Top beam water blocking device for row pile support and water blocking method of top beam water blocking device

By setting up a U-shaped drainage ditch and a collection well at the top of the capping beam, combined with a downpipe and a water pump system, the problem of rainwater eroding the soil between the piles at the top of the capping beam was solved, thus improving the stability of the pile arrangement and construction efficiency.

CN121024084APending Publication Date: 2025-11-28CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
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Patent Information

Application Number
CN202511457029.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

In deep foundation pit construction, rainwater flows along the piles at the top of the capping beam, causing soil loss between the piles. Traditional water-blocking methods are ineffective and pose safety hazards.

Method used

Design a cap beam water blocking device, including a U-shaped drainage ditch, a connecting plate, a water collection well and a downpipe, to guide and collect water from the top of the cap beam and use a water pump to discharge the water from the foundation pit.

Benefits of technology

It effectively prevents rainwater from eroding the soil between piles, ensures the stability of the pile arrangement, improves construction efficiency, avoids waterlogging of the foundation pit bottom slab, and reduces safety hazards.

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Abstract

The invention discloses a top beam water blocking device for row pile support and a water blocking method thereof, and the water blocking device comprises a U-shaped drainage ditch which is arranged along the length direction of a top beam and is overhung on one side, relatively close to a foundation pit, of the top beam; the connecting plate is arranged in the length direction of the top beam, one end of the connecting plate is connected to the top end, relatively close to one side flange plate of the top beam, of the U-shaped drainage ditch, the other end of the connecting plate is in lap joint with the top of the top beam, and the connecting plate is used for guiding water at the top of the top beam to the U-shaped drainage ditch; the water-collecting well is formed in the bottom of the foundation pit; one end of the downpipe is communicated with the U-shaped drainage ditch, the other end of the downpipe extends to the water collecting well, the downpipe is used for guiding water in the U-shaped drainage ditch to the water collecting well, and soil loss between piles is avoided by arranging the water blocking device.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and in particular to a crown beam water blocking device for pile row support and a water blocking method thereof. BACKGROUND

[0002] In the process of deep foundation pit construction, a concrete crown beam is generally designed on the top of the pile row, and a steel mesh is arranged in the middle of the pile row and sprayed with concrete to prevent soil loss between piles, but when the rainfall is large in the rainy season, rainwater on the top of the crown beam will flow along the crown beam and the pile row to the foundation pit, and long-term rainwater erosion will cause soil loss between piles, and in severe cases, it will cause the pile body to tilt. The traditional method is to set up sandbags around the foundation pit to block water, but this method has poor water blocking effect, and there is a safety hazard of sandbags falling into the foundation pit. SUMMARY

[0003] The present application aims to overcome the defects of the prior art and provide a crown beam water blocking device for pile row support and a water blocking method thereof, which can prevent rainwater on the top of the crown beam from flowing along the pile row and prevent soil loss between piles.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is a crown beam water blocking device for pile row support, comprising:

[0005] A U-shaped drainage ditch is arranged along the length direction of the crown beam and overhangs on the side of the crown beam close to the foundation pit;

[0006] A connecting plate is arranged along the length direction of the crown beam and connected to the top end of the side flange plate of the U-shaped drainage ditch close to the crown beam at one end, and overlapped on the top of the crown beam at the other end, for guiding water on the top of the crown beam to the U-shaped drainage ditch;

[0007] A water collecting well is opened at the bottom of the foundation pit;

[0008] A downpipe is in communication with the U-shaped drainage ditch at one end and extends to the water collecting well at the other end, for guiding water in the U-shaped drainage ditch to the water collecting well.

[0009] The crown beam water blocking device for pile row support is further improved in that the U-shaped drainage ditch is arranged obliquely along the length direction from one end to the other end, and the downpipe is connected to the bottom of the lower end of the U-shaped drainage ditch.

[0010] The crown beam water blocking device for pile row support is further improved in that the top surface of the crown beam is sloped from the outside of the foundation pit to the inside of the foundation pit along the width direction.

[0011] The crown beam water blocking device for pile row support is further improved in that the number of downpipes is multiple, and the multiple downpipes are arranged at intervals along the length direction of the U-shaped drainage ditch.

[0012] A further improvement of the present invention for the cap beam water-blocking device for pile support is that the connecting plate is connected to the top surface of the cap beam by anchor bolts.

[0013] A further improvement of the crown beam water-blocking device for pile support of the present invention is that the downpipe is connected to the pile via fasteners.

[0014] A method for water-blocking cap beams used in pile support, characterized by comprising the following steps:

[0015] Step 1: Install the above-mentioned cap beam water-blocking device for pile support onto the pile support;

[0016] Step 2: When precipitation occurs, the water at the top of the crown beam is guided and collected by the crown beam water-blocking device;

[0017] Step 3: Use a water pump to drain the water from the collection well into the foundation pit.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] By guiding the flow of water at the top of the cap beam, water is prevented from falling down the piles, thus preventing soil loss between the piles. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Fig. 1 This is a cross-sectional view of the cap beam water-blocking device for pile support according to the present invention.

[0022] Fig. 2 This is a front view of the cap beam water-blocking device for pile support according to the present invention.

[0023] Fig. 3 This is a detailed structural diagram of the U-shaped drainage ditch of the cap beam water-blocking device for pile support according to the present invention.

[0024] Fig. 4 This is a front view of the cap beam water-blocking device for pile support according to the present invention.

[0025] In the diagram: 1. Crown beam; 2. Piles; 3. U-shaped drainage ditch; 4. Connecting plate; 5. Downpipe; 6. Sump; 7. Foundation pit; 8. Anchor nail; 9. Fastener. Detailed Implementation

[0026] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] The following detailed description of the water-blocking device for cap beam support and its water-blocking method for pile foundations, in conjunction with the accompanying drawings and specific embodiments, provides further details of the present invention.

[0028] Please see Figs. 1-4 As shown, the capping beam water-blocking device for pile support includes:

[0029] U-shaped drainage ditch 3 is set along the length of capping beam 1 and cantilevered on the side of capping beam 1 that is relatively close to the foundation pit 7;

[0030] The connecting plate 4 is set along the length of the crown beam 1, and one end is connected to the top of the flange plate of the U-shaped drainage ditch 3 that is relatively close to the crown beam 1, and the other end overlaps the top of the crown beam 1, for diverting the water at the top of the crown beam 1 to the U-shaped drainage ditch 3.

[0031] Water collection well 6 is located at the bottom of foundation pit 7;

[0032] The downpipe 5 is connected at one end to the U-shaped drainage ditch 3 and at the other end to the collection well 6, and is used to divert the water in the U-shaped drainage ditch 3 to the collection well 6.

[0033] By implementing the above settings, the flow path of rainwater entering the foundation pit 7 from the top of the capping beam 1 is changed, preventing it from scouring the soil between the piles and ensuring the stability of the pile 2.

[0034] By setting up the water collection well 6, it is convenient to collect and treat the water entering the foundation pit 7 from the top of the capping beam 1, which improves construction efficiency and also prevents the bottom slab of the foundation pit 7 from being soaked in water.

[0035] Specifically, a steel bracket connects the bottom of the U-shaped drainage ditch 3 to the crown beam 1.

[0036] By installing this steel bracket, the cantilever stability of the U-shaped drainage ditch 3 is ensured.

[0037] Preferably, the U-shaped drainage ditch 3 is inclined from one end to the other along its length, and the downpipe 5 is connected to the bottom of the end of the U-shaped drainage ditch 3 with the lower elevation.

[0038] Specifically, the top surface of the crown beam 1 slopes down from one end to the other along its length.

[0039] By sloping the crown beam 1 along its length, the U-shaped drainage ditch 3 is ensured to form a certain inclination angle together with the crown beam 1, which ensures that the rainwater collected in the U-shaped drainage ditch 3 can flow from one end of the U-shaped drainage ditch 3 to the other end and be discharged through the downpipe 5, thus preventing rainwater from accumulating in a certain place in the U-shaped drainage ditch 3.

[0040] Preferably, the top surface of the cap beam 1 slopes from the outside of the pit 7 to the inside of the pit 7 along the width direction.

[0041] By sloping the cap beam 1 along its width, rainwater falling on the top of the cap beam 1 can automatically flow towards the inside of the pit 7 and then be collected into the U-shaped drainage ditch 3.

[0042] Preferably, there are multiple downpipes 5, and the multiple downpipes 5 are spaced apart along the length of the U-shaped drainage ditch 3.

[0043] By installing multiple bolted pipes, it is easy to quickly drain the water in the U-shaped drainage ditch 3, thus preventing the water from overflowing in the U-shaped drainage ditch 3.

[0044] Preferably, the connecting plate 4 is connected to the top surface of the crown beam 1 by anchor bolts 8.

[0045] The connecting plate 4 is fixed to the top surface of the crown beam 1 by anchor nails 8, which ensures the connection stability of the U-shaped drainage ditch 3.

[0046] Preferably, the downpipe 5 is connected to the pile 2 by a fastener 9.

[0047] The connection stability of the downpipe 5 is ensured by setting the fastener 9.

[0048] A method for water-blocking cap beams used in pile support includes the following steps:

[0049] Step 1: Install the above-mentioned cap beam water-blocking device for pile support onto the pile support;

[0050] Step 2: When precipitation occurs, the water at the top of the crown beam 1 is guided and collected through the crown beam water-blocking device;

[0051] Step 3: Use a water pump to drain the water from the collection well 6 into the foundation pit 7.

[0052] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water-blocking device for a cap beam used in pile support, characterized in that, include: A U-shaped drainage ditch is installed along the length of the capping beam and cantilevered on the side of the capping beam that is relatively close to the foundation pit; A connecting plate is provided along the length of the crown beam, with one end connected to the top of the flange plate of the U-shaped drainage ditch that is relatively close to the crown beam, and the other end overlapping the top of the crown beam, for guiding water from the top of the crown beam to the U-shaped drainage ditch. A water collection well is constructed at the bottom of the foundation pit; The downpipe has one end connected to the U-shaped drainage ditch and the other end extended to the collection well, used to divert water from the U-shaped drainage ditch to the collection well.

2. The cap beam water-blocking device for pile support as described in claim 1, characterized in that, The U-shaped drainage ditch is inclined from one end to the other along its length, and the downpipe is connected to the bottom of the end of the U-shaped drainage ditch with the lower elevation.

3. The cap beam water-blocking device for pile support as described in claim 1, characterized in that, The top surface of the cap beam slopes from the outside of the pit to the inside of the pit along the width direction.

4. The cap beam water-blocking device for pile support as described in claim 1, characterized in that, The number of downpipes is multiple, and the multiple downpipes are spaced apart along the length of the U-shaped drainage ditch.

5. The cap beam water-blocking device for pile support as described in claim 1, characterized in that, The connecting plate is connected to the top surface of the crown beam by anchor bolts.

6. The cap beam water-blocking device for pile support as described in claim 1, characterized in that, The downpipe is connected to the pile foundation via fasteners.

7. A method for water-blocking cap beams used in pile foundation support, characterized in that, Including the following steps: Step 1: Install the cap beam water-blocking device for pile support as described in any one of claims 1 to 6 onto the pile support; Step 2: When precipitation occurs, the water at the top of the crown beam is guided and collected by the crown beam water-blocking device; Step 3: Use a water pump to drain the water from the collection well into the foundation pit.

Citation Information

Patent Citations

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  • Accelerated drainage device for retaining wall of foundation pit

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  • Double-row pile retaining wall structure with soil retaining and drainage functions

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