Practical underground diaphragm wall backfilling gravel filtering device

Abstract

The utility model relates to the technical field of underground diaphragm wall operation engineering, in particular to a practical underground diaphragm wall backfill gravel filtering device which comprises a transverse supporting keel, a vertical supporting keel, a hanging lug, a constraining stone collecting groove, a sieve-shaped filtering steel plate, a threaded connecting piece and a gravel hopper. A transverse supporting keel is arranged on the inner side of the transverse supporting keel, a lifting lug is hung above the transverse supporting keel, a constraining stone collecting groove is formed in the inner side of the transverse supporting keel, a sieve-shaped filtering steel plate is arranged on the inner side of the constraining stone collecting groove, and a threaded connecting piece is arranged on one side of the sieve-shaped filtering steel plate; a broken stone hopper is arranged at the inner upper part of the constraining stone collecting tank; the gravel filtering structure is arranged, in the construction process of underground diaphragm wall backfilling, gravel is screened and filtered during backfilling, and concrete turbulent flow and underground diaphragm wall leakage caused by the fact that the particle size is too large are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ground-connected wall operation engineering, in particular to a practical ground-connected wall backfill gravel filtering device. Background Art

[0002] Underground continuous wall is called "concrete underground wall" or "mud wall" in Europe and the United States, and "underground continuous wall" or "continuous heavy wall" in Japan. It is a new technology that is developing and increasingly widely used. In recent years, it has not only become quite popular in Europe and Japan, but has also been increasingly widely used in my country. my country's underground continuous wall technology has made great progress both in theoretical research and in construction technology, and has become the dominant method in urban open-cut construction.

[0003] However, at present, the actual construction quality control of the joints between the sections of the ground-anchored wall is difficult to meet the design standards. Sometimes, too large gravel is mixed into the concrete, causing concrete turbulence problems during construction, and the joints between the sections are not ideal, resulting in leakage. The existing gravel screening machines are all electrically driven mechanical devices with complex structures, bulky machinery, high costs, and are not suitable for complex construction environments.

[0004] Therefore, in view of the fact that sometimes oversized gravel is mixed into the concrete during the current construction of ground-anchored walls, causing concrete disturbance during the construction process, a practical ground-anchored wall backfill gravel filtering device can be designed to screen and filter the gravel when the ground-anchored wall is backfilled, so as to avoid concrete disturbance caused by excessive particle size and leakage of the ground-anchored wall. Utility Model Content

[0005] In order to overcome the problem that in most current ground-connected wall construction, oversized gravel is sometimes mixed into the concrete, causing concrete turbulence during construction.

[0006] The technical solution of the utility model is: a practical ground-connected wall backfill gravel filtering device, including a horizontal support keel and a vertical support keel, a hanging lug, a constrained stone collecting trough, a sieve-shaped filter steel plate, a threaded connector and a gravel hopper; a horizontal support keel is provided on the inner side of the horizontal support keel, a hanging lug is provided above the horizontal support keel, a constrained stone collecting trough is provided on the inner side of the horizontal support keel, a sieve-shaped filter steel plate is provided on the inner side of the constrained stone collecting trough, a threaded connector is provided on one side of the sieve-shaped filter steel plate, and a gravel hopper is provided on the inner upper part of the constrained stone collecting trough.

[0007] Preferably, a frame is formed by setting up horizontal support keels and vertical support keels to install and fix the constrained stone collecting trough, and the hanging ears are used to facilitate the installation of the device on the guide wall. The sieve-like filter steel plate is fixed to the constrained stone collecting trough using threaded connectors to filter the gravel, and the gravel hopper is used to facilitate the operator to send the gravel into the constrained stone collecting trough.

[0008] Preferably, the horizontal supporting purlins and the vertical supporting purlins form a frame, and the width of the horizontal supporting purlins is widened by a total of 10 cm on the left and right sides of the axis according to the guide wall design standard.

[0009] Preferably, the suspension lugs are located above the uppermost group of transverse supporting keels, and four groups of suspension lugs are provided, and the four groups of suspension lugs are arranged in an axisymmetric manner.

[0010] Preferably, the inclined side plate on one side of the constrained stone collecting trough is inclined, and the upper opening of the constrained stone collecting trough is larger than the bottom opening.

[0011] Preferably, a filter hole is provided on one side of the inclined side plate, and multiple groups of mounting holes are provided on the upper and lower sides of the filter hole.

[0012] Preferably, a discharge trough is provided at the bottom opening of the constrained stone collecting trough, and the discharge trough is communicated with the constrained stone collecting trough.

[0013] Preferably, filter holes are provided on the inner side of the sieve-like filter steel plate, and there are multiple groups of filter holes. The diameter of the filter holes is larger than the diameter of the required gravel.

[0014] Preferably, a feed hole is provided at the bottom of the gravel hopper, and the feed hole is offset above the inclined side plate. The beneficial effects of the utility model are:

[0015] The overall structure of the device is simple and easy to use in complex construction environments. The horizontal support keel and the vertical support keel form a frame to install a constrained stone collection trough. The constrained stone collection trough and the sieve-shaped filter steel plate are used to realize diversion after particle size screening. The device is mounted on the guide wall through the hanging lug. After screening, the crushed stone is directly backfilled to avoid the process time node being too long and affecting the overall construction arrangement. It not only ensures the effect of screening crushed stone, but also can produce good economic benefits and is more convenient to use. The existing crushed stone screening machines on the market are all electrically driven mechanical devices with complex structure, bulky machinery, high cost, and are not suitable for complex construction environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a three-dimensional structural diagram of a practical ground-connected wall backfill gravel filtering device of the present invention;

[0017] Figure 2Shown is a schematic diagram of the three-dimensional structure of a constrained stone collection trough of a practical ground-connected wall backfill gravel filtering device of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of a sieve-shaped filter steel plate of a practical ground-connected wall backfill gravel filtering device of the present invention;

[0019] Figure 4 Shown is a schematic diagram of the three-dimensional structure of a gravel hopper of a practical ground-connected wall backfill gravel filtering device of the present invention.

[0020] Explanation of the accompanying symbols: 1. Horizontal supporting keel; 2. Vertical supporting keel; 3. Suspension lug; 4. Constrained stone collection trough; 401. Filter hole; 402. Mounting hole; 403. Discharge chute; 404. Inclined side panel; 5. Sieve-like filter steel plate; 501. Filter hole; 6. Threaded connector; 7. Crushed stone hopper; 701. Feed hole. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 4 The utility model provides an embodiment: a practical ground-connected wall backfill gravel filtering device, comprising a horizontal support keel 1 and a vertical support keel 2, a hanging lug 3, a constrained stone collecting trough 4, a sieve-like filter steel plate 5, a threaded connector 6 and a gravel hopper 7; the horizontal support keel 1 is provided on the inner side of the horizontal support keel 1, the hanging lug 3 is above the horizontal support keel 1, the constrained stone collecting trough 4 is provided on the inner side of the horizontal support keel 1, the sieve-like filter steel plate 5 is provided on the inner side of the constrained stone collecting trough 4, a threaded connector 6 is provided on one side of the sieve-like filter steel plate 5, and a gravel hopper 7 is provided on the inner upper part of the constrained stone collecting trough 4.

[0023] See also Figure 1 In this embodiment, the horizontal support keel 1 and the vertical support keel 2 form a frame. The width of the horizontal support keel 1 is widened by a total of 10 cm on the left and right sides of the axis according to the guide wall design standard. The hanging lug 3 is located above the topmost group of horizontal support keels 1. There are four groups of hanging lugs 3, and the four groups of hanging lugs 3 are arranged axially symmetrically.

[0024] See also Figure 2In this embodiment, the inclined side plate 404 on one side of the constrained stone collecting trough 4 is inclined, the upper opening of the constrained stone collecting trough 4 is larger than the bottom opening, a filter hole 401 is provided on one side of the inclined side plate 404, and multiple groups of mounting holes 402 are provided on the upper and lower sides of the filter hole 401. A discharge trough 403 is provided at the bottom opening of the constrained stone collecting trough 4, and the discharge trough 403 is interconnected with the constrained stone collecting trough 4.

[0025] See also Figure 3 In this embodiment, filtering holes 501 are opened on the inner side of the sieve-shaped filter steel plate 5. There are multiple groups of filtering holes 501. The diameter of the filtering holes 501 is larger than the diameter of the required gravel.

[0026] See also Figure 4 In this embodiment, a feed hole 701 is provided at the bottom of the gravel hopper 7 , and the feed hole 701 is offset above the inclined side plate 404 .

[0027] During use of the device, the horizontal support keel 1 and the vertical support keel 2 form a frame to install and fix the constrained stone collecting trough 4. The hanging lug 3 is used to facilitate the installation of the device on the guide wall. The threaded connector 6 fixes the sieve filter steel plate 5 to the constrained stone collecting trough 4. After the gravel is fed into the gravel hopper 7, the gravel falls from the feed hole 701 to the uppermost end of the inclined side plate 404, and slides downward on the inner side of the sieve filter steel plate 5 under the action of gravity. Small particles of gravel fall from the filter hole 501 and the filter hole 401 into the gravel backfill area, and large pieces of gravel slide out of the device from the discharge trough 403 for other use. The threaded connector 6 can be unscrewed to replace different sieve filter steel plates 5 to screen gravel of different sizes.

[0028] Through the above steps, a frame is formed by setting up horizontal support keels 1 and vertical support keels 2, and the constrained stone collecting trough 4 is installed and fixed. The hanging lugs 3 are used to facilitate the installation of the device on the guide wall. The threaded connector 6 is used to fix the sieve-like filter steel plate 5 to the constrained stone collecting trough 4 to filter the gravel. The gravel hopper 7 is used to facilitate the operator to send the gravel into the constrained stone collecting trough 4.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A practical ground-connected wall backfill gravel filtering device, comprising a transverse support keel (1) and a vertical support keel (2); characterized in that: The invention also includes a hanging lug (3), a constrained stone collecting trough (4), a sieve-like filter steel plate (5), a threaded connector (6) and a crushed stone hopper (7); a lateral support keel (1) is provided on the inner side of the lateral support keel (1), a hanging lug (3) is provided above the lateral support keel (1), a constrained stone collecting trough (4) is provided on the inner side of the lateral support keel (1), a sieve-like filter steel plate (5) is provided on the inner side of the constrained stone collecting trough (4), a threaded connector (6) is provided on one side of the sieve-like filter steel plate (5), and a crushed stone hopper (7) is provided above the inner side of the constrained stone collecting trough (4).

2. A practical ground-connected wall backfill gravel filtering device according to claim 1, characterized in that: The horizontal supporting keel (1) and the vertical supporting keel (2) form a frame.

3. A practical ground-connected wall backfill gravel filtering device according to claim 1, characterized in that: The suspension lugs (3) are located above the uppermost group of transverse supporting keels (1). Four groups of suspension lugs (3) are provided, and the four groups of suspension lugs (3) are arranged in an axisymmetric manner.

4. A practical ground-connected wall backfill gravel filtering device according to claim 1, characterized in that: The inclined side plate (404) on one side of the constrained stone collecting trough (4) is arranged to be inclined, and the upper opening of the constrained stone collecting trough (4) is larger than the bottom opening.

5. A practical ground-connected wall backfill gravel filtering device according to claim 4, characterized in that: A filter hole (401) is provided on one side of the inclined side plate (404), and multiple groups of mounting holes (402) are provided on the upper and lower sides of the filter hole (401).

6. A practical ground-connected wall backfill gravel filtering device according to claim 4, characterized in that: A discharge trough (403) is provided at the bottom opening of the constrained stone collecting trough (4), and the discharge trough (403) and the constrained stone collecting trough (4) are interconnected.

7. A practical ground-connected wall backfill gravel filtering device according to claim 4, characterized in that: The inner side of the sieve-shaped filter steel plate (5) is provided with filter holes (501), and the filter holes (501) are provided in multiple groups. The diameter of the filter holes (501) is larger than the required diameter of the gravel.

8. A practical ground-connected wall backfill gravel filtering device according to claim 4, characterized in that: A feed hole (701) is provided at the bottom of the crushed stone hopper (7), and the feed hole (701) is offset above the inclined side plate (404).

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