CN214096903U

CN214096903U - Rock in-situ test counter-force platform

Info

Publication number: CN214096903U
Application number: CN202023064195.6U
Authority: CN
Inventors: 司加放; 席红伟; 王东
Original assignee: Xi'an Building Materials Geological Engineering Survey Institute Co ltd
Current assignee: Xi'an Building Materials Geological Engineering Survey Institute Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-31
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a rock normal position test counter-force platform, including the frame post, be connected with the frame boundary beam through the cooperation of long welt and fastener between the frame post, the inside short welt that is provided with of frame boundary beam, short welt inboard is connected with long girder through the cooperation of connecting plate with the fastener, long girder both sides are connected with short girder respectively, frame post upside is provided with the hopper, and the device bulk rigidity is good, and it is convenient to dismantle, and test equipment installs swiftly, can use repeatedly, saves the cost, and traditional counter-force device needs 2-3 months, and the device can accomplish in one day, shortens experimental preparation work in earlier stage greatly.

Description

Rock in-situ test counter-force platform

Technical Field

The utility model relates to a testing arrangement technical field specifically is a rock normal position test counter-force platform.

Background

In the rock in-situ test (load test, direct shear test and the like), a certain force is applied to a test rock body through an oil jack, and corresponding rock mechanical parameters are calculated according to the current specification through the relation between the step-by-step pressurizing test force and deformation. Because the rock mass is high in strength, the pressure required by the test reaches the hundred tons level, and a set of firm counter-force supporting points is required. The reaction supporting point provided by the current engineering rock mass test specification is a pilot tunnel for testing on a rock mass, and a tunnel roof and a tunnel wall are used as reaction supports. The method has great limitation on soft rock, chamber excavation is difficult, chamber walls are loose and easy to fall and unstable, particularly, tests are often required to be performed near tunnel faces in expressway construction projects, the tests cannot influence construction, and the tunnel drilling tests are hardly feasible. Because of the rock mass under the test platform, it is also infeasible to utilize the traditional earth anchor to do the counter-force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rock normal position test counter-force platform connects through the fastener, adopts the I-shaped steel roof beam to make a complete support, can adopt the larsen board to make the hopper on the support, and the hopper can be filled with the detritus with the forklift, and support strength can reach 200 tons through checking calculation, can satisfy the required counter-force requirement of soft rock mass test completely to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rock normal position test counter-force platform, includes the frame post, be connected with the frame boundary beam through the cooperation of long welt and fastener between the frame post, the inside short welt that is provided with of frame boundary beam, the short welt inboard is connected with long girder through the cooperation of connecting plate with the fastener, long girder both sides are connected with short girder respectively, frame post upside is provided with the hopper.

Preferably, the upper side and the lower side of the joint of the frame boundary beam and the frame column are both provided with reinforcing plates.

Preferably, the frame column, the long main beam, the short main beam, the long lining plate, the short lining plate and the connecting plate are all provided with connecting holes.

Preferably, the frame columns, the frame boundary beams, the long main beams and the short main beams are I-shaped steel beams.

Preferably, the cross-sectional dimension of the i-shaped steel beam HW250X250X9X14 and the steel material Q345B.

Preferably, the hopper is formed by a combination of larsen plates.

Preferably, the frame column is fixedly connected with the long lining plate in a welding mode, and the frame boundary beam is fixedly connected with the short lining plate in a welding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the frame column, the frame boundary beam, the long main beam and the short main beam are all formed by I-shaped steel beams, the section sizes of the I-shaped steel beams HW250X250X9X14 and the steel material Q345B are fastened and connected through fasteners, so that the frame column, the frame boundary beam, the long main beam and the short main beam are convenient to detach and good in overall rigidity.

2. The hopper is formed by Larsen board combination, can set up the size of hopper according to the biggest power that the experiment needs, guarantees that the inside building stones weight of hopper should be greater than experimental maximum power more than 2.5 times, and Larsen board combination is convenient, and the installation is simple, has reduced construction strength, can test moreover and finish collecting the waste material and provide convenience.

In conclusion, the device has the advantages of good overall rigidity, convenience in disassembly, rapidness in test equipment installation, reusability and cost saving. The traditional counterforce device needs 2-3 months, and the device can be completed in one day, so that the preliminary preparation work of the test is greatly shortened.

Drawings

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

FIG. 2 is a schematic structural view of the supporting part of the present invention;

fig. 3 is a schematic structural view of the frame column of the present invention;

FIG. 4 is a schematic structural view of the joint between the frame column and the frame boundary beam of the present invention;

FIG. 5 is a schematic view of the structure of the junction between the long main beam and the short main beam;

FIG. 6 is a schematic diagram of the Larsen plate structure of the present invention;

in the figure: 1-frame column, 2-frame boundary beam, 3-long main beam, 4-short main beam, 5-long lining plate, 6-short lining plate, 7-connecting plate, 8-connecting hole, 9-fastening piece, 10-reinforcing plate, 11-hopper and 12-Larsen plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a rock in-situ test counter-force platform is composed of a frame column 1, a frame boundary beam 2, a long main beam 3, a short main beam 4 and a hopper 11.

The frame column 1, the frame side beam 2, the long main beam 3 and the short main beam 4 are all I-shaped steel beams. The cross-sectional dimension HW250X250X9X14 of the I-shaped steel beam and the steel material Q345B.

As shown in fig. 2, frame side beams 2 are connected between the frame columns 1 through the matching of long lining plates 5 and fasteners 9. The frame column 1 is fixedly connected with the long lining plate 5 in a welding mode. The frame boundary beam 2 is internally provided with a short lining plate 6. The frame edge beam 2 is fixedly connected with the short lining plate 6 in a welding mode. The inner side of the short lining plate 6 is connected with a long main beam 3 through the matching of a connecting plate 7 and a fastener 9. The two sides of the long main beam 3 are respectively connected with a short main beam 4.

As shown in fig. 4 and 5, the frame columns 1, the long main beams 3, the short main beams 4, the long lining plates 5, the short lining plates 6 and the connecting plates 7 are all provided with connecting holes 8, and the connecting holes 8 are matched with fasteners 9 to realize fastening connection.

As shown in figures 1 and 6, the hopper 11 is formed by combining Larsen plates 12, the size of the hopper 11 can be set according to the maximum force required by the experiment, and the weight of the stone in the hopper 11 is ensured to be more than 2.5 times larger than the maximum force of the experiment.

The working principle is as follows:

at first, long girder 3 and short girder 4 are connected together through the effect of short welt 6, connecting plate 7, connecting hole 8 and fastener 9, constitute "ten" style of calligraphy structure, and this kind of framework has satisfied the pressure-bearing demand of hundreds of tons of carriers, also dismantles the convenience, and the girder can not take place deformation when carrying out the counter-force test moreover and offset experimental data, and the test is accurate. And then the long main beam 3 and the short main beam 4 are respectively combined with the frame boundary beam 2 through the matching of the short lining plate 6, the connecting plate 7, the connecting hole 8 and the fastener 9. The frame edge beam 2 is then firmly connected with the frame column 1 through the action of the long lining plate 5, the connecting hole 8 and the fastener 9. After assembly, the device is placed on a test site by means of a crane or other auxiliary equipment, and finally assembled by means of a larsen panel 12 on the upper side of the frame column 1 to form a hopper 11. The rock material is added to the hopper 11 by a loader, the weight of which is more than 2.5 times the maximum test force. The device has good integral rigidity, convenient disassembly, quick test equipment installation, repeated use and cost saving. The traditional counterforce device needs 2-3 months, and the device can be completed in one day, so that the preliminary preparation work of the test is greatly shortened.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a rock normal position test counter-force platform, includes frame post (1), its characterized in that: be connected with frame boundary beam (2) through the cooperation of long welt (5) and fastener (9) between frame post (1), frame boundary beam (2) inside is provided with short welt (6), short welt (6) inboard is connected with long girder (3) through the cooperation of connecting plate (7) with fastener (9), long girder (3) both sides are connected with short girder (4) respectively, frame post (1) upside is provided with hopper (11).

2. The in-situ rock test counterforce platform of claim 1, wherein: and reinforcing plates (10) are arranged on the upper side and the lower side of the joint of the frame boundary beam (2) and the frame column (1).

3. The in-situ rock test counterforce platform of claim 1, wherein: the frame column (1), the long main beam (3), the short main beam (4), the long lining plate (5), the short lining plate (6) and the connecting plate (7) are all provided with connecting holes (8).

4. The in-situ rock test counterforce platform of claim 1, wherein: the frame column (1), the frame boundary beam (2), the long main beam (3) and the short main beam (4) are all I-shaped steel beams.

5. The in-situ rock test counterforce platform of claim 4, wherein: the cross-sectional dimension HW250X250X9X14 of the I-shaped steel beam and the steel material Q345B.

6. The in-situ rock test counterforce platform of claim 1, wherein: the hopper (11) is formed by combining Larsen plates (12).

7. The in-situ rock test counterforce platform of claim 1, wherein: the frame column (1) is fixedly connected with the long lining plate (5) in a welding mode, and the frame boundary beam (2) is fixedly connected with the short lining plate (6) in a welding mode.