Enclosure reinforcing structure for soft soil foundation pit construction

Abstract

The utility model relates to the technical field of foundation pit construction, in particular to an enclosure reinforcing structure for soft soil foundation pit construction. The lower base is used for being installed on the ground, an upper base is arranged above the lower base, a reinforcing plate is connected to the upper base, a plurality of inserting grooves are formed in the lower base, ground piles are inserted into the inserting grooves respectively, the ground piles are inserted into the ground, the tail ends of the ground piles are connected with limiting clamping heads, and the section size of the limiting clamping heads is larger than that of the ground piles. A second limiting clamping groove is formed in the position, located at the opening portion of the inserting groove, of the upper side face of the lower base, a first limiting clamping groove is formed in the lower side face of the upper base, the first limiting clamping groove and the second limiting clamping groove are combined to form a cylindrical cavity matched with the limiting clamping head in shape, and the limiting clamping head is arranged in the cavity in a clamped mode. According to the utility model, the overall bearing capacity is improved by designing a plurality of inclined ground piles so as to better adapt to the condition of soft soil; through a bolt connection mode, the first limiting clamping groove, the second limiting clamping groove, the limiting clamping head and the ground pile form a whole, and therefore the overall strength is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a retaining and reinforcing structure for soft soil foundation pit construction. BACKGROUND

[0002] Soft soil foundation often encounters a series of engineering problems in foundation pit construction, especially in the process of foundation pit excavation, the bearing capacity of soft soil layer is low, and settlement or deformation is prone to occur, which will affect the safety of surrounding buildings and underground pipelines, and even may lead to foundation pit collapse.

[0003] The existing retaining and reinforcing structure is difficult to cope with the soil quality change prone in soft soil, and part of the structure is complex and has a long construction period. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a retaining and reinforcing structure for soft soil foundation pit construction, which can solve the above-mentioned defects.

[0005] To achieve the above object, the utility model adopts the following technical scheme: it contains the lower base for installing to the ground, the upper base is arranged above the lower base, the reinforcing plate is connected to the upper base, a plurality of insertion grooves are formed in the lower base, the ground pile is respectively inserted in the insertion groove, the ground pile is inserted into the ground, the tail end of the ground pile is connected with the limit clamp head, the cross-sectional dimension of the limit clamp head is greater than that of the ground pile, the limit clamp groove two is formed in the mouth part of the insertion groove on the upper side of the lower base, the limit clamp groove one is formed on the lower side of the upper base, the limit clamp groove one and the limit clamp groove two are combined into the cylindrical cavity matched with the shape of the limit clamp head, and the limit clamp head is clamped in the cavity.

[0006] Preferably, the plurality of ground piles inserted in the lower base are divided into two groups, the two groups of ground piles are symmetrically arranged left and right, and the ground piles are all arranged obliquely, the bottom end of each group of ground piles is inclined outward around the center of the lower base, and the two groups of ground piles form a spider leg-shaped structure.

[0007] Preferably, a plurality of guide shaft sleeves are connected below the lower base, the guide shaft sleeves are all arranged at the lower side mouth part position of the insertion groove, and the ground pile is arranged in the guide shaft sleeve.

[0008] Preferably, a plurality of connecting bolts are arranged on the lower base, a plurality of bolt holes matched with the connecting bolts are arranged on the upper base, the connecting bolts are arranged through the bolt holes, and a plurality of nuts are arranged on the top end of the connecting bolts.

[0009] Preferably, the bottom end of the ground pile is provided with a sharp head.

[0010] After the above structure is adopted, the utility model has the beneficial effects that:

[0011] The utility model discloses a plurality of inclined ground piles are designed through the inclination angle and convert part load into horizontal force, increase the friction between the pile and the soil, thereby improve the overall carrying capacity, to better adapt to the soft soil condition, enhance security and stability, through the bolted connection mode, make the upper base and lower base connection, and the limiting clamping groove no. 1 and limiting clamping groove no. 2 are clamped tightly, make limiting clamping groove no. 1, limiting clamping groove no. 2, limiting clamping head and ground pile form the whole, to guarantee the overall strength, and the whole is the assembled structure, and the installation and dismounting are convenient to reuse. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model;

[0013] Figure 2 It is the installation mode schematic diagram of the utility model;

[0014] Figure 3 It is the bottom view of the upper base in the utility model;

[0015] Figure 4 It is the bottom view of the lower base in the utility model;

[0016] Figure 5 It is the overall structure bottom view of the utility model after hiding the reinforcing plate;

[0017] Figure 6 It is the overall structure front view of the utility model after hiding the reinforcing plate;

[0018] Figure 7 It is the overall structure right view of the utility model after hiding the reinforcing plate;

[0019] Figure 8 It is the partial sectional view of the utility model.

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, lower base, 2, upper base, 3, guide shaft sleeve, 4, ground pile, 5, limiting clamping head, 6, limiting clamping groove no. 1, 7, connecting bolt, 8, bolt hole, 9, nut, 10, sharp head, 11, limiting clamping groove no. 2, 12, reinforcing plate, 13, slot. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.

[0023] Referring toFigures 1-8 As shown, it comprises a lower base 1 for mounting to the ground, an upper base 2 is arranged above the lower base 1, a reinforcing plate 12 is connected to the upper base 2, a plurality of insertion slots 13 are opened in the lower base 1, a ground pile 4 is respectively inserted in each insertion slot 13, the ground pile 4 is inserted into the ground, a limit clamp head 5 is connected to the tail end of the ground pile 4, the cross-sectional size of the limit clamp head 5 is larger than that of the ground pile 4, a limit clamp slot two 11 is opened at the mouth of the insertion slot 13 on the upper side of the lower base 1, a limit clamp slot one 6 is opened on the lower side of the upper base 2, the limit clamp slot one 6 and the limit clamp slot two 11 are combined into a cylindrical cavity matched with the shape of the limit clamp head 5, and the limit clamp head 5 is clamped in the cavity;

[0024] The plurality of ground piles 4 inserted in the lower base 1 are divided into two groups, the two groups of ground piles 4 are symmetrically arranged left and right, and each ground pile 4 is arranged obliquely, the bottom end of each group of ground piles 4 is inclined outward around the center of the lower base 1, and the two groups of ground piles 4 form a spider leg-shaped structure;

[0025] A plurality of guide shaft sleeves 3 are connected below the lower base 1, and the guide shaft sleeves 3 are arranged at the lower side mouth position of the insertion slot 13, and the ground pile 4 is arranged in the guide shaft sleeve 3;

[0026] A plurality of connecting bolts 7 are arranged on the lower base 1, a plurality of bolt holes 8 matched with the connecting bolts 7 are arranged on the upper base 2, the connecting bolts 7 are arranged through the bolt holes 8, and a plurality of nuts 9 are arranged at the top end of the connecting bolts 7;

[0027] The bottom end of each ground pile 4 is provided with a sharp head 10.

[0028] The principle and use process of the utility model are as follows:

[0029] Firstly, the lower base 1 is placed at the position where it needs to be installed, then the ground pile 4 is inserted into the insertion slot 13, and the limit clamp head 5 is clamped into the limit clamp slot two 11 by means of a pressure device, the guide shaft sleeve 3 is used for auxiliary guidance to prevent the angle deviation of the ground pile 4, the diagonal installation method is adopted, the ground pile 4 is sequentially punched, thereby the installation of the lower base 1 is completed, then the upper base 2 is hoisted to the site, the limit clamp slot one 6 is aligned with the limit clamp head 5, after being placed, the limit clamp head 5 is clamped into the limit clamp slot one 6, at the same time, the connecting bolt 7 is inserted into the bolt hole 8, and the nut 9 is installed by the staff;

[0030] In use, the plurality of inclined ground piles 4 convert part of the load into horizontal force through the inclination angle, increase the friction between the pile and the soil, thereby improving the overall bearing capacity, better adapting to the soft soil condition, and enhancing the safety and stability; the upper base 2 and the lower base 1 are connected through the bolt connection, the limit clamp head 5 is clamped tightly by the limit clamp slot one 6 and the limit clamp slot two 11, the limit clamp slot one 6, the limit clamp slot two 11, the limit clamp head 5 and the ground pile 4 form an integral whole, thereby ensuring the overall strength.

[0031] It should be understood that the above specific embodiments of the present application are merely used for illustrative explanation or principle of the present application, and do not constitute limitation of the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A retaining and reinforcing structure for the construction of a foundation pit in soft ground, comprising a lower base (1) for mounting to the ground, characterised in that: The upper base (2) is arranged above the lower base (1), the reinforcing plate (12) is connected to the upper base (2), a plurality of insertion grooves (13) are formed in the lower base (1), the ground piles (4) are respectively arranged in the insertion grooves (13), the ground piles (4) are inserted into the ground, the tail ends of the ground piles (4) are connected to the limiting clamping heads (5), the cross-sectional size of the limiting clamping heads (5) is larger than that of the ground piles (4), the limiting clamping groove two (11) is formed in the upper side of the lower base (1) and located at the mouth of the insertion groove (13), the limiting clamping groove one (6) is formed in the lower side of the upper base (2), the limiting clamping groove one (6) and the limiting clamping groove two (11) are combined to form a cylindrical cavity matched with the shape of the limiting clamping head (5), and the limiting clamping head (5) is clamped in the cavity.

2. The retaining and reinforcing structure for soft soil foundation pit construction according to claim 1, characterized in that: The plurality of ground piles (4) arranged in the lower base (1) are divided into two groups, the two groups of ground piles (4) are symmetrically arranged left and right, and the ground piles (4) are all arranged obliquely, the bottom ends of the ground piles (4) in each group are inclined outward around the center of the lower base (1), and the two groups of ground piles (4) form a spider leg-shaped structure.

3. The retaining and reinforcing structure for soft soil foundation pit construction according to claim 1, characterized in that: A plurality of guide shaft sleeves (3) are connected to the lower base (1), the guide shaft sleeves (3) are all arranged at the lower side mouth positions of the insertion grooves (13), and the ground piles (4) are arranged in the guide shaft sleeves (3).

4. The retaining and reinforcing structure for soft soil foundation pit construction according to claim 1, characterized in that: A plurality of connecting bolts (7) are arranged on the lower base (1), a plurality of bolt holes (8) matched with the connecting bolts (7) are arranged on the upper base (2), the connecting bolts (7) are arranged through the bolt holes (8), and a plurality of nuts (9) are arranged at the top ends of the connecting bolts (7).

5. The retaining and reinforcing structure for soft soil foundation pit construction according to claim 1, characterized in that: The bottom ends of the ground piles (4) are all provided with sharp heads (10).

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