Groove supporting structure for old urban area construction

Abstract

The utility model discloses a groove supporting structure for old urban area construction, which comprises an upper support formed by arranging a plurality of parallel channel steels; the lower surface of the upper support is connected with adjustable diagonal bracings, and a vertical support is clamped between the adjustable diagonal bracings; the adjustable diagonal brace comprises two pieces of channel steel which are arranged in parallel, and the two pieces of channel steel are perpendicular to the multiple pieces of channel steel of the upper support; kidney-shaped holes penetrating through the upper surface and the lower surface are formed in the two ends of channel steel of the upper support, a plurality of penetrating threaded holes are formed in the upper surface of the adjustable diagonal brace at equal intervals, and the adjustable diagonal brace is connected with the kidney-shaped holes of the upper support in the mode that screws penetrate through the threaded holes. The vertical support is arranged between the two pieces of channel steel of the adjustable diagonal bracings; the device solves the problems that in the prior art, collapse is prone to occurring during construction in a poor geological area, and an existing concrete construction method is too long in construction period, low in efficiency and lack of an efficient supporting mode, and has the advantages that supporting can be rapidly conducted in a groove, and the construction efficiency and safety are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of municipal construction technology, specifically relating to a trench support structure for construction in old urban areas. Background Technology

[0002] During trench construction in the central sections of old urban areas, it is frequently found that the roads were repaired a long time ago, with miscellaneous fill soil beneath the surface layer. These areas collapse during excavation. Current methods include slope excavation, reinforced concrete reverse construction, or sheet pile technology. However, due to the narrowness of roads in old urban areas, slope excavation cannot meet the required slope ratio, and complete road closures cause inconvenience to residents. Reinforced concrete reverse construction has a long construction period and occupies the road for an extended time, causing further inconvenience. Sheet pile technology poses significant safety hazards in areas with numerous above-ground and underground pipelines in old urban areas and is also subject to specific soil conditions, such as rocky or hard soil. The construction of trenches in geologically challenging areas is difficult. Therefore, existing support structures are often used, but these are typically fixed-width, mostly constructed with concrete, and are one-time structures that cannot be stored after use. They are usually buried on-site within the construction area, which is time-consuming, labor-intensive, and costly. In areas with numerous underground pipelines, the construction area is insufficient, making it difficult to proceed. If conventional sheet pile technology is used for support, the support strength is insufficient and it can easily damage pipelines in the construction area. Therefore, a trench support structure for geologically challenging areas that is easy to assemble and disassemble and requires less construction space is needed to solve these technical problems. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a trench support structure for construction in old urban areas. This device solves the problems of easy collapse when constructing in areas with poor geological conditions, the long construction period and low efficiency of existing concrete construction methods, and the lack of efficient support methods. It has the characteristics of being able to quickly support in the trench, ensuring construction efficiency and safety.

[0004] To achieve the above design, the technical solution adopted by this utility model is as follows:

[0005] The trench support structure used in the construction of old urban areas includes an upper support, which is composed of multiple parallel channel steels arranged in a row. The upper support protrudes at both ends and supports the top surface of both banks of the trench. Adjustable braces are connected to both ends of the lower surface of the upper support, and multiple vertical supports are sandwiched between the adjustable braces.

[0006] Preferably, the adjustable brace includes two parallel channel steels, which are perpendicular to the multiple channel steels of the upper support.

[0007] Preferably, the upper support channel steel has waist-shaped holes that penetrate the upper and lower surfaces at both ends, and the adjustable support has multiple through threaded holes at equal intervals on its upper surface, with the spacing between the threaded holes being equal to the spacing between the multiple upper supports.

[0008] Preferably, a screw rod passes through the threaded hole of the adjustable support, and the screw rod is fixed to the waist-shaped hole of the upper support through the threaded hole. The other end of the screw rod is locked by at least two nuts.

[0009] Preferably, the vertical support is a steel strip plate structure, with multiple vertical supports sandwiched between two channel steels of adjustable bracing.

[0010] Preferably, the bottom end of the vertical support is connected to a fixing cone, which is inserted into the soil at the bottom for fixation.

[0011] The beneficial effects of the trench support structure used in the construction of old urban areas are as follows:

[0012] This device solves the problems of easy collapse during construction in areas with poor geological conditions, the long construction period and low efficiency of existing concrete construction methods, and the lack of efficient support methods. It features rapid support in trenches, ensuring both construction efficiency and safety. The device is equipped with adjustable bracing with adjustable spacing and position, which can not only strengthen the vertical support but also adjust the spacing, making it suitable for trench construction of various sizes. Furthermore, the entire device body is a detachable structure with no welded parts, facilitating later recycling and reuse. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a front structural diagram of an embodiment of the present utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of the connection between the adjustable brace and the upper support in an embodiment of this utility model;

[0016] The attached diagram is labeled as follows: upper support 1, adjustable counter brace 2, vertical support 3, waist-shaped hole 4, threaded hole 5, screw 6. Detailed Implementation

[0017] like Figures 1-2 In the middle, the trench support structure used for construction in old urban areas includes an upper support 1, which is composed of multiple parallel channel steels arranged in a row. The upper support 1 protrudes at both ends and supports the top surface of both sides of the trench. The lower surface of the upper support 1 is connected to adjustable braces 2 at both ends, and multiple vertical supports 3 are sandwiched between the adjustable braces 2.

[0018] Preferably, the adjustable brace 2 includes two parallel channel steels, which are perpendicular to the multiple channel steels of the upper support 1.

[0019] like Figure 3 Preferably, the upper support 1 has waist-shaped holes 4 that penetrate the upper and lower surfaces at both ends of the channel steel, and the adjustable support 2 has multiple through threaded holes 5 at equal intervals on its upper surface, the spacing of the threaded holes 5 being equal to the spacing between the multiple upper supports 1.

[0020] Preferably, a screw 6 passes through the threaded hole 5 of the adjustable support 2, and the screw 6 passes through the threaded hole 5 and is fixed to the waist-shaped hole 4 of the upper support 1. The other end of the screw 6 is locked by at least two nuts.

[0021] Preferably, the vertical support 3 is a steel strip plate structure, and multiple vertical supports 3 are clamped between two channel steels of the adjustable brace 2.

[0022] Preferably, the bottom end of the support plate 31 is connected to a fixing cone, which is inserted into the soil at the bottom for fixation.

[0023] The construction method for the trench support structure used in the construction of old urban areas includes the following steps:

[0024] The upper supports 1 are laid out sequentially at predetermined intervals, and the adjustable supports 2 at both ends are installed according to the predetermined width according to the measured support width L. Multiple vertical supports 3 are placed between the two channel steel gaps of the adjustable supports 2 according to the required width, and then the adjustable supports 2 are locked by screws 6 to fix the support plate 31 to form a support for construction. After the construction is completed, the device is disassembled and stored as a whole.

[0025] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined without conflict. The protection scope of this utility model should be defined as the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A trench support structure for construction in old urban areas, characterized in that: It includes an upper support (1), which is composed of multiple parallel channel steels arranged in a row. The upper support (1) protrudes at both ends and supports the top surface on both sides of the trench. The lower surface of the upper support (1) is connected to adjustable braces (2) at both ends, and multiple vertical supports (3) are sandwiched between the adjustable braces (2).

2. The trench support structure for old city construction according to claim 1, wherein: The adjustable brace (2) includes two parallel channel steels, which are perpendicular to the multiple channel steels of the upper support (1).

3. The trench support structure for old city construction according to claim 2, wherein: The upper support (1) has waist-shaped holes (4) at both ends of the channel steel that penetrate the upper and lower surfaces.

4. The trench support structure for old city construction according to claim 3, wherein: The adjustable brace (2) has multiple through threaded holes (5) at equal intervals on its upper surface. The spacing of the threaded holes (5) is equal to the spacing between the multiple upper supports (1).

5. The trench support structure for old city construction according to claim 4, wherein: A screw (6) passes through the threaded hole (5) of the adjustable support (2). The screw (6) passes through the threaded hole (5) and is fixed to the waist-shaped hole (4) of the upper support (1). The other end of the screw (6) is locked by at least two nuts.

6. The trench support structure for old city construction according to claim 1, wherein: The vertical support (3) is a steel strip plate structure, and the vertical support (3) is sandwiched between two channel steels of the adjustable brace (2).

7. The trench support structure for old city construction according to claim 1, wherein: The bottom end of the vertical support (3) is connected to a fixing cone, which is inserted into the soil at the bottom for fixation.

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