Inclination monitoring device in sinking process of large open caisson

Abstract

The utility model discloses an inclination monitoring device in the sinking process of a large open caisson, which comprises a plurality of monitoring units arranged along the periphery of the open caisson at intervals, the monitoring unit comprises a fixed block fixed to the peripheral ground of the open caisson sinking foundation pit, a fixed column fixed to the fixed block, a horizontal scale connected to the fixed column and a vertical marker post fixed to the outer wall of the open caisson, scale marks are arranged on the vertical marker post, an annular ferrule is arranged at the end of the horizontal scale and arranged outside the vertical marker post in a sleeving mode, and the horizontal scale is connected to the vertical marker post. The central axis of the annular ferrule coincides with the central axis of the vertical marker post, the inner diameter of the annular ferrule is larger than the outer diameter of the vertical marker post, and in the initial state of sinking of the open caisson, the multiple horizontal scales of the multiple monitoring units are all located at the same scale positions of the corresponding vertical marker posts. According to the utility model, the sinking process of the open caisson is monitored, the deflection angle is controlled within an allowable range as far as possible, various problems caused by subsequent large-degree deviation rectification are avoided, and the construction quality of the open caisson is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of caisson sinking construction, and more specifically, to a device for monitoring the inclination of a large caisson during its sinking process. Background Art

[0002] Traditional caisson construction often adopts a method of segmented production and phased sinking. First, the first segment of the caisson is made on the ground, and then the soil in the well is excavated for sinking. After sinking to a certain depth, it continues to be raised and sunk, and the above steps are repeated until the designed depth is reached. The caisson of the present application adopts a construction method of segmented production and one-time sinking, which improves construction efficiency and greatly saves construction time. However, when the caisson is made and sinks only by its own weight during the one-time sinking process, it often causes sudden sinking, tilting, and over-sinking during sinking due to factors such as uneven strata, irregular excavation, and biased loads. It has adverse consequences for the stability of the surrounding environment, personnel safety, and project quality, and the engineering costs generated by subsequent correction processes will also increase significantly. Therefore, the present application designs a device for monitoring the inclination during the sinking process of a large caisson to solve the above-mentioned technical problems. Utility Model Content

[0003] One purpose of the utility model is to provide a device for monitoring the inclination of a large caisson during the sinking process. By constantly monitoring the inclination of the large caisson during the sinking process, the sinking process of the caisson can be adjusted at any time, and the deflection angle can be controlled within an allowable range as much as possible, thereby avoiding various problems caused by subsequent large-scale corrections, which is beneficial to ensuring the quality of caisson construction.

[0004] In order to solve the above technical problems, the utility model provides a device for monitoring the inclination during the sinking process of a large caisson, comprising a plurality of monitoring units, which are arranged at intervals along the outer periphery of the caisson, the monitoring units comprising a fixed block fixed to the outer periphery of the foundation pit of the caisson, a fixed column fixed on the fixed block, a horizontal ruler connected to the fixed column, and a vertical benchmark fixed on the outer wall of the caisson, the vertical benchmark being provided with scale lines, the end of the horizontal ruler being provided as an annular ring, and being sleeved outside the vertical benchmark, the annular ring coincides with the central axis of the vertical benchmark, the inner diameter of the annular ring is larger than the outer diameter of the vertical benchmark, and in the initial state of the sinking of the caisson, the plurality of horizontal rulers of the plurality of monitoring units are all located at the same scale of the corresponding vertical benchmark.

[0005] Preferably, the fixing column is a telescopic structure composed of multiple sections of telescopic sleeves.

[0006] Preferably, the fixed column is a telescopic structure formed by stacking a plurality of reference blocks in sequence, adjacent reference blocks are detachably connected by bolts, the bottommost reference block is fixed on the fixed block, and the topmost reference block is fixedly connected to the horizontal ruler.

[0007] Preferably, it also includes a control system, and a plurality of camera devices are arranged on the outer peripheral ground of the caisson sinking pit, which are used to collect image information at the junction of the horizontal scales and the vertical benchmarks corresponding to the plurality of monitoring units and transmit the image information to the control system, and the control system obtains the caisson sinking height monitored by each monitoring unit based on the acquired image information.

[0008] Preferably, a plurality of sensors are provided on the inner wall of the annular collar, and when the vertical pole tilts to a set angle as the caisson sinks, it contacts the sensor and sends a signal to the control system through the sensor, and the control system receives the signal and displays an abnormality.

[0009] Preferably, the vertical marker is fixedly connected to the outer wall of the caisson through an auxiliary component, the auxiliary component is fixed to the outer wall of the caisson and protrudes outside the caisson, and the vertical marker and the auxiliary component are connected as a whole.

[0010] The utility model at least has the following beneficial effects:

[0011] 1. The utility model monitors the sinking heights of multiple positions of the caisson by arranging monitoring units at multiple positions of the caisson, and obtains the sinking height conditions of multiple positions through a control system, so as to judge whether the caisson is tilted and the tilt range according to the height conditions. The monitoring unit has a simple structure and strong operability.

[0012] 2. The utility model monitors the inclination of a large caisson at all times during the sinking process, and adjusts the caisson sinking process at any time, controls the deflection angle within the allowable range as much as possible, avoids various problems caused by subsequent large-scale correction, and is beneficial to ensuring the quality of caisson construction.

[0013] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the annular ring of the utility model.

[0016] Description of reference numerals:

[0017] 1. Caisson, 2. Fixed block, 3. Fixed column, 4. Horizontal scale, 5. Vertical benchmark, 6. Annular ring, 7. Sensor, 8. Auxiliary parts, 9. Reference block. DETAILED DESCRIPTION

[0018] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement it according to the description.

[0019] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] like Figure 1 and Figure 2 As shown, the utility model provides an inclination monitoring device during the sinking process of a large caisson, including multiple monitoring units, which are arranged at intervals along the outer periphery of the caisson 1, the monitoring units include a fixed block 2 fixed to the outer peripheral ground of the foundation pit of the caisson 1, a fixed column 3 fixed on the fixed block 2, a horizontal ruler 4 connected to the fixed column 3, and a vertical mark rod 5 fixed on the outer wall of the caisson 1, and scale lines are arranged on the vertical mark rod 5. The end of the horizontal ruler 4 is set as an annular ring 6, and is sleeved outside the vertical mark rod 5. The annular ring 6 coincides with the central axis of the vertical mark rod 5, and the inner diameter of the annular ring 6 is larger than the outer diameter of the vertical mark rod 5. In the initial state of the sinking of the caisson 1, the multiple horizontal rulers 4 of the multiple monitoring units are all located at the same scale of the corresponding vertical mark rod 5.

[0021] The fixed block 2 is stably anchored in the ground at the periphery of the foundation pit by anchoring or other means. The fixed block 2 is anchored in the ground range that will not interfere during the sinking of the caisson 1, so as not to affect the stability of the fixed column 3 above. The horizontal ruler 4 on the fixed column 3 is a stable ruler that can always remain horizontal, and is used to assist in observing and obtaining the height dimension of the corresponding vertical benchmark 5, which serves as a reference line. The vertical benchmark 5 is initially in a vertical state and sinks with the caisson 1. When the caisson 1 tilts, the vertical benchmark 5 will also tilt, so that the height dimensions of the vertical benchmarks 5 corresponding to each monitoring unit are inconsistent. The tilt angle of the caisson 1 can be indirectly judged based on the obtained height dimension change.

[0022] In another embodiment, the fixed column 3 is a telescopic structure composed of a multi-section telescopic sleeve. The fixed column 3 is a telescopic structure formed by stacking a plurality of reference blocks 9 in sequence, and the adjacent reference blocks 9 are disassembled and connected by bolts, the bottom reference block 9 is fixed on the fixed block 2, and the top reference block 9 is fixedly connected to the horizontal scale 4. The fixed column 3 is set as a telescopic structure, which is not limited to the two structural forms given. When the caisson 1 sinks, the height of the fixed column 3 is flexibly adjusted according to the height of the vertical benchmark 5, so that the horizontal scale 4 matches the vertical benchmark 5.

[0023] In another embodiment, it also includes a control system, and a plurality of camera devices are set on the outer peripheral ground of the sinking pit of the caisson 1, which are used to collect image information at the junction of the horizontal scale 4 and the vertical benchmark 5 corresponding to the plurality of monitoring units and transmit it to the control system. The control system obtains the sinking height of the caisson 1 monitored by each monitoring unit based on the acquired image information, obtains the posture of the caisson 1 according to different changes in height, and thus obtains the inclination of the sinking of the caisson 1.

[0024] In another embodiment, a plurality of sensors 7 are provided on the inner wall of the annular collar 6. When the vertical pole 5 follows the sinking of the caisson 1 and tilts to a set angle, it contacts the sensor 7 and sends a signal to the control system through the sensor 7. The control system receives the signal and displays an abnormality.

[0025] The inner diameter of the annular collar 6 is set so that when the vertical pole 5 tilts and contacts the sensor 7 during the sinking of the caisson 1, the deflection angle of the sinking of the caisson 1 exceeds the set range. The inclination angle of the vertical pole 5 is calculated by the pre-designed error range of the sinking inclination angle of the caisson 1, and the maximum inclination angle of the vertical pole 5 is obtained. If the angle exceeds the error range, the sinking of the caisson 1 will need to readjust the posture to within the set error range, so an abnormal display is required, and then the deflection angle is controlled as much as possible within the allowable range through adjustment.

[0026] In another embodiment, the vertical marker 5 is fixedly connected to the outer wall of the caisson 1 through an auxiliary component 8. The auxiliary component 8 is fixed to the outer wall of the caisson 1 and protrudes outside the caisson 1. The vertical marker 5 and the auxiliary component 8 are connected as a whole.

[0027] It can be understood that the present invention is described by some embodiments, and those skilled in the art know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation mode. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, other modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to specific details and the illustrations shown and described here.

Claims

1. A device for monitoring the inclination of a large caisson during its sinking process, characterized in that: It comprises a plurality of monitoring units, which are arranged at intervals along the outer periphery of the caisson, the monitoring units comprising a fixed block fixed to the outer periphery of the foundation pit of the caisson, a fixed column fixed to the fixed block, a horizontal ruler connected to the fixed column, and a vertical benchmark fixed to the outer wall of the caisson, the vertical benchmark being provided with graduation lines, the end of the horizontal ruler being provided with an annular ring, and being sleeved outside the vertical benchmark, the annular ring coincides with the central axis of the vertical benchmark, the inner diameter of the annular ring is larger than the outer diameter of the vertical benchmark, and in the initial state of the caisson sinking, the plurality of horizontal rulers of the plurality of monitoring units are all located at the same scale of the corresponding vertical benchmark.

2. The device for monitoring the inclination of a large caisson during sinking as claimed in claim 1, characterized in that: The fixed column is a telescopic structure composed of multiple sections of telescopic sleeves.

3. The device for monitoring the inclination of a large caisson during sinking as claimed in claim 1, characterized in that: The fixed column is a telescopic structure formed by stacking a plurality of reference blocks in sequence. Adjacent reference blocks are detachably connected by bolts. The bottom reference block is fixed on the fixed block, and the top reference block is fixedly connected to the horizontal ruler.

4. The device for monitoring the inclination of a large caisson during sinking as claimed in claim 1, characterized in that: It also includes a control system. A plurality of camera devices are arranged on the outer ground of the caisson sinking pit, which are used to collect image information at the junction of the horizontal scales and the vertical benchmarks corresponding to the plurality of monitoring units and transmit the image information to the control system. The control system obtains the caisson sinking height monitored by each monitoring unit based on the acquired image information.

5. The device for monitoring the inclination of a large caisson during sinking as claimed in claim 4, characterized in that: The inner wall of the annular collar is provided with a plurality of sensors. When the vertical pole tilts to a set angle as the caisson sinks, it contacts the sensor and sends a signal to the control system through the sensor. The control system receives the signal and displays an abnormality.

6. The device for monitoring the inclination of a large caisson during sinking as claimed in claim 1, characterized in that: The vertical marker rod is fixedly connected to the outer wall of the caisson through an auxiliary component. The auxiliary component is fixed to the outer wall of the caisson and protrudes outside the caisson. The vertical marker rod and the auxiliary component are connected as a whole.

Images