A new retaining structure for roads

Abstract

The utility model relates to building structure technical field discloses a novel retaining structure for road, including support stake, prefabricated arched retaining board, reinforcing tendon, support rod, cable connecting ring, cable connecting ring is used for connecting reinforcing tendon, support rod, reinforcing tendon is connected on support stake, and support rod is connected on prefabricated arched retaining board, the utility model designs arched prefabricated arched retaining board, and the earth pressure perpendicular to prefabricated arched retaining board is converted into the pressure to support stake, thereby increasing the retaining efficiency of prefabricated arched retaining board, and the back of prefabricated arched retaining board is simultaneously set into arched and makes the arching effect of the impacted earth body play, effectively reduces the earth pressure of earth body itself, sets up the axial force detector on the support rod, can judge retaining wall deformation stress condition at any time, sends out early warning in time when the axial force is over limit, and timely early warning can further reduce the risk coefficient, avoids the accident occurrence as far as possible.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, specifically, a novel retaining structure for roads. Background Technology

[0002] During urban road construction, due to terrain constraints, it is necessary to excavate existing slopes to expand space. In order to ensure the stability of the excavated slope, it is often necessary to set up retaining structures at the excavated slope location to support the slope and ensure its stability. Commonly used road retaining structures include gravity type, buttress type, pile-slab wall and other structural forms. However, these commonly used structural forms make the most of the strength and weight of the structure itself to support the soil of the slope behind the wall, without making full use of the arching effect of the soil, and lack the early warning function for structural deformation or instability. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of retaining structure for roads, which solves the problems of poor support effect and lack of early warning when the existing support structure is deformed or unstable.

[0004] This utility model is achieved through the following technical solution: a novel retaining structure for roads, comprising a support pile, a precast arched retaining plate, a steel cable, a support rod, and a cable connecting ring. The cable connecting ring is used to connect the steel cable and the support rod. The steel cable is connected to the support pile, and the support rod is connected to the precast arched retaining plate. The two ends of the precast arched retaining plate are supported by one of the support piles.

[0005] To better realize this utility model, the cable connecting ring is further provided with multiple support rods, and the support rods are equipped with axial force detectors to detect the axial force on the support rods.

[0006] To better realize this utility model, the support rods are further provided as follows: there are 3 support rods, the included angle between two adjacent support rods is 45°, the middle support rod is connected to the midpoint of the precast arched retaining plate, and the extension line of the support rod coincides with the center of the precast arched retaining plate.

[0007] To better realize this utility model, the two steel cables on both sides of the cable connecting ring have an included angle of less than 180°.

[0008] To better realize this utility model, the precast arched retaining plate is further provided with arc-shaped engaging surfaces at both ends, and the diameter of the arc-shaped engaging surfaces is the same as the diameter of the supporting pile.

[0009] To better realize this utility model, further, an anchor pile is provided on the support pile, and the anchor pile is perpendicular to the support pile.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0011] (1) This utility model utilizes the principle of arch bridges to design an arched prefabricated arched retaining plate, which converts the soil pressure perpendicular to the prefabricated arched retaining plate into pressure on the supporting piles. Since the compressive strength of concrete structure is far superior to its bending strength, the soil retaining efficiency of the prefabricated arched retaining plate is increased. At the same time, the back of the prefabricated arched retaining plate is set in an arch shape so that the arching effect of the impacting soil can be brought into play, effectively reducing the soil pressure of the soil itself.

[0012] (2) In this utility model, steel cables are set between the support piles and the steel cables are connected to the precast arch retaining plate through the support rod. On the one hand, the steel cables can effectively enhance the stability of the support piles, and on the other hand, the support rod can pre-force the precast arch retaining plate in advance to improve the strength of the precast arch retaining plate.

[0013] (3) The present invention sets an axial force detector on the support rod, which can judge the deformation and stress of the retaining wall at any time. When the axial force exceeds the limit, an early warning is issued in time. The timely warning can further reduce the risk factor and avoid accidents as much as possible. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of this utility model.

[0015] Figure 2 This is a frontal view of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of this utility model from the right view angle.

[0017] Wherein: 101-support pile; 102-precast arched retaining plate; 103-steel cable; 104-support rod; 105-axial force detector; 106-anchor pile; 107-cable connecting ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0020] Example 1:

[0021] This embodiment provides a novel retaining structure for roads, specifically as follows: Figures 1-3 As shown, it includes a support pile 101, a precast arched retaining plate 102, a steel cable 103, a support rod 104, and a cable connecting ring 107. The cable connecting ring 107 is used to connect the steel cable 103 and the support rod 104. The steel cable 103 is connected to the support pile 101, and the support rod 104 is connected to the precast arched retaining plate 102. The precast arched retaining plate 102 is supported by one of the support piles 101 at each end.

[0022] During construction, multiple rows of support piles 101 are first poured. Then, a precast arched retaining plate 102 is placed between two support piles 101, so that both ends of the precast arched retaining plate 102 are supported by the support piles 101. Next, a support rod 104 is installed on the precast arched retaining plate 102, and a cable connecting ring 107 is installed on the other end of the support rod 104. Then, a steel cable 103 is connected to each side of the cable connecting ring 107. Finally, the steel cables 103 are pulled and installed on the support piles 101 on the same side, thus completing the installation.

[0023] In a set of retaining structures, when soil impacts the precast arched retaining plate 102, its arched design significantly increases its compressive and impact resistance, allowing it to transmit the force to the two supporting piles 101 and the supporting rod 104. Simultaneously, the steel cable 103, supported by the supporting rod 104, further prevents deformation of the precast arched retaining plate 102. Because the steel cable 103, under stress, pulls the two supporting piles 101 closer together, it also partially offsets the force exerted by the precast arched retaining plate 102 on the two supporting piles 101, causing them to move away from each other.

[0024] In adjacent retaining structures, two adjacent precast arched retaining plates 102 will share a support pile 101. When the two precast arched retaining plates 102 are under stress, the lateral forces transmitted to the same support pile 101 will cancel each other out. At this time, the support pile 101 will only be subjected to the resultant force in the direction of soil impact.

[0025] By utilizing the principles of arch bridges, a precast arched retaining wall 102 is designed to convert the earth pressure perpendicular to the precast arched retaining wall 102 into pressure on the supporting piles 101. Since the compressive strength of concrete structures is far superior to their bending strength, the retaining capacity of the precast arched retaining wall 102 is increased. Simultaneously, the arched back of the precast arched retaining wall 102 allows the arching effect of the impacting soil to be fully utilized, effectively reducing the earth pressure on the soil itself. Furthermore, steel cables 103 are installed between the supporting piles 101 and connected to the precast arched retaining wall 102 via supporting rods 104. On one hand, the steel cables 103 effectively enhance the stability of the supporting piles 101; on the other hand, the supporting rods 104 pre-stress the precast arched retaining wall 102, increasing its strength.

[0026] Example 2:

[0027] This embodiment further extends the above embodiment, specifically as follows: Figures 1-3 As shown, multiple support rods 104 are connected to the cable connecting ring 107. An axial force detector 105 is installed on each support rod 104 to detect the axial force on the support rod 104. By using the axial force detector 105 on the support rod 104, the specific stress condition of the precast arched retaining wall 102 can be monitored in real time. When the axial force exceeds the limit, the axial force detector 105 will issue an alarm in a timely manner. Timely warning can further reduce the risk factor and minimize the possibility of accidents.

[0028] Furthermore, there are three support rods 104, with an included angle of 45° between any two adjacent support rods 104. The middle support rod 104 is connected to the midpoint of the precast arched retaining plate 102, and the extension line of this support rod 104 coincides with the center of the precast arched retaining plate 102. The support rods 104 on both sides are also used to improve the strength of the precast arched retaining plate 102, but the forces of the two will partially cancel each other out; finally, the force of the soil impact direction of the cable connecting ring 107 is used only to ensure that the steel cables 103 and support piles 101 on both sides are subjected to uniform force.

[0029] Furthermore, the two reinforcing cables 103 on both sides of the cable connecting ring 107 have an included angle of less than 180°. Typically, 170°±5° is chosen to provide tensile compensation for the reinforcing cable 103 line group. When soil impacts the precast arched retaining plate 102, the support rod 104 exerts a force on the reinforcing cable 103, causing the included angle to decrease, while the precast arched retaining plate 102 exerts a force on the support pile 101, causing the included angle of the reinforcing cable 103 to increase. Therefore, the reinforcing cable 103 itself will experience tensile stress. If the two reinforcing cables 103 are arranged collinearly, the risk of damage to the reinforcing cable 103 will increase.

[0030] Furthermore, the precast arched retaining plate 102 has arc-shaped engaging surfaces at both ends, the diameter of which is the same as the diameter of the supporting pile 101. Utilizing these arc-shaped engaging surfaces, the precast arched retaining plate 102 directly abuts against the wall of the supporting pile 101, eliminating the need for special installation methods, thus accelerating construction progress and making the process convenient, fast, and efficient.

[0031] Furthermore, an anchor pile 106 is provided on the support pile 101, and the anchor pile 106 is perpendicular to the support pile 101. By installing the anchor pile 106 in the foundation, it provides support force to the support pile 101; when the precast arched retaining plate 102 is impacted by soil, it exerts a force on the support pile 101 away from the soil; at this time, the support of the anchor pile 106 will balance this force, thereby improving the support strength of the support pile 101.

[0032] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A novel retaining structure for roads, characterized in that: The structure includes a support pile (101), a precast arched retaining plate (102), a steel cable (103), a support rod (104), and a cable connecting ring (107). The cable connecting ring (107) is used to connect the steel cable (103) and the support rod (104). The steel cable (103) is connected to the support pile (101), and the support rod (104) is connected to the precast arched retaining plate (102). The precast arched retaining plate (102) is supported by one of the support piles (101) at each end.

2. The novel retaining structure for roads according to claim 1, characterized in that: Multiple support rods (104) are connected to the cable connecting ring (107), and an axial force detector (105) is provided on the support rod (104) to detect the axial force of the support rod (104).

3. A novel retaining structure for roads according to claim 2, characterized in that: There are 3 support rods (104), and the included angle between two adjacent support rods (104) is 45°. The middle support rod (104) is connected to the midpoint of the precast arch retaining plate (102), and the extension line of the support rod (104) coincides with the center of the precast arch retaining plate (102).

4. A novel retaining structure for roads according to any one of claims 1-3, characterized in that: The two steel cables (103) on both sides of the cable connecting ring (107) have an included angle of less than 180°.

5. A novel retaining structure for roads according to any one of claims 1-3, characterized in that: The precast arched retaining plate (102) has arc-shaped locking surfaces at both ends, and the diameter of the arc-shaped locking surfaces is the same as the diameter of the supporting pile (101).

6. A novel retaining structure for roads according to any one of claims 1-3, characterized in that: Anchor piles (106) are provided on the support pile (101), and the anchor piles (106) are perpendicular to the support piles (101).

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