CN208201900U - A kind of precipitation mechanism and raft plate water cut off device device - Google Patents

Abstract

The utility model provides a dewatering mechanism and a water sealing device of a raft, belonging to the technical field of construction engineering. It includes a dewatering well, a dewatering filter pipe, a pump, a waterproof membrane and a waterproof protective concrete layer; the dewatering well is set in the building foundation pit, the waterproof membrane is laid on the dewatering well, and the waterproof protective concrete layer is laid on the waterproof membrane; The precipitation filter pipe is installed in the precipitation well, and one end of the water pump is connected with the precipitation filter pipe. The raft water sealing device has a simple structure and is convenient to use.

Description

A dewatering mechanism and a water sealing device for a raft

technical field

The utility model relates to the technical field of construction engineering, in particular to a dewatering mechanism and a raft water sealing device.

Background technique

With the rise of urban high-rise buildings and the development of underground railways, a large number of deep foundation pit projects have been produced. If the groundwater level in the construction area is high, the excavation of the foundation pit will involve the influence of groundwater on the construction of the foundation pit. For the normal operation, it is necessary to take measures to lower the groundwater level.

According to the needs of actual engineering construction and the increasing shortage of construction land, the area selected for construction land is gradually close to the areas along the river, the coast and tidal flats. Such areas are mostly fluid soil layers such as upper sand and lower rocks or tidal mud. When carrying out deep foundation pit construction in such areas, it is first necessary to excavate the foundation pit. During the excavation of the foundation pit, it is necessary to take measures such as precipitation to drain the water in the foundation soil, which can promote the consolidation of the soil and improve the quality of the foundation. At the same time, it can reduce the lateral displacement and settlement of the slope, stabilize the slope, eliminate quicksand, reduce the uplift of the base soil, provide relatively dry construction conditions, shorten the construction period, improve project quality and ensure construction safety.

Dewatering measures are taken during the excavation of the foundation pit to achieve the effect of drainage and consolidation of the liquid soil layer. Therefore, it is necessary to sink the downpipe at the well point to drain the soil and intercept the groundwater. In the prior art, the sinking of the downwater pipe at the well point is divided into two processes: punching and laying the pipe. When punching, the flushing pipe is first placed at the well point, and then the high-pressure water pump is started to loosen the soil. When punching, the pipe is flushed. Insert it vertically into the soil, then turn it up and down, left and right, and sink while punching, so as to gradually form holes in the soil. After the well hole is formed, pull out the flushing pipe immediately, insert the well point downwater pipe, and fill the sand filter layer between the well point pipe and the hole wall in time to prevent the hole wall from collapsing. However, under the conditions of fluid soil layers such as upper sand and lower rock or tidal mud, the well hole wall will quickly shrink and return to its original shape after the well hole is formed, resulting in the failure of the well point downpipe to settle.

Utility model content

The utility model provides a dewatering mechanism and a raft water sealing device, aiming at solving the above-mentioned problems existing in the dewatering mechanism in the prior art.

The utility model embodiment is realized like this:

A dewatering mechanism, the dewatering mechanism includes a dewatering well, a dewatering filter pipe, a water pump, a waterproof coiled material, and a waterproof protective concrete layer;

The dewatering well is set in the building foundation pit, the waterproof coiled material is laid on the dewatering well, and the waterproof protective concrete layer is laid on the waterproof coiled material;

The downwater filter pipe is installed in the downwater well, and one end of the water pump is connected with the downwater filter pipe.

As a preferred technical solution of the present utility model, a water-sealing iron cover is installed near the middle of the water pump of the downwater filter pipe.

As a preferred technical solution of the present utility model, a pipe-receiving snap ring is installed at the end of the downwater filter pipe close to the water pump.

As a preferred technical solution of the utility model, a closing valve is installed near the opening of the water pump in the downwater filter pipe.

As a preferred technical solution of the present utility model, the inside of the downwater filter pipe is equipped with multi-layer filter screens with different apertures, and the aperture diameters of the multi-layer filter screens decrease sequentially from the bottom end to the top end of the downwater filter pipe.

As a preferred technical solution of the utility model, the dewatering mechanism includes a water pump house and a water outlet main pipe, one end of the water outlet main pipe is connected to the water pump, and the other end is connected to the water pump house.

As a preferred technical solution of the present utility model, the water outlet main pipe includes a valve, a connecting pipe, a water collector and a water outlet pipe, one end of the water outlet pipe is connected to the water pump room, and the other end is connected to the water collector and distributor. One end of the connecting pipe is connected with the water collector and the other end is connected with the water pump, and the valve is installed on the connecting pipe.

As a preferred technical solution of the present utility model, a filter outer cladding is installed outside the precipitation filter pipe, and the filter outer cladding includes a first layer, a second layer and a third layer that are sequentially wrapped from the inside to the outside. The material used for the first layer includes nylon, the material used for the second layer includes linen, and the material used for the third layer includes non-woven fiber cloth.

As a preferred technical solution of the present utility model, the dewatering shaft has opposite first inner wall and second inner wall, the first filter layer is installed on the first inner wall, and the second filter layer is installed on the second inner wall. The first filter layer is arranged along the length extension direction of the first inner wall, and the second filter layer is arranged along the length extension direction of the second inner wall.

A raft seal water opening device, the raft water seal device includes the above-mentioned dewatering mechanism.

The beneficial effects of the utility model are:

The utility model provides a dewatering mechanism, which comprises a dewatering well, a dewatering filter pipe, a pump, a waterproof coiled material and a waterproof concrete layer; The concrete layer is laid on the waterproof membrane; the dewatering filter pipe is installed in the dewatering well, and one end of the pump is connected to the dewatering filter pipe; therefore, when waterproofing construction, the pump can be turned on to pump water into the dewatering well. In turn, the groundwater level can be lowered, thereby ensuring the smooth construction of the building foundation pit. At the same time, since the water outlet main pipe includes valves, connecting pipes, water collectors and distributors, and outlet pipes, one end of the outlet pipe is connected to the water pump house, the other end is connected to the water collector, and one end of the connecting pipe is connected to the water collector. It is connected with the suction pump, and the valve is installed on the connecting pipe; therefore, when the dewatering well is pumped, the water can be sucked into the connecting pipe by the pump, and then transported from the connecting pipe to the water collector, through The transmission of the water collector is sent to the water outlet pipe and the water pump room for centralized treatment and recycling. In addition, since the precipitation filter pipe is equipped with a filter outer cladding, the filter outer cladding includes the first layer, the second layer, and the third layer that are wrapped sequentially from the inside to the outside. The material used in the first layer includes nylon, and the second layer uses nylon. The material includes linen, and the material used in the third layer includes non-woven fiber cloth; therefore, on the one hand, the filter outer cladding can prevent the water outside the precipitation well from penetrating into the precipitation well, and on the other hand, it can prevent the water from entering the precipitation well. The water in the well is filtered, thereby reducing the impurities in the water in the dewatering well, thereby reducing the occurrence of blockage inside it. Secondly, since the inside of the precipitation filter pipe is equipped with multi-layer filter screens with different apertures, the apertures of the multi-layer filter screens are successively reduced from the bottom to the top of the precipitation filter tube; , Layer-by-layer filtration can be carried out through multi-layer filter nets, thereby reducing the situation that the pump is blocked by pollutants, thus playing a certain role in protecting the equipment. It can be seen that the dewatering mechanism is not only simple in structure and convenient in operation, but also has high dewatering efficiency, is not prone to equipment blockage, and is more smooth to use.

The utility model obtains the raft water sealing device through the above-mentioned design, and the raft water sealing device has the characteristics of simple structure and convenient use due to the above-mentioned dewatering mechanism.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is a schematic structural view of the precipitation mechanism provided by the embodiment of the present invention;

Fig. 2 is a schematic diagram of the structure of the first angle of the precipitation mechanism provided by the embodiment of the utility model;

Fig. 3 is a schematic diagram of the structure of the second angle of the precipitation mechanism provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a third angle of the dewatering mechanism provided by the embodiment of the present invention.

Icons: 1-precipitation mechanism; 2-precipitation well; 3-precipitation filter pipe; 4-pump; 5-waterproof membrane; 6-waterproof concrete layer; 7-water sealing iron cover; 9-closed valve; 10-filter screen; 11-water pump room; 12-outlet main pipe; 13-valve; 14-connecting pipe; 16-water collector; 17-outlet pipe;

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments described above are some of the embodiments of the present utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

In the description of the utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the It should not be construed as limiting the invention that the elements must have a certain orientation, be constructed and operate in a certain orientation.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise specified and limited, the first feature above or below the second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact. Rather, through additional characteristic contact between them. Moreover, the first feature on, above and above the second feature includes the first feature directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature being below, below and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Example:

This embodiment provides a raft water sealing device, which includes a dewatering mechanism 1 .

Please refer to Figures 1 to 4, the dewatering mechanism 1 includes a dewatering well 2, a dewatering filter pipe 3, a pump 4, a waterproof membrane 5 and a waterproof protective concrete layer 6; the dewatering well 2 is arranged in a building foundation pit, and the waterproof membrane 5 It is laid on the dewatering well 2, and the waterproof protective concrete layer 6 is laid on the waterproof coiled material 5;

Further, in this embodiment, the water-sealing iron cover 7 is installed near the middle of the water pump 4 on the downwater filter pipe 3, and the water-sealing iron cover 7 is mainly used to prevent the water-sealing iron cover 7 from falling between the downwater filter pipe 3 and the waterproof protective concrete layer 6. Occurrence of a situation in which water seepage occurs in contact with strata.

Further, in this embodiment, the end of the downwater filter pipe 3 close to the suction pump 4 is equipped with a pipe collection snap ring 8, which is mainly used to seal the end of the downwater filter pipe 3 tightly. Further, the filtering effect of the precipitation filter pipe 3 is better.

Further, in this embodiment, a closed valve 9 is installed near the opening of the downwater filter pipe 3 near the water pump 4, and the closed valve 9 is mainly used to seal the opening of the downwater filter pipe 3 so that the downwater filter pipe 3 has a better filtering effect.

Further, in the present embodiment, the inside of the downwater filter pipe 3 is equipped with multi-layer filter screens 10 with different apertures, and the aperture of the multi-layer filter screen 10 decreases successively from the bottom end of the downwater filter tube 3 to the top; therefore, by pumping When the water pump 4 sucks the water in the dewatering well 2, it can be filtered layer by layer through the multi-layer filter screen 10, thereby reducing the situation that the water pump 4 is blocked by pollutants, thereby protecting the equipment to a certain extent.

Further, in this embodiment, the dewatering mechanism 1 includes a water pump house 11 and a water outlet main pipe 12 , one end of the water outlet main pipe 12 is connected to the water pump 4 , and the other end is connected to the water pump house 11 .

Further, in this embodiment, the water outlet main pipe 12 includes a valve 13, a connecting pipe 14, a water collector 16 and a water outlet pipe 17, one end of the water outlet pipe 17 is connected to the water pump room 11, and the other end is connected to the water collector 16 , one end of the connecting pipe 14 is connected with the water collector 16, and the other end is connected with the water pump 4, and the valve 13 is installed on the connecting pipe 14.

Therefore, when the dewatering well 2 is pumped, the water can be sucked into the connecting pipe 14 by the suction pump 4, and then transported from the connecting pipe 14 to the water collector 16, and the water collected by the water collector 16 Delivered to the water outlet pipe 17 and the water pump room 11 for centralized treatment and recycling.

Further, in this embodiment, a filter outer cladding 18 is installed outside the precipitation filter pipe 3, and the filter outer cladding 18 includes a first layer, a second layer, and a third layer that are sequentially wrapped from the inside to the outside, and the first layer adopts The material includes nylon, the material used in the second layer includes linen, and the material used in the third layer includes non-woven fiber cloth. In other embodiments, the filtering outer cladding layer 18 can also use other materials for filtering.

Therefore, on the one hand, the filtering outer cladding 18 can prevent the water outside the dewatering well 2 from penetrating into the dewatering well 2 so easily, on the other hand, it can also filter the water entering the dewatering well 2, thereby making the dewatering well 2 2. The impurity of the water in 2 is reduced, thereby reducing the situation of its internal clogging.

Further, in this embodiment, the dewatering shaft 2 has opposite first inner wall and second inner wall, the first filter layer is installed on the first inner wall, the second filter layer is installed on the second inner wall, the first filter layer is along the The length extension direction of the first inner wall is arranged, and the second filter layer is arranged along the length extension direction of the second inner wall.

In summary, the dewatering mechanism 1 provided by the above design includes a dewatering well 2, a dewatering filter pipe 3, a pump 4, a waterproof coiled material 5, and a waterproof protective concrete layer 6; the dewatering well 2 is arranged in a building foundation pit, The waterproof coiled material 5 is laid on the dewatering well 2, and the waterproof protective concrete layer 6 is laid on the waterproof coiled material 5; the dewatering filter pipe 3 is installed in the dewatering well 2, and one end of the water pump 4 is connected with the dewatering filter pipe 3; therefore, when During waterproofing construction, just can open this suction pump 4, carry out pumping operation to this dewatering shaft 2, and then can reduce groundwater level, thereby guarantees that building foundation pit can be constructed smoothly. Simultaneously, because outlet main pipe 12 comprises valve 13, connecting pipe 14, water collector 16 and outlet pipe 17, one end of outlet pipe 17 is connected with water pump house 11, and the other end is connected with water collector 16, and one end of connecting pipe 14 It is connected to the water collector 16, the other end is connected to the pump 4, and the valve 13 is installed on the connecting pipe 14; therefore, when the dewatering well 2 is pumped, the water can be sucked to the connecting pipe 14 by the pump 4 , and then transported from the connecting pipe 14 to the water collector 16, and then transported through the water collector 16 to the water outlet pipe 17 and the water pump room 11 for centralized treatment and recycling. In addition, because the filter outer cladding 18 is installed outside the precipitation filter pipe 3, the filter outer cladding 18 includes the first layer, the second layer and the third layer that are wrapped up successively from the inside to the outside. The material used in the first layer includes nylon, and the second layer The material used in the first layer includes linen, and the material used in the third layer includes non-woven fiber cloth; On the one hand, it is also possible to filter the water entering the dewatering well 2, thereby reducing the impurities in the water in the dewatering well 2, thereby reducing the occurrence of blockage inside it. Secondly, since the filter screen 10 with multi-layer apertures different in the precipitation filter pipe 3 is installed, the aperture of the multi-layer filter screen 10 decreases successively from the bottom end to the top of the precipitation filter tube 3; The water in the well 2 can be filtered layer by layer through the multi-layer filter screen 10, thereby reducing the situation that the water pump 4 is blocked by pollutants, thereby protecting the equipment to a certain extent. It can be seen that the dewatering mechanism 1 not only has a simple structure and is convenient to operate, but also has high dewatering efficiency, does not easily cause equipment blockage, and is more smooth to use. Since the raft water sealing device has the above-mentioned dewatering mechanism 1, it has the characteristics of simple structure and convenient use.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a kind of precipitation mechanism, which is characterized in that the precipitation mechanism includes precipitation hoistway, precipitation screen pipe, suction pump, waterproof Coiled material and waterproofing protection concrete layer；

The precipitation hoistway is arranged in building foundation pit, and the waterproof roll is laid on the precipitation hoistway, and the waterproof is protected Shield concrete layer is laid on the waterproof roll；

The precipitation screen pipe is mounted in the precipitation hoistway, and one end of the suction pump is connect with the precipitation screen pipe.

2. precipitation mechanism according to claim 1, which is characterized in that the precipitation screen pipe is in the suction pump Water shutoff iron covering is installed at portion.

3. precipitation mechanism according to claim 2, which is characterized in that the precipitation screen pipe is close to the end of the suction pump Closed tube snap ring is installed at portion.

4. precipitation mechanism according to claim 3, which is characterized in that precipitation screen pipe the opening close to the suction pump Closing valve is installed at mouthful.

5. precipitation mechanism according to claim 1, which is characterized in that be equipped with multilayer aperture inside the precipitation screen pipe The aperture of different filter screens, filter screen described in multilayer is sequentially reduced from the bottom end of the precipitation screen pipe to top.

6. precipitation mechanism according to claim 1, which is characterized in that the precipitation mechanism includes that pump house and water outlet are total Pipe, one end of the outfall sewer are connect with the suction pump, and the other end is connect with the pump house.

7. precipitation mechanism according to claim 6, which is characterized in that the outfall sewer includes valve, connecting tube, collection point Hydrophone and outlet pipe, one end of the outlet pipe are connect with the pump house, and the other end is connect with the condensate correcting-distribuing device, described One end of connecting tube is connect with the condensate correcting-distribuing device, and the other end is connect with the suction pump, and the valve is mounted on the connection Guan Shang.

8. precipitation mechanism according to claim 1, which is characterized in that be equipped with filtering outsourcing outside the precipitation screen pipe Layer, the filtering surrounding layer includes the first layer, the second layer and third layer successively wrapped up from inside to outside, the first layer The material of use includes nylon, and the material that the second layer uses includes burlap, and the material that the third layer uses includes nonwoven Fiber cloth.

9. precipitation mechanism according to claim 1, which is characterized in that the dewatering well road have opposite the first inner wall and Second inner wall is equipped with the first filter layer on first inner wall, is equipped with the second filter layer on second inner wall, and described One filter layer is arranged along the length extending direction of first inner wall, and second filter layer prolongs along the length of second inner wall Stretch direction setting.

10. a kind of raft plate water cut off device device, which is characterized in that the raft plate water cut off device device includes any one of claim 1-9 The precipitation mechanism.