CN209603202U - Basement anti-floating drainage structure - Google Patents

Abstract

The utility model relates to a basement anti-floating drainage structure, which comprises a concrete cushion, a bottom plate structure layer, an outdoor wall of a basement, a central water filter pipe, a peripheral water filter pipe, a horizontal communication pipe, a water collection pipe, a water collection pipe, a water collection well and a water pump; The bottom ends of the water pipes and the surrounding water filter pipes are closed, and the side walls are provided with water filter holes; multiple peripheral water filter pipes are distributed around the basement area, and the top protrudes from the floor structure layer; multiple middle water filter pipes are distributed in arrays within the basement area. The top protrudes from the concrete cushion, and the top is sealed with PVC cleaning plug; the horizontal connecting pipe is located under the concrete cushion, connecting the middle water filter pipe and the surrounding water filter pipes; The water filter pipes are connected with each other; one end of the water collection pipe is connected with the water collection pipe, and the other end extends into a water collection well outside the basement wall; the water pump is located in the water collection well. The utility model has the advantages of simple construction and less site occupation.

Description

Basement anti-floating drainage structure

technical field

The utility model relates to the technical field of basement anti-floating construction, in particular to a basement anti-floating drainage structure.

Background technique

The basement structure generally forms a closed box, and due to the existence of groundwater, it will be subjected to upward water buoyancy under the action of water pressure. For underground structural engineering with deep buried depth and high anti-floating water level, anti-floating design is an important part of structural design. If the anti-floating structure does not meet the requirements, it may cause the underground structure to float up and the bottom plate to crack, resulting in different degrees of underground structure damage.

At present, the anti-floating design in my country mainly adopts the "anti-floating" method, that is, to determine the highest anti-floating water level, and the difference between the structure's self-weight and water buoyancy prevents the basement structure from floating by using anti-lift piles, anti-floating anchors, or adding counterweights. In recent years, blind ditch drainage and anti-floating structures have been developed. The existing technical measures for blind ditch drainage and anti-floating structures are to set intercepting ditches and water collection wells between the outer wall of the basement and the retaining wall of the foundation pit. However, the blind ditch has a complex structure, including blind ditch pipes, geotextiles, and gravel layers laid around the blind ditch pipes, etc., requiring high construction requirements and many processes. In addition, the existing blind ditch drainage anti-floating structure needs to use a large space between the basement exterior wall and the foundation pit retaining wall. However, with the increasing building density in the city, the area of available space during the construction of new buildings is also increasing. It is getting smaller and smaller, and the vertical distance between the retaining wall of the foundation pit and the outer wall of the basement is getting smaller and smaller. Therefore, the existing blind ditch drainage anti-floating structure is often not suitable. It is necessary to design a new type of basement anti-floating drainage that is simple in construction and occupies less space. structure.

Utility model content

The purpose of the utility model is to provide a basement anti-floating drainage structure with simple construction and less space occupation.

The purpose of the above-mentioned utility model of the utility model is achieved through the following technical solutions: a basement anti-floating drainage structure, including a concrete cushion, a floor structure layer, a basement exterior wall, a central water filter pipe, a peripheral water filter pipe, a horizontal connecting pipe, Water collection pipes, water collection pipes, water collection wells and water pumps; the middle water filter pipes and surrounding water filter pipes are vertically inserted into the soil below the concrete cushion, the bottom ends of both are closed, and water filter holes are opened on the side walls; The four peripheral water filter pipes are distributed around the basement range, and the tops protrude from the floor structure layer; a number of middle water filter pipes are distributed in the basement in an array, the tops protrude from the concrete cushion, and the tops are sealed with PVC cleaning plugs; the horizontal connecting pipes are located at Below the concrete cushion, multiple horizontal connecting pipes connect the central water filter pipe and the surrounding water filter pipes to each other; the water collection pipe is located above the floor structure layer, and multiple water collection pipes connect the two adjacent peripheral water filter pipes to each other to form a basement wall. An annular water collection circuit; one end of the water collection pipe communicates with the water collection pipe, and the other end extends into the water collection well located outside the basement wall; the water pump is located in the water collection well.

By adopting the above-mentioned technical scheme, all water collection and catchment structures are arranged under the basement, which has the advantages of less space required and stronger applicability compared with the prior art in which an anti-floating drainage structure is installed on the outer wall of the basement. Moreover, the laying of the rigid horizontal connecting pipe is more efficient than the construction of the blind ditch in the prior art, and the rigid pipe can better prevent the basement from sinking than the flexible plastic blind pipe.

The utility model is further configured as follows: the horizontal communication pipe is a rigid pipe body.

By adopting the above technical solution, the load transmitted from the top basement can be better carried.

The utility model is further configured to: further include a flexible connecting pipe joint, and the flexible connecting pipe joint is located between the horizontal connecting pipe and the central water filter pipe and between the horizontal connecting pipe and the peripheral water filtering pipe.

By adopting the above technical solution, it is possible to avoid fractures at joints between the rigid horizontal communication pipe, the central water filter pipe and the surrounding water filter pipes.

The utility model is further configured as follows: the central water filter pipe and the surrounding water filter pipes are both double-layer pipes provided with an annular cavity, and a filter material layer is arranged in the annular cavity.

By adopting the above technical solution, groundwater can be collected more efficiently, and blockage caused by too much mud and sand in the drainage pipe network can be avoided.

The utility model is further configured as follows: the bottoms of the central water filter pipe and the peripheral water filter pipes are provided with sharp ends.

By adopting the above technical scheme, it is convenient for the central water filter pipe and the surrounding water filter pipes to be better inserted into the ground.

The utility model is further configured as follows: the outer periphery of the peripheral water filter pipe is fixedly connected with a ring-shaped water-stop plate, and the ring-shaped water-stop plate is located in the structural layer of the bottom plate.

By adopting the above technical scheme, the groundwater is prevented from penetrating upwards along the outer wall of the peripheral water filter pipe.

The utility model is further set as: the horizontal connecting pipe is a PE pipe.

By adopting the above technical solution, the PE pipe has the advantages of high strength and good durability, and can prevent the subsidence of the basement.

The utility model is further configured as follows: the flexible connecting pipe joint is a corrugated pipe.

By adopting the above technical solution, the corrugated pipe has the advantages of high strength and good durability, and can be deformed to a certain extent, so as to avoid fracture at the joint between the rigid horizontal communication pipe, the central water filter pipe and the surrounding water filter pipes.

In summary, the beneficial technical effects of the utility model are:

1. Since all water collection and catchment structures are arranged under the basement, compared with the prior art, the installation of anti-floating drainage structures on the outer wall of the basement has the advantages of less space required and stronger applicability.

2. The laying of rigid horizontal connecting pipes is more efficient than the construction of blind trenches in the prior art, and rigid pipes can better prevent basement subsidence than flexible plastic blind pipes.

3. The setting of double-layer water filter pipes improves the water collection efficiency, prevents mud and sand from clogging the drainage pipes, and at the same time prevents the loss of soil at the bottom of the basement and causes the basement to settle.

Description of drawings

Fig. 1 is the overall structural schematic diagram of the anti-floating drainage structure of the basement;

Fig. 2 is A-A sectional view among Fig. 1;

Fig. 3 is B-B sectional view among Fig. 1;

Fig. 4 is a partial enlarged view of A in Fig. 1;

Fig. 5 is a structural schematic diagram highlighting the double-layer water filter pipe.

In the figure, 11. Concrete cushion; 12. Floor structure layer; 13. Basement exterior wall; 2. Central water filter pipe; 3. Peripheral water filter pipe; 31. Water stop board; 4. Horizontal connecting pipe; 6. Water collection pipe; 7. Water collection well; 8. Water pump; 91. Filter hole; 92. PVC cleaning plug; 93. Flexible connecting pipe joint; 94. Filter material layer; 95. Tip.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Figure 1, it is a basement waterproof structure disclosed by the utility model, which includes a concrete cushion 11, a floor structure layer 12, a basement exterior wall 13, and also includes a central water filter pipe 2, a peripheral water filter pipe 3, a horizontal communication pipe 4, a sink Water pipe 5, water collection pipe 6, water collection well 7 and water pump 8; the central water filter pipe 2 and peripheral water filter pipe 3 are all vertically inserted into the soil below the concrete cushion 11, the bottom ends of both are closed, and the side walls are all provided with filters. Water hole 91. Combining Figure 1 and Figure 2, a plurality of peripheral water filter pipes 3 are distributed in the four surrounding areas of the basement, with the top protruding from the floor structure layer 12; a plurality of middle water filter pipes 2 are distributed in an array within the basement, with the top protruding from the concrete pad Layer 11, the top is sealed with PVC cleaning plug 92; the horizontal connecting pipe 4 is located under the concrete cushion layer 11, and a plurality of horizontal connecting pipes 4 connect the middle water filter pipe 2 and the peripheral water filter pipe 3; the water collection pipe 5 is located in the floor structure layer 12 Above, combined with Figure 1 and Figure 3, a plurality of water collection pipes 5 communicate with two adjacent peripheral water filter pipes 3 to form an annular water collection circuit close to the basement exterior wall 13; one end of the water collection pipe 6 communicates with the water collection pipe 5 , and the other end extends into the sump well 7 outside the basement wall 13; the water pump 8 located in the sump well 7 pumps the collected water into the municipal drainage pipe network.

The working principle of the utility model is: groundwater enters into the water filter pipe through the water filter hole 91 inserted into the middle part of the soil filter pipe 2 and the side wall of the peripheral water filter pipe 3, and the horizontal connecting pipe 4 leads all the groundwater to the peripheral water filter pipe 3 ; Because the conventional water level of groundwater is higher than the basement floor structure layer 12, so under hydrostatic pressure, groundwater is pressed into the water collection pipe 5 and the water collection pipe 6, and is discharged to the water collection well 7; the water pump 8 in the water collection well 7 will collect the Groundwater is drained into the municipal pipe network. Thereby, the water at the bottom of the basement is drained and the basement is prevented from floating.

Since all water collection and catchment structures (except the water collection well 7) are arranged under the basement, compared with the prior art, the installation of anti-floating drainage structures on the outer wall 13 of the basement has the advantages of less space required and stronger applicability . Moreover, the laying of the rigid horizontal connecting pipe is more efficient than the construction of the blind ditch in the prior art, and the rigid pipe can better prevent the basement from sinking than the flexible plastic blind pipe.

The water collection well 7 occupies a small plane area, and can be arranged at any position around the basement, and the arrangement is flexible. The water collection well 7 is arranged on the outside of the basement exterior wall 13 and can prevent the water from flowing into the basement when the well is full.

After the construction of the concrete cushion 11 and before the construction of the floor structure layer 12, the concrete cushion 11 is easily destroyed by the buoyancy of the groundwater, so the middle water filter pipe 2 and the peripheral water filter pipe 3 arranged in matrix rows can collect the groundwater, and then according to Due to factors such as the construction environment on site and the pouring sequence of the concrete cushion 11, the top nozzles of the central water filter pipe 2 and the peripheral water filter pipe 3 are temporarily closed, partly connected to the temporary water collection pipe 5, and then the water is discharged into the municipal pipe network. Damage to the concrete pad 11 is thereby prevented. 1 and 3, after the construction of the concrete cushion 11 is completed, the top of the middle water filter pipe 2 is completely closed with PVC cleaning plug 92, and then the bottom plate structure layer 12 concrete is poured, and then the water collection pipe 5 is installed to close the surrounding water filter pipes. 3 connected, finally discharged in the water collection well 7. The top of middle part water filter pipe 2 is all blocked with PVC cleaning stopper 92, and carries out gland with floor structure layer 12 concrete, thereby has prevented groundwater from entering basement from the top of middle part water filter pipe 2. Because the water collecting pipe 5 is only installed on the periphery of the basement close to the basement exterior wall 13, thereby ensuring the flatness of the middle part of the basement, the utilization of the basement space is arranged.

Referring to Fig. 1 and Fig. 4, the horizontal communication pipe 4 may be a rigid PE pipe, so as to better bear the load from the top basement. However, due to the influence of uneven settlement of the entire building, the joints between the rigid PE pipe and the middle filter pipe 2 and the surrounding filter pipe 3 are prone to breakage. A flexible connection pipe joint 93 is provided, which can be a corrugated pipe, one end extends into the horizontal communication pipe 4, and one end extends into the pipe from the side wall of the middle part water filter pipe 2 or the peripheral water filter pipe 3.

Further, as shown in Figure 5, in order to collect groundwater more efficiently and avoid blockage caused by too much mud and sand in the drainage pipe network, the central water filter pipe 2 and the peripheral water filter pipe 3 are double-layered with annular cavities. tube, and a filter material layer 94 is arranged in the annular cavity to better filter the groundwater. The filter material can be gravel or sand pebbles with better gradation. The arrangement of double-layer pipes can also have the beneficial effect of preventing the basement from sinking due to soil loss at the bottom of the basement.

In order to facilitate the insertion of the central water filter pipe 2 and the peripheral water filter pipe 3 into the ground better, the bottom ends of the central water filter pipe 2 and the peripheral water filter pipe 3 are provided with a pointed tip 95 .

As shown in FIG. 5 , since the peripheral water filter pipe 3 penetrates the concrete cushion 11 and the floor structure layer 12 , groundwater will permeate upward along the outer wall of the peripheral water filter pipe 3 . Therefore, the outer circumference of the peripheral water filter pipe 3 is welded with an annular water stop plate 31 , and the annular water stop plate 31 is located in the bottom plate structure layer 12 . When the concrete of the floor structure layer 12 is poured, the ring-shaped water stop plate 31 is wrapped, thereby cutting off the path of water infiltration, and playing a waterproof role.

The embodiments of this specific embodiment are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model accordingly: all equivalent changes made according to the structure, shape and principle of the present utility model are all applicable. Should be covered within the protection scope of the present utility model.

Claims (8)

1. a kind of basement anti-floating discharge structure, including concrete cushion (11), floor structure layer (12) and outer wall of basement (13), it is characterised in that: further include middle part filter pipe (2), periphery filter pipe (3), horizontal communicating pipe (4), collection pipe (5), collection Water pipe (6), sump (7) and water pump (8)；The middle part filter pipe (2) and periphery filter pipe (3) are inserted vertically into concrete In bed course (11) soil body below, the two bottom end is all closed, side wall opens up filtration hole (91)；Multiple periphery filter pipes (3) point Cloth stretches out floor structure layer (12) at the periphery of basement range, top；Multiple middle part filter pipe (2) arrays are distributed in underground Within the scope of room, concrete cushion (11) are stretched out on top, and top PVC cleans (92) closing of blocking up；Horizontal communicating pipe (4) is located at mixed Below solidifying soil padding (11), middle part filter pipe (2) and periphery filter pipe (3) are interconnected by more horizontal communicating pipes (4)；Charge for remittance Pipe (5) is located above floor structure layer (12), and two adjacent periphery filter pipes (3) are interconnected by more collection pipes (5), shape At the cyclic annular charge for remittance circuit close to outer wall of basement (13)；One end of collector pipe (6) is connected to collection pipe (5), and the other end protrudes into In the sump (7) external to room exterior wall (13) located underground；Water pump (8) is located in sump (7).

2. basement anti-floating discharge structure according to claim 1, it is characterised in that: level communicating pipe (4) is rigid Property tube body.

3. basement anti-floating discharge structure according to claim 2, it is characterised in that: further include flexible connection pipe fitting (93), the flexible connection pipe fitting (93) is located between horizontal communicating pipe (4) and middle part filter pipe (2) and level communicating pipe (4) between periphery filter pipe (3).

4. basement anti-floating discharge structure according to claim 1, it is characterised in that: middle part filter pipe (2) and periphery filter Water pipe (3) is the bimetallic tube for being provided with ring cavity, and filter material layer (94) are provided in ring cavity.

5. basement anti-floating discharge structure according to claim 1, it is characterised in that: middle part filter pipe (2) and periphery filter Water pipe (3) bottom end is provided with tip (95).

6. basement anti-floating discharge structure according to claim 1, it is characterised in that: outside the periphery filter pipe (3) It is connected in week cyclic annular seal plate (31), cyclic annular seal plate (31) is located in floor structure layer (12).

7. basement anti-floating discharge structure according to claim 2, it is characterised in that: horizontal communicating pipe (4) is PE pipe.

8. basement anti-floating discharge structure according to claim 3, it is characterised in that: flexible connection pipe fitting (93) is wave Line pipe.