Sheet-pile combined water absorption and drainage anchor rod device for high-water-level sandy soil area

Abstract

The utility model discloses a plate-pile combined water suction and drainage anchor rod device for a high-water-level sandy soil area, which is characterized by comprising a steel template, a fixed pile, a water collection anchor rod, a water chute, a water pump and a water pumping pipe, a vertical groove is formed in the outer side of the steel formwork; holes are formed in the inner side of the steel formwork. A water guide groove is formed in the lower part of the steel template; the steel template is connected with a water pump through a water pumping pipe; and the catchment support anchor rod is connected with the steel template through the hole. Through the water collection supporting anchor rod and sheet pile combined supporting device, the safety and stability of the foundation pit are guaranteed, meanwhile, seepage water on the side wall of the foundation pit is collected, and the underground water level of the side wall of the foundation pit is lowered.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support templates, in particular to a sheet pile combined suction and drainage anchor device in high water level sandy soil areas. Background Art

[0002] With the continuous improvement of my country's comprehensive national strength and the rapid development of infrastructure construction in major cities, it is inevitable that foundation pit excavation will be carried out in unfavorable geological areas such as sandy soil or high-pressure water. When constructing in such geological areas, when the foundation pit is disturbed or the surrounding structure has construction defects, it is easy to cause the soil outside the pit to flow into the pit, causing water and sand leakage accidents in the foundation pit project. If effective protective measures are not taken, it will affect the safety of infrastructure construction. Therefore, it is very important to ensure the safety and stability of the foundation pit support during the construction process and reduce the groundwater level of the foundation pit project in the sandy soil area in engineering construction.

[0003] The existing traditional support methods include baffle support or pile foundation support, but neither baffle nor pile foundation support can guarantee the long-term stability of the foundation pit wall, and the soil pressure that the baffle or pile foundation can withstand is limited to a certain extent, and structural deformation is inevitable during the enclosure process. Traditional methods of lowering the water level in foundation pits, such as well point dewatering, are relatively inefficient and require a large amount of manpower and material resources, increasing the energy cost of long-term construction. Therefore, while achieving the long-term support function of the foundation pit and ensuring the overall safety and stability of the foundation pit side walls, it is critical to continuously lower the foundation pit water level and replace the traditional well point dewatering function. Therefore, there is an urgent need for a sheet pile combined suction and drainage anchor device in high water level sandy soil areas. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to overcome the above-mentioned shortcomings and provide a sheet pile combined suction and drainage anchor rod device for high water level sandy soil areas, thereby achieving the purpose.

[0005] In order to achieve the above object, the utility model comprises the following steps:

[0006] A sheet pile combined suction and drainage anchor device for high water level sandy soil areas, characterized in that it includes a steel formwork, fixed piles, water collecting anchors, water guide grooves, a pump, and a pumping pipe; a vertical groove is provided on the outer side of the steel formwork; a hole is provided on the inner side of the steel formwork; the lower part of the steel formwork is a water guide groove; the steel formwork is connected to the pump through a pumping pipe; and the water collecting support anchor is connected to the steel formwork through the hole.

[0007] Furthermore, the fixed piles are embedded in the sand of the foundation pit and fixed to the outside of the steel formwork through vertical grooves.

[0008] Furthermore, barbs are evenly distributed on the outside of the water-collecting support anchor rod; the outer body of the water-collecting support anchor rod is a water-permeable layer; and the inside of the water-collecting support anchor rod is a hollow conduit.

[0009] Furthermore, the steel formworks are connected to each other via concave side connecting grooves and convex side connecting blocks, and vertical partitions are arranged inside the steel formworks.

[0010] Furthermore, a water level monitor is arranged at the top of the water guide trough.

[0011] The beneficial effects of the utility model are:

[0012] The utility model ingeniously uses the water-collecting support anchor rod to improve the overall stability of the foundation pit, while lowering the groundwater level of the side wall of the foundation pit in the high-water-level sandy soil area, avoiding the collapse of the foundation pit caused by water seepage on the side wall. Subsequently, the water-collecting support anchor rod is connected with the sheet pile for joint support to enclose and support the side wall of the foundation pit, thereby improving the support's ability to resist water, soil pressure and displacement, and ensuring the safety and stability of the foundation pit. The seepage water on the side wall of the foundation pit is collected at the bottom of the baffle, realizing simple automation of seepage water collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0014] Figure 1 It is the overall cross-sectional view of the device of the utility model;

[0015] Figure 2 This is a front view of the steel template and fixed piles of the device of the utility model;

[0016] Figure 3 It is a top view of the steel template and the fixed piles of the device of the utility model;

[0017] Figure 4 It is a rear view of the steel template of the device of the utility model;

[0018] Figure 5 It is a schematic diagram of the water collection anchor rod of the utility model device.

[0019] Figure 1 .5: 1-steel formwork; 2-fixed piles; 3-water collection support anchor rods; 4-water guide trough; 5-pump; 6-pump pipe; 7-vertical partition; 8-holes; 9-vertical grooves; 10-concave side connecting grooves; 11-convex side connecting blocks; 12-permeable layer; 13-barbs; 14-hollow conduits; 15-water level monitors. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] See also Figure 1 .5. A sheet pile combined suction and drainage anchor device for high-water-level sandy soil areas, characterized in that it includes a steel formwork 1, fixed piles 2, water-collecting support anchors 3, water guide grooves 4, water pumps 5, and water pumping pipes 6; a vertical groove 9 is provided on the outer side of the steel formwork 1; a hole 8 is provided on the inner side of the steel formwork 1; the lower part of the steel formwork 1 is a water guide groove 4; the steel formwork 1 is connected to the water pump 5 through the water pumping pipe 6; the water-collecting support anchors 3 are connected to the steel formwork 1 through the hole 8.

[0022] Furthermore, the fixed piles 2 are buried in the sand of the foundation pit and fixed to the outside of the steel formwork 1 through the vertical grooves 9 .

[0023] In the above embodiments, the fixing piles are vertically driven into the vertical grooves of the steel formwork from the upper part of the vertical grooves to ensure a tight connection between the fixing piles and the steel formwork.

[0024] Furthermore, barbs 13 are evenly distributed on the outside of the water-collecting support anchor rod 3 ; the outer body of the water-collecting support anchor rod 3 is a permeable layer 12 ; and the inside of the water-collecting support anchor rod 3 is a hollow conduit 14 .

[0025] In the above embodiments, the water-collecting support anchor rods can collect groundwater on the side walls of the foundation pit, and the groundwater flows into the water guide groove of the steel formwork through the internal hollow conduit.

[0026] Furthermore, the steel formworks 1 are connected to each other via concave side connection grooves 10 and convex side connection blocks 11 , and vertical partitions 7 are arranged inside the steel formworks 1 .

[0027] Furthermore, a water level monitor 15 is arranged at the top of the water channel 4 .

[0028] In the above embodiments, the water level detector is used to monitor the water level of the water channel. When the water level exceeds the water level detector, the water level detector controls the pump to pump out the water seeping from the side wall of the water channel.

[0029] The specific working process is described in detail below:

[0030] 1) Drive water collection support anchor rods obliquely into the side wall of the foundation pit according to the position of the cavity;

[0031] 2) Set up steel formwork close to the side wall of the foundation pit, and connect multiple formworks with the convex side connection blocks through the concave side connection grooves;

[0032] 3) Drive the fixed piles into the steel formwork from the upper part of the vertical groove and press them into the bottom of the foundation pit;

[0033] 4) Place the suction pipe into the water channel and turn on the water level detector and pump.

[0034] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly or indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A sheet pile combined suction and drainage anchor device for high water level sandy soil areas, It is characterized in that The invention comprises a steel formwork (1), a fixed pile (2), a water collecting support anchor rod (3), a water guide groove (4), a water pump (5), and a water pumping pipe (6); the outer side of the steel formwork (1) is provided with a vertical groove (9); the inner side of the steel formwork (1) is provided with a hole (8); the lower part of the steel formwork (1) is a water guide groove (4); the steel formwork (1) is connected to the water pump (5) through the water pumping pipe (6); the water collecting support anchor rod (3) is connected to the steel formwork (1) through the hole (8).

2. A sheet pile combined suction and drainage anchor device for high water level sandy soil areas according to claim 1, It is characterized in that The fixed piles (2) are buried in the sand of the foundation pit and fixed to the outside of the steel formwork (1) through the vertical grooves (9).

3. A sheet pile combined suction and drainage anchor device for high water level sandy soil areas according to claim 1, It is characterized in that The outer side of the water-collecting support anchor rod (3) is evenly distributed with barbs (13); the outer body of the water-collecting support anchor rod (3) is a water-permeable layer (12); and the interior of the water-collecting support anchor rod (3) is a hollow conduit (14).

4. A sheet pile combined suction and drainage anchor device for high water level sandy soil areas according to claim 1, It is characterized in that The steel templates (1) are connected to each other via a concave side connection groove (10) and a convex side connection block (11), and a vertical partition plate (7) is arranged inside the steel template (1).

5. A sheet pile combined suction and drainage anchor device for high water level sandy soil areas according to claim 1, It is characterized in that A water level monitor (15) is arranged at the top of the water guide channel (4).

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