CN113668578B

CN113668578B - Vegetation concrete ecological slope protection construction method

Info

Publication number: CN113668578B
Application number: CN202111091343.XA
Authority: CN
Inventors: 王巍; 倪思智; 叶博威; 陈小华; 吴裕林; 李达伟; 刘德庆; 王洪涛; 马程
Original assignee: Shenzhen Yongheng Engineering Development Co Ltd
Current assignee: Shenzhen Yongheng Engineering Development Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2023-01-10
Anticipated expiration: 2041-09-17
Also published as: CN113668578A

Abstract

The application relates to a vegetation concrete ecological slope protection construction method, which mainly comprises the following steps: s1: cleaning the slope surface and cleaning sundries on the slope surface of the side slope; s2: installing anchor rods, and installing a plurality of anchor rods on the side slope; s3: laying a nutrient substrate, and laying a nutrient substrate for providing nutrients for vegetation growth on the side slope; s4: laying iron wire nets, covering the slope with the iron wire nets, and binding the iron wire nets with the anchor rods so as to enable gaps to be reserved between the iron wires and the nutrient substrates; s5: paving a base material, namely spraying an ecological concrete base material on the slope, wherein the ecological concrete base material does not contain grass seeds capable of growing into vegetation, and the ecological concrete base material forms a base layer after being cured; s6: paving a surface material, spraying an ecological concrete surface material on the base layer, forming the surface layer after the ecological concrete surface material is solidified, wherein the ecological concrete base material contains grass seeds which can grow into vegetation. This application has the effect that improves the survival rate of grass seeds.

Description

Vegetation concrete ecological slope protection construction method

Technical Field

The application relates to the field of side slope protection, in particular to a vegetation concrete ecological slope protection construction method.

Background

Ecological bank protection is the structure of supporting slope or side slope. The vegetation can effectively relieve the water and soil loss of the side slope. Now, construction of slope protection and planting of vegetation are facilitated, and ecological soil mixing breeding is achieved.

The ecological concrete is also called porous planting concrete and greening concrete, and is a novel slope protection material which can well combine engineering protection and ecological restoration. The main body of the plant growth regulator takes aggregate with specific particle size as a supporting framework, utilizes the ecological cementing material to replace the conventional cement, has a certain pore structure after being solidified, and the pores can provide conditions for the penetrating growth of plants. And the ecological concrete also has the strength equivalent to that of common concrete. The ecological concrete has low alkalinity, is suitable for plant growth, is used for protecting and building slope surfaces, and can realize the integration of safety protection and ecological greening under proper conditions.

The existing ecological concrete slope protection process firstly cleans the slope; then, anchor rods are driven into the slope at intervals, and then the wire netting is laid. Then the concrete spraying machine is used for spraying and planting. Grass seeds are also in the ecological coagulation of spray planting. The root system of the grass seeds can penetrate through the ecological concrete pores and prick into the soil of the side slope.

In view of the above-mentioned related technologies, the inventor believes that the grass seeds are mixed in the ecological concrete, and some grass seeds are shallow and deep, which causes the defect that it is difficult for the stems and leaves of the deeper grass seeds to drill the ecological concrete.

Disclosure of Invention

In order to alleviate the big problem of the stem leaf of deeper grass kind drills out the ecological concrete degree of difficulty, this application provides a vegetation concrete ecological bank protection construction method.

The application provides a vegetation concrete ecological slope protection construction method, adopts following technical scheme:

a vegetation concrete ecological slope protection construction method mainly comprises the following steps:

s1: cleaning the slope surface and cleaning sundries on the slope surface of the side slope;

s2: installing anchor rods, and installing a plurality of anchor rods on the side slope;

s3: laying a nutrient substrate, and laying a nutrient substrate for providing nutrients for vegetation growth on the side slope;

s4: laying iron wire nets, covering the side slopes with the iron wire nets, and binding the iron wire nets with anchor rods to enable gaps to be reserved between the iron wires and the nutrient substrates;

s5: paving a base material, namely spraying an ecological concrete base material on the slope, wherein the ecological concrete base material does not contain grass seeds capable of growing into vegetation, and the ecological concrete base material forms a base layer after being cured;

s6: paving a surface material, spraying an ecological concrete surface material on the base layer, forming the surface layer after the ecological concrete surface material is solidified, wherein the ecological concrete base material contains grass seeds which can grow into vegetation.

Through adopting above-mentioned technical scheme, do not contain the grass seeds that can grow for the vegetation in the basic unit, and only contain the grass seeds that can grow out the vegetation in the surface course for the grass seeds all concentrate on the bank protection and are close to one side on surface, and the stem leaf of grass seeds can be more light roll out ecological concrete, is favorable to improving the survival rate of grass seeds.

Optionally, in S3, the nutrition base material is contained in an ecological bag, and the ecological bag is laid on the slope and has a flush surface.

By adopting the technical scheme, the nutrient substrate is filled in the ecological bag, so that the ecological bag is convenient to transport and lay; it is also beneficial to alleviate the problem of the passage of the nutrient substrate under the action of the water flow.

Optionally, in S3, the nutrition substrate is installed in the plant growing rod, and in S3, a plant growing hole for placing the plant growing rod is formed on the slope surface.

Through adopting above-mentioned technical scheme, the plant growing stick is buried underground in the plant growing hole, effectively does benefit to the problem of alleviating the loss of nutrition substrate under the effect of rivers, and the slow release of nutrition substrate is in peripheral soil in the plant growing stick, is favorable to continuously improving the fertility of slope soil, helps the long-term flourishing of bank protection vegetation.

Optionally, the ecological concrete base material contains inactivated grass seeds.

By adopting the technical scheme, the inactivated grass seeds decay after a period of time and can be used as nutrients for the vegetation, so that the fertility of the base layer is improved, and the growth of the vegetation on the surface layer is further facilitated; the cavity that produces after the grass seed of deactivation rots for the structure of surface course and basic unit is more unanimous, is favorable to the grass seed root to pass the basic unit more, promotes the survival rate of surface course grass seed.

Optionally, the method further comprises S7, covering with non-woven fabrics, and covering with non-woven fabrics on the ecological concrete surface layer.

Through adopting above-mentioned technical scheme, it is directly shone by sunshine to reduce ecological concrete surface course, is favorable to maintaining the temperature stability of ecological concrete surface, provides more favorable environment for grass seeds to sprout.

Optionally, the method further includes S8: and (5) maintaining, namely sprinkling irrigation and sprinkling water to the surface layer and spraying the liquid medicine for preventing insect damage.

Through adopting above-mentioned technical scheme, for the grass seeds provides water to reduce the plant diseases and insect pests, further promote the survival rate of grass seeds and vegetation.

Optionally, the wire netting is provided with a plurality of fender nets that are horizontal setting along side slope slant decurrent direction interval, keep off the net and be perpendicular setting with the wire netting, keep off the partial one side that is close to the side slope of wire netting that is located of net, another one side that is located the wire netting and deviates from the side slope.

By adopting the technical scheme, the ecological concrete is supported by the separation net, so that the problem that the ecological concrete sprayed on the side slope falls downwards along the slope of the side slope is solved, and the thickness of the ecological concrete is more uniform.

Optionally, it connects in the wire netting to separate the fender net rotation, a plurality of stoppers of wire netting fixedly connected with, when separating the fender net and rotate to the perpendicular to wire netting it keeps off net and stopper conflict, the conflict point that separates fender net and stopper is located and separates the part that is close to the side slope on the fender net and one side that deviates from the side slope top and is located and separates the part that keeps off the side slope and one side towards the side slope top that keeps off the net and be located.

Through adopting above-mentioned technical scheme, will separate and keep off the net and rotate to the wire netting parallel, then can the rolling with the wire netting be convenient for transport. After laying the wire netting, rotate and separate the fender until separating and keeping off the net and contradict with the stopper. The blocking net is rotatably connected to the wire net and is convenient for accommodating the wire net.

Optionally, the mass of the part of the separating and blocking net on one side of the wire netting close to the side slope is greater than the mass of the part of the separating and blocking net on one side of the wire netting away from the side slope.

Through adopting above-mentioned technical scheme, lay the wire netting after, under the action of gravity, separate and keep off the automatic rotation of net and be vertical state with the wire netting, it is more convenient to operate.

Optionally, the blocking net comprises two connecting pieces, and the connecting pieces are respectively located on two opposite sides of the iron wire net;

the connecting pieces comprise grid parts and hinged steel wires, the hinged steel wires are multiple and are arranged at intervals along the length direction of the grid parts, the hinged steel wires are bent into a circular ring shape, and openings for clamping iron wires on the iron wire nets are reserved;

the connecting piece also comprises a connecting steel wire fixedly connected with the grid part, one end of the connecting steel wire is fixedly connected with the grid part, the other end of the connecting steel wire extends to one end far away from the grid part, and the connecting steel wire is positioned on two opposite sides of the grid part;

when two of the connecting members are connected with the wire netting, the connecting wires of the connecting members pass through the wire netting and abut against the side wall of the mesh portion of the other connecting member.

By adopting the technical scheme, the connecting piece can be conveniently arranged on the wire mesh. Utilize the connecting wire to contradict in the lateral wall of the net portion of another connecting piece for two connecting pieces can rotate in step, and it is more convenient to operate.

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

1. the laid ecological concrete is provided with a base layer and a surface layer, wherein the base layer does not contain grass seeds capable of growing into vegetation, only the surface layer contains grass seeds capable of growing vegetation, the grass seeds are all concentrated on one side, close to the surface, of the revetment, stems and leaves of the grass seeds can be easily transferred out of the ecological concrete, and the survival rate of the grass seeds is improved;

2. the ecological concrete base material contains inactivated grass seeds, so that on one hand, the fertility of the base layer is improved, and the growth of surface vegetation is facilitated; on the other hand, the cavity that produces after the grass species that inactivates floods for the structure of surface course and basic unit is more unanimous, is favorable to the grass species root to pass the basic unit more.

3. Lay the non-woven fabrics and cover, spray irrigation the watering to the surface course, when carrying out the maintenance to the concrete, all help maintaining the temperature stability of ecological concrete face, sprout for the grass and provide more favorable environment.

Drawings

Fig. 1 is a cross-sectional view of the wire netting of example 2 of the present application.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a perspective view for showing a barrier net according to embodiment 2 of the present application.

Description of the reference numerals:

100. a wire mesh; 101. a limiting block; 110. a barrier net; 111. an upper connecting piece; 112. a lower connecting piece; 113. a mesh part; 114. hinging a steel wire; 115. and connecting the steel wires.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a vegetation concrete ecological slope protection construction method.

Example 1

A construction method of vegetation concrete ecological slope protection mainly comprises the following steps:

s1: clearing the slope surface, shaping the slope, leveling soil bags, filling pits and enabling the surface of the slope to be smoother. Then the impurities on the slope surface of the side slope, such as dangerous stones or scum, are removed from top to bottom.

S2: and (5) mounting an anchor rod, and rotating the hole at the preset position of the side slope by using an anchor rod machine to form an anchor rod hole. Then the anchor rod is inserted into the anchor rod hole, and the tail part of the anchor rod is left outside the anchor rod hole. And after the position of the anchor rod is stabilized, cement paste is poured into the anchor rod hole to fix the anchor rod.

In the embodiment, the anchor rods are made of deformed steel bars with the diameter phi of 14mm, the length of the anchor rods is larger than 85cm, and the distance between the anchor rods is 1m. The anchor is exposed for 10cm for subsequent binding of the wire mesh 100.

S3: and laying a nutrient substrate, wherein the nutrient substrate is used for providing enough nutrients for the growth of the vegetation. The nutrient substrate comprises sandy loam, organic materials, ecological modifiers, organic fertilizers and compound fertilizers. And (3) uniformly mixing the nutrient substrates, and then filling the mixture into a plant growing rod and/or an ecological bag. And (3) arranging the plant growing rods and/or the ecological bags on the side slope.

Placing a plant growing rod: firstly, a plurality of plant growing holes are arranged on the slope surface of the side slope. The plant growing holes are arranged in a rectangular array. And placing the plant growing rod in the plant growing hole.

Laying an ecological bag: the ecological bags are flatly laid on the slope surface, and the surface of the ecological bags is kept level.

If the plant growing rod and the ecological bag are required to be installed, the plant growing rod is installed firstly, and then the ecological bag is laid.

S4: laying the wire netting 100, wherein one end of the wire netting 100 is fixedly connected to the top of the slope and then laid down from the top of the slope. At least more than 1m of length is left on the top of the slope. In this example, a 14 gauge galvanized wire mesh 100 with a mesh size of 6cm x 6cm was used as the wire mesh 100.

And binding the wire mesh 100 with the anchor rod, binding the wire mesh 100 at a position 4-6 cm away from the slope surface of the anchor rod, and upwards bending and hooking the anchor nail. On one hand, the anchor rod fixes the wire netting 100 to a column, and is mainly used for preventing the wire netting 100 from sliding towards the bottom of a slope; on the other hand, the distance between the wire netting 100 and the slope surface of the side slope is controlled, so that the wire netting 100 is completely wrapped by the ecological concrete when the ecological concrete is sprayed in the subsequent process.

S5: laying base materials, spraying ecological concrete base materials on the slope, forming a base layer after the ecological concrete base materials are solidified, and enabling the base layer to be located below the wire netting 100 and to be in contact with the wire netting 100.

In this embodiment, the ecological concrete base material comprises planting soil, cement, organic materials and a CBS ecological modifier.

Wherein the planting soil is sandy loam and planting soil, the sand content is within 20 percent, the water content is within 15 percent, and the planting soil is crushed by a forced soil screening machine for later use. The cement is P.O42.5 ordinary portland cement. The organic material is prepared from rice husk, rice bran, straw, coconut husk and the like.

S6: paving a surface material, and spraying the ecological concrete surface material on the base layer 2 hours after spraying the ecological concrete base material. The ecological concrete surface material forms a surface layer after being cured.

The ecological concrete surface material and the ecological concrete base material have basically the same components, and the only difference is that the ecological concrete surface material contains grass seeds which can grow into vegetation.

S7: and covering the ecological concrete surface layer with non-woven fabrics. The non-woven fabric can effectively relieve the ecological concrete surface layer from being directly irradiated by sunlight, is favorable for maintaining the temperature stability of the ecological concrete surface, and provides a more favorable environment for grass seeds to sprout.

S8: the maintenance is sprayed the sprinkling to the surface course, for the grass seeds provides water to reduce the plant diseases and insect pests, further promote the survival rate of grass seeds and vegetation. Regularly spraying the liquid medicine for preventing insect damage.

The implementation principle of the vegetation concrete ecological slope protection construction method is as follows: the surface layer contains grass seeds, and after the grass seeds germinate, the root systems of the grass seeds penetrate through the pores of the base layer and are rooted in the ecological bag. The stem leaves of the grass seeds after germination penetrate through the pores of the concrete surface layer of the vegetation, so that the vegetation is formed.

The base layer contains no grass seeds capable of growing into vegetation, and the surface layer contains grass seeds capable of growing vegetation. All grass seeds are concentrated on one side of the slope protection close to the surface, and stems and leaves of the grass seeds can be easily transferred out of the ecological concrete, so that the survival rate of the grass seeds is improved.

Example 2

Referring to fig. 1, the present embodiment is different from embodiment 1 in that: the ecological concrete base material contains inactivated grass seeds. The inactivated grass seeds can not grow into the vegetation, but the inactivated grass seeds decay after a period of time and can be used as nutrients of the vegetation to improve the fertility of the base layer. Partial nutrient supply can be obtained when the root system of the grass seeds passes through the base layer; and the cavity that produces after the grass seed of deactivation rots for the structure of surface course and basic unit is more unanimous, is favorable to the grass seed root to pass the basic unit more, promotes the survival rate of surface course grass seed.

When the ecological concrete is just sprayed on the side slope, the ecological concrete has the tendency of collapsing towards the bottom of the side slope under the action of gravity, so that the thickness of the ecological concrete on the upper part of the side slope structure can not meet the requirement, and the protection effect of the side slope is further influenced.

In order to alleviate the above technical problem, the wire netting 100 is provided with a plurality of barrier nets 110 arranged in a transverse direction at intervals along the direction of the slope. The barrier 110 is vertically inserted through the wire 100 so that the barrier 110 is partially positioned on the upper side of the wire 100 and partially positioned on the lower side of the wire 100. The blocking net 110 divides the ecological concrete into a plurality of parts and supports the ecological concrete, so that the problem that the ecological concrete sprayed on the side slope falls downwards along the slope of the side slope is solved, and the thickness of the ecological concrete is more uniform.

Referring to fig. 1, each spacer 110 includes two connecting members positioned on opposite sides of the wire 100, wherein the connecting member positioned above the wire 100 is an upper connecting member 111 and the connecting member positioned below the wire 100 is a lower connecting member 112.

Referring to fig. 1 and 2, the connection members each include a mesh portion 113 and a hinge wire 114. The mesh portion 113 is a long metal mesh. The hinge wires 114 are welded and fixedly connected to the mesh part 113 at a side thereof adjacent to the wire netting 100. The hinge wires 114 are plural and arranged at intervals along the length direction of the mesh part 113. The hinge wire 114 is bent in a circular shape and leaves an opening for the wire to be snapped into on the wire 100. The wires of the wire 100 are snapped into the hinge wires 114, so that the connecting element is connected to the wire 100 and can be rotated relative to the wire 100.

Referring to fig. 3, the connector further includes a connecting wire 115 fixedly connected to the mesh part 113. One end of the connecting wire 115 is fixedly connected to the mesh part 113, and the other end extends to the end far away from the mesh part 113. The connecting steel wires 115 are positioned on two opposite sides of the grid part 113, and when the upper connecting piece 111 and the lower connecting piece 112 are connected to the wire netting 100, the connecting steel wires 115 of the upper connecting piece 111 penetrate through the wire netting 100 and abut against the side wall of the grid part 113 of the lower connecting piece 112; at the same time, the connecting wire 115 of the lower connecting member 112 passes through the wire netting 100 and abuts against the side wall of the mesh portion 113 of the upper connecting member 111, and is rotated from both connecting members in synchronization.

Referring to fig. 1, wire netting 100 both sides that carry on the back mutually all fixedly connected with stopper 101, two stoppers 101 are axisymmetric setting with keeping off 110 rotation central axes of net. The limiting block 101 at the upper side of the wire netting 100 is butted against one surface of the upper connecting piece 111 facing the top of the slope. The stopper 101 at the lower side of the wire 100 abuts against the surface of the lower connecting member 112 facing the slope bottom. When the barrier net 110 is abutted against the stopper, the barrier net 110 is perpendicular to the wire 100.

Referring to fig. 1, the barrier net 110 is rotated to be parallel to the wire 100, and at this time, the wire 100 can be wound up, thereby facilitating transportation. After the wire netting 100 is laid, the blocking net 110 is rotated until the blocking net 110 abuts against the limiting block 101.

Referring to fig. 1, the area of the mesh part 113 of the lower connection member 112 is greater than the area of the mesh part 113 of the upper connection member 111, so that the mass of the mesh part 113 of the lower connection member 112 is greater than the mass of the mesh part 113 of the upper connection member 111. After the wire netting 100 is laid, under the action of gravity, the blocking net 110 automatically rotates to be vertical to the wire netting 100, and the operation is more convenient.

The implementation principle of the vegetation concrete ecological slope protection construction method of the embodiment is as follows: after the wire netting 100 is laid, the barrier net 110 is automatically rotated to be perpendicular to the wire netting 100 by gravity.

When spraying the ecological concrete base material, the lower connecting piece 112 of the blocking net 110 supports the ecological concrete base material, so that the problem that the ecological concrete just sprayed on the side slope collapses downwards along the slope of the side slope is solved, and the thickness of the ecological concrete is more uniform.

When the ecological concrete surface material is sprayed, the upper connecting piece 111 of the blocking net 110 supports the ecological concrete surface material, so that the problem that the ecological concrete which is just sprayed on the side slope collapses downwards along the slope of the side slope is solved, and the thickness of the ecological concrete is more uniform.

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. A vegetation concrete ecological slope protection construction method is characterized in that: the method mainly comprises the following steps:

s4: laying an iron wire net (100), covering the slope with the iron wire net (100), and binding the iron wire net (100) with the anchor rod to enable a gap to be reserved between the iron wire and the nutrient substrate;

s6: paving surface materials, namely spraying ecological concrete surface materials on a base layer, wherein the ecological concrete surface materials form a surface layer after being cured, and the ecological concrete base materials contain grass seeds which can grow into vegetation;

the wire netting (100) is provided with a plurality of transversely arranged baffle nets (110) at intervals along the direction of the slope inclining downwards, the baffle nets (110) are perpendicular to the wire netting (100), part of the baffle nets (110) is positioned on one side of the wire netting (100) close to the slope, and the other part of the baffle nets is positioned on one side of the wire netting (100) away from the slope;

the blocking net (110) is rotatably connected to the wire netting (100), the wire netting (100) is fixedly connected with a plurality of limiting blocks (101), when the blocking net (110) rotates to be perpendicular to the wire netting (100), the blocking net (110) is abutted against the limiting blocks (101), and abutting points of the blocking net (110) and the limiting blocks (101) are located on the blocking net (110) close to a side slope and on one side away from the top of the side slope, and are located on the blocking net (110) on one side away from the side slope and facing the top of the side slope;

the mass of the part, close to the side slope, of the wire netting (100), of the blocking net (110) is greater than that of the part, away from the side slope, of the wire netting (100), of the blocking net (110);

the ecological concrete base material contains inactivated grass seeds;

the blocking net (110) comprises two connecting pieces which are respectively positioned at two opposite sides of the wire netting (100);

the connecting pieces comprise grid parts (113) and hinged steel wires (114), the hinged steel wires (114) are arranged at intervals along the length direction of the grid parts (113), the hinged steel wires (114) are bent to be circular, and openings for clamping iron wires on the iron wire net (100) are reserved;

the connecting piece also comprises a connecting steel wire (115) fixedly connected with the grid part (113), one end of the connecting steel wire (115) is fixedly connected with the grid part (113), the other end of the connecting steel wire extends towards one end far away from the grid part (113), and the connecting steel wire (115) is positioned at two opposite sides of the grid part (113);

when two of the connectors are connected to the wire netting (100), the connecting wires (115) of the connectors pass through the wire netting (100) and abut against the side walls of the mesh portion (113) of the other connector.

2. The vegetation concrete ecological slope protection construction method of claim 1, wherein: and S3, the nutrition base material is filled in ecological bags, and the ecological bags are laid on the slope and have flush surfaces.

3. The vegetation concrete ecological slope protection construction method of claim 1, wherein: in S3, the nutrition base material is arranged in the plant growing rod, and in S3, plant growing holes for placing the plant growing rod are formed in the slope surface.

4. The vegetation concrete ecological slope protection construction method as claimed in claim 1, wherein: and S7, covering with non-woven fabrics, and covering the ecological concrete surface layer with non-woven fabrics.

5. The vegetation concrete ecological slope protection construction method of claim 1, wherein: further comprising S8: and (5) maintaining, namely sprinkling irrigation and sprinkling water to the surface layer and spraying the liquid medicine for preventing insect damage.