CN218027511U - Seepage-proofing interlocking structure and dam seepage-proofing system - Google Patents
Seepage-proofing interlocking structure and dam seepage-proofing system Download PDFInfo
- Publication number
- CN218027511U CN218027511U CN202222011951.1U CN202222011951U CN218027511U CN 218027511 U CN218027511 U CN 218027511U CN 202222011951 U CN202222011951 U CN 202222011951U CN 218027511 U CN218027511 U CN 218027511U
- Authority
- CN
- China
- Prior art keywords
- seepage
- well
- proofing
- wells
- dam
- 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
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a hydraulic and hydroelectric engineering technical field discloses a prevention of seepage interlocking structure and dam seepage prevention system, dam seepage prevention system include the prevention of seepage interlocking structure, with the dam body concrete cut-off wall that the one end of prevention of seepage interlocking structure links to each other and the dam abutment massif that links to each other with the one end of prevention of seepage interlocking structure. The seepage-proofing interlocking structure comprises a plurality of seepage-proofing wells, well walls and a central concrete backfill body, wherein the well walls are in one-to-one correspondence with the seepage-proofing wells, the seepage-proofing wells extend vertically, the seepage-proofing wells are sequentially arranged along the horizontal direction, two adjacent seepage-proofing wells are communicated, the well walls are arranged along the inner peripheral walls of the seepage-proofing wells, the well walls comprise well wall concrete layers and reinforcing pieces embedded in the well wall concrete layers, and the central concrete backfill body is poured into the well walls. The utility model discloses a set up chain well formula seepage prevention structure, the working face is less, and the earthwork excavation volume is less, need not put the slope, and the construction work volume is less, and convenient and fast just can guarantee the prevention of seepage quality, solves small-size hydraulic and hydroelectric engineering dam abutment and winds the infiltration problem.
Description
Technical Field
The utility model relates to a hydraulic and hydroelectric engineering technical field especially relates to a prevention of seepage interlocking structure and dam prevention of seepage system.
Background
At present, the reservoir dam adopting concrete as the impervious body has good impervious performance of the concrete impervious body, but the impervious performance of the dam abutment rock-soil body is relatively poor, so the problem of dam abutment seepage is more obvious. The existing dam abutment seepage-proofing technology comprises the following steps: firstly, open excavation is carried out to form a groove until a relatively impervious rock mass is reached, and concrete is backfilled to form a seepage-proof wall which is connected with a main body seepage-proof wall of a dam to form a closed seepage-proof system; secondly, adopting drilling holes to inject cement paste, such as filling and grouting, consolidation and grouting, high-pressure injection of cement paste and the like; thirdly, arranging an underground concrete continuous wall. The first method needs slope releasing, forms a large excavation surface, and has the disadvantages of large workload, large investment and long period. The second method is difficult to form a closed continuous impervious body because the cracks of the rock-soil mass between the holes cannot be fully filled. The third method requires large grooving machinery and hoisting machinery, and adjacent continuous walls are easy to be staggered and forked, thereby causing seepage. Therefore, for small-sized water conservancy and hydropower engineering, a dam abutment seepage-proofing structure with reliable seepage-proofing quality, small engineering quantity and quick construction is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: the seepage-proofing interlocking structure and the dam seepage-proofing system solve the problem of considering engineering quantity for the dam shoulder seepage-proofing quality.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: an impermeable interlocking structure comprising: the seepage-proof wells extend vertically, the seepage-proof wells are sequentially arranged along the horizontal direction, and every two adjacent seepage-proof wells are communicated; the well walls are in one-to-one correspondence with the anti-seepage wells, the well walls are arranged along the inner peripheral walls of the anti-seepage wells, and each well wall comprises a well wall concrete layer and a reinforcing piece embedded in the well wall concrete layer; and the central concrete backfill body is poured in the well wall.
Specifically, the impervious well is cylindrical.
Specifically, the well wall includes a plurality of well sections, and a plurality of well sections are consecutive along vertical, the well section includes the main part and inlays and locate a plurality of reinforcing bars in the main part, each the main part is folded and is limited jointly and form the wall of a well concrete layer, reinforcing bar in each the main part links to each other and the limited formation the reinforcement.
Specifically, the main part includes from last to the support section and the linkage segment that connect gradually down, form cylindrical through-hole in the linkage segment, form big end down's round platform type through-hole in the support section.
Specifically, part of the reinforcing steel bars extend along the horizontal direction, part of the reinforcing steel bars extend along the vertical direction, a plurality of the reinforcing steel bars are connected in a staggered mode, and the reinforcing steel bars extending along the vertical direction in two adjacent well sections are connected with each other.
Specifically, the rebar has a rebar bend.
Specifically, the well section depth is no greater than 2 meters.
Specifically, the material of the well wall concrete layer is fine aggregate concrete, and the strength grade is not lower than C20.
Specifically, the impervious grade of the central concrete backfill body is not lower than P4, and the strength grade is not lower than C25.
A dam seepage prevention system comprising: a dam body concrete impervious wall; one end of the seepage-proofing interlocking structure is connected to the dam body concrete seepage-proofing wall; and the other end of the anti-seepage interlocking structure is connected to the dam abutment mountain.
The utility model discloses a prevention of seepage interlocking structure and dam prevention of seepage system, its beneficial effect lies in: because the interlocking well type structure is arranged, the working face is smaller, the earthwork excavation amount is smaller, the slope is not required to be set, the construction work amount is smaller, the operation is convenient and fast, better seepage-proofing quality can be ensured, and the problem of seepage surrounding of the dam abutment of the small hydraulic and hydroelectric engineering is solved.
Drawings
Fig. 1 is a schematic structural diagram of an impermeable well according to an embodiment of the present invention;
fig. 2 is a schematic view of an anti-seepage interlocking structure of an embodiment of the present invention on a vertical surface;
fig. 3 is a schematic sectional view of the anti-seepage interlocking structure of the embodiment of the present invention on a plane.
In the figure, 1, an impermeable well; 2. a well wall; 21. a well wall concrete layer; 22. a reinforcement; 3. a central concrete backfill body; 23. well section; 211. a main body; 212. reinforcing steel bars; 2111. a support section; 2112. a connecting section; 2121. a steel bar elbow; 4. super-trenching; 5. temporary wood; 6. a dam body concrete impervious wall.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "horizontal", "vertical", "depth", "up", "down", "vertical", "bottom", "inner", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "communicating" are to be construed broadly, e.g., as fixed or removable connections or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 to fig. 3, the anti-seepage interlocking structure and the anti-seepage system for dam according to the preferred embodiment of the present invention include: the seepage-proof well comprises a plurality of seepage-proof wells 1, wherein the seepage-proof wells 1 extend vertically, the seepage-proof wells 1 are sequentially arranged along the horizontal direction, and every two adjacent seepage-proof wells 1 are communicated; the well walls 2 are in one-to-one correspondence with the anti-seepage wells 1, the well walls 2 are arranged along the inner peripheral walls of the anti-seepage wells 1, and each well wall 2 comprises a well wall concrete layer 21 and a reinforcing piece 22 embedded in the well wall concrete layer 21; and the central concrete backfill body 3 is poured in the well wall 2.
Because the seepage-proofing interlocking structure is an interlocking well type structure, the working face is small, the earth excavation amount is small, the slope is not required to be set, the construction work amount is small, convenience and rapidness are realized, and better seepage-proofing quality can be ensured.
Preferably, the impermeable well 1 is cylindrical.
Further, the well wall 2 comprises a plurality of well sections 23, the well sections 23 are sequentially connected in the vertical direction, each well section 23 comprises a main body 211 and a plurality of steel bars 212 embedded in the main body 211, the main bodies 211 are stacked and jointly limited to form the well wall concrete layer 21, and the steel bars 212 in the main bodies 211 are connected and limited to form the reinforcing member 22. The well wall 2 is formed by sequentially excavating in a joint mode and erecting the mold to pour, so that collapse caused by one-time downward excavation of the rock mass to the basement and formwork erection pouring is avoided; the stability of the well wall 2 before the filling of the central concrete backfilling body 3 is enhanced by embedding a reinforcing element 22 in the well wall concrete layer 21.
In some preferred embodiments, the main body 211 includes a supporting section 2111 and a connecting section 2112 connected in sequence from top to bottom, a cylindrical through hole is formed in the connecting section 2112, and a truncated cone-shaped through hole with a small top and a large bottom is formed in the supporting section 2111. Through the round platform type through-hole that forms big end down in the support section 2111, form cylindrical through-hole in the linkage section 2112 for support section 2111 upper surface area is greater than linkage section 2112 lower surface area, and then makes the up end of each support section 2111 as the holding surface of last linkage section 2112, plays better supporting effect.
In some preferred embodiments, a portion of the reinforcing bars 212 extends in a horizontal direction, a portion of the reinforcing bars 212 extends in a vertical direction, and a plurality of the reinforcing bars 212 are connected in a staggered manner, and the reinforcing bars 212 extending in the vertical direction in two adjacent well sections 23 are connected to each other to enhance the stability. Preferably, the connection between the reinforcing bars 212 may be welding or binding.
Further, each of the reinforcing bars 212 has a reinforcing bar bent 2121, and the reinforcing bar bent 2121 is used for grasping the main body 211 to achieve a stabilizing effect.
Preferably, the depth of the well joint 23 is not more than 2 meters, so that the risk of collapse of the single well joint 23 before the vertical formwork is poured due to the fact that the excavation depth is too deep is avoided.
In some preferred embodiments, the material of the well wall concrete layer 21 is fine stone concrete, and the strength grade is not lower than C20.
Preferably, the impervious grade of the central concrete backfill body 3 is not lower than P4, and the strength grade is not lower than C25, so as to ensure the impervious effect and the impervious linkage structure strength.
A dam seepage prevention system comprising: a dam body concrete impervious wall 6; one end of the seepage-proofing interlocking structure is connected to the dam concrete seepage-proofing wall 6; and a dam bank (not shown), wherein the other end of the seepage-proofing linkage structure is connected to the dam bank.
Preferably, the seepage-proof well 1 extends into rock mass which is relatively impervious to water on vertical surface, so as to prevent water from seeping from the lower part and bypassing the seepage-proof interlocking structure; one end of the plane is connected with a dam concrete impervious wall 6, and the other end of the plane extends into a rock body which is relatively impervious to the dam abutment, so that water is prevented from being leaked around the periphery.
The utility model discloses a prevention of seepage interlocking structure recommends and adopts following work progress:
excavating from the 6 side of the dam body concrete impervious wall or the rock mass side of the dam abutment opposite to the water tightness, excavating to the depth of 23 well sections, over-excavating for 25-30 cm at the periphery of the bottom surface, and backfilling sand so as to reserve an excavation space for the excavation of the next section;
paving reinforcing steel bars 212 which are overlapped in the horizontal direction and the vertical direction in the space reserved for the well section 23, wherein the vertical reinforcing steel bars 212 penetrate into the super-excavation ditch 4 so as to be connected with the next reinforcing steel bar 212 conveniently, and installing temporary wood 5 at one side of an adjacent impervious well 1 to be excavated in the horizontal direction;
placing a template (not shown) which is as high as the well section 23, namely the template is a solid body matched with the inner wall of the well section 23 and is divided into an upper section and a lower section consistent with the well section 23, wherein the template is formed by assembling and can be split for taking out after vertical mold pouring;
pouring concrete twice, pouring a connecting section 2112 and a supporting section 2111 in sequence, completing the construction of the single well section 23, and taking out a template;
downwards excavating to the depth of the next well section 23, repeating the steps until the well section is excavated downwards to a relatively impervious rock mass, pouring to form the lowest well section 23, and completing construction of the single well wall 2;
continuing the construction of the adjacent impervious wells 1 and the well walls 2 until the construction of all the well walls 2 is finished, sequentially pouring central concrete backfilling bodies 3 in the wells from the side of the dam body concrete impervious wall 6 or the side of the dam abutment opposite to the impervious rock body to the middle, and removing the temporary wood 5 on the side edge of each poured central concrete backfilling body 3;
and taking the anti-seepage well 1 which is positioned in the middle of the anti-seepage linkage structure and has a relatively low bottom elevation as a main attack well, and finally pouring, wherein the seepage water in each anti-seepage well 1 is concentrated into the main attack well, and the collected seepage water is discharged before the concrete backfill body 3 at the center of the pouring of the main attack well, and then pouring is carried out, so that the construction of the anti-seepage linkage structure is completed.
To sum up, the embodiment of the utility model provides an anti-seepage interlocking structure and dam anti-seepage system, it has solved the dam abutment seepage-surrounding problem through setting up interlocking well formula anti-seepage structure, because it is well formula structure, the construction is convenient, the working face is less, the earthwork excavation volume is less, need not put the slope, need not large-scale mechanical equipment; in the construction process, the concrete is excavated to the bottom of the seepage-proofing well 1, the bottom of the seepage-proofing well 1 is exposed outside, the well bottom can be ensured to be excavated to a relatively impervious rock mass, the central concrete backfill body 3 can be poured without erecting a mold after the well wall 2 is formed, the construction is convenient, and the quality of the concrete with the seepage-proofing chain structure is easy to control.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be considered as the protection scope of the present invention.
Claims (10)
1. An impermeable interlocking structure, comprising:
the seepage-proof wells extend vertically, the seepage-proof wells are sequentially arranged along the horizontal direction, and every two adjacent seepage-proof wells are communicated;
the well walls are in one-to-one correspondence with the anti-seepage wells, the well walls are arranged along the inner peripheral walls of the anti-seepage wells, and each well wall comprises a well wall concrete layer and a reinforcing piece embedded in the well wall concrete layer; and
the central concrete backfill body is poured in the well wall.
2. The impermeable chain of claim 1, wherein the impermeable well is cylindrical.
3. The seepage-proofing interlocking structure according to claim 1, wherein the well wall comprises a plurality of well sections, the well sections are sequentially connected in a vertical direction, each well section comprises a main body and a plurality of steel bars embedded in the main body, the main bodies are stacked and jointly limited to form the well wall concrete layer, and the steel bars in the main bodies are connected and limited to form the reinforcing piece.
4. The seepage-proofing interlocking structure according to claim 3, wherein the main body comprises a supporting section and a connecting section which are sequentially connected from top to bottom, a cylindrical through hole is formed in the connecting section, and a truncated cone-shaped through hole with a small top and a big bottom is formed in the supporting section.
5. The impermeable chain structure of claim 3, wherein some of the reinforcing bars extend horizontally, some of the reinforcing bars extend vertically, and a plurality of the reinforcing bars are connected in a staggered manner, and the reinforcing bars extending vertically in two adjacent well sections are connected with each other.
6. The impermeable chain according to claim 5, wherein the rebar has a bend.
7. The impermeable chain structure of claim 3, wherein the well section depth is no more than 2 meters.
8. The seepage-proofing interlocking structure according to claim 1, wherein the material of the well wall concrete layer is fine aggregate concrete, and the strength grade is not lower than C20.
9. The impermeable chain structure of claim 1, wherein the impermeable grade of the central concrete backfill is not less than P4 and the strength grade is not less than C25.
10. A dam seepage prevention system comprising:
a dam body concrete impervious wall;
the barrier chain structure of any one of claims 1-9, having one end connected to the dam concrete barrier wall; and
and the other end of the anti-seepage interlocking structure is connected to the dam abutment mountain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222011951.1U CN218027511U (en) | 2022-08-01 | 2022-08-01 | Seepage-proofing interlocking structure and dam seepage-proofing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222011951.1U CN218027511U (en) | 2022-08-01 | 2022-08-01 | Seepage-proofing interlocking structure and dam seepage-proofing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218027511U true CN218027511U (en) | 2022-12-13 |
Family
ID=84342041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222011951.1U Active CN218027511U (en) | 2022-08-01 | 2022-08-01 | Seepage-proofing interlocking structure and dam seepage-proofing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218027511U (en) |
-
2022
- 2022-08-01 CN CN202222011951.1U patent/CN218027511U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103184734B (en) | A kind of construction method implanting slip casting compound pile | |
| US20140026518A1 (en) | Construction method for root-type foundation anchorage and bored, root-type cast in-situ pile with anchor bolts | |
| CN105672348A (en) | Construction method for cropping bridge pile foundation at sandy gravel stratum of abyssal region | |
| CN106930321B (en) | The construction method of underground structure is built in a kind of stake of pipe-jacking with large diameter combination hole | |
| CN103981898A (en) | Integral open-excavation node top-down underground engineering construction method | |
| CN103015456B (en) | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure | |
| CN103321246B (en) | Underground diaphragm wall based foundation pit construction method | |
| CN103422510B (en) | Steel pipe frame type cofferdam structure and construction method | |
| CN106948340B (en) | A kind of construction method of the Manual excavated pile structure of high polymer grouting protection | |
| CN108457282A (en) | Deep water hard rock is without back cover steel sheet pile cofferdam construction method | |
| CN104631440B (en) | A kind of existing large-section in-situ concrete pile strength core increases foundation pit supporting construction and constructional method | |
| CN106884433A (en) | Control vibrations pile pulling causes the structure of underground structure depression and control depression method | |
| CN107119712A (en) | Multi-arch retaining wall and construction method thereof | |
| CN106930277A (en) | A kind of construction of manual-excavation cast-in-place pile method | |
| CN206070508U (en) | Device for reinforcing foundation | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN110847207A (en) | Structure and construction method for newly-built bridge with subway tunnel passing through existing bridge piles | |
| CN211200426U (en) | Anti-sliding supporting and retaining structure for miniature steel pipe pile retaining wall | |
| CN101793027B (en) | Core-grouted static pressure anchor rod pile | |
| CN114575355A (en) | Soil protection and descent construction method | |
| CN109898556A (en) | A kind of underground pipe gallery structure and sunk type construction method | |
| KR20110019674A (en) | G.w foundation reinforcement method | |
| CN206768860U (en) | Multi-arch retaining wall | |
| CN113431065A (en) | Rapid construction method and structure of occlusive pile and steel sleeve combined cofferdam | |
| CN107700521A (en) | One kind is built（Structure）Build thing foundation stabilization and underpin pier and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |