CN216446937U - Steel pipe concrete column-profile steel combined portal support for roadway - Google Patents
Steel pipe concrete column-profile steel combined portal support for roadway Download PDFInfo
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- CN216446937U CN216446937U CN202123242674.7U CN202123242674U CN216446937U CN 216446937 U CN216446937 U CN 216446937U CN 202123242674 U CN202123242674 U CN 202123242674U CN 216446937 U CN216446937 U CN 216446937U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 198
- 239000010959 steel Substances 0.000 title claims abstract description 198
- 239000011435 rock Substances 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 239000011440 grout Substances 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The utility model discloses a steel pipe concrete column-profile steel combined portal bracket for a roadway, which consists of a steel pipe concrete column, a longitudinal connecting rod and profile steel, wherein: the concrete-filled steel tube columns are fixed on a bottom plate of the roadway, a row of the concrete-filled steel tube columns are longitudinally arranged on the left side and the right side of the section of the roadway along the roadway, and the concrete-filled steel tube columns support a supporting structure of a roadway side part or directly support surrounding rocks of the roadway side part; the longitudinal connecting rod is connected with two adjacent steel pipe concrete columns in the same row; the shaped steel both ends are fixed on the top of both sides steel core concrete column through dismantling the articulate, and the shaped steel supports tunnel roof supporting construction, perhaps directly supports tunnel roof country rock. The utility model designs a steel pipe concrete column-profile steel combined portal type support which is used for supporting a roadway with a rectangular section and can simply and quickly complete supporting. The support system can fully bear the pressure of surrounding rocks, and is combined with the advance support of the anchor rod, so that the displacement of the top and bottom plates of the roadway is effectively limited, the service life of the excavated roadway is prolonged, and the support cost is reduced.
Description
Technical Field
The utility model belongs to the field of coal mine roadway support, and particularly relates to a steel pipe concrete column-profile steel combined door type support for a roadway.
Background
The roadway excavation is an important part in the production of coal resources, and comprehensive investigation on the conditions of partial development and the maintenance of a stoping roadway finds that when the coal gas treatment roadway and the coal face are arranged on the same layer, the deformation is large due to the influence of the lateral bearing pressure of the face, so that the recycling of the whole roadway is difficult, and the mine excavation and replacement are seriously influenced.
At present, aiming at the large deformation and damage conditions of a roadway which is influenced by multiple dynamic pressures and difficult to support, the traditional anchor bolt support theory and technology are difficult to meet the support requirement of the roadway in a service period, and multiple repair is often needed, so that the support cost is greatly increased, the tunneling efficiency and safety of roadway engineering are reduced, the mine excavation continuation is influenced, and safety accidents can be caused under extreme conditions.
In addition, for the bottom suction roadway affected by mining, the effect of common anchor rod and anchor cable support is general, and the roadway is possibly abandoned due to large deformation and serious damage in some cases.
Disclosure of Invention
Based on the problems, the utility model provides the steel pipe concrete column-profile steel combined door type support for the roadway, which can increase the roadway support safety, effectively control the roadway deformation and improve the support efficiency of a newly excavated roadway of a mine; the service period of the excavated roadway is prolonged, the maintenance cost is reduced, maintenance is basically not needed during the multi-working-face period of the gas control roadway service, and the method has great economic significance and popularization value.
The above purpose can be realized by the following technical scheme:
the utility model provides a steel pipe concrete column-profile steel combined portal bracket for a roadway, which consists of a steel pipe concrete column, a longitudinal connecting rod and profile steel, wherein:
the steel pipe concrete columns are fixed on a roadway bottom plate, a row of steel pipe concrete columns are respectively arranged on the left side and the right side of the section of the roadway along the longitudinal direction of the roadway, and the steel pipe concrete columns support a roadway side supporting structure or directly support surrounding rocks of the roadway side;
the longitudinal connecting rod is connected with two adjacent steel pipe concrete columns in the same row;
the shaped steel both ends are fixed on the top of both sides steel core concrete column through dismantling the articulate, form the portal frame, and the shaped steel supports tunnel roof supporting construction, perhaps directly supports tunnel roof country rock.
Preferably, the concrete filled steel tubular column is composed of a circular hollow steel tube and fast hardening concrete poured inside the steel tube.
Preferably, a grouting opening is reserved on the round hollow steel pipe.
Preferably, a tray and reinforcing ribs are welded on the pipe body of the round hollow steel pipe, the reinforcing ribs support the tray, and the tray is connected with and supports the end part of the longitudinal connecting rod.
Preferably, a first bolt hole is formed in the tray, the longitudinal connecting rod is a channel steel, the end portion of the channel steel is correspondingly provided with a bolt hole, and the longitudinal connecting rod is connected and fixed on the tray through a bolt.
Preferably, the welded end of the tray and the pipe body of the round hollow steel pipe is arc-shaped, and the arc-shaped end is matched with the pipe body of the round hollow steel pipe.
Preferably, the section steel is channel steel.
Preferably, the detachable joint is: the top of the round hollow steel pipe is provided with a section of external thread which is connected with the top end of the round hollow steel pipe and the section steel through a flange.
Preferably, a plurality of second bolt holes are formed in the disc at the top of the flange, an exhaust and grout discharging hole is formed in the center of the disc, a plurality of third bolt holes and an exhaust and grout discharging hole are correspondingly formed in the end portion of the channel steel, an internal thread is arranged at a seam allowance at the bottom of the flange, the flange passes through the third bolt holes and the second bolt holes to be connected with the disc at the top of the flange, and the seam allowance at the bottom of the flange is connected with a circular hollow steel pipe through threads.
Preferably, the detachable joint is: the circular hollow steel pipe top is processed there is one section breach, and the pipe wall correspondence of breach both sides has seted up the fourth bolt hole, and the bottom of channel-section steel both ends respectively welds has two vertical steel sheets, and the fifth bolt hole has been seted up to the correspondence on the vertical steel sheet, and the channel-section steel is placed in the breach, passes fifth bolt hole and fourth bolt hole connection channel-section steel and circular hollow steel pipe through the bolt.
Compared with the prior art, the utility model has the following beneficial effects:
1. aiming at the roadway with the rectangular section, the utility model provides the portal type support, which can simply and quickly complete support and can save cost and labor;
2. the steel pipe concrete columns at two ends in the supporting system can fully bear the pressure of surrounding rocks, the bending resistance effect of channel steel at the top is good, and the deformation of a roadway can be effectively limited by combining the steel pipe concrete columns and the channel steel;
3. for the bottom suction roadway affected by mining, the supporting mode can effectively reserve the roadway, prolong the service life of the roadway, can be used as the crossheading of the lower coal seam, realizes multiple purposes of one roadway, reduces the excavation quantity of the roadway, reduces the resource loss of coal pillars and reduces the maintenance cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, shall fall within the scope covered by the technical contents disclosed in the present invention.
FIG. 1 is a schematic overall front view of one embodiment;
FIG. 2 is a schematic side view of FIG. 1;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
FIG. 4 is a schematic diagram of a tray structure of one embodiment;
FIG. 5 is a schematic structural view of a section steel according to an embodiment;
FIG. 6 is a schematic view of a flange structure according to an embodiment, wherein (a) is a side view and (b) is a top view;
FIG. 7 is an overall front view of another embodiment;
FIG. 8 is a side view of FIG. 7;
FIG. 9 is a schematic view of an end portion of a steel pipe according to another embodiment, wherein (a) is a schematic cross-sectional view, (b) is a schematic front view, and (c) is a schematic side view;
FIG. 10 is a schematic structural view of another embodiment of a section steel and a vertical steel plate;
FIG. 11 is a schematic view of another embodiment of a vertical steel plate deformation structure;
fig. 12 is a structural diagram of a combined supporting system in a supporting state.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention is described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "center," and the like are used in an orientation or positional relationship illustrated in the drawings for convenience in describing and simplifying the utility model, and do not indicate or imply that the device, component, or structure being referred to must have a particular orientation, be constructed in a particular orientation, or be operated in a particular manner, and should not be construed as limiting the utility model.
The following describes the implementation of the present invention in detail with reference to preferred embodiments.
Referring to fig. 1 and 2, a steel pipe concrete column-section steel combined portal frame for a roadway is composed of a steel pipe concrete column 1, a longitudinal connecting rod 4 and section steel 2, wherein:
the steel tube concrete columns 1 are fixed on a roadway bottom plate, a row of steel tube concrete columns are respectively arranged on the left side and the right side of the section of the roadway along the longitudinal direction of the roadway, and the steel tube concrete columns 1 support a roadway side supporting structure or directly support surrounding rocks of the roadway side;
the longitudinal connecting rod 4 is connected with two adjacent steel pipe concrete columns 1 in the same row;
the two ends of the section steel 2 are connected and fixed on the top ends of the steel tube concrete columns 1 on the two sides through detachable joints, and the section steel 2 supports a roadway roof supporting structure or directly supports roadway roof surrounding rocks.
The concrete-filled steel tubular column-profile steel combined supporting system overcomes the problems of a common concrete-filled steel tubular column support, can be assembled and formed in an underground roadway, has a simple structure, is convenient and fast to construct, can save cost, is consistent with the shape of the section of the roadway in the whole supporting system, can adapt to the deformation of the surrounding rock by tightly attaching the concrete-filled steel tubular column 1 and the profile steel 2 to the surrounding rock or supporting the concrete-filled steel tubular column and the profile steel 2 on a roadway supporting structure, improves the tunneling efficiency and the safety of roadway engineering, does not influence the mine excavation continuation, and can effectively support the roadway.
Specifically, the concrete-filled steel tubular column 1 is composed of a circular hollow steel tube and fast hardening concrete poured inside the steel tube. The circular hollow steel pipe is convenient to construct, and the fast-hardening concrete can meet the requirement of fast supporting of a roadway.
Preferably, a grouting opening 5 is reserved on the round hollow steel pipe so as to be convenient for pouring concrete into the steel pipe. The grouting opening is formed by a hollow steel pipe section, welded at the middle lower part of the outer wall of the round hollow steel pipe and communicated with the inside of the round hollow steel pipe.
With continued reference to fig. 3, a tray 6 and a reinforcing rib 7 are welded on the pipe body of the round hollow steel pipe, the reinforcing rib 7 supports the tray 6, and the tray 6 is connected with and supports the end part of the longitudinal connecting rod 4. The trays 6 are welded on the outer wall of the round hollow steel pipe, and two groups of trays are arranged on the height of the steel pipe and are respectively positioned on the upper pipe wall and the lower pipe wall; the reinforcing ribs 7 are also welded on the outer wall of the round hollow steel pipe and are close to the lower part of the tray 6, and two reinforcing ribs 7 are welded on the lower part of each tray 6.
The reinforcing rib 7 is a triangular steel plate, one side of the reinforcing rib is attached to the outer wall of the steel pipe, the other side of the reinforcing rib supports the tray 6, and the triangular steel plate can provide enough supporting strength.
Specifically, as shown in fig. 4, the tray 6 is made of a steel bar plate, a first bolt hole 8 is formed in the steel bar plate, the longitudinal connecting rod 4 is a channel steel, bolt holes are correspondingly formed in the end portions of the channel steel, and the longitudinal connecting rod 4 is connected and fixed to the tray 6 through bolts.
The preferred, tray 6 is the arc with the pipe shaft welded one end design of circular hollow steel pipe, for example semi-circular arc, and the arc matches with the pipe shaft of circular hollow steel pipe, can guarantee joint strength and stability with the pipe wall seamless fit of circular hollow steel pipe.
The round table type base 3 can be arranged at the bottom of the round hollow steel pipe, and reinforcing ribs are welded at the round table at the bottom of the round hollow steel pipe and are uniformly arranged along the circumference, and four channels are arranged to ensure the stability of the steel pipe column support.
Referring to fig. 5 and 6 again, the section steel 2 of the present invention is a channel steel.
One embodiment of a detachable joint is: the top of the round hollow steel pipe is provided with a section of external thread which is connected with the top end of the round hollow steel pipe and the section steel 2 through a flange 9.
Specifically, a plurality of second bolt holes 10 have been seted up to flange top disc, and an exhaust row of thick liquid hole 11 has been seted up at the disc center, and a plurality of third bolt holes 12 and an exhaust row of thick liquid hole 13 have been seted up to the channel-section steel tip correspondence, and flange bottom tang is equipped with the internal thread, passes third bolt hole 12 and second bolt hole 10 through the bolt and connects channel-section steel and flange top disc, and flange bottom tang passes through the circular hollow steel pipe of threaded connection, as shown in fig. 1, fig. 2. Through flange joint channel-section steel and steel pipe, the construction is convenient, and easy operation can realize higher joint strength through adopting the high-strength bolt, can realize fast-assembling and quick detach, but reuse has reduced and has strutted the cost.
Referring to fig. 7-10, another detachable joint is disclosed: the circular hollow steel pipe top is processed there is one section breach 14, and the pipe wall correspondence of breach both sides has seted up fourth bolt hole 15, and two vertical steel sheets 16 have respectively been welded to channel-section steel both ends bottom, and fifth bolt hole 17 has been seted up to the correspondence on the vertical steel sheet 16, and the channel-section steel is placed in the breach, passes fifth bolt hole 17 and fourth bolt hole 15 through the bolt and connects channel-section steel and circular hollow steel pipe.
As shown in fig. 11, the vertical steel plate 16 may be an arc-shaped steel plate, the arc-shaped steel plate can be seamlessly attached to the pipe wall of the circular hollow steel pipe, one fifth bolt hole 17 is formed in the arc-shaped steel plate and is formed in the middle of the arc-shaped steel plate, and one fourth bolt hole 15 is formed in the top end of the corresponding circular hollow steel pipe, so that bolts can be conveniently inserted and fixed.
The common concrete-filled steel tube support is mostly circular or oval, and is not particularly suitable for rectangular roadways. As shown in fig. 12, the steel pipe concrete column-profile steel combined portal support is designed for a tunnel with a rectangular cross section, the whole support is of a rectangular frame structure and is used for supporting the tunnel with the rectangular cross section, the steel pipe concrete column 1 can be supported on a supporting structure of a tunnel side part or directly supports surrounding rocks of the tunnel side part, the profile steel 2 can be supported on a supporting structure of a tunnel top plate or directly supports the surrounding rocks of the tunnel top plate, supporting can be simply and rapidly completed, and cost and labor can be saved.
The support system can fully bear the pressure of surrounding rocks, and is combined with the advance support of the anchor rod, so that the displacement of the top and bottom plates of the roadway is effectively limited, the service life of the excavated roadway is prolonged, and the support cost is reduced.
It will be readily appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a concrete filled steel tubular column-shaped steel combination gate-type support for tunnel which characterized in that comprises concrete filled steel tubular column, vertical connecting rod and shaped steel, wherein:
the steel pipe concrete columns are fixed on a roadway bottom plate, a row of steel pipe concrete columns are respectively arranged on the left side and the right side of the section of the roadway along the longitudinal direction of the roadway, and the steel pipe concrete columns support a roadway side supporting structure or directly support surrounding rocks of the roadway side;
the longitudinal connecting rod is connected with two adjacent steel pipe concrete columns in the same row;
the shaped steel both ends are fixed on the top of both sides steel core concrete column through dismantling the articulate, form the portal frame, and the shaped steel supports tunnel roof supporting construction, perhaps directly supports tunnel roof country rock.
2. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 1, which is characterized in that:
the concrete-filled steel tube column is composed of a round hollow steel tube and quick-hardening concrete poured inside the steel tube.
3. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 2, which is characterized in that:
and a grouting opening is reserved on the round hollow steel pipe.
4. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 2, which is characterized in that:
the pipe body of the round hollow steel pipe is welded with a tray and reinforcing ribs, the reinforcing ribs support the tray, and the tray is connected with and supports the end part of the longitudinal connecting rod.
5. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 4, which is characterized in that:
the tray is provided with a first bolt hole, the longitudinal connecting rod is a channel steel, the end part of the channel steel is correspondingly provided with a bolt hole, and the longitudinal connecting rod is connected and fixed on the tray through a bolt.
6. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 4, which is characterized in that:
the tray is arc-shaped with the pipe shaft welded end of circular hollow steel pipe, and the arc matches with the pipe shaft of circular hollow steel pipe.
7. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 2, which is characterized in that:
the section steel is channel steel.
8. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 7, which is characterized in that:
the detachable joint is as follows: the top of the round hollow steel pipe is provided with a section of external thread which is connected with the top end of the round hollow steel pipe and the section steel through a flange.
9. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway of claim 8, which is characterized in that:
a plurality of second bolt holes are formed in the disc at the top of the flange, an exhaust and grout exhaust hole is formed in the center of the disc, a plurality of third bolt holes and an exhaust and grout exhaust hole are correspondingly formed in the end portion of the channel steel, an internal thread is formed in a spigot at the bottom of the flange, the flange passes through the third bolt holes and the second bolt holes through bolts to be connected with the disc at the top of the flange, and the spigot at the bottom of the flange is connected with the circular hollow steel pipe through threads.
10. The concrete-filled steel tubular column-section steel combined portal bracket for the roadway according to claim 7, which is characterized in that:
the detachable joint is as follows: the circular hollow steel pipe top is processed there is one section breach, and the pipe wall correspondence of breach both sides has seted up the fourth bolt hole, and the bottom of channel-section steel both ends respectively welds has two vertical steel sheets, and the fifth bolt hole has been seted up to the correspondence on the vertical steel sheet, and the channel-section steel is placed in the breach, passes fifth bolt hole and fourth bolt hole connection channel-section steel and circular hollow steel pipe through the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123242674.7U CN216446937U (en) | 2021-12-22 | 2021-12-22 | Steel pipe concrete column-profile steel combined portal support for roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123242674.7U CN216446937U (en) | 2021-12-22 | 2021-12-22 | Steel pipe concrete column-profile steel combined portal support for roadway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216446937U true CN216446937U (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123242674.7U Active CN216446937U (en) | 2021-12-22 | 2021-12-22 | Steel pipe concrete column-profile steel combined portal support for roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216446937U (en) |
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2021
- 2021-12-22 CN CN202123242674.7U patent/CN216446937U/en active Active
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