CN101608449A - The jet drill rig and the job practices of large-head anchor rod and enforcement large-head anchor rod - Google Patents
The jet drill rig and the job practices of large-head anchor rod and enforcement large-head anchor rod Download PDFInfo
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- CN101608449A CN101608449A CNA2009100887372A CN200910088737A CN101608449A CN 101608449 A CN101608449 A CN 101608449A CN A2009100887372 A CNA2009100887372 A CN A2009100887372A CN 200910088737 A CN200910088737 A CN 200910088737A CN 101608449 A CN101608449 A CN 101608449A
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Abstract
Large-head anchor rod comprises the body of rod, is provided with reinforcing pull rod in the body of rod vertically, and the front end of the body of rod is provided with columniform boss, and round platform big by front end, that the rear end is little links to each other between boss and the body of rod, and the coning angle of round platform is 34 °-150 °, and reinforcing pull rod pierces into boss vertically.Implement the jet drill rig of large-head anchor rod, comprise drilling rod, the bottom of drilling rod is provided with more than one round platform nozzle around drilling rod, and the angle between the axis of each round platform nozzle and the axis of described drilling rod is 17 °-75 °.Implement the job practices of large-head anchor rod, the angle that it comprises between the axis of adjusting injection direction that each the round platform nozzle on the drilling rod is installed and drilling rod makes the angle between the axis of its bus that equals second round platform and drilling rod.Its purpose is to provide a kind of anchor pole bearing capacity height, and cost is low, can be under multiple geological conditions construction operation large-head anchor rod and implement the jet drill rig and the job practices of large-head anchor rod.
Description
Technical field
The present invention relates to anchor pole and special-purpose rig and job practices that a kind of foundation pit supporting project is used.
Background technology
In side slope, foundation ditch, tunnel, underground utilities and the anti-floating engineering in industries such as traffic, building, municipal administration, water power, mine construction, various types of soil bolt technology are widely used.Up to now, the anchoring body of most Engineering anchor rods is cylindrical and diameter is less, depend primarily on anchorage length in the raising of determining anchor pole bearing capacity under the formation condition, the raising of the anti-pulling capacity of soil bolt is restricted, the uplift resistance of existing soil bolt has only the 20-70T/ root usually, does not satisfy the design of deep foundation pit needs far away.
Summary of the invention
The object of the present invention is to provide a kind of anchor pole bearing capacity height, cost is low, can be under multiple geological conditions construction operation large-head anchor rod and implement the jet drill rig and the job practices of large-head anchor rod.
Large-head anchor rod of the present invention comprises the body of rod, is provided with reinforcing pull rod in the body of rod vertically, the front end of the described body of rod is provided with columniform boss, round platform big by front end, that the rear end is little links to each other between boss and the body of rod, and the coning angle of round platform is 34 °-150 °, and described reinforcing pull rod pierces into boss vertically.
Large-head anchor rod of the present invention, the front end of wherein said boss links to each other with the small end of second round platform, and the big end of second round platform links to each other with the big end of columniform second boss, and the coning angle of second round platform is 34 °-150 °, and described reinforcing pull rod pierces into second boss vertically.
Large-head anchor rod of the present invention, the front end of wherein said second boss links to each other with the small end of the 3rd round platform, the big end of the 3rd round platform links to each other with the big end of columniform the 3rd boss, and the coning angle of the 3rd round platform is 34 °-150 °, and described reinforcing pull rod pierces into the 3rd boss vertically.
Large-head anchor rod of the present invention, the coning angle of wherein said round platform are 60 °-120 °, and the coning angle of described second round platform is 60 °-120 °, and the coning angle of described the 3rd round platform is 60 °-120 °.
Large-head anchor rod of the present invention, the coning angle of wherein said round platform are 80 °-90 °, and the coning angle of described second round platform is 80 °-90 °, and the coning angle of described the 3rd round platform is 80 °-90 °.
Implement the jet drill rig of large-head anchor rod of the present invention, comprise drilling rod, the bottom of described drilling rod is provided with more than one round platform nozzle around drilling rod, and the angle between the injection direction of each round platform nozzle and the axis of described drilling rod is 17 °-75 °.
The jet drill rig of large-head anchor rod of the present invention, the bottom of wherein said drilling rod is provided with 2-4 round platform nozzle around drilling rod, and the angle between the axis of each round platform nozzle and the axis of described drilling rod is 30 °-60 °.
The jet drill rig of large-head anchor rod of the present invention, wherein the angle between the axis of the axis of each described round platform nozzle and described drilling rod is 40 °-50 °.
Implement the job practices of large-head anchor rod of the present invention, it may further comprise the steps:
A) adopt large-head anchor rod jet drill rig of the present invention, size according to the coning angle of the round platform of the large-head anchor rod of designing requirement, angle between the axis of the axis of each the described round platform nozzle on the described drilling rod of described jet drill rig and drilling rod adjust to be installed, to be made the angle between the axis of its bus that equals round platform and drilling rod;
B) according to the design attitude of anchor hole, adopt described large-head anchor rod jet drill rig to carry out the drilling and forming hole operation, reach the designing requirement of anchor hole until drilling depth;
C) after the anchor hole of described rod boring reaches projected depth, promote drilling rod on one side, each nozzle by the drilling rod bottom utilizes cement paste that hole wall is carried out churning or multiple spray on one side, by the adjustment to pressure and/or drilling rod hoisting velocity, forms round platform and the boss that adheres to specification by churning;
D) finish churning or spray operation again by designing requirement after, stop churning or multiple spray, the drilling rod of moving away inserts reinforcing pull rod again in anchor hole, form large-head anchor rod.
Implement the job practices of large-head anchor rod of the present invention, it may further comprise the steps:
A) adopt the described large-head anchor rod jet drill rig of claim 6, size according to the coning angle of second round platform on the large-head anchor rod of designing requirement, angle between the axis of the injection direction of each the described round platform nozzle on the described drilling rod on the described jet drill rig and drilling rod adjust to be installed, to be made the angle between the axis of its bus that equals described second round platform and drilling rod;
B) according to the design attitude of anchor hole, adopt described large-head anchor rod jet drill rig to carry out the drilling and forming hole operation, reach the designing requirement of anchor hole until drilling depth;
C) after the anchor hole of described rod boring reaches projected depth, promote drilling rod on one side, pass through each described round platform nozzle of drilling rod bottom on one side, utilize cement paste that hole wall is carried out churning, by adjustment, form boss, second round platform and second boss that adheres to specification by churning to pressure and/or drilling rod hoisting velocity;
D) if the coning angle of the coning angle of the round platform of the large-head anchor rod of design and second round platform is unequal, drilling rod is lifted out anchor hole, size according to the coning angle of the round platform of the large-head anchor rod of designing requirement, angle between the axis of each the described round platform nozzle on the drilling rod of the described jet drill rig of adjustment installation and the axis of drilling rod, make the angle between the axis of its bus that equals round platform and drilling rod, and then drilling rod inserted in the anchor hole to the round platform position, if the coning angle of the round platform of the large-head anchor rod of design equates with the coning angle of second round platform, then directly carry out next procedure;
E) after round platform front position in the described drilling rod arrival anchor hole, promote drilling rod on one side, pass through each described round platform nozzle of drilling rod bottom on one side, utilize cement paste that hole wall is carried out churning or multiple spray, by adjustment, form the round platform that adheres to specification by churning or multiple spray to pressure and/or drilling rod hoisting velocity;
F) finish churning or spray operation again by designing requirement after, stop churning or multiple spray, the drilling rod of moving away inserts reinforcing pull rod again in anchor hole, form large-head anchor rod.
Large-head anchor rod of the present invention, it adopts unique design, allow the front end of the body of rod be provided with columniform boss, big between the boss and the body of rod by front end, the little round platform in rear end links to each other, the coning angle of round platform is 34 °-150 °, such structure is done the time spent being subjected to pulling capacity, its round table surface can be with the cement-soil induration of soil bolt and the frictional resistance of peripheral soil layer, change the shearing force of soil layer itself into, make the uplift resistance of large-head anchor rod of the present invention thus under the condition of identical geological conditions and rock-bolt length, uplift resistance than existing cylindrical anchor pole exceeds 3-10 doubly, the uplift resistance that is large-head anchor rod of the present invention can reach the 60-700T/ root, can utilize less material and short anchor pole to better meet designing requirement thus, and therefore reduce the consumption of material, shorten construction period and construction cost.
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
Description of drawings
Fig. 1 is the front view of the structural representation of a kind of embodiment of large-head anchor rod of the present invention;
Fig. 2 is the front view of the structural representation of another embodiment of large-head anchor rod of the present invention;
Fig. 3 is the front view of the structural representation of also a kind of embodiment of large-head anchor rod of the present invention;
Fig. 4 is the main pseudosection of the structural representation of the drilling rod part of the jet drill rig of enforcement large-head anchor rod of the present invention.
The specific embodiment
As shown in Figure 1, large-head anchor rod of the present invention, comprise the body of rod 1, be provided with reinforcing pull rod 2 in the body of rod 1 vertically, the front end of the body of rod 1 is provided with columniform boss 3, and round platform 4 big by front end, that the rear end is little links to each other between boss 3 and the body of rod 1, and the coning angle of round platform 4 is 90 °, perhaps be other angle values between 34 °-150 °, reinforcing pull rod 2 pierces into boss 3 vertically.
The coning angle of above-mentioned round platform 4 also can be 60 ° or 120 °.
As shown in Figure 2, large-head anchor rod of the present invention, also can be to comprise body of rod 1a, be provided with reinforcing pull rod 2a in the body of rod 1a vertically, the front end of body of rod 1a is provided with columniform boss 3a, big between boss 3a and the body of rod 1a by front end, the little round platform 4a in rear end links to each other, the coning angle of round platform 4a is 90 °, perhaps be other angle values between 34 °-150 °, reinforcing pull rod 2a pierces into boss 3a vertically, and the front end of boss 3a links to each other with the small end of the second round platform 5a, the big end of the second round platform 5a links to each other with the columniform second boss 6a, the coning angle of the second round platform 6a is 90 °, perhaps is other angle values between 34 °-150 °, and reinforcing pull rod 2a pierces into the second boss 6a vertically.
The coning angle of above-mentioned round platform 4a also can be 60 ° or 120 °, and the coning angle of the second round platform 6a also can be 60 ° or 120 °.
As shown in Figure 3, large-head anchor rod of the present invention, also can be to comprise body of rod 1b, be provided with reinforcing pull rod 2b in the body of rod 1b vertically, the front end of body of rod 1b is provided with columniform boss 3b, big between boss 3b and the body of rod 1b by front end, the little round platform 4b in rear end links to each other, the coning angle of round platform 4b is 45 °, perhaps be other angle values between 34 °-150 °, reinforcing pull rod 2b pierces into boss 3b vertically, the front end of boss 3b links to each other with the small end of the second round platform 5b, the big end of the second round platform 5b links to each other with the columniform second boss 6b, and the coning angle of the second round platform 6b is 45 °, perhaps is other angle values between 34 °-150 °, reinforcing pull rod 2b pierces into the second boss 6b vertically, the front end of the second boss 6b links to each other with the small end of the 3rd round platform 7b, and the big end of the 3rd round platform 7b links to each other with columniform the 3rd boss 8b, and the coning angle of the 3rd round platform 7b is 90 °, perhaps be other angle values between 34 °-150 °, reinforcing pull rod 2b pierces into the 3rd boss 8b vertically.
The coning angle of above-mentioned round platform 4b also can be 60 ° or 120 °, and the coning angle of the second round platform 6b also can be 60 ° or 120 °, and the coning angle of the 3rd round platform 7b also can be 60 ° or 120 °.
As shown in Figure 2, implement the jet drill rig of large-head anchor rod of the present invention, comprise drilling rod 10, the bottom of drilling rod 10 is provided with 2-4 round platform nozzle 11 around drilling rod 10, angle between the axis of the axis of each round platform nozzle 11 and drilling rod 10 is 30 ° or 45 ° or 50 ° or 60 °, and the angle between the axis of the axis of each round platform nozzle 11 and drilling rod 10 also can be other numerical value between 17 °-75 °.
The job practices of large-head anchor rod shown in Figure 1 of the present invention, it may further comprise the steps:
A) adopt large-head anchor rod jet drill rig of the present invention, size according to the coning angle of the round platform of the large-head anchor rod of designing requirement, angle between the axis of the axis of each the round platform nozzle 11 on the drilling rod 10 of described jet drill rig and drilling rod 10 adjust to be installed, to be made the angle between the axis of its bus that equals round platform and drilling rod 10;
B) according to the design attitude of anchor hole, adopt the large-head anchor rod jet drill rig to carry out the drilling and forming hole operation, the boring aperture scope is 100-250mm, reaches the designing requirement of anchor hole until drilling depth;
C) after anchor hole that drilling rod 10 creeps into reaches projected depth, promote drilling rod 10 on one side, each nozzle 11 by drilling rod 10 bottoms utilizes cement paste that hole wall is carried out churning or multiple spray on one side, by adjustment, form round platform and the boss that adheres to specification by churning or multiple spray to pressure and/or drilling rod 10 hoisting velocities;
D) finish churning or spray operation again by designing requirement after, stop churning or multiple spray, the drilling rod of moving away inserts reinforcing pull rod again in anchor hole, form large-head anchor rod.
Job practices with large-head anchor rod of second round platform and second boss of the present invention, it may further comprise the steps:
A) large-head anchor rod jet drill rig of the present invention, size according to the coning angle of second round platform on the large-head anchor rod of designing requirement, angle between the axis of the injection direction of each the round platform nozzle on the drilling rod 10 on the jet drill rig and drilling rod 10 adjust to be installed, to be made the angle between the axis of its bus that equals second round platform and drilling rod 10;
B) according to the design attitude of anchor hole, adopt described large-head anchor rod jet drill rig to carry out the drilling and forming hole operation, the boring aperture scope is 150-200mm, reaches the designing requirement of anchor hole until drilling depth;
C) after anchor hole that described drilling rod 10 creeps into reaches projected depth, promote drilling rod 10 on one side, pass through each round platform nozzle of drilling rod 10 bottoms on one side, utilize cement paste that hole wall is carried out churning or multiple spray, by adjustment, form boss, second round platform and second boss that adheres to specification by churning or multiple spray to pressure and/or drilling rod 10 hoisting velocities;
D) if the coning angle of the coning angle of the round platform of the large-head anchor rod of design and second round platform is unequal, drilling rod 10 is lifted out anchor hole, size according to the coning angle of the round platform 4 of the large-head anchor rod of designing requirement, angle between the axis of each the round platform nozzle on the drilling rod 10 of the described jet drill rig of adjustment installation and the axis of drilling rod 10, make the angle between the axis of its bus that equals round platform and drilling rod 10, and then drilling rod 10 inserted in the anchor holes to the round platform position, if the coning angle of the round platform of the large-head anchor rod of design equates with the coning angle of second round platform 5, then directly carry out next procedure;
E) after round platform front position in the drilling rod 10 arrival anchor holes, promote drilling rod 10 on one side, pass through each described round platform nozzle of drilling rod 10 bottoms on one side, utilize cement paste that hole wall is carried out churning or multiple spray, by adjustment, form the round platform that adheres to specification by churning or multiple spray to pressure and/or drilling rod 10 hoisting velocities;
F) finish churning or spray operation again by designing requirement after, stop churning or multiple spray, the drilling rod 10 of moving away inserts reinforcing pull rod again in anchor hole, form large-head anchor rod.
Job practices with large-head anchor rod of the 3rd round platform and the 3rd boss can be carried out with reference to the job practices of the large-head anchor rod with second round platform and second boss.Above-mentioned multiple spray is meant: reach designing requirement when churning once can't make the aperture of anchor hole, then allow drilling rod pump for more than 10 time, repeatedly hole wall is carried out churning, reach designing requirement until the aperture that makes anchor hole.
For the variation of the diameter of above-mentioned various bolthole sections, can adopt to adjust high-pressure rotary-spray or spray pressure, churning drill speed and drill bit translational speed again and realize according to existing construction experience and formation condition.
Embodiment recited above is described the preferred embodiment for the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. large-head anchor rod comprises the body of rod, is provided with reinforcing pull rod in the body of rod vertically, the front end that it is characterized in that the described body of rod is provided with columniform boss, round platform big by front end, that the rear end is little links to each other between boss and the body of rod, and the coning angle of round platform is 34 °-150 °, and described reinforcing pull rod pierces into boss vertically.
2. large-head anchor rod according to claim 1, the front end that it is characterized in that described boss links to each other with the small end of second round platform, the big end of second round platform links to each other with the big end of columniform second boss, and the coning angle of second round platform is 34 °-150 °, and described reinforcing pull rod pierces into second boss vertically.
3. large-head anchor rod according to claim 2, the front end that it is characterized in that described second boss links to each other with the small end of the 3rd round platform, the big end of the 3rd round platform links to each other with the big end of columniform the 3rd boss, the coning angle of the 3rd round platform is 34 °-150 °, and described reinforcing pull rod pierces into the 3rd boss vertically.
4. large-head anchor rod according to claim 3, the coning angle that it is characterized in that described round platform are 60 °-120 °, and the coning angle of described second round platform is 60 °-120 °, and the coning angle of described the 3rd round platform is 60 °-120 °.
5. large-head anchor rod according to claim 4, the coning angle that it is characterized in that described round platform are 80 °-90 °, and the coning angle of described second round platform is 80 °-90 °, and the coning angle of described the 3rd round platform is 80 °-90 °.
6. implement the jet drill rig of the described large-head anchor rod of claim 1, comprise drilling rod, the bottom that it is characterized in that described drilling rod is provided with more than one round platform nozzle around drilling rod, and the angle between the axis of each round platform nozzle and the axis of described drilling rod is 17 °-75 °.
7. large-head anchor rod jet drill rig according to claim 6 is characterized in that the bottom of described drilling rod is provided with 2-4 round platform nozzle around drilling rod, and the angle between the axis of each round platform nozzle and the axis of described drilling rod is 30 °-60 °.
8. large-head anchor rod jet drill rig according to claim 7 is characterized in that the angle between the axis of the axis of each described round platform nozzle and described drilling rod is 40 °-50 °.
9. implement the job practices of the described large-head anchor rod of claim 1, it is characterized in that may further comprise the steps:
A) adopt the described large-head anchor rod jet drill rig of claim 6, size according to the coning angle of the round platform of the large-head anchor rod of designing requirement, angle between the axis of the axis of each the described round platform nozzle on the described drilling rod of described jet drill rig and drilling rod adjust to be installed, to be made the angle between the axis of its bus that equals round platform and drilling rod;
B) according to the design attitude of anchor hole, adopt described large-head anchor rod jet drill rig to carry out the drilling and forming hole operation, reach the designing requirement of anchor hole until drilling depth;
C) after the anchor hole of described rod boring reaches projected depth, promote drilling rod on one side, each nozzle by the drilling rod bottom utilizes cement paste that hole wall is carried out churning or multiple spray on one side, by adjustment, form round platform and the boss that adheres to specification by churning or multiple spray to pressure and/or drilling rod hoisting velocity;
D) finish churning or spray operation again by designing requirement after, stop churning or multiple spray, the drilling rod of moving away inserts reinforcing pull rod again in anchor hole, form large-head anchor rod.
10. implement the job practices of the described large-head anchor rod of claim 2, it is characterized in that may further comprise the steps:
A) adopt the described large-head anchor rod jet drill rig of claim 6, size according to the coning angle of second round platform on the large-head anchor rod of designing requirement, angle between the axis of the injection direction of each the described round platform nozzle on the described drilling rod on the described jet drill rig and drilling rod adjust to be installed, to be made the angle between the axis of its bus that equals described second round platform and drilling rod;
B) according to the design attitude of anchor hole, adopt described large-head anchor rod jet drill rig to carry out the drilling and forming hole operation, reach the designing requirement of anchor hole until drilling depth;
C) after the anchor hole of described rod boring reaches projected depth, promote drilling rod on one side, pass through each described round platform nozzle of drilling rod bottom on one side, utilize cement paste that hole wall is carried out churning or multiple spray, by adjustment, form boss, second round platform and second boss that adheres to specification by churning or multiple spray to pressure and/or drilling rod hoisting velocity;
D) if the coning angle of the coning angle of the round platform of the large-head anchor rod of design and second round platform is unequal, drilling rod is lifted out anchor hole, size according to the coning angle of the round platform of the large-head anchor rod of designing requirement, angle between the axis of each the described round platform nozzle on the drilling rod of the described jet drill rig of adjustment installation and the axis of drilling rod, make the angle between the axis of its bus that equals round platform and drilling rod, and then drilling rod inserted in the anchor hole to the round platform position, if the coning angle of the round platform of the large-head anchor rod of design equates with the coning angle of second round platform, then directly carry out next procedure;
E) after round platform front position in the described drilling rod arrival anchor hole, promote drilling rod on one side, pass through each described round platform nozzle of drilling rod bottom on one side, utilize cement paste that hole wall is carried out churning or multiple spray, by adjustment, form the round platform that adheres to specification by churning or multiple spray to pressure and/or drilling rod hoisting velocity;
F) finish churning or spray operation again by designing requirement after, stop churning or multiple spray, the drilling rod of moving away inserts reinforcing pull rod again in anchor hole, form large-head anchor rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100887372A CN101608449B (en) | 2009-07-10 | 2009-07-10 | Big-end anchor rod and construction method for implementing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100887372A CN101608449B (en) | 2009-07-10 | 2009-07-10 | Big-end anchor rod and construction method for implementing same |
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| CN101608449A true CN101608449A (en) | 2009-12-23 |
| CN101608449B CN101608449B (en) | 2012-04-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236335A (en) * | 2018-08-24 | 2019-01-18 | 中国建筑第八工程局有限公司 | Penetrate the anchor hole construction method for adjoining built supporting construction |
| CN111733809A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A toper supporting body and stock for stock |
| CN111733810A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A awl section of thick bamboo supporting body and stock for stock |
-
2009
- 2009-07-10 CN CN2009100887372A patent/CN101608449B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236335A (en) * | 2018-08-24 | 2019-01-18 | 中国建筑第八工程局有限公司 | Penetrate the anchor hole construction method for adjoining built supporting construction |
| CN109236335B (en) * | 2018-08-24 | 2019-11-19 | 中国建筑第八工程局有限公司 | Penetrate the anchor hole construction method for adjoining built supporting construction |
| CN111733809A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A toper supporting body and stock for stock |
| CN111733810A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A awl section of thick bamboo supporting body and stock for stock |
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| Publication number | Publication date |
|---|---|
| CN101608449B (en) | 2012-04-18 |
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