CN212200284U

CN212200284U - Ecological protective structure of flood-carrying river course second grade side slope

Info

Publication number: CN212200284U
Application number: CN202020776230.8U
Authority: CN
Inventors: 赵通阳; 冯光伟; 符强; 丁玉; 吕学梅; 王民; 黄伟; 彭建卫; 王德勇; 翟东辉; 范磊; 邰肇悦; 刘杰; 侯晓辉; 王鹏; 李孟洋; 汪鹏; 石琳
Original assignee: Henan Water and Power Engineering Consulting Co Ltd
Current assignee: Henan Water and Power Engineering Consulting Co Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-12-22
Anticipated expiration: 2030-05-12

Abstract

The utility model discloses a flood-carrying river secondary side slope ecological protection structure, which comprises a rectangular frame beam formed by encircling a first prefabricated member, a second prefabricated member and a third prefabricated member, wherein geogrids are laid on the inner side of the rectangular frame beam in an adaptive manner; the first prefabricated part is of a cross structure and consists of a first cross beam and a first longitudinal beam which are equal in length, the second prefabricated part is of a straight-line structure and consists of a second cross beam, and the third prefabricated part is of a T-shaped structure and consists of a third cross beam and a third longitudinal beam; the length of the third cross beam is equal to that of the first cross beam, connecting jacks are vertically formed in the two end faces of the first cross beam, the first longitudinal beam, the third cross beam and the outer end face of the third longitudinal beam, and plug-in connectors matched with the connecting jacks are vertically arranged on the two end faces of the second cross beam. The utility model has the advantages of simple structure, and convenient prefabrication and laying; the ecological landscape flood-fighting method is beneficial to slope stabilization, improves the flood scouring resistance and enriches the ecological landscape effect of the second-level slope of the flood-fighting river.

Description

Ecological protective structure of flood-carrying river course second grade side slope

Technical Field

The utility model belongs to the technical field of the river course bank protection technique and specifically relates to a flood-carrying river course second grade side slope ecological protection structure is related to.

Background

In current flood passage river regulation design, all adopt the slope protection of compound cross section for safe flood discharge, its common form of second grade slope has two kinds: one is to adopt a common soil slope without any protection, the vegetation on the slope surface is messy and has low coverage rate, and the slope is easy to be washed away during flood season flood running, so that more serious water and soil loss is caused, and even bank collapse, landslide and other phenomena occur; the other type is a hard protection type side slope which is made of concrete, masonry or interlocking blocks and the like and has the same side slope, although the surface of the hard protection type side slope is relatively smooth and resistant to scouring, the slope surface is relatively stiff in appearance, the ecological landscape effect is poor, and the hydrophilic space of residents is lacked.

Disclosure of Invention

The utility model aims to provide a simple structure, the concatenation is simple and convenient, the ecological view effectual ecological protective structure of flood passage second grade side slope.

In order to achieve the above purpose, the utility model can adopt the following technical proposal:

the flood-going river secondary side slope ecological protection structure comprises a rectangular lattice beam formed by encircling a first prefabricated member, a second prefabricated member and a third prefabricated member, and geogrids are laid on the inner side of the rectangular lattice beam in an adaptive mode; the first prefabricated part is of a cross structure and is formed by vertically crossing a first cross beam and a first longitudinal beam which are equal in length, the second prefabricated part is of a straight-line structure and is formed by a second cross beam, and the third prefabricated part is of a T-shaped structure and is formed by a third cross beam and a third longitudinal beam which is vertically fixed on one side of the third cross beam; the length of the third cross beam is equal to that of the first cross beam, connecting jacks are vertically formed in the two end faces of the first cross beam, the first longitudinal beam, the third cross beam and the outer end face of the third longitudinal beam, and connecting plugs matched with the connecting jacks are vertically arranged on the two end faces of the second cross beam.

The sections of the first cross beam, the first longitudinal beam, the second cross beam, the third cross beam and the third longitudinal beam are all rectangular structures with the size of 150mm multiplied by 200 mm; and chamfer angles of 15mm multiplied by 15mm are arranged at the long edges of the two sides of the upper surfaces of the first cross beam, the first longitudinal beam, the second cross beam, the third cross beam and the third longitudinal beam.

The aperture of the connecting jack is 20mm, the depth of the connecting jack is 80mm, the diameter of the plug connector is 18mm, the length of the plug connector is 75mm, and anti-skid lines used for increasing friction force are arranged on the outer surface of the plug connector.

The connecting jacks are formed in pairs on two end faces of the first cross beam, the first longitudinal beam and the third cross beam and on the outer end face of the third longitudinal beam, and the center distance between every two connecting jacks is 60 mm; the plug connectors are arranged on two end faces of the second cross beam in pairs, and the center distance between every two plug connectors is 60 mm.

The utility model has the advantages of simple structure, the prefabrication processing and lay portably. The first prefabricated member, the second prefabricated member and the third prefabricated member can be easily spliced to form a rectangular frame beam, and the rectangular frame beam is laid on a secondary side slope of a flood-going river channel, so that the rectangular frame beam is ensured to be stable while the on-site quick assembly is realized, the stability of the side slope is facilitated, the flood erosion resistance is improved, the construction progress is accelerated, and the construction period is shortened; in addition, the geogrids are laid on the inner sides of the rectangular frame beams in an adaptive mode, so that the planting soil can be conveniently backfilled and planted for greening, the side slope soil body can be kept stable under the enclosing and protecting effects of the rectangular frame beams, the ecological landscape effect of the second-level side slope of the flood channel is enriched, and water and soil loss can be effectively prevented.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the first preform of fig. 1.

Fig. 3 is a bottom view of fig. 2.

Fig. 4 is a sectional view taken along line a-a in fig. 2.

Fig. 5 is a schematic view of the structure of the second preform of fig. 1.

FIG. 6 is a schematic structural view of the third preform of FIG. 1.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are implemented on the premise of the technical solution of the present invention, and the detailed embodiments and the specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1, the ecological protection structure for the second-level side slope of the flood-going river comprises a rectangular frame beam formed by splicing and enclosing a first prefabricated member, a second prefabricated member and a third prefabricated member; geogrid 1 has been laid to the inboard adaptation of rectangle frame gridwork roof beam, and when actually laying, geogrid 1's lower surface flushes with the lower surface of rectangle frame gridwork roof beam, and planting soil is backfilled to the top and grass planting afforestation is carried out, enriches the ecological landscape effect of flood passage second grade side slope, prevents soil erosion and water loss.

Specifically, as shown in fig. 2, 5 and 6, the first prefabricated member is a cross-shaped structure and is formed by vertically crossing a first cross beam 2 and a first longitudinal beam 3, and the lengths of the first cross beam 2 and the first longitudinal beam 3 are equal; the second prefabricated part is in a straight-line structure and is formed by a second cross beam 4; the third prefabricated member is of a T-shaped structure and is composed of a third cross beam 5 and a third longitudinal beam 6 vertically fixed on one side of the third cross beam, wherein the length of the third cross beam 5 is equal to that of the first cross beam 2.

During actual prefabrication processing, a first cross beam 2 and a first longitudinal beam 3 which form a first prefabricated part are of an integrally formed structure, a second cross beam 4 which form a second prefabricated part is of an integrally formed structure, and a third cross beam 5 and a third longitudinal beam 6 which form a third prefabricated part are of an integrally formed structure and are both prefabricated by reinforced concrete; as shown in fig. 4, the reinforcing steel bars penetrating through the first cross beam 2, the first longitudinal beam 3, the second cross beam 4, the third cross beam 5 and the third longitudinal beam 6 can adopt four HRB400 type deformed reinforcing steel bars 7 with phi 14mm arranged in parallel, and a plurality of HPB235 type stirrups 8 with phi 8mm are hooped outside the deformed reinforcing steel bars 7. The cross sections of the first cross beam 2, the first longitudinal beam 3, the second cross beam 4, the third cross beam 5 and the third longitudinal beam 6 are both of a rectangular structure with the size of 150mm multiplied by 200mm, the lengths of the first cross beam 2, the first longitudinal beam 3 and the third cross beam 5 are both 750mm, the length of the third longitudinal beam 6 is 300mm, and the length of the second cross beam 4 is 1400mm, so that the length of the first prefabricated member with the cross structure is 750mm and 750mm, the length of the second prefabricated member with the straight-line structure is 1400mm, the length of the third prefabricated member with the T-shaped structure is 750mm and 450mm, two first prefabricated members, four second prefabricated members and two third prefabricated members are guaranteed, or a square frame with the size of 2m multiplied by 2m is just arranged on the inner side of the rectangular frame beam surrounded by the four first prefabricated members and the four second prefabricated members, and the stability and the attractiveness of the rectangular frame beam are. In addition, in order to avoid the corners of the upper surface of the rectangular lattice beam laid on the second-level side slope of the flood channel to be too sharp, 15mm × 15mm chamfers are arranged at the long edges of the two sides of the upper surface of the first cross beam 2, the first longitudinal beam 3, the second cross beam 4, the third cross beam 5 and the third longitudinal beam 6.

In order to facilitate splicing and laying, connecting jacks 9 are vertically formed in the two end faces of the first cross beam 2, the first longitudinal beam 3 and the third cross beam 5 and the outer end face of the third longitudinal beam 6, and plug-in connectors 10 matched with the connecting jacks 9 are vertically arranged on the two end faces of the second cross beam 4; the aperture of the connecting jack 9 is 20mm, the depth of the connecting jack is 80mm, the diameter of the plug-in connector 10 is 18mm, the length of the plug-in connector 10 is 75mm, anti-skid lines for increasing friction force are arranged on the outer surface of the plug-in connector 10, during actual prefabrication processing, HRB400 type threaded reinforcing steel bar heads can be directly embedded at two ends of the second cross beam 4, and the part extending out of the second cross beam 4 can be used as the plug-in connector 10. In addition, in order to avoid the phenomenon of overturning when the second prefabricated member is subjected to scouring force in the horizontal direction or the direction along the slope, as shown in fig. 3, the connection jacks 9 are respectively formed in pairs on the two end faces of the first cross beam 2, the first longitudinal beam 3, the third cross beam 5 and the outer end face of the third longitudinal beam 6, and the center distance between the two connection jacks 9 of each pair is 60 mm; similarly, in order to be matched with the connection jacks 9 arranged in pairs, the plugs 10 should also be arranged in pairs on the two end faces of the second beam 4, and the center-to-center distance between each pair of plugs 10 is also 60 mm.

When in-situ laying, firstly, leveling and compacting the slope surface of the secondary side slope of the flood-carrying river; then, splicing and laying the first prefabricated member, the second prefabricated member and the third prefabricated member along the slope surface of the secondary side slope to form a rectangular frame beam, paying attention to that the third prefabricated member is only used at the edge of the secondary side slope, namely only the top of the bank, the toe of the secondary side slope and the edges of the left end and the right end of the secondary side slope are matched and spliced by using the third prefabricated member, and the rest parts are spliced by only four first prefabricated members and four second prefabricated members; after the rectangular lattice beams are assembled, a plurality of square frames which are uniformly arranged are formed on the slope surface, then geogrids 1 can be laid in the frames in a matching mode, the lower surfaces of the geogrids 1 are tightly attached to the slope surface of the secondary side slope and are flush with the lower surfaces of the rectangular lattice beams, planting soil is backfilled on the geogrids 1 and compacted, and the height of the planting soil is flush with the height of the rectangular lattice beams; and then, grass seeds with developed root systems and suitable for local production can be selected for planting grass and greening in the square frame on the inner side of the rectangular lattice beam, so that the field laying of the flood-going river channel secondary side slope ecological protection structure is completed, the field quick assembly is realized, the construction progress is accelerated, the side slope stability is ensured, the flood erosion resistance is improved, the ecological landscape effect of the flood-going river channel secondary side slope is enriched, and the water and soil loss is effectively prevented.

Claims

1. The utility model provides an ecological protective structure of flood-carrying river course second grade side slope which characterized in that: the geogrid is laid on the inner side of the rectangular lattice beam in a matched mode;

the first prefabricated member is of a cross structure and is formed by vertically crossing a first cross beam and a first longitudinal beam which are equal in length;

the second prefabricated part is of a straight-line structure and is formed by a second cross beam; and

the third prefabricated part is of a T-shaped structure and consists of a third cross beam and a third longitudinal beam vertically fixed on one side of the third cross beam;

the length of the third cross beam is equal to that of the first cross beam, connecting jacks are vertically formed in the two end faces of the first cross beam, the first longitudinal beam, the third cross beam and the outer end face of the third longitudinal beam, and connecting plugs matched with the connecting jacks are vertically arranged on the two end faces of the second cross beam.

2. The ecological protection structure of secondary side slope of flood-discharging riverway according to claim 1, characterized in that: the sections of the first cross beam, the first longitudinal beam, the second cross beam, the third cross beam and the third longitudinal beam are all rectangular structures with the size of 150mm multiplied by 200 mm; and chamfer angles of 15mm multiplied by 15mm are arranged at the long edges of the two sides of the upper surfaces of the first cross beam, the first longitudinal beam, the second cross beam, the third cross beam and the third longitudinal beam.

3. The ecological protection structure of secondary side slope of flood-discharging riverway according to claim 1, characterized in that: the aperture of the connecting jack is 20mm, the depth of the connecting jack is 80mm, the diameter of the plug connector is 18mm, the length of the plug connector is 75mm, and anti-skid lines used for increasing friction force are arranged on the outer surface of the plug connector.

4. The ecological protection structure of secondary side slope of flood-discharging riverway according to claim 1 or 3, characterized in that: the connecting jacks are formed in pairs on two end faces of the first cross beam, the first longitudinal beam and the third cross beam and on the outer end face of the third longitudinal beam, and the center distance between every two connecting jacks is 60 mm; the plug connectors are arranged on two end faces of the second cross beam in pairs, and the center distance between every two plug connectors is 60 mm.