Foundation pit support system

Abstract

The utility model discloses a kind of foundation pit support systems, comprising: two groups of support pile components, two groups of support pile components are spaced along first direction;Support beam, support beam is connected between two groups of support pile components;Two groups of vertical columns, two groups of vertical columns are respectively connected in the top of two groups of support pile components;Two groups of uplift pile components, two groups of uplift pile components are spaced along first direction, two groups of support pile components are located between two groups of uplift pile components;Pull rope component, pull rope component includes main rope and multiple halyards, the both ends of main rope are connected two groups of uplift pile components respectively, and main rope is supported by two groups of vertical columns, multiple halyards are spaced along first direction, the top of each halyard is connected with main rope, the bottom of each halyard is connected with support beam.The foundation pit support system proposed by the utility model can improve the problem that the number of setting support column in traditional mode is too much.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and in particular to a foundation pit support system. Background Technology

[0002] In deep foundation pit engineering, the foundation pit support system is crucial for ensuring construction safety and the stability of the surrounding environment. Common support methods include a combination of pile support and internal bracing systems. In this system, support piles are typically installed on both sides of the foundation pit, with capping beams placed atop the piles. To balance the horizontal thrust exerted on the support piles by the soil pressure on both sides after excavation, a support beam needs to be erected horizontally inside the foundation pit. The two ends of this support beam are supported by the capping beams of the support piles on both sides.

[0003] Traditional internal bracing systems have a significant problem: to ensure that the support beams have sufficient stiffness under their own weight and the loads that may be applied from above, and to effectively transfer the loads, a large number of vertical support columns are often required inside the foundation pit. These dense support columns occupy valuable space within the foundation pit, greatly hindering the efficiency of earthwork excavation, transportation, and subsequent main structure construction. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a foundation pit support system that can improve the problem of excessive number of support columns required in traditional methods.

[0005] A foundation pit support system according to some embodiments of the present invention includes: two sets of support pile assemblies, the two sets of support pile assemblies being spaced apart along a first direction; a support beam, the support beam being connected between the two sets of support pile assemblies; two sets of vertical columns, the two sets of vertical columns being respectively connected to the top of the two sets of support pile assemblies; two sets of anti-uplift pile assemblies, the two sets of anti-uplift pile assemblies being spaced apart along the first direction, the two sets of support pile assemblies being located between the two sets of anti-uplift pile assemblies; and a rope assembly, the rope assembly including a main rope and multiple slings, the two ends of the main rope being respectively connected to the two sets of anti-uplift pile assemblies, and the main rope being supported by the two sets of vertical columns, the multiple slings being spaced apart along the first direction, the top end of each sling being connected to the main rope, and the bottom end of each sling being connected to the support beam.

[0006] The foundation pit support system according to the embodiments of this utility model has at least the following beneficial effects:

[0007] In this foundation pit support system, a rope assembly is used to suspend the support beam, and the force direction is converted with the help of vertical columns. Furthermore, the rope assembly is held in place by anti-uplift piles, thus meeting the vertical force requirements of the support beam. This reduces or even eliminates the need for columns in traditional solutions, thereby increasing the excavation space within the foundation pit and mitigating the interference from columns.

[0008] According to some embodiments of the present invention, the bottom end of each sling extends from the top of the support beam through the support beam to the bottom of the support beam, and the bottom end of each sling is connected to a first telescopic support member, which is located below the support beam and supports the support beam.

[0009] According to some embodiments of the present invention, the support beam is provided with a plurality of through slots spaced apart along a first direction, and the plurality of slings pass through the plurality of through slots in a corresponding manner.

[0010] A first pad is provided between the top of the first telescopic support member and the bottom of the support beam.

[0011] According to some embodiments of the present invention, the length of the through groove along the first direction is greater than the diameter of the sling.

[0012] According to some embodiments of the present invention, each of the slings is connected to a first anchor at its bottom end, and the first telescopic support is connected between the first pad and the first anchor.

[0013] According to some embodiments of the present invention, each of the slings is connected to a cable clamp at its top end, and the cable clamp is held in place by the main rope.

[0014] According to some embodiments of this utility model, an arc-shaped support plate is provided on the vertical column, the protrusion of the arc-shaped support plate is arranged upward, and the main rope passes around the arc-shaped support plate.

[0015] According to some embodiments of the present invention, each set of anti-tension pile components includes an anti-tension pile cap, the end of the main rope passes through the anti-tension pile cap and is connected to a second telescopic support member, and the second telescopic support member abuts against the anti-tension pile cap.

[0016] According to some embodiments of the present invention, the anti-tension pile cap is provided with an inclined through hole, and the anti-tension pile cap also has a support wall located at the bottom end of the through hole, and a second pad is provided between the support wall and the second telescopic support member.

[0017] According to some embodiments of the present invention, the end of the main rope is connected to a second anchor, and the second telescopic support is disposed between the second anchor and the second pad.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a foundation pit support system according to an embodiment of the present invention;

[0021] Figure 2 This is a partial structural schematic diagram of a foundation pit support system according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram illustrating the relationship between the sling and the support beam in one embodiment of the present invention.

[0023] Figure 4 for Figure 3 A magnified view of a portion of the figure shown;

[0024] Figure 5 This is a partial sectional view of a foundation pit support system according to an embodiment of the present invention;

[0025] Figure 6 This is another partial cross-sectional view of a foundation pit support system according to an embodiment of the present invention;

[0026] Figure 7 This is a partial structural schematic diagram of a support beam according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the first pad in one embodiment of the present invention;

[0028] Figure 9 This is a structural schematic diagram of the first pad of one embodiment of the present invention from another perspective;

[0029] Figure 10 This is a schematic diagram illustrating the relationship between the sling and the main rope in one embodiment of the present invention.

[0030] Figure 11 for Figure 10 A cross-sectional view of the figure shown;

[0031] Figure 12 This is a schematic diagram illustrating the relationship between the main rope and the vertical column in one embodiment of the present invention.

[0032] Figure 13 This is a schematic diagram illustrating the cooperation relationship between the main rope and the anti-pull pile assembly in one embodiment of the present invention;

[0033] Figure 14 for Figure 13 The figure shown is a cross-sectional view.

[0034] Icon labels:

[0035] 10. Foundation pit;

[0036] 100. Support pile assembly; 110. Support pile; 120. Cap beam;

[0037] 200, Support beam; 210, Through groove; 220, Limiting groove; 230, First positioning groove;

[0038] 300. Vertical column; 310. Curved support plate;

[0039] 400. Tension-resistant pile assembly; 410. Tension-resistant pile; 420. Tension-resistant pile cap; 421. Through hole; 422. Support wall;

[0040] 500. Cable assembly; 510. Main rope; 520. Sling; 530. First telescopic support; 540. First pad; 541. Through hole; 542. Positioning protrusion; 543. Second positioning groove; 550. First anchor; 551. Third positioning groove; 560. Cable clamp; 561. Clamp; 562. Locking screw; 570. Second telescopic support; 580. Second pad; 590. Second anchor; 591. Axial force monitor;

[0041] 600. Reinforcing plate. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] like Figure 1 As shown, an embodiment of the present invention provides a foundation pit support system including a support pile assembly 100, a support beam 200, a vertical column 300, an anti-uplift pile assembly 400, and a rope assembly 500.

[0046] The number of support pile components 100 is two sets, and the two sets of support pile components 100 are arranged at intervals along the first direction.

[0047] Combination Figure 1 and Figure 2 Specifically, each set of support pile components 100 includes a plurality of support piles 110 arranged along the second direction, and the two sets of support pile components 100 are spaced apart along the first direction, wherein the first direction is perpendicular to the second direction, and both the first direction and the second direction are parallel to the horizontal plane.

[0048] It is understandable that the two sets of support pile components 100 are respectively set on two opposite sides of the foundation pit 10 along the first direction, and both sets of support pile components 100 are inserted into the soil below the foundation pit 10.

[0049] It should be noted that each set of support pile assembly 100 also includes a capping beam 120 connected to the top of the plurality of support piles 110. Specifically, the capping beam 120 extends along the second direction, and the bottom of the capping beam 120 is fixedly connected to the top of the plurality of support piles 110.

[0050] Combination Figure 1 and Figure 2 The support beam 200 connects the two sets of support pile components 100.

[0051] Specifically, the support beam 200 extends along the first direction, and both ends of the support beam 200 are fixedly connected to two sets of retaining pile assemblies 100, respectively. More specifically, both ends of the support beam 200 are fixedly connected to the capping beams 120 of the two sets of retaining pile assemblies 100, respectively.

[0052] Combination Figure 1 and Figure 2 There are two sets of vertical columns 300, and the two sets of vertical columns 300 are respectively connected to the top of the two sets of support pile components 100.

[0053] Specifically, the vertical column 300 extends vertically, and the two vertical columns 300 are respectively fixedly connected to the top of the cap beam 120 of the two sets of support pile assemblies 100.

[0054] It should be noted that reinforcing plates 600 can also be installed between the support beam 200 and the vertical column 300, and between the support beam 200 and the retaining pile 110, to improve the structural strength of the connection.

[0055] like Figure 1 As shown, there are two sets of tension pile components 400, which are spaced apart along the first direction, and two sets of support pile components 100 are located between the two sets of tension pile components 400.

[0056] Combination Figure 1 and Figure 13 It is understood that the tension pile assembly 400 includes a plurality of tension piles 410 arranged along the second direction, the two sets of tension pile assemblies 400 are spaced apart along the first direction, and the distance between the two sets of tension pile assemblies 400 along the first direction is greater than the distance between the two sets of support pile assemblies 100 along the first direction, and the two sets of support pile assemblies 100 are located between the two sets of tension pile assemblies 400.

[0057] It should be noted that the anti-uplift pile component 400 is used to be inserted into the soil near the foundation pit 10.

[0058] Furthermore, the tension pile assembly 400 also includes a tension pile cap 420 connected to the top of the plurality of tension piles 410. Specifically, the tension pile cap 420 extends along a second direction, and the bottom of the tension pile cap 420 is fixedly connected to the top of the plurality of tension piles 410.

[0059] like Figure 1As shown, the rope assembly 500 includes a main rope 510 and multiple slings 520. The two ends of the main rope 510 are respectively connected to two sets of anti-pull pile assemblies 400, and the main rope 510 is supported by two sets of vertical columns 300. The multiple slings 520 are spaced apart along the first direction. The top end of each sling 520 is connected to the main rope 510, and the bottom end of each sling 520 is connected to the support beam 200.

[0060] Understandably, the two ends of the main rope 510 are connected to two sets of anti-tension pile components 400, and the main rope 510 is supported by two vertical columns 300 near its two ends. The middle section of the main rope 510 is located above the support beam 200. Multiple slings 520 are spaced apart along the first direction, with the top of each sling 520 connected to the main rope 510 and the bottom of each sling 520 connected to the support beam 200.

[0061] In this foundation pit support system, the support beam 200 is suspended using a rope assembly 500, and the force direction is converted by a vertical column 300. Furthermore, the rope assembly 500 is held in place by an anti-uplift pile assembly 400, thus meeting the vertical force requirements of the support beam 200. This reduces or even eliminates the need for columns in traditional solutions to support the support beam 200, thereby increasing the excavation space within the foundation pit 10 and mitigating the interference from columns.

[0062] Combination Figure 10 and Figure 11 In some embodiments, each sling 520 is connected to a clamp 560 at its top end. The clamp 560 is used to hold the main rope 510, ensuring the reliability of the connection position between the sling 520 and the main rope 510 and reducing the risk of relative slippage between the top end of the sling 520 and the main rope 510.

[0063] Specifically, the cable clamp 560 includes a clamp 561 connected to the top of the sling 520, the clamp 561 clamps the main rope 510, and the clamp 561 can change the clamping force between itself and the main rope 510 by means of a locking screw 562.

[0064] Combination Figure 3 and Figure 4 In some embodiments, the bottom end of each sling 520 extends from the top of the support beam 200 through the support beam 200 to the bottom of the support beam 200, and the bottom end of each sling 520 is connected to a first telescopic support member 530, which is located below the support beam 200 and supports the support beam 200.

[0065] Understandably, the first telescopic support 530 is telescopic, functioning as a jack. When the first telescopic support 530 telescopically extends or retracts, it can adjust the stress of the sling 520, thereby adjusting the deflection of the support beam 200 and ensuring its reliability. A deflection detector can be installed on the support beam 200 to detect its deflection. The first telescopic support 530 can adjust the stress of the sling 520 based on the detector's readings, thus adjusting the deflection of the support beam 200.

[0066] Furthermore, the support beam 200 is provided with a plurality of through slots 210 spaced apart along the first direction, and a plurality of slings 520 pass through the plurality of through slots 210 in a corresponding manner. It can be understood that the bottom end of the sling 520 can extend from the top of the support beam 200 through the through slots 210 to the bottom of the support beam 200.

[0067] Furthermore, the length of the through groove 210 along the first direction is greater than the diameter of the sling 520. This allows the position of the sling 520 along the first direction to be adjusted, facilitating the installation and adjustment of the sling 520.

[0068] In some embodiments, a first pad 540 is provided between the top of the first telescopic support 530 and the bottom of the support beam 200.

[0069] Specifically, there are multiple first pads 540, each corresponding to a single first sling 520. The first pads 540 are spaced apart along a first direction and are located below multiple through slots 210. First telescopic supports 530 at the bottom ends of the multiple slings 520 abut against each of the multiple first pads 540. The first pads 540 can be made of steel and have high strength.

[0070] Combination Figure 5 , Figure 6 and Figure 7 Furthermore, the support beam 200 is also provided with a limiting groove 220 below each through groove 210. The first pad 540 is disposed in the limiting groove 220. The limiting groove 220 is used to limit the movement of the first pad 540 in the second direction. The first pad 540 is configured to move in the first direction within the limiting groove 220.

[0071] Combination Figure 5 and Figure 7Specifically, the first pad 540 has through holes 541 extending through its upper and lower sides. The sling 520 passes through the through slot 210 and then through the through holes 541 of the first pad 540. The first telescopic support 530 is connected to the bottom end of the sling 520 and abuts against the first pad 540. When the position of the sling 520 is adjusted along the first direction, the position of the first pad 540 along the first direction is also adjusted accordingly. In addition, the limiting groove 220 is used to limit the movement of the first pad 540 along the second direction, which can prevent the first pad 540 from having a positional deviation in the second direction.

[0072] Combination Figure 7 and Figure 8 Furthermore, the upper wall of the limiting groove 220 is provided with a plurality of first positioning grooves 230 spaced apart along the first direction, and the upper side wall of the first pad 540 is provided with a positioning protrusion 542. After the position of the first pad 540 along the first direction is adjusted, the positioning protrusion 542 can be inserted into the first positioning groove 230 to limit the position of the first pad 540 and prevent the position of the first pad 540 from moving in the future.

[0073] Combination Figure 5 and Figure 9 Furthermore, the lower side wall of the first pad 540 is also provided with a second positioning groove 543. The top of the first telescopic support 530 passes through the second positioning groove 543. The second positioning groove 543 can restrict the first telescopic support 530 from moving in the horizontal plane. In this way, if the pull rope assembly 500 is shaken by the wind, it can also ensure that the first telescopic support 530 and the first pad 540 do not slide relative to each other, which can prevent the first telescopic support 530 and the first pad 540 from separating, thus ensuring high reliability.

[0074] Combination Figure 5 and Figure 6 Furthermore, each sling 520 is connected to a first anchor 550 at its bottom end, and a first telescopic support 530 is connected between the first pad 540 and the first anchor 550.

[0075] Understandably, the first anchor 550 is used to support the bottom of the first telescopic support 530 and provide support for the first telescopic support 530.

[0076] Furthermore, the upper side wall of the first anchor 550 is provided with a third positioning groove 551, and the bottom of the first telescopic support 530 passes through the third positioning groove 551. In this way, if the rope assembly 500 is shaken by the wind, it can be ensured that the first telescopic support 530 and the first anchor 550 do not slide relative to each other.

[0077] like Figure 12As shown, in some embodiments, an arc-shaped support plate 310 is provided on the vertical column 300, with the protrusion of the arc-shaped support plate 310 facing upwards, and the main rope 510 passes around the arc-shaped support plate 310.

[0078] It is understandable that the curved support plate 310 is convex upwards, and the main rope 510 can slide along the first direction on the curved support plate 310.

[0079] Combination Figure 13 and Figure 14 Furthermore, the end of the main rope 510 passes through the anti-tension pile cap 420 and is connected to the second telescopic support 570, which abuts against the anti-tension pile cap 420.

[0080] Specifically, both ends of the main rope 510 are connected to second telescopic support members 570, which abut against two anti-uplift pile caps 420 respectively. The second telescopic support members 570 are telescopic, functioning as jacks. When the second telescopic support members 570 telescopically extend or retract, they adjust the stress on the main rope 510, thereby adjusting the force on the support beam 200 and preventing structural failure due to stress loss in the main rope 510.

[0081] Furthermore, the anti-tension pile cap 420 is provided with an inclined through hole 421, and the anti-tension pile cap 420 also has a support wall 422 located at the bottom end of the through hole 421, and a second pad 580 is provided between the support wall 422 and the second telescopic support member 570.

[0082] Specifically, the through hole 421 is inclined, and the top of the through hole 421 is set towards the arc support plate 310. The bottom of the through hole 421 is opened on the support wall 422. The end of the main rope 510 passes through the through hole 421 and is connected to the second telescopic support member 570. The second telescopic support member 570 abuts against the second pad 580 set on the support wall 422.

[0083] Furthermore, the end of the main rope 510 is connected to a second anchor 590, and the second telescopic support 570 is disposed between the second anchor 590 and the second pad 580.

[0084] It should be noted that an axial force monitor 591 is also provided between the second telescopic support 570 and the second anchor 590 to detect the stress of the main rope 510.

[0085] Understandably, the axial force monitor 591 and the deflection detector can monitor the axial force of the main rope 510 and the deflection of the support beam 200 in real time, respectively, and transmit the monitoring data to the data acquisition unit. The data acquisition unit collects the monitoring data and transmits it to the cloud server. The cloud server analyzes the monitoring data and determines whether adjustments are needed. If adjustments are needed, it transmits the adjustment command to the corresponding control transmission box. The control transmission box is connected to the first telescopic support 530 and the second telescopic support 570. The first telescopic support 530 and the second telescopic support 570 adjust the prestress of the main rope 510 and the sling 520 to achieve real-time adjustment.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A foundation pit support system, characterized in that, include: Two sets of support pile assemblies are arranged at intervals along a first direction; A support beam, which connects the two sets of the support pile assemblies; Two sets of vertical columns, each set of vertical columns being connected to the top of one set of support pile assemblies; Two sets of tension pile assemblies are provided, the two sets of tension pile assemblies are arranged at intervals along the first direction, and the two sets of support pile assemblies are located between the two sets of tension pile assemblies. The pull rope assembly includes a main rope and multiple slings. The two ends of the main rope are respectively connected to two sets of anti-pull pile assemblies, and the main rope is supported by two sets of vertical columns. The multiple slings are spaced apart along the first direction. The top end of each sling is connected to the main rope, and the bottom end of each sling is connected to the support beam.

2. The foundation pit support system according to claim 1, characterized in that, The bottom end of each sling extends from the top of the support beam through the support beam to the bottom of the support beam, and the bottom end of each sling is connected to a first telescopic support member, which is located below the support beam and supports the support beam.

3. The foundation pit support system according to claim 2, characterized in that, The support beam is provided with a plurality of through slots spaced apart along a first direction, and the plurality of slings pass through the plurality of through slots in a corresponding manner. A first pad is provided between the top of the first telescopic support member and the bottom of the support beam.

4. The foundation pit support system according to claim 3, characterized in that, The length of the through groove along the first direction is greater than the diameter of the sling.

5. The foundation pit support system according to claim 3, characterized in that, Each of the slings is connected to a first anchor at its bottom end, and the first telescopic support is connected between the first pad and the first anchor.

6. The foundation pit support system according to claim 1, characterized in that, Each of the slings is connected to a clamp at its top, which clamps the main rope.

7. The foundation pit support system according to claim 1, characterized in that, An arc-shaped support plate is provided on the vertical column, with the protrusion of the arc-shaped support plate facing upwards, and the main rope passes around the arc-shaped support plate.

8. The foundation pit support system according to claim 1, characterized in that, Each set of the anti-tension pile assembly includes an anti-tension pile cap, the end of the main rope passes through the anti-tension pile cap and is connected to a second telescopic support member, the second telescopic support member abutting against the anti-tension pile cap.

9. The foundation pit support system according to claim 8, characterized in that, The anti-tension pile cap is provided with an inclined through hole, and the anti-tension pile cap also has a support wall located at the bottom end of the through hole, and a second pad is provided between the support wall and the second telescopic support member.

10. The foundation pit support system according to claim 9, characterized in that, The end of the main rope is connected to a second anchor, and the second telescopic support is disposed between the second anchor and the second pad.

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