CN210368841U

CN210368841U - Composite ecological revetment structure for town and village-level river channel

Info

Publication number: CN210368841U
Application number: CN201921080642.1U
Authority: CN
Inventors: 韩巧丽; 姜斌; 郑杰
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-04-21
Anticipated expiration: 2029-07-11

Abstract

The utility model belongs to the technical field of ecological revetment of town and village river channels, and discloses a compound ecological revetment structure of town and village river channels, which has the technical scheme that the ecological revetment structure comprises an inner slope, a vertical revetment and an ecological slope which are sequentially arranged from bottom to top along the inner side of the river channel, and the top elevation of the vertical revetment is positioned at the design normal water level of the river channel; the top elevation of the ecological slope is higher than the designed high water level of the river channel; the vertical revetment comprises an upper wall body and a lower bottom plate connected with the bottom end of the upper wall body, and the upper wall body is a net cage filled with bricks; the ecological slope is provided with a wetland, water purification plants are planted on the wetland, the top of the ecological slope is provided with a drainage channel, and sewage in the drainage channel is drained to the wetland. The composite ecological revetment structure for the riverway in the town and village level has the advantages of simple and economic structure, wide application range and convenience in construction, and can meet the functional requirements of ecology, flood control, sewage interception and the like.

Description

Composite ecological revetment structure for town and village-level river channel

Technical Field

The utility model relates to a town village level river course ecological revetment technical field relates to an ecological revetment structure.

Background

The town and village-level river channel refers to a river channel in a rural area, the peripheral area is generally agricultural production land or rural construction land, the plane form of the river channel is basically fixed, the basic functions of the river channel are flood control, flood drainage and water diversion, and in addition, according to the requirements of ecological management of the river channel, the ecological service function of the river channel is improved in ecological protection and recovery, water quality maintenance and improvement and recovery and construction of ecological landscape of the river channel. The river section forms are mainly classified into three types: rectangular section, trapezoidal section and compound section, three kinds of revetment forms that correspond are vertical type, slope type and combined type respectively. The combined revetment is a river channel section form limited by land, namely, the revetment comprises an inclined section and a vertical section and is in a step shape. At present, the vertical section revetment material of the composite ecological revetment comprises a gabion, an ecological bag, an ecological concrete block, a box type building block and the like.

The current composite gabion ecological revetment structure has the following 5 disadvantages:

1) the top elevation of the gabion revetment is arranged above the designed normal water level and is exposed at ordinary times.

2) The filling material in the gabion is pebbles or stones; the cost is high, and once the metal mesh outside the gabion is damaged, pebbles or stones collapse in bulk.

3) The foundation of the gabion net cage is a cast-in-place reinforced concrete structure, which brings inconvenience to construction.

4) Adopt ecological permeable material to protect between design normal water level and the design high water level and build or adopt the vegetation bank protection, only play the view effect, do not have favorable influence to the quality of water in river course.

5) The combined type section has the top elevation of a designed high water level and a safe superelevation, a pedestrian path is arranged at the top end of the section, and when a farmland is arranged outside the pedestrian path, a non-point source water body in the farmland is directly discharged into a river channel through a pipeline to pollute a water source.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a simple structure economy, application scope are extensive, construction convenience's ecological bank protection structure of town village level river course combined type can satisfy ecological, flood control, cut functional requirement such as dirty.

The basic technical scheme is as follows: the ecological bank protection structure comprises an inner slope, a vertical bank protection and an ecological slope which are sequentially arranged along the inner side of the river channel from bottom to top, and the top elevation of the vertical bank protection is positioned at the design normal water level of the river channel; the top elevation of the ecological slope is higher than the designed high water level of the river channel; the vertical revetment comprises an upper wall body and a lower bottom plate connected with the bottom end of the upper wall body, and the upper wall body is a net cage filled with bricks; the ecological slope is provided with a wetland, water purification plants are planted on the wetland, the top of the ecological slope is provided with a drainage channel, and sewage in the drainage channel is drained to the wetland.

Based on the technical characteristics, the lower bottom plate is a precast beam plate.

Based on the technical characteristics, the slope top of the ecological slope is provided with a pedestrian path, the drainage channel is positioned on the outer side of the pedestrian path, one side of the pedestrian path is the drainage channel, and the other side of the pedestrian path faces the river channel.

The utility model discloses an ecological shore protection of town village level river course combined type structure corresponds among the prior art combined type gabion ecological shore protection and has improved following several aspects:

1) the utility model discloses the ceiling elevation setting of well perpendicular shore protection can not see at ordinary times at design normal water level, has maintained the effect of the natural river course of not "exposing hard" of river course nature.

2) The filling material in the ecological net cage of the vertical revetment is brick blocks which can be made of waste materials of building houses and the like; the phenomenon that illegal buildings exist on the riverway in the implementation process of the current town and village-level riverway conforms to the requirements of town and village planning along with the improvement of the living standard of people, the phenomena of house removal and building are common, a large amount of building wastes such as bricks are generated, and the bricks can be used as filling materials of ecological net cages, so that the ecological net cage is economic and environment-friendly. Because perpendicular shore protection can not see at ordinary times, so, adopt the fragment of brick not to influence the natural effect in natural river course, in addition, even ecological net cage outer metal mesh destroys, the concrete function of piling up of fragment of brick itself, the structure has stability.

3) The utility model discloses the basis of perpendicular shore protection is prefabricated beam slab, for the cast-in-place basis of non-. The precast beam plate can be from a waste beam plate of a building house; the foundation adopts the precast beam plates, which can ensure the uniform settlement of the ecological net cage and has the characteristic of high construction speed, and if the waste building beam plates are utilized, the purposes of economy and environmental protection are achieved.

4) The utility model discloses a slope top on ecological slope of ecological bank protection structure sets up pedestrian path and drainage channel, and the drainage channel outside generally is the farmland, and drainage channel can regard as the farmland drainage, and the farmland non-point source water that drainage channel collects gets into the wetland and handles to the quality of water requirement of maintaining the river course water. In the investigation of town and village-level river channel non-point source pollution, the fact that non-point source water bodies of farmlands are directly discharged into the river channel is one of main reasons that the water quality of the river channel does not reach the standard, and through arranging a drainage channel at the top of an ecological slope, the non-point source water bodies of the farmlands are subjected to wetland water purification treatment before entering the river channel, so that the effect of maintaining the water quality of the river channel can be achieved.

To sum up, the utility model provides a town and village level river course combined type ecological revetment structure has characteristics such as economical rationality, convenient construction, ecological nature, has great popularization and application value and apparent economic benefits.

Drawings

Fig. 1 is the utility model discloses a town and village level river course combined type ecological revetment structure section sketch map.

The reference numbers illustrate: 1, river channel; 2, an inner slope; 3 vertical bank protection; 31 an upper wall; 32 a lower floor; 4, ecological slope; 5 designing a normal water level; 6 designing a high water level; 7 pedestrian paths; 8, a drainage ditch; 9 river bottom.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1: the ecological bank protection structure comprises an inner slope 2, a vertical bank protection 3 and an ecological slope 4 which are sequentially arranged from the river bottom 9 to the upper part along the inner side of the river channel 1. The top elevation of the vertical revetment 3 is positioned at the designed normal water level 5 of the river channel 1; the top level of the ecological slope 4 is higher than the designed high water level 6 of the river channel 1; the vertical revetment 3 comprises an upper wall 31 and a lower bottom plate 32, i.e. a foundation, connected to the bottom end of the upper wall 31; the lower bottom plate 32 is a precast beam plate; the upper wall 31 is an ecological net cage filled with bricks.

The ecological slope 4 can be provided with a wetland, water purification plants are planted on the wetland and arranged according to the content of nitrogen and phosphorus in water, and macropolysates, lentinus edodes, cress, canna and the like can be arranged. Be equipped with drainage channel on ecological slope 4's the top of slope, be escape canal 8 in this embodiment, also can be drainage pipe during the actual implementation, and the sewage of escape canal 8 is arranged to the wetland.

The top of slope of ecological slope 4 sets up people's footpath 7, and escape canal 8 is located the people's footpath 7 outside, promptly one side of people's footpath 7 is escape canal 8, the opposite side is towards river course 1.

The utility model discloses a construction order does: firstly, constructing a drainage ditch 8 to maintain the requirements of the running residents, then constructing a riverway cofferdam, simultaneously preparing a net cage of a lower bottom plate 32 and an upper wall body 31 of the vertical revetment 3 and filling bricks in the net cage, assembling the upper wall body 31 on site for later use, excavating ecological revetment earthwork during construction, laying the lower bottom plate 32 and placing the upper wall body 31, finishing an ecological slope 4 after the construction of the vertical revetment 3 is finished, constructing a top pedestrian path 7, and finally planting clean water plants on the ecological slope 4 in a proper season to form a wetland environment. The ecological revetment structure is "assembling" structure, and reasonable arrangement construction order can make the utility model discloses a structure is accomplished at one go, and the big engineering time that has shortened.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a town and village level river course combined type ecological revetment structure which characterized in that: the ecological bank protection structure comprises an inner slope (2), a vertical bank protection (3) and an ecological slope (4) which are sequentially arranged along the inner side of the river channel (1) from bottom to top, wherein the top elevation of the vertical bank protection (3) is positioned at a design normal water level (5) of the river channel (1); the top level of the ecological slope (4) is higher than the designed high water level (6) of the river channel (1); the vertical revetment (3) comprises an upper wall body (31) and a lower bottom plate (32) connected with the bottom end of the upper wall body (31), and the upper wall body (31) is a net cage filled with bricks; the ecological slope (4) is provided with a wetland, water purification plants are planted on the wetland, a drainage channel is arranged on the top of the ecological slope (4), and sewage of the drainage channel is drained to the wetland.

2. The composite ecological revetment structure for river channels in towns and villages as claimed in claim 1, wherein: the lower bottom plate (32) is a precast beam plate.

3. The composite ecological revetment structure for river channels in towns and villages as claimed in claim 1, wherein: the ecological slope is characterized in that a pedestrian path (7) is arranged at the top of the ecological slope (4), the drainage channel is located on the outer side of the pedestrian path (7), the drainage channel is arranged on one side of the pedestrian path (7), and the other side of the pedestrian path faces the river channel (1).