CN214883947U

CN214883947U - Composite foundation resistance to compression static load test device

Info

Publication number: CN214883947U
Application number: CN202121848121.3U
Authority: CN
Inventors: 刘武林; 俞永林; 孙运甫; 李玉明
Original assignee: Yunnan Zhengyu Engineering Quality Inspection Co ltd
Current assignee: Yunnan Zhengyu Engineering Quality Inspection Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-11-26
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a composite foundation compression resistance static load test device, which comprises a foundation pit, wherein the foundation pit is arranged at the bottom of the ground, a reference pile is embedded at the bottom end of the foundation pit, a connecting plate is fixedly arranged at the top end of a jack, a main beam is movably arranged at the top end of the connecting plate, a secondary beam is clamped at the top end of a primary beam, support frames are clamped at the left side and the right side of the bottom end of the primary beam, and the support frames are arranged on the ground at the top end edge of the foundation pit; all be equipped with displacement detection device around the benchmark stake and in being located the foundation ditch, displacement detection device includes vertical pole, horizontal pole and displacement sensor body, and the support column has all been welded at both ends around the vertical pole, and the other end of first screw rod passes through the bearing to be connected with the other end rotation of vertical pole, and the horizontal pole has been cup jointed to the screw thread on the outer wall of first screw rod, and the movable plate has been cup jointed to the screw thread on the outer wall of second screw rod, and a lateral wall welding of movable plate has adjusted the pole, the utility model discloses stability is high, reduces detection error, and is safer, improves detection efficiency.

Description

Composite foundation resistance to compression static load test device

Technical Field

The utility model relates to a resistance to compression static load test technical field, in particular to composite foundation resistance to compression static load test device.

Background

The static load test is a test method which respectively applies axial pressure and axial uplift force on the pile top step by step or applies horizontal force at the position where the elevation of the bottom surface of a pile foundation bearing platform is consistent according to the using function of the pile, observes the settlement, uplift displacement or horizontal displacement generated by corresponding detection points of the pile along with time, and judges the corresponding vertical compression bearing capacity of the single pile, the vertical uplift bearing capacity of the single pile or the horizontal bearing capacity of the single pile according to the relation between load and displacement.

At present in the compound ground resistance to compression static test process, the accepting table of placing the balancing weight is generally piled up by the staff scene, takes place to become flexible easily for the testing result has the error, and the displacement sensor rigidity in the resistance to compression static test device needs the staff to carry out many times adjustment, and the not hard up of balancing weight causes harm, reduction detection efficiency to the staff easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a compound ground resistance to compression static load test device can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a composite foundation compression resistance static load test device comprises a foundation pit, wherein the foundation pit is arranged at the bottom of the ground, a reference pile is embedded at the bottom end of the foundation pit, a jack is fixedly installed at the top end of the reference pile, a connecting plate is fixedly installed at the top end of the jack, a main beam is movably placed at the top end of the connecting plate, a first secondary beam is clamped at the top end of the main beam, a second secondary beam is clamped at the top end of the first secondary beam, support frames are clamped at the left side and the right side of the bottom end of the first secondary beam, and the support frames are arranged on the ground at the edge of the top end of the foundation pit;

displacement detection devices are arranged around the reference pile and in the foundation pit and comprise longitudinal rods, transverse rods and displacement sensor bodies, supporting columns are welded at the front end and the rear end of each longitudinal rod, a first servo motor is riveted at one end inside each longitudinal rod, the output end of each first servo motor is fixedly connected with a first screw rod through a speed reducer, the other end of each first screw rod is rotatably connected with the other end of each longitudinal rod through a bearing, the transverse rods are sleeved on the outer walls of the first screw rods in a threaded manner, a second servo motor is riveted at one end inside each transverse rod, the output end of each second servo motor is fixedly connected with a second screw rod through a speed reducer, the other end of each second screw rod is rotatably connected with the other end of each transverse rod through a bearing, a movable plate is sleeved on the outer walls of the second screw rods in a threaded manner, and an adjusting rod is welded on one side wall of the movable plate, the other end of the adjusting rod extends to the outside of the cross rod and is fixedly connected with the mounting seat.

Preferably, the main beam, the support frame, the primary beam and the secondary beam are all provided with matched clamping grooves.

Preferably, the bottom welding of support column has the base, the top left and right sides of base passes through the middle part fixed connection of bracing piece and support column.

Preferably, cement terraces are laid at the joint of the support frame and the ground and at the joint of the base and the foundation pit, and the base is fixedly connected with the cement terraces through bolts.

Preferably, the side wall of the longitudinal rod is provided with a limiting channel matched with the transverse rod.

Preferably, one end of the cross rod is connected with the inner wall of the longitudinal rod in a sliding manner; the moving plate is connected with the inner wall of the cross rod in a sliding manner; the cross rod is provided with a through hole matched with the adjusting rod.

Preferably, the spring has all been welded to the inner wall left and right sides of mount pad, the other end welding of spring has splint, fixed mounting has the telescopic link between splint and the mount pad, the telescopic link cup joints with the spring activity.

Preferably, the splint are provided with two sets, and the displacement sensor body is clamped between the two sets of splints.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model relates to a composite foundation resistance to compression static load test device, when using, through the setting of girder, support frame, first roof beam and second roof beam, make each other block, form the bearing platform, improve the overall stability, avoid the balancing weight to take place when overlapping and rock and influence the testing result, place the displacement sensor body between two sets of splint, drive the splint to press from both sides tight displacement sensor body under the elasticity recovery effect of spring, detect the displacement data of benchmark stake through the displacement sensor body, start through first servo motor and drive the horizontal pole along the inner wall of vertical pole forward or backward move, start through second servo motor and drive the regulation pole along the horizontal pole left or right move, thereby drive the displacement sensor body and carry out the adjustment of different positions, can detect the displacement of the different positions on the top of benchmark stake, avoid manual adjustment, the safety is higher, obtains multiunit testing data and compares to improve the accuracy of testing result, improve detection efficiency.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the internal structure of the vertical and horizontal rods of the present invention;

FIG. 3 is a perspective view of the connection mode of the vertical bar and the horizontal bar of the present invention;

fig. 4 is a perspective view of the connection mode of the first secondary beam and the second secondary beam of the present invention.

In the figure: 1. a foundation pit; 2. a reference pile; 3. a jack; 301. a connecting plate; 4. a main beam; 401. a support frame; 402. a first secondary beam; 403. a second secondary beam; 5. a cement floor; 6. a longitudinal bar; 7. a first servo motor; 8. a first screw; 9. a cross bar; 10. a support pillar; 11. a support bar; 12. a base; 13. a second servo motor; 14. a second screw; 15. moving the plate; 16. adjusting a rod; 17. a mounting seat; 18. a splint; 19. a spring; 20. a displacement sensor body.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1, 2, 3 and 4, a composite foundation compression resistance static load test device comprises a foundation pit 1, wherein the foundation pit 1 is arranged at the bottom of the ground, a reference pile 2 is buried at the bottom end of the foundation pit 1, a jack 3 is fixedly arranged at the top end of the reference pile 2, a connecting plate 301 is fixedly arranged at the top end of the jack 3, a main beam 4 is movably arranged at the top end of the connecting plate 301, a first secondary beam 402 is clamped at the top end of the main beam 4, a second secondary beam 403 is clamped at the top end of the first secondary beam 402, supporting frames 401 are clamped at the left side and the right side of the bottom end of the first secondary beam 402, and the supporting frames 401 are arranged on the ground at the edge of the top end of the foundation pit 1;

the periphery of the reference pile 2 and positioned in the foundation pit 1 are all provided with displacement detection devices, each displacement detection device comprises a longitudinal rod 6, a cross rod 9 and a displacement sensor body 20, support columns 10 are welded at the front end and the rear end of each longitudinal rod 6, a first servo motor 7 is riveted at one end inside each longitudinal rod 6, the output end of each first servo motor 7 is fixedly connected with a first screw rod 8 through a speed reducer, the other end of each first screw rod 8 is rotatably connected with the other end of each longitudinal rod 6 through a bearing, the cross rod 9 is sleeved on the outer wall of each first screw rod 8 in a threaded manner, a second servo motor 13 is riveted at one end inside each cross rod 9, the output end of each second servo motor 13 is fixedly connected with a second screw rod 14 through a speed reducer, the other end of each second screw rod 14 is rotatably connected with the other end of each cross rod 9 through a bearing, a movable plate 15 is sleeved on the outer wall of each second screw rod 14 in a threaded manner, and an adjusting rod 16 is welded on one side wall of each movable plate 15, the other end of the adjusting rod 16 extends to the outside of the cross rod 9 and is fixedly connected with the mounting seat 17.

Referring to fig. 1 and 4, the main beam 4, the supporting frame 401, the first secondary beam 402, and the second secondary beam 403 are all provided with matching slots for facilitating mutual engagement to form a receiving platform, thereby increasing overall stability and preventing the balancing weight from shaking to affect the detection result.

Referring to fig. 2 and 3, a base 12 is welded to the bottom end of the supporting column 10, and the left and right sides of the top end of the base 12 are fixedly connected to the middle of the supporting column 10 through a supporting rod 11, so as to increase the stability of the supporting column 10.

Referring to fig. 1, 3 and 4, cement terraces 5 are laid at the joints of the support frames 401 and the ground and the joints of the base 12 and the foundation pit 1, and the base 12 is fixedly connected with the cement terraces 5 through bolts to increase the stability between the base and the ground.

The side wall of the vertical rod 6 is provided with a limit channel matched with the cross rod 9.

Referring to fig. 2, preferably, one end of the cross bar 9 is slidably connected to the inner wall of the longitudinal bar 6; the moving plate 15 is connected with the inner wall of the cross rod 9 in a sliding way; the cross rod 9 is provided with a through hole matched with the adjusting rod 16, so that the cross rod 9 and the adjusting rod 16 can move stably and stably in a balanced manner.

Referring to fig. 2, springs 19 are welded on the left and right sides of the inner wall of the mounting seat 17, a clamping plate 18 is welded on the other end of the spring 19, an expansion link is fixedly installed between the clamping plate 18 and the mounting seat 17, and the expansion link is movably sleeved with the spring 19.

Referring to fig. 1, two sets of clamping plates 18 are provided, and a displacement sensor body 20 is clamped between the two sets of clamping plates 18, so as to detect the sinking distance of the reference pile 2.

It should be noted that, the utility model relates to a composite foundation resistance to compression static load test device, when using, through the setting of girder 4, support frame 401, first secondary beam 402 and second secondary beam 403, make mutual block, form the bearing platform, place the balancing weight on the bearing platform one by one according to the detection needs, the setting of bearing platform improves the overall stability, avoid the balancing weight to rock when overlapping and influence the testing result, press splint 18 and make spring 19 compressed, place displacement sensor body 20 between two sets of splint 18, drive splint 18 to press from both sides tight displacement sensor body 20 under the elasticity recovery of spring 19, the detection head of displacement sensor body 20 corresponds with the top of benchmark stake 2, start through controller control first servo motor 7 and drive first screw rod 8 to rotate, make horizontal pole 9 move forward or backward along the inner wall of vertical pole 6, the second servo motor 13 is controlled to be started through the controller to drive the second screw rod 14 to rotate, the movable plate 15 moves leftwards or rightwards along the inner wall of the cross rod 9, the adjusting rod 16 is driven to move leftwards or rightwards along the cross rod 9, the displacement sensor body 20 is driven to adjust different positions, the displacements of different positions on the top end of the reference pile 2 can be detected, manual adjustment is avoided, safety is high, multiple groups of detection data are obtained, and accuracy of detection results is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a compound ground resistance to compression static test device, includes foundation ditch (1), its characterized in that: the foundation pit (1) is arranged at the bottom of the ground, a reference pile (2) is buried at the bottom end of the foundation pit (1), a jack (3) is fixedly mounted at the top end of the reference pile (2), a connecting plate (301) is fixedly mounted at the top end of the jack (3), a main beam (4) is movably placed at the top end of the connecting plate (301), a first secondary beam (402) is clamped at the top end of the main beam (4), a second secondary beam (403) is clamped at the top end of the first secondary beam (402), supporting frames (401) are clamped at the left side and the right side of the bottom end of the first secondary beam (402), and the supporting frames (401) are arranged on the ground at the edge of the top end of the foundation pit (1);

displacement detection devices are arranged on the periphery of the reference pile (2) and in the foundation pit (1), each displacement detection device comprises a longitudinal rod (6), a transverse rod (9) and a displacement sensor body (20), support columns (10) are welded at the front end and the rear end of each longitudinal rod (6), a first servo motor (7) is riveted at one end of the inner portion of each longitudinal rod (6), the output end of each first servo motor (7) is fixedly connected with a first screw rod (8) through a speed reducer, the other end of each first screw rod (8) is rotatably connected with the other end of each longitudinal rod (6) through a bearing, the transverse rod (9) is sleeved on the outer wall of each first screw rod (8) in a threaded manner, a second servo motor (13) is riveted at one end of the inner portion of each transverse rod (9), and the output end of each second servo motor (13) is fixedly connected with a second screw rod (14) through a speed reducer, the other end of the second screw rod (14) is rotatably connected with the other end of the cross rod (9) through a bearing, a movable plate (15) is sleeved on the outer wall of the second screw rod (14) in a threaded manner, an adjusting rod (16) is welded on one side wall of the movable plate (15), and the other end of the adjusting rod (16) extends to the outside of the cross rod (9) and is fixedly connected with the mounting seat (17).

2. The composite foundation compression static load test device of claim 1, characterized in that: the main beam (4), the support frame (401), the first secondary beam (402) and the second secondary beam (403) are all provided with matched clamping grooves.

3. The composite foundation compression static load test device of claim 1, characterized in that: the bottom welding of support column (10) has base (12), the middle part fixed connection of bracing piece (11) and support column (10) is passed through to the top left and right sides of base (12).

4. The composite foundation compression static load test device of claim 3, characterized in that: support frame (401) and the junction on ground and base (12) and foundation ditch (1) junction have all laid cement terrace (5), base (12) pass through bolt and cement terrace (5) fixed connection.

5. The composite foundation compression static load test device of claim 1, characterized in that: and the side wall of the longitudinal rod (6) is provided with a limiting channel matched with the transverse rod (9).

6. The composite foundation compression static load test device of claim 1, characterized in that: one end of the cross rod (9) is connected with the inner wall of the longitudinal rod (6) in a sliding manner; the moving plate (15) is connected with the inner wall of the cross rod (9) in a sliding manner; the cross rod (9) is provided with a through hole matched with the adjusting rod (16).

7. The composite foundation compression static load test device of claim 1, characterized in that: spring (19) have all been welded to the inner wall left and right sides of mount pad (17), the other end welding of spring (19) has splint (18), fixed mounting has the telescopic link between splint (18) and mount pad (17), the telescopic link cup joints with spring (19) activity.

8. The composite foundation compression static load test device of claim 7, characterized in that: the clamp plates (18) are provided with two groups, and a displacement sensor body (20) is clamped between the two groups of clamp plates (18).