CN102520136B - Support panel of formation deformation simulation test platform with side seal - Google Patents

Abstract

The invention relates to a terrain deformation simulation test platform supporting panel with side seal, which is formed by at least ten unit panels, wherein one unit panel is connected with corners of an adjacent unit panel through connecting pieces; and a sealing piece is arranged between the unit panel and the adjacent unit panel. The unit panels on nodes are connected through the connecting pieces which penetrate through safety hooks on the corners of each unit panel, limiting stands are arranged on edges of each unit panel; a limiting slot is formed by the limiting stands between each two adjacent panels, and a rigid sealing piece is arranged in each limiting slot, so that the integrity of the whole panel is better, and the safety is higher. A strengthening piece is arranged on the middle of the lower surface of each unit panel, so that the whole load bearing capacity of the panel can be enhanced, the deformation is reduced, the measuring accuracy of the whole test platform is improved simultaneously, the safety is greatly improved, and the load bearing capacity of the supporting panel is further enhanced. An upper panel is made of steel materials so as to be more convenient to process and have improved rigidity.

Description

Support panel of formation deformation simulation test platform with side seal

technical field

The invention belongs to the technical field of engineering building test equipment or devices, and in particular relates to a test platform for simulating formation deformation.

Background technique

Geological disasters (such as ground fissures, ground subsidence, etc.) caused by stratum deformation are very harmful to buildings, bridges, tunnels, pipelines and other construction facilities. It is necessary to establish a formation deformation simulation test rig and artificially create a certain formation deformation through the formation deformation simulation test rig to study the deformation characteristics of the formation under different geological conditions and the ability to investigate the formation deformation under different treatment methods.

At present, most studies on this issue use small-scale test equipment to test, and the data errors are relatively large. Large-scale test platforms for studying formation deformation are rare. The Chinese patent No. 200410026128.1 discloses a large-scale test platform. The movable settling plate of the equilateral triangle is supported by the platform support set under its apex (that is, the node) and the electric and manual dual-purpose jack, and the lifting of the jack is used to realize the lifting of the node of the test platform. In this way, the movable settlement of the equilateral triangle The test platform spliced by the plates can easily simulate various deformations, which can be used to simulate formation deformation and carry out formation deformation simulation tests.

Since these equilateral triangular movable settling plates are directly placed on the platform support, at the same time, in order to simulate deformation, a small gap is reserved between the equilateral triangular movable settling plates, but there is no setting in the horizontal direction of the equilateral triangular movable settling plates. The positioning device, under the action of complex soil internal stress during the test, sometimes some equilateral triangular movable settlement plates will move horizontally, and in severe cases, they will fall downward, affecting the authenticity of the test results and even causing accidents harm. At the same time, in order to prevent the test soil from leaking from the gap between the regular triangular movable settling plates to the lifting area of the test bench jack under the test panel, some simple covers were set on the joints of the regular triangular movable settling plates during the test, but due to these The cover plate has no positioning mechanism, and the test soil often leaks downward due to the movement of the cover plate during the test.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned test platform support panel that is prone to large displacement and edge soil leakage during the test process, and to provide a side seal with reasonable design, good sealing performance, better integrity and safety. The support panel of the formation deformation simulation test platform.

The technical solution for solving the above-mentioned technical problems is: it is composed of at least ten unit panels, wherein one unit panel is connected to the corner of an adjacent unit panel through a joint, and a seal is arranged between one unit panel and an adjacent unit panel. pieces.

The unit panel of the present invention is as follows: a limited platform is processed on the edge of the upper panel, side panels are arranged on the edge of the lower surface of the upper panel, and a load-bearing block is arranged between one side panel and an adjacent side panel; On the limit table.

The lower surface of the upper panel of the present invention is provided with reinforcing members.

The reinforcement member of the present invention is a reinforcement plate and/or a reinforcement tube.

In the present invention, a safety hook is provided outside the load-bearing block at the corner of the unit panel.

In the present invention, a unit panel is connected with a corner of an adjacent unit panel by means of a connector: the connector passes through a unit panel and connects with a safety hook at the corner of an adjacent unit panel.

The sealing member of the present invention includes a middle sealing strip overlapping the limiting platforms of two adjacent unit panels and an edge sealing strip 4 arranged on the limiting platforms of the edge unit panels.

The upper panel of the present invention is a steel panel.

The present invention connects the unit panels at the joints through the safety hooks arranged at the corners of the unit panels and the connectors passing through the safety hooks, avoiding the large horizontal movement of individual unit panels due to the force generated by soil deformation. The technical problem of large displacement or falling in the horizontal direction at the node; the present invention sets a limiting platform on the edge of the unit panel, and the limiting platform between two adjacent panels forms a limiting groove. The seal is set, and the seal can effectively prevent the soil particles from leaking downward from the gap between the unit panels. The limit groove can prevent the excessive deviation of the seal during the test. After using the rigid seal, the seal can also Preventing two adjacent panels from being too close together also makes the integrity of the entire panel better and higher in safety; the present invention also adopts a reinforcing component in the middle of the lower surface of the unit panel, which can strengthen the overall bearing capacity of the panel, making Its deformation is reduced, and at the same time, the measurement accuracy of the entire test bench is improved, the safety is also greatly improved, and the bearing capacity of the supporting panel is further strengthened. The upper panel of the present invention adopts steel material, which makes the upper panel easier to process and improves the rigidity.

Description of drawings

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

Fig. 2 is a front view of the unit panel of Fig. 1 .

Fig. 3 is a view taken along direction B of Fig. 2 .

Fig. 4 is a view along the direction A of Fig. 2 .

Fig. 5 is a C-C sectional view of Fig. 4 .

Fig. 6 is a schematic structural diagram of Embodiment 2 of the present invention.

Fig. 7 is a front view of a side panel of the second embodiment.

Fig. 8 is a rear view of a side panel of the second embodiment.

FIG. 9 is a schematic structural diagram of Embodiment 3.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

Example 1

Referring to Fig. 1 , the supporting panel of the formation deformation simulation test platform with side sealing in this embodiment is composed of 36 unit panels 1 , intermediate sealing strips 2 , connecting ropes 3 , and edge sealing strips 4 . An intermediate sealing strip 2 is installed between a unit panel 1 and an adjacent unit panel 1, and an edge sealing strip 4 is installed between the edge of the supporting panel and the side wall of the test bench. The intermediate sealing strip 2 and the edge sealing strip 4 can effectively It can effectively prevent soil particles from leaking downwards, and at the same time, it also makes the integrity of the entire panel better and safer. At each node, the corners of all unit panels 1 are connected by connecting ropes 3 to form a support panel.

In Fig. 2-5, the unit panel 1 of this embodiment consists of a safety hook 1-1, an upper panel 1-2, a side panel 1-3, a bearing block 1-4, a reinforcing tube 1-5 and a reinforcing plate 1-6 Join composition.

The geometric shape of the upper panel 1-2 is formed by cutting off a small isosceles triangle from the top corner of an equilateral triangle. The upper panel 1-2 is a steel panel with a thickness of 3cm and a side length of 150cm. The limit platform 1-2.1 is processed on the upper edge, and the two adjacent upper panels 1-2 are arranged together. The limit platforms 1-2.1 of the two upper panels 1-2 form a limit groove, and the middle sealing strip 2 is installed in the limit In the groove, the gap between a unit panel 1 and the adjacent unit panel 1 is sealed to prevent the soil particles paved on the upper surface of the unit panel 1 from leaking from the gap between the unit panel 1 and the adjacent unit panel 1 . After the intermediate sealing strip 2 is made of steel, the intermediate sealing strip 2 can effectively prevent two adjacent unit panels 1 from being too close together, thereby preventing excessive horizontal displacement of the unit panels 1 . Edge sealing strips 4 are arranged on the limiting platform 1-2.1 of the unit panel 1 at the edge, which can prevent soil particles from leaking from the edge gaps of the supporting panel and limit the excessive outward movement of the unit panel 1 at the same time. A side plate 1-3 is welded and connected to the edge of the lower surface of the upper panel 1-2, and the side plate 1-3 plays a reinforcing role. A load-bearing block 1-4 is welded at the corner between one side plate 1-3 and an adjacent side plate 1-3, and the support at the upper end of the jack of the simulated test platform is supported on the load-bearing block 1-4. The middle part of the lower surface of the upper panel 1-2 is welded with a reinforcing tube 1-5, which strengthens the upper panel 1-2, and the outer wall of the reinforcing tube 1-5 is welded with the upper panel 1-2. The connected reinforcement boards 1-6, the reinforcement boards 1-6 play a reinforcing role. A safety hook 1-1 is welded and connected to the outer side of the corner bearing block 1-4 of the unit panel 1, and the safety hook 1-1 is used to connect a unit panel 1 at a node with an adjacent unit panel 1. When connecting, each A node adopts the connecting rope 3 to pass through the safety hooks 1-1 of all unit panels 1 of the node, and connects a unit panel 1 with all unit panels 1 at the same node, thereby realizing the formation of a whole between all unit panels 1, preventing During the test, individual unit panels 1 have a relatively large displacement or fall off.

Example 2

Referring to FIGS. 6 to 8 , the difference between this embodiment and Embodiment 1 is that the support panel is composed of 44 unit panels 1 . The unit panel 1 at the left and right ends of the support panel is designed as a right triangle with the top corner cut off according to the structural requirements, so that the overall shape of the entire support panel is a rectangle. A reinforcing plate 1-6 is provided on the lower surface of the upper panel 1-2 of the unit panel 1. As shown in FIG. The upper panel 1-2 of each unit panel 1 has a thickness of 3 cm, and the side length can be specifically determined according to actual needs during use.

The other components and their connections are the same as in Embodiment 1.

Example 3

Referring to FIG. 9 , the unit panel 1 in this embodiment is an isosceles triangle structure with corners cut off. The coupling relationship of other components and components is the same as that of Embodiment 1.

Example 4

In this embodiment, the unit panels 1 at the left and right ends of the supporting panel are designed as right-angled triangles with corners cut off according to structural requirements, so that the overall shape of the supporting panel is rectangular. A reinforcing plate 1-6 is provided on the lower surface of the upper panel 1-2 of the unit panel 1. As shown in FIG. The coupling relationship of other components and parts is the same as that of Embodiment 3.

Example 5

The difference with Embodiment 1 is: the support panel of this embodiment is formed by connecting 10 unit panels 1, and the corners of all unit panels 11 at nodes are connected with each other by chains to form a support panel.

Other components and their connections are the same as in Embodiment 1.

The working principle of the present invention is as follows:

The present invention is placed on the platform support of the test platform, and the top angle of each unit panel 1 is placed on the supporting point position of the platform support, that is, each unit panel 1 is connected to the platform support through its load-bearing blocks 1-4. The supporting points are in contact, and the test load is transmitted to the platform support. In addition, the corners of the unit panels 1 on each platform support are connected through the safety hook 1-1 through the connecting rope 3, so that all the unit panels 1 It is connected as a whole, and a sealing strip is plugged between adjacent unit panels 1, and the sealing strip is limited by the limiting platform 1-2.1 set on the upper panel 1-2 to prevent it from being sealed during the test. Unreliable, soil particles leaking downwards and so on. After the steel sealing strip is adopted, the middle sealing strip 2 can also prevent two adjacent test panels from getting too close; the edge sealing strip 4 can prevent the unit panel 1 from moving excessively outward. Part of the force generated by soil gravity and soil deformation during the test is directly transmitted to the jack by the load-bearing blocks 1-4, and the other part is dispersed by the displacement buffer of the connected unit panel 1, so that no local load is too large, and The phenomenon that the local unit panel 1 is displaced too much or falls off. Fill soil on the supporting panel, and use the jack lifting device to control the lifting of the platform support on the top, that is, to drive the lifting of the connection points of each unit panel 1, so as to realize the vertical movement of the supporting panel in space, and simulate the stratum Subsidence deformation phenomenon.

Claims (4)

1. A support panel of a side-sealed formation deformation simulation test platform, consisting of at least ten unit panels (1), characterized in that the unit panels (1) are: the geometric shape of the upper panel 1-2 is an equilateral triangle Cut off a small isosceles triangle at the top corner of the upper panel (1-2) to form a limited platform (1-2.1), and the lower surface edge of the upper panel (1-2) is provided with a side panel (1 -3), the lower surface of the upper panel (1-2) is provided with a reinforcing plate (1-6), and a load-bearing block ( 1-4), a safety hook (1-1) is provided on the outer side of the load-bearing block (1-4), and a connecting rope is used to pass through a unit panel (1) and the safety hook (1) at the corner of an adjacent unit panel (1) -1) Connection, the seal is set on the limit platform (1-2.1). 2. The support panel of the formation deformation simulation test platform with side seal according to claim 1, characterized in that: the seal includes a limit platform (1-2.1) lapped on two adjacent unit panels (1) ) on the middle sealing strip (2) and the edge sealing strip (4) arranged on the limit platform (1-2.1) of the edge unit panel (1). 3. The side-sealed ground deformation simulation test platform support panel according to claim 2, characterized in that: the middle sealing strip (2) and the edge sealing strip (4) are steel sealing strips. 4. The support panel of the ground deformation simulation test platform with side sealing according to claim 1, characterized in that: the upper panel (1-2) is a steel panel.