CN210002377U

CN210002377U - ultra-deep spiral plate load testing device

Info

Publication number: CN210002377U
Application number: CN201920441659.9U
Authority: CN
Inventors: 佘金萍; 王敬堂; 郭昌宏; 吴洪富; 曹字江
Original assignee: East China Exploration Foundation Engineering Corp Ministry Of Metallurgical Industry
Current assignee: East China Exploration Foundation Engineering Corp Ministry Of Metallurgical Industry
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-31
Anticipated expiration: 2029-04-02

Abstract

The utility model relates to an ultra-deep spiral plate load test device, including the board, set up the jack in the board bottom, the dowel steel be connected with the jack and be connected to the pressure-bearing drill bit of dowel steel, the edge of board bottom is provided with the atress support, atress support bottom is connected with the atress board, the universal wheel is installed to the atress board bottom, the through-hole has vertically been seted up on the atress board, vertically in the through-hole install the earth anchor, the earth anchor includes the stock and sets up the helical blade in the stock bottom, the earth anchor passes the through-hole and extends to the ground, the stock top is provided with the cap, the board bottom is provided with the elevating platform, the elevating platform includes telescopic link and lifter plate, open the guiding hole in the lifter plate, guiding hole inner wall and dowel steel butt all around, the utility model discloses the effect that is convenient for remove and fix.

Description

ultra-deep spiral plate load testing device

Technical Field

The utility model belongs to the technical field of ground measuring equipment's technique and specifically relates to a kind of ultra-deep spiral plate load testing arrangement is related to.

Background

At present, the spiral plate load test belongs to deep load test, and is important methods for geotechnical engineering investigation, which is to screw spiral bearing plates into the ground by mechanical or manual force to a preset depth, thereby obtaining a stress-strain-time relation curve of foundation soil, and calculating the design parameters of bearing capacity, modulus value, consolidation coefficient, non-drainage shear strength of soft clay and the like at different depths of the foundation soil.

The prior art is as that ultra-deep spiral plate load testing devices provided by patent application document with publication number CN205348143U, which comprises a counter-force mechanism, a pressurizing mechanism and a measuring and reading sedimentation mechanism, wherein the lower end of a jack is connected with a pressurizing seat, the lower end of the pressurizing seat is connected with a pressurizing pipe, the pressurizing pipe is internally provided with a sedimentation pipe capable of freely sliding up and down, the lower end of the sedimentation pipe is provided with a probe pressurized seat, the lower end of the probe pressurized seat is connected with a spiral plate probe through a dowel bar, the upper end of the sedimentation pipe is connected with the sedimentation seat, and the measuring and reading sedimentation mechanism is connected on the sedimentation seat.

The above prior art solutions have the following drawbacks: when the device is used, the device is fixed on the ground through the structures of the ground anchor and the counterforce ground anchor, and the device needs to be detached and then carried when a measurement place needs to be changed, so that the device is inconvenient to move.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an kind of ultra-deep spiral plate load testing arrangement has the removal and the fixed effect of being convenient for carry on the board.

The above technical purpose of the present invention can be achieved by the following technical solutions:

ultra-deep spiral plate load testing device comprises a machine table, a jack arranged at the bottom of the machine table, a dowel bar connected with the jack and a spiral pressure-bearing drill bit connected to the dowel bar, wherein a stress support is arranged at the edge of the bottom of the machine table, a stress plate is connected to the bottom of the stress support, universal wheels are mounted at the bottom of the stress plate, a through hole is vertically formed in the stress plate, a ground anchor is vertically mounted in the through hole and comprises an anchor rod and a spiral blade arranged at the bottom of the anchor rod, the ground anchor penetrates through the through hole and extends into the ground, a rod cap is arranged at the top of the anchor rod, a lifting table is arranged at the bottom of the machine table and comprises a telescopic rod and a lifting plate, guide holes are formed in the lifting plate, and the inner wall of each.

By adopting the technical scheme, the universal wheels are arranged at the bottom of the stress support for supporting, the machine table of the stress support can be moved by keeping the normal rotation of the universal wheels, and the effect of facilitating the movement is achieved; the structure of the stress plate is added at the bottom of the stress bracket, the through hole is formed in the stress plate, the anchor rod can be installed in the through hole, the anchor rod enters the ground and is abutted to the groove in the stress plate by using the rod cap at the top of the anchor rod, the position of the stress plate can be fixed, the position of the whole device is fixed, and the effect of facilitating the fixation is achieved; the structure of the lifting platform is used, the dowel bar penetrates through the guide hole in the lifting platform, the guide effect is achieved on the movement of the dowel bar, the possibility of bending of the dowel bar is reduced, and the measuring result is more accurate.

The utility model discloses step sets up to be provided with four telescopic links on the lifter plate, the telescopic link includes pole and pole two, the pole two sets are established in the pole outside, the top of pole two is provided with the rubber sleeve, the rubber sleeve inboard carries out the butt with pole outer wall, the outer shaping of dowel steel has the arch, protruding and lifter plate top butt.

By adopting the technical scheme, the dowel bar is connected with the lifting plate by using the convex structure, the dowel bar moves in the vertical direction through the convex ground lifting plate, the telescopic rod is stretched by adopting the structure of matching the rod with the rod II, the inner wall of the rubber sleeve is abutted against the outer wall of the rod , larger damping is provided, and the lifting plate is not easy to vertically move under the action of self gravity.

The utility model is characterized in that steps are that a horizontal cross bar is fixedly connected between two adjacent telescopic bars.

Through adopting above-mentioned technical scheme, increased the structure of horizontal pole, the structure of telescopic link is comparatively stable, is difficult for taking place the incline in the course of the work.

The utility model discloses step sets up to, the pole is two installs fastening screw outward, and fastening screw passes pole two and carries out the butt with pole .

Through adopting above-mentioned technical scheme, increase fastening screw's structure, can fix the relative position of pole and pole two when screwing fastening screw, the structure of lifter plate is more stable.

The utility model discloses step sets up to be provided with the internal thread groove and install the guide post at the through-hole top of atress board, the guide post carries out screw-thread fit with the through-hole, the vertical guiding hole that link up that is provided with in the guide post, the guide post divide into two parts of symmetry along the guiding hole axis, the stock of earth anchor carries out the butt with the guiding hole inner wall

Through adopting above-mentioned technical scheme, increase the structure of guide post, guide post screw thread is installed in the through-hole, inserts the earth anchor in the through-hole when using, splices the two parts of guide post at play and with the stock centre gripping of earth anchor, has played the guide effect to the stock at the in-process that the earth anchor rotates and moves down, keeps the vertical of stock.

The utility model discloses step sets up to be provided with the disc at the guide post top, and the diameter of disc is greater than the guide post and the bottom and the atress board butt of disc, seted up on the disc with pole cap complex recess, the recess switches on with the guiding hole, disc edge is provided with supplementary pivoted friction line.

Through adopting above-mentioned technical scheme, increase the structure of disc and increase the friction line on the disc, conveniently carry out the installation and the dismantlement of guide post, increased the structure and the pole cap cooperation of recess on the disc, conveniently carry out the fixed of atress board position.

The utility model discloses step sets up to be provided with three in the bottom of the board for the atress support, three atress supports use the axis of board as the circular array of center and arrange, and the atress board of every atress support bottom all is connected with the universal wheel, all is provided with the brake block on every universal wheel.

Through adopting above-mentioned technical scheme, the structure that uses three atress supports is used for carrying out the support of board position, and overall structure atress is comparatively even, has increased the structure of brake block on the universal wheel, conveniently carries out the fixed of the horizontal position of device.

The utility model is characterized in that the central part of the top of the rod cap is provided with an inner hexagonal groove .

Through adopting above-mentioned technical scheme, increased the structure of interior hexagonal recess on the pole cap, can use when the earth anchor is taken off to needs and carry out the rotation of pole cap with hexagonal recess complex handle, conveniently take out the earth anchor.

To sum up, the utility model discloses a beneficial technological effect does:

1. the structure of the stress bracket and the universal wheel is added, the machine table of the stress bracket can move by keeping the universal wheel to normally rotate, and the effect of convenient movement is achieved; the structure of the stress plate is added at the bottom of the stress bracket, the stress plate is provided with a through hole, the anchor rod can be installed in the through hole, the anchor rod enters the ground and is abutted to the groove on the stress plate by using the rod cap at the top of the anchor rod, and the effect of convenient fixation is achieved;

2. the telescopic rod is arranged into a structure of a rod and a rod II, and the connection between the rod and the rod II can be enhanced by using a fastening screw;

3. the structure of guide post has been increased and the guide post sets up the structure into two parts concatenations, uses the guide post to fix the stock of ground anchor when carrying out the installation of ground anchor, has played the guide effect to the stock, and the stock keeps vertical when the installation.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic structural view of the elevating platform of the present invention;

FIG. 3 is a schematic structural view of the stress plate of the present invention;

fig. 4 is an explosion diagram of the stress plate structure of the present invention.

The number of the reference numbers is 1, machine table, 11, jack, 12, dowel steel, 13, spiral pressure-bearing drill, 2, stress support, 21, stress plate, 22, through hole, 3, universal wheel, 4, ground anchor, 41, anchor rod, 42, spiral blade, 43, rod cap, 5, lifting table, 50, rod , 51, rod II, 52, lifting plate, 53, rubber sleeve, 54, fastening screw, 55, cross rod, 6, guide column, 61, guide hole, 62, disc.

Detailed Description

The present invention will be described in further detail in with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an kind of ultra-deep spiral plate load test devices, including board 1, install jack 11 in board 1 bottom, the dowel steel 12 of being connected with jack 11 bottom and the pressure-bearing auger 13 head of being connected to dowel steel 12, all install force cell sensor in pressure-bearing auger 13 head and dowel steel 12, the edge of board 1 bottom is connected with atress support 2, and atress support 2 is provided with three in board 1 bottom, and atress support 2 uses board 1 axis to be circular array distribution as the center.

Referring to fig. 1 and 2, a lifting table 5 is mounted at the bottom of a machine table 1, the lifting table 5 comprises four telescopic rods and lifting plates 52, the lifting plates 52 are horizontally arranged, four corners of the upper end of each lifting plate are connected with the telescopic rods, a guide hole 61 is formed in the middle of each lifting plate 52, a force transmission rod 12 penetrates through the guide hole 61 and abuts against the inner wall of the guide hole 61, a protrusion is formed on the force transmission rod 12 and acts on the lifting plates 52 to drive the lifting plates 52 to vertically move, the guide hole 61 in each lifting plate 52 plays a role in guiding the force transmission rod 12 to a certain extent, the force transmission rod 12 is not prone to shift in the descending process, the measuring accuracy is improved, the telescopic rods comprise rods and two rods 51, the two rods 51 are sleeved outside the rods , rubber sleeves 53 are connected to the tops of the rods 51, the inner side portions of the rubber sleeves 53 and the outer walls of the rods , horizontal cross rods 51 are fixedly connected between the two rods 51 of the adjacent telescopic rods, fastening screws are externally mounted with fastening rods 54 and are in threaded fit with screws 1 to fix the length of the telescopic rods 51 and prevent the screws from sliding when the telescopic rods 3875.

Referring to fig. 3 and 4, a stressed plate 21 is connected to the bottom of a stressed support 2, a universal wheel 3 and a brake pad are installed at the bottom of the stressed plate 21, a through hole 22 is vertically formed in the stressed plate 21, a ground anchor 4 is vertically installed in the through hole 22, the ground anchor 4 comprises an anchor rod 41 and a spiral blade 42 installed at the bottom of the anchor rod 41, the ground anchor 4 extends into the ground through the through hole 22, a rod cap 43 is formed at the top of the anchor rod 41, an inner hexagonal groove is formed at the top of the rod cap 43 to facilitate rotation of the rod cap 43 and the anchor rod 41, a guide post 6 is installed in the through hole 22 of the stressed plate 21, an inner thread groove is formed in the through hole 22, an outer thread groove matched with the guide post 6 is formed in the outer side of the guide post 6, the guide post 6 is threadedly installed in the through hole 22, a vertical guide hole 61 is formed in the middle of the guide post 6, the guide hole 61 is attached to the outer wall of the anchor rod 41 to play a role of guiding the anchor rod 41, the guide post 6 is vertically divided into two symmetrical parts along the axis of the guide hole 61, the anchor rod 41 is installed in the through hole 356, and the guide post 41 is normally maintained in a state that the anchor rod 41 is not normally installed in the guide hole .

Referring to fig. 3 and 4, a disc 62 is formed on the top of the guide post 6, the disc 62 is also divided into two parts, friction lines which are convenient to rotate are formed on the peripheral edge of the disc 62, the diameter of the disc 62 is larger than that of the through hole 22, and the bottom of the disc 62 abuts against the stress plate 21 after installation. The disc 62 is provided with a groove which is matched with the top rod cap 43 of the anchor rod 41, and the groove is abutted with the rod cap 43.

The utility model discloses a theory of operation: in use, the jack 11 is retracted to facilitate movement of the device, which is facilitated by the structure of the force bearing support 2 and the moving wheels. After moving to the designated position, the guide post 6 in the stress plate 21 is taken out, and the ground anchor 4 is sent into the through hole 22 and rotated into the ground. When the anchor 4 is partially screwed in, the guide post 6 split into two parts is inserted into the through hole 22 for guiding the anchor rod 41. Finally, the rod cap 43 at the top of the ground anchor 4 is clamped with the groove on the guide post 6, and the ground anchor 4 acts on the stressed bottom plate to realize the position fixation of the device.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

The ultra-deep spiral plate load testing device comprises a machine table (1), a jack (11) arranged at the bottom of the machine table (1), a dowel bar (12) connected with the jack (11) and a spiral pressure-bearing drill (13) head connected to the dowel bar (12), and is characterized in that a stress support (2) is arranged at the edge of the bottom of the machine table (1), a stress plate (21) is connected to the bottom of the stress support (2), universal wheels (3) are mounted at the bottom of the stress plate (21), a through hole (22) is vertically formed in the stress plate (21), a ground anchor (4) is vertically mounted in the through hole (22), the ground anchor (4) comprises an anchor rod (41) and a spiral blade (42) arranged at the bottom of the anchor rod (41), the ground anchor (4) penetrates through the through hole (22) and extends into the ground, a rod cap (43) is arranged at the top of the anchor rod (41), a lifting table (5) is arranged at the bottom of the machine table (1), the lifting table (5) comprises a telescopic rod and a lifting plate (52), a guide hole (61) is arranged in the lifting plate (52), and the inner wall of the guide hole.
2. The ultra-deep spiral plate load testing device of claim 1, wherein the lifting plate (52) is provided with four telescopic rods, each telescopic rod comprises a rod (50) and a rod II (51), the rod II (51) is sleeved on the outer side of the rod (50), the top of the rod II (51) is provided with a rubber sleeve (53), the inner side of the rubber sleeve (53) is abutted against the outer wall of the rod (50), and a protrusion is formed on the outer side of the dowel bar (12) and abutted against the top of the lifting plate (52).
3. The kind of ultra-deep spiral plate load testing device of claim 2, wherein a horizontal cross bar (55) is fixedly connected between the two rods (51) of adjacent telescopic rods.
4. The kind of ultra-deep spiral plate load testing device of claim 2, wherein the second rod (51) is externally mounted with a fastening screw (54), and the fastening screw (54) passes through the second rod (51) to abut against the rod (50).
5. The ultra-deep spiral plate load testing device of claim 1, wherein an internal thread groove is formed in the top of the through hole (22) of the stress plate (21) and a guide post (6) is installed, the guide post (6) is in threaded fit with the through hole (22), a through guide hole (61) is vertically formed in the guide post (6), the guide post (6) is divided into two symmetrical parts along the axis of the guide hole (61), and an anchor rod (41) of the ground anchor (4) is abutted to the inner wall of the guide hole (61).
6. The ultra-deep spiral plate load testing device of claim 5, wherein a disc (62) is arranged at the top of the guide post (6), the diameter of the disc (62) is larger than that of the guide post (6), the bottom of the disc (62) abuts against the stress plate (21), a groove matched with the rod cap (43) is formed in the disc (62), the groove is communicated with the guide hole (61), and friction grains for assisting rotation are arranged at the edge of the disc (62).
7. The ultra-deep spiral plate load testing device of claim 1, wherein the stress bracket (2) has three locations at the bottom of the machine table (1), the three locations of stress bracket (2) are arranged in a circular array with the axis of the machine table (1) as the center, the stress plate (21) at the bottom of each location of stress bracket (2) is connected with a universal wheel (3), and each universal wheel (3) is provided with a brake pad.
8. The kind of ultra-deep spiral plate load testing device of claim 1, wherein the central part of the top of the rod cap (43) is provided with a hexagon socket.