Anti-floating pile with drainage and anti-floating capability enhancement functions

Abstract

The utility model discloses an anti-floating pile with water draining and anti-floating enhancing capabilities. The anti-floating pile comprises an anti-floating pile body, an anti-floating enhancing body, water seepage holes, water draining holes and a water draining device, the anti-floating pile body comprises an anti-floating pile fixing part located on the upper side of the foundation pit bottom plate and an anti-floating pile soil body part located on the lower side of the foundation pit bottom plate. A plurality of anti-floating reinforcing bodies distributed along the circumference of the anti-floating pile body are arranged on one surface, in contact with the soil body, of the anti-floating pile soil body part; a water seepage hole communicated with the outer side and the inner side of the anti-floating pile body is further formed in the soil body part of the anti-floating pile; the anti-floating reinforcement bodies and the water seepage holes are arranged at intervals in the axial direction of the anti-floating pile body; the drainage hole is formed in the anti-floating pile fixing part; the drainage device is used for draining water permeating into the anti-floating pile to the outside through the drainage hole; the drainage function of the anti-floating pile is achieved, the friction force between the anti-floating pile and soil is increased, the anti-floating capacity is improved, and the anti-floating effect is improved while the drainage function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti - floating piles, in particular to an anti - floating pile with drainage and enhanced anti - floating ability. Background Art

[0002] When constructing projects such as subways and tunnels in water - rich areas, due to the high groundwater level, abundant groundwater content, and generally soft soil quality, the seepage and other effects caused by groundwater will have a greater impact on the actual construction, easily leading to the floating and sinking of the foundation pit bottom, seriously affecting the construction quality and safety. Therefore, during the construction of the foundation pit in water - rich areas, applying anti - floating support measures is an essential construction link.

[0003] As an important foundation pit support measure, anti - floating piles can effectively solve the problem of floating and sinking of the foundation pit bottom and ensure the stability and safety of the foundation pit structure. However, the existing drainage anti - floating piles cannot ensure the anti - floating effect while draining water, and the anti - floating effect is limited. Summary of the Invention

[0004] The utility model provides an anti - floating pile with drainage and enhanced anti - floating ability to overcome the technical problem that the existing drainage anti - floating piles have limited anti - floating effect while draining water.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An anti - floating pile with drainage and enhanced anti - floating ability, comprising: an anti - floating pile body, an anti - floating reinforcement body, a water seepage hole, a drainage hole, and a drainage device;

[0007] The anti - floating pile body includes an anti - floating pile fixed part on the upper side of the foundation pit bottom plate and an anti - floating pile soil part on the lower side of the foundation pit bottom plate; on the surface of the anti - floating pile soil part in contact with the soil, there are a number of anti - floating reinforcement bodies distributed circumferentially along the anti - floating pile body; on the anti - floating pile soil part, there are also water seepage holes communicating the outside of the anti - floating pile body and the inside of the anti - floating pile body; the anti - floating reinforcement bodies and the water seepage holes are arranged at intervals along the axial direction of the anti - floating pile body; the drainage hole is arranged in the anti - floating pile fixed part;

[0008] The drainage device is used to drain the water infiltrated into the anti - floating pile to the outside through the drainage hole.

[0009] Further, the anti - floating reinforcement body is semi - circular.

[0010] Further, it also includes geotextile.

[0011] Further, the geotextile is arranged on the surface of the water seepage hole facing the soil side.

[0012] Further, the geotextile is also arranged at the bottom of the anti - floating pile body.

[0013] Further, the drainage device includes a water pressure detection device, a water extraction pipe, and a water pump.

[0014] The water pressure detection device is arranged inside the bottom of the anti - floating pile body for detecting the water pressure inside the anti - floating pile body. One end of the water extraction pipe is inserted into the bottom of the anti - floating pile body through the drainage hole, and the water pump is placed outside the anti - floating pile body and connected to the other end of the water extraction pipe.

[0015] The utility model realizes the drainage function of the anti - floating pile by setting seepage holes and a drainage device on the anti - floating pile. By arranging a number of anti - floating reinforcement bodies outside the anti - floating pile, the friction between the anti - floating pile and the soil can be increased, and the anti - floating capacity can be improved, while the drainage function is realized and the anti - floating effect is enhanced. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a front view of an anti - floating pile with drainage and enhanced anti - floating capacity of the present utility model;

[0018] Figure 2 It is a bottom view of an anti - floating pile with drainage and enhanced anti - floating capacity of the present utility model;

[0019] Figure 3 It is a structural diagram of the water pump of the present utility model;

[0020] In the figure, 1. Anti - floating pile body; 2. Anti - floating reinforcement body; 3. Geotextile; 4. Seepage hole; 5. Water pressure detection device; 6. Drainage hole; 7. Water extraction pipe; 8. Water pump; 81. Water inlet; 82. Water outlet; 83. Junction box; 84. Fixed base; 85. Cooling air hood; 86. Water pump body. Detailed Embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] This embodiment provides an anti-floating pile with drainage and enhanced anti-floating ability, as Figure 1 shown, including: an anti-floating pile body 1, an anti-floating reinforcement body 2, a water seepage hole 4, a drainage hole 6, and a drainage device;

[0023] The anti-floating pile body 1 includes an anti-floating pile fixed part on the upper side of the foundation pit bottom plate and an anti-floating pile soil body part on the lower side of the foundation pit bottom plate; on the surface of the anti-floating pile soil body part in contact with the soil body, there are a plurality of anti-floating reinforcement bodies 2 distributed along the circumference of the anti-floating pile body 1; on the anti-floating pile soil body part, there is also a water seepage hole 4 communicating the outside of the anti-floating pile body 1 and the inside of the anti-floating pile body 1; the anti-floating reinforcement body 2 and the water seepage hole 4 are arranged at intervals along the axial direction of the anti-floating pile body; the drainage hole 6 is arranged in the anti-floating pile fixed part;

[0024] The drainage device is used to drain the water infiltrated into the anti-floating pile to the outside through the drainage hole 6.

[0025] Specifically, the anti-floating pile body includes a fixed part and a soil body part. The fixed part is located outside the soil body, and the soil body part is inserted into the soil body. Taking the actual foundation pit bottom plate as the boundary, on the pile body inserted into the soil body, there are a plurality of anti-floating reinforcement bodies 2 distributed along the circumference of the anti-floating pile body 1. On the pile body inserted into the soil body, there are also the water seepage holes (4) and the water seepage hole 4 communicating the outside of the anti-floating pile body and the inside of the anti-floating pile body. The anti-floating reinforcement body 2 and the water seepage hole 4 are arranged at intervals. The number and spacing of the anti-floating reinforcement bodies and the water seepage holes to be applied can be selected according to the actual situation. The water seepage holes are used to collect the groundwater in the soil body. The drainage holes are arranged in the fixed part of the anti-floating pile body. For the convenience of placing the drainage device, in this embodiment, the drainage holes are arranged at the position where the fixed part meets the foundation pit bottom plate; a part of the drainage device enters the bottom of the anti-floating pile body through the drainage holes for pumping water, and a part is placed on the foundation pit bottom plate to drain the groundwater in the anti-floating pile.

[0026] In a specific embodiment, the anti-floating reinforcement body 2 is semi-circular.

[0027] The part of the anti-floating pile body located under the foundation pit floor penetrates into the soil, and the semi-circular anti-floating reinforcement is wrapped by the soil, which can effectively increase the contact area between the anti-floating pile and the soil, increase the friction force between the anti-floating pile and the soil, and the reinforcement is inserted into the soil, which can play a role in strengthening and supporting the anti-floating pile, further enhancing the anti-floating performance; setting the semi-circular structure can reduce the disturbance to the soil when inserting into the soil, enabling the soil to return to its original state faster and saving the time for pre-construction preparation.

[0028] In a specific embodiment, such as Figure 1 and Figure 2 shown, it further includes a geotextile 3, and the geotextile 3 is arranged on the surface of the side of the water seepage hole 4 facing the soil and the bottom of the anti-floating pile body 1.

[0029] Setting the geotextile on the outside of the water seepage hole and the bottom of the anti-floating pile can block the soil particles outside the anti-floating pile; wrapping the geotextile around the bottom of the anti-floating pile body before inserting the anti-floating pile into the soil can ensure that the internal soil particles are reduced after the anti-floating pile is inserted into the soil, and at the same time ensure the collection and discharge of groundwater to ensure the drainage effect.

[0030] In a specific embodiment, the drainage device includes a water pressure detection device 5, a water extraction pipe 7 and a water pump 8;

[0031] The water pressure detection device 5 is arranged inside the bottom of the anti-floating pile body 1 for detecting the water pressure inside the anti-floating pile body 1. One end of the water extraction pipe 7 is inserted into the bottom of the anti-floating pile body 1 through the drainage hole 6, and the water pump 8 is placed outside the anti-floating pile body 1 and connected to the other end of the water extraction pipe 7.

[0032] The water pressure detection device 5 is placed inside the bottom of the anti-floating pile before inserting the anti-floating pile into the soil, and after inserting into the soil, it detects the water pressure inside the anti-floating pile in real time, and then calculates the water level situation of the groundwater inside the anti-floating pile. When the water level of the groundwater reaches the height of the lowest layer of water seepage holes set, the water pump is turned on, and the water inside is pumped out through the water extraction pipe, and the water is discharged to a pre-set sump, and the water is pumped away through a water pump, and a drainage ditch is dug along the periphery or the center of the pit bottom, and then discharged from the construction site.

[0033] In a specific embodiment, such as Figure 3 shown, the water pump 8 is connected to the water extraction pipe 7 through one end of the water inlet 81, and after the water enters, the water flows through the other end of the water inlet 81 and enters the water outlet 82 and is discharged to the outside; a junction box 83 is arranged on the water pump body 86 of the water pump 8, and the water pump also has a fixed base 84, and is placed on the foundation pit floor through the fixed base 84, and the water pump also has a heat dissipation air hood 85 to reduce the temperature of the water pump during use.

[0034] In this embodiment, the pump is placed on the foundation pit floor, the water extraction pipe is connected to the water inlet, and the pump is turned on to extract the groundwater inside the anti-floating steel pipe pile, so as to facilitate the subsequent entry of groundwater into the anti-floating steel pipe pile, reduce the buoyancy of the groundwater on the foundation pit floor, and accelerate the drainage consolidation speed after the completion of the foundation pit excavation, providing a reliable guarantee for the smooth progress and safety of the project construction, and shortening the drainage consolidation time after the completion of the foundation pit excavation.

[0035] The utility model is used in the process of foundation pit construction in water-rich areas, and the usage process is as follows:

[0036] According to the actual construction situation, several seepage holes are dug in the part of the anti-floating pile body inserted into the soil to connect the inside and outside of the anti-floating pile body. The seepage holes are wrapped with geotextiles to prevent soil particles from entering the anti-floating pile through the seepage holes. According to the actual situation, several semi-circular anti-floating reinforcement bodies are arranged along the circumference of the anti-floating pile body. A water pressure detection device is pre-placed inside the bottom of the anti-floating pile, and then the bottom of the anti-floating pile is wrapped with geotextiles to prevent soil particles from entering the anti-floating pile after being inserted into the soil and affecting the drainage effect. After setting, the anti-floating pile is inserted into the soil. A drainage hole is dug in the part of the anti-floating pile outside the soil, and the water extraction pipe is inserted into the bottom of the anti-floating pile through the drainage hole. A pump is placed around the anti-floating pile and connected to the water extraction pipe. The water pressure inside the anti-floating pile is detected by the water pressure detection device, and then the groundwater level inside the anti-floating pile is calculated. When the groundwater level collected reaches the height of the lowest layer of seepage holes set, the pump is turned on to extract the water inside through the water extraction pipe, and the water is discharged into the pre-set sump, and then pumped away by a water pump. A drainage ditch is dug along the periphery or the center of the pit bottom to drain the construction site.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-floating pile with drainage and enhanced anti-floating ability, characterized in that: include: An anti-floating pile body (1), an anti-floating reinforcement body (2), a water seepage hole (4), a drainage hole (6) and a drainage device; The anti-floating pile body (1) comprises an anti-floating pile fixing part located on the upper side of the foundation pit bottom plate and an anti-floating pile soil part located on the lower side of the foundation pit bottom plate; a side of the anti-floating pile soil part in contact with the soil is provided with a plurality of anti-floating reinforcement bodies (2) distributed along the circumference of the anti-floating pile body (1); the anti-floating pile soil part is also provided with the seepage hole (4) connecting the outer side of the anti-floating pile body (1) and the inner side of the anti-floating pile body (1); the anti-floating reinforcement body (2) and the seepage hole (4) are arranged at intervals along the axial direction of the anti-floating pile body; the drainage hole (6) is provided on the anti-floating pile fixing part; The drainage device is used to discharge water that has infiltrated the anti-floating pile to the outside through the drainage hole (6).

2. The anti-floating pile with drainage and enhanced anti-floating ability according to claim 1, characterized in that: The anti-floating reinforcement body (2) is semicircular.

3. The anti-floating pile with drainage and enhanced anti-floating ability according to claim 1, characterized in that: Also included is a geotextile (3).

4. The anti-floating pile with drainage and enhanced anti-floating ability according to claim 3, characterized in that: The geotextile (3) is arranged on the surface of the water seepage hole (4) facing the soil.

5. The anti-floating pile with drainage and enhanced anti-floating ability according to claim 3, characterized in that: The geotextile (3) is also arranged at the bottom of the anti-floating pile body (1).

6. The anti-floating pile with drainage and enhanced anti-floating ability according to claim 1, characterized in that: The drainage device comprises a water pressure detection device (5), a water pumping pipe (7) and a water pump (8); The water pressure detection device (5) is arranged on the inner side of the bottom of the anti-floating pile body (1) and is used to detect the water pressure inside the anti-floating pile body (1). One end of the water pumping pipe (7) is inserted into the bottom of the anti-floating pile body (1) through the drainage hole (6). The water pump (8) is placed outside the anti-floating pile body (1) and is connected to the other end of the water pumping pipe (7).

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