CN212077954U - A Portable Assembled and Turnable Deep Foundation Pit Steel Box Supporting Structure - Google Patents

Abstract

The utility model discloses a portable assembled and turnable deep foundation pit steel box support structure, which relates to the technical field of civil engineering, in particular to a portable assembled and turnable deep foundation pit steel box support structure, comprising steel blocks, The number of the steel blocks is four, and the four steel blocks include a channel steel and a steel plate, the upper and lower sides of the channel steel are welded with steel plates, and the upper surface of the steel plate is threadedly sleeved with fixing bolts. This portable, prefabricated and revolvable deep foundation pit steel box support structure uses the combination of channel steel and steel plate to weld channel steel and steel plate to form a steel plate layer, and uses the combination of fixing bolts and diagonal braces. , use diagonal braces to connect the steel plates, and at the same time, fix them with fixing bolts, and then install the steel plates between layers, so that the portable assembled and revolvable deep foundation pit steel box support structure can be assembled according to the depth of the foundation pit. Height of steel box.

Description

A Portable Assembled and Turnable Deep Foundation Pit Steel Box Supporting Structure

technical field

The utility model belongs to the technical field of civil engineering, in particular to a portable assembled and turnable deep foundation pit steel box supporting structure.

Background technique

The foundation pit project mainly includes the design and construction of the foundation pit support system and the earthwork excavation. It is a highly comprehensive system engineering. It requires close cooperation between geotechnical and structural engineering technicians. The foundation pit support system is a temporary structure and is no longer required after the construction of the underground works is completed. The foundation pit and the foundation trench are both used to build the foundation of the building, but the plane shape is different. The foundation pit is square or close to square; the foundation groove is long and sometimes long. What you have to grasp is the difference in their shapes. A foundation pit refers to a foundation pit whose bottom area is within 27 square meters (not 20) and the long side of the bottom is less than three times the short side. The base groove refers to the base groove if the width of the bottom of the groove is within 3 meters, and the length of the groove is greater than 3 times the width of the groove. That is to say, a deep foundation pit is generally defined as: the bottom area is within 27 square meters (not 20), the long side of the bottom is less than three times the short side, the excavation depth is more than 5 meters (including 5 meters) or the basement is more than three floors ( (including three layers), or projects whose depth is not more than 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complex. During the construction of the deep foundation pit sewage pipeline, due to the deep foundation pit, the steel sheet pile construction process is complicated, limited by the site, the operation is inconvenient, the cost is greatly increased, and the construction is inconvenient. Foundation pit steel box support structure.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the utility model provides a portable assembled and turnable deep foundation pit steel box supporting structure, which solves the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a portable assembled and turnable deep foundation pit steel box support structure, including steel blocks, the number of the steel blocks is four, and the four The steel block includes a channel steel and a steel plate, the upper and lower sides of the channel steel are welded with steel plates, the upper surface of the steel plate is threadedly sleeved with fixing bolts, and one side of the steel plate is movably sleeved with a diagonal strut. Both sides of the support column are threadedly sleeved with fixing bolts, and one end of the fixing bolts is threadedly sleeved to the inside of the steel plate.

Further, the channel steel adopts a channel steel with a diameter of 28#b.

Further, the steel plate is a 12mm thick steel plate.

Further, the diagonal bracing is made of channel steel with a diameter of 28#b, the diameter of the diagonal bracing is 1.5 meters in length, and the spacing of the diagonal bracing is 12 cm.

Optionally, the fixing bolts are M20 bolts.

Beneficial effects:

1. This portable, prefabricated and revolvable deep foundation pit steel box support structure uses the combination of channel steel and steel plate to weld channel steel and steel plate to form a steel plate layer. Used together, the steel plates are connected by diagonal braces and fixed by fixing bolts, and then the steel plates are installed between layers, so that the portable prefabricated and revolvable deep foundation pit steel box support structure can be assembled according to the depth of the foundation pit. Steel boxes of different heights are used for temporary support, thereby ensuring the safety of foundation pit excavation, and effectively solving the problem of difficult excavation and support for deep foundation pits. And the use of fixing bolts for fixing ensures that the steel box is easy to disassemble and can be recycled, which greatly saves costs and improves the practicability of the portable assembled and turnable deep foundation pit steel box supporting structure.

Description of drawings

1 is a schematic plan view of the utility model;

Fig. 2 is the front elevation schematic diagram of the utility model;

Fig. 3 is the side elevation schematic diagram of the utility model;

Figure 4 Detail of the connection of the diagonal points;

Figure 5 Detail of the diagonal bracing node;

Figure 6 Detail of the connection of steel blocks.

In the picture: 1. Channel steel; 2. Steel plate; 3. Fixing bolt; 4. Diagonal strut; 5. Steel block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Please refer to Fig. 1 to Fig. 6, the present utility model provides a technical solution: a portable assembled and revolvable deep foundation pit steel box support structure, comprising steel blocks 5, the number of the steel blocks 5 is four, four Steel block 5 includes channel steel 1 and steel plate 2. Channel steel 1 adopts channel steel with a diameter of 28#b, and steel plate 2 is welded on the upper and lower sides of channel steel 1. Steel plate 2 adopts 12mm thick steel plate, and passes through channel steel 1 and steel plate 2. A steel plate block 5 is formed, four steel plate blocks 5 are used to form a steel plate box, and a plurality of steel plate boxes are connected by fixing bolts 3, and a steel plate box supporting structure of different heights can be assembled, which improves the practicability of the steel plate box supporting structure , the upper surface of the steel plate 2 is threadedly sleeved with a fixing bolt 3, one side of the steel plate 2 is movably sleeved with a diagonal brace 4, the diagonal brace 4 is made of channel steel with a diameter of 28#b, and the diameter of the diagonal brace 4 is the length 1.5 meters and the spacing of the diagonal braces is 12 cm. The two sets of steel boxes are installed with diagonal bracing columns 4, which ensures the stability of the portable prefabricated and revolvable deep foundation pit steel box supporting structure. The diagonal bracing columns 4 Both sides are threadedly sleeved with fixing bolts 3, and one end of the fixing bolts 3 is threadedly sleeved to the inside of the steel plate 2. The fixing bolts 3 are M20 bolts, and the fixing bolts 3 are used as the portable assembly-type revolvable deep foundation pit steel plate box. The connection components inside the support structure are convenient for installation and disassembly, which improves the convenience of use of the portable assembled and turnable deep foundation pit steel box support structure.

To sum up, the portable prefabricated and revolvable deep foundation pit steel box support structure, when using, first purchase the corresponding materials, cut the channel steel 1 that meets the size, cut the steel plate 2 of the required size, and weld the channel steel 1 after welding. It is welded with the channel steel 1 according to Fig. 2 and Fig. 3 to form steel blocks 5 of different sizes. The steel blocks 5 are spliced together according to Fig. 1, reinforced with fixing bolts 3 according to Fig. 4, and combined into a steel box, The height of the steel plate box is 1.5 meters. The four corners of the steel plate box are reinforced with diagonal struts 4 and steel plates 2 with fixing bolts 3 as shown in Figure 5. Finally, according to the depth of the foundation pit, steel plates of different heights are combined, and each steel plate box Use fixing bolts 3 to connect them together according to Figure 5.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. A portable prefabricated and revolvable deep foundation pit steel box support structure, comprising steel blocks (5), characterized in that: the number of the steel blocks (5) is four, and the four steel blocks ( 5) Including a channel steel (1) and a steel plate (2), the upper and lower sides of the channel steel (1) are welded with steel plates (2), and the upper surface of the steel plate (2) is threadedly sleeved with fixing bolts (3) A diagonal brace (4) is movably sleeved on one side of the steel plate (2), and fixing bolts (3) are threadedly sleeved on both sides of the diagonal brace (4), and the fixing bolts (3) One end of the screw is threaded into the inside of the steel plate (2). 2. A portable assembled and turnable deep foundation pit steel box support structure according to claim 1, characterized in that: the channel steel (1) adopts a channel steel with a diameter of 28#b. 3 . The portable assembled and turnable deep foundation pit steel box support structure according to claim 1 , wherein the steel plate ( 2 ) adopts a 12 mm thick steel plate. 4 . 4. A portable assembled and revolvable deep foundation pit steel box support structure according to claim 1, characterized in that: the diagonal support column (4) is made of channel steel with a diameter of 28#b, and the The diameter of the diagonal braces (4) is 1.5 meters in length and the spacing of the diagonal braces is 12 cm. 5 . The portable assembled and turnable deep foundation pit steel box support structure according to claim 1 , wherein the fixing bolts ( 3 ) are M20 bolts. 6 .

Images