CN104832200A - Self-adaptive feet-lock bolt integrated device and application method thereof - Google Patents
Self-adaptive feet-lock bolt integrated device and application method thereof Download PDFInfo
- Publication number
- CN104832200A CN104832200A CN201510185360.8A CN201510185360A CN104832200A CN 104832200 A CN104832200 A CN 104832200A CN 201510185360 A CN201510185360 A CN 201510185360A CN 104832200 A CN104832200 A CN 104832200A
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- China
- Prior art keywords
- lock foot
- foot anchoring
- anchoring stock
- arch
- shelf
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- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000011435 rock Substances 0.000 claims abstract description 19
- 238000009412 basement excavation Methods 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims description 57
- 230000006978 adaptation Effects 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a self-adaptive feet-lock bolt integrated device applied to the tunnel stepwise excavation process and an application method thereof so that effective control of broke and weak surrounding rock tunnel large deformation is realized. A large-area arch springing bearing plate is arranged at the steel arch springing part so that arch springing bearing area is enlarged and arch springing bearing force is increased; integral settlement of the tunnel is measured by an arch springing bearing plate slide surface scale; feet-lock bolts are self-adaptive to different angles of installation via elastic ball nuts; meanwhile, the size of the applied pre-stress can be reflected by the amount of compression of the elastic rubber ball nuts, and impact energy is absorbed simultaneously so that preliminary supporting of the tunnel is enabled to be more systematical and safer, and preliminary supporting time is shortened by the prefabricated form.
Description
Technical field
The present invention relates to a kind of self adaptation lock foot anchoring stock integrated apparatus and perform method.
Background technology
China is the country of vast in territory a, complex geologic conditions.Along with extensive, modernization, high-level Process of Urbanization Construction, Communication and Transportation Engineering construction, Hydraulic and Hydro-Power Engineering construction, mineral mining; make China's underground engineering construction increasing; in large-scale basis engineering construction; construction of tunnel is developed rapidly; tunnel quantity gets more and more, and length is more and more longer.Along with the expansion of construction of tunnel quantity and building size, inevitably run into soft stratum.Tunnel Passing soft stratum, because surrounding rock stability difference and the artificial stability distinguishing to tunnel surrounding are slipped up, or excavation and support is improper, then tunnel may occur that unstability, landslide even occur excessive deformation.Just under such background condition, by expanding arch, foundation loaded area, set up lock foot anchoring stock prevention and settlement Support System in Soft Rock Tunnels excessive deformation and even cave in and seem particularly important.
It is in IV, V, VI level Modelling of Tunnel Excavation in Soft Rock process that lock pin retouches bar, before lower section excavation, squeeze into wrong bar obliquely at arch springing place and its termination and steelframe are selected and firmly connect, to reach the globality and supporting capacity that increase supporting and protection structure, effectively can control the sedimentation of preliminary bracing.But most of lock foot anchoring stock applies at the construction field (site) is all according to construction experience, not Shi Hanzhang; The lock foot anchoring stock of different angles is not applied for Grades of Surrounding Rock; Simultaneously on-the-spot bench excavation is substantially ignored and is controlled preliminary bracing sedimentation by expanding arch springing loaded area; Job site expands arch, foundation loaded area, sets up lock foot anchoring stock and do not form complete technical system.
Summary of the invention
The object of the invention is, for overcoming above-mentioned the deficiencies in the prior art, a kind of self adaptation lock foot anchoring stock integrated apparatus is provided and applies method.
For achieving the above object, the present invention adopts following technical proposals:
Comprise the roof bolt plate affixed with steel arch-shelf with some hole slots, lock foot anchoring stock is connected with elastic ball nut thread by described hole slot, to realize installing and observation to described lock foot anchoring stock prestress application situation of the different angles of described lock foot anchoring stock.
Described elastic ball nut is elastic rubbery body spherical nut.
Described hole slot is four, is symmetrically arranged in four edges of described roof bolt plate.
The middle part of described roof bolt plate is welded with steel arch-shelf.
The arch springing of described steel arch-shelf has arch springing backing plate, and described arch springing backing plate is connected with described rigid arch frame by reinforcing rib; The side of described arch springing backing plate is provided with rule.
Described lock foot anchoring stock adopts one or more of following anchor pole: single full thread type lock foot anchoring stock, enjoy a double blessing screw-type lock foot anchoring stock or grouting rock bolt.
Self adaptation lock foot anchoring stock integrated apparatus apply method, comprise the following steps:
Step 1: frame founds steel arch-shelf;
Step 2: at the correct position welding roof bolt plate of steel arch-shelf;
Step 3: perform lock foot anchoring stock, the end of lock foot anchoring stock is connected with roof bolt plate by elastomeric ball nut, according to on-the-spot country rock situation by spheroid nut self-regulation anchor pole angle, reaches best to make anchoring effect.
Wherein, in step 1, in tunnel step excavation process, first settle backing plate at steel arch-shelf arch springing position, then frame founds steel arch-shelf, described steel arch-shelf is connected by reinforcing rib with arch springing backing plate.
In step 2, ensure that arch springing backing plate level is laid, be convenient to from rule reading tunnel, backing plate side bulk settling data.
In step 3, described lock foot anchoring stock adopts screw-type anchor pole of enjoying a double blessing; Arch springing backing plate, steel arch-shelf, lock foot anchoring stock device together constitute weak surrounding rock hardened system.
The invention has the beneficial effects as follows:
(1) the full thread type anchor pole of a kind of self adaptation lock foot anchoring stock integrated apparatus of the present invention is when mounted, by spherical nut, and the installation of lock foot anchoring stock self adaptation different angles;
(2) hemisphere bottom spherical nut of the present invention belongs to elastic rubbery body, realized to the prestressed control of lock foot anchoring stock, meanwhile, under Impact Load by the decrement controlling elastomeric ball, elastomeric ball can Absorbable rod impact energy, alleviates the destruction of country rock.
(3) the arch springing backing plate of a kind of self adaptation lock foot anchoring stock integrated apparatus of the present invention has rule in side, while increase bow member loaded area; Tunnel integral sinking value measured substantially by rule, obtain with former vault to the ratio of tunnel height after deducting tunnel sinking by vault sinking value vault relative sink, the situation of change of reflection country rock.
(4) screw-type anchor pole of enjoying a double blessing increases the diameter of anchor pole, improves the pretightning force of anchor pole, increases frictional force, guarantees the effective load-carrying properties of bolt support, strengthens anchor pole to the fastening effect of country rock, improves the globality of country rock.
(5) what present systemization realized passes through to expand arch, foundation loaded area, set up lock foot anchoring stock prevention and settlement Support System in Soft Rock Tunnels excessive deformation, and in-site installation prefab form is convenient and swift.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of self adaptation lock foot anchoring stock integrated apparatus of the present invention;
Fig. 2 is the schematic diagram of elastic sphere nut of the present invention;
Fig. 3 is the type schematic diagram of screw-type lock foot anchoring stock of the present invention;
Fig. 4 is the structural representation of roof bolt plate of the present invention.
Wherein, 1, steel arch-shelf; 2, arch springing backing plate; 3, rule; 4, reinforcing rib; 5, single full thread formula lock foot anchoring stock; 6, two screw-type lock foot anchoring stock; 7, rubber ball body; 8, hex nut; 9, elastic sphere nut; 10, roof bolt plate; 11, hole slot.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments, should be noted that following explanation is only to explain the present invention, not limiting its content.
As shown in Figure 1, 2, 3, a kind of self adaptation lock foot anchoring stock integrated apparatus device, comprise steel arch-shelf 1 and arch springing backing plate 2 is welded by reinforcing rib 4, the side of described arch springing backing plate 2 is provided with rule 3, described roof bolt plate 9 is provided with 4 symmetrical hole slots 11, roof bolt plate 9 welds with steel arch-shelf 1, described elastic sphere nut 9 comprises establishes rubber ball body 7 and hex nut 8, described single full thread formula lock foot anchoring stock 5 or two screw-type lock foot anchoring stock 6 by elastic sphere nut 9 Shi Hanzhang, and contact with roof bolt plate 9.
When applying self adaptation lock foot anchoring stock integrated apparatus, can be undertaken by following operating procedure:
(1), when frame founds steel arch-shelf 1 in tunnel step excavation process, first backing plate 2 is settled at steel arch-shelf arch springing position;
(2) ensure that arch springing backing plate level is laid, be convenient to backing plate side rule 3 and read tunnel bulk settling data;
(3) arch springing backing plate is connected with steel arch-shelf by reinforcing rib 4;
(4) first the roof bolt plate 10 up and down with four hole slots 11 is welded with bow member 1 at steel arch-shelf correct position;
(5) single full thread formula lock foot anchoring stock 5 or two screw-type lock foot anchoring stock 6 is selected according to on-the-spot country rock situation;
(6) lock foot anchoring stock is contacted with roof bolt plate 10 by elastic sphere nut 9, according to on-the-spot country rock situation by elastic sphere nut 9 self-regulation anchor pole angle;
(7), after arrangement has operated, arch springing backing plate 2, steel arch-shelf 1, lock foot anchoring stock device 5 together constitute weak surrounding rock hardened system.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. a self adaptation lock foot anchoring stock integrated apparatus, it is characterized in that: comprise the roof bolt plate affixed with steel arch-shelf with some hole slots, lock foot anchoring stock is connected with elastic ball nut thread by described hole slot, to realize installing and observation to described lock foot anchoring stock prestress application situation of the different angles of described lock foot anchoring stock, the arch springing of described steel arch-shelf has arch springing backing plate.
2. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 1, is characterized in that: described elastic ball nut is elastic rubbery body spherical nut.
3. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 1, is characterized in that: described hole slot is four, is symmetrically arranged in four edges of described roof bolt plate.
4. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 1, is characterized in that: the middle part of described roof bolt plate is welded with steel arch-shelf; Described arch springing backing plate is connected with described rigid arch frame by reinforcing rib.
5. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 1, is characterized in that: the side of described arch springing backing plate is provided with rule.
6. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 1, is characterized in that: described lock foot anchoring stock adopts one or more of following anchor pole: single full thread type lock foot anchoring stock, enjoy a double blessing screw-type lock foot anchoring stock or grouting rock bolt.
7. self adaptation lock foot anchoring stock integrated apparatus apply a method, comprise the following steps:
Step 1: frame founds steel arch-shelf;
Step 2: at the correct position welding roof bolt plate of steel arch-shelf;
Step 3: perform lock foot anchoring stock, the end of lock foot anchoring stock is connected with roof bolt plate by elastomeric ball nut, according to on-the-spot country rock situation by spheroid nut self-regulation anchor pole angle, reaches best to make anchoring effect.
8. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 7 apply method, it is characterized in that: in step 1, in tunnel step excavation process, first settle backing plate at steel arch-shelf arch springing position, frame founds steel arch-shelf again, and described steel arch-shelf is connected by reinforcing rib with arch springing backing plate.
9. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 7 apply method, it is characterized in that: in step 2, ensure that arch springing backing plate level is laid, be convenient to from rule reading tunnel, backing plate side bulk settling data.
10. a kind of self adaptation lock foot anchoring stock integrated apparatus according to claim 7 apply method, it is characterized in that: in step 3, described lock foot anchoring stock adopts screw-type anchor pole of enjoying a double blessing; Arch springing backing plate, steel arch-shelf, lock foot anchoring stock device together constitute weak surrounding rock hardened system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185360.8A CN104832200A (en) | 2015-04-17 | 2015-04-17 | Self-adaptive feet-lock bolt integrated device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185360.8A CN104832200A (en) | 2015-04-17 | 2015-04-17 | Self-adaptive feet-lock bolt integrated device and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104832200A true CN104832200A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510185360.8A Pending CN104832200A (en) | 2015-04-17 | 2015-04-17 | Self-adaptive feet-lock bolt integrated device and application method thereof |
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| Country | Link |
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| CN (1) | CN104832200A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401614A (en) * | 2016-10-17 | 2017-02-15 | 中铁五局集团第五工程有限责任公司 | Supporting structure for large-section weak surrounding rock tunnel construction and construction method thereof |
| CN106523004A (en) * | 2016-12-23 | 2017-03-22 | 山东大学 | Rigid-after-flexible feet-lock bolt combined supporting device and installation method |
| CN106677805A (en) * | 2016-12-28 | 2017-05-17 | 中铁第四勘察设计院集团有限公司 | Connecting device of tunnel steel frame and locking anchor pipe |
| CN106703854A (en) * | 2017-01-05 | 2017-05-24 | 中铁工程设计咨询集团有限公司 | Supporting device used for tunnel primary supporting structure and construction method thereof |
| CN106968695A (en) * | 2017-05-03 | 2017-07-21 | 云南建投基础工程有限责任公司 | A kind of prefabrication type tunnel lock foot anchoring stock and steelframe connecting elements |
| CN106979024A (en) * | 2017-04-27 | 2017-07-25 | 中铁十局集团第四工程有限公司 | A kind of construction method of fixed tunnel bracing members and lock pin |
| CN109305391A (en) * | 2018-08-08 | 2019-02-05 | 上海宇航系统工程研究所 | Compress relieving mechanism and its method |
| CN109681250A (en) * | 2018-12-20 | 2019-04-26 | 宁波交通工程咨询监理有限公司 | A kind of mounting structure of L-type lock foot anchoring stock |
| CN112211653A (en) * | 2020-10-20 | 2021-01-12 | 中国铁建重工集团股份有限公司 | Steel arch support structure and installation method thereof |
-
2015
- 2015-04-17 CN CN201510185360.8A patent/CN104832200A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401614A (en) * | 2016-10-17 | 2017-02-15 | 中铁五局集团第五工程有限责任公司 | Supporting structure for large-section weak surrounding rock tunnel construction and construction method thereof |
| CN106523004A (en) * | 2016-12-23 | 2017-03-22 | 山东大学 | Rigid-after-flexible feet-lock bolt combined supporting device and installation method |
| CN106677805A (en) * | 2016-12-28 | 2017-05-17 | 中铁第四勘察设计院集团有限公司 | Connecting device of tunnel steel frame and locking anchor pipe |
| CN106677805B (en) * | 2016-12-28 | 2019-02-05 | 中铁第四勘察设计院集团有限公司 | A kind of attachment device of tunnel steelframe and lock foot anchor tube |
| CN106703854A (en) * | 2017-01-05 | 2017-05-24 | 中铁工程设计咨询集团有限公司 | Supporting device used for tunnel primary supporting structure and construction method thereof |
| CN106979024A (en) * | 2017-04-27 | 2017-07-25 | 中铁十局集团第四工程有限公司 | A kind of construction method of fixed tunnel bracing members and lock pin |
| CN106979024B (en) * | 2017-04-27 | 2019-02-01 | 中铁十一局集团第四工程有限公司 | A kind of construction method of fixed tunnel bracing members and lock foot |
| CN106968695A (en) * | 2017-05-03 | 2017-07-21 | 云南建投基础工程有限责任公司 | A kind of prefabrication type tunnel lock foot anchoring stock and steelframe connecting elements |
| CN106968695B (en) * | 2017-05-03 | 2023-10-20 | 云南建投基础工程有限责任公司 | Prefabricated tunnel lock foot stock and steelframe connecting element |
| CN109305391A (en) * | 2018-08-08 | 2019-02-05 | 上海宇航系统工程研究所 | Compress relieving mechanism and its method |
| CN109681250A (en) * | 2018-12-20 | 2019-04-26 | 宁波交通工程咨询监理有限公司 | A kind of mounting structure of L-type lock foot anchoring stock |
| CN112211653A (en) * | 2020-10-20 | 2021-01-12 | 中国铁建重工集团股份有限公司 | Steel arch support structure and installation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150812 |