CN219343251U

CN219343251U - Hydraulic engineering bank protection

Info

Publication number: CN219343251U
Application number: CN202320318949.0U
Authority: CN
Inventors: 贾建立
Original assignee: Shandong Hydraulic Road And Bridge Engineering Quality Testing Co ltd
Current assignee: Shandong Hydraulic Road And Bridge Engineering Quality Testing Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-14
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a hydraulic engineering slope protection, which solves the problems that the bonding strength between an ecological bag and a slope of a bottom slope protection is not high and local collapse and collapse are easy to occur in the ecological slope protection. The ecological slope protection area and the hardening area are arranged on the main engineering slope at intervals along the horizontal and transverse directions; the ecological slope protection area is composed of a steel wire mesh, backfill, a connecting buckle and an ecological bag which are sequentially arranged from bottom to top, wherein two sides of the steel wire mesh are respectively and fixedly connected with the corresponding hardening areas, the connecting buckle formed by injection molding comprises a connecting part and a tensioning part, conical bulges are respectively arranged on the upper surface and the lower surface of the connecting part, the tensioning part is provided with screw holes, and screw nails penetrate through the screw holes and the steel wire mesh and fix the tensioning part on a main engineering. The main body of the slope protection engineering adopts an ecological bag structure, plants grow to form an ecological slope protection after watering, and the anti-collapse and anti-collapse performance of the slope protection is improved through structural reinforcement.

Description

Hydraulic engineering bank protection

Technical Field

The utility model relates to the technical field of hydraulic engineering construction.

Background

Several ecological revetments mainly comprise: vegetation slope protection, geotechnical material composite planting base slope protection, vegetation type ecological concrete slope protection and cement ecological planting base slope protection.

Taking a geotechnical material composite planting base slope protection as an example, constructing by adopting a geotechnical ecological bag stacking mode in the prior art, filling nutrient soil in the geotechnical ecological bag, broadcasting plant seeds, and watering after construction, so that green plants can grow in the geotechnical ecological bag.

Knowledge about ecological bags, for example, CN115500175a discloses an ecological bag for mountain restoration, comprising a bag body made of polypropylene polymer material, a seed pocket made of water-soluble fiber, the seed pocket is sewed on the bag body, the inner side of the seed pocket is stuck with a uniform mixture of plant seeds, superphosphate and copper sulfate by degradable glue, and the bag body is filled with planting matrixes.

The ecological bags and the revetments are in a stacked state, the stress state is not good, the problem that the ecological bags are washed out in the process of storms and river washout is solved, and the ecological revetments are easy to partially collapse and collapse.

Disclosure of Invention

In order to solve the defects of the prior art, the utility model provides a hydraulic engineering slope protection, which solves the problems that the bonding strength between an ecological bag and a bottom slope protection slope in the existing ecological slope protection is not high and is easy to collapse locally.

The technical scheme adopted for solving the technical problems is as follows:

the hydraulic engineering slope protection is characterized by comprising a main body engineering, an ecological slope protection area and a hardening area, wherein the main body engineering is a rammed entity, and the ecological slope protection area and the hardening area are arranged on a slope of the main body engineering at intervals along the horizontal and transverse directions; the ecological slope protection area consists of a steel wire mesh, backfill, a connecting buckle and an ecological bag which are sequentially arranged from bottom to top, wherein two sides of the steel wire mesh are respectively and fixedly connected with the corresponding hardening area, the connecting buckle formed by injection molding comprises a connecting part and a tension part, conical bulges connected with the upper ecological bag and the lower ecological bag are respectively arranged on the upper surface and the lower surface of the connecting part, the connecting part is provided with a notch for dividing the conical bulges into two parts, and barbs are arranged on the outer surfaces of the conical bulges; the tension part is provided with a screw hole, and screw nails penetrate through the screw hole and the steel wire mesh and fix the tension part on the main engineering.

Further, the conical protrusions on the upper surface and the conical protrusions on the lower surface of the connecting part are arranged in a staggered mode, and the staggered mode is corresponding to staggered stacking of the ecological bags, so that the holding force is improved.

The anchoring depth of the screw nail is not less than 20 cm.

The screw nail is an injection molding piece, and the height of a screw bulge on the screw nail is not less than 2 cm, so that the screw nail has enough holding force with soil.

Further, be provided with the structure of windowing on the upper side of ecological bag, the expression form of this structure of windowing can be circular or square or rectangle, and its effect is that be favorable to in-bag plant seedling pass this structure of windowing to break out, has solved traditional ecological bag plant seedling and has penetrated the problem that this non-woven fabrics material has difficulty, is favorable to the fast growth of plant.

Further, the steel wire mesh is galvanized iron wire mesh, when the length direction or width direction of the breadth of the galvanized iron wire mesh is insufficient, the galvanized iron wire mesh can be spliced in a mutually overlapping mode by using geotechnical ropes, and wide coverage can be met.

Wherein the coupling portion has a rectangular profile and the tension portion has a herringbone profile.

The slope protection main body engineering bottom is provided with a slope toe drainage ditch, and the top is provided with a slope top drainage ditch.

The hardening area is a reinforced concrete casting body.

The hardening area is a step ladder, and the ladder side is provided with a vertical drainage ditch.

The beneficial effects of the utility model are as follows: the main body of the slope protection engineering adopts an ecological bag structure, plants grow to form an ecological slope protection after watering, and the ecological slope protection is reinforced by the structure, wherein the reinforcement comprises steel wire mesh reinforcement, screw reinforcement, connecting buckle reinforcement and plant root system reinforcement, so that the slope protection is more resistant to collapse and collapse, and the bonding strength between the ecological bag and the slope surface at the bottom of the ecological slope protection is improved. The specific effects are described in detail with reference to specific embodiments.

Drawings

Fig. 1 is a vertical view of a biological slope protection area.

Fig. 2 is a vertical view of the hardened region.

Fig. 3 is a plan view of the slope protection project.

Fig. 4 is a front view of the screw.

Fig. 5 is a schematic illustration of bridging of galvanized steel wire mesh.

Fig. 6 is a top view of the ecological bag.

Fig. 7 is an elevation view of an ecological bag.

Fig. 8 is a perspective view of the hitch buckle.

Fig. 9 is a side view of the hitch.

Fig. 10 is a diagram showing the molding effect of the slope protection engineering.

In the figure:

an ecological slope protection area A, a hardening area B,

00 main engineering, 01 slope foot drainage ditch, 02 slope top drainage ditch, 03 groove cover plate,

10 connecting buckles, 11 connecting parts, 111 conical bulges, 112 notches, 113 barbs, 12 tension parts, 121 spiral nail holes,

a 20-screw nail, a 21-nut,

30 ecological bags, 31 windowing structures,

40 galvanized wire netting and 41 geotechnical ropes.

Detailed Description

In newly constructed hydraulic slope protection engineering, the main engineering is generally formed by adopting a method of taking soil on site and manually stacking, specifically, the main engineering is generally formed by locally tamping clay, sand-filled soil, humus soil and the like, the gradient of the main engineering is consistent with engineering drawings, and the main engineering has a certain basic holding force and can be basically kept in a certain stable state.

In this embodiment, the upper side of the slope protection is seen in a top view, and referring to fig. 3, the slope protection comprises an ecological slope protection area a and a hardening area B, wherein the hardening area is in the form of a walking ladder in this embodiment, and has both the up-and-down auxiliary function. Typically, the hardened zone is a reinforced concrete casting structure.

The following describes the implementation and construction of the present utility model in detail with reference to fig. 1 to 10.

The slope protection main body engineering 00 is provided with a slope toe drainage ditch 01 at the bottom, a slope top drainage ditch 02 is arranged at the top, the slope toe drainage ditch and the slope top drainage ditch are both used for drainage, a groove cover plate 03 is arranged at a position where the slope is required to pass, the groove cover plate does not need to fully cover the slope toe drainage ditch, and the slope toe drainage ditch in the paragraph is of a common configuration. In some hydraulic engineering, the slope foot drainage ditch may not be configured, i.e., the slope protection slope foot may be a riverbed part of the riverway.

In this embodiment, an anchor rod assembly is added and the buckle is redesigned, specifically, referring to fig. 8 and 9, the buckle 10 includes a coupling portion 11 and a tension portion 12, wherein the coupling portion 11 has a rectangular outline, and conical protrusions 111 are respectively disposed on the upper and lower surfaces of the rectangular coupling portion, and the conical protrusions have a hollow structure or a solid structure, and have notches 112 for bisecting the conical protrusions, and the notches divide the conical protrusions into two so that the conical protrusions have a certain elasticity. And barbs 113 are arranged on the outer surfaces of the conical bulges, and the effective thorn length parts of the barbs are smaller than three centimeters so as to have enough holding force with the ecological bag non-woven fabric. The tension part is a structure extending from the connecting part to one side, and the two parts are integrally injection molded.

Further, the conical protrusions on the upper surface and the conical protrusions on the lower surface are not symmetrically arranged, but are arranged in a staggered mode, and the staggered arrangement is corresponding to staggered stacking between the ecological bags, so that the holding power is improved.

The distal end of the tension section 12 has a circular screw hole 121 for cooperation with the screw 20, in particular the screw hole has a smaller profile (relative to the profile of the coupling section) and this part is fastened directly to the body construction by means of the screw, in particular with reference to fig. 3, the screw 20 assembly is fastened to the body construction 00, after which the screw hole of the coupling buckle is threaded into the screw head and the coupling buckle is arranged in place and finally fastened with the fastening nut 21. After fastening, stacking of the upper layer of ecological bags 30 is performed, and after stacking, the attachment of the tie buckle is performed again.

In this step, the anchoring depth of the screw is designed according to the soil quality of the main engineering, and in general, the screw with the length not less than 20 cm is selected.

The so-called screw 20 is a large-sized screw formed by an engineering plastic injection molding process, and screw protrusions on the screw are integrally injection molded, and the height of the screw protrusions is not less than 2 cm, and referring to fig. 4, the screw has a sufficient holding force with the soil body.

The connecting buckles between the upper ecological bag and the lower ecological bag increase the connection between the ecological bags, the distribution and the position distribution of the connecting buckles are matched with structural mechanics, stress is transmitted to the connecting part and the ground fixing screw nails, a stable reinforcing and locking structure is formed at the ground point and the barb part, and local collapse is effectively avoided.

It should be noted that, based on the consideration of cost, the screw 20 may be selectively disposed or may be disposed in a full-coverage manner (one screw corresponds to one joint buckle), for example, a spaced arrangement, which may save screws.

Further, the above-mentioned ecological bag 30 (made of non-woven fabric) is provided with openings on the main surface, and the openings are formed by punching and fastening, for example, openings are formed on the upper surface of the ecological bag (also the sunny surface for plant growth) and fastening is performed to form a windowed structure 31, and the windowed structure 31 can be in a circular or square or rectangular form, which is beneficial to the breaking of seedlings in the bag, so that the problem that the conventional ecological bag has difficulty in penetrating the non-woven fabric is solved, and the rapid growth of plants is facilitated.

The construction of the galvanized wire 40 is further included, specifically, the galvanized wire is paved on a slope of a main engineering, two sides of the galvanized wire are respectively and fixedly connected with the corresponding hardening areas B, namely, two side ends of the galvanized wire are poured in the corresponding hardening areas in the construction stage to form the fixed connection, and after the fixed connection, the water and soil conservation force of the slope can be enhanced through the action of the galvanized wire. When the width direction or the length direction of the galvanized steel wire mesh is insufficient, the manner of overlapping each other and the use of the geotechnical ropes 41 for splicing can be adopted, so that the wide coverage can be satisfied.

The construction process of the slope protection project is as follows:

firstly, main engineering construction is carried out, lofting and gradient angle control are kept in the construction process, and a tamping tool is used for tamping.

Secondly, lime is scattered on a slope of a main engineering to form a scribing line, an ecological slope protection construction area and a hardening construction area are formed through the scribing line, then a galvanized steel wire mesh is paved in the ecological slope protection construction area, the end parts of two sides of the galvanized steel wire mesh are bent upwards by 90 degrees and fall into the hardening construction areas on two sides, after the completion, a formwork is supported on the hardening construction areas, according to the drawing of fig. 2, the hardening construction area is supported to form a stair molding formwork, concrete pouring is carried out, a stair is formed after hardening, wherein the width of the stair is 3 meters, and drainage ditches are arranged on the edges of the stair.

Step three, carrying out ecological bag stacking construction on the main engineering slope from bottom to top, specifically, firstly stacking three layers of ecological bags aligned up and down at the position of the slope toe, placing connecting buckles in front of adjacent ecological bags, then stacking the ecological bags in the direction of the slope and obliquely upwards, placing connecting buckles between every two ecological bags on the slope, and carrying out selective anchoring construction on individual connecting buckles according to the requirement, wherein the method specifically comprises the following steps: the screw assembly is fixed on the main engineering, then the screw hole of the connecting buckle is buckled on the top of the screw, the connecting buckle is arranged at a proper position, and finally the screw assembly is fastened by using a fastening screw. After fastening, stacking the upper ecological bags, pressing the spiral nails on the slope below after stacking, and then installing connecting buckles on the upper ecological bags.

The above examples are provided for illustrating the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and those skilled in the art should not depart from the spirit of the present utility model in all kinds of modifications and improvements that fall within the scope of the present utility model as defined in the appended claims.

Claims

1. The hydraulic engineering slope protection is characterized by comprising a main body engineering, an ecological slope protection area and a hardening area, wherein the main body engineering is a rammed entity, and the ecological slope protection area and the hardening area are arranged on a slope of the main body engineering at intervals along the horizontal and transverse directions; the ecological slope protection area consists of a steel wire mesh, backfill, a connecting buckle and an ecological bag which are sequentially arranged from bottom to top, wherein two sides of the steel wire mesh are respectively and fixedly connected with the corresponding hardening area, the connecting buckle formed by injection molding comprises a connecting part and a tension part, conical bulges connected with the upper ecological bag and the lower ecological bag are respectively arranged on the upper surface and the lower surface of the connecting part, the connecting part is provided with a notch for dividing the conical bulges into two parts, and barbs are arranged on the outer surfaces of the conical bulges; the tension part is provided with a screw hole, and screw nails penetrate through the screw hole and the steel wire mesh and fix the tension part on the main engineering.

2. The hydraulic engineering slope protection according to claim 1, wherein the conical protrusions on the upper surface and the conical protrusions on the lower surface of the connecting portion are arranged in a staggered mode.

3. The hydraulic engineering slope according to claim 1, wherein the anchoring depth of the screw is not less than 20 cm.

4. The hydraulic engineering slope protection according to claim 1, wherein the screw is an injection molding piece, and the height of the screw protrusion on the screw is not less than 2 cm.

5. The hydraulic engineering slope protection according to claim 1, wherein a windowing structure is arranged on the upper side surface of the ecological bag.

6. The hydraulic engineering slope protection according to claim 1, wherein the steel wire mesh is galvanized iron wire mesh, and when the width direction or the length direction of the galvanized steel wire mesh is insufficient, the steel wire mesh is spliced by adopting a mode of overlapping each other and using geotechnical ropes.

7. The hydraulic engineering slope according to claim 1, wherein the coupling portion has a rectangular profile and the tension portion has a herringbone profile.

8. The hydraulic engineering slope protection according to claim 1, wherein a toe drain is arranged at the bottom of the slope protection main body engineering, and a top drain is arranged at the top of the slope protection main body engineering.

9. The hydraulic engineering slope protection according to claim 1, wherein the hardened region is a reinforced concrete casting.

10. The hydraulic engineering slope protection according to claim 1, wherein the hardened region is a step ladder, and the ladder sides are provided with vertical drainage ditches.