Concentrated dewatering structure for drainage pipe of foundation pit foundation trench

Abstract

The utility model discloses a foundation pit foundation trench drainage pipe concentrated precipitation structure which comprises a soil layer, a precipitation assembly is arranged at the top of the soil layer and comprises a groove formed in the outer wall of the top of the soil layer, a pile cap is arranged in the groove, a pebble bed is laid on the outer wall of the top of the groove, a gravel layer is laid on the top of the pebble bed, and a drainage pipe is arranged in the gravel layer. The top of the gravel layer is covered with waterproof cloth, the top of the soil layer is provided with a drainage pipe body, the drainage pipe body is located at the bottom of the pebble layer and communicates with the groove, the top of the waterproof cloth is covered with a concrete cushion layer, a dewatering well is arranged in the soil layer, and the other end of the drainage pipe body penetrates through the dewatering well and extends inwards. By arranging the dewatering assembly, accumulated water can be intensively guided to one position when the pile cap is constructed, so that no accumulated water on the pile cap can be ensured, a pumping and draining process is avoided, and the construction quality is favorably ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, concretely is a kind of foundation pit foundation trench drainage pipe centralized precipitation structure. BACKGROUND

[0002] In the process of existing foundation pit pile cap excavation, in the process of pile cap construction, generally according to the regional setting of precipitation well according to geological conditions, temporary pumping well is set in the side of pile cap (or 100mm to 200mm small area is set in the inside of cushion layer than cushion layer bottom) during pile cap excavation, cushion construction, for the construction of pile cap cushion layer pouring, the construction of pile cap brick membrane masonry process groundwater pumping.

[0003] After the completion of pile cap construction, backfilling is needed, if pile cap brick membrane masonry mortar is not full, after the backfilling of pile cap side wall, the construction of pile cap inside waterproof, steel bar binding, concrete pouring construction process all need to pump groundwater, affect construction efficiency, cannot guarantee construction quality, especially when bottom plate concrete pouring, cannot guarantee that 50mm to 100mm high water of pile cap bottom reinforcement lower part is pumped out completely, affect bottom plate construction quality. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of foundation pit foundation trench drainage pipe centralized precipitation structure to solve the problems presented in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of foundation pit foundation trench drainage pipe centralized precipitation structure, including soil layer, the top of soil layer is provided with precipitation assembly, the precipitation assembly includes the groove of soil layer top outer wall, the inside of the groove is provided with pile cap, the top outer wall of the groove is paved with pebble layer, the top of pebble layer is paved with broken stone layer, the broken stone layer top is covered with waterproof cloth, the top of soil layer is provided with drainage pipe body, the drainage pipe body is at the bottom position of pebble layer, and drainage pipe body is communicated with the groove, the top of waterproof cloth is covered with concrete cushion layer.

[0006] As further preferred of the technical scheme, the inside of soil layer is provided with precipitation well, another end of drainage pipe body penetrates precipitation well and extends to the inside.

[0007] The water can be concentrated and guided to one place when the pile cap is constructed, the water in the pile cap can be ensured, the pumping and draining process can be avoided, the construction quality can be ensured, the groove is dug around the pile cap before the pile cap cushion layer is poured, the pebble layer, the gravel layer and the waterproof cloth are filled in the groove in sequence, the drainage pipe is arranged in the bottom soil, one end of the drainage pipe extends into the dewatering well, when the rain weather occurs, the water in the pile cap and the rainwater can be concentrated in the groove, then all the water in the groove flows to the dewatering well along the drainage pipe, the additional layer composed of the pebble layer, the gravel layer and the waterproof cloth can make the water in the pile cap before the concrete is poured, before the concrete is poured, the additional layer is compacted by using the tool, the drainage port is sealed, and then the concrete cushion layer is poured.

[0008] As a further preferred aspect of the present technical solution, the one end of the outer wall of the drainage pipe body is rotatably sleeved with a mounting ring through a bearing, the outer part of the mounting ring is coaxially fixed with a driven wheel, the inner wall of one side of the dewatering well is rotatably connected with a transmission wheel through a bearing, the driven wheel and the transmission wheel are sleeved with the same belt, the outer wall of one side of the mounting ring is fixedly connected with a cleaning strip, the cleaning strip extends into the inner part of the drainage pipe body and is in contact with the inner wall of the drainage pipe body, and the cleaning strip is spirally arranged.

[0009] As a further preferred aspect of the present technical solution, the transmission ratio of the driven wheel and the transmission wheel is less than one.

[0010] As a further preferred aspect of the present technical solution, the top wall of the flow guide frame is arranged in an inclined manner.

[0011] As a further preferred aspect of the present technical solution, the dewatering well is internally provided with a pressure relief pipe, and the pressure relief pipe is connected to the water ditch part outside the side wall of the foundation pit.

[0012] As a further preferred aspect of the present technical solution, the drainage pipe body is made of DNPVC pipe.

[0013] The utility model provides a kind of foundation pit foundation trench drainage pipe centralized dewatering structure, with the following beneficial effects:

[0014] The utility model discloses a pile bearing platform construction method, it is characterized by: the construction method comprises a pile bearing platform, a drainage assembly and a drainage pipe body, the drainage assembly is arranged on the pile bearing platform, the drainage pipe body is arranged in the bottom earthwork, the drainage pipe body one end extends into the drainage well, when encountering rain weather, the pile bearing platform water and rainwater can be concentrated in the groove, and then all flow to the drainage well along the drainage pipe, and the additional layer that is composed of pebble layer, broken stone layer and waterproof cloth makes that the pile bearing platform concrete can be poured before the water of the additional layer, and the concrete is poured before using the tool compaction additional layer and pours the concrete cushion layer after the drainage port is blocked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole first visual angle structural diagram of the utility model;

[0016] Figure 2 It is the whole second visual angle structural diagram of the utility model;

[0017] Figure 3 It is the whole second visual angle structural diagram of the utility model; Figure 1 It is the whole second visual angle structural diagram of the utility model;

[0018] Figure 4 It is the whole second visual angle structural diagram of the utility model; Figure 1 It is the whole second visual angle structural diagram of the utility model;

[0019] Figure 5 It is the whole second visual angle structural diagram of the utility model;

[0020] In the drawing: 1, soil layer;2, diversion frame;3, pile bearing platform;4, drainage assembly;401, groove;402, pebble layer;403, broken stone layer;404, waterproof cloth;405, concrete cushion layer;406, drainage pipe body;407, drainage well;408, mounting ring;409, cleaning strip;410, driven wheel;411, transmission wheel;412, belt. DETAILED DESCRIPTION

[0021] The technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment.

[0022] The utility model provides technical scheme: such as Figure 1 、 Figure 2 and Figure 4As shown, in this embodiment, a foundation trench drainage pipe concentrated precipitation structure includes a soil layer 1, the top of the soil layer 1 is provided with a precipitation assembly 4, the precipitation assembly 4 includes a groove 401 formed in the outer wall of the top of the soil layer 1, a pile cap 3 is arranged inside the groove 401, a pebble layer 402 is laid on the top of the outer wall of the groove 401, a gravel layer 403 is laid on the top of the pebble layer 402, a waterproof cloth 404 covers the top of the gravel layer 403, a drainage pipe body 406 is arranged on the top of the soil layer 1, the drainage pipe body 406 is located at the bottom of the pebble layer 402, and the drainage pipe body 406 is in communication with the groove 401, and a concrete cushion 405 covers the top of the waterproof cloth 404.

[0023] A precipitation well 407 is arranged inside the soil layer 1, the other end of the drainage pipe body 406 penetrates the precipitation well 407 and extends inside, the drainage pipe body 406 is arranged in an inclined shape as a whole, and the low position is inside the precipitation well 407.

[0024] Before pouring the cushion of the pile cap 3, a groove 401 is dug around the pile cap 3, the pebble layer 402, the gravel layer 403 and the waterproof cloth 404 are filled in the groove 401 in sequence, the drainage pipe body 406 is arranged in the bottom soil, and one end of the drainage pipe 406 extends into the precipitation well 407, when it rains, the water accumulated in the pile cap 3 and the rainwater will be concentrated in the groove 401, and then all flow into the precipitation well 407 along the drainage pipe body 406, the additional layer composed of the pebble layer 402, the gravel layer 403 and the waterproof cloth 404 allows the water accumulated before the concrete of the pile cap 3 is poured to pass through, before pouring the concrete cushion 405, the additional layer is compacted using a tool, the drainage port is sealed, and then the concrete cushion 405 is poured.

[0025] As shown in Figure 1 and Figure 3 As shown, one end of the circumference of the outer wall of the drainage pipe body 406 is rotatably sleeved with a mounting ring 408 through a bearing, a driven wheel 410 is fixedly arranged on the outside of the mounting ring 408, a transmission wheel 411 is rotatably connected to the inner wall of one side of the precipitation well 407 through a bearing, the driven wheel 410 and the transmission wheel 411 are sleeved with the same belt 412, a cleaning strip 409 is fixedly connected to the outer wall of one side of the mounting ring 408, the cleaning strip 409 extends into the inside of the drainage pipe body 406 and is in contact with the inner wall of the drainage pipe body 406, and the cleaning strip 409 is arranged in a spiral shape.

[0026] The transmission ratio of the driven wheel 410 and the transmission wheel 411 is less than one, and the transmission wheel 411 needs to rotate multiple turns to drive the driven wheel 410 to rotate one turn, so that the driving process is more labor-saving.

[0027] When the handle drives the transmission wheel 411 to rotate, the transmission wheel 411 can drive the driven wheel 410 to rotate slowly through the belt 412, the driven wheel 410 drives the cleaning strip 409 to rotate through the mounting ring 408, and the accumulated silt and impurities in the drainage pipe body 406 are pushed to move to the inside of the precipitation well 407 due to the spiral arrangement of the cleaning strip 409, and the flushing effect is better in cooperation with the water flow, so that the silt accumulation can be avoided to affect the drainage efficiency.

[0028] As shown in Figure 2 and Figure 5 , the inside of the groove 401 is slidably inserted with the flow guide frame 2, the top wall of the flow guide frame 2 is arranged in an inclined manner, and when water or rainwater falls on the top of the flow guide frame 2, it will flow into the port of the drainage pipe body 406 along the slope, and it can be taken out after use.

[0029] As shown in Figure 1 and Figure 2 , a pressure relief pipe is arranged in the precipitation well 407, the pressure relief pipe is connected to the water channel part outside the foundation pit side wall, and when the water pressure in the well is too large after the bottom plate is poured, the drainage pipe arranged outside the bottom plate cushion layer can be used to discharge and relieve pressure.

[0030] As shown in Figure 1 and Figure 2 , the drainage pipe body 406 is made of a DN50 PVC pipe.

[0031] The utility model provides a kind of foundation pit foundation groove drainage pipe centralized precipitation structure, specific working principle as follows:

[0032] When the device works, groove 401 is dug around pile cap 3 before pile cap 3 cushion layer is poured, and the groove 401 is filled with pebble layer 402, broken stone layer 403 and waterproof cloth 404 in sequence, drainage pipe body 406 is arranged in bottom soil, and one end of drainage pipe 406 extends into precipitation well 407, when it rains, water and rainwater in pile cap 3 are concentrated in groove 401, then flow into precipitation well 407 along drainage pipe body 406, and the additional layer composed of pebble layer 402, broken stone layer 403 and waterproof cloth 404 allows water to pass before pouring concrete of pile cap 3, and after using tool compaction additional layer to seal drainage port, concrete cushion layer 405 is poured, after using for a period of time, handle drives transmission wheel 411 to rotate, transmission wheel 411 can drive driven wheel 410 to rotate slowly through belt 412, driven wheel 410 drives cleaning strip 409 to rotate through mounting ring 408, and the accumulated silt and impurities in drainage pipe body 406 are pushed to move to the inside of precipitation well 407 due to the spiral arrangement of cleaning strip 409, and the flushing effect is better in cooperation with the water flow.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centralized dewatering structure for foundation pit trenches, comprising a soil layer (1), characterized in that: A dewatering assembly (4) is provided on the top of the soil layer (1). The dewatering assembly (4) includes a trench (401) opened on the outer wall of the top of the soil layer (1). A pile cap (3) is provided inside the trench (401). A pebble layer (402) is laid on the outer wall of the top of the trench (401). A crushed stone layer (403) is laid on top of the pebble layer (402). A waterproof cloth (404) is covered on top of the crushed stone layer (403). A drainage pipe (406) is provided on the top of the soil layer (1). The drainage pipe (406) is located at the bottom of the pebble layer (402) and is connected to the trench (401). A concrete cushion layer (405) is covered on top of the waterproof cloth (404).

2. The centralized dewatering structure for foundation pit trenches according to claim 1, characterized in that: A dewatering well (407) is provided inside the soil layer (1), and the other end of the drainage pipe (406) passes through the dewatering well (407) and extends inward.

3. The centralized dewatering structure for foundation pit trenches according to claim 2, characterized in that: One end of the outer circumference of the drainage pipe body (406) is fitted with an installation ring (408) through a bearing. A driven wheel (410) is coaxially fixed to the outside of the installation ring (408). A transmission wheel (411) is rotatably connected to one side of the inner wall of the dewatering well (407) through a bearing. The driven wheel (410) and the transmission wheel (411) are fitted with the same belt (412). A cleaning strip (409) is fixedly connected to one side of the outer wall of the installation ring (408). The cleaning strip (409) extends into the interior of the drainage pipe body (406) and contacts the inner wall of the drainage pipe body (406). The cleaning strip (409) is spirally arranged.

4. The centralized dewatering structure for foundation pit trenches according to claim 3, characterized in that: The transmission ratio between the driven wheel (410) and the transmission wheel (411) is less than one.

5. The centralized dewatering structure for foundation pit trenches according to claim 1, characterized in that: A flow guide frame (2) is slidably inserted inside the groove (401), and the top wall of the flow guide frame (2) is inclined.

6. The centralized dewatering structure for foundation pit trenches according to claim 2, characterized in that: The dewatering well (407) is equipped with a pressure relief pipe, which is connected to the water ditch on the outer side wall of the foundation pit.

7. The centralized dewatering structure for foundation pit trenches according to claim 1, characterized in that: The drainage tube body (406) is made of DN50 PVC pipe.

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