NL2032780B1

NL2032780B1 - Adjustable support for terrain simulation in solid model

Info

Publication number: NL2032780B1
Application number: NL2032780A
Authority: NL
Inventors: Li Guangzhao; Zhang Rongwei; Xu Feifei; Zhou Zongzhi; Li Yuan; Li Zexuan; Li Xin; Wang Shu; Han Chao; Ma Wenjun; Zhang Liting; Zhu Yongtao; Zhang Shaoxiong; Li Baoqi; Zhou Ding; Wang Huiqing; Zhu Yu; Dang Xianzhang; Yang Meng
Original assignee: Hebei Hydraulic Res Institute; Univ Shijiazhuang Tiedao
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2024-02-27

Abstract

The invention. provides an adjustable support for terrain simulation, including a telescopic sleeve provided with a baseplate, a top end of the telescopic sleeve is connected to an adjustable top base through a supporting column; the adjustable 5 top base includes a planar top seat and a connecting plate that is arranged perpendicular to a bottom end surface of the adjustable top base; a top end of the supporting column is provided with a groove into which the connecting plate is inserted and which runs transversely through the top end of the supporting column, and the 10 connecting plate is positioned into the groove through a positioning bolt and a nut that are matched. When applied to a terrain simulation test, the invention can quickly and efficiently complete the simulation layout of terrain while ensuring the accuracy of model and can be assembled and disassembled to achieve 15 reuse. (+ Fig. )

Description

P1489/NLpd

ADJUSTABLE SUPPORT FOR TERRAIN SIMULATION IN SOLID MODEL

TECHNICAL FIELD

The invention relates to the technical field of hydraulic models, more particularly to a support for building a terrain mod- el.

BACKGROUND ART

Tailings pond, as a special industrial building, is one of the three basic projects of the mine. The tailings pond refers to a place that is formed by building a dam to intercept the mouth of a valley or enclosing a land so as to stack tailings or other in- dustrial waste residues discharged after beneficiation of metal or non-metallic ores. As an artificial debris flow hazard source with high potential energy, the tailings pond has a risk of dam break; once the dam break occurs, it is easy to cause a major or cata- strophic accident. With the rapid development of the domestic min- ing industry, the tailings ponds are growing in both number and scale, and damages caused after accidents to the downstream and surrounding areas are increasing too. Safety issues need to be studied urgently. The most direct and effective method is to study the safety of tailings ponds through a model test.

The model test has recognized practical significance and sci- entific value, for example, the tailings pond dam-break model test and the tailings pond seepage model test designed in accordance with specific similarity criteria may preview and reproduce vari- ous complex debris flow and dam seepage movement phenomena in ac- tual conditions, may check the reliability and accuracy of the de- sign scheme and optimize the project layout and shape. The premise of the model test is to build a terrain. The conventional method to build a terrain is to: first, find out many representative ele- vation points according to the undulation of the actual terrain, fill with solid materials such as cement, brick, stone or concrete at each elevation point to reach a specified elevation; then, per- form fitting from point to surface at each determined elevation point to complete the simulation of the actual terrain. Such a method is not only complicated and cumbersome, time consuming and labor consuming, but is difficult to control precision and diffi- cult to meet the requirements of test and measurement. In addi- tion, most tailings ponds are built in the mountainous areas with an undulating terrain and a large elevation difference, a great number of materials are consumed to simulate the terrain by fill- ing with solid materials, and these materials cannot be reused, leading to a great waste of resources.

SUMMARY

The technical problem to be solved by the invention is to provide an adjustable support applicable to a terrain simulation in a tailings pond dam-break model test, which can quickly and ef- ficiently complete the simulation layout of terrain while ensuring the accuracy of model and which can be assembled and disassembled to achieve reuse.

In order to solve the above problem, the invention employs the technical scheme as follows.

An adjustable support for terrain simulation includes a tele- scopic sleeve provided with a baseplate, wherein a top end of the telescopic sleeve is connected to an adjustable top base through a supporting column; the adjustable top base includes a planar top seat and a connecting plate that is arranged perpendicular to a bottom end surface of the adjustable top base; a top end of the supporting column is provided with a groove into which the con- necting plate is inserted and which runs transversely through the top end of the supporting column, and the connecting plate is po- sitioned into the groove through a positioning bolt and a nut that are matched.

An improvement of the invention is that: supporting arms on two sides of the groove of the supporting column are provided sym- metrically with, along the direction of the groove, a reinforcing bolt for pressing against the positioning bolt.

An improvement of the invention is that: a bottom end of the supporting column is in threaded connection with the top end of the telescopic sleeve.

A further improvement of the invention is that: the telescop- ic sleeve includes two sleeve pieces fitting into each other, and an outer wall of a lower sleeve piece is provided with a jackscrew for positioning an upper sleeve piece.

Another improvement of the invention is that: the planar top seat is of a circular plate structure, and a periphery of the cir- cular plate top seat is evenly provided with a plurality of through holes.

Employing the above technical scheme, the invention achieves technical advancements as follows.

The adjustable support according to the invention has high flexibility and maneuverability, applicable to any terrain condi- tions. By turning the direction of the adjustable top base, the trend and slope of any terrain can be simulated, making the opera- tion simple and flexible. The telescopic sleeve matched with the adjustable top base may precisely simulate a terrain elevation, reducing the artificial errors of artificial cement plastering in conventional methods; furthermore, the change of height of the terrain may be simulated by adjusting the telescopic sleeve. The adjustable support according to the invention may be reused, achieving maximum utilization of resources and zero discharge of pollution.

According to the invention, supporting arms on two sides of the groove of the supporting column are provided with a reinforc- ing bolt which is configured to press against the positioning bolt, ensuring the steadiness of the adjustable top base. The sup- porting column is in threaded connection with the telescopic sleeve, so that the adjustable top base can be rotated horizontal- ly by 360 degrees. The planar top seat is arranged as a circular plate structure and is provided with through holes at the periph- ery, to facilitate the connection between the adjustable support and other parts during the usage.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of the invention.

In the drawings: 1 represents a baseplate, 2 represents a telescopic sleeve, 3 represents a supporting column, 31 represents a supporting arm, 4 represents an adjustable top base, 41 repre- sents a connecting plate, 42 represents a through hole, 43 repre- sents a planar top seat, 5 represents a positioning bolt, 6 repre- sents a reinforcing bolt, and 7 represents a jackscrew.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The invention is described below in further detail in con- junction with drawings and particular embodiments.

An adjustable support for terrain simulation, whose structure is as shown in FIG. 1, includes a baseplate 1, a telescopic sleeve 2, a supporting column 3 and an adjustable top base 4; the baseplate 1 is welded to a bottom end of the telescopic sleeve and is arranged perpendicular to the telescopic sleeve; the supporting column 3 is in threaded connection with a top end of the telescop- ic sleeve 2, and the adjustable top base 4 is mounted on the sup- porting column 3.

The adjustable top base 4 includes a planar top seat 43 and a connecting plate 41, the connecting plate 41 being arranged per- pendicularly on a bottom end surface of the adjustable top base.

The planar top seat 43 according to the invention is of a circular plate structure, and a periphery of the circular plate top seat is evenly provided with a plurality of through holes 42, to fix a re- inforcing mesh and an impermeable material that are arranged above the adjustable support of the invention. Of course, the planar top seat 43 may also be of a planar structure of other shapes, such as square.

A top end of the supporting column 3 is provided with a groove which runs transversely through the top end of the support- ing column and into which the connecting plate 41 is inserted. The connecting plate 41 is positioned into the groove through a posi- tioning bolt 5 and a nut that are matched. A bottom part of the connecting plate is provided with a via hole for mounting the po- sitioning bolt, the connecting plate and the positioning bolt are mounted through an interference fit manner therebetween, to ensure that no relative displacement occurs between the connecting plate and the positioning bolt. The positioning bolt 5 is threaded into the supporting arms on two sides of the groove in a direction per-

pendicular to the groove, with one end extended out of the sup- porting arm being assembled with an anti-slip securing nut. Sup- porting arms 31 of the supporting column are provided symmetrical- ly with, along the direction of the groove, a reinforcing bolt 6 5 for pressing against the positioning bolt, thereby preventing the occurrence that the positioning bolt rotates to impact terrain simulation when the adjustable top base matched with the position- ing bolt is stressed

The telescopic sleeve in the present embodiment includes two sleeve pieces fitting into each other, and an outer wall of a low- er sleeve piece is provided with a jackscrew 7 for positioning an upper sleeve piece.

When the adjustable support according to the invention is used for building a terrain, a model area is divided into a plu- rality of rectangular grids according to the actual height and trend of the terrain, with sparse grids in the place of gentle terrain and dense grids in the place of steep terrain; then, the adjustable supports are arranged at the grid nodes, the length of the telescopic sleeve is adjusted to a corresponding terrain point according to the height at each node, and the adjustable top base is adjusted to be consistent with the terrain according to the trend of the mountainous terrain; and finally between the adjacent adjustable supports whose heights haven been determined is ar- ranged a reinforcing mesh to consolidate, after that an impermea- ble material is laid on the adjustable supports to achieve the ef- fect of terrain simulation.

The angle regulation of the adjustable top base in the verti- cal direction is achieved by rotating the positioning pin shaft, and an anti-slip securing nut is employed to fix and lock the po- sitioning pin shaft; the angle regulation of the adjustable top base in the horizontal direction is achieved through the threaded connection position between the telescopic sleeve and the support- ing column.

After the test is completed, the adjustable support according to the invention may be disassembled in turn, for reuse into other model tests of tailings ponds.

Claims

1. Adjustable support for terrain simulation in a solid model, comprising a telescopic sleeve (2) provided with a base plate (1), an upper end of the telescopic sleeve (2) being connected via a supporting column (3) to an adjustable upper end base (4) ; wherein the adjustable upper base (4) includes a flat upper seat (43) and a connecting plate (41) disposed perpendicular to a lower end surface of the adjustable upper base; wherein an upper end of the supporting column (3) is provided with a groove into which the connecting plate (41) is inserted and which passes transversely through the upper end of the supporting column, and the connecting plate (41) is placed in the groove by a positioning bolt (5) and a nut that are matched.

2. Adjustable support for terrain simulation according to claim 1, wherein support arms (31) are provided symmetrically on two sides of the groove of the supporting column, in the direction of the groove, with a reinforcing bolt (6) to rest against the positioning bolt to press.

Adjustable support for terrain simulation according to claim 1, characterized in that a lower end of the supporting column is in threaded connection with the upper end of the telescopic sleeve (2).

An adjustable support for terrain simulation according to claim 1, wherein the telescopic sleeve comprises two fitting sleeve pieces, and an outer wall of a lower sleeve piece is provided with a jack (7) for positioning an upper sleeve piece.

An adjustable terrain simulation support according to claim 1, wherein the flat upper seat (43) has a circular plate structure, and a periphery of the circular plate of the upper seat is uniformly provided with a plurality of through holes (42).