Monitoring system for reaction frames during pipe jacking

Abstract

Monitoring system for reaction frames in pipe jacking, characterized in that it comprises the following: a reaction frame that rests against the building wall and serves as a buttress during pipe jacking; a first monitoring device that is attached to the reaction frame and monitors the load-induced deformation of the reaction frame during pipe jacking; a second monitoring device, which is attached to the construction wall and monitors the deformation of the reaction frame during pipe jacking.

Description

Technical field

[0001] The present utility model relates to the field of tunneling technology and in particular to a monitoring system for reaction frames in pipe jacking. Background technology

[0002] In conventional pipe jacking, the jacking pipes and jacking equipment are typically supported by a solid wall in the launch shaft to provide counter-force. This allows the pipe jacking process, using the thrust generated by the jacking equipment, to overcome the friction between the pipe and the surrounding soil, drive the pipe into the ground at the planned gradient, and remove the excavated material. However, this method is only suitable for situations where the pipe jacking is supported on one side by a solid wall, meaning that there are no other passages or structures behind the wall, the wall has sufficient thickness, and there is a solid support structure behind the wall. In this case, no deformations or similar problems occur at the wall during pipe jacking.This method is not applicable to scenarios where there are additional passages or structures behind the wall. For example, if there is another connecting passage behind the wall, supporting the pipe jacking through this wall can easily lead to deformation or damage to the wall, posing a safety risk of collapse. Content of the utility model

[0003] The purpose of this utility model is to solve at least one technical problem from the prior art and to provide a monitoring system for reaction frames in pipe jacking.

[0004] To achieve the aforementioned purpose, the present utility model provides a monitoring system for reaction frames in pipe jacking, comprising: a reaction frame that rests against the building wall and serves as a buttress during pipe jacking; a first monitoring device that is attached to the reaction frame and monitors the load-induced deformation of the reaction frame during pipe jacking; a second monitoring device, which is attached to the construction wall and monitors the deformation of the reaction frame during pipe jacking.

[0005] According to one aspect of the present utility model, the reaction frame comprises several tripods arranged at intervals, each tripod consisting of a first right-angled support rod, a second right-angled support rod and an inclined rod; wherein the first right-angled support rod is arranged in a vertical direction; wherein the second right-angled support rod is arranged in a horizontal direction, with one end of it being perpendicularly connected to the lower end of the first right-angled support rod; wherein one end of the inclined bar is connected to the other end of the second right-angled support bar, while the other end of the inclined bar is connected to the upper part of the first right-angled support bar; the first right-angled support rod is braced against the adjacent construction wall during pipe jacking, while the second right-angled support rod is mounted on the support structure at the bottom of the pipe jacking starting pit.

[0006] According to one aspect of the present utility model, the first monitoring device comprises: the first monitoring apparatus; wherein the first monitoring device is attached to the inclined bar and aligned with the first right-angled support bar, and wherein the monitoring data is used to assess whether the first right-angled support bar exhibits load-induced deformation.

[0007] According to one aspect of the present utility model, the first monitoring device comprises the following: the second monitoring device; wherein the second monitoring device is attached to the inclined bar and aligned with the second right-angled support bar, assessing whether the second right-angled support bar exhibits load-induced deformation based on the monitoring data.

[0008] According to one aspect of the present utility model, the first monitoring device comprises the following: the third monitoring device; wherein the third monitoring device is attached to the second right-angled support rod and aligned with the first right-angled support rod, assessing whether the first right-angled support rod has load-induced deformation based on the monitoring data.

[0009] According to one aspect of the present utility model, the second monitoring device comprises the following: the fourth monitoring device; wherein the fourth monitoring device is attached to the building wall and aligned with the first right-angled support rod, assessing whether the first right-angled support rod has load-induced deformation based on the monitoring data.

[0010] According to one aspect of the present utility model, the first monitoring device, the second monitoring device, the third monitoring device and the fourth monitoring device are laser sensors.

[0011] The present utility model discloses a solution and provides a monitoring system for reaction frames used in pipe jacking, comprising: a reaction frame that rests against the building wall and serves as an abutment during pipe jacking; a first monitoring device attached to the reaction frame that monitors the load-induced deformation of the reaction frame during pipe jacking; and a second monitoring device attached to the building wall that also monitors the deformation of the reaction frame during pipe jacking. This arrangement makes it possible to monitor the reaction frame in real time via both the first and second monitoring devices to determine whether deformations occur during pipe jacking. Any deformation of the reaction frame indicates that the supporting forces of the building wall and the reaction frame are insufficient.In this case, construction must be stopped immediately and an inspection carried out. This effectively prevents significant safety risks during pipe jacking and ensures the safety and smooth progress of the construction work.

[0012] According to one solution of the present utility model, the reaction frame comprises several tripods arranged at intervals, each tripod consisting of a first right-angled support rod, a second right-angled support rod, and an inclined rod; wherein the first right-angled support rod is arranged in a vertical direction; wherein the second right-angled support rod is arranged in a horizontal direction, one end of which is perpendicularly connected to the lower end of the first right-angled support rod; wherein one end of the inclined rod is perpendicularly connected to the lower end of the first right-angled support rod; one end of the inclined rod is connected to the other end of the second right-angled support rod, while the other end of the inclined rod is connected to the upper part of the first right-angled support rod;The first right-angled support rod rests against the adjacent retaining wall during pipe jacking, while the second right-angled support rod is mounted on the support structure at the bottom of the pipe jacking launch pit. This arrangement ensures that the pipe jacking structure is supported by the retaining wall, and simultaneously, the retaining wall is supported from behind by the reaction frame. This provides stable and reliable support for the pipe jacking operations, ensures the structural stability of the retaining wall, protects the support structure from damage during pipe jacking, and guarantees sufficient support force. Furthermore, the tripod arrangement can further increase stability and significantly improve the stability of the support force.

[0013] According to one solution of the present utility model, the first monitoring device comprises the following: the first monitoring device; wherein the first monitoring device is attached to the inclined bar and aligned with the first right-angled support bar, and the monitoring data is used to assess whether the first right-angled support bar exhibits load-induced deformation. The first monitoring device may be a laser sensor. This arrangement makes it possible to monitor the initial position of the first right-angled support bar, as well as the change in position due to deformation and the resulting displacement, using the laser sensor, in order to determine the displacement value of the first right-angled support bar and to assess, based on the displacement data, whether the reaction frame has undergone deformation.

[0014] According to one solution of the present utility model, the first monitoring device comprises the following: the second monitoring device; wherein the second monitoring device is attached to the inclined bar and aligned with the second right-angled support bar, and the monitoring data is used to assess whether the second right-angled support bar exhibits load-induced deformation. The second monitoring device may be a laser sensor. This arrangement makes it possible to monitor the initial position of the second right-angled support bar, as well as the change in position due to deformation and the resulting displacement, using the laser sensor, in order to determine the displacement value of the second right-angled support bar and to assess, based on the displacement data, whether the reaction frame has undergone deformation.

[0015] The laser sensor is mounted on the inclined bar in such a way that it is not, or as little as possible, affected by deformations of the first and second right-angled support bars. Since the inclined bar is pulled along when the first and second right-angled support bars deform, the probability of deformation is low. This ensures more accurate data monitoring.

[0016] According to a solution of the present utility model, the first monitoring device comprises: the third monitoring device, wherein the third monitoring device is attached to the second right-angled support rod and aligned with the first right-angled support rod, assessing, based on the monitoring data, whether the first right-angled support rod exhibits load-induced deformation. The third monitoring device may be a laser sensor. This arrangement makes it possible, by means of the laser sensor, to monitor the initial position of the first right-angled support rod as well as the change in position due to deformation and the resulting displacement, in order to determine the displacement value of the first right-angled support rod and, based on the displacement data, to assess whether the reaction frame has undergone deformation.

[0017] According to one solution of the present utility model, the second monitoring device comprises the following: the fourth monitoring device; wherein the fourth monitoring device is mounted on the building wall and aligned with the first right-angled support rod, and the monitoring data is used to assess whether the first right-angled support rod exhibits load-induced deformation. The fourth monitoring device may be a laser sensor. This arrangement makes it possible to monitor the initial position of the first right-angled support rod, as well as the change in position due to deformation and the resulting displacement, using the laser sensor, in order to determine the displacement value of the first right-angled support rod and, based on the displacement data, to assess whether the reaction frame has undergone deformation.

[0018] According to the concept of this utility model, the present invention uses several monitoring devices to comprehensively monitor the reaction frames. By monitoring the displacement of sensitive points of the reaction frame during pipe jacking, it is assessed whether the reaction frame exhibits deformation. Based on the deformation, it is determined whether the support forces during pipe jacking are sufficient, thus enabling the proper execution of the pipe jacking to be evaluated. This concept ensures sufficient safety during pipe jacking, guarantees a smooth construction process, and effectively reduces potential safety risks. Illustration of the attached drawings Fig. Figure 1 shows a schematic main view of a reaction frame for pipe jacking according to an embodiment of the present utility model; Fig. Figure 2 shows a schematic top view of a reaction frame for pipe jacking according to an embodiment of the present utility model. Specific embodiments

[0019] The content of the present utility model application is explained below using exemplary embodiments. It should be understood that the embodiments shown are intended solely to provide those skilled in the field with a better understanding and thus facilitate the implementation of the utility model, without implying any limitation of the scope of protection of the present utility model application.

[0020] As used in this document, the terms "including" and their variants are to be understood as open terms meaning "including, but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "an embodiment" and "an implementation" are to be understood as "at least one embodiment".

[0021] Fig. Figure 1 shows a schematic main view of a reaction frame for pipe jacking according to an embodiment of the present utility model; Fig. Figure 2 shows a schematic top view of a reaction frame for pipe jacking according to an embodiment of the present utility model. As in Fig. 1 and Fig. As shown in 2, the monitoring system for reaction frames in pipe jacking in this embodiment comprises the following: a reaction frame 1 which rests against the building wall 2 and serves as a buttress during pipe jacking; a first monitoring device which is attached to the reaction frame 1 and monitors the load-induced deformation of the reaction frame 1 during pipe jacking; A second monitoring device is mounted on the building wall and monitors the deformation of the reaction frame during pipe jacking. This arrangement allows for real-time monitoring of the reaction frame via both the first and second monitoring devices to determine if any deformations occur during pipe jacking. Any deformation of the reaction frame indicates that the supporting forces of the building wall and the reaction frame are insufficient. In this case, construction must be stopped immediately and an inspection carried out. This effectively prevents significant safety risks during pipe jacking and ensures the safety and smooth progress of the construction work.

[0022] As in Fig. 1 and Fig. As shown in Figure 2, the reaction frame 1 further comprises several tripods arranged at intervals, each tripod consisting of a first right-angled support rod 3, a second right-angled support rod 4 and an inclined rod 5; wherein the first right-angled support rod 3 is arranged in a vertical direction; wherein the second right-angled support rod 4 is arranged in a horizontal direction, one end of which is connected perpendicularly to the lower end of the first right-angled support rod 3; wherein one end of the inclined bar 5 is connected to the other end of the second right-angled support bar 4, while the other end of the inclined bar 5 is connected to the upper part of the first right-angled support bar 3; The first right-angled support rod 3 rests against the adjacent retaining wall 2 during pipe jacking, while the second right-angled support rod 4 is mounted on the support structure at the bottom of the pipe jacking launch pit. This arrangement ensures that the pipe jacking structure is supported by the retaining wall 2, and simultaneously, the retaining wall 2 is supported from behind by the reaction frame 1. This provides stable and reliable support for the pipe jacking operations, ensures the structural stability of the retaining wall 2, protects the support structure from damage during pipe jacking, and guarantees sufficient support force. Furthermore, the tripod arrangement can further increase stability and significantly improve the stability of the support force.

[0023] Furthermore, the arrangement of the tripods can further increase stability and significantly improve the stability of the supporting force.

[0024] Furthermore, as in Fig. 1 The first monitoring device in the present utility model comprises the following: the first monitoring device 6; The first monitoring device 6 is attached to the inclined bar 5 and aligned with the first right-angled support bar 3, and the monitoring data is used to assess whether the first right-angled support bar 3 exhibits load-induced deformation. In the present embodiment, the first monitoring device 6 can be a laser sensor. This arrangement makes it possible to monitor the initial position of the first right-angled support bar 3, as well as the change in position due to deformation and the resulting displacement, using the laser sensor. This allows the displacement value of the first right-angled support bar 3 to be determined, and the displacement data to be used to assess whether the reaction frame 1 has undergone deformation.

[0025] Furthermore, as in Fig. 1 The first monitoring device in the present utility model comprises the following: the second monitoring device 7; The second monitoring device 7 is attached to the inclined rod 5 and aligned with the second right-angled support rod 4, and the monitoring data is used to assess whether the second right-angled support rod 4 exhibits load-induced deformation. In the present embodiment, the second monitoring device 7 can be a laser sensor. This arrangement makes it possible to monitor the initial position of the second right-angled support rod 4, as well as the change in position due to deformation and the resulting displacement, using the laser sensor. This allows the displacement value of the second right-angled support rod 4 to be determined, and the displacement data to be used to assess whether the reaction frame 1 has undergone deformation.

[0026] The laser sensor is mounted on the inclined rod 5 in such a way that it is not affected, or is affected as little as possible, by deformations of the first right-angled support rod 3 and the second right-angled support rod 4. Since the inclined rod 5 is pulled along when the first right-angled support rod 3 and the second right-angled support rod 4 deform, the probability of deformation is low. This ensures more precise data monitoring.

[0027] Furthermore, as in Fig. 1 The first monitoring device in the present utility model comprises the following: the third monitoring device 8; The third monitoring device 8 is attached to the second right-angled support rod 4 and aligned with the first right-angled support rod 3, and the monitoring data is used to assess whether the first right-angled support rod 3 exhibits load-induced deformation. In the present embodiment, the third monitoring device 8 can be a laser sensor. This arrangement makes it possible to monitor the initial position of the first right-angled support rod 3, as well as the change in position due to deformation and the resulting displacement, using the laser sensor. This allows the displacement value of the first right-angled support rod 3 to be determined, and the displacement data to be used to assess whether the reaction frame 1 has undergone deformation.

[0028] Furthermore, the second monitoring device in the present utility model comprises the following: the fourth monitoring device (not shown); The fourth monitoring device is mounted on the construction wall and aligned with the first right-angled support rod, and the monitoring data is used to assess whether the first right-angled support rod exhibits load-induced deformation. In the present embodiment, the fourth monitoring device can be a laser sensor. This arrangement makes it possible to monitor the initial position of the first right-angled support rod 3, as well as the change in position due to deformation and the resulting displacement, using the laser sensor. This allows the displacement value of the first right-angled support rod 3 to be determined, and the displacement data to be used to assess whether the reaction frame 1 has undergone deformation.

[0029] According to the aforementioned concept of this utility model, the present invention employs several monitoring devices to comprehensively monitor the reaction frames. By monitoring the displacement of sensitive points of the reaction frame during pipe jacking, it is assessed whether the reaction frame exhibits deformation. Based on this deformation, it is determined whether the support forces during pipe jacking are sufficient, thus enabling the proper execution of the pipe jacking process to be evaluated. This concept ensures adequate safety during pipe jacking, guarantees a smooth construction process, and effectively reduces potential safety risks.

[0030] Finally, it should be explained that the preferred embodiments mentioned above serve only to illustrate the technical solution of the present utility model application and do not constitute a limitation. Although the present utility model has been described in detail by the aforementioned preferred embodiments, those skilled in the art should understand that various modifications in form and details can be made without departing from the scope of protection defined in the claim part of the present utility model.

[0031] The present utility model relates to the field of tunneling technology and provides a monitoring system for reaction frames in pipe jacking, comprising: a reaction frame that rests against the tunnel wall and serves as an abutment during pipe jacking; a first monitoring device attached to the reaction frame that monitors the load-induced deformation of the reaction frame during pipe jacking; and a second monitoring device attached to the tunnel wall that monitors the deformation of the reaction frame during pipe jacking. According to the concept of this utility model, the present invention uses several monitoring devices to comprehensively monitor the reaction frames. By monitoring the displacement of sensitive points of the reaction frame during pipe jacking, it is assessed whether the reaction frame exhibits deformation.The deformation is used to determine whether the support forces are sufficient during pipe jacking, thus allowing for an assessment of the proper execution of the pipe jacking process. This concept ensures adequate safety during pipe jacking, guarantees a smooth construction process, and effectively reduces potential safety risks.

Claims

[1] Monitoring system for reaction frames in pipe jacking, characterized by , that it includes the following: a reaction frame that rests against the building wall and serves as a buttress during pipe jacking; a first monitoring device that is attached to the reaction frame and monitors the load-induced deformation of the reaction frame during pipe jacking; a second monitoring device, which is attached to the construction wall and monitors the deformation of the reaction frame during pipe jacking. [2] Monitoring system for reaction frames in pipe jacking according to claim 1, characterized by , that the reaction frame comprises several tripods arranged at intervals, each tripod consisting of a first right-angled support rod, a second right-angled support rod and an inclined rod; wherein the first right-angled support rod is arranged in a vertical direction; wherein the second right-angled support rod is arranged in a horizontal direction, one end of which is connected perpendicularly to the lower end of the first right-angled support rod; wherein one end of the inclined bar is connected to the other end of the second right-angled support bar, while the other end of the inclined bar is connected to the upper part of the first right-angled support bar; the first right-angled support rod is braced against the adjacent construction wall during the pipe jacking, while the second right-angled support rod is mounted on the support structure at the bottom of the pipe jacking starting pit. [3] Monitoring system for reaction frames in pipe jacking according to claim 2, characterized by , that the first monitoring device includes the following: a first monitoring device; wherein the first monitoring device is attached to the inclined bar and aligned with the first right-angled support bar, and wherein the monitoring data is used to assess whether the first right-angled support bar exhibits load-induced deformation. [4] Monitoring system for reaction frames in pipe jacking according to claim 3, characterized by , that the first monitoring device includes the following: a second monitoring device; wherein the second monitoring device is attached to the inclined bar and aligned with the second right-angled support bar, assessing whether the second right-angled support bar exhibits load-induced deformation based on the monitoring data. [5] Monitoring system for reaction frames in pipe jacking according to claim 4, characterized by , that the first monitoring device includes the following: a third monitoring device; wherein the third monitoring device is attached to the second right-angled support rod and aligned with the first right-angled support rod, assessing whether the first right-angled support rod has load-induced deformation based on the monitoring data. [6] Monitoring system for reaction frames in pipe jacking according to claim 5, characterized by , that the second monitoring device comprises: a fourth monitoring device; wherein the fourth monitoring device is attached to the building wall and aligned with the first right-angled support rod, assessing whether the first right-angled support rod has load-induced deformation based on the monitoring data. [7] Monitoring system for reaction frames in pipe jacking according to claim 6, characterized bythat the first monitoring device, the second monitoring device, the third monitoring device and the fourth monitoring device are laser sensors.

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