CN211737054U - Foundation structure of raise boring machine for gentle slope inclined shaft - Google Patents
Foundation structure of raise boring machine for gentle slope inclined shaft Download PDFInfo
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- CN211737054U CN211737054U CN202020066024.8U CN202020066024U CN211737054U CN 211737054 U CN211737054 U CN 211737054U CN 202020066024 U CN202020066024 U CN 202020066024U CN 211737054 U CN211737054 U CN 211737054U
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Abstract
A foundation structure of a raise boring machine of a gentle slope inclined shaft belongs to the technical field of foundation structure design and construction of the raise boring machine during water conservancy and hydropower construction. It includes concrete foundation and drilling rod storage rack, and the concrete foundation arranges in the tunnel bottom plate, and the concrete foundation is met rig installation orientation and is set up to the inclined plane, sets up pre-buried steel pipe along inclined shaft drilling center line in the concrete foundation, sets up pre-buried H steel on the concrete foundation inclined plane, and concrete foundation one side sets up the drilling rod storage rack. The utility model has the advantages that: through the technique overspill, set up the concrete foundation, the cooperation is pre-buried H steel, forms basic atress condition, utilizes pre-buried steel pipe in basic concrete, avoids the rig drilling to cause the destruction to the concrete foundation, and raise boring machine atress condition is better, and drilling accuracy better control is applicable to the construction of the raise boring machine of gentle slope inclined shaft.
Description
Technical Field
The utility model belongs to the technical field of the foundation structure design construction of raise boring machine when water conservancy water and electricity, railway, highway, coal mine engineering inclined shaft are under construction, be particularly useful for the inclined shaft raise boring machine construction foundation structure that the angle is less than 45 degrees and is greater than 36 degrees.
Background
The conventional raise boring machine construction is generally suitable for inclined shafts or vertical shafts with inclination angles of 60-90 degrees, and records of constructing 45-degree inclined shafts by using the raise boring machine are recorded at present at home and abroad. The raise boring machine is used for construction of inclined shaft and vertical shaft, and before construction, the foundation of the boring machine is needed to be constructed, so that the installation and reinforcement of the boring machine are facilitated, the stress condition of the boring machine during the process of expanding the guide shaft reversely can be improved, and corresponding supporting facilities (a mud pit, a clean water pond and the like) for construction of the raise boring machine are arranged. The raise boring machine foundation is usually in a plain concrete structure, and the conventional concrete foundation can be locally transformed on a raise boring machine suspender and the foundation due to a large inclination angle (larger than 45 degrees), so that the drilling requirement at a corresponding angle can be met, and the stress influence on the drilling machine is small. However, for an inclined shaft which is slow at the angle, the stress of the drilling machine is complex, the component force in the gravity direction is larger, the drilling machine is easy to have mechanical failure under the action of the drilling machine, and the acting force of the drilling machine needs to be perpendicular to the base surface as much as possible so as to improve the stress condition.
Disclosure of Invention
The to-be-solved problem of the utility model is exactly to above not enough and provide a foundation structure suitable for gentle slope inclined shaft raise boring machine construction. The technical scheme is as follows:
it includes concrete foundation and drilling rod storage rack, and the concrete foundation arranges in the tunnel bottom plate, and the concrete foundation is met rig installation orientation and is set up to the inclined plane, sets up pre-buried steel pipe along inclined shaft drilling center line in the concrete foundation, sets up pre-buried H steel on the concrete foundation inclined plane, and concrete foundation one side sets up the drilling rod storage rack.
The concrete foundation inclined plane is perpendicular to the axis of the inclined shaft.
The depth of the concrete foundation embedded below the bottom plate of the tunnel is not less than 700mm, the top width is not less than 3000mm, the bottom width is not more than 4000mm, and the height is not less than 2350 mm.
The drill rod storage rack is of a rectangular structure, the length of the drill rod storage rack is not less than 4000mmm, the width of the drill rod storage rack is not less than 1200mm, and the thickness of the drill rod storage rack is not less than 700 mm.
The embedded H-shaped steel is arranged along the through length of the inclined plane, the distance between the embedded H-shaped steel and the foundation bolts of the raise boring machine is consistent, and the embedded H-shaped steel is embedded into concrete and is not less than 50 mm.
The upper opening of the embedded steel pipe is flush with the inclined plane of the concrete foundation.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. the utility model discloses a technique is surpassed and is dug, sets up the concrete foundation, cooperates pre-buried H steel, forms basic atress condition, utilizes pre-buried steel pipe in basic concrete, avoids rig drilling to cause destruction to the concrete foundation, and raise boring machine atress condition is better, and drilling accuracy better control is applicable to gentle slope inclined shaft (inclination 36 ~ 45) raise boring machine construction.
2. The drill rod storage rack is arranged and used for storing drill rods, so that the adaptability of the gentle slope inclined shaft raise boring machine is improved, the stress condition of the foundation is improved, and the stability of the raise boring machine is guaranteed.
Drawings
Fig. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic front view of the present invention shown in FIG. 1A-A;
fig. 3 is a schematic top view of the present invention shown in fig. 1B-B.
Detailed Description
The present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.
Referring to fig. 1-3, the utility model discloses a concrete foundation 3 and drilling rod storage rack 8, concrete foundation 3 direct arrangement is in tunnel bottom plate 1, and concrete foundation 3 meets rig installation direction and sets up to the inclined plane, ensures rig trompil angle, sets up pre-buried steel pipe 5 along inclined shaft drilling central line in the concrete foundation 3, reduces drilling to the stable destruction and the work load of basis, sets up pre-buried H steel 4 on the concrete foundation 3 inclined planes, and 3 one sides of concrete foundation set up drilling rod storage rack 8.
The concrete foundation inclined plane is perpendicular to the axis of the inclined shaft.
The drill rod storage rack 8 is of a rectangular structure, the length is not less than 4000mmm, the width is not less than 1200mm, the thickness is not less than 700mm, the bottom of the rack is designed to be an excavation bottom plate elevation for a tunnel, concrete with the reference number of C25-C30 is poured, and the arranged position is consistent with that of a drill rod lifting device of a raise boring machine, so that the drill rod is lifted by the boring machine.
The size of the embedded H steel 4 is 300mm multiplied by 10mm multiplied by 15mm (height multiplied by width multiplied by web thickness multiplied by flange thickness), two parallel embedded H steel pieces are arranged along the through length of the inclined plane, the type is H300, the distance is consistent with the distance between foundation bolts of the raise-boring machine, the distance is not less than 50mm when the embedded H steel pieces are embedded into concrete, and the exposed part is welded with the base of the raise-boring machine 6.
The size phi 325 multiplied by 8 (outer diameter multiplied by wall thickness) of the embedded steel pipe 5 is not less than 300mm, the upper opening is flush with the 3 inclined planes of the concrete foundation, and the lower opening is flush with the super-excavation bottom plate of the tunnel technology.
In the figure, 2 is the top surface of the concrete foundation, 7 is the drilling point of the raise boring machine, and alpha is the inclined plane angle of the concrete foundation.
During construction:
1) firstly, performing technical expanding excavation on a tunnel bottom plate 1, wherein the expanding excavation length is not less than 4000mm, the expanding excavation thickness is not less than 700mm, and the expanding excavation width W is the designed excavation width of the tunnel;
2) constructing pre-buried H steel 4 and pre-buried steel pipes 5 in the foundation range after the expanding excavation is finished, finally erecting a mold and pouring a reinforced concrete foundation 3 and a drill rod storage rack 8 (the rock mass is used for bearing the later-stage drilling machine acting force and resisting the foundation sliding caused by the horizontal direction force), and installing and fixing a raise boring machine when the concrete reaches over 75 percent of strength;
3) firstly, welding and reinforcing a base of a drilling machine 6 and the embedded H steel 4, and then sequentially installing various components, a drill bit, an electrical system, a control system, a measuring device and the like to finish the installation of the raise-boring machine.
Claims (6)
1. The utility model provides a gentle slope inclined shaft raise boring machine foundation structure, its characterized in that includes concrete foundation (3) and drilling rod storage rack (8), concrete foundation (3) arrange in tunnel bottom plate (1), concrete foundation (3) meet rig installation direction and set up to the inclined plane, set up pre-buried steel pipe (5) along inclined shaft drilling center line in concrete foundation (3), set up pre-buried H steel (4) on concrete foundation (3) inclined plane, concrete foundation (3) one side sets up drilling rod storage rack (8).
2. The gentle slope inclined shaft raise boring machine substructure of claim 1, wherein the concrete foundation slopes are perpendicular to the inclined shaft axis.
3. The gentle slope inclined shaft raise boring machine foundation structure of claim 1, characterized by that the depth of concrete foundation (3) bottom portion buried tunnel floor (1) is not less than 700mm, the top width is not less than 3000mm, the bottom width is not more than 4000mm, the height is not less than 2350 mm.
4. The foundation structure of a raise boring machine for a gentle slope inclined shaft as claimed in claim 1, wherein the drill rod storage rack (8) is rectangular in shape, and has a length of not less than 4000mmm, a width of not less than 1200mm and a thickness of not less than 700 mm.
5. The foundation structure of the gentle slope inclined shaft raise boring machine according to claim 1, wherein the embedded H steel (4) is arranged along the through length of the inclined plane, the distance is consistent with the distance between foundation bolts of the raise boring machine, and the distance is not less than 50mm when the embedded H steel is embedded in concrete.
6. The gentle slope inclined shaft raise boring machine foundation structure of claim 1, characterized in that pre-buried steel pipe (5) suitable for reading and level with concrete foundation (3) inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020066024.8U CN211737054U (en) | 2020-01-13 | 2020-01-13 | Foundation structure of raise boring machine for gentle slope inclined shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020066024.8U CN211737054U (en) | 2020-01-13 | 2020-01-13 | Foundation structure of raise boring machine for gentle slope inclined shaft |
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| Publication Number | Publication Date |
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| CN211737054U true CN211737054U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020066024.8U Active CN211737054U (en) | 2020-01-13 | 2020-01-13 | Foundation structure of raise boring machine for gentle slope inclined shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088951A (en) * | 2020-01-13 | 2020-05-01 | 中国水利水电第七工程局有限公司 | Foundation structure of raise boring machine for gentle slope inclined shaft |
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2020
- 2020-01-13 CN CN202020066024.8U patent/CN211737054U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111088951A (en) * | 2020-01-13 | 2020-05-01 | 中国水利水电第七工程局有限公司 | Foundation structure of raise boring machine for gentle slope inclined shaft |
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