CN105298515A - Grouting inverted arch supporting device and method - Google Patents
Grouting inverted arch supporting device and method Download PDFInfo
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- CN105298515A CN105298515A CN201510855433.XA CN201510855433A CN105298515A CN 105298515 A CN105298515 A CN 105298515A CN 201510855433 A CN201510855433 A CN 201510855433A CN 105298515 A CN105298515 A CN 105298515A
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- support body
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- slip casting
- arch
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- 238000000034 method Methods 0.000 title claims description 19
- 239000002002 slurry Substances 0.000 claims abstract description 60
- 238000007569 slipcasting Methods 0.000 claims description 54
- 239000000725 suspension Substances 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 26
- 238000005728 strengthening Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a grouting inverted arch supporting device which comprises an inverted arch hollow supporting body (1), a hollow anchor rod (2) and a slurry body (3), wherein multiple anchor rod holes are formed in the inverted arch hollow supporting body (1); one part of the hollow anchor rod (2) penetrates through the inverted arch hollow supporting body (1) from the interior of the anchor rod holes; the slurry body (3) is poured into the inverted arch hollow supporting body (1) and the hollow anchor rod (2); and when bottom plate supporting is performed, the inverted arch hollow supporting body (1) is attached to a roadway floor (9), the hollow anchor rod (2) penetrates through the inverted arch hollow supporting body (1), and one part of the anchor rod (2) stretches into an anchor rod drill hole (12). An organic structure is formed, the structural strength is high, and bottom heave of the roadway floor can be effectively controlled.
Description
Technical field
The present invention relates to a kind of Floor Heave in Roadway suspension device and method.
Background technology
By the impact of mining operation, coal mine roadway roof and floor and two helps rock mass produce distortion and produce displacement in tunnel, and namely the phenomenon that roadway floor upwards swells is referred to as pucking.The drift section that pucking causes reduces, hinder transport and pedestrian, obstruction mine ventilation, and serious meeting causes scrapping of whole piece tunnel, produces very large restriction to the production in mine and safety.
For a long time, domestic and international many experts and scholars have done a large amount of research work to coal mine roadway pucking mechanism and control technology, propose many pucking control technologys.
The method of current floor lift control is roughly divided into three classes: one is " digging the end " method, and the part rock that pucking has occurred by tunnel is removed, and recovers drift section and amasss; Two is destressing methods, its mainly by arrange joint-cutting groove, relieving roadway, pressure relief vent even the method such as explosion make original continuous print rock mass be in discrete state, thus make floor rock be in stress relaxed area, and then keep the stable of base plate; Three is reinforcing method, namely takes to set the pucking amount that the jacking of floor measures such as base plate anchor pole come ACTIVE CONTROL tunnel.
Should be used for seeing according to current scene, method that the first " digs the end " makes many mines have to drop into a large amount of man power and materials and does the interim work for the treatment of such as " digging the end ", and then affects the normal production in colliery, causes the waste of person property.The theoretical foundation of the second destressing method is still immature, should be used for seeing that it is the poorest to the prevention effect of pucking from scene, and takes the engineering quantity of this kind of method comparatively large, therefore on-the-spot application is few.The theoretical foundation of the third method is comparatively ripe, compared to other two kinds of methods, can accomplish the effect of ACTIVE CONTROL Floor Heave in Roadway to a certain extent.But for some high stress tunnels, be which kind of method all poor effect, Floor Heave in Roadway problem cannot be controlled preferably.
At present, in prior art, also do not have one effectively can control Floor Heave in Roadway, especially the support apparatus of high stress tunnel pucking and method.
Summary of the invention
Controlling the technical problem of base plate pucking weak effect in order to solve prior art, the invention provides arch suspension device of a kind of slip casting anti-end and supporting method.
The technical solution used in the present invention is as follows:
Slip casting anti-end arch suspension device, comprise arch hollow support body of the anti-end, hollow bolt and slurry, arch hollow support body of the described anti-end is formed with some boltholes, described hollow bolt part through arch hollow support body of the described anti-end, is perfused with described slurry in arch hollow support body of the described anti-end and described hollow bolt in described bolthole; When carrying out base plate supporting, arch hollow support body of the described anti-end being touched roadway floor and places, by described hollow bolt through arch hollow support body of the described anti-end, its part is stretched in armature boring.
Arch suspension device also comprises hold-down nut at the above-mentioned slip casting anti-end, and described hold-down nut is threaded with described hollow bolt, encircles connection between hollow support body for strengthening described hollow bolt and the described anti-end.
Arch suspension device of the above-mentioned slip casting anti-end also comprises sealing pallet, described sealing pallet comprises disk body, sealing ring and sealing mat, and described sealing its formation has pallet circular hole, described hollow bolt partially passes through, and described sealing pallet is installed between arch hollow support body of the described anti-end and described hold-down nut.
Arch suspension device of the above-mentioned slip casting anti-end also comprises the stifled slurry plug of double end, and described double end stifled slurry plug is formed with stifled slurry plug circular hole, and described hollow bolt partially passes through, and described double end stifled slurry plug is installed between arch hollow support body of the described anti-end and described armature boring.
Arch suspension device also comprises anchor head spillage device at the above-mentioned slip casting anti-end, and described anchor head spillage device comprises slurry leakage hole and backstay; Described anchor head spillage device is installed on described hollow bolt top, extend in described armature boring, for making described slurry enter in described armature boring in described hollow bolt, and makes described hollow bolt be in described armature boring center.
In arch suspension device of the above-mentioned slip casting anti-end, described hollow bolt tail end offers grouting port, and described slurry injects described hollow bolt from grouting port, and described grouting port is configured with the stifled slurry plug of anchor tail, for stoping described slurry excessive.
In arch suspension device of the above-mentioned slip casting anti-end, the part that described hollow bolt is in arch hollow support body of the described anti-end offers some support body slurry leakage holes, and described slurry is entered in arch hollow support body of the described anti-end by described support body slurry leakage hole.
In arch suspension device of the above-mentioned slip casting anti-end, arch hollow support body of the described anti-end is divided into left support body and right support body two parts, described left support body comprises outer socket, left overfall mouth, middle part anchor pole exit orifice and left FLOOR ANCHOR hole, described right support body comprises interior socket, right overfall mouth, middle part anchor pole endoporus and right FLOOR ANCHOR hole.
Arch supporting method of a kind of slip casting anti-end, adopts arch suspension device of the above-mentioned slip casting anti-end to carry out supporting, comprises the steps:
A) be stitched together by socket in the described outer socket of described left support body and described right support body, form arch hollow support body of the described anti-end, described middle part anchor pole endoporus and described middle part anchor pole exit orifice overlap, form middle part bolthole;
B) arch hollow support body of the described anti-end is touched described roadway floor to place, according to the described middle part bolthole on arch hollow support body of the described anti-end, left FLOOR ANCHOR hole and right FLOOR ANCHOR hole site, described roadway floor is got three described armature borings;
C) described hollow bolt is stretched in described armature boring through arch hollow support body of the described anti-end;
D) start slip casting operation, in described hollow bolt, inject described slurry by described grouting port, when described slurry overflows from described left overfall mouth or right overfall mouth, stop slip casting operation.
Technique scheme of the present invention has the following advantages compared to existing technology:
1. slip casting provided by the invention anti-end arch suspension device, the anti-end is adopted to encircle hollow support body and hollow bolt combining structure, and by slurry, combining structure is organically combined, the strong anti-compression property of slurry and the strong pull resistance of structure of steel product is made to realize organic complementary, therefore, compressive strength of the present invention and tensile strength all obtain effective lifting, can effectively control roadway floor pucking.
2. slip casting provided by the invention anti-end arch suspension device, adopt the structure such as hollow bolt and anchor head spillage device, support body slurry leakage hole, can make to the slip casting realized during hollow bolt slip casting anti-end arch hollow support body and roadway floor fragmented rock body simultaneously, therefore, the present invention effectively can simplify the use of grouting with plunger and equipment, effectively improves supporting operating efficiency and reduces operating cost.
3. slip casting provided by the invention anti-end arch suspension device, prop up body rod owing to adopting hold-down nut, sealing pallet and arch hollow of the anti-end and strengthen structure, contact because sealing pallet encircles hollow support body with the anti-end simultaneously, instead of contact with rock mass, thus the impact that the rough and uneven in surface surface of rock mass is fixed sealing pallet can be avoided, simultaneously, also due to will slurry be filled in sealing pallet, intensity increases, not easily damaged by pressure, therefore, the present invention effectively can improve the stability of hollow bolt anchored force, and then effectively controls roadway floor pucking.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is slip casting of the present invention anti-end arch suspension device sectional view;
Fig. 2 is slip casting of the present invention anti-end arch suspension device hollow bolt assembly structure front view;
Fig. 3 is slip casting of the present invention anti-end arch suspension device sealing pallet front view;
Fig. 4 is slip casting of the present invention anti-end arch suspension device sealing pallet top view;
Fig. 5 is slip casting of the present invention anti-end arch suspension device anchor head spillage device front view;
Fig. 6 is slip casting of the present invention anti-end arch suspension device anchor head spillage device left view;
Fig. 7 is the left support body front view of slip casting of the present invention anti-end arch suspension device;
Fig. 8 is the left support body right view of slip casting of the present invention anti-end arch suspension device;
Fig. 9 is the left support body top view of slip casting of the present invention anti-end arch suspension device;
Figure 10 is that the slip casting of the present invention anti-end left support body A-A of arch suspension device is to sectional view;
Figure 11 is the right support body front view of slip casting of the present invention anti-end arch suspension device;
Figure 12 is the right support body left view of slip casting of the present invention anti-end arch suspension device;
Figure 13 is the right support body top view of slip casting of the present invention anti-end arch suspension device;
Figure 14 is that the slip casting of the present invention anti-end right support body B-B of arch suspension device is to sectional view.
Be labeled as in figure: 1-anti-end arch hollow support body, 2-hollow bolt, 3-slurry, 4-hold-down nut, 5-seals pallet, the stifled slurry plug of 6-double end, 7-anchor head spillage device, the stifled slurry plug of 8-anchor tail, 9-roadway floor, the left support body of 10-, the right support body of 11-, 201-slurry leakage hole, 202-support body slurry leakage hole, 501-disk body, 502-sealing ring, 503-sealing mat, 701-slurry leakage hole, 702-backstay, the outer socket of 1001-, the left overfall mouth of 1002-, anchor pole exit orifice in the middle part of 1003-, the left FLOOR ANCHOR hole of 1004-, socket in 1101-, the right overfall mouth of 1102-, anchor pole endoporus in the middle part of 1103-, the right FLOOR ANCHOR hole of 1104-.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
It is the preferred embodiment of slip casting of the present invention anti-end arch suspension device shown in Fig. 1-14.
Arch suspension device of the described slip casting anti-end, comprise arch hollow support body of the anti-end 1, hollow bolt 2 and slurry 3, arch hollow support body of the described anti-end 1 is formed with some boltholes, described hollow bolt 2 part through arch hollow support body of the described anti-end 1, is perfused with described slurry 3 in arch hollow support body of the described anti-end 1 and described hollow bolt 2 in described bolthole.
Arch suspension device also comprises hold-down nut 4 at the described slip casting of the present embodiment anti-end, and described hold-down nut 4 is threaded with described hollow bolt 2, encircles connection between hollow support body 1 for strengthening described hollow bolt 2 and the described anti-end.
The arch suspension device of the described slip casting anti-end of the present embodiment also comprises sealing pallet 5, described sealing pallet 5 comprises disk body 501, sealing ring 502 and sealing mat 503, described sealing pallet 5 is formed with pallet circular hole, described hollow bolt 2 partially passes through, and described sealing pallet 5 is installed between arch hollow support body of the described anti-end 1 and described hold-down nut 4.
The arch suspension device of the described slip casting anti-end of the present embodiment also comprises double end stifled slurry plug 6, described double end stifled slurry plug 6 is formed with stifled slurry plug circular hole, described hollow bolt 2 partially passes through, and described double end stifled slurry plug 6 is installed between arch hollow support body of the described anti-end 1 and described armature boring 12.
The arch suspension device of the described slip casting anti-end of the present embodiment also comprises anchor head spillage device 7, and described anchor head spillage device 7 comprises slurry leakage hole 701 and backstay 702; Described anchor head spillage device 7 is installed on described hollow bolt 2 top, extend in described armature boring 12, for making described slurry 3 enter in described armature boring 12 in described hollow bolt 2, and makes described hollow bolt 2 be in described armature boring 12 center.
In the present embodiment, described hollow bolt 2 tail end offers grouting port 201, and described slurry 3 injects described hollow bolt 2 from grouting port 201, and described grouting port 201 is configured with anchor tail stifled slurry plug 8, for stoping described slurry 3 excessive.The part that described hollow bolt 2 is in arch hollow support body of the described anti-end 1 offers some support body slurry leakage holes 202, and described slurry 3 is entered in arch hollow support body of the described anti-end 1 by described support body slurry leakage hole 202.
In the present embodiment, arch hollow support body of the described anti-end 1 is divided into left support body 10 and right support body 11 two parts, described left support body 10 comprises outer socket 1001, left overfall mouth 1002, middle part anchor pole exit orifice 1003 and left FLOOR ANCHOR hole 1004, described right support body 11 comprises interior socket 1101, right overfall mouth 1102, middle part anchor pole endoporus 1103 and right FLOOR ANCHOR hole 1104.
Adopt arch suspension device of the anti-end of the slip casting described in the present embodiment to carry out supporting, comprise the steps:
A) the described outer socket 1001 of described left support body 10 is stitched together with socket 1101 in described right support body 11, form arch hollow support body of the described anti-end 1, described middle part anchor pole endoporus 1003 and described middle part anchor pole exit orifice 1103 overlap, form middle part bolthole;
B) arch hollow support body of the described anti-end 1 is touched described roadway floor 9 to place, according to the described middle part bolthole on arch hollow support body of the described anti-end 1, left FLOOR ANCHOR hole 1004 and position, right FLOOR ANCHOR hole 1104, described roadway floor 9 is got three described armature borings 12;
C) described hollow bolt 2 is stretched in described armature boring 12 through arch hollow support body of the described anti-end 1;
D) start slip casting operation, in described hollow bolt 2, inject described slurry 3 by described grouting port 201, when described slurry 3 overflows from described left overfall mouth 1002 or right overfall mouth 1102, stop slip casting operation.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (9)
1. slip casting anti-end arch suspension device, it is characterized in that: comprise arch hollow support body of the anti-end (1), hollow bolt (2) and slurry (3), described anti-end arch hollow support body (1) is formed with some boltholes, described hollow bolt (2) part through described anti-end arch hollow support body (1), is perfused with described slurry (3) in described anti-end arch hollow support body (1) and described hollow bolt (2) in described bolthole;
When carrying out base plate supporting, described anti-end arch hollow support body (1) is touched roadway floor (9) place, by described hollow bolt (2) through described anti-end arch hollow support body (1), its part is stretched in armature boring (12).
2. slip casting according to claim 1 anti-end arch suspension device, it is characterized in that: also comprise hold-down nut (4), described hold-down nut (4) is threaded with described hollow bolt (2), encircles connection between hollow support body (1) for strengthening described hollow bolt (2) and the described anti-end.
3. slip casting according to claim 2 anti-end arch suspension device, it is characterized in that: also comprise sealing pallet (5), described sealing pallet (5) comprises disk body (501), sealing ring (502) and sealing mat (503), described sealing pallet (5) is formed with pallet circular hole, described hollow bolt (2) partially passes through, and described sealing pallet (5) is installed between described anti-end arch hollow support body (1) and described hold-down nut (4).
4. slip casting according to claim 2 anti-end arch suspension device, it is characterized in that: also comprise stifled slurry plug (6) of double end, stifled slurry plug (6) of described double end is formed with stifled slurry plug circular hole, described hollow bolt (2) partially passes through, and stifled slurry plug (6) of described double end is installed between described anti-end arch hollow support body (1) and described armature boring (12).
5. slip casting according to claim 2 anti-end arch suspension device, it is characterized in that: also comprise anchor head spillage device (7), described anchor head spillage device (7) comprises slurry leakage hole (701) and backstay (702);
Described anchor head spillage device (7) is installed on described hollow bolt (2) top, extend in described armature boring (12), for making described slurry (3) enter in described armature boring (12) in described hollow bolt (2), and described hollow bolt (2) is made to be in described armature boring (12) center.
6. according to the arbitrary described slip casting of claim 2-5 arch suspension device of the anti-end, it is characterized in that: described hollow bolt (2) tail end offers grouting port (201), described slurry (3) injects described hollow bolt (2) from grouting port (201), described grouting port (201) is configured with stifled slurry plug (8) of anchor tail, for stoping described slurry (3) excessive.
7. slip casting according to claim 6 anti-end arch suspension device, it is characterized in that: the part that described hollow bolt (2) is in described anti-end arch hollow support body (1) offers some support body slurry leakage holes (202), described slurry (3) is entered in described anti-end arch hollow support body (1) by described support body slurry leakage hole (202).
8. slip casting according to claim 7 anti-end arch suspension device, it is characterized in that: described anti-end arch hollow support body (1) is divided into left support body (10) and right support body (11) two parts, described left support body (10) comprises outer socket (1001), left overfall mouth (1002), middle part anchor pole exit orifice (1003) and left FLOOR ANCHOR hole (1004), described right support body (11) comprises interior socket (1101), right overfall mouth (1102), middle part anchor pole endoporus (1103) and right FLOOR ANCHOR hole (1104).
9. a slip casting anti-end arch supporting method, is characterized in that: adopt slip casting according to claim 8 anti-end arch suspension device to carry out supporting, comprise the steps:
A) the interior socket (1101) of the described outer socket (1001) of described left support body (10) with described right support body (11) is stitched together, form described anti-end arch hollow support body (1), described middle part anchor pole endoporus (1003) and described middle part anchor pole exit orifice (1103) overlap, form middle part bolthole;
B) described anti-end arch hollow support body (1) is touched described roadway floor (9) to place, according to the described middle part bolthole on described anti-end arch hollow support body (1), left FLOOR ANCHOR hole (1004) and right FLOOR ANCHOR hole (1104) position, described roadway floor (9) is got three described armature borings (12);
C) described hollow bolt (2) is stretched in described armature boring (12) through described anti-end arch hollow support body (1);
D) slip casting operation is started, in described hollow bolt (2), described slurry (3) is injected by described grouting port (201), when described slurry (3) overflows from described left overfall mouth (1002) or right overfall mouth (1102), stop slip casting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510855433.XA CN105298515B (en) | 2015-12-01 | 2015-12-01 | The anti-bottom arch suspension device of slip casting and method for protecting support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510855433.XA CN105298515B (en) | 2015-12-01 | 2015-12-01 | The anti-bottom arch suspension device of slip casting and method for protecting support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298515A true CN105298515A (en) | 2016-02-03 |
| CN105298515B CN105298515B (en) | 2019-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510855433.XA Expired - Fee Related CN105298515B (en) | 2015-12-01 | 2015-12-01 | The anti-bottom arch suspension device of slip casting and method for protecting support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105298515B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617068A (en) * | 2019-09-23 | 2019-12-27 | 六盘水师范学院 | Design and construction method for coal mine stoping roadway |
| CN111764934A (en) * | 2020-07-08 | 2020-10-13 | 上海应用技术大学 | Advanced grouting support method for advanced support small guide pipe and deep soft rock roadway |
-
2015
- 2015-12-01 CN CN201510855433.XA patent/CN105298515B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617068A (en) * | 2019-09-23 | 2019-12-27 | 六盘水师范学院 | Design and construction method for coal mine stoping roadway |
| CN111764934A (en) * | 2020-07-08 | 2020-10-13 | 上海应用技术大学 | Advanced grouting support method for advanced support small guide pipe and deep soft rock roadway |
| CN111764934B (en) * | 2020-07-08 | 2022-07-05 | 上海应用技术大学 | Advanced grouting support method for advanced support small guide pipe and deep soft rock roadway |
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| Publication number | Publication date |
|---|---|
| CN105298515B (en) | 2019-03-22 |
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Granted publication date: 20190322 |