Simple double-layer steel sheet pile supporting device
Through a simple double-layer steel sheet pile support device, the main support pile, secondary support pile and I-steel connection are used to fill the viscous backfill soil, which solves the problem of high construction costs of earth-rock cofferdams and steel sheet pile cofferdams, and achieves a stable and low-cost construction environment.
Patent Information
- Application Number
- CN202422240405.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing earth-rock cofferdams and steel sheet pile cofferdams have high construction period costs at the construction site, especially under soft soil base conditions, the deformation and bending moment problems of double-layer steel sheet pile cofferdams require additional support measures.
A simple double-layer steel sheet pile support device is adopted, including main support piles and auxiliary support piles, connecting I-steel purlins and connecting beams, filled with viscous backfill, the main support piles are fixed on the river channel, and the auxiliary support piles are fixed on the riverbed line, improving stability through the connection of I-steel.
It provides a stable construction environment, reduces construction costs, is simple and recyclable, and has high promotionality.
Smart Images
Figure CN223074763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit support, in particular to a simple double - layer steel sheet pile support device. Background Art
[0002] In the case of the existence of a river channel at the construction site, it is often necessary to take certain cofferdam measures to prevent the river channel from rising due to rainfall and flowing back into the construction site. For soft soil foundations, the commonly used cofferdams are earth - rock cofferdams and steel sheet pile cofferdams. The construction period cost of building an earth - rock cofferdam is relatively high, while the steel sheet pile cofferdam has the characteristics of short construction period, high strength and strong recoverability. In a double - layer steel sheet pile cofferdam, the maximum deformation and bending moment occur at the position close to the river bed, and certain support measures need to be taken at this part. For this purpose, a simple double - layer steel sheet pile support device is required. Content of the Utility Model
[0003] The purpose of the utility model is to provide a simple double - layer steel sheet pile support device to solve the technical problem that the commonly used cofferdams are earth - rock cofferdams and steel sheet pile cofferdams, and the construction period cost of building an earth - rock cofferdam is relatively high.
[0004] The purpose of the utility model can be realized by the following technical solutions:
[0005] A simple double - layer steel sheet pile support device includes a main support pile and a secondary support pile arranged in parallel side by side. The main support pile is fixedly installed on the existing river channel, and the secondary support pile is fixedly installed on the existing river bed line. I - shaped steel purlins are fixedly connected to the opposite surfaces of the main support pile and the secondary support pile. Multiple groups of I - shaped steel connecting beams are fixedly connected between the two groups of I - shaped steel purlins. Viscous backfill soil is filled between the main support pile and the secondary support pile and above the existing river bed line.
[0006] As a further scheme of the utility model: A connecting steel plate is fixedly connected between the main support pile and the secondary support pile, and the I - shaped steel purlin and the I - shaped steel connecting beam are fixedly connected to the connecting steel plate.
[0007] As a further scheme of the utility model: Both the main support pile and the secondary support pile are steel sheet pile supports.
[0008] As a further scheme of the utility model: The main support pile is composed of several U - shaped steel plates, and adjacent U - shaped steel plates are arranged in opposite directions and connected.
[0009] As a further scheme of the utility model: L - shaped connecting plates are fixedly connected to both sides of the U - shaped steel plate. The L - shaped connecting plate and the side wall of the U - shaped steel plate form a clamping groove, and the clamping groove is buckled with the side plate of the L - shaped connecting plate.
[0010] As a further scheme of the utility model: The side of the main support pile close to the river bed needs to be higher than the highest point of the river bed.
[0011] As a further solution of the present utility model: the thickness of the viscous backfill soil is not less than the depth of the adjacent riverbed.
[0012] The beneficial effects of the present utility model: the device of the present utility model provides an ideal construction environment for on-site construction. The device has a simple and stable structure, low cost, can be recycled after use, and the processes involved are all mature construction processes, with high popularization and application value. Description of the Drawings
[0013] The present utility model will be further described below with reference to the accompanying drawings.
[0014] Figure 1 It is a schematic structural diagram of the whole of the present utility model;
[0015] Figure 2 It is a partially enlarged schematic structural diagram of the main retaining pile of the present utility model;
[0016] Figure 3 It is a schematic structural diagram of on-site construction of the present utility model.
[0017] In the figure: 10, main retaining pile; 11, U-shaped steel plate; 12, L-shaped connecting plate; 13, clamping groove; 20, auxiliary retaining pile; 30, I-beam purlin; 40, I-beam connecting beam; 50, connecting steel plate; 60, viscous backfill soil; 100, existing river course; 200, existing riverbed line. Detailed Embodiment
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figures 1 - 3 As shown, the present utility model is a simple double-layer steel sheet pile retaining device, including a main retaining pile 10 and an auxiliary retaining pile 20 arranged in parallel side by side. The main retaining pile 10 is fixedly installed on the existing river course 100, the auxiliary retaining pile 20 is fixedly installed on the existing riverbed line 200, I-beam purlins 30 are fixedly connected to the opposite surfaces of the main retaining pile 10 and the auxiliary retaining pile 20, and the two groups of I-beam purlins 30 are fixedly connected by a plurality of groups of I-beam connecting beams 40. A viscous backfill soil 60 is filled between the main retaining pile 10 and the auxiliary retaining pile 20 and above the existing riverbed line 200.
[0020] A connecting steel plate 50 is fixedly connected between the main retaining pile 10 and the auxiliary retaining pile 20, and the I-beam purlin 30 and the I-beam connecting beam 40 are fixedly connected to the connecting steel plate 50.
[0021] Specifically, the setting of the connecting steel plate 50 improves the overall connection strength of the entire retaining device and ensures stability during retaining.
[0022] Both the main retaining pile 10 and the auxiliary retaining pile 20 are steel plate retaining piles.
[0023] The main retaining pile 10 is composed of a number of U-shaped steel plates 11, and adjacent U-shaped steel plates 11 are arranged in opposite directions and connected.
[0024] Both sides of the U-shaped steel plate 11 are fixedly connected with L-shaped connecting plates 12. The L-shaped connecting plates 12 and the side walls of the U-shaped steel plate 11 form a clamping groove 13, and the clamping groove 13 is snap-connected with the side plates of the L-shaped connecting plates 12.
[0025] The side of the main retaining pile 10 close to the riverbed needs to be higher than the highest point of the riverbed.
[0026] The thickness of the cohesive backfill soil 60 is not less than the depth near the riverbed.
[0027] The specific construction method of the present utility model is as follows:
[0028] The main body of the steel sheet pile is a double-row symmetric and parallel distribution of the main retaining pile 10 and the auxiliary retaining pile 20;
[0029] Both the main retaining pile 10 and the auxiliary retaining pile 20 are Larssen type III steel sheet piles;
[0030] The side of the main retaining pile 10 close to the riverbed needs to be higher than the highest point of the riverbed;
[0031] Both the I-beam purlin 30 and the I-beam connecting beam 40 are 20a type I-beams;
[0032] The I-beam purlin 30 is welded to the inner sides of the upper parts of the two rows of main retaining piles 10 and auxiliary retaining piles 20, parallel to the main body of the steel sheet pile, and their relationship is as Figure 2 shown;
[0033] The I-beam connecting beam 40 is perpendicularly arranged to the I-beam purlin 30 and is welded on the contact surface with the I-beam purlin 30, and their relationship is as Figure 2 shown;
[0034] The inside of the main body of the steel sheet pile needs to be filled with cohesive backfill soil 60.
[0035] Parameters such as the overall length of the double-layer steel sheet pile retaining device, the length of the main body of the steel sheet pile, and the volume of the cohesive backfill soil 60 are adjusted according to the site conditions. The thickness of the cohesive backfill soil 60 should not be less than the bottom of the riverbed near it.
[0036] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as defining the scope of implementation of the present utility model. All equivalent changes and improvements made in accordance with the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.
Claims
1. A simple double-layer steel sheet pile support device, characterized in that, It includes a main support pile (10) and an auxiliary support pile (20) arranged in parallel side by side. The main support pile (10) is fixedly installed on the existing river channel (100), and the auxiliary support pile (20) is fixedly installed on the existing riverbed line (200). The main support pile (10) and the auxiliary support pile (20) are both fixedly connected with I-beam purlins (30) on the opposite sides. The two groups of I-beam purlins (30) are fixedly connected by multiple groups of I-beam connecting beams (40). The space between the main support pile (10) and the auxiliary support pile (20) and above the existing riverbed line (200) is filled with cohesive backfill soil (60).
2. The simple double - layer steel sheet pile support device according to claim 1, characterized in that, A connecting steel plate (50) is fixedly connected between the main support pile (10) and the auxiliary support pile (20), and the I-beam purlin (30) and the I-beam connecting beam (40) are fixedly connected to the connecting steel plate (50).
3. The simple double-row steel sheet pile support device according to claim 1, characterized in that, Both the main support pile (10) and the auxiliary support pile (20) are steel sheet support piles.
4. The simple double-row steel sheet pile support device according to claim 3, characterized in that, The main support pile (10) is composed of several U-shaped steel plates (11), and the adjacent U-shaped steel plates (11) are arranged in opposite directions and connected together.
5. A simple double - layer steel sheet pile support device according to claim 4, characterized in that, Both sides of the U-shaped steel plate (11) are fixedly connected with L-shaped connecting plates (12). The L-shaped connecting plates (12) and the side walls of the U-shaped steel plate (11) form a clamping groove (13), and the clamping groove (13) is buckled and connected with the side plates of the L-shaped connecting plates (12).
6. The simple double-row steel sheet pile support device according to claim 1, characterized in that, The side of the main support pile (10) near the riverbed should be higher than the highest point of the riverbed.
7. A simple double - layer steel sheet pile support device according to claim 1, characterized in that, The thickness of the cohesive backfill soil (60) is not less than the depth near the riverbed.