Edge protection structure for deep foundation pit construction
By using stainless steel main support and protective plates and combined connecting plates in deep foundation pit construction, the problems of forming accuracy and stability in deep foundation pit construction were solved, and efficient and reliable connection and combination effects were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-13
AI Technical Summary
During deep foundation pit construction, the large side dimensions lead to poor forming accuracy and low fastening efficiency, affecting construction safety and durability. Existing connection methods are difficult to guarantee accuracy and stability.
The main support and protective plate is made of stainless steel and is equipped with a safety groove for avoiding misalignment, a combination connecting plate and a fastening connection hole. Through the positioning structure and fastening structure, multiple components are firmly connected to ensure precise positioning and efficient combination.
It improves the connection strength and precision of deep foundation pit construction, enhances the compatibility with load-bearing components, and improves construction efficiency and convenience.
Smart Images

Figure CN223991608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of deep foundation construction technology, and in particular to a protective structure for the edge of a deep foundation pit. Background Technology
[0002] When constructing deep foundation pits, the large dimensions of the sides make it difficult to ensure the precision of the molding process. This results in relatively poor stability when installing prefabricated components. Furthermore, the precision of the sides affects the overall safety and durability of the construction. Current methods for constructing deep foundation pits involve connecting side panels to structures in different directions using multiple fasteners. However, ensuring the precision of these fasteners is difficult, and the efficiency of fastening is low. This also makes the construction and operation of prefabricated deep foundation structures less convenient. Utility Model Content
[0003] The purpose of this utility model is to provide a protective structure for the edge of a deep foundation pit. It has two sets of interlocking connecting plates in the horizontal direction at the mating position of the edge structure. Through positioning and fastening structures at different positions, it can ensure better connection and more reliable precision of multiple components during construction in different directions. It can replace the existing use of multiple parts and can also make precise limiting fit with load-bearing components, ensuring higher combined strength. It is also more convenient to fit with precast deep foundation structure components, and the overall construction efficiency is higher.
[0004] The technical solution of this utility model is as follows:
[0005] A deep foundation pit construction edge protection structure, characterized in that: it includes a main support protection plate made of stainless steel; the front and rear sides of the main support protection plate are respectively provided with safety grooves that penetrate the outer side and top of the entire structure in the front-rear direction; the lower end of the main support protection plate is provided with a first combined connecting plate integrally formed horizontally to the left; the upper end of the main support protection plate is provided with a second combined connecting plate integrally formed horizontally to the left; the second combined connecting plate is provided with an arc-shaped fitting and limiting connecting groove that opens to the left and penetrates the lower end of the entire structure; the connection position between the first combined connecting plate and the main support protection plate is provided with front-rear distributed installation positioning grooves; the first combined connecting plate is provided with front-rear distributed first fastening connecting holes; the upper end of the second combined connecting plate is provided with front-rear distributed second fastening connecting holes; and the left side of the first combined connecting plate is provided with a fitting stop connecting groove at the connection position with the fitting and limiting connecting groove.
[0006] Furthermore, the two mating limiting connecting grooves in the upper and lower positions have different central axes, and the central axes of the two mating limiting connecting grooves in the upper and lower positions are on the vertical plane at the center position of the main body support protective plate in the front-back direction.
[0007] Furthermore, both the first and second fastening connection holes are rectangular slots, and their length directions are perpendicular to each other.
[0008] Furthermore, the installation positioning groove and the avoidance fitting safety groove intersect in the area projected in the vertical direction.
[0009] The beneficial effects of this utility model are:
[0010] This utility model provides two sets of interlocking connecting plates at the mating positions of the adjacent structure. Through positioning and fastening structures at different positions, it can ensure better connection and more reliable precision of multiple components during construction in different directions. It can replace the existing use of multiple parts and can also make precise limiting fits with load-bearing components, ensuring higher combined strength. It is also more convenient to fit with precast deep foundation structure components, resulting in higher overall construction efficiency. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a front view of the present invention;
[0013] Figure 3 This is a schematic diagram of the left side of this utility model;
[0014] Figure 4 This is a schematic diagram on the right side of the present invention;
[0015] Figure 5 This is a top view of the present invention;
[0016] Figure 6 This is a bottom view of the present invention;
[0017] Figure 7 This is a three-dimensional structural diagram of the present invention in the second direction;
[0018] In the diagram: 1. Main support protective plate; 2. Safety groove for avoidance; 3. First combined connecting plate; 4. Second combined connecting plate; 5. Installation positioning groove; 6. First fastening connection hole; 7. Matching limit connection groove; 8. Second fastening connection hole; 9. Matching stop connection groove. Detailed Implementation
[0019] like Figures 1 to 7 As shown, a deep foundation pit construction edge protection structure includes a main support protection plate 1 made of stainless steel. The main support protection plate 1 has safety grooves 2 on its front and rear sides, extending outwards and upwards in the front-rear direction, allowing it to connect with structures in different front-rear directions. The lower end of the main support protection plate 1 has a first integrated connecting plate 3, horizontally to the left, and the upper end has a second integrated connecting plate 4, also horizontally to the left, enabling it to connect with horizontal structural components in the vertical direction, ensuring more reliable stability during connection. The second integrated connecting plate 4 has an arc-shaped limiting connecting groove 7 with an opening to the left that extends through the lower end, allowing it to fit tightly with the load-bearing structure, ensuring better structural strength and precision at the edge. The connection point between the first integrated connecting plate 3 and the main support protection plate 1 has front-rear distributed installation positioning grooves 5, enabling precise positioning with the bottom structure during connection, ensuring greater convenience and higher precision. The first combined connecting plate 3 is provided with first fastening connection holes 6 distributed front and rear, and the upper end of the second combined connecting plate 4 is provided with second fastening connection holes 8 distributed front and rear, enabling fastening combinations at different positions. The left side of the first combined connecting plate 3, where it connects with the matching limiting connection groove 7, is provided with a matching stop connection groove 9, ensuring more space at this position, allowing for larger-space combination connections during construction, and enabling more comprehensive integration with concrete materials, ensuring stronger load-bearing capacity at the bottom during assembly. By providing two sets of interlocking connecting plates at the edge structure's assembly position, and through positioning and fastening structures at different positions, it ensures better connection stability and more reliable assembly accuracy for multiple components in different directions during construction. It can replace the existing combination of multiple parts, and can also achieve precise limiting fit with load-bearing components, ensuring higher combined strength during assembly, greater convenience when assembling with precast deep foundation structure components, and higher overall construction efficiency.
[0020] Preferably, the two mating limiting connecting grooves 7 in the upper and lower positions have different central axes. The central axes of the two mating limiting connecting grooves 7 in the upper and lower positions are on the vertical plane at the center position of the main body support protective plate 1 in the front-back direction. When mating, the upper and lower positions can form an interlocking force when tightening, which makes the mating position more stable and the mating connection stronger.
[0021] Preferably, the first fastening connection hole 6 and the second fastening connection hole 8 are both rectangular slots, and their length directions are perpendicular to each other. This makes the connection operation more convenient during fastening, avoids some unavoidable deviations caused by tolerances, and ensures greater convenience during fastening.
[0022] Preferably, the installation positioning groove 5 and the avoidance fitting safety groove 2 intersect in the area projected in the vertical direction, which makes the overall structure more stable when fitting.
[0023] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements or substitutions can be made without departing from the principle of this utility model, and these improvements or substitutions should also be considered within the protection scope of this utility model.
Claims
1. A deep foundation pit construction edge protection structure, characterized in that: The utility model relates to a support guard plate, including the main body support guard plate (1) made of stainless steel material, the front and back sides of main body support guard plate (1) are equipped with the safe groove (2) of avoiding cooperation respectively, the safe groove (2) of avoiding cooperation is penetrated to the upper side and the outside of whole front and back direction, the lower end of main body support guard plate (1) is equipped with the first combined connecting plate (3) of integrated direction horizontal left side, the upper end of main body support guard plate (1) is equipped with the second combined connecting plate (4) of integrated direction horizontal left side, the second combined connecting plate (4) is equipped with the circular arc cooperation limiting connecting groove (7) of opening left side and the lower end of whole penetration, the first combined connecting plate (3) and main body support guard plate (1) connection position are equipped with the mounting location cooperation groove (5) of distribution before and after, the first combined connecting plate (3) is equipped with the first fastening connecting hole (6) of distribution before and after, the upper end of second combined connecting plate (4) is equipped with the second fastening connecting hole (8) of distribution before and after, the left side of first combined connecting plate (3) and cooperation limiting connecting groove (7) connection position are equipped with cooperation stop connecting groove (9).
2. The construction of a deep foundation pit edge protection structure according to claim 1, characterized in that: The center axes of the two cooperation limiting connecting grooves (7) in the up-down position are different, and the center axes of the two cooperation limiting connecting grooves (7) in the up-down position are on the vertical plane of the front and back direction center position of the main body support guard plate (1).
3. The construction of a deep foundation pit edge protection structure according to claim 1, characterized in that: The first fastening connecting hole (6) and the second fastening connecting hole (8) are both rectangular slot shapes, and the length directions of the first fastening connecting hole (6) and the second fastening connecting hole (8) are perpendicular to each other.
4. The construction of a deep foundation pit edge protection structure according to claim 1, characterized in that: The mounting location cooperation groove (5) intersects with the area of the up-down direction projection of the safe groove (2) of avoiding cooperation.