Subway tunnel close-distance side-penetrating bridge pile foundation construction device

Abstract

The invention relates to the technical field of tunnel construction, and particularly discloses a subway tunnel close-distance side-penetrating bridge pile foundation construction device which comprises a reinforcing pipe, the reinforcing pipe is arranged between a subway tunnel and a bridge pile foundation, a vertical reinforcing pile is arranged on the other side of the subway tunnel, a reinforcing piece is arranged in the subway tunnel, one end of the reinforcing piece is connected with the reinforcing pipe, and the other end of the reinforcing piece is connected with the bridge pile foundation. The other end of the reinforcing piece is connected with the vertical reinforcing pile, the reinforcing pipe is also connected with the vertical reinforcing pile, and the reinforcing pipe, the reinforcing piece and the vertical reinforcing pile form a closed-loop structure, so that a rock-soil layer between the subway tunnel and the bridge pile foundation is reinforced. According to the subway tunnel close-distance side-penetrating bridge pile foundation construction device, the reinforcing pipes, the reinforcing pieces and the vertical reinforcing piles form a closed-loop structure, so that a rock-soil layer between a subway tunnel and a bridge pile foundation is reinforced, the deformation amount of a semicircular plate is monitored, and when the deformation amount of the semicircular plate exceeds a theoretical value, the pile foundation of the subway tunnel close-distance side-penetrating bridge pile foundation is constructed. And it is proved that the rock-soil layer between the bridge pile foundations is loosened and needs to be reinforced again.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a subway tunnel close-range side-penetrating bridge pile foundation construction device. Background Art

[0002] Since the utilization rate of ground space is too high, the underground space is utilized to solve the problem of building an underground transportation system to alleviate urban traffic congestion. Then, the order of urban planning is from the ground to the underground. In addition, deep foundation piles are a common foundation form for modern high-rise buildings, viaducts, and river bridges, so it is inevitable that the newly built subway tunnel and the existing bridge pile foundation will conflict with each other. In the prior art, when the subway tunnel passes through the bridge pile foundation at a close distance, in order to protect the existing bridge pile foundation and prevent the tunnel from affecting the existing bridge pile foundation, the prior art is to drive anchor rods between the tunnel and the existing bridge pile foundation for reinforcement, thereby improving the strength of the rock and soil at the edge of the bridge pile foundation. However, this method has certain disadvantages, that is, during the operation of the tunnel, when vehicles such as cars pass through, vibration forces will inevitably be generated around the tunnel. During the long-term operation of the tunnel, the rock and soil between the reinforced tunnel and the existing bridge pile foundation may loosen again. At this time, there is no means of monitoring it, so there is a certain risk. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a subway tunnel close-range side-penetrating bridge pile foundation construction device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A construction device for a subway tunnel that crosses a bridge pile foundation at close range comprises a reinforcement pipe, which is arranged between the subway tunnel and the bridge pile foundation, a vertical reinforcement pile is arranged on the other side of the subway tunnel, a reinforcement piece is arranged in the subway tunnel, one end of the reinforcement piece is connected to the reinforcement pipe, and the other end of the reinforcement piece is connected to the vertical reinforcement pile, the reinforcement pipe is also connected to the vertical reinforcement pile, and the reinforcement pipe, the reinforcement piece and the vertical reinforcement pile form a closed loop structure, thereby reinforcing the rock and soil layer between the subway tunnel and the bridge pile foundation.

[0006] Preferably, the reinforcement pipe includes a "U"-shaped segment, both ends of the "U"-shaped segment are integrally connected to the arc segment, one end of each arc segment is integrally connected to the straight segment, the "U"-shaped segment is arranged between the subway tunnel and the bridge pile foundation, the arc segment extends toward the top of the subway tunnel, and the straight segment is arranged at the top of the subway tunnel and extends toward the vertical reinforcement piles.

[0007] Preferably, the reinforcement member comprises a semicircular plate, connecting rods are respectively arranged at both ends of the semicircular plate, and the two connecting rods respectively connect the reinforcement pipe and the vertical reinforcement pile.

[0008] Preferably, the connecting rod is a cross-arranged scissor rod, the scissor rod is arranged horizontally, the reinforcement tube passes through the scissor part at one end of the scissor rod, and the semicircular plate includes two arc plates hinged to each other, and a displacement sensor is installed between the two arc plates.

[0009] Preferably, the connecting rods are cross-arranged scissor rods, the scissor rods are arranged vertically, the reinforcement tube passes through the scissor part at one end of the scissor rods, and the scissor part at the other end of the scissor rods is equipped with a displacement sensor.

[0010] Preferably, a clearance groove is provided at one end of the connecting rod, the reinforcement pipe passes through the clearance groove, and a strain sensor is installed on one side of the semicircular plate.

[0011] Beneficial effects of the present invention: The reinforcement pipe, reinforcement piece and vertical reinforcement pile of the subway tunnel close-range side-crossing bridge pile foundation construction device provided by the present invention form a closed-loop structure, thereby reinforcing the rock and soil layer between the subway tunnel and the bridge pile foundation, monitoring the deformation of the semicircular plate, and when the deformation of the semicircular plate exceeds the theoretical value, it proves that the rock and soil layer between the bridge pile foundation is loose and needs to be reinforced again. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a working diagram of a subway tunnel passing through a bridge pile foundation at a close distance provided by the present invention;

[0013] Figure 2 A schematic diagram of the basic structure of the present invention;

[0014] Figure 3 is a basic structural diagram of Embodiment 1 of the present invention;

[0015] Figure 4 is a schematic diagram of the basic structure of Embodiment 2 of the present invention;

[0016] Figure 5 is a schematic diagram of the basic structure of Embodiment 3 of the present invention;

[0017] Figure 6 It is a schematic diagram of the structure of the reinforcement pipe. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Example 1

[0020] like Figure 1-5As shown, a construction device for a subway tunnel passing close to a bridge pile foundation in this embodiment includes a reinforcement pipe 1, which is arranged between a subway tunnel 300 and a bridge pile foundation 100. The reinforcement pipe 1 includes a "U"-shaped segment 11, both ends of the "U"-shaped segment 11 are integrally connected to an arc segment 12, and one end of each arc segment 12 is integrally connected to a straight segment 13. The "U"-shaped segment 11 is arranged between the subway tunnel 300 and the bridge pile foundation 100, the arc segment 12 extends toward the top of the subway tunnel 300, and the straight segment 13 is arranged at the top of the subway tunnel 300 and extends toward the vertical reinforcement pile 2.

[0021] Vertical reinforcement piles 2 are arranged on both sides of the subway tunnel 300, and a reinforcement member 3 is arranged inside the subway tunnel 300. The reinforcement member 3 includes a semicircular plate 32, and connecting rods 31 are respectively arranged at both ends of the semicircular plate 32. The two connecting rods 31 respectively connect the reinforcement pipe 1 and the vertical reinforcement pile 2. The reinforcement pipe 1 is also connected to the vertical reinforcement pile 2. The reinforcement pipe 1, the reinforcement member 3 and the vertical reinforcement pile 2 form a closed loop structure, so as to reinforce the rock and soil layer 200 between the subway tunnel 300 and the bridge pile foundation 100.

[0022] Example 2

[0023] On the basis of Example 1, the connecting rod 31 is a cross-arranged scissor rod, the scissor rod is arranged horizontally, the reinforcement pipe 1 passes through the scissor part at one end of the scissor rod, and the semicircular plate 32 includes two mutually hinged arc plates 321, and a displacement sensor 322 is installed between the two arc plates 321. In this Example 2, the reinforcement pipe 1, the reinforcement member 3 and the vertical reinforcement pile 2 form a closed loop structure to reinforce the rock and soil layer 200 between the subway tunnel 300 and the bridge pile foundation 100. In the later tunnel operation process, if the rock and soil layer 200 between the subway tunnel 300 and the bridge pile foundation 100 is loose, the arc plate 321 in the tunnel will rotate, and the arc plate 321 is monitored by the displacement sensor 322. When the deformation of the arc plate 321 exceeds the theoretical value, it proves that the rock and soil layer 200 between the bridge pile foundation 100 is loose and needs to be reinforced again.

[0024] Example 2

[0025] On the basis of Example 1, the connecting rod 31 is a cross-arranged scissor rod, the scissor rod is arranged vertically, the reinforcement pipe 1 passes through the scissor part at one end of the scissor rod, and the scissor part at the other end of the scissor rod is equipped with a displacement sensor 322. The deformation of the connecting rod 31 is detected by the displacement sensor 322. When the deformation of the connecting rod 31 exceeds the theoretical value, it proves that the rock and soil layer 200 between the bridge pile foundation 100 is loose and needs to be reinforced again.

[0026] Example 3

[0027] On the basis of Example 1, a clearance groove is set at one end of the connecting rod 31, and the reinforcement pipe 1 passes through the clearance groove, and a strain sensor is installed on one side of the semicircular plate 32. The deformation of the semicircular plate 32 is monitored by the strain sensor. When the deformation of the semicircular plate 32 exceeds the theoretical value, it proves that the rock and soil layer 200 between the bridge pile foundation 100 is loose and needs to be reinforced again.

Claims

1. A construction device for a subway tunnel close-range side-through bridge pile foundation, characterized in that: The invention comprises a reinforcement pipe (1), wherein the reinforcement pipe (1) is arranged between the subway tunnel (300) and the bridge pile foundation (100), a vertical reinforcement pile (2) is arranged on the other side of the subway tunnel (300), a reinforcement member (3) is arranged in the subway tunnel (300), one end of the reinforcement member (3) is connected to the reinforcement pipe (1), the other end of the reinforcement member (3) is connected to the vertical reinforcement pile (2), the reinforcement pipe (1) is also connected to the vertical reinforcement pile (2), and the reinforcement pipe (1), the reinforcement member (3) and the vertical reinforcement pile (2) form a closed loop structure, thereby reinforcing the rock and soil layer (200) between the subway tunnel (300) and the bridge pile foundation (100).

2. A subway tunnel close-range side-through bridge pile foundation construction device according to claim 1, characterized in that: The reinforcement pipe (1) comprises a U-shaped section (11), both ends of the U-shaped section (11) are integrally connected to an arc section (12), one end of each of the arc sections (12) is integrally connected to a straight section (13), the U-shaped section (11) is arranged between the subway tunnel (300) and the bridge pile foundation (100), the arc section (12) extends toward the top of the subway tunnel (300), and the straight section (13) is arranged at the top of the subway tunnel (300) and extends toward the vertical reinforcement pile (2).

3. A subway tunnel close-range side-through bridge pile foundation construction device according to claim 1 or 2, characterized in that: The reinforcing member (3) comprises a semicircular plate (32), and connecting rods (31) are respectively arranged at both ends of the semicircular plate (32), and the two connecting rods (31) respectively connect the reinforcing pipe (1) and the vertical reinforcing pile (2).

4. A subway tunnel close-range side-through bridge pile foundation construction device according to claim 3, characterized in that: The connecting rod (31) is a cross-arranged scissor rod, the scissor rod is arranged horizontally, the reinforcement tube (1) passes through the scissor portion at one end of the scissor rod, and the semicircular plate (32) includes two mutually hinged arc plates (321), and a displacement sensor (322) is installed between the two arc plates (321).

5. The device for constructing a subway tunnel close-range side-through bridge pile foundation according to claim 3, characterized in that: The connecting rod (31) is a cross-arranged scissor rod, the scissor rod is arranged vertically, the reinforcement tube (1) passes through the scissor part at one end of the scissor rod, and the scissor part at the other end of the scissor rod is equipped with a displacement sensor (322).

6. The device for constructing a subway tunnel close-range side-through bridge pile foundation according to claim 3, characterized in that: A clearance groove is provided at one end of the connecting rod (31), and the reinforcing tube (1) passes through the clearance groove. A strain sensor is installed on one side of the semicircular plate (32).

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