CN204646268U - A kind of underground construction steel arch-shelf composite supporting construction - Google Patents
A kind of underground construction steel arch-shelf composite supporting construction Download PDFInfo
- Publication number
- CN204646268U CN204646268U CN201520345094.6U CN201520345094U CN204646268U CN 204646268 U CN204646268 U CN 204646268U CN 201520345094 U CN201520345094 U CN 201520345094U CN 204646268 U CN204646268 U CN 204646268U
- Authority
- CN
- China
- Prior art keywords
- shelf
- steel arch
- anchor pole
- composite supporting
- supporting construction
- 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.)
- Active
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model discloses a kind of underground construction steel arch-shelf composite supporting construction.Described supporting and protection structure comprises the steel arch-shelf that at least one Pin arranges perpendicular to cavern's length direction, and at least one vertical hole wall cloth is equipped with the anchor pole of certain protruded length, and is fixed on the Gu Jiaodun at steel arch-shelf footing place; Described anchor pole and steel arch-shelf isoplanar are arranged; Described anchor pole revealed section is weldingly connected by dowel and described steel arch-shelf.The utility model supporting and protection structure improves the strength and stiffness of steel arch-shelf, effectively prevent steel arch-shelf because being out of shape excessive or unstability and losing support action under pressure from surrounding rock, thus ensure that the safety of cavern.
Description
Technical field
The utility model relates to a kind of underground construction steel arch-shelf composite supporting construction, and being particularly useful for the situation that underground chamber span is comparatively large, wall rock condition is poor, when adopting steel arch-shelf as main supporting means, is a kind of composite construction strengthened steel arch-shelf.
Background technology
In existing underground engineering construction, when cavern span is comparatively large and geological conditions is poor, steel arch-shelf is a kind of main supporting measure, but due to pressure from surrounding rock comparatively large, usually there is the situation of the excessive or unstability of bow member distortion, thus make bow member lose support action.
For avoiding this situation, being necessary to improve section-steel support structure, its intensity, rigidity can be met the demands, thus fully ensure the performance of support action.
Utility model content
The utility model aims to provide a kind of underground construction steel arch-shelf composite supporting construction, and this supporting and protection structure can improve the strength and stiffness of steel arch-shelf, avoids steel arch-shelf to lose support action because being out of shape excessive or unstability, thus ensures the safety of cavern.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of underground construction steel arch-shelf composite supporting construction, comprise the steel arch-shelf that at least one Pin arranges perpendicular to cavern's length direction, at least one vertical hole wall cloth is put and has the anchor pole of revealed section, and is fixed on the Gu Jiaodun at steel arch-shelf footing place; Described anchor pole and steel arch-shelf isoplanar are arranged; Its design feature is, the revealed section of described anchor pole is fixedly linked by dowel and described steel arch-shelf.
Thus, by the setting of dowel, reach the object of anchor pole and bow member coaction, thus significantly can improve the strength and stiffness of bow member.
According to embodiment of the present utility model, can also do further to optimize to the utility model, the technical scheme below for being formed after optimization:
Further, described cavern wall is provided with pneumatically placed concrete layer, and this pneumatically placed concrete layer fills space between described steel arch-shelf and scar, and is wrapped up by steel arch-shelf.
The protruded length that described anchor pole stretches out hole wall is 5 times ~ 10 times of bolt diameter.
Preferably, described dowel is L-shaped; One end and the anchor pole revealed section of described dowel are fixedly linked, and the other end of this dowel and the wing of steel arch-shelf are along being fixedly linked.
Further, when steel arch-shelf has many Pin, described Gu Jiaodun is the detached pier structure of parcel steel arch-shelf footing; When steel arch-shelf has many Pin, described Gu Jiaodun wraps up the continuous parapet structure of many Pin steel arch-shelf footing.
Preferably, described anchor pole is arranged on crown position and/or the stringcourse position of steel arch-shelf.
When steel arch-shelf has many Pin, be fixedly linked by connector between adjacent two Pin steel arch-shelf, thus reach the effect of three-dimensional supporting, stability and reliability higher.
Preferably, described steel arch-shelf is circular arch stalk shape or " door " font.
Implementation step of the present utility model is:
A () props up vertical steel arch-shelf on request in excavation complete hole section;
B () arranges anchor pole along steel arch-shelf at a certain distance at its crown or stringcourse place, armature boring requires when not affecting construction as far as possible near steel arch-shelf, at its revealed section welding " L " shape bar dowel after anchor bolt construction, the bar dowel other end and the bow member wing, along welding, make anchor pole and bow member be connected firmly and form coaction structure;
C (), while anchor bolt construction, builds the solid pin pier structure of concrete of bow member footing, with improve footing strength and stability.
Compared with prior art, the beneficial effects of the utility model are: composite construction of the present utility model adds intensity and the supporting capacity of steel arch-shelf, improve the stress condition of steel arch-shelf, bow member can be effectively avoided to produce excessive deformation or unstability under pressure from surrounding rock effect, be conducive to the support action giving full play to bow member, ensure the safety of cavern.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of a kind of embodiment of the utility model perpendicular to cavern's length direction;
Fig. 2 is steel arch-shelf and anchor pole connection diagram;
Fig. 3 is the I-I sectional view of Fig. 1.
In the drawings
1-steel arch-shelf, 2-anchor pole, 3-Gu Jiaodun, 4-pneumatically placed concrete layer, 5-dowel.
Detailed description of the invention
In conjunction with the accompanying drawings and embodiments the utility model is further elaborated for section-steel support structure below.
A kind of underground construction steel arch-shelf composite supporting construction, as shown in Figures 1 to 3, comprises the steel arch-shelf 1 arranged at a certain distance, is arranged in the conplane and anchor pole 2 welded with it and the solid pin pier 3 of concrete of parcel steel arch-shelf footing with steel arch-shelf.Anchor pole arranges 1 or many according to cavern span size, its revealed section by " L " shape bar dowel and the bow member wing along firm welding.Concrete Gu Jiaodun, when the spacing that steel arch-shelf is arranged is larger, adopts detached pier formula structure, generally adopts the pattern of diaphragm wall when the spacing that steel arch-shelf is arranged is less.
Described bar dowel 5 is " L " shape, and one end of described like this dowel 5 is welded with anchor pole 2, and the other end welds with the wing edge of steel arch-shelf 1.
According to excavation tunnel shape, described steel arch-shelf 1 both can be circular arch stalk shape, also can be " door " font.The multiple steel arch-shelf 1 arranged in hole can pass through connector, as adjacent two steel arch-shelf weld together by reinforcing bar, shaped steel etc., thus reach three-dimensional supporting effect.
During construction, first prop up vertical steel arch-shelf 1 on request in excavation complete hole section, this bow member 1 vertical hole axis is arranged at a certain distance, anchor pole 2 of then constructing, this anchor pole 2 is arranged in same plane with shaped steel arch 1, and the revealed section of this anchor pole 2 is welded with steel arch-shelf 1 by bar dowel 5.While construction anchor pole 2, can consolidate pin pier 3 by concreting, the solid pin pier 3 of concrete both can be detached pier structure, also can adopt continuous parapet pattern.
Thus, composite supporting construction of the present utility model has carried out strengthening transformation to independent steel arch-shelf, improve the stress condition of bow member, define the structure of a kind of organic assembling, coaction, be particularly useful for the supporting of the underground chamber that span is comparatively large, wall rock condition is poor, shaped steel arch effectively can be avoided under pressure from surrounding rock effect to produce excessive deformation or unstability, be conducive to the effect giving full play to shaped steel arch.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Claims (8)
1. a underground construction steel arch-shelf composite supporting construction, comprise the steel arch-shelf (1) that at least one Pin arranges perpendicular to cavern's length direction, at least one vertical hole wall cloth is put and has the anchor pole (2) of revealed section, and is fixed on the Gu Jiaodun (3) at steel arch-shelf (1) footing place; Described anchor pole (2) and steel arch-shelf (1) isoplanar are arranged; It is characterized in that, the revealed section of described anchor pole (2) is fixedly linked by dowel (5) and described steel arch-shelf (1).
2. underground construction steel arch-shelf composite supporting construction according to claim 1, it is characterized in that, described cavern wall is provided with pneumatically placed concrete layer (4), and this pneumatically placed concrete layer (4) fills space between described steel arch-shelf (1) and scar, and is wrapped up by steel arch-shelf (1).
3. underground construction steel arch-shelf composite supporting construction according to claim 1 and 2, is characterized in that, the protruded length that described anchor pole (2) stretches out hole wall is 5 times ~ 10 times of bolt diameter.
4. underground construction steel arch-shelf composite supporting construction according to claim 1 and 2, is characterized in that, described dowel (5) is L-shaped; One end and anchor pole (2) revealed section of described dowel (5) are fixedly linked, and the other end of this dowel (5) and the wing of steel arch-shelf (1) are along being fixedly linked.
5. underground construction steel arch-shelf composite supporting construction according to claim 1 and 2, is characterized in that, when steel arch-shelf (1) has many Pin, described Gu Jiaodun (3) is the detached pier structure of parcel steel arch-shelf (1) footing; When steel arch-shelf (1) has many Pin, described Gu Jiaodun (3) wraps up the continuous parapet structure of many Pin steel arch-shelf (1) footing.
6. bow member composite supporting construction according to claim 1 and 2, is characterized in that, described anchor pole (2) is arranged on crown position and/or the stringcourse position of steel arch-shelf (1).
7. underground construction steel arch-shelf composite supporting construction according to claim 1 and 2, is characterized in that, described steel arch-shelf is circular arch stalk shape or " door " font.
8. underground construction steel arch-shelf composite supporting construction according to claim 1 and 2, is characterized in that, when steel arch-shelf (1) has many Pin, is fixedly linked between adjacent two Pin steel arch-shelf by connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345094.6U CN204646268U (en) | 2015-05-26 | 2015-05-26 | A kind of underground construction steel arch-shelf composite supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345094.6U CN204646268U (en) | 2015-05-26 | 2015-05-26 | A kind of underground construction steel arch-shelf composite supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646268U true CN204646268U (en) | 2015-09-16 |
Family
ID=54099032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520345094.6U Active CN204646268U (en) | 2015-05-26 | 2015-05-26 | A kind of underground construction steel arch-shelf composite supporting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640118A (en) * | 2017-03-08 | 2017-05-10 | 中国电建集团中南勘测设计研究院有限公司 | Underground cavity arch crown structure, underground cavity and underground cavity construction method |
-
2015
- 2015-05-26 CN CN201520345094.6U patent/CN204646268U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640118A (en) * | 2017-03-08 | 2017-05-10 | 中国电建集团中南勘测设计研究院有限公司 | Underground cavity arch crown structure, underground cavity and underground cavity construction method |
| CN106640118B (en) * | 2017-03-08 | 2019-02-19 | 中国电建集团中南勘测设计研究院有限公司 | A kind of underground cavern crown structure, underground chamber and Cavity Construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103075165B (en) | Vertical beam of coal road combined type supporting method | |
| CN201794079U (en) | Foundation pit supporting system | |
| CN204552783U (en) | A kind of loess tunnel vertical deformation control structure | |
| CN203547773U (en) | Channel combined support structure suitable for slowly inclined stratified rock mass | |
| CN203654295U (en) | Single-leg inclined strut reinforced foundation pit supporting structure | |
| CN103410528A (en) | Tunnel lining structure and construction method | |
| CN105134216A (en) | Anti-collapse structure beside roadway based on breaking roof 110 construction method | |
| CN202055842U (en) | Structure with connection with steel arch frame and locking anchor pipes of tunnel | |
| CN104061000B (en) | Touch wall sinking passage formula tunnel partition wall and method of construction thereof | |
| CN102704965A (en) | Method for preventing tunnel top plate collapse risk caused by severe mining | |
| CN103032080A (en) | Support method of weak and broken surrounding rock tunnel | |
| CN203855970U (en) | Assembly type foundation pit supporting double-row hollow pile structure | |
| CN203499701U (en) | Guide positioning connecting structure for feet-lock bolt of steel frame of tunnel | |
| CN204825914U (en) | A reinforced concrete roof beam and fish belly sill combined supporting structure for complicated plane foundation ditch | |
| CN103061779A (en) | Novel mine tunnel supporting structure and construction method thereof | |
| CN204646268U (en) | A kind of underground construction steel arch-shelf composite supporting construction | |
| CN204151798U (en) | A kind of steel reinforced concrete anti-slide pile structure | |
| CN206530341U (en) | A kind of underground cavern crown structure and its underground chamber | |
| CN204253061U (en) | The lining cutting of mine working three-dimensional bar frame antiarch | |
| CN103603682B (en) | A kind of top plate supporting method being applicable to slice drift cemented filling mining | |
| CN203822325U (en) | Steel grating steel arch frame combined support for initial stage of expansibility soil layer tunnel | |
| CN205714226U (en) | The Tunnel structure of steel pipe steelframe is set in a kind of | |
| CN104632228A (en) | Main track entering construction method for cross aisle and cross aisle | |
| CN102493436A (en) | Novel manual tunneling construction method of rectangular anti-slide pile | |
| CN203429639U (en) | Soft soil layer digging pile construction protective structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |