CN218322887U

CN218322887U - Hammer test device for foundation pile high strain detection

Info

Publication number: CN218322887U
Application number: CN202221604275.2U
Authority: CN
Inventors: 沈晔; 潘祥亮
Original assignee: Hefei Gongda Engineering Testing Co ltd
Current assignee: Hefei Gongda Engineering Testing Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-01-17
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a foundation pile height is hammer test device for strain detection, stack a top hammer, a plurality of pilot hammer and a end hammer in proper order including from the top down, top hammer lower surface and pilot hammer between, between the upper and lower adjacent pilot hammer and all be equipped with the shock insulation rubber pad between end hammer upper surface and the pilot hammer, top hammer, pilot hammer and end hammer side all be equipped with a set of fixed orifices seat of symmetry, wherein from the top down passes a shank of bolt between the fixed orifices seat with one side, the shank of bolt on the lower extreme all fix fixed orifices seat surface through the nut. The device can realize on-site fast assembly, and the measurement personnel need not right with the hand, can also adjust the counter weight of hammer in a flexible way, the foundation pile of the multiple different limit bearing capacities of adaptation.

Description

Hammer test device for foundation pile high strain detection

Technical Field

The utility model relates to a foundation pile height meets an emergency the check out test set technical field, and more specifically says, relates to a foundation pile height meets an emergency and detects with hammer test device.

Background

Along with the development of national economy of China, engineering construction is also rapidly developed, the requirements on the construction quality are higher and higher, the requirements on foundation foundations are also continuously increased, the use of pile foundations is gradually generalized and complicated, and the high strain detection of foundation piles becomes a mature foundation pile detection technology.

At present, the basic principle of high strain detection is to apply an impact force to the axial direction of the pile top to enable the pile to generate enough penetration, measure the response of the mass point stress and the acceleration of the pile body generated by the impact force, and judge the vertical bearing capacity of the single pile and the integrity of the pile body through the analysis of a fluctuation theory. In high strain detection, the weight of the heavy hammer is required to be 1% -1.5% of the ultimate bearing capacity, the weight of the common heavy hammer is generally hundreds of kilograms to several tons, and the heavy hammers with different weights are required to be adopted due to different ultimate bearing capacities of foundation piles.

In current equipment, the high strain hammer is casting fashioned integrative hammer, but because the limit bearing capacity of foundation pile is different, need adopt the weight of different masses, adopt the fashioned foundation pile of weight of casting can only detect certain limit bearing capacity once, need make the weight of different masses to the foundation pile of different limit bearing capacities, very inconvenient, although some combination formula weights that can change the quality have appeared, but the trouble very when the equipment, need operating personnel to right with the hand, slide easily during the equipment, safety hazard takes place, and current weight lacks certain safeguard measure, produce the destruction to the pile head easily during the hammering.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a foundation pile height is met an emergency and is detected with hammer test device, the device can realize on-the-spot fast assembly, and detection personnel need not be right with hand, can also adjust the foundation pile of hammer counter weight, the multiple different limit bearing capacity of adaptation in a flexible way.

In order to realize the purpose, the utility model adopts the technical scheme as follows:

the utility model provides a foundation pile height is met an emergency and is detected with hammer test device, includes from the top down stacks a top hammer, a plurality of pilot hammer and a end hammer in proper order, top hammer lower surface and pilot hammer between, between the upper and lower adjacent pilot hammer and all be equipped with the shock insulation rubber pad between end hammer upper surface and the pilot hammer, top hammer, pilot hammer and end hammer side all be equipped with a set of fixed orifices seat of symmetry, wherein from the top down passes a shank of bolt between the fixed orifices seat with one side, the shank of bolt on the lower extreme all fix fixed orifices seat surface through the nut.

Further, the number of the adjusting hammers is set according to the limit bearing capacity of different foundation piles.

Further, the top hammer, the regulating hammer and the bottom hammer are the same in size.

Furthermore, a lifting lug is machined on the upper surface of the top hammer, and the lower surface of the bottom hammer applies impact force to the top of the foundation pile.

Compared with the prior art, the utility model has the advantages that:

the utility model can reduce the damage of impact to the hammer body and prolong the service life of the top hammer, the adjusting hammer and the bottom hammer by arranging the shock insulation rubber pad structure; by arranging the structures such as the fixed hole seat, the device can be quickly assembled on site, and the phenomena that personnel rights by hands, the device is easy to slide during assembly and safe and dangerous phenomena occur are overcome; different quantity of adjusting hammer structures can be flexibly adjusted through the arrangement, different quantity of counterweight hammers can be additionally arranged according to different ultimate bearing capacities of the foundation pile, and the quantity of the counterweight hammers on the bottom hammer can be freely selected according to needs.

Drawings

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

FIG. 2 is a schematic structural view of a second embodiment of the present invention;

in the figure: 1. jacking a hammer; 2. adjusting the hammer; 3. a bottom hammer; 4. shock insulation rubber pads; 5. a fixed hole seat; 6. a bolt shank; 7. and (7) lifting lugs.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the utility model easy to understand and understand, the utility model is further explained by combining with the specific figures.

As shown in fig. 1, only one adjusting hammer 2 is used according to the bearing limit of a foundation pile, a lifting lug 7 is connected with a sling of a hoisting device, the top hammer 1 is lifted upwards, then the lower adjusting hammer 2 and the lower bottom hammer 3 are sequentially connected through a bolt rod 6 and a nut on two sides, a shock insulation rubber pad 4 is arranged at a gap position, a detection component is arranged on the foundation pile, a high strain detection test is carried out through the test device, and impact force is applied to the top of the foundation pile;

as shown in figure 2, use two pilot hammers 2 according to foundation pile bearing limit, repeat above-mentioned installation step, in the installation, install a pilot hammer 2 more, make the quality of whole test device accord with experimental requirement standard, the shock insulation rubber pad 4 structure of setting, be used for reducing the injury of impact to hammer block itself, extension top hammer 1, the life of pilot hammer 2 and end hammer 3, set up fixed hole seat 5 isotructures, can on-the-spot quick assembly, and overcome personnel and right with the hand, slide easily during the equipment, the safe dangerous phenomenon takes place, the quantity of pilot hammer 2, can install different quantity according to the difference of the limit bearing capacity of foundation pile additional.

The basic principles and 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 foundation pile height is met an emergency and is detected with hammer test device which characterized in that: including stacking a top hammer, a plurality of pilot hammer and a end hammer in proper order from the top down, top hammer lower surface and pilot hammer between, between the upper and lower adjacent pilot hammer and all be equipped with the shock insulation rubber pad between end hammer upper surface and the pilot hammer, top hammer, pilot hammer and end hammer side all be equipped with a set of fixed hole seat of symmetry, wherein from the top down passes a shank of bolt between the fixed hole seat with one side, the shank of bolt on the lower extreme all fix fixed hole seat surface through the nut.

2. The pile height is met and is met an emergency and measure and use hammer test device according to claim 1, characterized in that: the number of the adjusting hammers is set according to the limit bearing capacity of different foundation piles.

3. The pile height is met and is met an emergency and measure and use hammer test device according to claim 1, characterized in that: the top hammer, the regulating hammer and the bottom hammer are the same in size.

4. The pile foundation height meets an emergency and detects with hammer test device of claim 1, characterized in that: the upper surface of the top hammer is provided with a lifting lug, and the lower surface of the bottom hammer applies impact force to the top of the foundation pile.