CN216973464U

CN216973464U - Emergent inspection shaft of hydrophobic french drain of basement bottom plate

Info

Publication number: CN216973464U
Application number: CN202220196795.8U
Authority: CN
Inventors: 曹彦凯; 陆春华; 徐�明; 林山
Original assignee: Tus-Design Group Co ltd
Current assignee: Tus-Design Group Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-07-15
Anticipated expiration: 2032-01-20

Abstract

The utility model discloses a drainage blind ditch emergency inspection well for a basement bottom plate, which comprises a well body penetrating through the basement bottom plate and a basement top plate, wherein concrete cushion layers are arranged at the bottom of the well body and the bottom of the basement bottom plate, the concrete cushion layers are provided with communication ports communicating the blind ditch with the interior of the well body, a blind pipe and a filter structure are arranged in the blind ditch, the filter structure is arranged on the outer side of the blind pipe, an upper broken stone filter layer is arranged at the top of the filter structure, and the upper broken stone filter layer is positioned at the communication ports. The underground blind ditch can be reliably monitored, maintained and overhauled by arranging the inspection well, the underground water level and the operation effect of the drainage blind ditch can be conveniently observed from the top of the basement outdoors, and if the underground water level is continuously increased due to the unfavorable conditions of blockage, extreme rainstorm weather and the like of the underground blind ditch of the basement bottom plate, reliable emergency rescue control measures can be conveniently adopted.

Description

Emergent inspection shaft of hydrophobic french drain of basement bottom plate

Technical Field

The utility model belongs to the field of buildings, and particularly relates to a basement bottom plate drainage blind ditch emergency inspection well.

Background

In recent years, the building industry is developed vigorously, the size of buildings is larger and larger, the size and the depth of basements are larger and larger, and the influence of underground water on underground buildings is more and more prominent. The anti-floating design of the basement is a very key content in the structural design of the basement, and the reasonable determination of the anti-floating water level of the basement is directly related to the structural safety, the use and the cost control of the basement. Therefore, under the condition that construction units pursue cost control increasingly, in construction sites with certain height difference, the drainage pressure reduction and floatation reduction scheme of the basement blind ditches is applied more and more, wherein the drainage pressure reduction and floatation reduction scheme includes the application of the drainage blind ditch scheme arranged below the bottom plate of the basement. However, the reliability monitoring and the maintenance of the underground blind ditch of the basement bottom plate in the using process have no effective reliable measures, even when the underground water level of the underground blind ditch of the basement bottom plate is blocked and continuously rises in extreme rainstorm weather, no reliable emergency control measures exist, if the underground blind ditch of the basement is found to float upwards and crack and seep water, the later-period accident treatment and the engineering repair workload, period and cost are very large.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides a basement bottom plate drainage blind ditch emergency inspection well.

The technical scheme of the utility model is as follows:

the utility model provides a hydrophobic french drain of basement bottom plate emergency inspection well, is including the well body that runs through basement bottom plate and basement roof, the bottom of the well body with the bottom of basement bottom plate is equipped with the concrete bed course, the concrete bed course be equipped with the intercommunication french drain with the inside intercommunication mouth of well, be equipped with cecum and filtration in the french drain, filtration locates the outside of cecum, filtration's top is equipped with the rubble filter layer, it is located to go up the rubble filter layer intercommunication mouth department.

Preferably, the filtration is including the parcel first geotechnological cloth layer in the blind pipe outside, the outside on first geotechnological cloth layer is equipped with down the rubble filter layer, the outside parcel of rubble filter layer has the second geotechnological cloth layer down, the second geotechnological cloth layer is equipped with well coarse sand layer respectively along blind ditch length direction's both sides.

Preferably, the upper gravel filter layer extends upwardly into the interior of the well body.

Preferably, the well body is made of reinforced concrete, and a double-layer bidirectional reinforcing bar is arranged in the reinforced concrete of the well body.

Preferably, the top of the top plate of the basement is provided with a soil covering layer, the top height of the well body is greater than the top height of the soil covering layer, and the distance between the top of the well body and the top of the soil covering layer is 300-500 mm.

Preferably, the top of the well body is provided with a cover plate.

Preferably, the inner wall of the well body is equipped with first waterproof layer, the top surface of the well body is equipped with the second waterproof layer, basement roof top the well body outer wall is equipped with the third waterproof layer.

Preferably, the lower extreme of well body inside is equipped with the brick protective layer, just the brick protective layer is located the top of concrete cushion.

Preferably, brick protective layer top the internal wall of well still is equipped with the extruded polystyrene cystosepiment, just the extruded polystyrene cystosepiment is located the outside of first waterproof layer.

Preferably, the blind ditch comprises a blind ditch bottom layer and blind ditch side walls located on two sides of the top of the blind ditch bottom layer, and a plurality of water passing seams are arranged on the blind ditch side walls.

The utility model has the beneficial effects that:

(1) according to the underground water drainage system, the underground blind ditch under the basement bottom plate can be reliably monitored, maintained and overhauled through the arrangement of the inspection well, the underground water level and the drainage blind ditch operation effect can be conveniently observed from the top of the basement outdoors, and if the underground water level is continuously increased due to the unfavorable conditions such as blockage of the underground blind ditch, extreme rainstorm weather and the like, reliable emergency rescue control measures can be conveniently and timely adopted, for example, underground water is quickly pumped and drained to the outside by using a pump, the underground water level is controlled, and the floating condition of the underground reservoir is avoided;

(2) the interior of the inspection well body is communicated with the blind ditch, the blind pipe is arranged in the blind ditch, and underground water can be ensured to directly seep out of the inspection well body through the laid gravel and medium coarse sand through the arrangement of the filtering structure, the upper gravel filtering layer and the like.

Drawings

The utility model is further described with reference to the following figures and examples:

FIG. 1 is a schematic view of the construction of an inspection well of the present invention;

FIG. 2 is a schematic view of the relationship of the inspection well to the blind ditch of the present invention;

fig. 3 is a schematic sectional view in the direction of a-a in fig. 2.

Labeled in the figure as: 1. a well body; 2. a basement floor; 3. a basement roof; 4. a concrete cushion; 5. a communication port; 6. blind ditches; 7. a blind pipe; 8. putting a gravel filter layer; 9. a first geotextile layer; 10. a lower gravel filter layer; 11. a second geotextile layer; 12. a medium-coarse sand layer; 13. covering a soil layer; 14. a cover plate; 15. a first waterproof layer; 16. a second waterproof layer; 17. a third water layer; 18. extruding a polystyrene foam board; 19. laying a brick protective layer; 20. side walls of the blind ditch; 21. the bottom layer of the blind ditch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 3, an emergency inspection well for a basement floor drain blind drain comprises a well body 1 penetrating through a basement floor 2 and a basement roof 3, wherein a concrete cushion layer 4 is arranged at the bottom of the well body 1 and the bottom of the basement floor 2, the concrete cushion layer 4 is provided with a communication port 5 communicating the blind drain 6 with the inside of the well body 1, a blind pipe 7 and a filter structure are arranged in the blind drain 6, the filter structure is positioned at the outer side of the blind pipe 7, an upper gravel filter layer 8 is arranged at the top of the filter structure, the upper gravel filter layer 8 is positioned at the communication port 5, the upper gravel filter layer 8 extends upwards to the inside of the well body 1, the filter structure comprises a first geotextile layer 9 wrapping the outer side of the blind pipe 7, a lower gravel filter layer 10 is arranged at the outer side of the first geotextile layer 9, a second geotextile layer 11 is wrapped at the outer side of the lower gravel filter layer 10, and middle coarse sand layers 12 are respectively arranged at the two sides of the second geotextile layer 11 along the length direction of the blind drain, through the arrangement of the filtering structure, the upper gravel filtering layer 8 and the like, the underground water is ensured to be directly seeped out in the inspection well body 1 through the paved gravel and medium coarse sand.

The well body 1 is made of reinforced concrete with good anti-permeability performance, and a double-layer bidirectional reinforcing bar is arranged in the reinforced concrete of the well body 1. In addition, the top of the basement top plate 3 is provided with a soil covering layer 13, the top height of the well body 1 is greater than the top height of the soil covering layer 13, the distance between the top of the well body 1 and the top of the soil covering layer 13 is 300-500mm, the top of the well body 1 is provided with a cover plate 14, and the cover plate 14 is required to be high in durability, have normally closed protective measures and prevent leakage of the cover plate 14. The arrangement of the cover plate 14 and the requirement of the top height of the well body 1 help to prevent rainwater from falling into the well body 1 in rainy days and prevent rainwater gathered in heavy rainfall from being poured into the well body 1.

The inner wall of the well body 1 is equipped with first waterproof layer 15, the top surface of the well body 1 is equipped with second waterproof layer 16, this top surface also with the contact surface of

apron

14, 1 outer wall of the well body of 3 tops of basement roof is equipped with third prevention water layer 17, the lower extreme of the well body 1 inside is equipped with brick protective layer 19, and brick protective layer 19 is located the top of

concrete cushion

4, 1 inner wall of the well body of brick protective layer 19 top still is equipped with extruded polystyrene foam board 18, and extruded polystyrene foam board 18 is located the outside of first waterproof layer 15.

In the practical application process, the inspection well can be arranged at the intersection of the drainage blind ditches 6 below the basement bottom plate 2 or at the position of an important node, the building basement function arrangement and the landscape scheme of the basement top plate 3 are coordinated, the three can be perfectly integrated, the blind ditches 6 are in the shapes shown in figures 2 and 3, each blind ditch 6 comprises a blind ditch bottom layer 21 and blind ditch side walls 20 positioned on two sides of the top of the blind ditch bottom layer, the blind ditch side walls 20 and the blind ditch bottom layers 21 form grooves of the blind ditches, and a plurality of water passing seams are arranged on the blind ditch side walls 20 to ensure that underground water can flow into the blind ditches 6. The inspection well body 1 can adopt square or circular as required, and the net size of the well body 1 needs to be suitable, should not be too little, for example when adopting square well body 1, the net size that the inboard correspondence of well body 1 can be designed to be not less than 1000 mm x 800mm, also can increase the size according to actual demand. This embodiment can carry out reliability monitoring to 2 lower french drains of basement bottom plate through setting up of inspection shaft, maintain and overhaul, also be convenient for observe groundwater level and hydrophobic french drain operation effect from the basement top is outdoor, if when unfavorable circumstances such as blockking up and extreme torrential rain weather appear in basement bottom plate french drain and lead to groundwater level constantly to rise, be convenient for in time take reliable emergent control measures of speedily carrying out rescue work, for example, utilize the pump to pump off groundwater fast toward the outside, control groundwater level, avoid the storehouse come-up condition to appear, therefore under actual conditions, be equipped with stand-by power supply and emergent portable stand-by pump near the inspection shaft best, also set up obvious water level warning line in the well body. In addition, this inspection shaft be provided with help making hydrophobic step-down subtract and float the scheme more perfect, and the use risk reduces, increases the popularity of using, also is convenient for carry out the risk management and control, reduces engineering accident and takes place probability, reduces adverse social influence.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a hydrophobic french drain emergency inspection well of basement bottom plate, its characterized in that, including the well body that runs through basement bottom plate and basement roof, the bottom of the well body with the bottom of basement bottom plate is equipped with the concrete bed course, the concrete bed course be equipped with the intercommunication french drain with the intercommunication mouth of the internal portion of well, be equipped with cecum and filtration in the french drain, filtration locates the outside of cecum, filtration's top is equipped with the rubble filter layer, it is located to go up the rubble filter layer intercommunication mouth department.

2. The emergency inspection well for the basement bottom plate drainage blind ditch according to claim 1, wherein the filtering structure comprises a first geotextile layer wrapped outside the blind pipe, a lower broken stone filtering layer is arranged outside the first geotextile layer, a second geotextile layer is wrapped outside the lower broken stone filtering layer, and medium coarse sand layers are respectively arranged on two sides of the second geotextile layer along the length direction of the blind ditch.

3. The basement floor drain blind ditch emergency manhole of claim 1, wherein the upper gravel filter layer extends up to the inside of the well body.

4. The emergency inspection well for the basement floor drainage blind ditches as claimed in claim 1, wherein the well body is made of reinforced concrete, and a double-layer bidirectional reinforcing bar is arranged in the reinforced concrete of the well body.

5. The emergency inspection well for the basement floor drain blind drain as claimed in claim 1, wherein the top of the basement roof is provided with a soil covering layer, the height of the top of the well body is greater than that of the soil covering layer, and the distance between the top of the well body and the top of the soil covering layer is 300-500 mm.

6. The emergency manhole of the basement floor drain blind ditch according to claim 1, wherein a cover plate is arranged at the top of the manhole body.

7. The emergency inspection well for the hydrophobic blind ditches in the basement floor as claimed in claim 1, wherein a first waterproof layer is arranged on the inner wall of the well body, a second waterproof layer is arranged on the top surface of the well body, and a third waterproof layer is arranged on the outer wall of the well body above the top plate of the basement.

8. The emergency inspection well for the basement floor drain blind drain according to claim 7, wherein a brick protective layer is arranged at the lower end of the interior of the well body and is located at the top of the concrete cushion.

9. The emergency inspection well for the hydrophobic blind ditches in the basement floor as claimed in claim 8, wherein the inner wall of the well body above the brick protective layer is further provided with an extruded polystyrene foam board, and the extruded polystyrene foam board is positioned on the outer side of the first waterproof layer.

10. The basement bottom plate drainage blind ditch emergency inspection well according to claim 1, wherein the blind ditch comprises a blind ditch bottom layer and blind ditch side walls located on two sides of the top of the blind ditch bottom layer, and a plurality of water passing seams are formed in the blind ditch side walls.