Geotechnical engineering loose earth support structure
By designing a cast-in-place pipe and reinforcing rod structure, and utilizing a connecting borehole and spring support mechanism, efficient reinforcement of loose soil was achieved, solving the problems of low strength, high cost, and complex construction in traditional methods, and improving project safety and construction efficiency.
Patent Information
- Application Number
- CN202522080616.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-27
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-27
AI Technical Summary
Traditional methods of supporting loose soil have problems such as low strength, high cost, complex construction, and difficulty in adapting to complex geological conditions, resulting in low project safety and construction efficiency.
The foundation is reinforced by using a casting pipe and reinforcing rod structure. Concrete mortar is poured in using a grouting machine, and the interconnected boreholes and the spring support mechanism of the reinforcing rods are used to ensure that the mortar is evenly distributed and firmly embedded in the foundation.
It improves the overall stability and bearing capacity of the foundation, simplifies the construction process, reduces construction complexity and cost, and adapts to complex geological conditions.
Smart Images

Figure CN224678664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loose soil support technology, specifically a loose soil support structure for geotechnical engineering. Background Technology
[0002] Currently, in the field of geotechnical engineering, the treatment and reinforcement of loose soil is an important and complex task. Due to the weak cohesion between loose soil particles and the large porosity, the overall stability and bearing capacity of the soil are low. In engineering construction, such as foundation pit excavation, slope support, and tunnel excavation, loose soil often becomes the main constraint on engineering safety and construction efficiency.
[0003] Traditional methods for supporting loose earthwork mainly involve constructing temporary support structures, such as retaining walls and retaining piles, using materials like timber, steel, or concrete. However, these methods have many limitations. For example, timber support structures have low strength, are prone to moisture and rot, and have a short service life; steel support structures, while having high strength, are expensive, and the installation and dismantling process is complex, resulting in low construction efficiency; concrete support structures have long construction cycles, high requirements for the site environment, and are difficult to adapt to complex and changing geological conditions.
[0004] Therefore, we propose a loose soil support structure for geotechnical engineering, which can effectively reinforce the interior of the foundation and improve the overall stability and bearing capacity of the foundation. Utility Model Content
[0005] The purpose of this utility model is to provide a support structure for loose soil in geotechnical engineering, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a loose soil support structure for geotechnical engineering, including a casting pipe, wherein multiple sets of casting pipes are arranged, and the multiple sets of casting pipes are distributed at the top of the foundation. A first borehole is opened at the bottom of each set of casting pipes, and multiple sets of equidistantly distributed second boreholes are opened on the slope of the foundation. A reinforcing rod is inserted and installed in each set of second boreholes, and a reinforcing mechanism is installed at one end of each set of reinforcing rods.
[0007] Optionally, the reinforcement mechanism includes recessed grooves on both sides of one end of the reinforcement rod, rotating shafts rotatably installed in both sets of recessed grooves, abutment plates fixedly installed in the middle of both sets of rotating shafts, and springs sleeved on both sides of each set of rotating shafts.
[0008] The second borehole was reinforced by adopting the above technical solution.
[0009] Optionally, each set of springs is fixedly installed on both sides of the inner wall of the embedded groove and the side wall of the abutment plate, and each set of abutment plate side walls corresponds to the inner wall of the first drill hole.
[0010] By adopting the above technical solution, the support plate can be supported.
[0011] Optionally, the first borehole in each group is vertical, and the second borehole in each group is horizontal, with the first borehole and multiple groups of second boreholes connected to each other on the same plane.
[0012] By adopting the above technical solution, it can be ensured that the first borehole and the second borehole are interconnected.
[0013] Optionally, each set of reinforcing rods is hollow inside, each set of reinforcing rods has a guide port on its inner side, and each set of reinforcing rods has a discharge port on its outer side.
[0014] By adopting the above technical solution, the mortar in the first borehole can be discharged.
[0015] Optionally, each set of reinforcing rods has a stop block fixedly installed at both ends of its inner side, and the tips of the multiple sets of stop blocks correspond to the side walls of each set of stop plates.
[0016] By adopting the above technical solution, the support plate can be supported.
[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0018] The technical solution of this application involves continuously pouring concrete mortar from the pouring pipe using a grouting machine. Because multiple sets of second boreholes are interconnected with the first borehole, the concrete mortar can be distributed in a plow-like pattern inside the foundation, effectively reinforcing the foundation. Simultaneously, after multiple sets of reinforcing rods are inserted into the second boreholes, once one end of the reinforcing rod is wrapped around the first borehole, the abutments on both sides of one end of the reinforcing rod will be supported by springs, opening up the abutments on both sides of the reinforcing rod. When the operator pulls back the reinforcing rod, it will be firmly supported inside the second borehole by the two sets of reinforcing plates, further supporting the inner cavity of the second borehole and preventing loose soil from filling the inner cavity of the second borehole, thus preventing mortar from being poured in.
[0019] Each set of reinforcing rods has a stop block fixedly installed at both ends on its inner side, and the tips of multiple sets of stop blocks correspond to the side walls of each set of stop plates. When the stop plates on both sides of one end of the reinforcing rod are unfolded by the support force of the spring, the unfolded stop plates will be supported by the stop blocks, supporting the two sets of stop plates in the vertical direction. This ensures that when the operator pulls back the reinforcing rod, the stop plates distributed on both sides of the reinforcing rod are firmly supported on the inner wall of the first drill hole, further improving the stability and firmness of the reinforcing rod after installation. Attached Figure Description
[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0021] Figure 1 This is a schematic diagram of the overall structure of a loose soil support structure for geotechnical engineering according to this utility model.
[0022] Figure 2 This is a partially enlarged schematic diagram of point A of a loose soil support structure for geotechnical engineering according to this utility model;
[0023] Figure 3 This is a schematic diagram of a reinforcement mechanism for a loose soil support structure in geotechnical engineering, according to the present invention.
[0024] Figure 4 This is a schematic diagram of the spring distribution structure of a loose soil support structure for geotechnical engineering according to this utility model.
[0025] In the diagram: 1. Casting pipe; 11. First borehole; 12. Foundation; 13. Second borehole; 2. Reinforcing rod; 21. Embedded groove; 22. Rotating shaft; 23. Spring; 24. Support plate; 3. Guide port; 31. Discharge port; 32. Support block. Detailed Implementation
[0026] Please see Figure 1-4 This utility model provides a technical solution: a loose soil support structure for geotechnical engineering, including a casting pipe 1, with multiple sets of casting pipes 1 distributed at the top of a foundation 12. Each set of casting pipes 1 has a first borehole 11 at its bottom. Multiple sets of equidistantly distributed second boreholes 13 are formed on the inclined surface of the foundation 12. A reinforcing rod 2 is inserted into each set of second boreholes 13. A reinforcing mechanism is installed at one end of each reinforcing rod 2, and the reinforcing mechanism includes the reinforcing rod... The second drilled hole 13 is reinforced by an inner groove 21 with two sets of inner grooves 21, a rotating shaft 22 rotatably installed in both sets of inner grooves 21, a stop plate 24 fixedly installed in the middle of both sets of rotating shafts 22, and a spring 23 sleeved on both sides of each set of rotating shafts 22. The spring 23 is fixedly installed on both sides of the inner wall of the inner groove 21 and the side wall of the stop plate 24, respectively. The side wall of each set of stop plates 24 corresponds to the inner wall of the first drilled hole 11, which can support the stop plate 24.
[0027] When concrete mortar is continuously poured from the pouring pipe 1 by the grouting machine, the concrete mortar can be distributed in a plow-like pattern inside the foundation 12 because multiple sets of second boreholes 13 are interconnected with the first borehole 11, thus effectively reinforcing the interior of the foundation 12. At the same time, after multiple sets of reinforcing rods 2 are inserted into the second boreholes 13, and one end of the reinforcing rod 2 is wrapped around the inside of the first borehole 11, the abutment plates 24 on both sides of one end of the reinforcing rod 2 will be opened by the support of the spring 23. When the operator pulls back the reinforcing rod 2, the reinforcing rod 2 will be firmly supported inside the second borehole 13 by the two sets of reinforcing plates, further supporting the inner cavity of the second borehole 13 and preventing loose soil from filling the inner cavity of the second borehole 13 and preventing mortar from being poured in.
[0028] In this technical solution, each set of reinforcing rods 2 has a stop block 32 fixedly installed at both ends of its inner side. The tips of multiple sets of stop blocks 32 correspond to the side walls of each set of stop plates 24, which can support the stop plates 24.
[0029] When the abutment plates 24 on both sides of one end of the reinforcing rod 2 are unfolded by the supporting force of the spring 23, the unfolded abutment plates 24 will be supported by the abutment block 32, supporting the two sets of abutment plates 24 in the vertical direction. This ensures that when the operator pulls back the reinforcing rod 2, the abutment plates 24 distributed on both sides of the reinforcing rod 2 are firmly supported on the inner wall of the first drill hole 11, further improving the stability and firmness of the reinforcing rod 2 after installation.
[0030] In this technical solution, each set of reinforcing rods 2 is hollow inside, each set of reinforcing rods 2 has a guide port 3 on its inner side, and each set of reinforcing rods 2 has a discharge port 31 on its outer side, which can discharge the mortar in the first drill hole 11.
[0031] When the operator uses the grouting machine to continuously pour concrete mortar from the pouring pipe 1, since multiple sets of second boreholes 13 are interconnected with the first borehole 11, a large amount of concrete mortar will be continuously introduced from the guide port 3 on the reinforcing rod 2 and then discharged from the discharge port 31 at the other end of the reinforcing rod 2. Waiting for the concrete mortar to be continuously discharged from the discharge port 31 of a set of reinforcing rods 2 can ensure that the inside of this set of reinforcing rods 2 is filled, and the discharge port 31 is sealed with a cap.
[0032] In this technical solution, each group of first boreholes 11 is vertical, and each group of second boreholes 13 is horizontal. The first boreholes 11 and multiple groups of second boreholes 13 on the same plane are interconnected, which can ensure that the first boreholes 11 and the second boreholes 13 are interconnected.
[0033] As the grouting machine continuously pours concrete mortar from the pouring pipe 1, the concrete mortar can be distributed in a plow-like pattern inside the foundation 12 because multiple sets of second boreholes 13 are interconnected with the first borehole 11, thus effectively reinforcing the interior of the foundation 12.
[0034] In use, multiple sets of equidistant first boreholes 11 are firstly drilled at the top of the foundation 12 using a drilling rig. Then, second boreholes 13, corresponding to the sets of first boreholes 11, are drilled using an infrared level. It is ensured that the multiple sets of second boreholes 13 in the same vertical direction are interconnected with their corresponding first boreholes 11. As the grouting machine continuously pours concrete mortar from the pouring pipe 1, the interconnectedness of the multiple sets of second boreholes 13 and first boreholes 11 allows the concrete mortar to be distributed in a plow-like pattern within the foundation 12, effectively reinforcing the foundation 12. Simultaneously, after multiple reinforcing rods 2 are inserted into the second boreholes 13, and one end of the reinforcing rod 2 is wrapped around the inside of the first borehole 11, the abutments 24 on both sides of one end of the reinforcing rod 2, supported by springs 23, will hold the reinforcing rod 2 in place. When the support plate 24 is opened, the operator pulls back the reinforcing rod 2. The reinforcing rod 2 is firmly supported inside the second borehole 13 by two sets of reinforcing plates, further supporting the inner cavity of the second borehole 13 and preventing loose soil from filling the inner cavity of the second borehole 13 and preventing mortar from being poured in. Each set of reinforcing rod 2 has a support block 32 fixedly installed at both ends of its inner side, and the tips of multiple sets of support blocks 32 correspond to the side walls of each set of support plates 24. When the support plates 24 on both sides of one end of the reinforcing rod 2 are opened by the supporting force of the spring 23, the opened support plate 24 will be supported by the support block 32, supporting the two sets of support plates 24 in the vertical direction. This ensures that when the operator pulls back the reinforcing rod 2, the support plates 24 distributed on both sides of the reinforcing rod 2 are firmly supported on the inner wall of the first borehole 11, further improving the stability and firmness of the reinforcing rod 2 after installation.
Claims
1. A loose earthwork support structure for geotechnical engineering, comprising a cast-in-place pipe (1), characterized in that: The casting pipe (1) is provided in multiple sets, and the multiple sets of casting pipe (1) are distributed on the top of the foundation (12). Each set of casting pipe (1) has a first borehole (11) at the bottom. The foundation (12) has multiple sets of second boreholes (13) distributed at equal intervals. Each set of second boreholes (13) is fitted with a reinforcing rod (2), and a reinforcing mechanism is installed at one end of each set of reinforcing rods (2).
2. The loose earthwork support structure for geotechnical engineering according to claim 1, characterized in that: The reinforcement mechanism includes an inner groove (21) opened on both sides of one end of the reinforcement rod (2), a rotating shaft (22) rotatably installed in both sets of inner grooves (21), a stop plate (24) fixedly installed in the middle of both sets of rotating shafts (22), and a spring (23) sleeved on both sides of each set of rotating shafts (22).
3. The loose earthwork support structure for geotechnical engineering according to claim 2, characterized in that: Each set of springs (23) is fixedly installed on both sides of the inner wall of the groove (21) and the side wall of the abutment plate (24), and the side wall of the abutment plate (24) corresponds to the inner wall of the first drill hole (11).
4. The loose earthwork support structure for geotechnical engineering according to claim 1, characterized in that: The first borehole (11) in each group is vertical, and the second borehole (13) in each group is horizontal. The first borehole (11) and multiple groups of second boreholes (13) on the same plane are interconnected.
5. A loose earthwork support structure for geotechnical engineering according to claim 1, characterized in that: Each set of reinforcing rods (2) is hollow inside, and each set of reinforcing rods (2) has a guide port (3) on its inner side and a discharge port (31) on its outer side.
6. A loose earthwork support structure for geotechnical engineering according to claim 1, characterized in that: Each set of reinforcing rods (2) has a stop block (32) fixedly installed at both ends of its inner side, and the tips of the multiple sets of stop blocks (32) correspond to the side walls of each set of stop plates (24).