AU2021100551A4

AU2021100551A4 - Structure for controlling floor heave of roadway

Info

Publication number: AU2021100551A4
Application number: AU2021100551A
Authority: AU
Inventors: Jialin CAO; Liang Chen; Zhiheng Cheng; feng DU; Zhenhua Li; Ao PENG; Hongyan Qin; Yang Wang; Shengli Yang; Jian Zhang; Jingui ZHANG; Junwen ZHANG; Kun Zhang; Jing Zhao; Zhiqiang Zhao
Original assignee: Beijing Xinanyue Intelligent Technology Co Ltd; China University of Mining and Technology Beijing CUMTB; Henan University of Technology; North China Institute of Science and Technology
Current assignee: Beijing Xinanyue Intelligent Technology Co Ltd; China University of Mining and Technology Beijing CUMTB; Henan University of Technology; North China Institute of Science and Technology
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-04-15
Anticipated expiration: 2029-01-28

Abstract

The utility model provides a structure for controlling floor heave of a roadway, including a supporting structure and a connecting inverted arch beam, wherein the supporting structure includes a long inverted arch beam and a short inverted arch beam, the long inverted arch beam is arranged above the short inverted arch beam, two ends of the long inverted arch beam are provided with a supporting platform which abuts below a single upright post, and a first middle hole, a first side hole, and a second side hole are arranged in the long inverted arch beam; a second middle hole is arranged in the short inverted arch beam, and two end surfaces of the short inverted arch beam are provided with an inwardly concave clamping groove; the connecting inverted arch beam includes an arch beam section, a male joint part, and a female joint part; a third side hole is arranged in the male joint part, a side surface of the male joint part is provided with an arched convex ring, and a fourth side hole is arranged in the female joint part; a first anchor rod penetrates through the holes to connect the long inverted arch beam with the short inverted arch beam; and a second anchor rod and a third anchor rod connect the long inverted arch beam with the connecting inverted arch beam. The utility model also has the functions of simple structure and convenient construction, can avoid the floor heave of the roadway, and improve a supporting safety of the roadway. 1 2 3 6 4 10 7/8/9 5 FIG.1 12 2 6 4 11 6 5 8 10 7 9 FIG. 2 1

Description

1 2

3

6 4

7/8/9 5 FIG.1

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6 4 11 6 5

8 10

7 9

FIG. 2

AUSTRALIA

Patents Act 1990

COMPLETE SPECIFICATION INNOVATION PATENT STRUCTURE FOR CONTROLLING FLOOR HEAVE OF ROADWAY

The following statement is a full description of this invention, including the best

method of performing it

known to me:

STRUCTURE FOR CONTROLLING FLOOR HEAVE OF ROADWAY TECHNICAL FIELD

[0001] The utility model relates to the field of roadway supporting technologies, and

more particularly, to a structure for controlling floor heave of a roadway.

BACKGROUND

[0002] Floor heave is a common mine ground pressure phenomenon in a coal

mining roadway. With gradual development of deep mining, recovery of remaining

coal pillars, and an influence of mining of a working face, a stress environment of a

gateway and a roadway will gradually deteriorate, and the floor heave will occur from

time to time, which may cause serious shrinkage and deformation of a cross section of

the roadway, affect limitation bounds of the roadway, and hinder normal

transportation, walking, and ventilation of a mine. Especially, a soft rock roadway is

subjected to the floor heave more frequently, and suffers more serious roadway

damage.

[0003] How to solve the floor heave of the roadway is a problem solved by those

skilled in the art.

[0004] Information disclosed in the background only aims to deepen understanding

of the general background of the application, and shall not be deemed as recognizing

or implying in any form that the information constitutes the prior art well known by

those skilled in the art.

SUMMARY

[0005] The utility model aims to provide a structure for controlling floor heave of a

roadway, so as to solve a technical problem of floor heave of a roadway in the prior

art.

[0006] In order to achieve the above objective, the following technical solutions are used in the utility model.

[0007] A structure for controlling floor heave of a roadway is arranged in a bottom plate of the roadway, and the structure specifically includes a plurality of supporting structures distributed at a set length at intervals along an extending direction of the roadway and connecting inverted arch beams which connect two adjacent supporting structures, wherein,

[0008] the supporting structure includes a long inverted arch beam and a short inverted arch beam having a same curvature, the long inverted arch beam is arranged above the short inverted arch beam, two ends of the long inverted arch beam are provided with a supporting platform which abuts below a single upright post, and a first middle hole, a first side hole, and a second side hole are arranged in the long inverted arch beam; a second middle hole is arranged in the short inverted arch beam, and two end surfaces of the short inverted arch beam are provided with an inwardly concave clamping groove;

[0009] the connecting inverted arch beams abut below the long inverted arch beam and are located at two ends of the short inverted arch beam to tighten the short inverted arch beam, the connecting inverted arch beam includes an arch beam section, one end of the arch beam section is provided with a male joint part, the other end of the arch beam section is provided with a female joint part, and adjacent connecting inverted arch beams are connected in a plug-in manner through the male joint part and the female joint part; a third side hole is arranged in the male joint part, a side surface of the male joint part is provided with an arched convex ring capable of being matched with the clamping groove, and a fourth side hole is arranged in the female joint part;

[0010] a first anchor rod penetrates through the first middle hole and the second middle hole to connect the long inverted arch beam with the short inverted arch beam; and a second anchor rod and a third anchor rod respectively penetrate through the first side hole and the second side hole, as well as side holes located below the first side hole and the second side hole after the connecting inverted arch beams are connected in the plug-in manner to connect the long inverted arch beam with the connecting inverted arch beam.

[0011] Further, the supporting platforms at the two ends of the long inverted arch

beam are provided with a pit for accommodating a lower end of the single upright

post.

[0012] Further, aside wall of the pit is an inclined guide slope.

[0013] Further, the male join part includes an upper lug plate and a lower lug plate,

the third side hole is arranged in the upper lug plate and the lower lug plate, and a gap

for inserting the female joint part is arranged between the upper lug plate and the

lower lug plate.

[0014] Further, two ends of the arched convex ring are respectively fixed on the

upper lug plate and the lower lug plate through a screw.

[0015] Further, the female joint part includes a middle lug plate, and the fourth side

hole is arranged in the middle lug plate.

[0016] Further, the roadway is internally provided with atop plate, the bottom plate,

and wall plates located on two sides of the roadway, and the single upright posts are

arranged at a set distance along the extending direction of the roadway between inner

sides of the wall plates.

[0017] Further, the first anchor rod, the second anchor rod, and the third anchor rod

extend downwardly to penetrate through the bottom plate of the roadway to penetrate

into a rock mass.

[0018] By using the above technical solutions, the utility model has the following

beneficial effects.

[0019] According to the structure for controlling the floor heave of the roadway

provided by the utility model, a pressure causing the floor heave is dispersed to the

single upright post through a single supporting structure formed by the long inverted

arch beam and the short inverted arch beam to prevent occurrence of the floor heave;

adjacent supporting structures are connected through the connecting inverted arch

beams, when one supporting structure is subjected to an upward pressure from the rock mass, the pressure is dispersed to the adjacent supporting structure through the connecting inverted arch beams, thus effectively sharing a local pressure, and avoiding the single supporting structure from bearing an excessive pressure to damage the supporting structure; and matching of the clamping groove and the arched convex s ring can fix the short inverted arch beam, thus avoiding the short inverted arch beam from moving after being pressed so that the pressure cannot be smoothly transmitted to the long inverted arch beam, and the long inverted arch beam, the short inverted arch beam, and the connecting inverted arch beams are connected and fixed through the three anchor rods.

[0020] The pit on the supporting platform can limit a moving range of the single

upright post.

[0021] The guide slope of the side wall of the pit makes the single upright post

easier to reset even if the single upright post is misaligned with the supporting

platform, and enter the pit.

[0022] Specific structural forms of the male joint part and the female joint part are

convenient for quick connection of two adjacent connecting inverted arch beams.

[0023] The anchor rod downwardly extends into the rock mass, which can reduce

occurrence of the floor heave to a certain extent.

[0024] The utility model also has functions of a simple structure, convenient

construction, a capability of avoiding the floor heave of the roadway, and

improvement of supporting safety of the roadway.

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to illustrate the specific implementation manners of the utility model

or the technical solutions of the prior art more clearly, the accompanying drawings

which need to be used in describing the specific implementation manners or the prior

art will be briefly introduced hereinafter. Apparently, the accompanying drawings

described hereinafter are some implementation manners of the utility model, and

those of ordinary skills in the art may further obtain other accompanying drawings according to these accompanying drawings without going through any creative work.

[0026] FIG. 1 is one schematic diagram of a structure for controlling floor heave of a

roadway provided by an embodiment of the utility model;

[0027] FIG. 2 is another schematic diagram of the structure for controlling the floor

heave of the roadway provided by the embodiment of the utility model;

[0028] FIG. 3 is a schematic cross-sectional view of a long inverted arch beam

provided by the embodiment of the utility model;

[0029] FIG. 4 is a schematic cross-sectional view of a short inverted arch beam and

connecting inverted arch beams provided by the embodiment of the utility model; and

[0030] FIG. 5 is a schematic diagram of connection between the connecting inverted

arch beams provided by the embodiment of the utility model.

[0031] Numerals 1 refers to top plate; 2 refers to single upright post; 3 refers to

roadway; 4 refers to long inverted arch beam; 5 refers to bottom plate; 6 refers to

connecting inverted arch beam; 7 refers to first anchor rod; 8 refers to second anchor

rod; 9 refers to third anchor rod; 10 refers to rock mass; 11 refers to short inverted

arch beam; 12 refers to wall plate; 13 refers to supporting platform; 14 refers to first

side hole; 15 refers to second side hole; 16 refers to pit; 17 refers to second middle

hole; 18 refers to clamping groove; 19 refers to arched convex ring; 20 refers to male

joint part; 21 refers to female joint part; 22 refers to third side hole; 23 refers to fourth

side hole; 24 refers to upper lug plate; 25 refers to lower lug plate; 26 refers to middle

lug plate; 27 refers to screw; and 28 refers to arch beam section.

DETAILED DESCRIPTION

[0032] The technical solutions of the utility model are clearly and completely

described hereinafter with reference to the accompanying drawings. Apparently, the

described embodiments are only some but not all of the embodiments of the utility

model. Based on the embodiments of the utility model, all other embodiments

obtained by those of ordinary skills in the art without going through any creative work

shall fall within the scope of protection of the utility model.

[0033] In the description of the utility model, it shall be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside". "outside", and the like is based on the orientation or position relationship shown in the accompanying drawings, it is only for the convenience of description of the utility model and simplification of the description, and it is not to indicate or imply that the indicated device or element must have a specific orientation, and be constructed and operated in a specific orientation. Therefore, the terms shall not be understood as limiting the utility model. Moreover, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it shall be noted that the terms "installation", "connected" and "connection" if any shall be understood in a broad sense unless otherwise specified and defined. For example, they may be fixed connection, removable connection or integrated connection; may be mechanical connection or electrical connection; and may be direct connection, or indirect connection through an intermediate medium, and connection inside two elements. The specific meanings of the above terms in the utility model may be understood in a specific case by those of ordinary skills in the art.

[0035] The specific implementation manners of the utility model are further described in detail hereinafter with reference to the accompanying drawings. It shall be understood that the specific implementation manners described herein are only used for explaining the utility model and are not intended to limit the utility model.

[0036] FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 5 show specific implementation manners of a structure for controlling floor heave of a roadway of the utility model, in the embodiment, the structure is prefabricated in a bottom plate 5 of the roadway, and the structure specifically includes a plurality of supporting structures distributed at a set length at intervals along an extending direction (a left-right direction in FIG. 1) of the roadway 3 and connecting inverted arch beams 6 which connect two adjacent supporting structures.

[0037] The supporting structure specifically includes a long inverted arch beam 4

and a short inverted arch beam 11, and the long inverted arch beam 4 and the short

inverted arch beam 11 are made of a steel material. When the long inverted arch beam

4 and the short inverted arch beam 11 have a same curvature, the long inverted arch

beam 4 is arranged above the short inverted arch beam 11, so that the short inverted

arch beam 11 attaches to a lower surface of the long inverted arch beam 4. Two ends

of the long inverted arch beam 4 are provided with a supporting platform 13, and an

upper supporting surface of the supporting platform 13 is larger than a lower end

surface of a single upright post 2, so that the single upright post 2 can be pressed on

the supporting platform 13. A first middle hole 13, a first side hole 14, and a second

side hole 15 are arranged in the long inverted arch beam 4, and the first side hole 14

and the second side hole 15 are respectively arranged on left and right sides of the

first middle hole 13. A second middle hole 17 is arranged in the short inverted arch

beam 11, and two end surfaces of the short inverted arch beam 11 are provided with

an inwardly concave clamping groove 18.

[0038] The connecting inverted arch beams 6 abut below the long inverted arch

beam 4 and are located at two ends of the short inverted arch beam 11, and two

connecting inverted arch beams 6 tighten the short inverted arch beam 11 at the

middle. The connecting inverted arch beam 6 includes an arch beam section 28, one

end of the arch beam section 28 is provided with a male joint part 20, the other end of

the arch beam section 28 is provided with a female joint part 21, and two adjacent

connecting inverted arch beams 6 are connected in a plug-in manner through the male

joint part 20 and the female joint part 21. A third side hole 22 is arranged in the male

joint part 20, a side surface of the male joint part 20 is provided with an arched

convex ring 19 capable of being matched with the clamping groove 18, and a fourth

side hole 23 is arranged in the female joint part 21.

[0039] A first anchor rod 7 penetrates through the first middle hole 13 and the

second middle hole 17 to connect the long inverted arch beam 4 with the short

inverted arch beam 11. A second anchor rod 8 and a third anchor rod 9 respectively penetrate through the first side hole 14 and the second side hole 15, as well as side holes located below the first side hole 14 and the second side hole 15 after the connecting inverted arch beams 6 are connected in the plug-in manner to connect the long inverted arch beam 4 with the connecting inverted arch beam 6.

[0040] Technical terms used in the specification of the disclosure are explained as

follows:

[0041] According to the structure for controlling the floor heave of the roadway in

the embodiment, a pressure of a rock mass 10 causing the floor heave is dispersed to

the single upright post 2 through the single supporting structure formed by the long

inverted arch beam 4 and the short inverted arch beam 11 to prevent occurrence of the

floor heave. Adjacent supporting structures are connected through the connecting

inverted arch beams 6, when one supporting structure is subjected to an upward

pressure from the rock mass, the pressure is dispersed to the adjacent supporting

structure through the connecting inverted arch beams 6, thus effectively sharing a

local pressure, and avoiding the single supporting structure from bearing an excessive

pressure to damage the supporting structure. Matching of the clamping groove 18 and

the arched convex ring 19 can fix the short inverted arch beam 11, thus avoiding the

short inverted arch beam from moving after being pressed so that the pressure cannot

be smoothly transmitted to the long inverted arch beam 4, and the long inverted arch

beam 4, the short inverted arch beam 11, and the connecting inverted arch beams 6 are

connected and fixed through the three anchor rods 7, 8, and 9.

[0042] In another more preferred embodiment, the supporting platforms 13 at the

two ends of the long inverted arch beam 4 are provided with a pit 16 for

accommodating a lower end of the single upright post 16. The pit 16 on the

supporting platform 13 can limit a moving range of the single upright post 2.

[0043] In another more preferred embodiment, a side wall of the pit 16 is an inclined

guide slope, which makes the single upright post 2 easier to reset even if the single

upright post 2 is misaligned with the supporting platform 13, and enter the pit 16.

[0044] In another more preferred embodiment, the male join part 20 specifically includes an upper lug plate 24 and a lower lug plate 25, the third side hole 22 is arranged in the upper lug plate 24 and the lower lug plate 25, and a gap for inserting the female joint part 21 is arranged between the upper lug plate 24 and the lower lug plate 25.

[0045] In another more preferred embodiment, two ends of the arched convex ring

19 are respectively fixed on the upper lug plate 24 and the lower lug plate 25 through

a screw 27.

[0046] In another more preferred embodiment, the female joint part 21 includes a

middle lug plate 26, and the fourth side hole 23 is arranged in the middle lug plate 26.

Specific structural forms of the male joint part 20 and the female joint part 21 are

convenient for quick connection of two adjacent connecting inverted arch beams 6.

[0047] In another more preferred embodiment, the roadway 3 is internally provided

with a top plate 1, the bottom plate 5, and wall plates 13 located on two sides of the

roadway 3, and the single upright posts 2 are arranged at a set distance along the

extending direction of the roadway 3 between inner sides of the wall plates 12.

[0048] In another more preferred embodiment, the first anchor rod 7, the second

anchor rod 8, and the third anchor rod 9 extend downwardly to penetrate through the

bottom plate 5 of the roadway 3 to penetrate into a rock mass 10. The anchor rod

downwardly extends into the rock mass 10, which can reduce occurrence of the floor

heave to a certain extent.

[0049] Finally, it should be noted that the above embodiments are only used to

illustrate the technical solutions of the utility model, and are not intended to limit the

utility model. Although the utility model is described in detail with reference to the

above embodiments, those of ordinary skills in the art should understand that the

technical solutions recorded in the above embodiments can still be modified, or some

or all of the technical features are equivalently substituted. However, these

modifications or substitutions do not make the essence of the corresponding technical

solutions deviate from the scope of the technical solutions of the embodiments of the

utility model.

The claims for defining the invention are as follows:

1. A structure for controlling floor heave of a roadway, the structure being arranged

in a bottom plate of the roadway, wherein the structure specifically comprises a

plurality of supporting structures distributed at a set length at intervals along an

extending direction of the roadway and connecting inverted arch beams which

connect two adjacent supporting structures, wherein,

the supporting structure comprises a long inverted arch beam and a short inverted

arch beam having a same curvature, the long inverted arch beam is arranged above the

short inverted arch beam, two ends of the long inverted arch beam are provided with a

supporting platform which abuts below a single upright post, and a first middle hole, a

first side hole, and a second side hole are arranged in the long inverted arch beam; a

second middle hole is arranged in the short inverted arch beam, and two end surfaces

of the short inverted arch beam are provided with an inwardly concave clamping

groove;

the connecting inverted arch beams abut below the long inverted arch beam, and

are located at two ends of the short inverted arch beam to tighten the short inverted

arch beam, the connecting inverted arch beam comprises an arch beam section, one

end of the arch beam section is provided with a male joint part, the other end of the

arch beam section is provided with a female joint part, and adjacent connecting

inverted arch beams are connected in a plug-in manner through the male joint part and

the female joint part; a third side hole is arranged in the male joint part, a side surface

of the male joint part is provided with an arched convex ring capable of being

matched with the clamping groove, and a fourth side hole is arranged in the female

joint part;

a first anchor rod penetrates through the first middle hole and the second middle

hole to connect the long inverted arch beam with the short inverted arch beam; and a

second anchor rod and a third anchor rod respectively penetrate through the first side

hole and the second side hole, as well as side holes located below the first side hole

and the second side hole after the connecting inverted arch beams are connected in the

Claims

plug-in manner to connect the long inverted arch beam with the connecting inverted

arch beam.
2. The structure for controlling the floor heave of the roadway according to claim 1,

wherein the supporting platforms at the two ends of the long inverted arch beam are

provided with a pit for accommodating a lower end of the single upright post.
3. The structure for controlling the floor heave of the roadway according to claim 2,

wherein a side wall of the pit is an inclined guide slope.
4. The structure for controlling the floor heave of the roadway according to claim 1,

wherein the male join part comprises an upper lug plate and a lower lug plate, the

third side hole is arranged in the upper lug plate and the lower lug plate, and a gap for

inserting the female joint part is arranged between the upper lug plate and the lower

lug plate.
5. The structure for controlling the floor heave of the roadway according to claim 4,

wherein two ends of the arched convex ring are respectively fixed on the upper lug

plate and the lower lug plate through a screw.
6. The structure for controlling the floor heave of the roadway according to claim 4,

wherein the female joint part comprises a middle lug plate, and the fourth side hole is

arranged in the middle lug plate.
7. The structure for controlling the floor heave of the roadway according to claim 1,

wherein the roadway is internally provided with a top plate, the bottom plate, and wall

plates located on two sides of the roadway, and the single upright posts are arranged at

a set distance along the extending direction of the roadway between inner sides of the

wall plates.
8. The structure for controlling the floor heave of the roadway according to claim 1,

wherein the first anchor rod, the second anchor rod, and the third anchor rod extend

downwardly to penetrate through the bottom plate of the roadway to penetrate into a

rock mass.

FIG. 1

FIG. 2

FIG. 5 FIG. 4 FIG. 3