CN212508349U - Steel shed for supporting high-ground-pressure soft rock roadway - Google Patents
Steel shed for supporting high-ground-pressure soft rock roadway Download PDFInfo
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- CN212508349U CN212508349U CN202021246768.4U CN202021246768U CN212508349U CN 212508349 U CN212508349 U CN 212508349U CN 202021246768 U CN202021246768 U CN 202021246768U CN 212508349 U CN212508349 U CN 212508349U
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Abstract
The utility model relates to the technical field of mine tunnel safety support, and discloses a steel shed for high-ground pressure soft rock tunnel support; the problems that a supporting structure for a high-ground-pressure soft rock roadway is unstable and bottom heave is easy to generate are solved; the technical scheme is as follows: the two bottom ends of the steel shed top are respectively connected with steel shed legs through U-shaped clamping cables, the bottom ends of the steel shed legs are fixedly connected with sizing blocks, the steel shed legs are fixedly provided with U-shaped steel stop blocks at the junctions of the floor of the roadway, and U-shaped steel bottom beams are fixed between the sizing blocks and the U-shaped steel stop blocks on the two sides of the roadway to form a U-shaped steel shed supporting whole body; the utility model has the characteristics of stable in structure, safe and reliable, pucking control effect are good etc.
Description
Technical Field
The utility model belongs to the technical field of mine tunnel safety support, concretely relates to steel canopy that soft rock roadway was strutted to high ground pressure.
Background
The conventional arch U-shaped steel shed support is widely applied to the soft roadway of surrounding rocks, and when the local pressure is large, the roadway is very easy to bulge, so that the net sectional area of the roadway is reduced, the ventilation and transportation of the roadway are influenced, and even the whole roadway can be scrapped. Therefore, the technical problem to be solved urgently is to reasonably support the high-pressure soft rock roadway to control the bottom heave and prevent the roadway from deforming. The method for controlling the roadway floor heave in the prior engineering mainly comprises the steps of integrally pouring concrete on a roadway floor and additionally arranging an I-shaped steel bottom beam, and the two methods have certain defects. When the concrete is adopted for integral casting, the strength of the concrete is utilized to control the floor heave of the roadway, the ground pressure control capability is low, and the strength of the concrete is reduced along with the change of the transportation strength of the roadway, the change of the ground pressure and the prolonging of time, so that the bottom plate is cracked and damaged, and the repair cost is high; when an I-shaped steel bottom beam is additionally arranged, the strength defect of concrete during integral casting is made up to a certain extent, but the I-shaped steel bottom beam and U-shaped steel shed legs on the two sides of the roadway are not easy to fix, and the stability of the roadway is difficult to guarantee when the ground pressure is large.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the deficiencies in the prior art, a stable in structure, the effectual steel canopy of pucking control for high earth pressure soft rock roadway support is provided.
The utility model discloses a realize through following technical scheme.
A steel shed for supporting a high-earth pressure soft rock roadway comprises a steel shed top, U-shaped clamp cables, steel shed legs, a sizing block, U-shaped steel stop blocks and U-shaped steel bottom beams; two bottoms on steel shed roof are connected with the steel shed leg through U type card cable respectively, the bottom fixed connection of steel shed leg the parallels, the steel shed leg is fixed in tunnel terrace junction and is provided with U shaped steel dog, U shaped steel floorbar is fixed in between the parallels and the U shaped steel dog of tunnel both sides, constitutes a U shaped steel canopy and struts wholly.
Furthermore, U-shaped occlusion is formed between the steel shed roof and the steel shed legs, between the U-shaped steel stop block and the U-shaped steel bottom beam and between the steel shed legs and the U-shaped steel bottom beam.
Furthermore, the U-shaped steel bottom beam is of an inverted arch structure, and two ends of the U-shaped steel bottom beam are in a U-shaped opening shape.
Furthermore, two bottom ends of the steel shed top are connected with the steel shed legs through a plurality of U-shaped clamping cables respectively.
Furthermore, the bottom ends of the steel shed legs are welded with the sizing blocks.
Furthermore, the U-shaped steel stop block is welded on the steel shed leg.
The utility model discloses produced beneficial effect for prior art does:
the utility model adopts U-shaped steel processing to manufacture the steel shed roof, the steel shed legs, the U-shaped steel stop blocks and the U-shaped steel bottom beams, so that the connection between the components is all U-shaped occlusion, and the stability of the whole steel shed is ensured; the U-shaped steel bottom beam is processed into an inverted arch shape, so that the ground pressure strength of the roadway can be effectively controlled, and the control effect of the floor heave is good; cut into U type mouth form with U shaped steel floorbar both ends, be fixed in between the parallels of tunnel both sides steel canopy leg and the U shaped steel dog for U shaped steel floorbar and steel canopy leg U type interlock, and be equipped with the upward movement of U shaped steel dog restriction U shaped steel floorbar, guaranteed the stability and the pucking controllability of steel canopy more. The utility model has the characteristics of stable in structure, safe and reliable, pucking control effect are good etc.
Drawings
Fig. 1 is the structural schematic diagram of the steel shed of the utility model.
Wherein, 1 is the steel shed roof, 2 is U type card cable, 3 are steel shed legs, 4 are the parallels, 5 are U shaped steel dog, 6 are U shaped steel floorbar.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in figure 1, the roadway support steel shed is particularly suitable for high-ground pressure soft rock roadways, and comprises a steel shed roof 1, U-shaped clamping cables 2, steel shed legs 3, a sizing block 4, U-shaped steel stoppers 5 and U-shaped steel bottom beams 6. The bottom of steel shed roof 1 respectively links through three U type card cable 2 with the steel shed leg 3 of both sides, and a parallels 4 is welded to the bottom of steel shed leg 3, and a U shaped steel dog 5 is welded at tunnel terrace position to steel shed leg 3, and U shaped steel floorbar 6 is fixed in between parallels 4 and the U shaped steel dog 5 of tunnel both sides steel shed leg 3, constitutes a U shaped steel canopy and struts wholly.
When the steel shed is processed on site, the steel shed roof 1, the steel shed legs 3, the U-shaped steel stop blocks 5 and the U-shaped steel bottom beams 6 are all processed and manufactured by adopting U-shaped steel of the same type; the U-shaped steel bottom beam 6 is processed into an inverted arch shape, and two ends of the U-shaped steel bottom beam are cut into a U-shaped mouth shape. Ensure that the connection between the steel shed components is all U-shaped occlusion, ensure the stability of the whole steel shed.
When the steel shed is constructed on site, the lengths and the radians of the steel shed roof 1, the steel shed legs 3 and the U-shaped steel bottom beams 6 are set according to the parameters of the section of the roadway, so that the requirement of ventilation and transportation of the finished section of the roadway support is met. The type of the U-shaped steel is determined according to the mine pressure and the roadway section parameters, and when the mine pressure and the section are large, the type of the U-shaped steel is increased, and the supporting distance of a steel shed is reduced. The anti-arch radian of the U-shaped steel bottom beam 6 is determined according to the ground pressure, so that the ground pressure strength of the roadway can be effectively controlled. The welding position of the U-shaped steel stop block 5 can be flexibly determined according to the width of a roadway and the inverted arch radian of the U-shaped steel bottom beam 6. During construction the utility model discloses supporting mode beyond is indispensable to form the complete system of strutting in tunnel, ensure tunnel construction quality and safety.
The steel shed adopts U-shaped steel of the same type to process and manufacture the steel shed roof, the steel shed legs, the U-shaped steel stop blocks and the U-shaped steel bottom beams, so that all the components are connected by U-shaped engagement, and the stability of the whole steel shed is ensured; the U-shaped steel bottom beam is processed into an inverted arch shape, so that the ground pressure strength of the roadway can be effectively controlled, and the control effect of the floor heave is good; cut into U type mouth form with U shaped steel floorbar both ends, be fixed in between the parallels of tunnel both sides steel canopy leg and the U shaped steel dog for U shaped steel floorbar and steel canopy leg U type interlock, and be equipped with the upward movement of U shaped steel dog restriction U shaped steel floorbar, guaranteed the stability and the pucking controllability of steel canopy more. The utility model has the characteristics of stable in structure, safe and reliable, pucking control effect are good etc.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (4)
1. A steel shed for supporting a high-ground-pressure soft rock roadway is characterized by comprising a steel shed top (1), U-shaped clamping cables (2), steel shed legs (3), a sizing block (4), U-shaped steel stop blocks (5) and U-shaped steel bottom beams (6); the two bottom ends of the steel shed roof (1) are respectively connected with steel shed legs (3) through U-shaped clamp cables (2), the bottom ends of the steel shed legs (3) are fixedly connected with the sizing blocks (4), U-shaped steel stop blocks (5) are fixedly arranged at the joints of the tunnel floor of the steel shed legs (3), U-shaped steel bottom beams (6) are fixed between the sizing blocks (4) and the U-shaped steel stop blocks (5) on the two sides of the tunnel, the U-shaped steel bottom beams (6) are of an inverted arch structure, and the two ends of the U-shaped steel bottom beams (6) are in a U-shaped mouth shape; between steel shed roof (1) and steel shed leg (3), between U shaped steel dog (5) and U shaped steel floorbar (6) to and be the U type interlock between steel shed leg (3) and U shaped steel floorbar (6), constitute a U shaped steel canopy and strut wholly.
2. The steel shed for high-earth pressure soft rock roadway support according to claim 1, wherein two bottom ends of the steel shed roof (1) are respectively connected with the steel shed legs (3) through a plurality of U-shaped clamp cables (2).
3. The steel shed for high earth pressure soft rock roadway support according to claim 1, characterized in that the bottom ends of the steel shed legs (3) are welded with the sizing blocks (4).
4. A high earth pressure soft rock roadway support steel shed as claimed in claim 1, characterized in that the U-shaped steel stop blocks (5) are welded to the steel shed legs (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246768.4U CN212508349U (en) | 2020-06-30 | 2020-06-30 | Steel shed for supporting high-ground-pressure soft rock roadway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246768.4U CN212508349U (en) | 2020-06-30 | 2020-06-30 | Steel shed for supporting high-ground-pressure soft rock roadway |
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| CN212508349U true CN212508349U (en) | 2021-02-09 |
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| CN202021246768.4U Active CN212508349U (en) | 2020-06-30 | 2020-06-30 | Steel shed for supporting high-ground-pressure soft rock roadway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790070A (en) * | 2021-08-12 | 2021-12-14 | 新汶矿业集团有限责任公司 | Variable-rigidity yielding steel shed support for rock burst mine and implementation method |
| CN117145523A (en) * | 2023-10-31 | 2023-12-01 | 煤炭工业太原设计研究院集团有限公司 | Sylvite inclined shaft mudstone section roof-falling treatment reinforcing structure and method |
-
2020
- 2020-06-30 CN CN202021246768.4U patent/CN212508349U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790070A (en) * | 2021-08-12 | 2021-12-14 | 新汶矿业集团有限责任公司 | Variable-rigidity yielding steel shed support for rock burst mine and implementation method |
| CN113790070B (en) * | 2021-08-12 | 2023-11-24 | 新汶矿业集团有限责任公司 | Variable-rigidity yielding steel shed support for rock burst mine and implementation method |
| CN117145523A (en) * | 2023-10-31 | 2023-12-01 | 煤炭工业太原设计研究院集团有限公司 | Sylvite inclined shaft mudstone section roof-falling treatment reinforcing structure and method |
| CN117145523B (en) * | 2023-10-31 | 2023-12-26 | 煤炭工业太原设计研究院集团有限公司 | Sylvite inclined shaft mudstone section roof-falling treatment reinforcing structure and method |
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