CN113047225A

CN113047225A - Protection system for side slope of hydraulic and hydroelectric engineering and construction method thereof

Info

Publication number: CN113047225A
Application number: CN202110311876.8A
Authority: CN
Inventors: 朱红波; 徐欢军; 陈祖建; 廖惠军; 徐志红; 龙丕成
Original assignee: Taoyuan Hydropower Engineering Construction Co ltd
Current assignee: Taoyuan Hydropower Engineering Construction Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-06-29

Abstract

The utility model relates to a protection system and construction method for hydraulic and hydroelectric engineering side slope belongs to the technical field who relates to hydraulic engineering side slope protection building, and it is including being used for setting up the foundation layer on the side slope, be provided with the overburden on the foundation layer, the overburden is provided with and is used for fixing the reinforced structure in the side slope ground, be provided with the inoxidizing coating on the overburden, the foundation layer is the metalling, the overburden includes the concrete panel, be provided with crisscross horizontal beam and vertical beam each other on the concrete panel, vertical beam includes horizontal segment and slope section, reinforced structure includes two dead levers of being connected with horizontal segment and slope section respectively, and the dead lever of being connected with the horizontal segment is fixed in the ground of side slope bottom, and the dead lever of being connected with the slope section is fixed in the ground of side slope. This application has the effect that promotes hydraulic and hydroelectric engineering side slope shock resistance.

Description

Protection system for side slope of hydraulic and hydroelectric engineering and construction method thereof

Technical Field

The application relates to the technical field of hydraulic engineering side slope protection buildings, in particular to a protection system for a hydraulic and hydroelectric engineering side slope and a construction method thereof.

Background

Along with the rapid development of social economy, the construction process of hydraulic engineering is accelerated, and the generated effect is larger and larger, so that corresponding management and protection work must be performed in the development process of the hydraulic engineering, and the performance of the hydraulic engineering is exerted to the maximum. From the current situation, hydraulic engineering in China has certain gap compared with developed countries abroad. Under the current situation, the supervision and management of water conservancy projects must be increased, and the water conservancy construction quality is improved on the basis of introducing a slope protection technology, so that the water conservancy projects are developed more quickly.

In water conservancy and hydropower engineering, because a bank slope or a structural foundation of a river channel is washed by water flow, the slope or the structure is unstable, slope landslide or structural collapse can occur, and great economic loss and safety risk are caused. In the existing hydraulic engineering construction, the river channel side slope is protected by adopting a stone-laid slope protection or a concrete pouring slope protection mode.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that conventional concrete slopes have poor impact resistance for areas with large water conservancy impact force.

Disclosure of Invention

In order to improve the shock resistance of the slope of the hydraulic and hydroelectric engineering, the application provides a protection system for the slope of the hydraulic and hydroelectric engineering and a construction method thereof

In a first aspect, the application provides a protection system for a hydraulic and hydroelectric engineering side slope, which adopts the following technical scheme:

the utility model provides a protection system for hydraulic and hydroelectric engineering side slope, is including being used for setting up the foundation layer on the side slope, be provided with the overburden on the foundation layer, be provided with on the overburden and be used for fixing the reinforced structure in the side slope ground, be provided with the inoxidizing coating on the overburden, the foundation layer is the metalling, the overburden includes the concrete panel, be provided with crisscross horizontal beam and vertical roof beam each other on the concrete panel, vertical roof beam includes horizontal segment and slope section, reinforced structure includes two dead levers of being connected with horizontal segment and slope section respectively, fixes in the ground of side slope bottom with the fixed pole that the horizontal segment is connected, fixes in the ground of side slope with the dead lever that the slope section is connected.

Through adopting above-mentioned technical scheme, the rubble ground can solidify the surface of side slope, concrete slab can carry out good combination with the rubble layer to further fix, horizontal roof beam and vertical roof beam can strengthen concrete slab's intensity, through set up the dead lever respectively at horizontal segment and slope section, can fix horizontal roof beam and vertical roof beam, make whole side slope protection system can bear fore-and-aft impact, also can bear horizontal impact, the performance that hydraulic and hydroelectric engineering side slope shocks resistance is better.

Optionally, the height of horizontal roof beam and vertical roof beam is higher than the overburden, horizontal roof beam and vertical roof beam are formed with the packing cell in the top on overburden, the inoxidizing coating sets up in the packing cell, the inoxidizing coating is by the shaping of a plurality of concrete block concatenation, and is horizontal adjacent the mutual butt of concrete block, and is vertical adjacent dislocation joint between the concrete block.

Through adopting above-mentioned technical scheme, the height of horizontal roof beam and vertical roof beam is higher, and intensity is higher on the one hand, and on the other hand can be fixed the concrete block, avoids the concrete block to take place to slide under water impact, and the joint that misplaces between the vertical adjacent concrete block also can make the connection between the concrete block inseparabler.

Optionally, the concrete block is provided with a clamping assembly, the clamping assembly comprises two clamping blocks which are symmetrically arranged, a first clamping groove is formed between the two clamping blocks, and a plurality of clamping blocks are clamped in the first clamping grooves of the adjacent concrete blocks when the concrete blocks are spliced.

Through adopting above-mentioned technical scheme, through the cooperation in joint piece and joint groove, can enough fix two horizontal adjacent concrete block, can fix two vertical adjacent concrete block again, the location effect is better.

Optionally, a second clamping groove is formed in the transverse beam, and a clamping block on the concrete block close to the transverse beam is clamped in the second clamping groove.

Through adopting above-mentioned technical scheme, can make concrete block inseparabler in the connection between the horizontal roof beam, further strengthen stability.

Optionally, a weight reduction groove is formed in the concrete block, a planting matrix is filled in the weight reduction groove, and plants are planted in the planting matrix.

Through adopting above-mentioned technical scheme, subtract heavy groove on the one hand and can subtract the weight of concrete block, reduce the cost of concrete block production and transportation, on the other hand can slow down rivers and to the erodeing of concrete block and concrete panel through the planting plant in subtracting heavy inslot, reduces flowing water and to the erodeing of side slope protection system.

Optionally, the fixing rod penetrates through a crossing of the transverse beam and the longitudinal beam, the fixing rod is a hollow rod, a through hole is formed in one end, located in the foundation, of the fixing rod, and concrete slurry is poured into the fixing rod.

Through adopting above-mentioned technical scheme, the dead lever can be fixed horizontal roof beam and vertical roof beam simultaneously, and through pouring the concrete thick liquid in with the dead lever, the concrete thick liquid can flow into the ground through the through-hole in, makes the dead lever can fix in the ground well.

Optionally, one end of the fixing rod, which is located outside the foundation, is in threaded connection with a locking block, a locking pad is arranged between the locking block and the transverse beam, and the locking block abuts against the locking pad on the transverse beam.

Through adopting above-mentioned technical scheme, the latch segment can make the dead lever more stable fix on horizontal roof beam, through setting up locking pad, can compress locking pad when screwing the latch segment, makes the latch segment lock under the tension effect of locking pad can not take place not hard up.

Optionally, a safety rope is arranged between the transversely adjacent fixing rods.

Through adopting above-mentioned technical scheme, when the pedestrian accidentally followed the bank protection and slided, the safety rope can play the effect of stopping, promoted the security performance of bank protection.

On the other hand, the application provides a construction method for a slope protection system of a hydraulic and hydroelectric engineering, which adopts the following technical scheme:

a construction method for a slope protection system of a hydraulic and hydroelectric engineering comprises the following steps:

s1: primarily flattening the original slope protection of the dam;

s2: paving a crushed stone layer on the slope protection, and vibrating the crushed stone layer;

s3: pouring a covering layer, a transverse beam and a longitudinal beam on the gravel layer;

s4: holes are formed at the staggered positions of the transverse beams and the longitudinal beams, and the fixing rods are inserted into the holes;

s5: and pouring concrete grout into the fixing rod and locking the fixing rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the covering layer and the reinforcing structure, the concrete plate of the covering layer can be well combined with the gravel layer, the transverse beam and the longitudinal beam can enhance the strength of the concrete plate, and the fixing rod can fix the whole covering layer on the foundation, so that the whole slope protection system can bear longitudinal impact and transverse impact, and the water conservancy and hydropower engineering slope has better impact resistance;

2. by arranging the concrete blocks, the concrete blocks can be tightly combined by dislocation clamping, and the clamping blocks on the concrete blocks are clamped with the second clamping grooves on the transverse beams, so that the stability can be further enhanced;

3. through set up the safety rope on adjacent dead lever, can block the pedestrian of unexpected landing, the security performance of reinforcing bank protection.

Drawings

FIG. 1 is a front view of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of FIG. 1 taken along the longitudinal beam;

FIG. 3 is an enlarged partial schematic view of B of FIG. 1;

FIG. 4 is an enlarged partial schematic view of A of FIG. 1;

figure 5 is a schematic view of the construction of the concrete block of figure 1.

Description of reference numerals: 1. a ground layer; 2. a cover layer; 3. reinforcing the structure; 31. fixing the rod; 32. a locking pad; 33. a locking block; 34. a groove; 4. a protective layer; 5. a transverse beam; 6. a longitudinal beam; 61. an inclined section; 62. a horizontal segment; 7. a clamping assembly; 71. a clamping block; 72. a first clamping groove; 8. connecting columns; 9. filling the cells; 10. concrete building blocks; 11. a safety cord; 12. a second clamping groove; 13. and a weight reduction groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a protection system for a water conservancy and hydropower engineering side slope and a construction method. Referring to fig. 1 and 2, the slope protection system comprises a foundation layer 1 arranged on a slope, a covering layer 2 is arranged on the foundation layer 1, a reinforcing structure 3 for fixing the covering layer 2 on a foundation of the slope is arranged on the covering layer 2 to enhance the stability of the slope protection system, and a protective layer 4 is arranged on the covering layer 2.

The stratum basale 1 is the rubble layer, carries out preliminary arrangement with the original bank protection of side slope when the construction at first, carries out the level and smooth of initial stage through machinery, and after leveling the completion, earlier lay the rubble that thickness is 0.1m on its surface, then lay the coarse sand that thickness is 0.1m toward the rubble top. And then vibrating the gravel layer by using a plane vibrating device, so that the gravel and the coarse sand can be tightly combined, and the density of the foundation layer 1 is not less than that of the original foundation.

And then paving a covering layer 2 on the gravel layer, after concrete is poured into a field, firstly paving a plane below the side slope, then paving a slope, when the slope is paved, firstly placing concrete materials above a pouring position, then vibrating the concrete to enable the concrete to naturally descend, gradually filling gaps below the concrete, and paving the concrete to a thickness of 0.1 m.

In the process of paving the covering layer 2, a prefabricated reinforcement cage is placed in the covering layer 2, the thickness of the reinforcement cage is larger than that of the covering layer 2, after concrete of the covering layer 2 is basically solidified, templates are placed on two sides of the reinforcement cage, then concrete is poured between the two templates to form a transverse beam 5 and a longitudinal beam 6, the transverse beam 5 and the longitudinal beam 6 are staggered to form a net shape, and the longitudinal beam 6 comprises an inclined section 61 arranged on the slope surface and a horizontal section 62 arranged on the plane below the slope surface.

In the process of pouring the transverse beams 5 and the longitudinal beams 6, a mounting sleeve is prefabricated at the staggered position of the transverse beams 5 and the longitudinal beams 6, and the mounting sleeve penetrates into the foundation from top to bottom. The reinforcing structure 3 comprises a plurality of groups of fixing rods 31, the fixing rods 31 penetrate through the mounting sleeve from top to bottom during construction, the fixing rods 31 are inserted into the ground, the fixing rods 31 are hollow rods, one ends of the fixing rods 31, located in the foundation, are conical and pointed, so that the fixing rods 31 can be inserted into the foundation easily, and through holes are formed in the side walls of the fixing rods 31, located in the foundation, in part.

The fixing rod 31 connected with the horizontal section 62 is fixed in the foundation of the bottom of the side slope, and the fixing rod 31 connected with the inclined section 61 is fixed in the foundation of the side slope, so that the transverse beam 5 and the longitudinal beam 6 can be fixed in the foundation.

And then, concrete slurry is poured into the fixing rod 31, the strength grade of the grouting material is selected according to the importance, the cement material with lower strength is not required to be applied for configuration, the requirement meets the construction requirement, and meanwhile, the quantity preparation is carried out according to the construction requirement. The ratio of the grouting water to the cement should be controlled to be 0.36:1, so that the action value of the cement slurry is better played, and the subsequent construction effect is prevented from being influenced. Before grouting, whether the pore channel is smooth or not needs to be checked firstly, various impurities are cleared in time, and then grouting operation is performed step by step. The pressure during grouting should be controlled between 0.3-0.5Mpa to promote grouting more sufficiently and avoid the problem of void.

Referring to fig. 3, after the concrete in the fixing rod 31 is to be cured, the locking pad 32 is fitted over the fixing rod 31 and then the locking block 33 is screwed to the fixing rod 31, so that the locking block 33 presses the locking pad 32 against the transverse beam 5. The anti-loosening pad 32 is conical, and a plurality of grooves 34 are uniformly formed in the outer edge of the peripheral wall of the anti-loosening pad 32 along the circumferential direction. When the locking block 33 abuts against the anti-loosening pad 32, the anti-loosening pad 32 is deformed, and the locking block 33 cannot loosen under the action of the tension of the anti-loosening pad 32.

The top end of each fixing rod 31 is in threaded connection with a connecting column 8, and a safety rope is arranged between every two transverse adjacent fixing rods 31 and fixed on the connecting column 8. The safety rope 11 is a steel wire rope 11, and when a pedestrian slides down from the side slope, the safety rope 11 can separate the sliding-down person.

Referring to fig. 4 and 5, filling cells 9 are formed above the covering layer 2 by the transverse beams 5 and the longitudinal beams 6, the protective layer 4 is arranged in the filling cells 9, the protective layer 4 is formed by splicing a plurality of concrete blocks 10, the transverse adjacent concrete blocks 10 are mutually abutted, and the longitudinal adjacent concrete blocks 10 are in staggered clamping connection.

Concrete block 10 is the class rectangle, and concrete block 10's both sides are provided with joint subassembly 7 respectively, and joint subassembly 7 is including two joint pieces 71 that the symmetry set up, and joint piece 71 is right trapezoid, is formed with first joint groove 72 between two joint pieces 71, and first joint groove 72 is isosceles trapezoid. When a plurality of concrete blocks 10 are spliced, the transverse adjacent concrete blocks 10 are butted with each other end to end, the longitudinal adjacent concrete blocks 10 are arranged in a staggered mode, and the clamping blocks 71 are clamped in the first clamping grooves 72 on the adjacent concrete blocks 10.

After the position of the first concrete block 10 is determined, a theodolite is used for making two lines which are vertical to and parallel to the water flow direction, a leveling instrument is used for leveling, and the line hanging starts to be laid. The concrete blocks 10 are laid in two rows, about 10m long, starting at the left lower edge or the right lower edge in the water flow direction, and then are laid obliquely upward at an angle of 45 degrees.

When the lower edge of the concrete block 10 is connected with the transverse beam 5, the transverse beam 5 is poured firstly, the clamping block 71 on the concrete block 10 close to the transverse beam 5 is clamped in the second clamping groove 12, then the concrete block 10 is laid, and the concrete block 10 is connected with the concrete block 10 by a cast-in-place concrete belt; after laying, the joints between the concrete blocks 10 are filled with dry sand, so that the concrete blocks 10 are connected into a whole by the friction of the sand under the action of external force.

The middle part of the concrete block 10 is provided with a lightening groove 13, and after the concrete block 10 is laid, planting matrixes are laid in the lightening groove 13 and used for planting plants. Planting flooding-resistant grass seeds in the weight reduction grooves 13 of the underwater part so as to slow down the scouring of water flow, prevent waves and reduce scouring force and water eddy.

The implementation principle of the protection system for the water conservancy and hydropower engineering side slope and the construction method is as follows: during construction, firstly, the side slopes are arranged, then the broken stones are paved on the side slopes to form a foundation layer 1, and then the covering layer 2 is paved on the foundation layer 1. After the covering layer 2 is finished, the transverse beam 5 and the longitudinal beam 6 are poured on the covering layer 2, then the fixing rods 31 are arranged at the staggered positions of the transverse beam 5 and the longitudinal beam 6 in a penetrating mode, the fixing rods 31 are fixed on the transverse beam 5 through the locking blocks 33, and finally the concrete blocks 10 are filled in the filling cells 9 formed between the transverse beam 5 and the longitudinal beam 6.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a protection system for hydraulic and hydroelectric engineering side slope which characterized in that: comprises a ground base layer (1) arranged on a side slope, a covering layer (2) is arranged on the ground base layer (1), the covering layer (2) is provided with a reinforcing structure (3) for fixing in a slope foundation, the covering layer (2) is provided with a protective layer (4), the ground base layer (1) is a gravel layer, the covering layer (2) comprises a concrete panel, the concrete panel is provided with transverse beams (5) and longitudinal beams (6) which are mutually staggered, the longitudinal beam (6) comprising a horizontal section (62) and an inclined section (61), the reinforcing structure (3) comprises two fixing rods (31) which are respectively connected with the horizontal section (62) and the inclined section (61), a fixing rod (31) connected with the horizontal section (62) is fixed in the foundation at the bottom of the side slope, the fixing rod (31) connected with the inclined section (61) is fixed in the foundation of the side slope.

2. A protection system for a hydraulic and hydroelectric engineering slope according to claim 1, characterized in that: the utility model discloses a concrete block, including horizontal roof beam (5), overburden (2), inoxidizing coating (4) are formed with packing cell (9) in the top of overburden (2) with vertical roof beam (6), horizontal roof beam (5) and vertical roof beam (6), inoxidizing coating (4) are formed with packing cell (9) in the top of overburden (2), the inoxidizing coating is spliced the shaping by a plurality of concrete block (10), and is horizontal adjacent concrete block (10) butt each other, and is vertical adjacent dislocation joint between concrete block (10).

3. A protection system for a hydraulic and hydroelectric engineering slope according to claim 2, characterized in that: be provided with joint subassembly (7) on concrete block (10), joint subassembly (7) are formed with first joint groove (72), polylith including two joint pieces (71) that the symmetry set up between two joint pieces (71) during concrete block (10) concatenation, joint piece (71) joint is in first joint groove (72) on adjacent concrete block (10).

4. A protection system for a hydraulic and hydroelectric engineering slope according to claim 3, characterized in that: and a second clamping groove (12) is formed in the transverse beam (5), and a clamping block (71) on the concrete building block (10) close to the transverse beam (5) is clamped in the second clamping groove (12).

5. A protection system for a hydraulic and hydroelectric engineering slope according to claim 4, wherein: the concrete block (10) is provided with a weight reduction groove (13), a planting matrix is filled in the weight reduction groove (13), and plants are planted in the planting matrix.

6. A protection system for a hydraulic and hydroelectric engineering slope according to claim 5, wherein: the fixing rod (31) penetrates through the staggered position of the transverse beam (5) and the longitudinal beam (6), the fixing rod (31) is a hollow rod, a through hole is formed in one end, located in the foundation, of the fixing rod (31), and concrete slurry is poured into the fixing rod (31).

7. A protection system for a hydraulic and hydroelectric engineering slope according to claim 6, wherein: the fixing rod (31) is located one end outside the foundation and is in threaded connection with a locking block (33), a locking pad (32) is arranged between the locking block (33) and the transverse beam (5), and the locking block (33) supports the locking pad (32) tightly on the transverse beam (5).

8. A protection system for a hydraulic and hydroelectric engineering slope according to claim 7, wherein: a safety rope (11) is arranged between the transverse adjacent fixing rods (31).

9. A protection system for a slope of a hydraulic and hydroelectric engineering and a construction method thereof comprise the following steps:

s1: primarily flattening the original slope protection of the dam;

s3: pouring a covering layer (2), a transverse beam (5) and a longitudinal beam (6) on the gravel layer;

s4: holes are formed at the staggered positions of the transverse beams (5) and the longitudinal beams (6), and fixing rods (31) are inserted into the holes;

s5: concrete grout is poured into the fixing rod (31), and the fixing rod (31) is locked.