CN202500152U - Supporting structure of underground factory floor - Google Patents
Supporting structure of underground factory floor Download PDFInfo
- Publication number
- CN202500152U CN202500152U CN 201220135070 CN201220135070U CN202500152U CN 202500152 U CN202500152 U CN 202500152U CN 201220135070 CN201220135070 CN 201220135070 CN 201220135070 U CN201220135070 U CN 201220135070U CN 202500152 U CN202500152 U CN 202500152U
- Authority
- CN
- China
- Prior art keywords
- anchor pole
- floor
- supporting construction
- shearing resistance
- power house
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a supporting structure of an underground factory floor. The supporting structure comprises an anchor rod beam (2) fixed on an underground factory palisades (1) through an anchor rod, the anchor rod beam (2) is connected with a secondary beam (3), and a floor (4) is arranged on the anchor rod beam (2) and the secondary beam (3). According to the supporting structure of the underground factory floor, the floor and the secondary beam are supported on the anchor rod beam of the factory palisades directly, columns for supporting beams and the floor in the underground factory are omitted, an excavation span of a small factory is effectively reduced, stability of surrounding rocks is improved, cave excavation supporting work amount can be reduced, and project investment is saved.
Description
Technical field
the utility model relates to a kind of supporting construction of underground power house floor, belongs to the construction engineering technical field of underground power house.
Background technology
In
hydroelectric project, underground power house cavity group cavern quantity is many, scale is big, and spatial placement is staggered complicated, and surrounding rock of chamber stability is outstanding, and the size of factory building excavation span still is responsive to surrounding rock stability.Traditional underground power house floor is bearing on concrete column or the brick rod structure, and the setting of pillar has occupied certain space, arranges needs for satisfying electromechanical equipment, must strengthen the excavation span of factory building.And the increase of excavation span will be unfavorable for can increasing the adjoining rock stability of underground power house cavity group the hole simultaneously to dig and the support engineering amount, prolong the duration, increase construction investment.
Summary of the invention
The purpose of
the utility model is, a kind of supporting construction of underground power house floor is provided.Can effectively reduce factory building excavation span, help the adjoining rock stability of underground power house cavity group, can guarantee the safety and saving construction investment of floor slab structure simultaneously again.
The technical scheme of the utility model:
The supporting construction of
underground power house floor comprises through anchor pole being fixed on the anchor pole beam on the underground power house crag that the anchor pole beam is connected with secondary beam, on anchor pole beam and secondary beam, is provided with floor.
In
aforementioned supporting construction, the vertical cross-section of said anchor pole beam is trapezoidal, and the bottom surface of anchor pole beam and the angle of horizontal plane are 30 °～45 °.
In
aforementioned supporting construction, the vertical distance H of inclined-plane bottom to floor end face is not more than 3 times of vertical distance h of top, inclined-plane to floor end face at the bottom of the anchor pole beam at the bottom of the said anchor pole beam.
In
aforementioned supporting construction, said anchor pole beam is arranged along the length direction of underground power house.
In
aforementioned supporting construction, said anchor pole comprises and tiltedly draws anchor pole and shearing resistance anchor pole.
In
aforementioned supporting construction, said shearing resistance anchor pole comprises horizontal shearing resistance anchor pole and diagonal brace shearing resistance anchor pole; Tiltedly draw anchor pole and the shearing resistance anchor pole length direction separation along underground power house, spacing is 0.7m～1.2m.
In
aforementioned supporting construction, said tiltedly to draw the angle of inclination of anchor pole and the angle of horizontal plane be 15 °～30 °; And is 10～20cm at the crag place apart from the distance of anchor pole top surface of the beam.
In
aforementioned supporting construction, the angle of inclination of said diagonal brace shearing resistance anchor pole is identical with the angle of inclination of anchor pole soffit; And high 10～20cm apart from anchor pole beam base.
compared with prior art; The underground power house floor supporting construction of the utility model; Floor and secondary beam directly are bearing on the anchor pole beam that is fixed on the factory building crag; Cancelled the pillar of brace summer and floor in the underground power house, can effectively reduce factory building excavation span, increase surrounding rock stability, can reduce cavern excavation support engineering amount again, save construction investment.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the sectional view at the utility model anchor pole beam position.
Being labeled as in
accompanying drawing: 1-underground power house crag, 2-anchor pole beam, 3-secondary beam, 4-floor, 5-tiltedly draw anchor pole, the horizontal shearing resistance anchor pole of 6-, 7-diagonal brace shearing resistance anchor pole, 8-anchor pole beam steel skeleton, 9-secondary beam cage of reinforcement, 10-floor bar skeleton.
The specific embodiment
are done further to specify to the utility model below in conjunction with accompanying drawing and embodiment, but not as any restriction to the utility model.
The supporting construction of
a kind of underground power house floor, as depicted in figs. 1 and 2.Comprise through anchor pole and be fixed on the anchor pole beam 2 on the underground power house crag 1.Anchor pole comprises and tiltedly draws anchor pole 5 and shearing resistance anchor pole that the shearing resistance anchor pole comprises horizontal shearing resistance anchor pole 6 and diagonal brace shearing resistance anchor pole 7; Tiltedly drawing the angle of inclination of anchor pole 5 and the angle of horizontal plane is 15 °～30 °; And is 10～20cm at the crag place apart from the distance of anchor pole top surface of the beam.The angle of inclination of diagonal brace shearing resistance anchor pole 7 is identical with the angle of inclination of anchor pole beam 2 bottom surfaces; And high 10～20cm apart from anchor pole beam 2 bases; Tiltedly draw anchor pole 5, horizontal shearing resistance anchor pole 6 and the diagonal brace shearing resistance anchor pole length direction separation along underground power house, spacing is 0.7m～1.2m.The vertical cross-section of anchor pole beam 2 is trapezoidal, and the bottom surface of anchor pole beam 2 and the angle of horizontal plane are 30 °～45 °; Bottom, inclined-plane, 2 end of anchor pole beam is not more than 3 times of (see figure 2)s of the vertical distance h of top, inclined-plane, 2 end of anchor pole beam to floor 4 end faces to the vertical distance H of floor 4 end faces; Anchor pole beam 2 is arranged along the length direction of underground power house.Anchor pole beam 2 is connected with secondary beam 3, on anchor pole beam 2 and secondary beam 3, is provided with floor 4.
The utility model is constructed by following operation:
One group of bolthole is made a call to according to designing requirement in
on underground power house crag 1; Comprise lateral aperture, bow hole and uphole; In lateral aperture, bow hole and uphole, inject cement mortar or the cement paste that strength grade is not less than M20; Respectively with horizontal shearing resistance anchor pole 6, diagonal brace shearing resistance anchor pole 7 with tiltedly draw anchor pole 5 to insert in lateral apertures, bow hole and the uphole, all anchor poles are fixed in the bolthole then; Treat that cement mortar or cement paste in the bolthole reach after the design strength, with anchor pole and anchor pole beam steel skeleton 8 firm welding; Colligation secondary beam cage of reinforcement 9 and floor bar skeleton 10 on this basis again; Outside anchor pole beam steel skeleton 8, secondary beam cage of reinforcement 9 and floor bar skeleton 10, build template again, the concrete that is not less than C25 with strength grade is accomplished building of anchor pole beam 2, secondary beam 3 and floor 4.
Claims (8)
1. the supporting construction of underground power house floor, it is characterized in that: comprise through anchor pole being fixed on the anchor pole beam (2) on the underground power house crag (1), anchor pole beam (2) is connected with secondary beam (3), on anchor pole beam (2) and secondary beam (3), is provided with floor (4).
2. according to the said supporting construction of claim 1, it is characterized in that: the vertical cross-section of said anchor pole beam (2) is trapezoidal, and the bottom surface of anchor pole beam (2) and the angle of horizontal plane are 30 °～45 °.
3. according to the said supporting construction of claim 2, it is characterized in that: the vertical distance H of said anchor pole beam (2) inclined-plane, end bottom to floor (4) end face is not more than 3 times of vertical distance h of top, anchor pole beam (2) inclined-plane, the end to floor (4) end face.
4. according to the said supporting construction of claim 2, it is characterized in that: said anchor pole beam (2) is arranged along the length direction of underground power house.
5. according to the said supporting construction of claim 1, it is characterized in that: said anchor pole comprises and tiltedly draws anchor pole (5) and shearing resistance anchor pole; Tiltedly draw anchor pole (5) and the shearing resistance anchor pole length direction separation along underground power house, spacing is 0.7m～1.2m.
6. according to the said supporting construction of claim 5, it is characterized in that: said shearing resistance anchor pole comprises horizontal shearing resistance anchor pole (6) and diagonal brace shearing resistance anchor pole (7).
7. according to the said supporting construction of claim 5, it is characterized in that: said tiltedly to draw the angle of inclination of anchor pole (5) and the angle of horizontal plane be 15 °～30 °; And is 10～20cm at the crag place apart from the distance of anchor pole top surface of the beam.
8. according to the said supporting construction of claim 6, it is characterized in that: the angle of inclination of said diagonal brace shearing resistance anchor pole (7) is identical with the angle of inclination of anchor pole beam (2) bottom surface; And apart from anchor pole beam (2) high 10～20cm in base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135070 CN202500152U (en) | 2012-04-01 | 2012-04-01 | Supporting structure of underground factory floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135070 CN202500152U (en) | 2012-04-01 | 2012-04-01 | Supporting structure of underground factory floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500152U true CN202500152U (en) | 2012-10-24 |
Family
ID=47036768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220135070 Expired - Lifetime CN202500152U (en) | 2012-04-01 | 2012-04-01 | Supporting structure of underground factory floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733419A (en) * | 2012-04-01 | 2012-10-17 | 中国水电顾问集团贵阳勘测设计研究院 | Supporting structure of underground plant floor slab and construction method |
-
2012
- 2012-04-01 CN CN 201220135070 patent/CN202500152U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733419A (en) * | 2012-04-01 | 2012-10-17 | 中国水电顾问集团贵阳勘测设计研究院 | Supporting structure of underground plant floor slab and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER GROUP GUIYANG INVESTIGATION DESIGN + R Free format text: FORMER NAME: GUIYANG PROSPECTION + DESIGN INST, CHINA HYDRAULIC POWER CONSULTARY GROUP |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Patentee after: China Kweiyang survey and design research institute company limited of electricity Jian group Address before: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Patentee before: Guiyang Prospection & Design Inst, China Hydraulic Power Consultary Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |