Anti-seepage foundation pit supporting structure

Abstract

The utility model discloses an anti-seepage foundation pit supporting structure which comprises a U-shaped steel sheet pile and a jacking assembly and is characterized in that J-shaped plates are fixedly connected to the two sides of the U-shaped steel sheet pile respectively, and clamping grooves are formed in the inner sides of the J-shaped plates; two sleeves are fixedly connected to the outer side of the U-shaped steel sheet pile; the jacking assembly is used for connecting the two U-shaped steel sheet piles and jacking the U-shaped steel sheet pile installed between the two U-shaped steel sheet piles, the jacking assembly comprises a transverse rod, a threaded hole is formed in the middle of the transverse rod, a screw is in threaded connection with the threaded hole, the two ends of the transverse rod are fixedly connected with inserting plates correspondingly, and the inserting plates are connected with the U-shaped steel sheet pile. Rubber strips are pasted and fixed to one sides of the ends of the J-shaped plates respectively, a cylinder is fixedly connected to the inner side of the U-shaped steel sheet pile, and the diameter of an inner hole of the cylinder is equal to the diameter of the ends of the screws. According to the utility model, mutual sealing is realized through jacking and pressing of the jacking and pressing assembly, an excellent sealing effect is provided after splicing, and water seepage is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to an anti-seepage foundation pit support structure. Background Art

[0002] Existing technologies often require support structures to ensure stability and prevent seepage around the pit. However, there are a variety of flexible support methods available, and the choice must be tailored to the specific situation. Common pit support methods include anchor support, inclined column support, continuous vertical support, steel sheet pile support, and cement soil wall support.

[0003] This application document mainly aims at improving the steel sheet pile support structure. In the existing technology, when steel sheet piles are erected, hydraulic devices are generally used to insert the steel sheet piles into the four sides of the foundation pit in sequence, and adjacent steel sheet piles are locked by special locks on the surface of the steel sheet piles. However, the advantage of this locking structure is that the structure is simple, but the sealing performance is relatively poor, and gaps are easily generated after engagement, resulting in poor anti-seepage effect.

[0004] The existing announcement number CN 221193371 U provides an anti-seepage foundation pit support structure, which realizes that after the steel sheet piles are connected, two snap connections and two seals can be formed; and the snap limit directions of the two connections are at a 90° angle, which not only improves the connection stability, but also can be limited no matter which direction the steel sheet piles are tilted; it also has an excellent sealing effect, and cross bars can be installed as needed to improve the stability between multiple steel sheet piles. The installation steps are extremely simple and the cross bars will not fall off. However, relying solely on two snap connections, there is no pressure between the contact surfaces of the snap connections, and gaps are likely to exist, resulting in poor sealing effect and poor anti-seepage effect.

[0005] Therefore, it is necessary to provide an anti-seepage foundation pit support structure to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-seepage foundation pit supporting structure.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An anti-seepage foundation pit support structure, comprising a U-shaped steel sheet pile and a top pressure assembly, characterized in that: both sides of the U-shaped steel sheet pile are fixedly connected to a J-shaped plate, and a clamping groove is provided on the inner side of the J-shaped plate;

[0009] The outer side of the U-shaped steel sheet pile is provided with two sleeves fixedly connected;

[0010] The pressing assembly is used to connect the two U-shaped steel sheet piles and press the U-shaped steel sheet pile installed between the two U-shaped steel sheet piles. The pressing assembly includes a cross bar, a threaded hole is provided in the middle of the cross bar, a screw is threadedly connected to the threaded hole, and both ends of the cross bar are fixedly connected to the plug plate.

[0011] Preferably, a rubber strip is adhered and fixed to one side of the end portion of the J-shaped plate.

[0012] Preferably, a cylinder is fixedly connected to the inner side of the U-shaped steel sheet pile.

[0013] Preferably, the lower end of the inserting plate is tapered to facilitate insertion into the corresponding sleeve.

[0014] Preferably, the inner diameter of the cylinder is equal to the diameter of the end of the screw.

[0015] Preferably, the inner hole size of the sleeve matches the upper size of the inserting plate.

[0016] Compared with the related art, the beneficial effects of the present invention are:

[0017] A set of U-shaped steel sheet piles and two J-shaped plates are arranged and installed, and the top pressure of the top pressure assembly is used to achieve mutual sealing. After splicing, it provides excellent sealing effect and effectively prevents the occurrence of water seepage.

[0018] Through the top pressure of the top pressure component, a group of installed U-shaped steel sheet piles are formed into a whole, and the compressive support capacity is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0020] Figure 2 For the utility model Figure 1 A partial enlarged view of point A in the middle.

[0021] Figure 3 Schematic diagram of the connection structure of some parts of the utility model Figure 1 .

[0022] Figure 4 Schematic diagram of the connection structure of some parts of the utility model Figure 2 .

[0023] Figure 5 This is an exploded view of the parts of the present utility model.

[0024] Figure 6 This is a schematic diagram of the installation state of the utility model.

[0025] In the picture:

[0026] 1. U-shaped steel sheet pile, 2. Sleeve, 3. Top pressure assembly, 301. Cross bar, 302. Threaded hole, 303. Insert plate, 304. Screw, 5. Cylinder, 6. Rubber strip, 7. J-shaped plate, 8. Slot. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] An anti-seepage foundation pit support structure includes a U-shaped steel sheet pile 1 and a top pressure assembly 3. The two sides of the U-shaped steel sheet pile 1 are fixedly connected to J-shaped plates 7, the inner side of the J-shaped plate 7 is provided with a clamping groove 8, and the outer side of the U-shaped steel sheet pile 1 is provided with two sleeves 2 fixedly connected;

[0029] The pressing assembly 3 is used to connect the two U-shaped steel sheet piles 1 and press the U-shaped steel sheet piles 1 installed between the two U-shaped steel sheet piles 1. The pressing assembly 3 includes a cross bar 301, a threaded hole 302 is provided in the middle of the cross bar 301, a screw 304 is threadedly connected to the threaded hole 302, and the two ends of the cross bar 301 are respectively fixedly connected with a plug plate 303.

[0030] A rubber strip 6 is adhered and fixed to one end of each of the J-shaped plates 7 .

[0031] A cylinder 5 is fixedly connected to the inner side of the U-shaped steel sheet pile 1 .

[0032] The lower end of the inserting plate 303 is tapered to facilitate insertion into the corresponding sleeve 2 .

[0033] The inner diameter of the cylinder 5 is equal to the diameter of the end of the screw 304 , and the end of the screw 304 can be inserted into the cylinder 5 to prevent the end of the screw 304 from deviating.

[0034] The inner hole size of the sleeve 2 matches the upper size of the inserting plate 303 .

[0035] Working principle:

[0036] When using the device, first install the device. During installation, use the hydraulic device to insert the U-shaped steel sheet pile 1 into the target position. When inserting, first insert the whole formed by one U-shaped steel sheet pile 1 and two J-shaped plates 7 into the target position, then rotate the whole formed by another U-shaped steel sheet pile 1 and two J-shaped plates 7 by 180 degrees before inserting it. When inserting, the end of the corresponding J-shaped plate 7 is buckled into the corresponding card slot 8, as shown in the figure. Figure 1 、 Figure 2As shown, the process is repeated to arrange and install a group of U-shaped steel sheet piles 1, and then the plug plates 30 at both ends of the crossbar 301 are inserted into the sleeves 2 on two adjacent U-shaped steel sheet piles 1 arranged in the same direction, and then the screw rod 304 is threaded and passed through the threaded hole 302, and the end of the screw rod 304 is pressed against the cylinder 5. The screw rod 304 supports the corresponding U-shaped steel sheet pile 1 through the cylinder 5, and one side of the end of the J-shaped plate 7 on both sides of the U-shaped steel sheet pile 1 is pressed against the inner side of the groove 8 of the adjacent J-shaped plate 7, and at the same time, one side of the end of the adjacent J-shaped plate 7 is also pressed against the groove 8 on both sides of the U-shaped steel sheet pile 1 in the middle, as shown in FIG. Figure 2 As shown, two sealing lines are realized. Since a rubber strip 6 is provided on one side of the end of the J-shaped plate 7, the seal between the J-shaped plates 7 is tighter.

[0037] Beneficial effect: After a set of U-shaped steel sheet piles 1 and two J-shaped plates 7 are arranged and spliced, mutual sealing is achieved through the top pressure of the top pressure component 3, providing excellent sealing effect after splicing, and effectively preventing the occurrence of water seepage.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-seepage foundation pit support structure, comprising a U-shaped steel sheet pile (1) and a top pressure assembly (3), characterized in that: The two sides of the U-shaped steel sheet pile (1) are respectively fixedly connected with J-shaped plates (7), and the inner side of the J-shaped plate (7) is provided with a clamping groove (8); Two sleeves (2) are fixedly connected to the outer side of the U-shaped steel sheet pile (1); The pressing assembly (3) is used to connect the two U-shaped steel sheet piles (1) and press the U-shaped steel sheet pile (1) installed between the two U-shaped steel sheet piles (1). The pressing assembly (3) includes a cross bar (301), a threaded hole (302) is provided in the middle of the cross bar (301), a screw (304) is threadedly connected to the threaded hole (302), and the two ends of the cross bar (301) are respectively fixedly connected with a plug plate (303).

2. The anti-seepage foundation pit support structure according to claim 1, characterized in that: A rubber strip (6) is adhered and fixed to one side of the end of the J-shaped plate (7).

3. The anti-seepage foundation pit support structure according to claim 1, characterized in that: A cylinder (5) is fixedly connected to the inner side of the U-shaped steel sheet pile (1).

4. The anti-seepage foundation pit support structure according to claim 1, characterized in that: The lower end of the inserting plate (303) is tapered to facilitate insertion into the corresponding sleeve (2).

5. The anti-seepage foundation pit support structure according to claim 3, characterized in that: The inner diameter of the cylinder (5) is equal to the diameter of the end of the screw (304).

6. The anti-seepage foundation pit support structure according to claim 1, characterized in that: The inner hole size of the sleeve (2) matches the upper size of the inserting plate (303).

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