Double-row cofferdam steel sheet pile pull rod dynamometer embedding device

Abstract

The utility model provides a double-row cofferdam steel sheet pile pull rod dynamometer embedding device, which comprises fixed bases, a steel pull rod and a rubber gasket, the two fixed bases are separated from two sides, the steel pull rod is arranged between the fixed bases on the two sides, the rubber gasket is arranged at the joint of the steel pull rod and the fixed bases, and the rubber gasket is arranged on the fixed bases. A positioning fixing groove is formed in the side face of the fixing base, and a plurality of annular supporting plates are installed on the outer end face of the steel pull rod. According to the scheme, non-central stress generated during cofferdam deformation can be more uniformly distributed and transmitted by adopting the force measuring sensors which are symmetrically arranged in a cross-shaped manner by taking the steel pull rod as the center, so that the stress measurement accuracy is improved, meanwhile, the detachable protective shell is designed in the scheme and can be tightly arranged on the outer end face of the steel pull rod in a sleeving manner, and the stress measurement accuracy is improved. Damage to the dynamometer caused by the external environment is effectively prevented, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, specifically to a device for embedding a force gauge for steel sheet pile tie rods in a double-row cofferdam. Background Technology

[0002] In water conservancy projects, building construction, and underground space development, double-row steel sheet pile cofferdams are widely used as temporary or permanent water-retaining and soil-retaining structures due to their rapid construction, relatively low cost, and reusability. They play an indispensable role, particularly in deep-water foundation construction, river management, and foundation pit support. To ensure the stability and safety of the cofferdam structure, real-time monitoring of stress changes in the connecting rods between the double-row steel sheet piles is crucial.

[0003] Traditionally, force gauges are directly attached or welded to steel tie rods to monitor stress changes. However, steel tie rods typically have smooth surfaces and lack effective support structures, making the force gauges susceptible to displacement after installation due to external factors (such as pile vibration and backfill sand pressure), thus affecting the accuracy of the measurement data. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a double-row cofferdam sheet pile tie rod force gauge installation device, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-row cofferdam sheet pile tie rod force gauge installation device, comprising a fixed base, a steel tie rod, and a rubber pad. The two fixed bases are separated on both sides, and the steel tie rod is installed between the two fixed bases. The rubber pad is installed at the connection between the steel tie rod and the fixed base. The fixed base has a positioning and fixing groove on its side. Several annular support plates are installed on the outer end face of the steel tie rod. The annular support plates are arranged in an array. Four force sensors are installed on the outer end face of the annular support plates. The force sensors are arranged symmetrically around the steel tie rod in a cross-shaped pattern.

[0008] Preferably, a connecting support plate is fixed to one end of the fixed base on one side, and a signal cable is connected to one end of the fixed base to achieve the effect of information output.

[0009] Preferably, a plurality of signal connection lines are installed and connected between the annular support plates on each side, and the signal connection lines are gathered together at the fixed base on one side and connected to the signal cable.

[0010] Preferably, the two fixed bases on both sides are provided with mounting grooves with opposite openings on one side, and two detachable protective shells are installed in the mounting grooves, the two protective shells being semi-circular arc-shaped.

[0011] Preferably, one of the protective shells has mounting strips fixed at both ends, and the other protective shell has connecting grooves fixed at both ends. The mounting strips and the connecting grooves are provided with a number of threaded grooves that are open and communicate vertically.

[0012] Preferably, the inner arc surface of the protective shell on both sides is provided with a plurality of temperature sensors, and the temperature sensors are distributed in a ring array.

[0013] (III) Beneficial Effects

[0014] This utility model provides a device for embedding a force gauge on a double-row cofferdam sheet pile tie rod. It has the following features:

[0015] Beneficial effects:

[0016] 1. This scheme uses force sensors arranged symmetrically around the steel tie rod as the center, which can more evenly distribute and transmit the non-central forces generated during the deformation of the cofferdam, thereby improving the accuracy of stress measurement.

[0017] 2. This design features a detachable protective shell that can be tightly fitted onto the outer end face of the steel tie rod, effectively preventing damage to the force gauge from the external environment and extending the service life of the device.

[0018] 3. This solution transmits the signals from the force sensor and temperature sensor to the working terminal via signal cable. Staff can remotely observe and record stress change data and the temperature of the device casing, facilitating timely detection of problems and implementation of maintenance measures. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a side view of the structure of this utility model.

[0023] In the diagram: 101, fixed base; 102, force sensor; 103, signal connection cable; 104, annular support plate; 105, steel tie rod; 106, rubber gasket; 107, mounting groove; 108, positioning and fixing groove; 109, signal cable; 110, connecting support plate; 111, protective shell; 112, mounting strip; 113, connecting groove; 114, threaded groove; 115, temperature sensor. Detailed Implementation

[0024] This utility model embodiment provides a device for embedding a force gauge for a double-row cofferdam sheet pile tie rod, such as... Figure 1-4 As shown, the device includes a fixed base 101, a steel tie rod 105, and a rubber pad 106. The two fixed bases 101 are separated on both sides. The steel tie rod 105 is installed between the two fixed bases 101. The rubber pad 106 is installed at the connection between the steel tie rod 105 and the fixed base 101. The fixed base 101 has a positioning and fixing groove 108 on its side. Several annular support plates 104 are installed on the outer end face of the steel tie rod 105. The annular support plates 104 are arranged in an array. Four force sensors 102 are installed on the outer end face of the annular support plates 104. The force sensors 102 are arranged symmetrically with the steel tie rod 105 as the center.

[0025] It should be further explained that the positioning and fixing groove 108 facilitates the installation of the base 101 at the fixed force measuring position. When the cofferdam deforms, the stress generated by the steel tie rod 105 is uneven and is non-centrally stressed. Therefore, the force sensor 102 is arranged symmetrically with the steel tie rod 105 as the center.

[0026] Furthermore, a connecting support plate 110 is fixed to one end of the fixed base 101 on one side, and a signal cable 109 is connected to one end of the fixed base 101 to achieve the effect of information output.

[0027] Furthermore, several signal connection lines 103 are installed and connected between the annular support plates 104 on each side. The signal connection lines 103 are gathered together at the fixed base 101 on one side and connected to the signal cable 109.

[0028] It should be further explained that the signal connection line 103 connects and summarizes the signals of the annular support plate 104 and inputs them into the signal cable 109, which plays a unified role in signal transmission. The summarized signal is then transmitted to the work terminal through the signal cable 109, which facilitates the remote observation and recording of the collected stress changes by the staff.

[0029] Furthermore, the two fixed bases 101 on both sides are provided with mounting grooves 107 with opposite openings on one side. Two detachable protective shells 111 are installed in the mounting grooves 107, and the two protective shells 111 are semi-circular arc-shaped.

[0030] Furthermore, one protective shell 111 has mounting strips 112 fixed at both ends, and the other protective shell 111 has connecting grooves 113 fixed at both ends. The mounting strips 112 and the connecting grooves 113 are provided with several threaded grooves 114 that are open and connected vertically.

[0031] It should be further explained that after the two protective shells 111 are installed into the mounting groove 107 one after another, the protective shells 111 on both sides overlap, and the mounting strip 112 overlaps with the connecting groove 113. At this time, the mounting strip 112 overlaps with the threaded groove 114 in the connecting groove 113, which makes it convenient for the staff to use the threaded connection to install and connect the two protective shells 111. At this time, the installed and connected protective shells 111 can be fitted onto the outer end face of the steel tie rod 105 to achieve the protection effect.

[0032] Furthermore, the inner arc surface of the protective shell 111 on both sides is provided with several temperature sensors 115, and the temperature sensors 115 are distributed in a ring array.

[0033] It should be further explained that the temperature sensor 115 detects the temperature of the protective shell 111 by attaching to the surface of the protective shell 111, and after summarizing the temperature information detected from different parts, it outputs the signal by connecting to the signal cable 109.

[0034] It is worth further explaining that the temperature detection of the temperature sensor 115 can help to detect and deal with potential overheating or overcooling problems in a timely manner. These problems may affect the accuracy and stability of the force gauge. If the device is exposed to a high temperature environment for a long time, it may cause problems such as material expansion and deterioration of electronic component performance. Conversely, in a low temperature environment, some materials may become brittle and electronic components may become unstable.

[0035] When using this solution, firstly, the fixed bases 101 on both sides are moved to the predetermined installation position to ensure that the positioning and fixing grooves 108 on the side of the fixed base 101 can be accurately fixed at the fixed force measuring position. After being fixed with bolts in the positioning and fixing grooves 108, the position is fixed by welding at the bottom of the fixed base 101. Then, the steel tie rod 105 is installed between the fixed bases 101 on both sides, and its position is ensured to be accurate to withstand the non-central force from the deformation of the cofferdam. Since several annular support plates 104 are installed on the outer end face of the steel tie rod 105, these force sensors 102 are arranged symmetrically with the annular support plates 104 as the center of the cross, so that the stress can be distributed and transmitted more evenly, improving the accuracy of the measurement.

[0036] Subsequently, the staff installed the protective shells 111 in the mounting slots 107 on both sides. After the two protective shells 111 were installed into the mounting slots 107 and overlapped, they were fixed by threaded connection through the mounting strip 112 and the threaded grooves 114 in the connecting slot 113, which are connected vertically through several openings. After installation, the protective shells 111 can be tightly fitted onto the outer end face of the steel tie rod 105, providing effective protection. After the installation work was completed, the entire device was buried with sand and gravel.

[0037] Subsequently, during the force measurement process, after the force is detected at different positions of the steel tie rod 105 by the annular support plate 104, the measurement signal is collected and transmitted to the signal cable 109 through the signal connection line 103. The collected signal is then transmitted to the working terminal through the signal cable 109, which facilitates the remote observation and recording of the collected stress changes by the staff.

[0038] Meanwhile, the temperature sensor 115 installed inside the protective shell 111 measures and records the temperature of the outer shell of the protective shell 111 in real time. After summarizing these temperature information, they are also connected to the working terminal through the signal cable 109 or a dedicated temperature signal transmission channel. The staff can not only remotely observe and record stress change data, but also monitor the temperature of the device shell in real time to ensure that the device operates within a suitable operating temperature range and prevent performance degradation or damage caused by excessively high or low temperatures.

[0039] Furthermore, by recording the real-time temperature through the temperature sensor 115 and combining it with stress change data, staff can gain a more comprehensive understanding of the device's operating status, take necessary maintenance measures in a timely manner, and ensure the accuracy of the measurement data and the long-term stable operation of the device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for embedding a tension gauge for sheet piles in a double-row cofferdam, comprising a fixed base (101), a steel tie rod (105), and a rubber pad (106), characterized in that: Two fixed bases (101) are separated on both sides. The steel tie rod (105) is installed between the two fixed bases (101). The rubber pad (106) is installed at the connection between the steel tie rod (105) and the fixed base (101). The fixed base (101) has a positioning and fixing groove (108) on its side. Several annular support plates (104) are installed on the outer end face of the steel tie rod (105). The annular support plates (104) are arranged in an array. Four force sensors (102) are installed on the outer end face of the annular support plates (104). The force sensors (102) are arranged symmetrically with the steel tie rod (105) as the center.

2. The device for embedding a double-row cofferdam sheet pile tie rod force gauge according to claim 1, characterized in that: One end of the fixed base (101) on one side is fixed with a connecting support plate (110), and one end of the fixed base (101) is connected with a signal cable (109).

3. The device for embedding a double-row cofferdam sheet pile tie rod force gauge according to claim 2, characterized in that: Several signal connection lines (103) are installed and connected between the annular support plates (104) on each side. The signal connection lines (103) converge at the fixed base (101) on one side and are connected to the signal cable (109).

4. The device for embedding a double-row cofferdam sheet pile tie rod force gauge according to claim 1, characterized in that: The two fixed bases (101) on both sides are provided with mounting grooves (107) with opposite openings on one side, and two protective shells (111) are installed in the mounting grooves (107).

5. The device for embedding a double-row cofferdam sheet pile tie rod force gauge according to claim 4, characterized in that: One of the protective shells (111) has mounting strips (112) fixed at both ends, and the other protective shell (111) has connecting grooves (113) fixed at both ends. The mounting strips (112) and the connecting grooves (113) are provided with a number of threaded grooves (114) that are open and connected vertically.

6. The device for embedding a double-row cofferdam sheet pile tie rod force gauge according to claim 5, characterized in that: The inner arc surface of the protective shell (111) on both sides is provided with a number of temperature sensors (115), and the temperature sensors (115) are arranged in a ring array.

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