A deep foundation pit steel sheet pile support structure

Abstract

The utility model discloses a deep foundation pit steel sheet pile support structure, including steel sheet pile, its quantity has multiple groups. Advantageous effect lies in: the utility model passes through setting up first monitoring optical fiber, second monitoring optical fiber and anchor line meter etc. monitoring sensor in support structure to wireless on -line with application software intelligent control system and foundation pit, steel sheet pile automation monitoring sensor and mobile type grouting system, realizes steel sheet pile to set, anchor line construction, the data overlimit early warning of each item in the process of foundation pit excavation, anchor line grouting flow monitoring, and the better control of deep foundation pit construction quality is assisted management personnel, and the automatic data of each item are periodically collected to the sensor of embedding automaticity monitoring system of foundation pit, and the abnormal data are collected, and transmission is delayed to data processing center, and the instantaneity is good, realizes real -time monitoring in the construction process, not only good support effect, and improved management efficiency, saved construction cost, and the construction quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of deep foundation pit support technology, specifically to a deep foundation pit steel sheet pile support structure. Background Technology

[0002] Deep foundation pit excavation is characterized by high risks, significant construction difficulties, and complex organizational management. Traditional deep foundation pits using sheet pile support require monitoring, with key technical parameters measured manually on-site periodically using instruments. This process is labor-intensive, highly susceptible to environmental and site conditions, and prone to systematic and human errors. Furthermore, the binary support structure formed by the combination of sheet piles and anchor cables is difficult to control in terms of construction quality and continuity if efficient coordination is not achieved during construction, thus affecting the quality of the anchor cables. Therefore, there is an urgent need for a new sheet pile support structure for deep foundation pits to address these issues. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] The technical problem to be solved by this utility model is to provide a deep foundation pit steel sheet pile support structure in light of the current state of the technology.

[0005] (II) Technical Solution

[0006] This utility model is achieved through the following technical solution: This utility model proposes a deep foundation pit steel sheet pile support structure, including multiple sets of steel sheet piles. A connector is fixed on one side wall of each steel sheet pile, and a steel waist beam is installed at one end of the connector. A steel pad is fixed on one side wall of the steel waist beam, and an anchor gauge is installed on the steel pad. An anchor cable is fixed on the connection port of the anchor gauge, and a transmission line is led out from the anchor gauge. An angle steel is fixed on one side of the inner wall of each steel sheet pile, and a first monitoring optical fiber is installed on the angle steel. Two sets of reinforcing bars are arranged on the other side of the inner wall of each steel sheet pile, and a second monitoring optical fiber is arranged between the reinforcing bars.

[0007] Furthermore, the steel sheet piles have pre-drilled connection slots at both ends, and the steel sheet piles are assembled together through the connection slots.

[0008] Furthermore, the connector is welded to one side wall of the sheet pile, and the steel waist beam is welded to one end of the connector.

[0009] Furthermore, the steel pad is welded to the steel waist beam, and the anchor cable is fixed to the steel pad by bolts.

[0010] Furthermore, the anchor cable is fixed inside the anchor cable gauge, and the anchor cable is made of steel wire rope.

[0011] Furthermore, the transmission line is electrically connected to the anchor cable, and the transmission line is a flexible structure.

[0012] Furthermore, the angle steel is welded to the back wall of the sheet pile, the first monitoring optical fiber is fixed to the angle steel, and the first monitoring optical fiber is bonded to the inner wall of the sheet pile.

[0013] Furthermore, the reinforcing bars are welded to the inner wall of the sheet pile, and the two sets of reinforcing bars form a groove, in which the second monitoring optical fiber is bonded.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention, by installing first and second monitoring optical fibers and anchor cable gauges in the support structure, and wirelessly connecting the application software intelligent control system with the foundation pit, sheet pile automated monitoring sensors, and mobile grouting system, enables early warning alerts for exceeding data limits during sheet pile driving, anchor cable construction, and foundation pit excavation, as well as monitoring anchor cable grouting flow. This assists managers in better controlling the construction quality of deep foundation pits. The foundation pit automated monitoring system automatically and periodically collects various data through embedded sensors, focusing on collecting abnormal data, and transmits it to the data processing center without delay, ensuring good immediacy and real-time monitoring during construction. This not only improves the support effect but also enhances management efficiency, saves construction costs, and guarantees construction quality. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a deep foundation pit steel sheet pile support structure according to the present invention;

[0018] Figure 2 This is a rear view of a deep foundation pit steel sheet pile support structure as described in this utility model;

[0019] Figure 3 This utility model describes a deep foundation pit steel sheet pile support structure. Figure 1 Enlarged view of point A in the middle.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Steel sheet pile; 2. Connector; 3. Steel waist beam; 4. Steel pad; 5. Anchor cable gauge; 6. Anchor cable; 7. Transmission line; 8. Angle steel; 9. First monitoring optical fiber; 10. Reinforcing bar; 11. Second monitoring optical fiber. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] like Figures 1-3 As shown, a deep foundation pit sheet pile support structure in this embodiment includes multiple sets of sheet piles 1. A connector 2 is fixed on one side wall of the sheet pile 1, and a steel waist beam 3 is installed at one end of the connector 2 to connect and fix multiple sets of sheet piles 1. A steel pad 4 is fixed on one side wall of the steel waist beam 3 to facilitate the connection of anchor cables 6 with the steel waist beam 3. An anchor gauge 5 is installed on the steel pad 4 to monitor the tension of the anchor cable 6 in real time. An anchor cable 6 is fixed on the connection port of the anchor gauge 5 to form a deep foundation pit support structure with the sheet piles 1. A transmission line 7 is also led out from the anchor gauge 5 to transmit the monitored data to the corresponding external acquisition device. An angle steel 8 is fixed on one side of the inner wall of the sheet pile 1, and a first monitoring optical fiber 9 is installed on the angle steel 8 to monitor the strain caused by the temperature of the sheet pile 1. Two sets of reinforcing bars 10 are arranged on the other side of the inner wall of the sheet pile 1, and a second monitoring optical fiber 11 is arranged between the reinforcing bars 10 to monitor the strain caused by the internal force of the sheet pile 1.

[0024] like Figures 1-3 In this embodiment, the steel sheet pile 1 has pre-reserved connecting grooves at both ends. The steel sheet piles 1 are assembled through the connecting grooves. The connecting piece 2 is welded to one side wall of the steel sheet pile 1. The steel waist beam 3 is welded to one end of the connecting piece 2. The steel pad 4 is welded to the steel waist beam 3. The anchor gauge 5 is fixed to the steel pad 4 with bolts. The anchor cable 6 is fixed inside the anchor gauge 5. The material of the anchor cable 6 is steel wire rope. The transmission line 7 is electrically connected to the anchor gauge 5. The transmission line 7 is a flexible structure. First, the steel sheet pile 1 is driven into the edge of the deep foundation pit to be excavated. Then, it is connected and fixed by the steel waist beam 3. Then, it is further reinforced by the anchor cable 6 to achieve effective support for the deep foundation pit. At the same time, one end of the transmission line 7 is connected to an external data acquisition device, which can transmit the tensile force data of the anchor cable 6 monitored by the anchor gauge 5 to the data acquisition device.

[0025] like Figures 1-3 In this embodiment, angle steel 8 is welded to the back wall of sheet pile 1, first monitoring optical fiber 9 is fixed to angle steel 8 and bonded to the inner wall of sheet pile 1, reinforcing bar 10 is welded to the inner wall of sheet pile 1, and two sets of reinforcing bars 10 form a groove. Second monitoring optical fiber 11 is bonded to the groove. During the support process, first monitoring optical fiber 9 monitors the strain caused by temperature in sheet pile 1, and second monitoring optical fiber 11 monitors the strain caused by internal force in sheet pile 1. At the same time, the monitored data from first monitoring optical fiber 9 and second monitoring optical fiber 11 are transmitted to an external light collector.

[0026] The specific implementation process of this embodiment is as follows: First, the steel sheet pile 1 is driven into the edge of the deep foundation pit to be excavated, and then it is connected and fixed by the steel waist beam 3. Next, it is further reinforced by the anchor cable 6 to achieve effective support for the deep foundation pit. During the support process, one end of the transmission line 7 is connected to an external data acquisition device, which can transmit the tensile force data of the anchor cable 6 monitored by the anchor cable gauge 5 to the data acquisition device. The first monitoring optical fiber 9 monitors the strain caused by the temperature of the steel sheet pile 1, and the second monitoring optical fiber 11 monitors the strain caused by the internal force of the steel sheet pile 1. At the same time, the monitored data of the first monitoring optical fiber 9 and the second monitoring optical fiber 11 are transmitted to the external optical data acquisition device. The application software intelligent control system is wirelessly connected to the foundation pit, the sheet pile 1 automated monitoring sensors, and the mobile grouting system. This enables early warning alerts for exceeding data limits during the sheet pile 1 driving, anchor cable 6 construction, and foundation pit excavation processes, as well as monitoring the grouting flow of the anchor cable 6. This assists managers in better controlling the construction quality of deep foundation pits. The foundation pit automated monitoring system automatically collects various data periodically through embedded sensors, focusing on collecting abnormal data, and transmits it to the data processing center without delay. This real-time monitoring during construction not only provides better support but also improves management efficiency, saves construction costs, and ensures construction quality.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A deep foundation pit steel sheet pile support structure, characterized in that: The sheet pile (1) includes multiple sets of steel sheet piles. A connector (2) is fixed on one side wall of the sheet pile (1). A steel waist beam (3) is installed at one end of the connector (2). A steel pad (4) is fixed on one side wall of the steel waist beam (3). An anchor gauge (5) is installed on the steel pad (4). An anchor cable (6) is fixed on the connection port of the anchor gauge (5). A transmission line (7) is also led out from the anchor gauge (5). An angle steel (8) is fixed on one side of the inner wall of the sheet pile (1). A first monitoring optical fiber (9) is installed on the angle steel (8). Two sets of steel bars (10) are provided on the other side of the inner wall of the sheet pile (1). A second monitoring optical fiber (11) is provided between the steel bars (10).

2. The deep foundation pit steel sheet pile (1) support structure according to claim 1, characterized in that: The steel sheet piles (1) have pre-reserved connecting grooves at both ends, and the steel sheet piles (1) are assembled together through the connecting grooves.

3. The deep foundation pit steel sheet pile support structure according to claim 1, characterized in that: The connector (2) is welded to one side wall of the sheet pile (1), and the steel waist beam (3) is welded to one end of the connector (2).

4. The deep foundation pit steel sheet pile support structure according to claim 1, characterized in that: The steel pad (4) is welded to the steel waist beam (3), and the anchor cable (5) is fixed to the steel pad (4) by bolts.

5. A deep foundation pit steel sheet pile support structure according to claim 4, characterized in that: The anchor cable (6) is fixed inside the anchor cable gauge (5), and the material of the anchor cable (6) is steel wire rope.

6. A deep foundation pit steel sheet pile support structure according to claim 5, characterized in that: The transmission line (7) is electrically connected to the anchor cable gauge (5), and the transmission line (7) is a flexible structure.

7. A deep foundation pit steel sheet pile support structure according to claim 6, characterized in that: The angle steel (8) is welded to the back wall of the sheet pile (1), the first monitoring optical fiber (9) is fixed to the angle steel (8), and the first monitoring optical fiber (9) is bonded to the inner wall of the sheet pile (1).

8. A deep foundation pit steel sheet pile support structure according to claim 7, characterized in that: The reinforcing bars (10) are welded to the inner wall of the sheet pile (1), and the two sets of reinforcing bars (10) form a groove, and the second monitoring optical fiber (11) is bonded to the groove.

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