CN103924928B - The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof - Google Patents
The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof Download PDFInfo
- Publication number
- CN103924928B CN103924928B CN201410118553.7A CN201410118553A CN103924928B CN 103924928 B CN103924928 B CN 103924928B CN 201410118553 A CN201410118553 A CN 201410118553A CN 103924928 B CN103924928 B CN 103924928B
- Authority
- CN
- China
- Prior art keywords
- anchor cable
- drill body
- cavity
- cylinder
- loaded plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to fit structure and the construction method thereof of the bit Integrated and anchor cable of a kind of rotary jet grouting, belong to the drilling technology field of the soil layer of fixed buildings.This fit structure comprises drill body and the anchor cable loaded plate that inside has cavity, and drill body is provided with slurry injection nozzle, pilot jet and control valve, and drill body is stepped bit body, and on stepped bit body, cover is installed with push pedal.The method comprises: 1) push pedal, anchor cable loaded plate and drill body are assembled; 2) drill body creeps into; 3), after drill body creeps into precalculated position, open slurry injection nozzle and carry out rotary jet grouting, anchor cable loaded plate is fixed; 4) drill body is exited.The fit structure of the bit Integrated and anchor cable of this rotary jet grouting can follow up in the process of creeping in drilling type anchor cable construction multiple anchor cable supporting body thus improve single anchor rod bearing capacity simultaneously.
Description
Technical field
The present invention relates to a kind of drill bit and construction method thereof, belong to the drilling technology field of the soil layer of fixed buildings.
Background technology
In the foundation ditch of traffic, municipal administration, building, water power, mine engineering, side slope, tunnel and underground pipeline project are built, applicant pinpoints the problems as follows in drilling type anchor cable construction:
1) traditional drilling type anchor cable can only to follow up a loaded plate because of the restriction of drill bit, a loaded plate is provided with multiple anchor cable, such as: 6 anchor cables are located on a loaded plate, this loaded plate is stressed just very concentrated, and therefore the uplift resistance of whole anchor cable is difficult to improve;
2) intensity of anchor cable supporting body directly has influence on the uplift resistance of anchor cable, the volume ratio of the factor affecting anchor cable supporting body intensity mainly cement, cement mixing content more high strength is higher, but existing drilling type anchor cable construction, the ratio of the cement mixing content in supporting body is only increased by churning cutting, due to slurry injection nozzle and loaded plate position relatively far apart, make the construction consuming cost of the ratio of the cement mixing content increased in supporting body comparatively large and be difficult to realize;
3) destruction of general jet-grouted anchor pile, be supporting body and its periphery churning body (i.e. core body) between occur breaking, determine the size of intensity, the construction of common jet-grouted anchor pile is all use large pressure that the peripheral part cement mixing content of jet-grouted anchor pile is improved, the peripheral part intensity of such jet-grouted anchor pile is high, and core intensity is low on the contrary, so cause the pile body compressive strength of loaded plate front end low, pile body carried plate pressure break is destroyed, and the uplift resistance of jet-grouted anchor pile is on the low side.
Summary of the invention
First technical problem that the present invention will solve is, not enough for prior art, propose can to follow up in the process of creeping in drilling type anchor cable construction multiple anchor cable supporting body thus change fit structure and the construction method thereof of the bit Integrated and anchor cable of the stressed rotary jet grouting of single anchor rod simultaneously.
Second technical problem that the present invention will solve is, on solution first technical problem basis, proposes the fit structure of the bit Integrated and anchor cable of a kind of rotary jet grouting fixed fast by multiple anchor cable supporting body.
The 3rd technical problem that the present invention will solve is solving the problems of the technologies described above on basis, proposes the fit structure of the bit Integrated and anchor cable of a kind of rotary jet grouting fixedly secured by multiple anchor cable supporting body.
The present invention solves one of technical scheme that above-mentioned first technical problem propose to be: the fit structure of the bit Integrated and anchor cable of a kind of rotary jet grouting, comprise drill body and anchor cable loaded plate that inside has cavity, the sidewall of described drill body is provided with the slurry injection nozzle and pilot jet that are connected with described cavity, described slurry injection nozzle and pilot jet are all connected with control valve, described drill body is stepped bit body, described stepped bit body becomes large cylinder successively by least two sections of diameters from the head of drill body to shank and forms, on every section of cylinder, cover is installed with push pedal, when described drill body creeps into, each push pedal is close on the shaft shoulder face, location between a side of an anchor cable loaded plate and every section of cylinder and adjacent segment cylinder, and when described drill body exits, described anchor cable loaded plate and drill body and push pedal are separated.
The present invention due to drill body be stepped bit body, stepped bit body becomes large cylinder successively by least two sections of diameters from the head of drill body to shank and forms, on every section of cylinder cover be installed with push pedal; When drill body creeps into, each push pedal is close on the shaft shoulder face, location between a side of an anchor cable loaded plate and every section of cylinder and adjacent segment cylinder, and when drill body exits, anchor cable loaded plate and drill body and push pedal are separated, and bring thus:
In drilling type anchor cable construction, every section of cylinder will wear a push pedal and anchor cable loaded plate, each push pedal is close on the shaft shoulder face, location between a side of an anchor cable loaded plate and every section of cylinder and adjacent segment cylinder, each anchor cable loaded plate is fixed with several anchor cables respectively, like this by the fixing anchor cable of single anchor cable loaded plate, be divided into anchor cable fixing respectively on multiple anchor cable loaded plate, greatly improve the bearing capacity of single anchor rod, when drill body creeps into, push pedal is pushed ahead by the shaft shoulder face, location between every section of cylinder and adjacent segment cylinder by drill body, anchor cable loaded plate is pushed ahead by push pedal again, like this, can be followed up in the process that drill body creeps into multiple loaded plate simultaneously, when drill body exits, anchor cable loaded plate and drill body and push pedal are separated, complete churning anchor cable that stressed to be transformed into multiple anchor cable loaded plate decentralized stressed by single anchor cable loaded plate, achieve single anchor rod from pressure concentrated to the transformation of dispersed pressure anchor, thus greatly improve the uplift resistance of anchor cable.
The present invention solves two of the technical scheme that above-mentioned first technical problem proposes to be: the construction method of the fit structure of the bit Integrated and anchor cable of a kind of rotary jet grouting, adopt the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 1, comprise the following steps:
1) push pedal, anchor cable loaded plate and drill body are assembled: every section of cylinder wears a push pedal and anchor cable loaded plate, each push pedal is close on the shaft shoulder face, location between a side of an anchor cable loaded plate and every section of cylinder and adjacent segment cylinder, and each anchor cable loaded plate is all fixed with anchor cable;
2) drill body creeps into: close slurry injection nozzle by control valve, open pilot jet, hole, when drill body creeps into, push pedal is pushed ahead by the shaft shoulder face, location between every section of cylinder and adjacent segment cylinder by drill body, and anchor cable loaded plate is pushed ahead by push pedal again;
3) after drill body creeps into precalculated position, close pilot jet by control valve, open slurry injection nozzle and carry out rotary jet grouting, anchor cable loaded plate is fixed;
4) exit drill body, anchor cable loaded plate and drill body and push pedal are separated.
The present invention, for solving above-mentioned second technical problem, to the improvement of technique scheme is: every section of cylinder is provided with a slurry injection nozzle, the anchor cable loaded plate place that the slurry injection nozzle on every section of cylinder wears near every section of cylinder.
After drill body creeps into precalculated position, pilot jet is closed by control valve, open slurry injection nozzle and carry out rotary jet grouting, because every section of cylinder is provided with a slurry injection nozzle, the anchor cable loaded plate place that slurry injection nozzle on every section of cylinder wears near every section of cylinder, quick and precisely slip casting can be carried out to an anchor cable loaded plate separately by each slurry injection nozzle to fix, bring the cement mixing content of anchor cable loaded plate obviously to promote like this, thus impel anchor cable loaded plate intensity to improve and then improve the uplift resistance of anchor cable.
The present invention, for solving above-mentioned 3rd technical problem, to the improvement of technique scheme is: described slurry injection nozzle is low-pressure grouting nozzle.
Because slurry injection nozzle is low-pressure grouting nozzle, like this, when separately an anchor cable loaded plate being carried out that quick and precisely slip casting is fixed by each slurry injection nozzle, the core cement mixing content of anchor cable loaded plate is high, the peripheral part cement mixing content of anchor cable loaded plate is low, can improve churning body core intensity like this, determines that the key of rotary churning pile intensity is the intensity of core, like this, the uplift resistance of supporting body can be improved.
One of change of technique scheme is: the head of described drill body is made as apex point, and described pilot jet is high pressure nozzle, and described pilot jet is near the head of described drill body.
Because pilot jet is high pressure nozzle, drill body can carry out cutting by high pressure nozzle to soil layer and creep into, like this, less demanding to the head of drill body, is conducive to protecting drill bit, extends the working time of drill bit, improves the operating efficiency of drill bit.
Two of the change of technique scheme is: described pilot jet is located at vertical described drill body axially.
Three of the change of technique scheme is: described cavity is the stepped cavity be stacked to constitute up and down by the first cavity of the head being positioned at described drill body and the second cavity of shank of being positioned at described drill body, the diameter of described first cavity is less than the diameter of the second cavity, described pilot jet is connected with the first cavity, described slurry injection nozzle is connected with the second cavity, described control valve comprises the steel ball that can throw in and to be located in the second cavity and the valve seat that can slide in the second cavity, described valve seat is equipped with liquid pass hole vertically, each slurry injection nozzle place correspondence is provided with a valve seat, two adjacent valve seats are connected to each other, liquid pass hole diameter near the valve seat at the first cavity place is less than the liquid pass hole diameter of the valve seat away from the first cavity place, the shutoff that described steel ball can be thrown in is on the liquid pass hole of the valve seat near the first cavity place, spring is provided with near the bottom of the valve seat at the first cavity place.
The one of perfect of technique scheme is: the apex point of the head of described drill body is conical.
Perfect two of technique scheme is: the apex point of the head of described drill body is spheroidal.
The change of technique scheme two is: 5) in above-mentioned steps 1, and every section of cylinder is provided with a slurry injection nozzle, and described slurry injection nozzle is low-pressure grouting nozzle, the anchor cable loaded plate place that the slurry injection nozzle on every section of cylinder wears near every section of cylinder; The head of drill body is made as apex point, and described pilot jet is high pressure nozzle, and described pilot jet is near the head of described drill body, and described pilot jet is located at vertical described drill body axially;
6), in above-mentioned steps 2, drill body carries out soil layer cutting by pilot jet ejection high-pressure fluid and creeps into.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of the fit structure of the bit Integrated and anchor cable of embodiment of the present invention rotary jet grouting.
Fig. 2 is the structural representation of the drill body of Fig. 1.
Fig. 3 is that the drill body of Fig. 1 exits Construction State figure.
Fig. 4 is the structural representation of the control valve of Fig. 1.
Fig. 5 is the A-A structural representation of Fig. 3.
Fig. 6 is the B-B structural representation of Fig. 3.
Fig. 7 is the C-C structural representation of Fig. 3.
Fig. 8 is the A1-A1 structural representation of Fig. 3.
Fig. 9 is the B1-B1 structural representation of Fig. 3.
Figure 10 is the C1-C1 structural representation of Fig. 3.
Detailed description of the invention
The fit structure of the bit Integrated and anchor cable of the rotary jet grouting of the present embodiment, as shown in Figures 1 to 4, comprises drill body 2 and anchor cable loaded plate 7 that inside has cavity 1.The sidewall of drill body 2 is provided with the slurry injection nozzle 3 and pilot jet 4 that are connected with cavity 1, and slurry injection nozzle 3 and pilot jet 4 are all connected with control valve 5.
Drill body 2 is stepped bit bodies.Stepped bit body becomes large cylinder successively by least two sections of diameters from the head of drill body to shank and forms.On every section of cylinder, cover is installed with push pedal 6.
When drill body 2 creeps into, each push pedal 6 is close on the shaft shoulder face, location between a side of an anchor cable loaded plate 7 and every section of cylinder and adjacent segment cylinder, and when drill body 2 exits, anchor cable loaded plate 7 is separated with drill body 2 and push pedal 6.
As shown in Figures 5 to 7, push pedal 6 can adopt circular gasket, and the internal diameter that the push pedal 6 worn on the cylinder of the head of drill body matches with drill body is little, and the internal diameter that the push pedal 6 near the shank of drill body matches with drill body is large.As shown in Fig. 8 to Figure 10, the anchor cable loaded plate 7 be close to the push pedal 6 that every section of cylinder wears only fixes 2 anchor cables, like this, compared with fixing 6 anchor cables with original single anchor cable loaded plate, disperses stressed.Anchor cable comprises ground tackle 8 and presstressed reinforcing steel 9, presstressed reinforcing steel such as steel strand etc.
Every section of cylinder of the present embodiment is provided with a slurry injection nozzle 3, anchor cable loaded plate 7 place that the slurry injection nozzle 3 on every section of cylinder wears near every section of cylinder.
The slurry injection nozzle 3 of the present embodiment is low-pressure grouting nozzle.
The head of the drill body 2 of the present embodiment is made as apex point, and pilot jet 4 is high pressure nozzles, and pilot jet 4 is near the head of drill body 2.
The pilot jet 4 of the present embodiment is located at vertical drill body 2 axially.
The apex point of the head of the drill body 2 of the present embodiment is conical.The apex point of the head of the drill body 2 of certain the present embodiment is spheroidal, or other shape, etc.
The cavity 1 of the present embodiment is the stepped cavity be stacked to constitute up and down with the second cavity 1-2 of the shank being positioned at drill body by the first cavity 1-1 of the head being positioned at described drill body.The diameter of the first cavity 1-1 is less than the diameter of the second cavity 1-2.Pilot jet 4 is connected with the first cavity 1-1, and slurry injection nozzle 3 is connected with the second cavity 1-2.
Control valve 5 comprises the steel ball 5-1 that can throw in and to be located in the second cavity 1-2 and the valve seat 5-2 that can slide in the second cavity.Valve seat 5-2 is equipped with liquid pass hole 5-3 vertically.Each slurry injection nozzle 3 place correspondence is provided with a valve seat 5-2, and two adjacent valve seat 5-2 are connected to each other, and the liquid pass hole diameter near the valve seat 5-2 at the first cavity 1-1 place is less than the liquid pass hole diameter of the valve seat 5-2 away from the first cavity 1-1 place.
The shutoff that steel ball 5-1 can throw in, on the liquid pass hole of the valve seat 5-2 near the first cavity 1-1 place, is provided with spring 5-4 near the bottom of the valve seat 5-2 at the first cavity 1-1 place.
The construction method of the fit structure of the bit Integrated and anchor cable of the rotary jet grouting of the present embodiment, comprises the following steps:
1) push pedal 6, anchor cable loaded plate 7 and drill body 2 are assembled: every section of cylinder wears a push pedal 6 and anchor cable loaded plate 7, each push pedal 6 is close on the shaft shoulder face, location between a side of an anchor cable loaded plate 7 and every section of cylinder and adjacent segment cylinder, and each anchor cable loaded plate 7 is all fixed with anchor cable;
2) drill body 2 creeps into: close slurry injection nozzle 3 by control valve 5, open pilot jet 4, hole, when drill body 2 creeps into, push pedal 6 is pushed ahead by the shaft shoulder face, location between every section of cylinder and adjacent segment cylinder by drill body, and anchor cable loaded plate 7 is pushed ahead by push pedal 6 again;
3) after drill body 2 creeps into precalculated position, close pilot jet 4 by control valve 5, open slurry injection nozzle 3 and carry out rotary jet grouting, anchor cable loaded plate 7 is fixed;
4) exit drill body 2, anchor cable loaded plate 7 is separated with drill body 2 and push pedal 6.
The construction method of the fit structure of the bit Integrated and anchor cable of the rotary jet grouting of the present embodiment: 5) in above-mentioned steps 1, every section of cylinder is provided with a slurry injection nozzle 3, slurry injection nozzle 3 is low-pressure grouting nozzles, anchor cable loaded plate 7 place that the slurry injection nozzle 3 on every section of cylinder wears near every section of cylinder; The head of drill body 2 is made as apex point, and pilot jet 4 is high pressure nozzles, and pilot jet 4 is near the head of drill body 2, and pilot jet 4 is located at vertical drill body 2 axially;
6) in above-mentioned steps 2, drill body 2 by pilot jet 4 spray high-pressure fluid carry out soil layer cutting creep into.
The present invention is not limited to above-described embodiment.All employings are equal to the technical scheme of replacing and being formed, and all drop on the protection domain of application claims.
Claims (10)
1. the fit structure of the bit Integrated and anchor cable of a rotary jet grouting, comprise drill body and anchor cable loaded plate that inside has cavity, the sidewall of described drill body is provided with the slurry injection nozzle and pilot jet that are connected with described cavity, described slurry injection nozzle and pilot jet are all connected with control valve, it is characterized in that: described drill body is stepped bit body, described stepped bit body becomes large cylinder successively by least two sections of diameters from the head of drill body to shank and forms, and on every section of cylinder, cover is installed with push pedal; When described drill body creeps into, each push pedal is close on the shaft shoulder face, location between a side of an anchor cable loaded plate and every section of cylinder and adjacent segment cylinder, and when described drill body exits, described anchor cable loaded plate and drill body and push pedal are separated.
2. the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 1, is characterized in that: every section of cylinder is provided with a slurry injection nozzle, the anchor cable loaded plate place that the slurry injection nozzle on every section of cylinder wears near every section of cylinder.
3. the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 2, is characterized in that: described slurry injection nozzle is low-pressure grouting nozzle.
4. the fit structure of the bit Integrated and anchor cable of the rotary jet grouting as described in claim 1,2 or 3, it is characterized in that: the head of described drill body is made as apex point, described pilot jet is high pressure nozzle, and described pilot jet is near the head of described drill body.
5. the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 4, is characterized in that: described pilot jet is located at vertical described drill body axially.
6. the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 5, is characterized in that: the apex point of the head of described drill body is conical.
7. the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 5, is characterized in that: the apex point of the head of described drill body is spheroidal.
8. the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 4, it is characterized in that: described cavity is the stepped cavity be stacked to constitute up and down with the second cavity of the shank being positioned at described drill body by the first cavity of the head being positioned at described drill body, the diameter of described first cavity is less than the diameter of the second cavity, described pilot jet is connected with the first cavity, described slurry injection nozzle is connected with the second cavity, described control valve comprises the steel ball that can throw in and to be located in the second cavity and the valve seat that can slide in the second cavity, described valve seat is equipped with liquid pass hole vertically, each slurry injection nozzle place correspondence is provided with a valve seat, two adjacent valve seats are connected to each other, liquid pass hole diameter near the valve seat at the first cavity place is less than the liquid pass hole diameter of the valve seat away from the first cavity place, the shutoff that described steel ball can be thrown in is on the liquid pass hole of the valve seat near the first cavity place, spring is provided with near the bottom of the valve seat at the first cavity place.
9. a construction method for the fit structure of the bit Integrated and anchor cable of rotary jet grouting, adopts the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 1, it is characterized in that comprising the following steps:
1) push pedal, anchor cable loaded plate and drill body are assembled: every section of cylinder wears a push pedal and anchor cable loaded plate, each push pedal is close on the shaft shoulder face, location between a side of an anchor cable loaded plate and every section of cylinder and adjacent segment cylinder, and each anchor cable loaded plate is all fixed with anchor cable;
2) drill body creeps into: close slurry injection nozzle by control valve, open pilot jet, hole, when drill body creeps into, push pedal is pushed ahead by the shaft shoulder face, location between every section of cylinder and adjacent segment cylinder by drill body, and anchor cable loaded plate is pushed ahead by push pedal again;
3) after drill body creeps into precalculated position, close pilot jet by control valve, open slurry injection nozzle and carry out rotary jet grouting, anchor cable loaded plate is fixed;
4) exit drill body, anchor cable loaded plate and drill body and push pedal are separated.
10. the construction method of the fit structure of the bit Integrated and anchor cable of rotary jet grouting as claimed in claim 9, is characterized in that:
5) in above-mentioned steps 1, every section of cylinder is provided with a slurry injection nozzle, and described slurry injection nozzle is low-pressure grouting nozzle, the anchor cable loaded plate place that the slurry injection nozzle on every section of cylinder wears near every section of cylinder; The head of drill body is made as apex point, and described pilot jet is high pressure nozzle, and described pilot jet is near the head of described drill body, and described pilot jet is located at vertical described drill body axially;
6), in above-mentioned steps 2, drill body carries out soil layer cutting by pilot jet ejection high-pressure fluid and creeps into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118553.7A CN103924928B (en) | 2014-03-27 | 2014-03-27 | The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118553.7A CN103924928B (en) | 2014-03-27 | 2014-03-27 | The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924928A CN103924928A (en) | 2014-07-16 |
| CN103924928B true CN103924928B (en) | 2016-02-03 |
Family
ID=51143294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118553.7A Active CN103924928B (en) | 2014-03-27 | 2014-03-27 | The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103924928B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314076B (en) * | 2014-10-13 | 2016-03-30 | 安徽湖滨建设集团有限公司 | A kind of soft foundation recoverable prestressed anchor Cable Structure and construction method |
| CN113699987A (en) * | 2021-09-17 | 2021-11-26 | 中建八局天津建设工程有限公司 | Combined construction method for construction process of jet grouting anchor cable |
| CN116044312B (en) * | 2023-04-03 | 2023-06-23 | 湖南大学 | Curve high-pressure jet grouting drill bit capable of monitoring grouting pressure in real time |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652998Y (en) * | 2003-10-16 | 2004-11-03 | 崔江余 | Bundled steel twisted wire anchor with rotary spray drill bit |
| CN201099859Y (en) * | 2007-10-16 | 2008-08-13 | 中国京冶工程技术有限公司 | Multi-segment pocket type squeezing -type anchor rod |
| CN101824962A (en) * | 2010-05-11 | 2010-09-08 | 李宪奎 | Jet mixing drilling tool and method with the same for soil mass supporting construction |
| CN201850548U (en) * | 2010-11-05 | 2011-06-01 | 湖南长大建设集团股份有限公司 | High-pressure rotary spraying pile driver |
| CN203856403U (en) * | 2014-03-27 | 2014-10-01 | 苏州市能工基础工程有限责任公司 | Matched structure of rotary jet grouting integrated drill and anchor cables |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63206517A (en) * | 1987-02-24 | 1988-08-25 | Taisei Corp | Setting of anchor |
-
2014
- 2014-03-27 CN CN201410118553.7A patent/CN103924928B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652998Y (en) * | 2003-10-16 | 2004-11-03 | 崔江余 | Bundled steel twisted wire anchor with rotary spray drill bit |
| CN201099859Y (en) * | 2007-10-16 | 2008-08-13 | 中国京冶工程技术有限公司 | Multi-segment pocket type squeezing -type anchor rod |
| CN101824962A (en) * | 2010-05-11 | 2010-09-08 | 李宪奎 | Jet mixing drilling tool and method with the same for soil mass supporting construction |
| CN201850548U (en) * | 2010-11-05 | 2011-06-01 | 湖南长大建设集团股份有限公司 | High-pressure rotary spraying pile driver |
| CN203856403U (en) * | 2014-03-27 | 2014-10-01 | 苏州市能工基础工程有限责任公司 | Matched structure of rotary jet grouting integrated drill and anchor cables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103924928A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101586441B (en) | High-pressure water jet system and method for drilling and enlarging holes on coal bed | |
| CN104373145A (en) | Anchor device with functions of embedding, constant-resistance classifying, shear resisting and large deforming and method | |
| CN103195468A (en) | System process for conducting efficient strengthened extraction in surrounding rock | |
| CN102493821A (en) | Support method for high stress roadway coal-rock mass | |
| CN107246273A (en) | Deep tunnel wire rope net rubber concrete spraying support structure and its construction method | |
| CN104763343A (en) | Embedded bionic nozzle type multi-stage hole expanding drilling tool and hole expanding method thereof | |
| CN104074529A (en) | A continuous double-shell reinforcement method for deep roadways and chambers | |
| CN102678049A (en) | Circular cutting drill bit, rotary drilling machine and rock drilling method adopting static blasting | |
| CN103924928B (en) | The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof | |
| CN102996074B (en) | A kind of boring expands combined drill | |
| CN203701981U (en) | Reamer bit | |
| CN102996075B (en) | A kind of boring expands way-type drilling unit | |
| CN201218087Y (en) | Hydropower sand jet perforator | |
| CN112031738A (en) | Construction method of vertical shaft slag sliding well raise boring machine with diameter of 4-6 m | |
| CN202227989U (en) | Combined drilling tool | |
| CN207261019U (en) | Deep Soft Rock Tunnel double-layer rubber gunite concrete sprinkler body supporting construction | |
| CN203856403U (en) | Matched structure of rotary jet grouting integrated drill and anchor cables | |
| CN104763342A (en) | Multistage reamer for non-excavation pipeline laying and pull-back reaming assembly | |
| CN111364532B (en) | Existing pile foundation reinforcement method based on slurry control | |
| CN105421340A (en) | Tubular pile with unfolding blades and construction method of tubular pile | |
| CN104763348A (en) | Embedded bionic nozzle type drilling and expanding integral drilling tool and drilling and hole expandin method thereof | |
| CN104074183A (en) | Drilling and concrete injected root composite pile implanting pile structure and construction method | |
| CN204782797U (en) | Multiinjector drill bit | |
| CN204476294U (en) | The brill of the bionical nozzle of a kind of build-in expands integral type drilling tool | |
| CN202194127U (en) | Reducing high-pressure jet grouting rigid pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |