CN218843144U

CN218843144U - Deep basal pit high water pressure drop well block structure

Info

Publication number: CN218843144U
Application number: CN202222669182.4U
Authority: CN
Inventors: 高桂林; 刘明浩; 孙占胜; 李睿达
Original assignee: China Third Metallurgical Group Co Ltd
Current assignee: China Third Metallurgical Group Co Ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-04-11
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a deep basal pit high water pressure drop well block structure, including setting up the precipitation well in the basal pit bottom surface, the inside of precipitation well is provided with a wall section of thick bamboo, the shutoff awl section of thick bamboo that does not have the face from top to bottom is provided with the ring flange in the wall section of thick bamboo, the ring flange passes through fixing bolt and wall section of thick bamboo fixed connection, the inside packing of shutoff awl section of thick bamboo has the waterproof anticorrosive concrete of micro-expansion, and be provided with the apron on this layer of concrete, the top of shutoff awl section of thick bamboo is fixed in the coping, carry out the shutoff through the coping, the condition emergence of reducible seepage in later stage, be convenient for carry out bottom plate surface decoration and follow-up construction, construction process has been simplified, construction cycle has been shortened greatly, just the utility model discloses the ring flange structure of department setting at a wall section of thick bamboo, fix the shutoff awl section of thick bamboo, a shutoff awl section of thick bamboo has been supported, avoided the shutoff awl section of thick bamboo to pour at the bottom plate because the shutoff that the different shutoff awl sections of thick bamboo caused all around the different dynamics of concrete placement is crooked, moreover, the steam generator is simple structure, high stability, and is simple and convenient for operation.

Description

Deep basal pit high water pressure drop well block structure

Technical Field

The utility model relates to a building foundation ditch construction technical field especially relates to a deep basal pit high water pressure drop well block structure.

Background

With the rapid development of the building industry, high-rise and super high-rise buildings are more and more, and deep foundation pit dewatering is more and more common. After the underground structure and the ground structure are constructed, the basement house and the foundation pit need to be backfilled, and the dewatering well needs to be plugged before backfilling. The conventional method is that a waterproof steel sleeve is placed at the wellhead of a precipitation well before a concrete cushion is poured, then gravel and sand are backfilled in the precipitation well, and finally 2m of backfilled micro-expansion fine-stone concrete is reserved, and construction is finished when the construction ground is made.

If the concrete is not compacted when the dewatering well is backfilled, the water pressure is high and the bottom plate is easy to leak after the dewatering underground water level is stopped rising, so that the soil at the center of the backfilled basement is soaked in water, the basement surface layer cannot be constructed, and the construction period is delayed. The constructed surface layer causes the quality problems of surface layer bulging, cracking and sinking, and similar problems not only cause the construction period lag and the maintenance difficulty to be large, but also increase the economic investment.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art not enough, the utility model provides a deep basal pit high water pressure drop well block structure adopts the shutoff to bore a section of thick bamboo to replace ordinary steel pipe commonly used through setting up precipitation well block structure, leaves a mouthful less at bottom plate surface behind the shutoff to carry out the shutoff through the coping, the condition of reducible seepage in later stage takes place, is convenient for carry out bottom plate surface decoration and follow-up construction, has simplified construction process, has shortened construction cycle greatly, just the utility model discloses flange plate structure in wall section of thick bamboo department setting fixes the shutoff awl section of thick bamboo, has supported the shutoff awl section of thick bamboo, has avoided the in-process of pouring at the bottom plate because the shutoff awl section of thick bamboo that the concrete placement dynamics difference led to the fact all around is crooked, simple structure, and stability is high, and is easy and simple to handle.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a deep basal pit high water pressure drop well block structure, is including setting up the precipitation well in the basal pit bottom surface, the inside of precipitation well is provided with a wall section of thick bamboo, the shutoff that does not have a face from top to bottom is provided with in the wall section of thick bamboo bores a section of thick bamboo, the top outside of a shutoff awl section of thick bamboo is provided with the ring flange, the ring flange passes through fixing bolt and wall section of thick bamboo fixed connection, the inside packing of a shutoff awl section of thick bamboo has the waterproof anticorrosive concrete of micro-expansion, and is provided with the apron on this layer of concrete, the top of a shutoff awl section of thick bamboo is fixed in the coping.

As a preferred technical scheme of the utility model, bed course and waterproof layer have been pour on the upper portion of foundation ditch bottom surface, one deck putty layer has been pour on the upper portion of waterproof layer, one deck bottom plate concrete has been pour on the top of putty layer, the inside of bottom plate concrete is provided with the steel band frame of T style of calligraphy, just the bottom of steel band frame is the stagnant water steel sheet, and the inboard and the shutoff awl section of thick bamboo contact fixation of stagnant water steel sheet.

As a preferred technical scheme of the utility model, a shutoff awl section of thick bamboo is big-end-up's trapezium structure, the top welding of a shutoff awl section of thick bamboo has last water ring, the bottom of going up water ring is provided with down the seal ring, and the width of two sets of seal rings is not less than 150mm, just go up water ring and seal ring down and all adopt 6 mm's steel sheet to make.

As an optimal technical scheme of the utility model, a shutoff awl section of thick bamboo adopts the steel sheet of 6mm thickness to enclose to close and forms, just the bottom outer wall of a shutoff awl section of thick bamboo is smeared and is had hemp silk and add the oleamen.

As an optimized technical scheme of the utility model, the coping is C30 concrete, it is less than coping bottom 100mm to go up the water ring.

As an optimal technical scheme of the utility model, the micro-expansion waterproof and anti-corrosion concrete filled in the plugging conical cylinder is modified C40P8 concrete with S95-grade mineral powder and a high-efficiency water reducing agent.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

in this device, adopt the shutoff to bore a section of thick bamboo to replace ordinary steel pipe commonly used through setting up precipitation well block structure, it is less to stay a mouthful in bottom plate surface behind the shutoff to carry out the shutoff through the coping, the condition of reducible seepage in later stage takes place, is convenient for carry out bottom plate surface decoration and follow-up construction, has simplified construction process, has shortened construction cycle greatly, just the utility model discloses the ring flange structure of department setting at a wall section of thick bamboo, fix the shutoff awl section of thick bamboo, supported the shutoff awl section of thick bamboo, avoided the in-process of pouring at the bottom plate because the different shutoff awl sections of thick bamboo that cause of concrete placement dynamics all around is crooked, simple structure, stability is high, easy and simple to handle.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the plugging cone, the wall cylinder and the flange of the present invention;

fig. 3 is a schematic cross-sectional view of fig. 2.

Wherein: 1. plugging the conical cylinder; 2. dewatering wells; 3. a wall cylinder; 4. the bottom surface of the foundation pit; 5. a cushion layer; 6. a waterproof layer; 7. a putty layer; 8. bottom plate concrete; 9. a steel band frame; 10. a water stopping ring; 11. pressing; 12. a lower water stop ring; 13. a flange plate; 14. a cover plate; 15. adding ointment into the shredded hemp.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-3, the utility model provides a deep basal pit high water pressure drop well block structure, including setting up precipitation well 2 in foundation ditch bottom surface 4, precipitation well 2's inside is provided with a wall section of thick bamboo 3, and the shutoff awl section of thick bamboo 1 that does not have the face from top to bottom is provided with in the wall section of thick bamboo 3, and the top outside of shutoff awl section of thick bamboo 1 is provided with ring flange 13, and ring flange 13 passes through fixing bolt and 3 fixed connection of wall section of thick bamboo, and the inside packing of shutoff awl section of thick bamboo 1 has the waterproof anticorrosive concrete of micro-expansion, and is provided with apron 14 on this layer of concrete, and the top of shutoff awl section of thick bamboo 1 is fixed in coping 11.

In other embodiments, the cushion layer 5 and the waterproof layer 6 are poured on the upper portion of the foundation pit bottom surface 4, the putty layer 7 is poured on the upper portion of the waterproof layer 6, the bottom plate concrete 8 is poured on the top end of the putty layer 7, the T-shaped steel belt frame 9 is arranged inside the bottom plate concrete 8, the bottom end of the steel belt frame 9 is a water stop steel plate, and the inner side of the water stop steel plate is fixedly contacted with the plugging cone barrel 1.

In other embodiments, the plugging cone cylinder 1 is a trapezoid structure with a small top and a large bottom, an upper water stop ring 10 is welded at the top end of the plugging cone cylinder 1, a lower water stop ring 12 is arranged at the bottom end of the upper water stop ring 10, the widths of the two groups of water stop rings are not less than 150mm, and the upper water stop ring 10 and the lower water stop ring 12 are both made of 6mm steel plates.

In other embodiments, the plugging cone barrel 1 is formed by enclosing a steel plate with the thickness of 6mm, hemp fiber and factice 15 is smeared on the outer wall of the bottom end of the plugging cone barrel 1, the connection between structures is enhanced through the hemp fiber and factice 15, and meanwhile, the waterproofness is improved; the coping 11 is C30 concrete, and the upper stop water ring 10 is 100mm lower than the bottom of the coping 11; the micro-expansion waterproof and anticorrosive concrete filled in the plugging conical cylinder 1 is modified C40P8 concrete with S95-grade mineral powder and a high-efficiency water reducing agent.

Adopt a shutoff awl section of thick bamboo 1 to replace ordinary steel pipe commonly used through setting up 2 block structure of precipitation well, leave a mouthful less at bottom plate surface after the shutoff to carry out the shutoff through coping 11, the condition of reducible seepage in later stage takes place, is convenient for carry out bottom plate surface decoration and follow-up construction, has simplified construction process, has shortened construction cycle greatly, just the utility model discloses at the ring flange 13 structure of 3 departments of a wall section of thick bamboo, fix a shutoff awl section of thick bamboo 1, supported a shutoff awl section of thick bamboo 1, avoided the in-process of pouring at the bottom plate because the different shutoff awl section of thick bamboo 1 that cause of concrete placement dynamics all around is crooked, simple structure, stability is high, easy and simple to handle.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a deep basal pit high water pressure drop well block structure, is including setting up precipitation well (2) in foundation ditch bottom surface (4), its characterized in that: the interior of precipitation well (2) is provided with a wall section of thick bamboo (3), be provided with up-down no face shutoff awl section of thick bamboo (1) in the wall section of thick bamboo (3), the top outside of shutoff awl section of thick bamboo (1) is provided with ring flange (13), ring flange (13) pass through fixing bolt and wall section of thick bamboo (3) fixed connection, the inside packing of shutoff awl section of thick bamboo (1) has micro-expansion waterproof anticorrosive concrete, and is provided with apron (14) on this layer of concrete, the top of shutoff awl section of thick bamboo (1) is fixed in coping (11).

2. The deep foundation pit high water pressure drop well block structure of claim 1, characterized in that: bed course (5) and waterproof layer (6) have been pour on the upper portion of foundation ditch bottom surface (4), one deck putty layer (7) have been pour on the upper portion of waterproof layer (6), one deck bottom plate concrete (8) have been pour on the top of putty layer (7), the inside of bottom plate concrete (8) is provided with steel band frame (9) of T style of calligraphy, just the bottom of steel band frame (9) is the stagnant water steel sheet, and the inboard and the shutoff of stagnant water steel sheet awl section of thick bamboo (1) contact fixation.

3. The deep foundation pit high water pressure drop well block structure of claim 1, characterized in that: the plugging cone cylinder (1) is of a trapezoidal structure with a small top and a large bottom, the top end of the plugging cone cylinder (1) is welded with an upper water stop ring (10), the bottom end of the upper water stop ring (10) is provided with a lower water stop ring (12), the width of the two sets of water stop rings is not less than 150mm, and the upper water stop ring (10) and the lower water stop ring (12) are made of steel plates with the thickness of 6 mm.

4. The deep foundation pit high water pressure drop well block structure of claim 1, characterized in that: the plugging conical cylinder (1) is formed by enclosing a steel plate with the thickness of 6mm, and hemp fiber and factice is smeared on the outer wall of the bottom end of the plugging conical cylinder (1).

5. The deep foundation pit high water pressure drop well block structure of claim 3, characterized in that: the coping (11) is C30 concrete, and the upper water stop ring (10) is 100mm lower than the bottom of the coping (11).