CN211446982U

CN211446982U - Convenient and fast open drainage precipitation device

Info

Publication number: CN211446982U
Application number: CN201921649896.0U
Authority: CN
Inventors: 刘少杰; 石飞燕; 张爱玲; 左东鹏; 陈冠宁
Original assignee: China Shanxi Sijian Group Co Ltd
Current assignee: China Shanxi Sijian Group Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-09-08
Anticipated expiration: 2029-09-30

Abstract

The utility model provides a convenient clear drainage precipitation device, belong to building drainage technical field, can solve higher at the water level, construction period is under the nervous condition, the problem of precipitation difficulty, including the bellows, suction pump and shut-in well sleeve pipe, the bellows is located below the elevation line of foundation ditch, the suction pump is located the bellows, be equipped with the metalling that plays closely knit effect between bellows and the foundation ditch, shut-in well sleeve pipe is located the top of bellows, the one end of bellows stretches into in the shut-in well sleeve pipe, shut-in well sheathed tube lateral wall is equipped with the stagnant water ring, the quantity of stagnant water ring is two-layer, set gradually from last to down along the sheathed tube lateral wall of shutting-in well, wherein, the stagnant water ring of bottom and the top parallel and level of bellows, the sheathed. The utility model discloses both solved the underground water level and be higher than the construction difficult problem of working face, cut the seepage way that has prevented groundwater simultaneously.

Description

Convenient and fast open drainage precipitation device

Technical Field

The utility model belongs to the technical field of the building drainage, concretely relates to open row of portable precipitation device.

Background

During general underground construction, precipitation is performed firstly, and the conventional construction method is that pipe well precipitation and pipe well precipitation are arranged around a foundation pit, wherein the pipe well point comprises a water filtration well pipe, a water suction pipe, a water pumping machine and the like. The pipe well point equipment is simple, the water discharge is large, the precipitation is deep, the lighter well point has a larger precipitation effect, and the effect of a plurality of groups of light well points can be replaced.

In some construction sites, the absolute elevation of the underground water level is higher than the working surface of the underground water level, normal construction conditions are not provided, and the underground soil layer is cobble and is easy to collapse due to water flow scouring.

Disclosure of Invention

The utility model discloses to higher at the water level, under the nervous condition of construction period, the problem of precipitation difficulty provides a clear row of portable precipitation device.

The utility model adopts the following technical scheme:

the utility model provides a clear row of portable precipitation device, including the bellows, suction pump and well shut-in sleeve pipe, the bellows is located below the marking line of foundation ditch, the suction pump is located the bellows, be equipped with the metalling that plays closely knit effect between bellows and the foundation ditch, the well shut-in sleeve pipe is located the top of bellows, the one end of bellows stretches into in the well shut-in sleeve pipe, well shut-in sheathed tube lateral wall is equipped with the seal ring, the quantity of seal ring is two-layer, set gradually under to from last along the sheathed tube lateral wall of well shut-in, wherein, the seal ring of bottom and the top parallel and level of bellows, the sheathed tube outside of well shut-.

The corrugated pipe is located in the center of the foundation pit.

The inner diameter of the well-sealing sleeve is matched with the outer diameter of the corrugated pipe.

The utility model has the advantages as follows:

the utility model discloses an in placing the foundation ditch with the bellows, form an artifical precipitation well that reduces ground water level, implement precipitation operation, saved the huge input of stagnant water curtain, practiced thrift construction cost. Meanwhile, the infiltration of the underground water level can be prevented in the later period, and the later-period maintenance cost is effectively saved. And meanwhile, the construction progress is accelerated. The construction problem that the underground water level is higher than the working surface is solved, and meanwhile, the leakage way of the underground water is prevented by cutting.

Drawings

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

wherein: 1-a corrugated tube; 2-sealing the well casing; 3-water stop ring; 4-expansive concrete; 5-concrete cushion.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in the figure, a bright dewatering device that arranges of portable, including bellows 1, suction pump and well shut-in sleeve pipe 2, bellows 1 is located below the marking line of foundation ditch, the suction pump is located bellows 1, be equipped with the metalling that plays closely knit effect between bellows 1 and the foundation ditch, well shut-in sleeve pipe 2 is located the top of bellows 1, the one end of bellows 1 stretches into well shut-in sleeve pipe 2 in, well shut-in sleeve pipe 2's lateral wall is equipped with seal ring 3, the quantity of seal ring 3 is two-layer, set gradually from last to down along well shut-in sleeve pipe 2's lateral wall, wherein, the seal ring 3 of bottom and bellows 1's top parallel and level, well shut-in sleeve pipe 2's the outside is equipped.

The corrugated pipe 1 is positioned in the center of a foundation pit.

The inner diameter of the well sealing sleeve 2 is matched with the outer diameter of the corrugated pipe.

The utility model discloses a use method as follows:

(1) elevator foundation ditch excavates to the elevation of designing requirement, then digs the central point deeply, inserts central point with bellows 1, then puts into bellows 1 with the suction pump, and 1 peripheries of bellows are closely knit with the rubble packing to form the artifical precipitation pipe well that reduces ground water level, implement precipitation operation.

(2) When the water level is reduced to be below the working surface, a concrete cushion layer (C20 and P6 concrete) is poured.

(3) And after the concrete cushion is finally set, sleeving the well sealing sleeve 2 on the corrugated pipe 1. The well sealing casing 2 is a steel casing with the length of 3mm, a water stop ring 3 is welded outside, the width of the water stop ring 3 is 150mm, and the thickness of the water stop ring is 3 mm. The inside diameter of the well shut-in casing 2 should be the same as the outside diameter of the corrugated pipe 1. The water stop ring 3 is provided with two channels. And then the construction of the next working procedure such as waterproof coiled material is carried out.

(4) When the well is sealed, the water in the dewatering well is pumped by a water pump, the water pump is quickly lifted, the well is sealed by C35 and P6 micro-expansive concrete and is compacted by vibration, the well cover is sealed by a polyethylene polypropylene cloth waterproof material, and then the well cover and the elevator shaft foundation are poured together. Thereby thoroughly plugging the dewatering well. The method solves the construction problem that the underground water level is higher than the working surface, and simultaneously cuts off and prevents the leakage path of the underground water.

Claims

1. The utility model provides a precipitation device is arranged to portable openly which characterized in that: including bellows (1), suction pump and well sealing sleeve pipe (2), bellows (1) are located below the marking line of foundation ditch, the suction pump is located bellows (1), be equipped with the metalling that plays closely knit effect between bellows (1) and the foundation ditch, well sealing sleeve pipe (2) are located the top of bellows (1), the one end of bellows (1) stretches into in well sealing sleeve pipe (2), the lateral wall of well sealing sleeve pipe (2) is equipped with seal ring (3), the quantity of seal ring (3) is two-layer, set gradually from last to bottom along the lateral wall of well sealing sleeve pipe (2), wherein, the seal ring (3) of bottom and the top parallel and level of bellows (1), the outside of well sealing sleeve pipe (2) is equipped with the waterproof layer.

2. The portable light-row precipitation device as claimed in claim 1, wherein: the corrugated pipe (1) is located in the center of the foundation pit.

3. The portable light-row precipitation device as claimed in claim 1, wherein: the inner diameter of the well sealing sleeve (2) is matched with the outer diameter of the corrugated pipe.