Pipeline foundation pit slope excavation slope ratio control device

Abstract

The invention relates to a foundation pit excavation auxiliary measuring device, in particular to a pipeline foundation pit slope excavation slope ratio control device which comprises a horizontal pedestal, a holder balancing device, a crawler walking system, a counterweight assembly, a parallel lifting mechanism, a measuring clamping plate strip device and a measuring auxiliary tool. A soil shoveling plate used for pushing and removing falling soil is arranged on the lower side of the front portion of the crawler walking system, a front hinged support is arranged at the left end of the horizontal pedestal, a counterweight assembly is arranged at the right end of the horizontal pedestal, the parallel lifting mechanism is rotationally connected with the horizontal pedestal through the front hinged support, and a first rope control device is fixedly installed on the upper portion of the horizontal pedestal. According to the invention, direct measurement of the slope angle is changed into indirect measurement, the operation is easier, and large measurement errors caused by different compaction degrees of soil are avoided.

Description

Technical Field

[0001] The invention relates to a foundation pit excavation auxiliary measurement device, in particular to a pipeline foundation pit side slope excavation slope ratio control device. Background Art

[0002] The length of pipelines in water resource allocation construction projects usually reaches tens of kilometers. The main method of slope excavation is used during construction. The earthwork excavation project is huge. According to the design requirements, the excavation depth and bottom width of the foundation pit need to be controlled within a certain range. The special foundation pit slope design is excavated at 1:1.5 on the left and 1:2 on the right. During the inspection of the trenches during the excavation process at the construction site, it was found that after the surveyors laid the lines during the excavation process, the construction management personnel lacked real-time control tools for on-site command. The slope excavation easily became a steep slope and could not reach the design index of the slope ratio of 1:2 and other sections. It often takes time to re-rectify and repair the slope. In the traditional method, full-time surveyors and auxiliary workers are equipped during the trench excavation process at each work point, and GPS real-time positioning is used for control. However, the construction line is long, there are many work points in the work area, a large number of surveyors are required, and the foundation pit depth is too high. There are safety hazards in long-term process inspections on the slope, which is not suitable for long-distance deep foundation pit slope excavation control methods.

[0003] Therefore, in order to speed up the progress of foundation pit excavation construction, ensure the safety of slope operations and the quality of trench excavation, a pipeline foundation pit slope excavation slope ratio control device is needed, which is simple to operate and easy to move and can directly control the slope ratio at any time during the construction process, so as to meet the needs of long-distance deep foundation pit slope excavation control. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pipeline foundation pit side slope excavation slope ratio control device in view of the deficiencies of the prior art.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention discloses a slope ratio control device for excavation of a pipeline foundation pit slope, including a horizontal platform seat, a pan-tilt balance device, a crawler walking system, a counterweight assembly, a parallel lifting mechanism, a measuring clamp strip device and a measuring auxiliary tool. The horizontal platform seat is installed on the crawler walking system through the pan-tilt balance device. A shovel plate for pushing away fallen soil is provided on the lower front side of the crawler walking system. A front hinge seat is provided at the left end of the horizontal platform seat, and a counterweight assembly is provided at the right end of the horizontal platform seat. The parallel lifting mechanism is rotatably connected to the horizontal platform seat through the front hinge seat. A first rope control device is fixedly installed on the upper part of the horizontal platform seat. The first rope control device is used to bolt the parallel lifting mechanism to control and generate the slope ratio angle. The measuring clamp strip device is fixedly installed at the outer end of the parallel lifting mechanism for contact measurement with the measuring auxiliary tool.

[0006] The technical problem to be solved by the present invention can also be further achieved through the following technical scheme, the parallel lifting mechanism includes parallel and opposite directional lifting plates and lowering parallel plates, a pair of parallel deflection suspension rods are hinged between the directional lifting plate and the lowering parallel plate, a rope ring connected to the first rope control device is provided in the middle part of the upper side of the directional lifting plate, a second rope control device is provided in the middle part of the lower side of the directional lifting plate, and a rope ring connected to the second rope control device is provided at the bottom of the upper side of the lowering parallel plate.

[0007] The technical problem to be solved by the present invention can be further achieved by the following technical solution: the first rope-controlled device and the second rope-controlled device both include a reduction motor and a drum, and the reduction motor is connected to a brake device.

[0008] The technical problem to be solved by the present invention can be further achieved through the following technical solution: the reduction motor and the drum of the first rope control device are installed on the upper part of the horizontal platform seat through an H-shaped bracket, and the height of the H-shaped bracket corresponds to the rope ring on the directional lifting plate.

[0009] The technical problem to be solved by the present invention can also be further achieved through the following technical scheme: the measuring clamping strip device includes a measuring mother strip and an attached sub-strip, a deflection axis is provided at the lower end of the measuring mother strip, and the lower end of the attached sub-strip is rotatably connected to the measuring mother strip through the deflection axis; the measuring mother strip is fixedly mounted at the end of the parallel lifting mechanism, and the upper and lower ends of the inner side of the measuring mother strip are embedded with infrared ranging devices pointing to the attached sub-strip.

[0010] The technical problem to be solved by the present invention can also be further achieved through the following technical solution: an attachment magnet for adsorbing the measuring aid is provided on the outer side of the attached sub-strip, and a floating tension spring is connected between the upper part of the measuring mother strip and the upper part of the attached sub-strip.

[0011] The technical problem to be solved by the present invention can also be further achieved through the following technical scheme, the measuring aid includes a square frame and a docking strip, the four legs of the square frame are provided with a nail plate body, the lower part of the nail plate body is provided with a pin for being inserted into the soil of the foundation pit slope, the docking strip is fixed at the symmetrical center line of the square frame, and a center convex strip is provided on the upper side of the docking strip along the length direction, and the center convex strip is used to fit in parallel with the attached sub-strip.

[0012] The technical problem to be solved by the present invention can be further achieved through the following technical solutions: the measuring aid includes a drone auxiliary system, the end of the docking strip is provided with a lifting ring, the drone auxiliary system can be hoisted into a square frame through the lifting ring, the drone auxiliary system is provided with an observation system and a landing platform, and the landing platform is arranged on a horizontal platform seat.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] (1) The present invention changes the direct measurement of the slope angle to indirect measurement, which is easier to operate and avoids large measurement errors caused by different soil compaction levels;

[0015] (2) The slope ruler used in the present invention can be used in conjunction with a measuring aid to achieve contact measurement. Without manual observation, it is possible to determine whether the slope ratio of the foundation pit slope is within the allowable error range, and to timely control the slope ratio parameters of the foundation pit excavation slope;

[0016] (3) The walking device used in the present invention can perform continuous measurement along with the excavation process without the need for long-term manual lifting, thereby reducing the complexity of the operation and improving the safety of the slope ratio measurement of the foundation pit slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the measuring clamping strip device 6 of the present invention;

[0019] Figure 3 1 is a schematic diagram of the structure of the measuring aid 7 of the present invention from a top view;

[0020] 1-horizontal platform seat, 11-front hinge seat, 12-first rope control device, 2-pan head balancing device, 3-crawler walking system, 31-shovel board, 4-counterweight assembly, 5-parallel lifting mechanism, 51-second rope control device, 52-directional lifting plate, 53-lowering parallel plate, 54-deflection suspension rod, 6-measuring clamping strip device, 61-measuring mother strip, 62-attached sub-strip, 621-attached magnet, 63-infrared ranging device, 64-floating tension spring, 7-measuring auxiliary tool, 71-square frame, 711-nail plate body, 72-jointing strip, 721-center convex strip, 722-lifting ring. DETAILED DESCRIPTION

[0021] like Figure 1-3As shown, a slope ratio control device for excavation of a side slope of a pipeline foundation pit of the present invention comprises a horizontal platform seat 1, a pan-tilt balance device 2, a crawler walking system 3, a counterweight assembly 4, a parallel hanging mechanism 5, a measuring clamping plate device 6 and a measuring auxiliary tool 7. The horizontal platform seat 1 is installed on the crawler walking system 3 through the pan-tilt balance device 2. The crawler walking system 3 is provided with a shovel board 31 for pushing away fallen soil at the lower front side. The left end of the horizontal platform seat 1 is provided with a front hinge seat 11. The right end of the horizontal platform seat 1 is provided with a counterweight assembly 4. The parallel hanging mechanism 5, a measuring clamping plate device 6 and a measuring auxiliary tool 7 are provided. The mechanism 5 is rotatably connected to the horizontal platform seat 1 through the front hinge seat 11. Specifically, the parallel lifting mechanism 5 includes a parallel and opposite directional lifting plate 52 and a lowering parallel plate 53. A pair of parallel deflection suspension rods 54 are hinged between the directional lifting plate 52 and the lowering parallel plate 53. A rope ring connected to the first rope control device 12 is provided in the middle of the upper side of the directional lifting plate 52, and a second rope control device 51 is provided in the middle of the lower side of the directional lifting plate 52. A rope ring connected to the second rope control device 51 is provided at the bottom of the upper side of the lowering parallel plate 53. The first rope control device 12 and the second rope control device 51 both include a reduction motor and a drum, and the reduction motor is connected to a brake device. The reduction motor and the drum of the first rope control device 12 are installed on the upper part of the horizontal platform seat 1 through an H-shaped bracket, and the height of the H-shaped bracket corresponds to the rope ring on the directional lifting plate 52. The present invention can set the ratio of 1:2 or 1:1.5 by the number of rotations of the cylinder through the first rope control device 12, without the need for an additional fixed pool. The control method is ingenious, fully utilizing the weight relationship of each part of the structure, and can be folded and stored. The second rope control device 51 of the present invention can not only realize the transmission of angle posture information through the parallel device, but also realize automatic lowering and fitting at the same time, without the need for an additional electric extrapolation device for docking, and docking and fitting from top to bottom. It adapts to the natural morphological characteristics of the foundation pit slope and has a large contact and docking range.

[0022] The first rope control device 12 is fixedly installed on the upper part of the horizontal platform seat 1. The first rope control device 12 is used to be bolted to the parallel hanging mechanism 5 to control the slope ratio angle. The measuring clamp strip device 6 is fixedly installed on the outer end of the parallel hanging mechanism 5 for contact measurement with the measuring auxiliary tool 7. The measuring auxiliary tool 7 includes a square frame 71 and a docking strip 72. The four feet of the square frame 71 are provided with a nail plate body 711. The nail plate body 711 is provided with a nail for inserting into the soil of the foundation pit slope below. The docking strip 72 is fixed at the symmetric center line of the square frame 71. The upper side of the docking strip 72 is provided with a central convex strip 721 along the length direction. The central convex strip 721 is used to parallelly fit with the attached sub-strip 62. The measuring auxiliary tool 7 includes a drone auxiliary system. The end of the docking strip 72 is provided with a lifting ring 722. The drone auxiliary system can be used to lift the square frame 71 through the lifting ring 722. The drone auxiliary system is provided with an observation system and a landing platform. The landing platform is provided on the horizontal platform seat 1. The structure of the present invention can be made of aluminum alloy material to make it lightweight, and the lower structure can be made of steel material to make it stable. The measuring aid 7 of the present invention is used to change direct measurement to indirect measurement, which is equivalent to taking the average slope value of the current position, has high measurement accuracy, high fit, and is easy to operate, avoiding the inconvenience caused by directly measuring the soil surface with different hardness.

[0023] The measuring clamping strip device 6 includes a measuring mother strip 61 and an attached sub-strip 62. The lower end of the measuring mother strip 61 is provided with a deflection shaft, and the lower end of the attached sub-strip 62 is rotatably connected to the measuring mother strip 61 through the deflection shaft. The measuring mother strip 61 is fixedly mounted on the end of the parallel hanging mechanism 5. The upper and lower ends of the inner side of the measuring mother strip 61 are both embedded with an infrared distance measuring device 63 pointing to the attached sub-strip 62. The outer side of the attached sub-strip 62 is provided with an attached magnet 621 for adsorbing the measuring aid 7, and a floating tension spring 64 is connected between the upper part of the measuring mother strip 61 and the upper part of the attached sub-strip 62. In the natural state, the upper opening between the attached sub-slat 62 and the measuring mother-slat 61 makes the gap between the two sides larger on the upper side and smaller on the lower side. The infrared distance measuring device 63 can measure and calculate the gap spacing difference at the given positions on the upper and lower sides. Under ideal conditions, the upper and lower gap spacing difference is calibrated. After calibration, as long as the difference is within a certain numerical range, it indicates that the actual slope ratio presented by the square frame 71 is consistent with the slope ratio set by the directional hoisting plate 52, and no secondary construction and slope repair is required. In actual measurement, since high-precision measurement is not required, the upper and lower ends of the attached sub-slat 62 can be connected to the measuring mother-slat 61 through springs, so that in the natural state, the upper and lower ends of the attached sub-slat 62 are kept in a floating state with the measuring mother-slat 61. After the attached sub-slat 62 is attached to the docking strip 72, the upper and lower gap difference can be measured. The docking difficulty of this method is reduced. Under the above technical enlightenment, those skilled in the art can also perform automatic measurement through other docking methods. The formed technical solutions should be included in the protection scope of the present invention.

[0024] When the construction measurement is actually carried out, the crawler walking system 3 can be controlled to walk by the remote control device. The surveyor can be outside the foundation pit or inside the foundation pit according to the actual situation. The square frame 71 can be hoisted outside the foundation pit by the drone auxiliary system to mark the slope. At the specified position, the pan-tilt balance device 2 is started after the walking stops, so that the horizontal platform seat 1 is in a horizontal state and is not affected by the uneven ground. The first rope control device 12 performs the rope release operation and generates a specified 1:1.5 or 1:2 specified slope ratio. At this time, the overall weight of the parallel hanging mechanism 5 and the measuring clamping plate strip device 6 is borne by the pull rope and the front hinge seat 11 of the first rope control device 12, and the first rope control device 12 is in the rope collection state at this time. The lowering parallel plate 53 is at the highest position, and then the lowering parallel plate 53 is slowly lowered until the attached sub-strip 62 is close to the central convex strip 721, and slowly docked and adsorbed through the attached magnet 621, so that the upper and lower gap differences are measured by the infrared ranging device 63, and the slope ratio meets the requirements automatically. If the slope is too steep, the two slats will be completely closed and need to be re-closed; if the slope is too gentle, the gap difference will be large and exceed the set threshold; when the gap difference is within a certain range, it is displayed as meeting the requirements.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for controlling the slope ratio of a pipeline foundation pit, characterized in that: It includes a horizontal platform seat, a pan-tilt balance device, a crawler travel system, a counterweight assembly, a parallel lifting mechanism, a measuring clamp strip device and a measuring auxiliary tool. The horizontal platform seat is installed on the crawler travel system through the pan-tilt balance device. A shovel plate for pushing away fallen soil is provided on the lower front side of the crawler travel system. A front hinge seat is provided at the left end of the horizontal platform seat, and a counterweight assembly is provided at the right end of the horizontal platform seat. The parallel lifting mechanism is rotatably connected to the horizontal platform seat through the front hinge seat. A first rope control device is fixedly installed on the upper part of the horizontal platform seat. The first rope control device is used to bolt the parallel lifting mechanism to control and generate the slope ratio angle. The measuring clamp strip device is fixedly installed at the outer end of the parallel lifting mechanism for contact measurement with the measuring auxiliary tool.

2. A pipeline foundation pit slope excavation slope ratio control device according to claim 1, characterized in that: The parallel lifting mechanism includes parallel and opposite directional lifting plates and lowering parallel plates, a pair of parallel deflection suspension rods are hinged between the directional lifting plate and the lowering parallel plate, a rope ring connected to a first rope control device is provided in the middle of the upper side of the directional lifting plate, a second rope control device is provided in the middle of the lower side of the directional lifting plate, and a rope ring connected to the second rope control device is provided at the bottom of the upper side of the lowering parallel plate.

3. A pipeline foundation pit slope excavation slope ratio control device according to claim 2, characterized in that: The first rope-controlled device and the second rope-controlled device both include a reduction motor and a drum, and the reduction motor is connected to a brake device.

4. A pipeline foundation pit slope excavation slope ratio control device according to claim 3, characterized in that: The reduction motor and the drum of the first rope control device are installed on the upper part of the horizontal platform seat through an H-shaped bracket, and the height of the H-shaped bracket corresponds to the rope ring on the directional lifting plate.

5. The device for controlling the excavation slope ratio of a pipeline foundation pit according to claim 1, characterized in that: The measuring clamping strip device includes a measuring mother strip and an attached sub-strip. A deflection shaft is provided at the lower end of the measuring mother strip. The lower end of the attached sub-strip is rotatably connected to the measuring mother strip through the deflection shaft. The measuring mother strip is fixedly mounted on the end of the parallel hanging mechanism. The upper and lower ends of the inner side of the measuring mother strip are both embedded with infrared ranging devices pointing to the attached sub-strip.

6. A pipeline foundation pit slope excavation slope ratio control device according to claim 1, characterized in that: An attachment magnet for adsorbing the measuring aid is arranged on the outer side of the attached sub-strip, and a floating tension spring is connected between the upper part of the measuring mother strip and the upper part of the attached sub-strip.

7. A pipeline foundation pit slope excavation slope ratio control device according to claim 1, characterized in that: The measuring aid includes a square frame and a docking strip. The four legs of the square frame are provided with a nail plate body. The lower part of the nail plate body is provided with a nail for inserting into the soil of the foundation pit slope. The docking strip is fixed at the symmetrical center line of the square frame. A center convex strip is provided on the upper side of the docking strip along the length direction. The center convex strip is used to fit in parallel with the attached sub-strip.

8. A pipeline foundation pit side slope excavation slope ratio control device according to claim 7, characterized in that: The measuring aid includes a drone auxiliary system. A lifting ring is provided at the end of the docking strip. The drone auxiliary system can be hoisted into a square frame through the lifting ring. The drone auxiliary system is provided with an observation system and a landing platform. The landing platform is arranged on a horizontal platform seat.

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