CN210712890U

CN210712890U - Precipitation structure of sump

Info

Publication number: CN210712890U
Application number: CN201921356897.6U
Authority: CN
Inventors: 雷利; 张军; 高涛; 于克民; 张书义; 曹洋洋; 张茂春; 刘相涛; 李志辉; 阮国玉
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-09
Anticipated expiration: 2029-08-20

Abstract

The utility model relates to a precipitation structure of sump pit, include: excavating a precipitation well formed at the bottom of the sump; the water permeable pipe is arranged in the precipitation well, a drainage space is formed inside the water permeable pipe, and the top of the water permeable pipe is provided with a top opening; the water pump is arranged in the drainage space and is connected with a drainage pipe; a water permeable pipe is inserted into the top opening of the water permeable pipe and is covered with a sealing sleeve of a water pump, a hard pipe protruding out of the bottom of the water collecting pit is formed at the top of the sealing sleeve, part of the hard pipe is embedded in a foundation cushion layer at the bottom of the water collecting pit, and a drain pipe penetrates through the hard pipe; and the sealing cap is matched with the end part of the hard pipe, and the hard pipe is sealed by the sealing cap after the water pump finishes dewatering. The utility model discloses before the bottom plate of foundation ditch is pour, sustainably utilize the water pump to carry out precipitation to prevent that the waterproof layer from being destroyed, ensure no seepage, guaranteed the construction quality of engineering.

Description

Precipitation structure of sump

Technical Field

The utility model relates to a foundation ditch construction engineering field refers in particular to a precipitation structure of sump pit.

Background

When the basement bottom plate is constructed, the foundation pit needs to be subjected to precipitation treatment in advance, according to the standard requirement, the precipitation elevation of underground water needs to be lower than the foundation pit by 0.5m, and the elevation of the bottom of the water collection pit often is lower than the foundation bottom plate by more than 1m, so that the underground water often seeps upwards during waterproof construction of the bottom of the water collection pit, and the waterproof coiled material base layer cannot be constructed; in addition, after the waterproof roll is constructed, the construction period of binding the waterproof protective layer and the bottom plate steel bars and pouring concrete is long, and during the construction period, underground water returns upwards, so that the quality problems of bulging and damage of the waterproof roll, cracking of the waterproof protective layer and the like are easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a precipitation structure of sump pit, return to the sump pit bottom on solving current groundwater and cause waterproofing membrane easily to bulge quality problems such as damaged, the water proof layer fracture.

The technical scheme for realizing the purpose is as follows:

the utility model provides a precipitation structure of sump pit, the bottom of foundation ditch is located to the sump pit, precipitation structure includes:

excavating a precipitation well formed at the bottom of the sump;

the water permeable pipe is arranged in the precipitation well, a drainage space is formed inside the water permeable pipe, and the top of the water permeable pipe is provided with a top opening;

the water pump is arranged in the drainage space and is connected with a drainage pipe;

the water permeable pipe is inserted into the top opening of the water permeable pipe and covers a sealing sleeve of the water pump, a hard pipe protruding out of the bottom of the water collecting pit is formed at the top of the sealing sleeve, the hard pipe is partially embedded in a foundation cushion layer at the bottom of the water collecting pit, and the drain pipe penetrates through the hard pipe; and

and the sealing cap is matched with the end part of the hard pipe, and the hard pipe is sealed and covered by the sealing cap after the water pump finishes dewatering.

The utility model discloses set up precipitation structure in the bottom of sump pit, continuously carry out precipitation through the water pump, when laying the waterproof layer, inevitably the offal infiltrates to effectively guarantee the smooth construction of waterproof layer. Before the bottom plate of foundation ditch is pour, can utilize the water pump to carry out precipitation sustainably to prevent that the waterproof layer from being destroyed, ensure that the basement does not have the seepage. When the bottom plate is poured, the part of the drain pipe exposed out of the hard pipe is cut off, the hard pipe is sealed through the sealing cap, the operation is simple and convenient, the phenomena of bulging and damage of the coiled material, cracking of the waterproof protective layer and leakage are avoided, and the construction quality of the engineering is ensured.

The utility model discloses the further improvement of precipitation structure of sump pit lies in, the end of hard pipe is equipped with the external screw thread, the sealing cap is equipped with the matched with internal thread, the sealing cap spiral shell connect in hard pipe.

The utility model discloses the further improvement of precipitation structure of sump pit lies in, the waterproof layer has been laid on the basic bed course, the waterproof layer in hard pipe department turns over and wraps up hard pipe extremely the tip department of hard pipe.

The utility model discloses the precipitation structure of sump pit's further improvement lies in seal the cap closing cap during the hard pipe, the tip of seal the cap with waterproof sealing layer has been paintd between the hard pipe.

The precipitation structure of the water collecting pit of the utility model is further improved in that the sealing external member also comprises a sleeve which is connected with the hard pipe into a whole;

the bottom of the sleeve is provided with a bottom opening, and the sleeve cover is arranged on the outer side of the water pump through the bottom opening;

the top of the sleeve is provided with a top plate, the top plate is fixedly connected with the hard pipe, and the top plate is provided with a communicating port corresponding to the hard pipe for the drain pipe to pass through.

The utility model discloses the further improvement of the precipitation structure of sump pit lies in, sheathed tube roof is buried underground and is located the basic bedding of sump pit bottom.

The utility model discloses the further improvement of precipitation structure of sump pit lies in, the size adaptation of the pipe of permeating water in the size of precipitation well.

The utility model discloses the further improvement of the precipitation structure of sump pit lies in, the drain pipe is the PVC pipe.

Drawings

Fig. 1 is a cross-sectional view of the precipitation structure of the sump of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1, the utility model provides a precipitation structure of sump pit for last precipitation to the foundation ditch, with effectively prevent that groundwater from oozing outward in the sump pit work progress, waterproof layer from bulging, waterproof layer fracture scheduling problem. The utility model discloses a follow-up foundation ditch bottom plate of water pump that adopts in the precipitation structure of sump pit does not take out when pouring, so this water pump can carry out the precipitation operation to the soil body of foundation ditch before the foundation ditch bottom plate is pour continuously to prevent that groundwater from infiltrating to the sump pit in, play better guard action to the waterproof layer in the sump pit, still protected the waterproof layer, avoid the waterproof layer fracture. When the foundation pit bottom plate is cast, the water pump is stopped to reduce water, the exposed part of the drain pipe is cut off, and the exposed end part of the hard pipe is sealed by the sealing cap, so that the sealing of the precipitation well is realized, and the operation is simple and convenient. Because the foundation pit bottom plate is pour immediately after the precipitation well is sealed, the construction cycle is short, the phenomenon that the water is returned upwards is avoided, the waterproof layer is prevented from bulging and being damaged, the waterproof protective layer is prevented from cracking and leaking, and the construction quality of the project is ensured. The following description is made of the precipitation structure of the sump according to the present invention with reference to the accompanying drawings.

Referring to fig. 1, a cross-sectional view of the precipitation structure of the sump of the present invention is shown. Referring to fig. 2, a schematic diagram of a partial enlarged structure at a in fig. 1 is shown. The structure of the water falling from the sump of the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the utility model discloses a bottom of foundation ditch 11 is located to sump pit 12 in the precipitation structure of sump pit, and sump pit bottom elevation H3 of sump pit 12 is less than the soleplate excavation elevation H3 of foundation ditch 11, and groundwater level elevation H2 in soil body 10 needs to be controlled below soleplate excavation elevation H3, and in this embodiment, sump pit bottom elevation H3 still is less than groundwater level elevation H2. The utility model discloses a precipitation structure of sump pit includes precipitation well 21, permeable pipe 22, water pump 23, seals external member 24 and seals cap 25, and precipitation well 21 excavates and forms in the bottom of sump pit 12, preferably, excavates soil body 10 downwards from sump pit bottom elevation H3 of sump pit 12 and forms and lies in precipitation well 21 below sump pit bottom elevation H3; the water permeable pipe 23 is arranged in the precipitation well 21, a drainage space 221 is formed inside the water permeable pipe 23, and the top of the water permeable pipe 23 is provided with a top opening 222; the water pump 23 is arranged in the drainage space 221 from the top opening 222, the water pump 23 is connected with a drainage pipe 231, and the underground water collected in the drainage pipe 22 is drained through the water pump 23 and the drainage pipe 231 to realize the precipitation of the foundation pit; the sealing sleeve member 24 is inserted into the permeable pipe 22 from the top opening 222 of the permeable pipe 22 and covers the water pump 23, the top of the sealing sleeve member 24 is formed with a hard pipe 241 protruding out of the bottom of the sump 12, the hard pipe 241 is partially embedded in the foundation mat 111 at the bottom of the sump 12, and the drain pipe 231 passes through the hard pipe 241. The sealing cap 25 is matched with the end part of the hard pipe 241, and after the water pump 23 finishes dewatering, the hard pipe 241 is sealed through the sealing cap 25.

The water permeable pipe 22 serves as a filter layer of the dewatering well 21, and filters the groundwater entering the drainage space 221 to prevent soil and stones from entering the drainage space 221 and blocking the drainage of the water pump 23. Preferably, the water permeable pipe 22 is a steel pipe, a plurality of water permeable holes are formed on the surface of the steel pipe, and a filter screen is covered on the inner surface of the steel pipe, so that the groundwater entering the inside of the water permeable pipe 22 is subjected to sand filtration through the water permeable holes and the filter screen.

In a specific embodiment, the size of the permeable pipe 22 is matched with that of the precipitation well 21, when the permeable pipe 22 is inserted into the precipitation well 21, the pipe wall of the permeable pipe 22 is attached to the well wall of the precipitation well 21, the permeable pipe 22 further plays a role in reinforcing the precipitation well 21, and a space is provided for the arrangement of the water pump 23.

In one embodiment, as shown in fig. 2, the end of the hard tube 241 is provided with an external thread, the closing cap 25 is provided with a matching internal thread, and the closing cap 25 is screwed to the external thread of the hard tube 241 through the internal thread, so as to realize the closing of the hard tube 241 through the threaded connection.

In one embodiment, a waterproof layer 112 is laid on the foundation mat layer 111, and the waterproof layer 112 is turned up at the hard tube 241 and wraps the hard tube 241 to the end of the hard tube 241. When the end of the hard pipe 241 is partially provided with an external thread, the waterproof layer 112 is wrapped at the bottom of the external thread.

In one embodiment, when the hard tube 241 is covered by the closing cap 25, a waterproof sealing layer 26 is coated between the end of the closing cap 25 and the hard tube 241. Preferably, after the sealing cap 25 is screwed on the hard tube 241, the end of the sealing cap 25 is connected to the upturned end of the waterproof layer 112, and a waterproof sealant is applied between the sealing cap 25, the upturned end of the waterproof layer 112 and the hard tube 241 to form the waterproof sealing layer 26.

In one embodiment, closure kit 24 further includes a sleeve 242 integrally connected to rigid tube 241; the bottom of the sleeve 242 is provided with a bottom opening 2421, and the sleeve 242 is covered on the outer side of the water pump 23 through the bottom opening 2421; the top of the casing 242 is provided with a top plate 2422, the top plate 2422 is fixedly connected with the hard tube 241, and the top plate 2422 is provided with a communication port corresponding to the hard tube 241 for the drainage tube 231 to pass through.

When the sleeve 242 is inserted into the permeable tube 22, the top plate 2422 of the sleeve 242 covers the top opening 222 of the permeable tube 22. Preferably, the top plate 2422 of the sleeve 242 is embedded in the foundation mat 111 at the bottom of the sump 12. When the foundation mat 111 is poured, the plug plates are inserted into the gaps between the top plates 2422 and the pipe walls of the water permeable pipes 22, the plug plates are used as pouring templates of the foundation mat 111, and after the foundation mat 111 is formed by pouring, the top plates 2422 are anchored in the foundation mat 111.

The sleeve 242 covers the outside of the water pump 23, and the bottom opening 2421 of the sleeve 242 is arranged at the bottom of the water pump 23, and the sleeve 242 protects the water pump 23.

In one embodiment, the drain pipe 231 is a PVC pipe. When precipitation is completed, the part of the PVC pipe exposed out of the hard pipe 241 is cut off, and then the sealing cap 25 is covered on the hard pipe 241, so that the plugging of the precipitation well 21 is completed. Preferably, the casing 242 and the hard tube 241 of the closed kit 24 of the present invention are made of galvanized steel.

The following explains the utility model discloses a precipitation structure's of sump pit work progress.

The construction method comprises the steps of firstly constructing a foundation pit 11, excavating the foundation pit 11 to a designed elevation, then arranging a water collecting pit 12 at the bottom of the foundation pit 11, excavating the water collecting pit 12 according to the position of the arranged water collecting pit 12, excavating a precipitation well 21 at the bottom of the water collecting pit 12 after excavating the water collecting pit 12, preferably, the precipitation well 21 is a cylindrical well, placing a permeable pipe 22 in the precipitation well 21 after excavating the precipitation well 21, then placing a water pump 23 in the permeable pipe 22, externally connecting a drain pipe 231 to the water pump 23, then clamping a sealing sleeve 24 into the permeable pipe 22, covering the water pump 23 by using the sealing sleeve 24, penetrating the drain pipe 231 out of a hard pipe 241 when the clamping sleeve sealing sleeve 24 is used for sealing the foundation mat 111, and then draining water in the permeable pipe 22 by using the water pump 23 when the foundation mat 111 is constructed for precipitation. After the foundation mat 111 is constructed, the foundation mat 111 anchors the top plate 2422 of the sleeve 242 of the sealing kit 24 and the part of the hard pipe 241, the foundation mat 111 is poured and formed on the bottom of the pit 12 and the bottom of the pit 11, then the waterproof layer 112 is laid on the foundation mat 111, the waterproof layer 112 is turned over in the hard pipe 241 in the pit 12 to wrap the hard pipe 241 and wrap the hard pipe 241 to the position where the hard pipe 241 is provided with the external thread, then the waterproof layer 113 is poured on the waterproof layer 112, and the waterproof layer 112 is protected by the waterproof layer 113. And then constructing the steel bars of the bottom plate of the foundation pit, continuously lowering the soil body 10 of the foundation pit 11 by the water pump 23 in the whole process to effectively lower the water, closing the water pump 23 when pouring the bottom plate of the foundation pit, cutting off the part of the drain pipe 231 exposed out of the hard pipe 241, plugging the end part of the hard pipe 241 by using the sealing cap 25, smearing waterproof sealing paste between the end part of the sealing cap 25 and the hard pipe 241 to form a waterproof sealing layer 26, and then pouring the bottom plate of the foundation pit. The utility model discloses can effectively put into the drainage when the sump pit is under construction, last precipitation before bottom plate concrete placement, it is airtight to adopt the seal sleeve, and is easy and simple to handle, has avoided the waterproof layer to bulge damaged and waterproof layer fracture, seepage phenomenon, has guaranteed the construction quality of engineering.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims

1. The utility model provides a precipitation structure of sump pit, the bottom of foundation ditch is located to the sump pit, its characterized in that, precipitation structure includes:

excavating a precipitation well formed at the bottom of the sump;

2. The sump precipitation structure of claim 1, wherein said rigid pipe has an external thread at its end and said closure cap has a mating internal thread, said closure cap being threadably connected to said rigid pipe.

3. The precipitation structure of a sump according to claim 1, wherein a waterproof layer is laid on the foundation pad layer, and the waterproof layer is turned up at the hard pipe and wraps the hard pipe to the end of the hard pipe.

4. The dewatering structure for a sump of claim 1, wherein a waterproof seal is applied between the end of the closure cap and the rigid pipe when the closure cap is covering the rigid pipe.

5. The sump precipitation structure of claim 1, wherein said closure assembly further comprises a sleeve integral with said rigid pipe;

6. The dewatering structure for a sump of claim 5, wherein the roof of the casing is embedded in a foundation pad at the bottom of the sump.

7. The precipitation structure of a sump according to claim 1, wherein the size of said water permeable pipe is adapted to the size of said precipitation well.

8. The sump dewatering structure of claim 1, wherein the drain pipe is a PVC pipe.