Novel well point dewatering pipe and vacuum well point dewatering system

Abstract

The utility model discloses a novel well point downcast pipe and vacuum well point downcast system.The novel well point downcast pipe comprises a water filtering main pipe, the top of the water filtering main pipe is sleeved with a steel wire hose, the bottom of the water filtering main pipe is sleeved with a plug, the lower half section of the water filtering main pipe is sleeved with a filter screen, and the gap between the filter screen and the water filtering main pipe is filled with a permeable filter body; the two ends of the filter screen and the two ends of the permeable filter body are limited through buckles and the plugs respectively, and the top of the main water filter pipe is in butt joint with a horizontal precipitation pipe network through a steel wire hose. According to the novel well point dewatering pipe, modular design is adopted, the structure is simple, efficient insertion and water filtering can be achieved, the vacuum well point dewatering system adopting the well point dewatering pipe can achieve independent dewatering of soil layers with different depths by arranging two sets of dewatering pipes with different depths, adjustment is flexible, the dewatering efficiency is high, and the construction efficiency can be improved to a certain degree.

Description

TECHNICAL FIELD

[0001] The utility model relates to well point dewatering technical field especially a novel well point dewatering pipe and vacuum well point dewatering system. BACKGROUND

[0002] Well point dewatering is a method of artificially lowering the groundwater level. Generally, this method is used in construction environments with relatively high groundwater levels, and is an important technical measure in earthwork engineering and foundation and base engineering construction, which can drain water in the foundation soil, promote soil consolidation, improve foundation strength, reduce soil lateral displacement and settlement of soil slopes, stabilize slopes, eliminate quicksand, reduce the uplift of foundation soil, and enable the construction of foundations and base engineering below the natural groundwater level to avoid the influence of groundwater, provide relatively dry construction conditions, reduce earthwork volume, shorten construction period, improve engineering quality and ensure construction safety. At present, the conventional well point dewatering pipe has the technical problem of easy clogging, and the pipe diameter of the general well point dewatering system is completely consistent, and cannot be flexibly adjusted according to the change of water level. SUMMARY

[0003] In view of the above technical problems, the utility model provides a novel well point dewatering pipe and vacuum well point dewatering system. The novel well point dewatering pipe adopts modular design, has simple structure, can realize efficient insertion and water filtration, and the vacuum well point dewatering system adopting the well point dewatering pipe can realize independent dewatering of different depth soil layers through the setting of two sets of dewatering pipes with different depths, is flexible to adjust, has high dewatering efficiency, and can improve construction efficiency to a certain extent.

[0004] A novel well point dewatering pipe, comprising a water filtration main pipe, a steel wire hose is sleeved at the top of the water filtration main pipe, and a plug is sleeved at the bottom of the water filtration main pipe, a filter screen is sleeved at the lower half of the water filtration main pipe, the gap between the filter screen and the water filtration main pipe is filled with a water-permeable filter body, the two ends of the filter screen and the water-permeable filter body are respectively limited by buckles and the plug, and the top of the water filtration main pipe is connected to a horizontal dewatering pipe network through the steel wire hose.

[0005] As a preferred technical solution of the above, the water-permeable filter body adopts a three-dimensional random wire water-permeable filter body.

[0006] As a preferred technical solution of the above, the filter screen adopts a mesh density of 100 meshes.

[0007] As a preferred technical solution of the above, the bottom of the plug is conical.

[0008] The utility model relates to a new type of vacuum well point precipitation system adopts the new type well point precipitation pipe of any one described above, well point precipitation pipe is equipped with two length sizes, is used for different depth soil layer precipitation respectively, including long well point precipitation pipe and short well point precipitation pipe, the filter screen of filter water section of short well point precipitation pipe and long well point precipitation pipe is set up and is overlapped partially up and down to the sleeve, long well point precipitation pipe and short well point precipitation pipe are connected a group of separate horizontal precipitation pipe network respectively, the water outlet of horizontal precipitation pipe network converges to water gas separation tank, is equipped with submersible pump in water gas separation tank and is extracted vacuum through external water circulation type vacuum pump.

[0009] As the preferred of above technical scheme, the long well point precipitation pipe is arranged in rectangular array.

[0010] As the preferred of above technical scheme, two groups of horizontal precipitation pipe network are arranged side by side.

[0011] As the preferred of above technical scheme, the horizontal precipitation pipe network is composed of closed pipe network of transverse horizontal precipitation pipe and longitudinal horizontal precipitation pipe, and the soil base between the two adjacent transverse horizontal precipitation pipes is a dynamic compaction area.

[0012] The utility model has the advantages of:

[0013] 1, this new well point precipitation pipe sets up filter screen and filter water filter body, can effectively reduce the risk of filter water main pipe blockage, and adopts modular design, can reduce the resistance of precipitation pipe insertion soil layer through the tapered plug of design, improves installation efficiency.

[0014] 2, this vacuum well point precipitation system can realize independent precipitation of different depth soil layer through setting two sets of different depth precipitation pipes, and is flexible to adjust, and the construction efficiency can be improved to a certain extent. DRAWINGS

[0015] Figure 1 It is the structural diagram of the well point precipitation pipe.

[0016] Figure 2 It is the plane layout of the vacuum well point precipitation system.

[0017] Figure 3 It is the side view of the vacuum well point precipitation system.

[0018] The signs are as follows: 1, filter water main pipe, 2-steel wire hose, 3-plug, 4-filter screen, 5-permeable filter body, 6-buckle, 7-horizontal precipitation pipe network, 701-transverse horizontal precipitation pipe, 702-longitudinal horizontal precipitation pipe, 8-long well point precipitation pipe, 9-short well point precipitation pipe, 10-water gas separation tank, 11-submersible pump, 12-water circulation type vacuum pump extraction. CONCRETE IMPLEMENTATION

[0019] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] As Figure 1 The utility model relates to a new well point dewatering pipe, including filter water main pipe 1, the top of filter water main pipe 1 is equipped with steel wire hose 2, and the bottom is equipped with plug 3, the lower half of filter water main pipe 1 is equipped with filter screen 4, the gap of filter screen 4 and filter water main pipe 1 is filled with water permeable filter body 5, and the both ends of filter screen 4 and water permeable filter body 5 are positioned through buckle 6 and plug 3 respectively, and the top of filter water main pipe 1 is connected to horizontal dewatering pipe network 7 through steel wire hose 2.

[0021] In the embodiment, the water permeable filter body 5 adopts three-dimensional random wire water permeable filter body.

[0022] In the embodiment, the filter screen 4 adopts 100 mesh eyelet density.

[0023] In the embodiment, the bottom of plug 3 is conical.

[0024] As Figure 2 , Figure 3 A new vacuum well point dewatering system, which adopts any one of the new well point dewatering pipes, is shown in the drawings, the well point dewatering pipe is provided with two length sizes and is used for dewatering soil layers with different depths, including long well point dewatering pipe 8 and short well point dewatering pipe 9, the filter water section of filter screen 4 is arranged on the long well point dewatering pipe 8 and the short well point dewatering pipe 9 in an upper and lower arrangement and partially overlaps, the long well point dewatering pipe 8 and the short well point dewatering pipe 9 are connected to a group of separate horizontal dewatering pipe networks respectively, the water outlet of the horizontal dewatering pipe network 7 is converged to a water-gas separation tank 10, a submersible pump 11 is arranged in the water-gas separation tank 10 and a water circulation type vacuum pump 12 is arranged outside to perform vacuum pumping.

[0025] In the embodiment, the long well point dewatering pipe 8 is arranged in a rectangular array. The short well point dewatering pipe 9 is arranged between two adjacent long well point dewatering pipes 8, and 1-2 short well point dewatering pipes 9 are arranged between every two long well point dewatering pipes 8.

[0026] In the embodiment, the two groups of horizontal dewatering pipe networks 7 are arranged side by side.

[0027] In the embodiment, the horizontal dewatering pipe network 7 is composed of a closed pipe network of transverse horizontal dewatering pipes 701 and longitudinal horizontal dewatering pipes 702, and the soil base between two adjacent transverse horizontal dewatering pipes 701 is a dynamic compaction area.

[0028] The construction steps of the vacuum well point dewatering system are as follows:

[0029] Site clearing and leveling → site trenching (about 0.5m deep) → trench bottom vertical dewatering pipe (diameter 25mm) and burying related monitoring equipment → trench bottom horizontal main pipe (diameter 50mm) and connecting pump → backfilling sand in the trench to the original ground → vacuum extraction, monitoring → meeting the requirements of the load to carry out the load construction → meet the requirements of the unloading to vacuum unloading → vacuum unloading after the rolling construction → rolling to reach the acceptance of the inspection after the intersection ground elevation.

[0030] The vacuum well point dewatering system can realize independent dewatering of different depth soil layers through setting two sets of dewatering pipes with different depths, is flexible in adjustment, is high in dewatering efficiency, and can improve the construction efficiency to a certain extent.

[0031] The above is only preferred embodiment of the utility model, and is not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel wellpoint dewatering pipe, characterized in that: The system includes a main water filtration pipe, with a steel wire hose fitted at the top and a plug fitted at the bottom. A filter screen is fitted on the lower half of the main water filtration pipe, and a permeable filter body fills the gap between the filter screen and the main water filtration pipe. The two ends of the filter screen and the permeable filter body are respectively limited by a buckle and the plug. The top of the main water filtration pipe is connected to the horizontal rainwater pipe network through the steel wire hose.

2. The novel wellpoint dewatering pipe according to claim 1, characterized in that: The water-permeable filter body adopts a three-dimensional random filament water-permeable filter body.

3. The novel wellpoint dewatering pipe according to claim 1, characterized in that: The filter screen has a pore density of 100 mesh.

4. The novel wellpoint dewatering pipe according to claim 1, characterized in that: The bottom of the plug is conical.

5. A novel vacuum wellpoint dewatering system, characterized in that: The novel wellpoint dewatering pipe described in any one of claims 1-4 is provided. The wellpoint dewatering pipe has two length sizes, which are used for dewatering soil layers at different depths. It includes a long wellpoint dewatering pipe and a short wellpoint dewatering pipe. The short wellpoint dewatering pipe and the long wellpoint dewatering pipe have filter sections with filter screens installed on them, which are arranged vertically and partially overlap. The long wellpoint dewatering pipe and the short wellpoint dewatering pipe are respectively connected to a separate horizontal dewatering pipe network. The outlet of the horizontal dewatering pipe network flows into a water-gas separator. The water-gas separator is equipped with a submersible pump and is evacuated by an external water-circulating vacuum pump.

6. A novel vacuum wellpoint dewatering system according to claim 5, characterized in that: The long wellpoint dewatering pipes are arranged in a rectangular array.

7. A novel vacuum wellpoint dewatering system according to claim 5, characterized in that: The two sets of horizontal rainwater pipe networks are set up side by side.

8. A novel vacuum wellpoint dewatering system according to claim 5, characterized in that: The horizontal rainwater pipe network is a closed network composed of transverse horizontal rainwater pipes and longitudinal horizontal rainwater pipes. The area between two adjacent transverse horizontal rainwater pipes is a soil foundation area that is subjected to dynamic compaction.

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