CN207727508U - A kind of topological training wall of flexibility for beheaded river running water - Google Patents

Abstract

The utility model discloses a flexible topology diversion wall for the running water of the Duantou River, which comprises a positioning pile, a flexible anti-seepage membrane, a float and a sinker; the sinker and the float are respectively connected into a channeling shape, and the sinker is fixed or channeled The lower part of the positioning pile is socketed, and the float is socketed on the upper part of the positioning pile; the sinker is fixed on the bottom of the flexible anti-seepage membrane, and the float is fixed on the top of the flexible anti-seepage membrane to form a flexible wall. When in use, set one end of the wall at a distance of about 1/2 the width of the Duantou River from the end of the Duantou River, and the other end is connected to the bank wall on the other side of the main river; the height of the wall is higher than that of the river. maximum water level. The wall changes the topological relationship between the main channel and the Duantou River on one side, so that the water flows on a topological structure of a through-line, and plays the role of guiding the water flow in the Duantou River. The utility model adopts a flexible structural wall, which is very convenient to implement, has good effect of connecting running water, saves engineering investment, short construction period, and low operation and maintenance cost.

Description

A flexible topological diversion wall for running water in Duantou River

technical field

The utility model relates to a flexible topological diversion wall for the running water of the Duantou River, which is particularly suitable for connecting the running water of the Duantou River in urban built-up areas.

Background technique

The task of urban river water environment management is very heavy, and connecting the Duantou River to achieve smooth flow of water is one of the extremely important governance measures. Before the utility model was made, the Chinese utility model patent with the publication number CN205804274U provided a topological diversion wall for the connection of the river at one side of the main channel. Pipeline connection, pump station water injection), the technical solution provided by the invention greatly improves the running water effect and saves investment costs. However, the wall forms involved in the technical solution are reinforced concrete vertical wall and Larsen sheet pile continuous wall, and the construction procedure of this type of wall is relatively complicated. In addition, since this type of rigid wall has a certain section thickness, it will reduce the cross-section of the river, thereby affecting the water-passing capacity.

Contents of the invention

The utility model aims at the deficiencies of the existing diversion walls connected to the Duantou River, and provides a flexible topological diversion wall with good running water effect, simple construction and cost saving.

The technical solution to realize the purpose of this utility model is to provide a flexible topological diversion wall for the running water of the Duantou River, which includes positioning piles, flexible anti-seepage membranes, floats and sinkers; the sinkers and floats are connected into channeling shapes respectively, The sinker is fixed or socketed on the lower part of the positioning pile, and the float is socketed on the upper part of the positioning pile; the sinker is fixed on the bottom of the flexible anti-seepage membrane, and the float is fixed on the top of the flexible anti-seepage membrane to form a flexible wall.

In the technical solution of the utility model, the flexible anti-seepage membrane is a geotextile, and its height is 10-20 cm higher than the maximum water depth of the river; the float is light foam material; the sinker is iron or stone.

When installing the flexible topological diversion wall, set a wall at the center of the width of the Duantou River whose surface width is B. One end of the wall starts at B/2 from the end of the Duantou River, and the other end is connected to the main river channel. The quay wall on the other side is connected. By setting up a topological diversion wall, the original 4-point and 3-line topological structure of a main channel and a Duantou River is changed to a 2-point, 1-line topological structure, so that the water flows on a through-line topological structure, ensuring The connected running water between the main river and the Duantou River.

Compared with the prior art, the utility model has the beneficial effects of:

1. Because the wall is made of flexible materials, it greatly improves the convenience of construction and shortens the construction period, which can be reduced to about 1/10 of the original construction period; at the same time, it is very convenient to dismantle when it is necessary to control or transform the river.

2. Saving investment cost, the cost can be reduced from about 3000 yuan per meter of rigid wall to about 300 yuan per meter.

3. Due to the small thickness of the flexible wall, it has little impact on the cross-section of the river and the original landscape, and the effect of running water is better.

Description of drawings

Figure 1 is a schematic diagram of the river channel structure before the topological diversion wall is set;

Fig. 2 is a schematic diagram of the topological structure of the river before the topological diversion wall is set;

Fig. 3 is a schematic diagram of the channel structure after the topological diversion wall is set;

Fig. 4 is a schematic diagram of the topological structure of the river after the topological diversion wall is set;

Fig. 5 is a structural schematic diagram of a longitudinal section of a flexible topology diversion wall;

In the figure, 1. Main channel; 2. Duantou River; 3. Water flow line; 4. Topological diversion wall; 5. Positioning pile; 6. Anti-seepage geotextile; 7. Floater; bed.

Detailed ways

The technical solution of the utility model will be further elaborated below in conjunction with the accompanying drawings and embodiments.

Example 1

The length of the Duantou River applicable to the utility model is generally not more than 500 meters.

See attached drawings 1 and 2, which are the schematic diagram of the channel structure and the topological structure diagram before the transformation respectively; it can be seen from Figure 1 that the water flow line 3 flows in the main channel 1, and the Duantou River 2 on one side becomes a dead water area; From the topological structure diagram in Figure 2, it can be seen that a main river 1 and a dead-end river 2 originally had a topological structure of 4 points and 3 lines. Since the water head is the driving force of water flow, in the AB section of the main river, the water flows from point A with a high water head to point B with a low water head; while in the CD section of the Duantou River, there is no head difference between points C and D, so the formation of The Deadhead River 2 in the backwater area, therefore, the water flow streamline 3 only occurs in the AB section of the main channel.

Referring to accompanying drawings 3 and 4, they are respectively the schematic diagram of the channel structure and the topological structure diagram after transformation according to the technical solution of this embodiment. It can be seen from Figure 3 that a topological diversion wall 4 is set at the center of the Duantou River 2 with a river width of B. The start of the wall is B/2 away from the end of the Duantou River, and the end is connected to the quay wall of the main channel 1. Since the comprehensive water-passing capacity of the river mainly depends on the minimum water-passing cross-sectional area, the topological diversion wall 4 is set at this position for the best effect. From the topological structure in Figure 4, it can be seen that after setting the topological diversion wall, compared with the topological structure before the transformation, the two points C and D are canceled, and the original topological structure of 4 points and 3 lines of a main channel and a Duantou River (shown in Figure 2) has been changed to a topology of 2 points and 1 line (shown in Figure 4). Driven by the water head, the water flows from point A with a high water head to point B with a low water head. The water flow line 3 occurs on the topological structure where the two points A and B are connected by a line, thus ensuring the connection between the main river and the Duantou River.

Referring to accompanying drawing 5, it is the profile view of the flexible topological diversion wall provided by this embodiment. The flexible topology diversion wall includes positioning piles 5 , flexible anti-seepage membrane 6 , floats 7 and sinkers 8 . The sinker 8 and the float 7 are respectively connected into a channeling shape, and the sinker is socketed on the lower part of the positioning pile 5, so that the sinker can slide up and down on the positioning pile according to the piling depth of the positioning pile, and sink to the bottom of the river bed 9 , or the sinker is fixed on the bottom of the spud that exposes the bottom surface of the river after piling, and sinks at the bottom of the riverbed 9; Float on the water surface; fix the sinker 8 to the bottom of the flexible anti-seepage membrane 6, and fix the float 7 to the top of the flexible anti-seepage membrane 6 to form a flexible wall. In this embodiment, the flexible anti-seepage membrane is made of high-density geotextile that is not easy to seepage, the float is made of light materials such as foam, and the sinker is made of heavy objects such as iron or stone. When in use, according to the length of the topological diversion wall required for the Duantou River and the water flow conditions, several piles are selected for fixing, and the positioning piles are fixed on the bottom of the river. The sinker sinks at the bottom of the river bed. The maximum water depth is 10-20cm, and the float floats on the water surface.

The thickness of the flexible wall body provided by this embodiment is extremely small, and the cross-sectional area of the Duantou River can be reserved to the maximum extent. It is convenient to install and dismantle, and the investment cost is low, which is conducive to popularization and utilization.

Claims (4)

1. A flexible topological diversion wall for running water in the Duantou River, characterized in that it includes positioning piles (5), flexible anti-seepage membranes (6), floats (7) and sinkers (8); sinkers The sinker is fixed or socketed on the lower part of the positioning pile, and the float is socketed on the upper part of the positioning pile; the sinker is fixed on the bottom of the flexible anti-seepage membrane, and the float is fixed on the bottom of the flexible anti-seepage membrane. top, forming a flexible wall. 2. A flexible topological diversion wall for running water in Duantou River according to claim 1, characterized in that: said flexible anti-seepage membrane is geotextile, and its height is 10-20 cm higher than the maximum water depth of the river. 3. A flexible topological diversion wall for the running water of Duantou River according to claim 1, characterized in that: said float is made of lightweight foam material. 4. A flexible topological diversion wall for running water in the Duantou River according to claim 1, wherein the sinker is iron or stone.