a plurality of rubber rings 12 are arranged between the protection pipe 11 and the secondary connecting pipe 8, and the rubber rings 12 are uniformly arranged at intervals in the height direction of the secondary connecting pipe 8. The diameter of the protection tube 11 is
The wall thickness is 5mm. The arrangement of the protection pipe 11 ensures that the secondary connecting pipe 8 is not constrained by the dam crest concrete 10, can realize synchronous deformation of the secondary monitoring mark along with the dam body filling body 1, and permanently monitors the settlement deformation of the dam body filling body 1.
The second-stage connecting pipe 8 and the protecting pipe 11 can slide freely, and meanwhile, the interference of peripheral construction on the perpendicularity of the steel pipe can be reduced by utilizing the elastomer deformation of the rubber ring 12.
The primary sedimentation displacement mark point comprises a primary mark core 4, wherein the primary mark core 4 is fixed on a primary connecting plate 5, and the lower part of the primary connecting plate 5 is connected with a primary connecting pipe 6. In this example, the first-stage connection plate 5 has a wall thickness of 5mm, an outer diameter of 200mm and a length of 1m.
The first-stage connecting pipe 6 is buried in the pit 3 of the filling body 1, in the embodiment, the depth of the pit 3 is 1.2m, the diameter is 60cm, the backfill cement mortar 7 between the first-stage connecting pipe 6 and the pit wall of the filling body 1 is solidified to form an observation pier of a first-stage displacement punctuation together, and the observation pier is used for observing the dam filling body 1 filled below the bottom elevation of the wave wall 2And (5) sedimentation and deformation. In the present embodiment, the diameters of the first-stage connecting pipe 6 and the second-stage connecting pipe 8 are both
The secondary connecting pipe 8 extends upwards along with the dam crest transition material 9 above the wave wall 2, penetrates through the dam crest concrete 10 and extends to the dam crest, and the secondary connecting pipe 8 is welded with the primary connecting pipe 6; and a secondary settlement displacement punctuation is welded at the top of the secondary connecting pipe 8 and is used as a permanent settlement displacement monitoring point of the dam body in the operation period.
The secondary settlement displacement mark point comprises a secondary mark core 14, wherein the secondary mark core 14 is fixed on a secondary connecting plate 13, and the bottom of the secondary connecting plate 13 is connected with the top of the secondary connecting pipe 8.
The rubber ring 12 is bound and fixed on the outer surface of the secondary connecting pipe 8, and the outer surface of the rubber ring 12 is contacted with the inner wall of the protecting pipe 11.
The first-stage settlement mark point measurement value is directly overlapped with the second-stage settlement mark point measurement value to obtain the accumulated settlement deformation measurement value from the construction period to the operation period of the continuous and complete dam body rock-fill body.
The first-stage connecting plate 5, the first-stage connecting pipe 6, the second-stage connecting pipe 8, the protection pipe 11 and the second-stage connecting plate 13 are all steel structures.
The installation steps of the utility model are as follows:
s1, when a dam body filling body 1 is constructed to the elevation of the bottom of a dam crest wave wall 2, a pit 3 with the depth of 1.2m and the diameter of 60cm is dug in the filling body 1;
s2, welding and fixing the primary standard core 4 on the top of the primary connecting pipe 6 through a primary connecting plate 5 with the diameter of 250 mm;
s3, burying the primary standard core 4 and the primary connecting pipe 6 in the filling body pit 3, and solidifying the steel pipe and the dam filling material by adopting cement mortar 7.
S4, adopting a welding connection mode between the second-stage connecting pipe 7 and the first-stage connecting plate 5, wherein the second-stage connecting pipe 7 extends upwards to the dam crest along with the dam crest transition material 9 and the dam crest concrete 10 above the wave wall 2;
s5, a protective tube 11 is arranged outside the second-stage connecting tube 8, and a plurality of rubber rings 12 with the thickness of 0.5cm are arranged between the two tubes, so that the two steel tubes can slide relatively freely.
S6, welding the secondary standard core 14 on the top of the secondary connecting pipe through a secondary connecting plate 13 with the diameter of 250 mm.
According to the description and drawings of the utility model, a staged embedded and permanent combined continuous monitoring face rockfill dam body filling body can be easily manufactured or used by a person skilled in the art, and the positive effects described by the utility model can be produced.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (7)
1. The utility model provides a but stage buries underground, faces to combine continuously monitoring face rock-fill dam body filling body, its characterized in that: the face plate dam filling body (1) is constructed to the bottom elevation of the wave wall (2) and the dam crest concrete (10) is poured, two-stage settlement monitoring displacement punctuations are arranged in the process of pouring, the first-stage settlement displacement punctuations are buried at the top of the filling body (1) when the bottom elevation of the wave wall (2) is filled, the second-stage settlement displacement punctuations are buried on the surface of the dam crest concrete (10), and the two-stage settlement monitoring displacement punctuations are connected through a second-stage connecting pipe (8).
2. The staged embedded permanently bonded continuously monitorable face rockfill dam filling of claim 1, wherein: the protection tube (11) is established to the outside cover of second phase connecting pipe (8), sliding connection between second phase connecting pipe (8) and protection tube (11), is provided with a plurality of rubber rings (12) between protection tube (11) and second phase connecting pipe (8), and a plurality of rubber rings (12) are evenly arranged at second phase connecting pipe (8) direction of height interval.
3. The staged embedded permanently bonded continuously monitorable face rockfill dam filling of claim 1, wherein: the primary sedimentation displacement calibration point comprises a primary calibration core (4), wherein the primary calibration core (4) is fixed on a primary connecting plate (5), and the lower part of the primary connecting plate (5) is connected with a primary connecting pipe (6).
4. A staged embedded permanent temporary combination continuous monitoring rock-fill dam body as recited in claim 3, wherein: the first-stage connecting pipe (6) is buried in the pit (3) of the filling body (1), cement mortar (7) is backfilled between the first-stage connecting pipe (6) and the pit wall of the filling body (1) for solidification, and the first-stage displacement punctuation observation piers are formed together.
5. A staged embedded permanent temporary combination continuous monitoring rock-fill dam body as recited in claim 3, wherein: the secondary connecting pipe (8) extends upwards along with the transition material (9) above the wave wall (2) and penetrates through the dam crest concrete (10) to extend to the dam crest, and the secondary connecting pipe (8) is welded with the primary connecting pipe (6); and a secondary sedimentation displacement punctuation point is welded at the top of the secondary connecting pipe (8).
6. The staged embedded permanently bonded continuously monitorable face rockfill dam filling of claim 1, wherein: the secondary settlement displacement punctuation comprises a secondary punctuation core (14), the secondary punctuation core (14) is fixed on a secondary connecting plate (13), and the bottom of the secondary connecting plate (13) is connected with the top of the secondary connecting pipe (8).
7. The staged embedded permanently bonded continuously monitorable face rockfill dam filling of claim 2, wherein: the rubber ring (12) is bound and fixed on the outer surface of the secondary connecting pipe (8), and the outer surface of the rubber ring (12) is contacted with the inner wall of the protecting pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223270687.XU CN219260912U (en) | 2022-12-06 | 2022-12-06 | Face rockfill dam body filling body capable of being continuously monitored by staged burying and permanent temporary combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223270687.XU CN219260912U (en) | 2022-12-06 | 2022-12-06 | Face rockfill dam body filling body capable of being continuously monitored by staged burying and permanent temporary combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219260912U true CN219260912U (en) | 2023-06-27 |
Family
ID=86862801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223270687.XU Active CN219260912U (en) | 2022-12-06 | 2022-12-06 | Face rockfill dam body filling body capable of being continuously monitored by staged burying and permanent temporary combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219260912U (en) |
-
2022
- 2022-12-06 CN CN202223270687.XU patent/CN219260912U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207079558U (en) | High-speed railway subgrade settlement monitoring element protection | |
| CN106641440B (en) | A kind of transverse crossing railway line underground piping jacking construction method | |
| Chen et al. | Long rectangular box jacking project: a case study | |
| CN110631560B (en) | Underground excavation interval monitoring and measuring method for subway station in dense building area | |
| CN109386293B (en) | Sealing type receiving construction method for rectangular jacking pipe with super-large section | |
| CN106988750B (en) | Implementation mode of ultra-short-distance underpass of existing station of large-span interval tunnel | |
| CN207567836U (en) | Compression test stake ess-strain comprehensive detection system | |
| CN110158649B (en) | Construction method for adjacent underground pipeline during open caisson sinking construction | |
| CN104863108B (en) | A kind of ground-connecting-wall soil lateral pressure box embedded device | |
| CN104264683B (en) | Building concave shape ultra-deep foundation pit subregion supporting method is protected for three around literary composition | |
| CN108442370A (en) | The broken pile connector processing method of prestressed concrete pipe pile | |
| CN101899831B (en) | Active variable-stiffness leveling pile and construction method thereof | |
| Gao et al. | Influence of Benoto bored pile construction on nearby existing tunnel: A case study | |
| Yang et al. | Ground and tunnel deformation induced by excavation in pipe-roof pre-construction tunnel: A case study | |
| CN219260912U (en) | Face rockfill dam body filling body capable of being continuously monitored by staged burying and permanent temporary combination | |
| JP6640891B2 (en) | Grouting method for joints of submerged boxes | |
| CN104074209B (en) | Deep plate load testing device | |
| CN109235507B (en) | Stratum reinforcing system and method for reinforcing existing tunnel | |
| CN110055957A (en) | A kind of strong development ultra-fine hole pile construction method in karst region | |
| CN216588595U (en) | Rectangular multi-tunnel reinforcing and monitoring system | |
| CN113685190B (en) | Reinforcing system for shield to penetrate shallow soft clay and construction method | |
| Aye et al. | Design and construction of large diameter circular shafts | |
| CN209622195U (en) | Push-bench and received well steel sleeve docking structure in a kind of jacking construction | |
| CN102967292B (en) | The monitoring method of asphaltic concrete core wall amount of deflection and structure | |
| CN207862907U (en) | Study the test platform of unfavorable geologic body and bridge structure interaction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |