Reinforcing device for reducing piping and quicksand on side wall of foundation pit

Abstract

The utility model discloses a reinforcing device for reducing piping and quicksand on the side wall of a foundation pit, which relates to the technical field of foundation pit reinforcement and comprises a tie net rack, the tie net rack is mounted on the side surface of one side of the foundation pit and is provided with a cable-stayed fixing part, and the cable-stayed fixing part is suitable for fixing the tie net rack; the tie net rack comprises a plurality of groups of horizontal rods, a plurality of groups of vertical rods and a plurality of filter screens, and the horizontal rods and the vertical rods are vertically intersected and form a plurality of rectangular intervals; a filter screen is mounted in the rectangular section; an annular installation opening is further formed in the tie net rack, and an insertion barrel is installed on the annular installation opening and suitable for being inserted into the side wall of the corresponding foundation pit. The technical problem that piping and quicksand are prone to occurring on the side face of a foundation pit in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit reinforcing technique field, concretely is a reinforcing device that reduces pipe heaving and flowing sand of foundation pit side wall. BACKGROUND

[0002] In the foundation pit construction process, if the precipitation is not in place or the underground water is abnormal, it usually has adverse effects on the foundation, the most common one is pipe heaving and flowing sand, in the actual construction process, this kind of situation is very common in various types of sinking well such as water collecting well, elevator shaft etc., because the excavation bottom elevation is lower than the foundation pit large surface foundation elevation, so under the condition that the foundation pit large surface foundation precipitation is in place, its foundation can still be near the underground water level, so pipe heaving or flowing sand is extremely easy to appear, and due to the influence of precipitation mode and position, the possibility of this kind of situation appearing near the side slope of the sinking well, especially its side wall, is higher than other regions, if this situation appears, it will lead to cavity and even collapse under the treatment of unfavorable situation, thereby affecting the quality of the whole foundation pit. In most cases, materials such as gravel and sandbags are generally used for plugging to reduce damage, but due to the influence of water pressure, flowing sand will flow into the foundation pit with underground water, although the possibility of collapse is reduced, but cavity will also appear.

[0003] Therefore, we provide a reinforcing device that reduces pipe heaving and flowing sand of foundation pit side wall to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the quality and efficiency of foundation pit construction and solve the above technical problems, the utility model provides a reinforcing device that reduces pipe heaving and flowing sand of foundation pit side wall, and the manufacturing is simple, which can effectively reduce the influence of pipe heaving and flowing sand of sinking well of foundation pit caused by the fact that the foundation pit precipitation is not in place.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] A reinforcing device that reduces pipe heaving and flowing sand of foundation pit side wall, comprising a tie net frame, the tie net frame is installed on one side of the foundation pit, and a cable-stayed fixing part is installed, the cable-stayed fixing part is suitable for fixing the tie net frame;

[0007] The tie net frame comprises horizontal rods, vertical rods and filter screens, the horizontal rods and the vertical rods are all provided with multiple groups and vertically intersect, and multiple rectangular intervals are formed;The filter screens are installed in the rectangular intervals;

[0008] The tie net frame is further provided with an annular mounting port, and a plug-in cylinder body is installed on the annular mounting port, the plug-in cylinder body is suitable for being inserted into the corresponding foundation pit side wall.

[0009] In a further technical solution, the diagonal tension fixing member comprises a diagonal tension rod and a support plate, one end of the diagonal tension rod is fixedly connected with a group of horizontal rods, the other end is fixedly connected with the support plate; the support plate is fixedly connected with the side surface of the foundation pit on the other side.

[0010] In a further technical solution, the diagonal tension fixing member comprises a fixed plate, a threaded column is installed on the fixed plate, and mounting holes are arranged on four sides; a positioning pin is adapted to be installed in the mounting hole;

[0011] A bent pipe is installed on the threaded column, the bottom of the bent pipe is threadedly connected with the threaded column, and a snap ring I is installed on the top.

[0012] In a further technical solution, the insertion cylinder body comprises a flange ring and a conical cylinder body, bolts are installed on the flange ring and pass through the snap ring I and are detachably connected with the annular mounting port;

[0013] The conical cylinder body is adapted to be inserted into the annular mounting port and into the corresponding side surface of the foundation pit.

[0014] In a further technical solution, an arc-shaped notch is arranged at the end of the conical cylinder body.

[0015] In a further technical solution, the tie net rack is provided with a plurality of annular mounting ports arranged in parallel;

[0016] A mounting threaded hole is arranged at the top of the snap ring I, and a connecting rod is threadedly installed in the mounting threaded hole; a snap ring II is installed at the other end of the connecting rod, and the snap ring II is threadedly connected with the connecting rod.

[0017] In a further technical solution, the annular mounting port is provided with multiple layers, and the number of layers is A; the number of layers in which the snap ring I or the snap ring II is installed is B; and (A / B)>0.3 is met.

[0018] Compared with the prior art, the beneficial effects are:

[0019] The utility model discloses a tie net rack is installed on the side surface of foundation pit and is fixed on the side surface, and the tie net rack is reinforced by the diagonal tension fixing member, and in the smaller foundation pit, the diagonal tension rod and the support plate can be used for fixed support.

[0020] The utility model discloses a bent pipe is arranged and is supported and connected, and the bottom is fixed on the bottom of foundation pit through the fixed plate and the positioning pin, and the top is fixed on the annular mounting port through the bolt of flange ring and the snap ring I, to realize the effect of top support and fixation. The utility model discloses an insertion cylinder body with arc-shaped notch is connected, and has the effects of drainage and convenient insertion in the side surface of foundation pit.

[0021] The utility model can connect multiple groups of clamping rings 2 in sequence through connecting rods to achieve effective fixation of the tie-down grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the tie-down grid of Example 1 of the present utility model installed in a foundation pit;

[0023] Figure 2 This is a front view of the tie-down grid of Example 1 of the present utility model;

[0024] Figure 3 This is a structural schematic diagram of the tie-down grid of Example 1 of the present utility model installed in a foundation pit;

[0025] Figure 4 This is a schematic diagram of the tie-down grid of Example 2 of the present utility model installed in a foundation pit;

[0026] Figure 5 This is a front view of the tie-knitting grid of Example 2 of the present utility model;

[0027] Figure 6 This is a cross-sectional view of the tie-down grid of Example 2 of the present utility model installed in a foundation pit;

[0028] Figure 7 For this utility model Figure 6 A schematic diagram of the structure enlarged in the middle;

[0029] Figure 8 For this utility model Figure 6 The enlarged structural diagram at B in the middle;

[0030] Figure 9 This is a schematic structural diagram of the insert cylinder body of the present utility model;

[0031] Figure 10 This is a structural schematic diagram of the tie-down grid of Example 3 of the present utility model installed in a foundation pit;

[0032] Figure 11 This is a schematic diagram of the connection between the first and second clamping rings of Example 3 of the present utility model;

[0033] In the picture:

[0034] 1. Tie-knitted grid; 11. Horizontal rod; 12. Vertical rod; 13. Filter; 14. Ring mounting port;

[0035] 2. Oblique tie rod; 21. Oblique tie rod; 22. Support plate; 23. Fixing plate; 24. Threaded column; 25. Positioning pin; 26. Bend tube; 27. Snap ring 1;

[0036] 3. Insert cylinder; 31. Flange ring; 32. Conical cylinder; 33. Arc-shaped notch;

[0037] 4, connecting rod; 5, snap ring two; 6, foundation pit. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Embodiment 1

[0040] Please refer to Figures 1-3 The present application provides a technical scheme, a reinforcing device for reducing piping and flowing sand of a side wall of a foundation pit, comprising a tie net rack 1, the tie net rack 1 is installed on one side of a side surface of a foundation pit 6, and a cable-stayed fixing part 2 is installed, the cable-stayed fixing part 2 is suitable for fixing the tie net rack 1; the tie net rack 1 comprises horizontal rods 11, vertical rods 12 and filter screens 13, the horizontal rods 11 and the vertical rods 12 are both provided with multiple groups of vertical intersections and constitute multiple rectangular intervals; the filter screens 13 are installed in the rectangular intervals; the tie net rack 1 is further provided with an annular mounting port 14, and a plug-in cylinder 3 is installed on the annular mounting port 14, the plug-in cylinder 3 is suitable for being inserted into a corresponding side wall of the foundation pit 6.

[0041] The cable-stayed fixing part 2 comprises a cable-stayed rod 21 and a support plate 22, one end of the cable-stayed rod 21 is fixedly connected with a group of horizontal rods 11, and the other end is fixedly connected with the support plate 22; the support plate 22 is fixedly connected with a side surface of the foundation pit 6 on the other side.

[0042] When piping or flowing sand occurs in the side wall of the foundation pit 6, in order to prevent the side wall from being hollowed or collapsed, the reinforcing device is fixed in time to prevent flowing sand from entering the sinking well, then the cable-stayed rod 21 is used to connect the vertical rod 5 in the middle of the tie net rack 1, and the other end is fixed on the side wall opposite to the side wall, after complete fixation, the underground water filtered by the filter screen is pumped out, if necessary, a dewatering well point is additionally arranged nearby, after the water level is stable, the reinforcing device can be removed, and finally the lower foundation pit and the bottom are cleaned and trimmed. The manufacturing material and size can be selected according to the site condition, which can effectively reduce the possibility of the lower side wall being hollowed or collapsed, and plays a certain role in quality control of the foundation pit.

[0043] Embodiment 2

[0044] As Figures 4-10As shown, the plug-in cylinder body 3 includes a flange ring 31 and a conical cylinder 32, the flange ring 31 is installed with a bolt and passes through the snap ring one 27 and is detachably connected with the annular mounting port 14; the conical cylinder 32 is suitable for being inserted into the annular mounting port 14 and is inserted into the corresponding side surface of the foundation pit 6. The end of the conical cylinder 32 is provided with an arc-shaped notch 33. The arc-shaped notch 33 can conveniently insert into the foundation pit 6, and also facilitate the chip removal of water in the piping or quicksand.

[0045] The threaded column 24 is installed with a bent pipe 26, and the bottom of the bent pipe 26 is threadedly connected with the threaded column 24, and the top is installed with a snap ring one 27.

[0046] As shown, Figure 9 The plug-in cylinder body 3 includes a flange ring 31 and a conical cylinder 32, the flange ring 31 is installed with a bolt and passes through the snap ring one 27 and is detachably connected with the annular mounting port 14; the conical cylinder 32 is suitable for being inserted into the annular mounting port 14 and is inserted into the corresponding side surface of the foundation pit 6. The end of the conical cylinder 32 is provided with an arc-shaped notch 33. The arc-shaped notch 33 can conveniently insert into the foundation pit 6, and also facilitate the chip removal of water in the piping or quicksand.

[0047] Example 3

[0048] As shown, Figure 10 And 11 As shown, another embodiment of the utility model, on the basis of example 1, the tie net rack 1 is provided with multiple annular mounting ports 14, and is parallelly arranged;A mounting screw hole is arranged on the top of the snap ring one 27, and a connecting rod 4 is threadedly installed in the mounting screw hole;A snap ring two 5 is installed on the other end of the connecting rod 4, and the snap ring two 5 is threadedly connected with the connecting rod 4. In a further technical solution, the annular mounting port 14 is provided with multiple layers, and the number of layers is A;The number of layers of the snap ring one 27 or the snap ring two 5 is B;And meet: (A / B)>0.3. In this way, the fixing of the tie net rack on the side surface of the foundation pit can be enhanced, so as to ensure the connection strength.

[0049] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-described exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

Claims

1. A reinforcement device for reducing piping and quicksand of a side wall of a foundation pit, characterized by, It comprises a tie-down grid (1), which is installed on one side of a foundation pit (6) and is provided with an oblique tie-down fixing member (2), wherein the oblique tie-down fixing member (2) is suitable for fixing the tie-down grid (1); The tie-net frame (1) comprises horizontal rods (11), vertical rods (12) and filter nets (13); the horizontal rods (11) and vertical rods (12) are provided in multiple groups and intersect vertically to form multiple rectangular sections; the filter nets (13) are installed in the rectangular sections; The tie-down grid (1) is also provided with an annular installation opening (14), and an inserting cylinder body (3) is installed on the annular installation opening (14). The inserting cylinder body (3) is suitable for being inserted into the side wall of the corresponding foundation pit (6).

2. The reinforcement device for reducing piping and quicksand of a side wall of a foundation pit according to claim 1, characterized in that, The inclined fixing member (2) comprises an inclined rod (21) and a support plate (22); one end of the inclined rod (21) is fixedly connected to a group of horizontal rods (11), and the other end is fixedly connected to the support plate (22); the support plate (22) is fixedly connected to the side surface of the foundation pit (6) on the other side.

3. The reinforcement device of claim 1, wherein, The oblique-tension fixing member (2) comprises a fixing plate (23), a threaded column (24) is mounted on the fixing plate (23), and mounting holes are provided on four sides; the mounting holes are suitable for mounting positioning pins (25); A bending tube (26) is installed on the threaded column (24), the bottom of the bending tube (26) is threadedly connected to the threaded column (24), and a clamping ring (27) is installed on the top.

4. The soil stabilizing device of claim 3, wherein: The insert cylinder body (3) comprises a flange ring (31) and a conical cylinder body (32); a bolt is installed on the flange ring (31) and passes through a clamping ring (27) and is detachably connected to the annular mounting opening (14); The conical cylinder (32) is suitable for being inserted into the annular installation opening (14) and into the side surface of the corresponding foundation pit (6).

5. The apparatus of claim 4, wherein the apparatus is configured to reduce piping and quicksand in the sidewall of the excavation. An arc-shaped notch (33) is provided at the end of the conical cylinder (32).

6. The soil stabilizing device of claim 4, wherein, The tie-down grid (1) is provided with multiple groups of annular mounting openings (14) which are arranged in parallel; A mounting threaded hole is provided on the top of the first clamping ring (27), and a connecting rod (4) is threadedly mounted in the mounting threaded hole; a second clamping ring (5) is mounted on the other end of the connecting rod (4), and the second clamping ring (5) is threadedly connected to the connecting rod (4).

7. The apparatus of claim 4, wherein the apparatus is further characterized by: The annular mounting opening (14) is provided with multiple layers, and the number of layers is A; the number of layers on which the first clamping ring (27) or the second clamping ring (5) is installed is B; and the following is satisfied: A / B>0.3.

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