CN210893037U - Pile foundation displacement monitoring device - Google Patents

Abstract

The utility model discloses a pile foundation displacement monitoring devices, including bottom plate, equipment box and adjustable shelf are installed on the bottom plate, and the adjustable shelf is installed in one side of equipment box, the adjustable shelf includes first fixed column, second fixed column, flexible hinge, carriage and puts the thing board, and first fixed column and second fixed column are installed on the lateral wall of equipment box, and one side that equipment box was kept away from to first fixed column and second fixed column is connected with flexible hinge, and flexible hinge one side is equipped with the carriage, be equipped with first surface strain gauge on the carriage, be equipped with between first fixed column and the second fixed column and put the thing board. The utility model discloses a set up equipment box and adjustable shelf on the bottom plate, can conveniently lay accessories such as sensor at the job site to reduce the operation degree of difficulty of laying the sensor, still can make things convenient for pile foundation displacement monitoring devices's removal simultaneously.

Description

Pile foundation displacement monitoring device

Technical Field

The utility model relates to a construction monitoring facilities field especially relates to a pile foundation displacement monitoring devices.

Background

With the rapid development of Chinese economy, the cast-in-place pile foundation is widely applied to large projects such as city construction, highway construction and the like, the existing cast-in-place pile excavation equipment is a rotary drilling rig, and a rotary drilling brick machine is provided with an independent telescopic drill rod, so that accurate vertical measurement can be realized. The bored concrete pile can produce the disturbance when the excavation, if the disturbance exceeds certain frequency after, will cause the destruction to peripheral soil body and building, can endanger people's life and property safety even, in the face of this kind of condition, need carry out the perturbation monitoring technology in the work progress and can control the influence in certain extent.

The existing method for excavating the cast-in-place pile is to arrange sensors around an excavation point generally, and judge whether the cast-in-place pile is safe during processing according to data fed back by a plurality of sensors. The existing sensors are required to be arranged by professional personnel, and because the number of the cast-in-place piles is large, monitoring points are required to be continuously replaced when the sensors are arranged, so that the influence of the excavation of the cast-in-place piles on peripheral soil bodies, buildings and the like can be monitored in real time.

Disclosure of Invention

An object of the utility model is to provide a can arrange pile foundation displacement monitoring devices at bored concrete pile excavation point fast.

The utility model aims at realizing through the following technical scheme:

a pile foundation displacement monitoring device comprises a bottom plate, an equipment box and a movable frame, wherein the equipment box and the movable frame are arranged on the bottom plate, and the movable frame is arranged at one side of the equipment box and comprises a first fixed column, a second fixed column, a telescopic hinge, a supporting frame and an object placing plate, the first fixing column and the second fixing column are symmetrically arranged on the side wall of the equipment box, one sides of the first fixing column and the second fixing column, which are far away from the equipment box, are connected with telescopic hinges, one sides of the telescopic hinges, which are far away from the first fixing column and the second fixing column, are provided with supporting frames, the bottom of each supporting frame is provided with a spring caster, a first surface strain gauge which is vertically arranged is arranged on the supporting frame, a vertical object placing plate is arranged at a gap between the first fixing column and the second fixing column, and clamping grooves matched with the first fixing columns, the second fixing columns and the top of the supporting frame are processed on the bottom surface of the object placing plate.

The bottom of bottom plate is equipped with the universal wheel, and the bottom plate both ends are equipped with the second surface strain gauge and the third surface strain gauge of vertical setting respectively.

First surface strain meter, second surface strain meter and third surface strain meter all are connected with the balancing stand, and every balancing stand includes the fixed block, the activity is fast and two parallel and the bracing pieces that length equals, and two bracing piece one end all are articulated with the fixed block, and the other end all is articulated with the movable block, and first surface strain meter, second surface strain meter and third surface strain meter are installed respectively on the movable block that corresponds.

The bottom of the equipment box is provided with a detachable storage battery, the equipment box above the storage battery is provided with a plurality of horizontally arranged drawers, and measuring equipment for detecting pile foundation displacement is installed in the drawers.

The top of the equipment box is provided with a controller which is used for connecting the measuring equipment for monitoring the displacement of the pile foundation with the controller, and the controller is also connected with an audible and visual alarm.

The controller is connected with the first surface strain gauge, the second surface strain gauge and the third surface strain gauge through a plurality of signal transmission cables.

The utility model discloses has following effect:

(1) the equipment box and the movable frame are arranged on the bottom plate, so that the parts such as the sensors and the like can be conveniently arranged on a construction site, the operation difficulty of arranging the sensors is reduced, the movement of the pile foundation displacement monitoring device can be facilitated, the preparation time of the cast-in-place pile excavation is shortened, and the cast-in-place pile excavation efficiency is improved;

(2) by arranging the telescopic hinges, the movable frame can be unfolded, so that the floor area of the equipment is increased, the stability of the equipment is improved, and the measurement accuracy can be improved;

(3) the detection equipment can be conveniently arranged on the bottom surface by arranging the balance frame, and meanwhile, because the first surface strain gauge, the second surface strain gauge and the third surface strain gauge are respectively arranged on the balance frame, the distances among the plurality of surface strain gauges can be increased, the detection range is enlarged, and more accurate data reference is provided for excavation of the cast-in-place pile;

(4) the equipment box is provided with a plurality of drawers for placing the measuring equipment, so that the measuring parameters of the pile foundation displacement monitoring device can be increased to meet various parameters of the cast-in-place pile during excavation;

(5) the controller is arranged on the equipment box and connected with the audible and visual alarm, so that the alarm can be given in time after potential safety hazards are detected during the excavation of the cast-in-place pile, workers are reminded to stop construction, and safety accidents are avoided;

(6) is convenient to move and use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the present invention.

Reference numerals: 1. a base plate; 11. a universal wheel; 2. an equipment box; 21. a storage battery; 22. a drawer; 3. a movable frame; 31. a first fixed column; 32. a second fixed column; 33. a telescopic hinge; 34. a support frame; 35. a storage plate; 36. a card slot; 37. a spring caster; 4. a first surface strain gauge; 5. a second surface strain gauge; 6. a third surface strain gauge; 7. a balancing stand; 71. a support bar; 72. a fixed block; 73. a movable block; 8. a controller; 9. an audible and visual alarm.

Detailed Description

Examples

As shown in fig. 1 and 2, the pile foundation displacement monitoring device provided in this embodiment includes a bottom plate 1, an equipment box 2, and a movable frame 3, a universal wheel 11 is disposed at the bottom of the bottom plate 1, the equipment box 2 and the movable frame 3 are mounted on the bottom plate 1, the movable frame 3 is mounted on a side wall of one side of the equipment box 2, and the height of the movable frame 3 is lower than that of the equipment box 2, the movable frame 3 includes a first fixed column 31, a second fixed column 32, a telescopic hinge 33, a supporting frame 34, and an object placing plate 35, the first fixed column 31 and the second fixed column 32 are symmetrically mounted on the side wall of the equipment box 2, the telescopic hinges 33 are connected to sides of the first fixed column 31 and the second fixed column 32 away from the equipment box 2, the supporting frame 34 is disposed on a side of the telescopic hinges 33 away from the first fixed column 31 and the second fixed column 32, a spring caster 37 is disposed at the bottom of the supporting frame 34, the vertical object placing plate 35 is disposed at, and a clamping groove 36 matched with the tops of the first fixing column 31, the second fixing column 32 and the supporting frame 34 is processed on the bottom surface of the object placing plate 35. A first surface strain gauge 4 which is vertically arranged is arranged on the supporting frame 34, and a second surface strain gauge 5 and a third surface strain gauge 6 which are vertically arranged are respectively arranged at two ends of the bottom plate 1; first surface strain gauge 4, second surface strain gauge 5 and third surface strain gauge 6 all are connected with gimbal 7, every gimbal 7 includes fixed block 72, adjustable shelf 3 and two parallel and length equal bracing pieces 71, two bracing pieces 71 one end all are articulated with fixed block 72, the other end all is articulated with movable block 73, the length of two bracing pieces 71 equals can guarantee that the working face that fixed block 72 and movable block 73 correspond keeps parallel, first surface strain gauge 4, second surface strain gauge 5 and third surface strain gauge 6 install respectively on the movable block 73 that corresponds, through gimbal 7 with make first surface strain gauge 4, the probe of second surface strain gauge 5 and third surface strain gauge 6 keeps vertical downwards all the time.

2 bottoms of equipment box are equipped with detachable battery 21, and the equipment box 2 of battery 21 top is equipped with the drawer 22 that a plurality of levels set up, is equipped with the measuring equipment who is used for detecting the pile foundation displacement in proper order in a plurality of drawers 22, like laser range finder, vibration sensor etc.. 2 tops of equipment box are equipped with controller 8, then the measuring equipment that will monitor the pile foundation displacement is connected with controller 8, controller 8 is connected with first surface strainometer 4, second surface strainometer 5 and third surface strainometer 6 respectively through many signal transmission cables, controller 8 adopts PLC controller 8 commonly used, it is safe whether the excavation of data judgement bored concrete pile is carried out to the alarm value of pile foundation monitoring in advance in PLC controller 8, while controller 8 still is connected with audible-visual annunciator 9, after the numerical value of measuring equipment monitoring surpassed the default, report to the police through audible-visual annunciator 9.

The utility model discloses a use method is:

placing a plurality of devices for detecting pile foundations in a drawer 22 on an equipment frame, installing a plurality of strain gauges on a movable block 73 of a balance frame 7, then installing a plurality of pile foundation displacement monitoring devices around an excavation point of a cast-in-place pile, when the pile foundation displacement monitoring devices are used, firstly dragging a support frame 34 to pull out a telescopic hinge 33, enabling spring casters 37 at the bottom of the support frame 34 to be in contact with the ground, then drawing an object placing plate 35 out of a gap between a first fixed column 31 and a second fixed column 32, then placing the object placing plate 35 on the tops of the first fixed column 31, the second fixed column 32 and the support frame 34, taking the object placing plate 35 as a table, being used for placing other large-scale monitoring devices or drawings used for the cast-in-place pile, and then rotating around the fixed block 72 fast to enable a first surface strain gauge 4, a second surface strain gauge 5 and a third surface strain gauge 6 which are installed on the plurality of fast-moving parts to be in, the method is used for monitoring the influences, such as soil loosening, vibration and the like, on the ground when the cast-in-place pile is excavated. When the cast-in-place pile is excavated by the rotary drilling rig, data fed back to the controller 8 by the first surface strain gauge 4, the second surface strain gauge 5 and the third surface strain gauge 6 are compared with preset data of the controller 8, if the data fed back to the controller 8 by the first surface strain gauge 4, the second surface strain gauge 5 and the third surface strain gauge 6 exceeds the preset data, the controller 8 gives an alarm by the audible and visual alarm 9 for reminding constructors to detect or reformulate a construction scheme, and the damage to surrounding soil and buildings caused by disturbance generated when the cast-in-place pile is excavated is avoided.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a pile foundation displacement monitoring devices which characterized in that: including bottom plate, equipment box and adjustable shelf are installed on the bottom plate, and the adjustable shelf installs the one side at the equipment box, the adjustable shelf includes first fixed column, second fixed column, flexible hinge, carriage and puts the thing board, first fixed column and second fixed column symmetry are installed on the lateral wall of equipment box, and one side that the equipment box was kept away from to first fixed column and second fixed column is connected with flexible hinge, and one side that first fixed column and second fixed column were kept away from to flexible hinge is equipped with the carriage, and the carriage bottom is equipped with the spring truckle, be equipped with the first surface strainometer of vertical setting on the carriage, clearance department between first fixed column and the second fixed column is equipped with vertical thing board of putting, it has the draw-in groove with first fixed column, second fixed column and carriage top matched with to put processing on the bottom surface of thing board.

2. The pile foundation displacement monitoring device of claim 1, wherein: the bottom of bottom plate is equipped with the universal wheel, and the bottom plate both ends are equipped with the second surface strain gauge and the third surface strain gauge of vertical setting respectively.

3. The pile foundation displacement monitoring device of claim 2, wherein: first surface strain meter, second surface strain meter and third surface strain meter all are connected with the balancing stand, and every balancing stand includes the fixed block, the activity is fast and two parallel and the bracing pieces that length equals, and two bracing piece one end all are articulated with the fixed block, and the other end all is articulated with the movable block, and first surface strain meter, second surface strain meter and third surface strain meter are installed respectively on the movable block that corresponds.

4. The pile foundation displacement monitoring device of claim 3, wherein: the bottom of the equipment box is provided with a detachable storage battery, the equipment box above the storage battery is provided with a plurality of horizontally arranged drawers, and measuring equipment for detecting pile foundation displacement is installed in the drawers.

5. The pile foundation displacement monitoring device of claim 3, wherein: the top of the equipment box is provided with a controller which is used for connecting the measuring equipment for monitoring the displacement of the pile foundation with the controller, and the controller is also connected with an audible and visual alarm.

6. The pile foundation displacement monitoring device of claim 5, wherein: the controller is connected with the first surface strain gauge, the second surface strain gauge and the third surface strain gauge through a plurality of signal transmission cables.

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