A trench excavation sheet-pile support structure
Patent Information
- Application Number
- CN202522078759.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-26
AI Technical Summary
现有支护结构多采用固定尺寸的支撑构件，难以适应不同宽度和深度的沟槽开挖需求，在狭窄巷道内，施工空间受限，大型设备难以进入，导致支护构件安装困难，且对在承受不均匀土压力时，容易发生局部失稳或整体偏移，特别是支护结构与槽顶土壤的咬合不牢固，存在较大的安全隐患，因此，需要设计一种沟槽开挖板柱式支护结构来解决上述问题
1、本实用新型中，通过竖向调节件设有调节槽，连接件设有多组插孔二，与横向支撑调节件的伸缩结构相配合，共同构成了一个在竖向和横向上均可灵活调节的支护体系，这使得该结构能适应不同规格的沟槽，大大降低了对狭窄施工空间和安装精度的要求。
Smart Images
Figure CN224902199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foundation pit construction technology, and in particular to a trench excavation slab-column support structure. Background Technology
[0002] In urban construction, underground pipeline laying, and mine tunnel maintenance projects, trench excavation is often required in narrow spaces. The soil on the trench walls is easily disturbed and may collapse. Reliable support structures must be used to ensure construction safety. Currently, commonly used support methods include traditional steel sheet pile support, timber support support, or simple retaining wall support. Existing support structures mostly use fixed-size support components, which are difficult to adapt to the needs of trench excavation with different widths and depths. In narrow tunnels, the construction space is limited, and large equipment is difficult to enter, which makes the installation of support components difficult. Moreover, when subjected to uneven earth pressure, local instability or overall displacement is prone to occur. In particular, the interlocking between the support structure and the soil at the top of the trench is not firm, which poses a significant safety hazard. Therefore, it is necessary to design a slab-column support structure for trench excavation to solve the above problems. Utility Model Content
[0003] The main purpose of this utility model is to provide a trench excavation slab-column support structure, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A trench excavation slab-column support structure includes a trench excavated in a narrow tunnel and quincunx-shaped fixed rods. Vertical adjusting members are installed on both the left and right walls of the trench. Connecting members are fixedly installed within each of the two vertical adjusting members via the quincunx-shaped fixed rods. Connecting plates are fixedly connected to the right ends of both connecting members and the two vertical adjusting members. Lateral support adjusting members are installed on the right ends of the two connecting plates, the left ends of the right-side vertical adjusting members and the right-side connecting members. Four lateral support adjusting members are provided and symmetrically distributed in pairs. The vertical adjustment component includes a hinge and a left vertical plate and a right vertical plate. A through-hole is formed on the lower part of the opposite surfaces of both the left and right vertical plates. A reinforcing plate is movably mounted on the upper front and upper rear parts of both the left and right vertical plates via the hinge. Multiple anti-slip grooves are formed at the lower end of each reinforcing plate. Through-type adjustment grooves are formed at the lower, front, and rear ends of both the left and right vertical plates. The left and right vertical plates are respectively tightly attached to the left and right walls of the groove. The anti-slip grooves at the lower end of the reinforcing plate are all V-shaped, and the groove depth is 5cm.
[0005] Preferably, the lateral support adjustment component includes a lateral cylinder with an elongated slot on its surface. A lateral support column is movably connected to the right end of the lateral cylinder. A through positioning hole is formed on the surface of the lateral support column and on the right side of the lower cylinder wall of the lateral cylinder. The lateral cylinder has one positioning hole, while the lateral support column has multiple positioning holes. A positioning rod is inserted into the surface of the lateral support column, and a fixing lock sleeve is fitted onto the lower part of the outer surface of the positioning rod. The lateral cylinder is fixedly connected to the front right end and the rear right end of the connecting plate.
[0006] Preferably, the connector includes a left support plate and a right support plate. The opposite surfaces of the left and right support plates have multiple through holes 2. The left and right support plates are respectively inserted into holes 1 and holes 2 in sequence by plum blossom-shaped fixing rods and fixed in the adjustment groove.
[0007] Preferably, the positioning rod has a cylindrical rod-shaped structure, and the diameter of the positioning rod is adapted to the diameter of the positioning hole. After the positioning rod is inserted into the positioning hole, the lower end of the positioning rod is locked and fixed by a fixing sleeve.
[0008] Preferably, both the left support plate and the right support plate have an I-shaped plate structure.
[0009] Preferably, the plum blossom-shaped fixing rod has a plum blossom-shaped cross-section rod structure, and the plum blossom-shaped fixing rod is horizontally arranged along the width direction of the groove. Two plum blossom-shaped fixing rods are provided at the connection position of each vertical adjustment component and connector.
[0010] Preferably, the reinforcing plate can rotate around an axis via a hinge, with a rotation angle range of 0°-180°. When the reinforcing plate is unfolded to a perpendicular angle to the vertical plate, the anti-slip groove at the lower end of the reinforcing plate is tightly engaged with the soil at the top of the trench.
[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, the vertical adjustment component is provided with an adjustment groove, and the connecting component is provided with multiple sets of insertion holes. Together with the telescopic structure of the horizontal support adjustment component, they form a support system that can be flexibly adjusted in both vertical and horizontal directions. This allows the structure to adapt to trenches of different specifications and greatly reduces the requirements for narrow construction space and installation accuracy.
[0012] 2. In this utility model, the vertical adjustment component and the connecting component are rigidly connected through a plum blossom-shaped fixing rod, and the reinforcing plate with anti-slip grooves is tightly engaged with the soil at the top of the trench, forming an integrated stable support system from the bottom of the trench to the top of the trench and from the left side to the right side. This design greatly improves the integrity and stability of the structure, can effectively resist lateral earth pressure, prevent collapse, and significantly improve construction safety. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a trench excavation slab-column support structure according to the present invention. Figure 2 This is a schematic diagram of the vertical adjustment component of a trench excavation slab-column support structure according to the present invention. Figure 3 This is a schematic diagram of the transverse support adjustment component of a trench excavation slab-column support structure according to the present invention. Figure 4 This is a schematic diagram of the combined connection structure of the transverse support adjustment component and the connecting component of the trench excavation slab column support structure of this utility model; Figure 5 This is a detailed enlarged structural diagram of section A of a trench excavation slab-column support structure according to this utility model.
[0014] In the diagram: 1. Groove; 2. Vertical adjustment component; 3. Horizontal support adjustment component; 4. Connecting plate; 5. Connector; 6. Plum blossom-shaped fixing rod; 21. Right vertical plate; 22. Left vertical plate; 23. Reinforcing plate; 24. Hinge component; 25. Anti-slip toothed groove; 26. Adjustment groove; 27. Insertion hole one; 31. Horizontal cylinder; 32. Long slot; 33. Horizontal support column; 34. Fixing lock sleeve; 35. Positioning rod; 36. Positioning hole; 51. Right support plate; 52. Insertion hole two; 53. Left support plate. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] Please see Figure 1-5 This utility model provides a technical solution: A type of trench excavation slab-column support structure, such as Figure 1 As shown, the trench 1, formed by excavation in a narrow alley, and the plum blossom-shaped fixing rods 6 are included. Vertical adjustment components 2 are installed on the left and right walls of the trench 1. Connecting components 5 are fixedly installed in the two vertical adjustment components 2 through the plum blossom-shaped fixing rods 6. Connecting plates 4 are fixedly connected to the right ends of the two connecting components 5 and the two vertical adjustment components 2. The right ends of the two connecting plates 4, together with the left ends of the right vertical adjustment component 2 and the right connecting component 5, are installed with horizontal support adjustment components 3. There are four horizontal support adjustment components 3, which are symmetrically distributed in pairs. The plum blossom-shaped fixing rods 6 have a plum blossom-shaped cross-section rod structure and are horizontally arranged along the width direction of the trench 1. Two plum blossom-shaped fixing rods 6 are provided at the connection position between each vertical adjustment component 2 and the connecting component 5.
[0019] Through the above scheme: This trench excavation slab-column support structure installs vertical adjustment components 2 on the left and right walls of the trench 1 formed by excavation in a narrow tunnel, and uses two plum blossom-shaped fixed plug rods 6 with plum blossom-shaped cross sections to achieve rigid connection through the plug hole 27 horizontally along the width direction of the trench 1 and the plug hole 52 of the connector 5. The connecting plates on both sides connect the vertical adjustment components 2 and the connector 5 into a whole, and provide adjustable lateral support force through four horizontal support adjustment components 3 distributed symmetrically in pairs. Through the synergistic effect of the vertical adjustment components 2 and the horizontal support adjustment components 3, a stable spatial support system is formed. Its function is to effectively resist the lateral earth pressure of the trench, prevent the trench wall from collapsing, and effectively ensure the construction safety of trench excavation in narrow tunnels.
[0020] Please see Figure 1 , Figure 2 and Figure 3The vertical adjustment component 2 includes a hinge 24 and a left vertical plate 22 and a right vertical plate 21. The reinforcing plate 23 can rotate around its axis via the hinge 24, with a rotation angle range of 0°-180°. When the reinforcing plate 23 is extended to a perpendicular angle to the vertical plate, the anti-slip groove 25 at the lower end of the reinforcing plate 23 tightly engages with the top soil of the trench 1. Both the left vertical plate 22 and the right vertical plate 21 have through-holes 27 at their lower surfaces. The upper front and upper rear of the left vertical plate 22 and the right vertical plate 21 are movably mounted with the reinforcing plate 23 via the hinge 24. The anti-slip grooves 25 at the lower end of the reinforcing plate 23 are V-shaped, with a groove depth of 5cm. Multiple anti-slip grooves 25 are provided at the lower end of the reinforcing plate 23. The left vertical plate 22 and the right vertical plate 21... The lower end, front end and rear end are all provided with through adjustment grooves 26. The left vertical plate 22 and the right vertical plate 21 are respectively attached to the left and right groove walls of the groove 1. The transverse support adjustment component 3 includes a transverse cylinder 31. The surface of the transverse cylinder 31 is provided with a long slot 32. The right end of the transverse cylinder 31 is movably connected to a transverse support column 33. The surface of the transverse support column 33 and the right side of the lower cylinder wall of the transverse cylinder 31 are both provided with through positioning holes 36. The transverse cylinder 31 is provided with one positioning hole 36. The surface of the transverse support column 33 is provided with multiple positioning holes 36. The surface of the transverse support column 33 is inserted with a positioning rod 35. The lower part of the outer surface of the positioning rod 35 is fitted with a fixing lock sleeve 34. The transverse cylinder 31 is respectively fixedly connected to the front right end and the rear right end of the connecting plate 4.
[0021] Through the above scheme: This trench excavation slab-column support structure is installed by tightly attaching the left vertical plate 22 and right vertical plate 21 of the vertical adjustment component 2 to the left and right walls of the trench 1, and using the hinge component 24 to rotate and unfold the reinforcing plate 23 to be perpendicular to the vertical plate, so that the V-shaped anti-slip tooth groove 25 with a depth of 5cm at its lower end tightly engages with the soil at the top of the trench 1 to achieve initial vertical stability. The insertion hole 27 opened at the bottom of the vertical plate and the connector 5 are connected and fixed in the adjustment groove 26 through the plum blossom-shaped fixing rod 6 to form the main load-bearing structure. At the same time, through the telescopic adjustment of the horizontal cylinder 31 and the horizontal support column 33 of the horizontal support adjustment component 3, the positioning rod 35 is inserted into the corresponding positioning hole 36 and locked with the fixing lock sleeve 34 to achieve precise control of the horizontal support length, effectively resist the lateral pressure of the soil, prevent the trench wall from deforming and collapsing, adapt to different trench sizes, and are convenient, safe and reliable to install.
[0022] Please see Figure 4 and Figure 5 The connector 5 includes a left support plate 53 and a right support plate 51. The opposite surfaces of the left support plate 53 and the right support plate 51 have multiple through holes 52. The left support plate 53 and the right support plate 51 are respectively inserted into the first hole 27 and the second hole 52 through the plum blossom-shaped fixing rods 6 and fixed in the adjustment groove 26. Both the left support plate 53 and the right support plate 51 have an I-shaped plate structure.
[0023] Through the above scheme: the connector 5 of the trench excavation slab column support structure adopts an I-shaped plate structure with a left support plate 53 and a right support plate 51. The multiple insertion holes 52 on their opposite sides correspond to the insertion holes 27 of the vertical adjustment component 2. The plum blossom-shaped fixing rods 6 are inserted through and fixed in the adjustment groove 26 to form a rigid connection. The I-shaped structure enhances the bending stiffness and load-bearing capacity of the connector. The multi-hole design enables height-adjustable connection and fixation. Its function is to effectively transfer and distribute vertical and horizontal loads and enhance the stability of the overall structure.
[0024] It should be noted that this utility model is a trench excavation plate-column support structure. After excavating a trench 1 in a narrow tunnel, the left vertical plate 22 and right vertical plate 21 of the vertical adjustment component 2 are respectively tightly attached to the left and right walls of the trench 1. The reinforcing plate 23 is rotated and unfolded to be perpendicular to the vertical plate through the hinge component 24, so that the V-shaped anti-slip groove 25 at its lower end is tightly engaged with the soil at the bottom of the trench 1 to achieve vertical stability. Then, the left support plate 53 and right support plate 51 of the connector 5 are passed through the first insertion hole 27 on the vertical plate and the second insertion hole 52 on the connector 5 through two plum blossom-shaped fixing rods 6 and fixed to the adjustment component. Within the groove 26, a vertical support system is formed on both sides. The connecting plates 4 on both sides connect the vertical adjustment component 2 and the connecting component 5 into a whole, and provide lateral support through the lateral support adjustment component 3. By extending the lateral support column 33 from the lateral cylinder 31, the positioning rod 35 is inserted into the corresponding positioning hole 36 and locked with the fixing sleeve 34, thereby adjusting and locking the length of the lateral support. Finally, through the combined action of the four lateral support adjustment components 3 distributed symmetrically in pairs, a stable spatial support structure is formed, which effectively resists the lateral earth pressure of the trench and ensures the safety and stability of trench excavation in narrow tunnels.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A trench excavation slab-column support structure, characterized in that: The system includes a trench (1) excavated in a narrow alley and a plum blossom-shaped fixing rod (6). Vertical adjustment components (2) are installed on the left and right walls of the trench (1). Connecting components (5) are fixedly installed in the two vertical adjustment components (2) through the plum blossom-shaped fixing rod (6). Connecting plates (4) are fixedly connected to the right ends of the two connecting components (5) and the two vertical adjustment components (2). Horizontal support adjustment components (3) are installed together on the right ends of the two connecting plates (4) and the left ends of the vertical adjustment components (2) on the right side and the connecting components (5) on the right side. There are four horizontal support adjustment components (3) and they are symmetrically distributed in pairs. The vertical adjustment component (2) includes a hinge component (24) and a left vertical plate (22) and a right vertical plate (21). The lower part of the opposite surfaces of the left vertical plate (22) and the right vertical plate (21) are provided with through holes (27). The upper front and upper rear parts of the left vertical plate (22) and the right vertical plate (21) are movably installed with reinforcing plates (23) through the hinge component (24). The lower end of the reinforcing plate (23) is provided with multiple anti-slip grooves (25). The lower end, front end and rear end of the left vertical plate (22) and the right vertical plate (21) are provided with through adjustment grooves (26). The left vertical plate (22) and the right vertical plate (21) are respectively tightly attached to the left and right groove walls of the groove (1). The anti-slip grooves (25) at the lower end of the reinforcing plate (23) are all V-shaped, and the groove depth of the anti-slip grooves (25) is 5cm.
2. The trench excavation slab-column support structure according to claim 1, characterized in that: The transverse support adjustment component (3) includes a transverse cylinder (31), the surface of which has a long slot (32), and the right end of which is movably connected to a transverse support column (33). The surface of the transverse support column (33) and the right side of the lower cylinder wall of the transverse cylinder (31) both have through positioning holes (36). The transverse cylinder (31) has one positioning hole (36), and the surface of the transverse support column (33) has multiple positioning holes (36). A positioning rod (35) is inserted into the surface of the transverse support column (33), and a fixing lock sleeve (34) is fitted onto the lower part of the outer surface of the positioning rod (35). The transverse cylinder (31) is fixedly connected to the front right end and the rear right end of the connecting plate (4).
3. The trench excavation slab-column support structure according to claim 1, characterized in that: The connector (5) includes a left support plate (53) and a right support plate (51). The opposite surfaces of the left support plate (53) and the right support plate (51) have multiple through holes (52). The left support plate (53) and the right support plate (51) are respectively inserted into the first hole (27) and the second hole (52) through the plum blossom-shaped fixing rod (6) and fixed in the adjustment groove (26).
4. The trench excavation slab-column support structure according to claim 2, characterized in that: The positioning rod (35) has a cylindrical rod structure, and the diameter of the positioning rod (35) is adapted to the diameter of the positioning hole (36). After the positioning rod (35) is inserted into the positioning hole (36), the lower end of the positioning rod (35) is locked and fixed by the fixing sleeve (34).
5. A trench excavation slab-column support structure according to claim 3, characterized in that: Both the left support plate (53) and the right support plate (51) have an I-shaped plate structure.
6. The trench excavation slab-column support structure according to claim 1, characterized in that: The plum blossom-shaped fixing rod (6) has a plum blossom-shaped cross-section rod structure, and the plum blossom-shaped fixing rod (6) is horizontally arranged along the width direction of the groove (1). Two plum blossom-shaped fixing rods (6) are provided at the connection positions of each vertical adjustment member (2) and the connecting member (5).
7. The trench excavation slab-column support structure according to claim 1, characterized in that: The reinforcing plate (23) can rotate around the axis via the hinge (24), with a rotation angle range of 0°-180°. When the reinforcing plate (23) is unfolded to a perpendicular angle to the vertical plate, the anti-slip groove (25) at the lower end of the reinforcing plate (23) is tightly engaged with the top soil of the trench (1).