CN108868827A - Km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing - Google Patents
Km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing Download PDFInfo
- Publication number
- CN108868827A CN108868827A CN201810740392.3A CN201810740392A CN108868827A CN 108868827 A CN108868827 A CN 108868827A CN 201810740392 A CN201810740392 A CN 201810740392A CN 108868827 A CN108868827 A CN 108868827A
- Authority
- CN
- China
- Prior art keywords
- hole
- injected hole
- anchor cable
- slip casting
- deep
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007569 slipcasting Methods 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 239000011435 rock Substances 0.000 claims abstract description 25
- 230000010339 dilation Effects 0.000 claims abstract description 9
- 239000011440 grout Substances 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 229920002472 Starch Polymers 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000004911 serous fluid Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to it is a kind of mine, tunnel, underground engineering support the matched km deep-well high-ground stress combination of steel rope injection hole sealing device of slip casting and method for sealing, hole sealing device includes the grouting pipe infused slurries in injected hole, the hole packer blocked to injected hole, and the hole packer is mounted on injected hole aperture；Anchor cable is equipped with by cable support frame in injected hole, guiding cap is installed in anchor cable head, is also equipped with gas-guide tube in injected hole with anchor cable；The configuration of the present invention is simple can block tight raising grouting pressure and slip casting dilation angle, preferably fill wall-rock crack, to improve the effect of grouting support, can be widely used for mine, tunnel, underground engineering support.
Description
Technical field
The present invention relates to injection hole sealing technical field more particularly to it is a kind of mine, tunnel, underground engineering support note
Starch matched km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing.
Background technique
With the extension of pit mining level, most mines subsequently enter deep mining, strata behaviors aggravation, tunnel
Rate of deformation is fast, deflection is big, and surrounding rock structure is unstable.In the side such as underground engineering, mining engineering that geotechnical engineering field is related to
The engineering reinforcement in face is needed using grouting support.Grouting support is to fill wall-rock crack by slurries to be used to surrounding rock consolidation
The stability on stratum is improved, so as to effectively control the deformation and stability on stratum.
Hole sealing device mainly uses cotton yarn to fill gap sealing of hole at present.Anchor is combined using slip casting in km Deep Soft Rock tunnel
It when rope support technology mortar depositing construction, is influenced by high-ground stress, relaxation zone constantly increases after tunnelling, and country rock, which is easy to appear, to be split
Gap.The closure of drilling and sealing device is not tight, and slurries are easy to leak from crack；Grouting pressure is more than that 3MPa is easy for rushing hole packer
It opens, causes slip casting effect bad or direct failure, wall-rock crack cannot be filled effectively, and grouting serous fluid dilation angle is small, cannot
It plays anchoring anchor cable and reinforcing is filled to wall-rock crack, strengthen Surrounding Rock Strength, or even design of its support requirement cannot be reached.
Summary of the invention
To overcome above-mentioned technical problem, the present invention provides one kind not only can control spillage, but also can improve and infuse to borehole sealing
Starch the km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing of pressure.
To achieve the above object, realization that the present invention adopts the following technical solutions：A kind of km deep-well high-ground stress group
Anchor rope grouting hole sealing device is closed, including by slurries note to the grouting pipe in injected hole, the hole packer that is blocked to injected hole,
The hole packer is mounted on injected hole aperture；Anchor cable is equipped with by cable support frame in injected hole, is installed in anchor cable head
There is guiding cap, is also equipped with gas-guide tube in injected hole with anchor cable.
The anchor cable is sleeved in flexible metal conduit.
The grouting pipe is that four points of galvanized pipes are process.
Hole packer is cement grout and the cotton yarn for being stained with cement grout, which can solidify injected hole aperture,
It prevents the excessive leakage of grouting pressure and hole packer from going out failure, improves grouting pressure, increase slip casting dilation angle, improve country rock and hold
Power is carried, Surrounding Rock Strength is enhanced.
Guiding cap is fixed on anchor cable head by iron wire.
Grouting pipe is connected by valve and external flow inlet road, is equipped with pressure gauge on flow inlet road.
The anchor cable is arranged in injected hole in the form of three, and anchor cable is fixed on the anchor outside injected hole by three hole locksets
On rope disk；Gas-guide tube is extended to anchor cable in injected hole bottom.
A method of sealing of hole being carried out using the km deep-well high-ground stress combination of steel rope injection hole sealing device, it is special
Sign is：
Step 1）, grouting pipe is arranged in injected hole, anchor cable, while anchor are also installed by cable support frame in injected hole
Rope is arranged in injected hole by its head mounted guiding cap, and gas-guide tube is also equipped in injected hole with anchor cable；
Step 2）, by hole packer injected hole aperture is blocked, be fixed on slip casting after grouting pipe is wrapped up using cotton yarn
Hole aperture；Hole packer is cement grout and the cotton yarn for being stained with cement grout, which can solidify injected hole aperture, is prevented
Only the excessive leakage of grouting pressure and hole packer go out failure, improve grouting pressure, increase slip casting dilation angle, improve country rock carrying
Power enhances Surrounding Rock Strength；
Step 3）, slip casting for the first time when by a small amount of slurries by flow inlet road, valve and grouting pipe note in injected hole, by slurry
Liquid self weight fills aperture gap and wall-rock crack；
Step 4）, open flow inlet road shutoff valve, extra slurries by pipeline discharge grouting pipe, then wait slip casting
It is grout curing in hole；
Step 5）, after 48 hours by the slip casting again of flow inlet road, valve and grouting pipe, by gas-guide tube after gas-guide tube plasma discharge
It blocks；Slip casting is turned out after gas-guide tube plasma discharge to be already filled in injected hole；
Step 6）, finally continue slip casting to design pressure, neighbouring wall-rock crack is filled as grouting pressure increases.
The present invention has the positive effect that：
The configuration of the present invention is simple not only can ensure that the plugging action of fluid filling hole sealing device, but also can improve grouting pressure, increase grouting serous fluid
Dilation angle, to improve the effect of grouting support.To improve sealing of hole effect, slip casting operation is divided into and is executed twice, prevents from infusing
Hole packer is washed in slurry pressure rising open, and slip casting is caused to fail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of use state of the invention.
Fig. 2 is the structural schematic diagram for installing and using state of the invention.
Fig. 3 is partial enlargement structural representation of the invention.
Specific embodiment
Referring to Fig. 1,2,3, a kind of km deep-well high-ground stress combination of steel rope injection hole sealing device, including by slurries note to note
The hole packer 2 starching the grouting pipe 1 in hole, being blocked to injected hole, the hole packer 2 are mounted on injected hole aperture；It is infusing
Anchor cable 3 is equipped with by cable support frame 6 in slurry hole, guiding cap 7 is installed on 3 head of anchor cable, with anchor cable 3 in injected hole
It is also equipped with gas-guide tube 5.The anchor cable 3 is sleeved in flexible metal conduit 4.The grouting pipe 1 is that four points of galvanized pipes are process.It leads
3 head of anchor cable is fixed on by iron wire 14 to cap 7.
Hole packer 2 is cement grout and the cotton yarn for being stained with cement grout, which can solidify injected hole aperture,
It prevents the excessive leakage of grouting pressure and hole packer from going out failure, improves grouting pressure, increase slip casting dilation angle, improve country rock and hold
Power is carried, Surrounding Rock Strength is enhanced.
Grouting pipe 1 is connected by valve and external flow inlet road 11, is equipped with pressure gauge on flow inlet road 11
12。
Three anchor cables 3 are fixed by anchor cable disk 10 outside injected hole, three anchor cables 3 pass through three hole locksets 9 and are fixed on anchor
On rope disk 10；At 4 sets of flexible metal conduit in 3 outside of anchor cable.Gas-guide tube 5 is extended to anchor cable 3 in injected hole bottom.
A method of sealing of hole being carried out using the km deep-well high-ground stress combination of steel rope injection hole sealing device, it is special
Sign is：
Step 1）, grouting pipe 1 is arranged in injected hole, anchor cable 3 is also installed by cable support frame 6 in injected hole, together
When anchor cable 3 be arranged in injected hole by its head mounted guiding cap 7, gas-guide tube is also equipped in injected hole with anchor cable 3
5；
Step 2）, by hole packer 2 injected hole aperture is blocked, note is fixed on after grouting pipe 1 is wrapped up using cotton yarn
Starch hole aperture；Hole packer 2 is cement grout and the cotton yarn for being stained with cement grout, which can consolidate injected hole aperture
Change, prevent the excessive leakage of grouting pressure and hole packer from going out failure, improve grouting pressure, increase slip casting dilation angle, raising is enclosed
Rock bearing capacity enhances Surrounding Rock Strength；
Step 3）, slip casting for the first time when by a small amount of slurries by 1 note to injected hole of flow inlet road 11, valve and grouting pipe, according to
Aperture gap and wall-rock crack are filled by slurries self weight；8 slurries to fill after once grouting in Fig. 1,15 be injected hole
Rise and draw segment structure, distance is the anchoring section structure of injected hole in 5 meters, 16, and distance is at 11 meters；
Step 4）, open flow inlet road 11 on shutoff valve, extra slurries by pipeline discharge grouting pipe 1, then wait
It is grout curing in injected hole；
Step 5）, after 48 hours by flow inlet road 11, valve and the slip casting again of grouting pipe 1, will be led after 5 plasma discharge of gas-guide tube
Tracheae 5 blocks；Slip casting is turned out after 5 plasma discharge of gas-guide tube to have infused in injected hole
It is full；13 slurries to be filled after secondary grouting in Fig. 1；
Step 6）, finally continue slip casting to design pressure, neighbouring wall-rock crack is filled as grouting pressure increases.
A small amount of slurries are infused by grouting pipeline in injected hole when slip casting for the first time, by slurries self weight by aperture gap and
The shutoff valve on grouting pipeline is opened in wall-rock crack filling, and Grouting Pipe is discharged by pipeline in extra slurries, is then waited in hole
It is grout curing, by grouting pipeline slip casting again after 48 hours, gas-guide tube is blocked after gas-guide tube plasma discharge, finally continues slip casting
To design pressure.It is not exposed that hole packer plays the role of slurries, improves grouting pressure.
Working principle of the present invention is as follows：
The present invention is in use, be fixed on slip casting aperture after grouting pipeline is wrapped up using cotton yarn, first using a small amount of slurries by group
It closes grouting cable anchor aperture and the filling of neighbouring wall-rock crack, grout cures front opening grouting pipeline valve, extra slurries passes through slip casting
Pipeline discharge；The slip casting again after grout curing near aperture turns out in slip casting combination of steel rope hole after permeability cell plasma discharge
It fills, then blocks exhaust pipe, continue slip casting, fill neighbouring wall-rock crack as grouting pressure increases.Once grouting metapore
Mouth is cured, and bears grouting pressure and is remarkably reinforced, and increases to 8MPa by original 3MPa, grouting pressure improves rear slurry diffusion half
Diameter significantly increases, and wall-rock crack filling effect is more preferable.
First time slip casting is carried out first, injects a small amount of slurries and aperture gap and neighbouring wall-rock crack are filled；After 48 hours
Second of slip casting is carried out, grouting pressure is improved to 8MPa, expands grout spreading range.
Claims (8)
1. a kind of km deep-well high-ground stress combination of steel rope injection hole sealing device, including infusing slurries to the Grouting Pipe in injected hole
Road（1）, hole packer that injected hole is blocked（2）, it is characterised in that：The hole packer（2）It is mounted on injected hole aperture；?
Pass through cable support frame in injected hole（6）Anchor cable is installed（3）, in anchor cable（3）Head is equipped with guiding cap（7）, with anchor cable
（3）Gas-guide tube is also equipped in injected hole（5）.
2. km deep-well high-ground stress combination of steel rope injection hole sealing device according to claim 1, it is characterised in that：It is described
Anchor cable（3）It is sleeved on flexible metal conduit（4）In.
3. km deep-well high-ground stress combination of steel rope injection hole sealing device according to claim 1, it is characterised in that：It is described
Grouting pipe（1）It is process for four points of galvanized pipes.
4. km deep-well high-ground stress combination of steel rope injection hole sealing device according to claim 1, it is characterised in that：Sealing of hole
Device（2）For cement grout and the cotton yarn for being stained with cement grout, which can solidify injected hole aperture, prevent slip casting pressure
The excessive leakage of power and hole packer go out failure, improve grouting pressure, increase slip casting dilation angle, improve load-carrying capacity of surrounding rock, enhancing
Surrounding Rock Strength.
5. km deep-well high-ground stress combination of steel rope injection hole sealing device according to claim 1, it is characterised in that：Guiding
Cap（7）Anchor cable is fixed on by iron wire（3）Head.
6. km deep-well high-ground stress combination of steel rope injection hole sealing device according to claim 1, it is characterised in that：Slip casting
Pipeline（1）Pass through valve and external flow inlet road（11）It is connected, on flow inlet road（11）On pressure gauge is installed（12）.
7. km deep-well high-ground stress combination of steel rope injection hole sealing device according to claim 1, it is characterised in that：It is described
Anchor cable（3）It is arranged in injected hole in the form of three, anchor cable（3）Pass through three hole locksets（9）The anchor cable being fixed on outside injected hole
Disk（10）On；Gas-guide tube（5）With anchor cable（3）It extends in injected hole bottom.
8. a kind of sealed using km deep-well high-ground stress combination of steel rope injection hole sealing device described in one of claim 1-7
The method in hole, it is characterised in that：
Step 1）, by grouting pipe（1）It is arranged in injected hole, also passes through cable support frame in injected hole（6）Anchor cable is installed
（3）, while anchor cable（3）By its head mounted guiding cap（7）It is arranged in injected hole, with anchor cable（3）In injected hole also
Gas-guide tube is installed（5）；
Step 2）, pass through hole packer（2）Injected hole aperture is blocked, by grouting pipe（1）It is fixed after being wrapped up using cotton yarn
In injected hole aperture；Hole packer（2）For cement grout and the cotton yarn for being stained with cement grout, the hole packer can to injected hole aperture into
Row solidification, prevents the excessive leakage of grouting pressure and hole packer from going out failure, improves grouting pressure, increases slip casting dilation angle, mentions
High load-carrying capacity of surrounding rock enhances Surrounding Rock Strength；
Step 3）, slip casting for the first time when by a small amount of slurries pass through flow inlet road（11）, valve and grouting pipe（1）Infuse injected hole
It is interior, aperture gap and wall-rock crack are filled by slurries self weight；
Step 4）, open flow inlet road（11）On shutoff valve, grouting pipe is discharged by pipeline in extra slurries（1）, then
It waits grout curing in injected hole；
Step 5）, pass through flow inlet road after 48 hours（11）, valve and grouting pipe（1）Slip casting again, to gas-guide tube（5）Plasma discharge
Afterwards by gas-guide tube（5）It blocks；Gas-guide tube（5）Slip casting is turned out after plasma discharge to be already filled in injected hole；
Step 6）, finally continue slip casting to design pressure, neighbouring wall-rock crack is filled as grouting pressure increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740392.3A CN108868827A (en) | 2018-07-07 | 2018-07-07 | Km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740392.3A CN108868827A (en) | 2018-07-07 | 2018-07-07 | Km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108868827A true CN108868827A (en) | 2018-11-23 |
Family
ID=64300036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810740392.3A Pending CN108868827A (en) | 2018-07-07 | 2018-07-07 | Km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868827A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681252A (en) * | 2019-01-17 | 2019-04-26 | 平顶山平煤设计院有限公司 | A kind of slip casting combination of steel rope device and construction method |
| CN109707423A (en) * | 2019-01-25 | 2019-05-03 | 北京瑞威世纪铁道工程有限公司 | Early High-strength Quick Anchor Bolt anchor cable controls large deformation construction method |
| CN109798140A (en) * | 2019-02-21 | 2019-05-24 | 平顶山天安煤业股份有限公司六矿 | Km Deep Soft Rock fracture grouting support reinforcement method |
| CN110454200A (en) * | 2019-09-06 | 2019-11-15 | 贵州桥梁建设集团有限责任公司 | A kind of double-walled grouting with small pipe device and its construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790394A (en) * | 2015-04-23 | 2015-07-22 | 万军利 | Pressure anchor cable structure with prefabricated anchor head and construction method of pressure anchor cable structure |
| CN204677155U (en) * | 2015-01-13 | 2015-09-30 | 河南理工大学 | A kind of down-hole coal bed high strength rapid drilling hole sealing device |
| CN205840843U (en) * | 2016-07-24 | 2016-12-28 | 山东唐口煤业有限公司 | A kind of deep hole spacing injection hole sealing structure |
| CN106285555A (en) * | 2016-09-07 | 2017-01-04 | 淮南矿业(集团)有限责任公司 | High methane strong coal powder injection layer extraction borehole blowout prevention hole sealing device and method for sealing thereof |
| CN106907167A (en) * | 2017-05-03 | 2017-06-30 | 刘伟 | To long anchor cable gradation mortar depositing construction structure and its construction method on stope in hole |
-
2018
- 2018-07-07 CN CN201810740392.3A patent/CN108868827A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204677155U (en) * | 2015-01-13 | 2015-09-30 | 河南理工大学 | A kind of down-hole coal bed high strength rapid drilling hole sealing device |
| CN104790394A (en) * | 2015-04-23 | 2015-07-22 | 万军利 | Pressure anchor cable structure with prefabricated anchor head and construction method of pressure anchor cable structure |
| CN205840843U (en) * | 2016-07-24 | 2016-12-28 | 山东唐口煤业有限公司 | A kind of deep hole spacing injection hole sealing structure |
| CN106285555A (en) * | 2016-09-07 | 2017-01-04 | 淮南矿业(集团)有限责任公司 | High methane strong coal powder injection layer extraction borehole blowout prevention hole sealing device and method for sealing thereof |
| CN106907167A (en) * | 2017-05-03 | 2017-06-30 | 刘伟 | To long anchor cable gradation mortar depositing construction structure and its construction method on stope in hole |
Non-Patent Citations (1)
| Title |
|---|
| 薛军正等: "井底大断面关键永久硐室围岩变形机理及其控制技术", 《煤矿开采》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681252A (en) * | 2019-01-17 | 2019-04-26 | 平顶山平煤设计院有限公司 | A kind of slip casting combination of steel rope device and construction method |
| CN109707423A (en) * | 2019-01-25 | 2019-05-03 | 北京瑞威世纪铁道工程有限公司 | Early High-strength Quick Anchor Bolt anchor cable controls large deformation construction method |
| CN109798140A (en) * | 2019-02-21 | 2019-05-24 | 平顶山天安煤业股份有限公司六矿 | Km Deep Soft Rock fracture grouting support reinforcement method |
| CN109798140B (en) * | 2019-02-21 | 2020-12-18 | 平顶山天安煤业股份有限公司 | Splitting grouting reinforcement support method for kilometer deep well soft rock |
| CN110454200A (en) * | 2019-09-06 | 2019-11-15 | 贵州桥梁建设集团有限责任公司 | A kind of double-walled grouting with small pipe device and its construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207131371U (en) | Coal mine gas drainage holes controllable capsule bag type hole-sealing device with pressure | |
| CN108868827A (en) | Km deep-well high-ground stress combination of steel rope injection hole sealing device and method for sealing | |
| CN103334770B (en) | One is grown up reverse-slope tunnel ultra high water pressure rich water zone of fracture construction method | |
| CN104453913B (en) | A kind of Shaft Stopes front pre-grouting method | |
| CN101845944B (en) | Method for sealing gas drainage boreholes at specified positions | |
| CN105952475B (en) | A kind of residual exploiting field inbreak abandoned working grouting and reinforcing technology of coal mine and method | |
| CN109882223A (en) | The method for carrying out segmenting slip casting using grouting cable anchor | |
| CN106014201B (en) | A kind of outer release hole safe construction technique of tunnel grouting curtain | |
| CN102635327B (en) | Grouting method and system of cracked coal rock mass | |
| CN102278130A (en) | Process method for reinforcing and grouting of high-pressure water-rich solution cavity of tunnel | |
| CN201310362Y (en) | Installing device of high pressure water burst drill hole bore pipe | |
| CN104763436A (en) | Method and device for receiving pipe jacking machine under condition of high water pressure complicated geological conditions | |
| CN103291354B (en) | Floor rock roadway layer-crossing pressure relief drilling filling and reinforcing method | |
| CN109798140A (en) | Km Deep Soft Rock fracture grouting support reinforcement method | |
| CN103362117A (en) | Full-section grouting method for grouting section | |
| CN102182468A (en) | Method and device for solidifying water-filling cracking surrounding rocks of tunnel by adopting high-pressure air water-dispelling grouting | |
| CN109763483A (en) | A kind of thick 4th is buried excavation collapse broken formation upstriker segmenting slip casting technique | |
| CN101793154A (en) | Method for grouting for stopping up water by using geological parameters of tunnel surrounding rocks and setting relief holes | |
| CN107575238A (en) | Shield-tunneling construction super close distance grouting method and grouting device | |
| CN112392524B (en) | Geotechnical engineering sectional type cavity slip casting anchor rope device | |
| CN207406345U (en) | Rich water sand-pebble layer shield tunnel end horizontal grouting ruggedized construction | |
| CN112127899B (en) | Method for consolidation grouting of conglomerate stratum tunnel arch ring | |
| CN204921007U (en) | Process systems is strutted in stock slip casting | |
| CN103174135A (en) | Repair method of unqualified post-grouting bored concrete pile | |
| CN204252139U (en) | Be applied to the two-layer equation film bagging apparatus of Grouting Pipe sealing in water burst sandy soils |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |
|
| RJ01 | Rejection of invention patent application after publication |