CN212359603U - Double-liquid grouting drill rod suitable for top hammer impact type drilling machine - Google Patents
Double-liquid grouting drill rod suitable for top hammer impact type drilling machine Download PDFInfo
- Publication number
- CN212359603U CN212359603U CN202021993459.3U CN202021993459U CN212359603U CN 212359603 U CN212359603 U CN 212359603U CN 202021993459 U CN202021993459 U CN 202021993459U CN 212359603 U CN212359603 U CN 212359603U
- Authority
- CN
- China
- Prior art keywords
- liquid
- rod
- drill
- way valve
- pipe
- 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
Images
Landscapes
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a biliquid slip casting drilling rod suitable for top hammer impulse type rig, including consecutive drill bit, one-way valve rod, switching cover, rock drilling rod and bore bit tail after to in the past, switching cover inner chamber is equipped with A liquid pipe, is B liquid route between A liquid pipe and the switching cover, is two liquid mixing area between A liquid pipe and the one-way valve rod, is equipped with first check valve in the one-way valve rod, and A liquid pipe is equipped with the second check valve. The utility model has the advantages that: the double-liquid grouting device is suitable for drilling and double-liquid grouting construction of complex geology such as pebble stratum, broken rock stratum and the like, is arranged on a top hammer impact type drilling machine driving device, and is suitable for horizontal punching, obliquely upward punching, vertically downward punching and grouting operation.
Description
Technical Field
The utility model relates to a drilling slip casting construction technical field, concretely relates to biliquid slip casting drilling rod suitable for top hammer impact drill.
Background
In the construction process of underground engineering, soft and broken complicated and unstable strata are frequently encountered, and a double-liquid grouting process is usually adopted to reinforce and improve the strata before construction.
The double-liquid grouting process is divided into two types, namely single-layer drill pipe (or grouting pipe) hole outside mixing and double-layer drill pipe hole bottom mixing. The outer mixed mode of individual layer drilling rod hole, it is higher to the control requirement of thick liquid setting time, and the drilling rod is torn open and is connect rapidly and does not have the delay, otherwise can take place thick liquid and agglutinate the stifled pole in the drilling rod, lead to the slip casting failure, the operation degree of difficulty is great. The double-layer drill rod grouting adopts a hole bottom mixing process, has good grouting effect and easy control, and is widely applied in actual construction.
Because the existing double-layer drill rod for double-liquid grouting is weak in hollow thin wall, particularly in threaded connection, and limited in drilling depth, the existing double-layer drill rod cannot be used for drilling machine construction with top hammer impact, and for complex geology such as pebble stratum, broken rock stratum and the like, the existing double-layer drill rod is easy to clamp and break, and drilling and subsequent grouting construction cannot be completed.
Disclosure of Invention
The utility model aims at providing a drilling and biliquid slip casting construction suitable for complicated geology such as cobble stratum, broken rock stratum, install on top hammer impacted style rig drive device, be fit for the level and punch, punch in the slant, punch perpendicularly downwards and the biliquid slip casting drilling rod of slip casting operation.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a biliquid slip casting drilling rod suitable for top hammer impact drill, includes drill bit, check valve rod, switching cover, rock drilling rod and bore bit tail that link to each other in proper order from the past to the back, and switching cover inner chamber is equipped with A liquid pipe, is B liquid route between A liquid pipe and the switching cover, is biliquid mixed area between A liquid pipe and the check valve rod, is equipped with first check valve in the check valve rod, and A liquid pipe is equipped with the second check valve.
Furthermore, the first one-way valve is a large spring arranged on the rear side of the inner cavity of the one-way valve rod and a large steel ball which is propped against the orifice at the tail end of the one-way valve rod by the large spring, and the large steel ball and the opening of the adapter sleeve form sealing.
Furthermore, the second one-way valve is a hollow plug arranged at the opening end of the liquid A guide pipe, a small spring and a small steel ball are connected with the rear side of the hollow plug, and the small steel ball is propped against the notch of the inner wall of the liquid A guide pipe by the small spring to form sealing.
Furthermore, a tripod supporting sheet is arranged on the outer side of the opening end of the liquid A conduit and is supported on the inner wall of the adapter sleeve.
Furthermore, coaxial inner pipes are respectively arranged in the rock drilling rod and the drill shank to serve as a liquid A conveying channel, a channel between the rock drilling rod and the inner pipe of the rock drilling rod and a channel between the drill shank and the inner pipe of the drill shank are liquid B conveying channels, and the drill shank injects liquid A and liquid B into the liquid A conveying channel and the liquid B conveying channel through two rotary joints.
Furthermore, the splicing part of the inner pipe of the rock drilling rod and the A liquid guide pipe and the splicing part of the outer pipe of the rock drilling rod and the adapter sleeve are distributed in a staggered manner; and the splicing parts of the inner pipe of the drill rod tail and the inner pipe of the rock drilling rod and the splicing parts of the outer pipe of the drill rod tail and the outer pipe of the rock drilling rod are distributed in a staggered manner.
Furthermore, the drill bit is made of a spherical tooth alloy material, and the one-way valve rod, the adapter sleeve, the rock drilling rod and the drill shank are made of drill rod materials.
Compared with the prior art, the utility model, have following advantage:
the utility model relates to a biliquid slip casting drilling rod suitable for top hammer impacted style rig is applicable to the drilling and the biliquid slip casting construction of complicated geology such as cobble stratum, broken rock stratum, installs on top hammer impacted style rig drive device, is fit for the level and punches, punches to one side, punches perpendicularly downwards and slip casting operation. The utility model adds a check valve in the liquid A guide pipe to prevent the liquid B from flowing back into the liquid A guide pipe to cause the liquid mixing and condensation and block the cavity of the liquid A guide pipe; a check valve is arranged in the main channel of the mixed liquid (in the check valve rod) and is used for preventing the mixed liquid from flowing backwards into the liquid B passage to cause the liquid to solidify and block the liquid B passage.
Drawings
Fig. 1 is a schematic view of the installation of the dual-fluid grouting drill rod on the top hammer impact drilling machine of the present invention.
Fig. 2 is a schematic view of the cross-sectional structure of the dual-fluid grouting drill rod of the present invention.
Fig. 3 is a schematic view of the cross-sectional structure of the middle check valve rod and the adapter sleeve assembly of the present invention.
Fig. 4 is a schematic cross-sectional structure diagram of the adapter sleeve assembly of the present invention.
Fig. 5 is a schematic sectional view of the drill shank of the present invention.
Fig. 6 is a schematic sectional view of the assembly of the drill shank and the rotary joint according to the present invention.
Fig. 7 is a schematic sectional view of the connection between the middle drill shank and the rock drill rod of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a double-fluid grouting drill rod suitable for a top hammer impact type drilling machine sequentially comprises a drill bit 1, a one-way valve rod 2, an adapter sleeve 3, a rock drilling drill rod 4 and a drill bit tail 5 from front to back; the drill bit 1 is made of a spherical tooth alloy material, the one-way valve rod 2, the adapter sleeve 3, the rock drilling rod 4 and the drill shank 5 are made of drill rod materials, the one-way valve rod 2 can bear impact and rotation generated by a top hammer impact type drilling machine, and the adapter sleeve 3 is of a hollow thick-wall structure and can bear impact and rotation of the top hammer impact type drilling machine.
As shown in fig. 1 and 2, the drill bit 1 is connected with a one-way valve rod 2, and the one-way valve rod 2 is connected with an adapter sleeve 3. The adapter sleeve 3 is connected with one or more rock drilling rods 4, the rock drilling rods 4 are connected with a drill bit tail 5, and the drill bit tail 5 is installed at the front part of a hydraulic rock drill of a top hammer impact type drilling machine and is used for transmitting impact power and rotation torque output by the drilling machine. The inner pipe I41 is arranged in the rock drilling rod 4, the inner pipe I41 is coaxial with the rock drilling rod 4, and the inner pipe I41 is supported on the inner wall of the rock drilling rod 4 through the three-leg supporting piece, so that the inner pipe I41 is prevented from axially shifting in the rock drilling rod 4, and the outer pipe and the inner pipe I41 of the rock drilling rod 4 are ensured to be simultaneously connected and disconnected in the connection and disassembly processes of the rock drilling rod 4; the inner pipe 41 can also be axially positioned and installed with the rock drilling rod 4 in other modes, such as threads, clamp springs or check rings. The drill bit shank 5 is internally provided with a second inner tube 51, the second inner tube 51 is coaxial with the drill bit shank 5, and the second inner tube 51 is supported on the inner wall of the drill bit shank 5 through a three-pin supporting sheet, so that the second inner tube 51 and the drill bit shank 5 are kept coaxial; the inner pipe 51 can also be axially positioned and installed with the drill shank 5 by other modes, such as threads, snap springs or check rings. One end of the first inner pipe 41 is in sealed insertion connection with the liquid A guide pipe 31 of the adapter sleeve 3, the other end of the first inner pipe 41 is in sealed insertion connection with the second inner pipe 51, sealing parts are arranged at the insertion connection positions of the two ends of the first inner pipe 41, the first inner pipe 41 and the second inner pipe 51 are both liquid A conveying channels, and liquid B conveying channels are arranged between the first inner pipe 41 and the outer pipe of the rock drilling rod 4 and between the second inner pipe 51 and the outer pipe of the drill shank 5. As shown in fig. 5 and 6, two rotary joints 6 are arranged at the tail end of the drill rod 5 and the hydraulic rock drill, and the two rotary joints 6 respectively inject liquid a and liquid B into the inner pipe two 51 of the drill rod 5 and the outer pipe of the drill rod 5.
Further, as shown in fig. 1 and 7, the front end of the inner tube two 51 of the drill bit 5 protrudes out of the outer tube of the drill bit 5 by a certain length, the inner tube two 51 is inserted into the inner tube one 41 connected to the rock drilling rod 4, and the front end of the inner tube two 51 protrudes out of the front end of the outer tube of the drill bit 5 by a length that the outer diameter of the joint of the inner tube two 51 and the inner tube one 41 is larger, so that the section with the larger outer diameter of the joint of the outer tube of the drill bit 5 and the outer tube of the rock drilling rod 4 is avoided from the section with the smaller inner diameter of the joint of the outer tube of the drill bit 5 and the outer tube of the rock. Similarly, the front end of the first inner tube 41 of the rock drilling rod 4 protrudes out of the outer tube of the rock drilling rod 4 by a certain length, the first inner tube 41 is inserted into the liquid A guide tube 31 connected into the adapter sleeve 3, and the front end of the first inner tube 41 protrudes out of the front end of the outer tube of the rock drilling rod 4 by a certain length so that the section with the larger outer diameter of the insertion part of the first inner tube 41 and the liquid A guide tube 31 avoids the section with the smaller inner diameter of the connection part of the outer tube of the rock drilling rod 4 and the adapter sleeve 3, so that the B liquid conveying channel is ensured to have a sufficient flow cross section under the condition that the.
As shown in fig. 3 and 4, the inner cavity of the adapter sleeve 3 is provided with a liquid a conduit 31, a liquid B passage is formed between the liquid a conduit 31 and the adapter sleeve 3, a double-liquid mixing area is formed between the liquid a conduit 31 and the check valve rod 2, a first check valve is arranged in the check valve rod 2, and a second check valve is arranged in the liquid a conduit 31. The first one-way valve is a large spring 21 arranged on the rear side of the inner cavity of the one-way valve rod 2 and a large steel ball 22 which is propped against the orifice at the tail end of the one-way valve rod 2 by the large spring 21, and the large steel ball 22 and the opening of the adapter sleeve 3 form sealing. The second one-way valve is a hollow plug 32 arranged at the opening end of the liquid A guide pipe 31, a small spring 33 and a small steel ball 34 connected with the rear side of the hollow plug 32, and the small steel ball 34 is propped against the notch of the inner wall of the liquid A guide pipe 31 by the small spring 33 to form sealing, so that the liquid A can flow from back to front and the liquid B can be prevented from flowing back into the liquid A guide pipe 31. The outer side of the opening end of the liquid A guide pipe 31 is provided with a tripod supporting sheet which is supported on the inner wall of the adapter sleeve 3, and the tripod supporting sheet can rotate or move left and right on the inner wall of the adapter sleeve 3 so as to adjust the position of the liquid A guide pipe 31.
The utility model relates to a construction method of biliquid slip casting drilling rod suitable for top hammer impact drill is as follows: the construction method is suitable for full-angle drilling and hole bottom mixed double-liquid grouting of strata such as hard rock broken zones, pebbles and the like, and drilling and grouting are integrated and completed at one time. The ball-tooth alloy drill bit, the hole bottom mixer (the one-way valve rod 2, the adapter sleeve 3, the first one-way valve, the A liquid guide pipe 31 and the second one-way valve), the rock drilling rod 4 and the drill bit tail 5 are all allowed to adopt a rock drilling machine to impact and rotate to drill holes, and the drill and the injection share the same drilling tool. After drilling is completed, the liquid A and the liquid B injected into the injection ports of the two rotary joints 6 are rotated, the injected liquid A and the injected liquid B are respectively injected into the liquid A conveying channel and the liquid B conveying channel, the liquid A pushes open the second one-way valve of the small steel ball 34, the liquid A enters the annular channel of the liquid B in the adapter sleeve 3 through the radial hole of the liquid A guide pipe 31, the two slurries of the liquid A and the liquid B start to contact and mix, the mixed slurry continues to push open the first one-way valve of the large steel ball 22 forward under the action of grouting pressure and enters the inner channel of the one-way valve rod 2, the two slurries are further fully mixed, and the two slurries are injected into the stratum through the inner hole of. According to the grouting construction process requirements, subsection retreating synchronous double-liquid grouting or subsection stepping synchronous double-liquid grouting can be carried out, and if the geological conditions and the construction working conditions are special, subsection stepping cross double-liquid drilling and grouting construction can also be adopted.
The grouting interruption time (disassembling the drill rod and resuming grouting) should be shorter than the slurry coagulation time, so as to avoid coagulation and blockage in the double-liquid mixing zone in the drill rod. If the grout blending initial setting time is short according to the construction process requirements, the drill pipe can not be smoothly disassembled and connected within the time, a small amount of non-condensable medium such as bentonite can be injected before the grouting is interrupted, the grout remained in the drill pipe is discharged out of the drill pipe, and the double-liquid grouting operation is recovered after the connecting rod is disassembled. Or before the drilling rod is disconnected and connected by grouting, the liquid A injection port is closed, the liquid B is kept continuously injected for five seconds, and then the liquid B injection port is closed, so that the mixed liquid in the adapter sleeve 3 and the one-way valve rod 2 can be washed out by the liquid B, and the mixed liquid is prevented from being coagulated and blocked in the drilling rod.
During grouting or after grouting operation is completed, the detached grouting drill rod (comprising the one-way valve rod 2, the adapter sleeve 3, the rock drilling drill rod 4, the drill shank 5 and all inner pipes) is washed clean, so that residual slurry is prevented from being condensed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a biliquid slip casting drilling rod suitable for top hammer impact drill, its characterized in that: the drilling bit, the one-way valve rod, the switching sleeve, the rock drilling rod and the drill bit tail are sequentially connected from the front to the back, an A liquid guide pipe is arranged in the inner cavity of the switching sleeve, a B liquid passage is formed between the A liquid guide pipe and the switching sleeve, a double-liquid mixing area is formed between the A liquid guide pipe and the one-way valve rod, a first one-way valve is arranged in the one-way valve rod, and a second one-way valve is arranged in the A liquid guide pipe.
2. The dual fluid grouting drill rod suitable for a top hammer impact drill according to claim 1, wherein: the first check valve is a large spring arranged on the rear side of the inner cavity of the check valve rod and a large steel ball which is propped against the orifice at the tail end of the check valve rod by the large spring, and the large steel ball and the opening of the adapter sleeve form sealing.
3. A dual fluid grouting drill rod suitable for a top hammer impact drill according to claim 1 or 2, characterised in that: the second one-way valve is a hollow plug arranged at the opening end of the liquid A guide pipe and a small spring and a small steel ball which are connected with the rear side of the hollow plug, and the small steel ball is propped against the notch of the inner wall of the liquid A guide pipe by the small spring to form sealing.
4. The dual fluid grouting drill rod suitable for a top hammer impact drill according to claim 1, wherein: the outer side of the opening end of the liquid A guide pipe is provided with a tripod supporting sheet which is supported on the inner wall of the adapter sleeve.
5. The dual fluid grouting drill rod suitable for a top hammer impact drill according to claim 1, wherein: the drill rod and the drill shank are respectively internally provided with coaxial inner tubes as a liquid A conveying channel, a passage between the drill rod and the inner tube and a passage between the drill shank and the inner tube are liquid B conveying channels, and the drill shank is respectively used for injecting liquid A and liquid B into the liquid A conveying channel and the liquid B conveying channel through two rotary joints.
6. The dual fluid grouting drill rod suitable for a top hammer impact drill according to claim 5, wherein: the insertion positions of the inner pipe of the rock drilling rod and the liquid A guide pipe and the insertion positions of the outer pipe of the rock drilling rod and the adapter sleeve are distributed in a staggered manner; and the splicing parts of the inner pipe of the drill rod tail and the inner pipe of the rock drilling rod and the splicing parts of the outer pipe of the drill rod tail and the outer pipe of the rock drilling rod are distributed in a staggered manner.
7. The dual fluid grouting drill rod suitable for a top hammer impact drill according to claim 1, wherein: the drill bit is made of a spherical tooth alloy material, and the one-way valve rod, the adapter sleeve, the rock drilling rod and the drill bit shank are made of drill rod materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021993459.3U CN212359603U (en) | 2020-09-14 | 2020-09-14 | Double-liquid grouting drill rod suitable for top hammer impact type drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021993459.3U CN212359603U (en) | 2020-09-14 | 2020-09-14 | Double-liquid grouting drill rod suitable for top hammer impact type drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359603U true CN212359603U (en) | 2021-01-15 |
Family
ID=74144149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021993459.3U Active CN212359603U (en) | 2020-09-14 | 2020-09-14 | Double-liquid grouting drill rod suitable for top hammer impact type drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359603U (en) |
-
2020
- 2020-09-14 CN CN202021993459.3U patent/CN212359603U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101251018B (en) | Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe | |
| CN101251019B (en) | Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe | |
| CN108547604A (en) | A kind of brill punching press integrated apparatus and method | |
| EP2914781B1 (en) | Soil grouting | |
| US20200208504A1 (en) | Long-distance drilling and hydrofracturing integrated device and method in underground mine | |
| US4974689A (en) | Drill hole filling method and apparatus | |
| WO2022233119A1 (en) | Self-drilling injection anchor pipe-based anchoring device for coal mine, and method | |
| CN201265353Y (en) | Full-hydraulic mining rescue drill rig | |
| CN104160105A (en) | Reverse circulation bit assembly | |
| CN108301769A (en) | A kind of RW types horizontal well construction method and its drilling tool used | |
| CN212359603U (en) | Double-liquid grouting drill rod suitable for top hammer impact type drilling machine | |
| CN208416512U (en) | A kind of brill punching press integrated apparatus | |
| JP3493014B2 (en) | Tunnel widening method | |
| CN112554839B (en) | Integral hose plug-in-free gas hole packer and hole sealing method thereof | |
| CN112610255B (en) | Tunnel construction method for penetrating through weak and broken surrounding rock | |
| CN111980575A (en) | Double-liquid grouting drill rod suitable for top hammer impact type drilling machine | |
| CN114909080A (en) | Pulse hydraulic impactor and drilling and filling integrated pulse grouting method thereof | |
| CN112096342B (en) | Drilling speed-up tool and method for shaft bottom pressure reduction and leakage stoppage | |
| CN207960500U (en) | A kind of earth's surface hydrofracturing control subsidence drilling equipment | |
| CN220353827U (en) | Drilling tool assembly for blind hole drilling | |
| CN220522472U (en) | Slurry power impact structure and reaming device with same | |
| CN206571455U (en) | Integrated window-opening side-drilling tool | |
| CN116971733B (en) | Probing and injecting integrated machine tool and process suitable for tunneling under complex geological conditions | |
| CN220353814U (en) | Drilling tool bit for blind hole drilling | |
| CN117662177B (en) | Pipe shed construction method based on dragging process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |