CN113186949A - Drainage and guide slope protection system for high and steep rock slope - Google Patents
Drainage and guide slope protection system for high and steep rock slope Download PDFInfo
- Publication number
- CN113186949A CN113186949A CN202110459298.2A CN202110459298A CN113186949A CN 113186949 A CN113186949 A CN 113186949A CN 202110459298 A CN202110459298 A CN 202110459298A CN 113186949 A CN113186949 A CN 113186949A
- Authority
- CN
- China
- Prior art keywords
- drainage
- slope
- protection system
- side slope
- slope protection
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Abstract
The invention discloses a drainage guide slope protection system, in particular to a drainage guide slope protection system for a high-steep rock slope, and belongs to the technical field of design and construction of hydropower engineering buildings. The invention also discloses a construction method for the drainage and slope protection system. The drainage and guide slope protection system for the high and steep rocky side slope and the construction method thereof are relatively low in construction difficulty and remarkably reduced in construction excavation amount. The drainage guide slope protection system comprises a side slope protection structure, and further comprises a water collection drainage guide structure, wherein the water collection drainage guide structure and the side slope protected by the side slope protection structure are arranged on the middle lower part of a side slope body and form an included angle of 30-35 degrees. The construction method comprises the following steps of constructing the framework dowel bars, fixing the mesh sheet steel bars on the upper parts of the exposed parts of the framework dowel bars by adopting connecting stirrups, constructing concrete spraying on the side slopes and the drainage ditches, and constructing holes in the drainage holes of the side slopes.
Description
Technical Field
The invention relates to a drainage guide slope protection system, in particular to a drainage guide slope protection system for a high-steep rock slope, and belongs to the technical field of design and construction of hydropower engineering buildings. The invention also relates to a construction method for the drainage and slope protection system.
Background
The side slope drainage ditch is a commonly used governing measure in side slope engineering, and forms a side slope intercepting, preventing and drainage network together with the intercepting ditch, slope concrete spraying and slope drainage holes, and has very important functions for reducing the water content in a slope body, reducing the seepage pressure in the slope body and ensuring that the interior of a side slope is in a dry and stable state.
At present, the high and steep rock slopes mostly adopt a conventional drainage ditch arrangement scheme of firstly excavating and then building, as shown in fig. 1 and fig. 2. The structure is characterized in that: 1) the slope surface drainage protection system consists of sprayed concrete, a drainage hole and a drainage ditch; 2) the drainage ditch is arranged on a platform formed by excavating a natural terrain line of a side slope, and the platform is provided with a certain slope for guiding one side; 3) the concrete side wall is arranged on the outer side of the platform and is anchored on a rock mass below the platform through a dowel bar; 4) the bottom and the inner side slope of the platform are provided with sprayed concrete. The structure has the advantages that: the structure is comparatively reliable, drainage effect is better. The main problems of this structure are: 1) because the terrain is steep, the height of an excavation side slope formed by platform excavation is higher, and the excavation amount is larger; 2) platform excavation blasting operation is carried out on a high and steep side slope with relatively poor geological conditions, so that certain disturbance can be caused to the rock mass of the side slope, and the stability of the side slope is reduced; 3) when the height difference between the platform and the ground or the construction platform is large, the pouring construction difficulty of the concrete side wall outside the platform is also large.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the drainage and guide slope protection system for the high-steep rock side slope is relatively low in construction difficulty and remarkably reduced in construction excavation amount. The application also provides a construction method for the drainage and slope protection system.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a drainage bank protection system that leads for high steep rock matter side slope, includes side slope protective structure, drainage bank protection system still including the drainage guide structure that catchments, drainage guide structure and side slope protective structure protect the side slope be 30 ~ 35 degrees contained angles arrange in the well lower part of side slope body.
Further, the side slope protection structure is a concrete layer sprayed on the slope surface of the high-steep rock side slope after the loose soil and rock layer is cleaned.
In the preferable mode of the scheme, a drainage hole extending into the high and steep rocky slope body is further arranged in the concrete layer, and an outlet of the drainage hole is arranged in the high and steep rocky slope body in a downward inclined mode.
Further, the drainage guide structure that catchments include support connection skeleton, fixed supporting component and drainage guide ditch subassembly that catchments, drainage guide ditch subassembly pass through support connection skeleton arrange the well lower part at the side slope body under fixed supporting component's cooperation.
The preferable mode of the scheme is that the support connecting framework comprises at least one row of inclined framework joint bars inserted at the middle lower part of the side slope body, and the fixed support component is arranged on the part of the framework joint bar extending out of the side slope body.
Furthermore, the fixed supporting component comprises a mesh reinforcing steel bar and a connecting stirrup, the water collecting and drainage guide channel component is supported on the mesh reinforcing steel bar, and the mesh reinforcing steel bar is connected with the framework inserted steel bar through the connecting stirrup.
The water collecting and drainage guiding channel component is a concrete spraying layer attached to the mesh reinforcing steel bars, and the thickness of the concrete spraying layer is 10-15 cm.
Furthermore, each framework dowel bar is inserted into the high and steep rock slope body from the whole body along the length direction of the slope and inclines downwards.
A construction method for the drainage slope protection system comprises the steps of constructing framework insertion bars, fixing mesh reinforcing steel bars on the upper portions of exposed portions of the framework insertion bars by adopting connecting stirrups, spraying concrete to a side slope and a drainage ditch, and drilling drainage holes of the side slope.
Further, loose earth and stones on the natural terrain line of the side slope are cleaned before the framework joint bar construction is carried out.
The invention has the beneficial effects that: this application is through increasing on current side slope protective structure's basis and setting up catchment drainage guide structure and constitute drainage guide slope protection system, then directly will, the side slope surface of catchment drainage guide structure and side slope protective structure protection be the arrangement in the well lower part of the side slope body of 30 ~ 35 degrees contained angles. Therefore, when the drainage and guide slope protection system is constructed, rock wall excavation is not needed to be carried out firstly, but the framework dowel bars are directly and firstly constructed, then the mesh sheet steel bars are fixed on the upper parts of the exposed parts of the framework dowel bars by the aid of the stirrups, construction of the steps of slope and drainage ditch concrete spraying construction and slope drainage hole drilling construction can be rapidly completed, construction difficulty is effectively reduced, construction excavation amount is remarkably reduced, construction cost is reduced, and construction safety is improved.
Drawings
FIG. 1 is a schematic view of a conventional side slope drainage ditch according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of a drainage and guidance slope protection system for a high-steep rocky side slope according to the present invention;
fig. 4 is a sectional view B-B of fig. 3.
Labeled as: the side slope protection structure comprises a side slope protection structure 1, a water collecting and drainage guide structure 2, a side slope surface 3, a side slope body 4, a drain hole 5, a supporting and connecting framework 6, a fixed supporting component 7, a water collecting and drainage guide channel component 8, a mesh reinforcing steel bar 9 and a connecting stirrup 10.
Detailed Description
Fig. 3 and 4 show a drainage and guidance slope protection system for a steep rock slope, which is provided by the invention and has relatively low construction difficulty and remarkably reduced construction excavation amount, and a construction method for the drainage and guidance slope protection system. The drainage and guide slope protection system comprises a side slope protection structure 1, and further comprises a water collection drainage and guide structure 2, wherein the water collection drainage and guide structure 2 and a side slope surface 3 protected by the side slope protection structure 1 are arranged at the middle lower part of a side slope body 4 at an included angle of 30-35 degrees. This application is through increasing on current side slope protective structure's basis and setting up the drainage guide structure and constitute drainage guide protect slope system, then directly will, drainage guide structure and the side slope of side slope protective structure protection personally submit 30 ~ 35 degrees contained angles arrange in the well lower part of side slope body. Therefore, when the drainage guide slope protection system is constructed, rock wall excavation is not needed to be carried out firstly, but the framework dowel bars are directly and firstly constructed, then the mesh sheet steel bars are fixed on the upper parts of the exposed parts of the framework dowel bars by the stirrups, and then the side slope and the drainage ditch concrete spraying construction and the side slope drainage hole drilling construction can be rapidly completed, so that the construction difficulty is effectively reduced, the construction excavation amount is obviously reduced, the construction cost is reduced, and the purpose of improving the construction safety is achieved.
In the above-mentioned embodiment, combine current side slope protective structure 1 to be the structural feature of the concrete layer of spraying on the slope surface of the high cliff matter side slope of the loose stone layer of clearing up usually, this application is in the concrete layer in still be provided with the wash port 5 that stretches into in the high cliff matter side slope body, the arrangement of wash port 5 upwards slope be in the high cliff matter side slope body. Further, for furthest's reduction construction work load, reduce the construction degree of difficulty, can guarantee simultaneously to lead the stability and the reliability of drainage ditch, this application catchment and lead drainage structure 2 including support connection skeleton 6, fixed stay subassembly 7 and catchment drainage ditch subassembly 8, catchment drainage ditch subassembly 8 pass through support connection skeleton 6 be in the well lower part of arranging at side slope body 4 under the cooperation of fixed stay subassembly 7. At this time, the support connecting framework 6 should include at least one row of inclined framework joint bars inserted into the middle lower part of the side slope body, and the fixed support component 7 is arranged on the part of the framework joint bar extending out of the side slope body 4; the fixed supporting component 7 can comprise mesh steel bars 9 and connecting stirrups 10, the water collecting and drainage guide channel component 8 is supported on the mesh steel bars 9, and the mesh steel bars 9 are connected with the framework inserted bars through the connecting stirrups 10; the water collecting and drainage guide channel assembly 8 is a concrete spraying layer attached to the mesh reinforcing steel bars 9, and the thickness of the concrete spraying layer is 10-15 cm. Correspondingly, in order to facilitate the leading-out and drainage, each framework dowel bar is inserted into the high-steep rock slope body from the whole body in a downward inclined manner along the length direction of the slope. During construction, loose earth and stones on the natural terrain line of the side slope are cleaned before the framework dowel construction is carried out.
In summary, the technical solution provided by the present application also has the following advantages,
1) the drainage ditch adopts the embodiment of the dowel bars, the mesh sheet steel bars and the sprayed concrete, so that the excavation construction of the side slope is not needed, and the influence of the excavation blasting on the stability of the side slope is avoided;
2) the structure formed by the inserted bars, the mesh steel bars and the sprayed concrete is combined with the side slope sprayed concrete, a closed waterproof triangular channel structure is formed on the section, and the slope guide side is arranged, so that the requirement on the drainage function of the side slope can be met;
3) compared with the conventional drainage ditch scheme, the construction of high and steep slope excavation and the construction of pouring the large platform concrete retaining wall with the height difference are avoided, the construction process is more convenient, and the construction difficulty is greatly reduced.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical problem that this application will be solved provides one kind and had both satisfied drainage function requirement, can avoid excavation construction again, reduce to the steep side slope disturbance of height, reduce the steep side slope drainage structures of construction degree of difficulty and construction method thereof.
The technical scheme adopted by the application for solving the technical problem is as follows:
1) the slope surface drainage protection system consists of sprayed concrete, a drainage hole and a drainage ditch;
2) from bottom to top, the drainage ditch structure is respectively a dowel, a mesh reinforcement and sprayed concrete, and the drainage ditch needs to be provided with a certain slope to guide one side;
3) one part of the inserting bar extends into the natural terrain line, and the other part of the inserting bar is exposed out of the natural terrain line; the azimuth angle of the dowel bar is perpendicular to the direction of the slope surface of the side slope, and the included angle between the dip angle and the slope surface of the side slope is 30-35 degrees;
4) the adjacent inserted bars are connected by mesh steel bars, the bottoms of the mesh steel bars are connected with slope surface sprayed concrete, the tops of the mesh steel bars are slightly lower than the tail ends of the exposed parts of the inserted bars, and the mesh steel bars are fixed on the exposed parts of the inserted bars by stirrups;
5) the sprayed concrete is arranged on the upper portion of the mesh reinforcement and 10-15 cm in thickness, the lower portion of the sprayed concrete is in lap joint with the side slope sprayed concrete, and the upper portion of the sprayed concrete does not exceed the tail end of the exposed portion of the inserted bar.
The construction method for solving the technical problem comprises the following steps:
firstly, cleaning loose earth and stones on a natural terrain line of a side slope;
secondly, constructing the inserted bars of the drainage ditch;
thirdly, fixing the mesh reinforcing steel bars on the upper parts of the exposed parts of the inserted bars by adopting stirrups;
fourthly, carrying out concrete spraying construction on the side slope and the drainage ditch;
and finally, carrying out the drilling construction of the side slope drain hole.
Example one
The technical scheme of the application is further explained by combining the drawings and the embodiment as follows:
as shown in the figure, the technical scheme adopted by the application for solving the technical problem is as follows:
a. the slope surface drainage protection system consists of sprayed concrete, a drainage hole and a drainage ditch;
b. from bottom to top, the drainage ditch structure is respectively a dowel, a mesh reinforcement and sprayed concrete, and the drainage ditch is provided with a certain slope and leads to one side;
c. one part of the inserting bar extends into the natural terrain line, and the other part of the inserting bar is exposed out of the natural terrain line; the azimuth angle of the dowel bar is perpendicular to the direction of the slope surface of the side slope, and the included angle between the dip angle and the slope surface of the side slope is 30-35 degrees;
d. the adjacent inserted bars are connected by mesh steel bars, the bottoms of the mesh steel bars are connected with slope surface sprayed concrete, the tops of the mesh steel bars are slightly lower than the tail ends of the exposed parts of the inserted bars, and the mesh steel bars are fixed on the exposed parts of the inserted bars by stirrups;
e. the sprayed concrete is arranged on the upper portion of the mesh reinforcement and 10-15 cm in thickness, the lower portion of the sprayed concrete is in lap joint with the side slope sprayed concrete, and the upper portion of the sprayed concrete does not exceed the tail end of the exposed portion of the inserted bar.
The construction method for solving the technical problem comprises the following steps:
a. firstly, cleaning loose earth and stones on a natural terrain line of a side slope;
b. secondly, constructing the inserted bars of the drainage ditch;
c. thirdly, fixing the mesh reinforcing steel bars on the upper parts of the exposed parts of the inserted bars by adopting stirrups;
d. fourthly, carrying out concrete spraying construction on the side slope and the drainage ditch;
e. and finally, carrying out the drilling construction of the side slope drain hole.
The beneficial effect of this application is as follows:
a. the drainage ditch adopts the embodiment of the dowel bars, the mesh sheet steel bars and the sprayed concrete, so that the excavation construction of the side slope is not needed, and the influence of the excavation blasting on the stability of the side slope is avoided;
b. the structure formed by the inserted bars, the mesh steel bars and the sprayed concrete is combined with the side slope sprayed concrete, a closed waterproof triangular channel structure is formed on the section, and the slope guide side is arranged, so that the requirement on the drainage function of the side slope can be met;
c. compared with the conventional drainage ditch scheme, the construction of high and steep slope excavation and the construction of pouring the large platform concrete retaining wall with the height difference are avoided, the construction process is more convenient, and the construction difficulty is greatly reduced.
To sum up, the steep slope drainage structure that this application provided had both satisfied drainage function requirement, can avoid excavation construction again, reduce to steep slope disturbance, reduce the construction degree of difficulty.
Claims (10)
1. The utility model provides a drainage bank protection system leads for high steep rock matter side slope, includes side slope protective structure (1), its characterized in that: the drainage guide slope protection system further comprises a water collection drainage guide structure (2), and the water collection drainage guide structure (2) and the slope surface (3) protected by the slope protection structure (1) form an included angle of 30-35 degrees and are arranged on the middle lower portion of the slope body (4).
2. The drainage and slope protection system for high steep rocky slopes according to claim 1, wherein: the side slope protection structure (1) is a concrete layer sprayed on the slope surface of the high-steep rock side slope after the loose soil and stone layer is cleaned.
3. The drainage and slope protection system for high steep rocky slopes according to claim 2, wherein: and a drain hole (5) extending into the high and steep rocky slope body is further formed in the concrete layer, and an outlet of the drain hole (5) is obliquely arranged in the high and steep rocky slope body in a downward manner.
4. The drainage and slope protection system for high steep rocky slopes according to claim 1, 2 or 3, wherein: the water collecting and drainage guiding structure (2) comprises a supporting and connecting framework (6), a fixed supporting component (7) and a water collecting and drainage guiding ditch component (8), wherein the water collecting and drainage guiding ditch component (8) is arranged at the middle lower part of a slope body (4) under the matching of the fixed supporting component (7) through the supporting and connecting framework (6).
5. The drainage and slope protection system for high steep rocky slopes according to claim 4, wherein: the supporting and connecting framework (6) comprises at least one row of inclined framework joint bars inserted at the middle lower part of the side slope body, and the fixed supporting component (7) is arranged on the part of the framework joint bar extending out of the side slope body (4).
6. The drainage and slope protection system for high steep rocky slopes according to claim 5, wherein: the fixed supporting component (7) comprises a mesh reinforcing steel bar (9) and a connecting stirrup (10), the water collecting and drainage channel component (8) is supported on the mesh reinforcing steel bar (9), and the mesh reinforcing steel bar (9) is connected with the framework inserted steel bar through the connecting stirrup (10).
7. The drainage and slope protection system for high steep rocky slopes according to claim 6, wherein: the water collecting and drainage guide channel assembly (8) is attached to a concrete spraying layer on the mesh reinforcing steel bars (9), and the thickness of the concrete spraying layer is 10-15 cm.
8. The drainage and slope protection system for high steep rocky slopes according to claim 5, wherein: each framework dowel bar is inserted into the high and steep rock slope body from the whole body along the length direction of the slope and inclines downwards.
9. A construction method for the drainage and slope protection system of claim 1, which is characterized in that: the construction method comprises the following steps of constructing the framework dowel, fixing the mesh sheet steel bars (9) on the upper part of the exposed part of the framework dowel by adopting the connecting stirrups (10), and performing concrete spraying construction on the side slope and the drainage ditch and drilling construction on the drainage holes of the side slope.
10. The construction method according to claim 9, wherein: before the framework joint bar construction, loose earth and stones on the natural terrain line of the side slope are cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110459298.2A CN113186949A (en) | 2021-04-27 | 2021-04-27 | Drainage and guide slope protection system for high and steep rock slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110459298.2A CN113186949A (en) | 2021-04-27 | 2021-04-27 | Drainage and guide slope protection system for high and steep rock slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113186949A true CN113186949A (en) | 2021-07-30 |
Family
ID=76979415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110459298.2A Pending CN113186949A (en) | 2021-04-27 | 2021-04-27 | Drainage and guide slope protection system for high and steep rock slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113186949A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809036A (en) * | 2022-05-05 | 2022-07-29 | 中国电建集团贵州电力设计研究院有限公司 | Prefabricated high-waterproof ecological slope protection construction method |
-
2021
- 2021-04-27 CN CN202110459298.2A patent/CN113186949A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809036A (en) * | 2022-05-05 | 2022-07-29 | 中国电建集团贵州电力设计研究院有限公司 | Prefabricated high-waterproof ecological slope protection construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108005664A (en) | A kind of hole pile construction method of platform structure | |
| CN105421500B (en) | It is a kind of based on low-level curtain and the basement anti-floating system of blood pressure lowering of drawing water | |
| CN109594568B (en) | Rock slope ecological protection structure and method thereof | |
| CN212742566U (en) | Stable in structure's excavation supporting | |
| CN109736334A (en) | A kind of collapsible loess slope supporting construction device and method | |
| CN211446958U (en) | Do benefit to underground structure of drainage | |
| CN100513705C (en) | Underground beam-pile frame construction for reinforcing side slope | |
| CN113186949A (en) | Drainage and guide slope protection system for high and steep rock slope | |
| CN209924997U (en) | Anti-floating construction structure for crossing existing subway tunnel on urban tunnel | |
| CN112854260B (en) | Ecological concrete rock-soil slope protection structure and construction method | |
| CN1333139C (en) | Column supported underground continuous wall | |
| CN108425366A (en) | Civil engineering pattern foundation pit supporting structure safety support structure | |
| CN214993954U (en) | Drainage and guide slope protection system for high and steep rock slope | |
| CN211174126U (en) | Open cut tunnel structure | |
| CN112376586A (en) | Slope shallow surface loose body natural lattice reinforcing structure and method | |
| CN209228377U (en) | A kind of multistage set arch structure and pipe canopy set arch structure for tunnel portal supporting | |
| CN212896398U (en) | Ecological slope protection | |
| CN215483004U (en) | Expansive soil stratum ultra-deep shaft supporting structure | |
| CN210529716U (en) | Adjacent foundation pit soil body supporting construction | |
| CN111911183B (en) | Tunnel hole entering construction method based on end wall type guide wall structure | |
| CN212926108U (en) | End wall type guide wall structure | |
| CN210482331U (en) | Supporting structure of side slope | |
| CN209538198U (en) | Abnormity draining friction pile | |
| CN210509240U (en) | Shotcrete anchor net supporting construction | |
| CN210067010U (en) | Anti-seismic low-carbon building structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |