CN102080376B - Built-in composite anchor rod construction method and composite anchor rod drilling tool used by same - Google Patents
Built-in composite anchor rod construction method and composite anchor rod drilling tool used by same Download PDFInfo
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- CN102080376B CN102080376B CN2010105814332A CN201010581433A CN102080376B CN 102080376 B CN102080376 B CN 102080376B CN 2010105814332 A CN2010105814332 A CN 2010105814332A CN 201010581433 A CN201010581433 A CN 201010581433A CN 102080376 B CN102080376 B CN 102080376B
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- composite bolt
- composite anchor
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Abstract
The invention relates to a built-in composite anchor rod construction method and a composite anchor rod drilling tool used by the same in the field of geotechnical engineering anchorage. The composite anchor rod construction method using the composite anchor rod drilling tool can complete composite anchor rod construction in one-time construction, and a composite anchor rod consisting of a cement soil anchorage body (4), a force transfer belt (6) and a rod body (5) is formed in the soil; the huge anchorage force generated by the cement soil anchorage body (4) can be reliably transferred by firm connection of the force transfer belt (6) and the rod body (5), so the bearing capacity of the anchor rod is greatly improved; and because the anchor rod can be widely used in the soft soil regions, the engineering construction cost can be greatly saved.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to the geotechnical anchor engineering field.
Background technology
Along with engineering construction developing rapidly of underground space development particularly; Demand to anchor pole in engineering constructions such as bracing of foundation pit, slope retaining increases day by day, but in soft clay area, because soil strength is low; The side friction of anchor pole is little, and the use of anchor pole receives very big restriction.The anchor pole that present most widely used anchor pole form is a drilling holes and late grouting, but at present because of reasons such as anchor pole are long, bearing capacity is low, anchor pole has received considerable restraint in engineering Application for Field such as bracing of foundation pit, slope retainings.The anchor pole form that has occurred inserting in the high-pressure rotary jet grouting pile, cement mixing method in level construction reinforcing bar or steel strand in recent years and formed; But often the reasons such as bond stress deficiency because of cement-soil and reinforcing bar, steel strand cause the anchor pole bearing capacity low, and the time have engineering accident to take place.
The content of invention
First purpose of the present invention is to provide a kind of built-in Composite Bolt job practices; This built-in Composite Bolt job practices can conveniently realize the Composite Bolt construction; And can huge anchored force be passed to by the object of anchoring reliably, be specially adapted to anchor bolt construction in the soft soil layer.
This built-in Composite Bolt job practices may further comprise the steps:
A) confirm the anchor pole position;
B) construction cement-soil anchoring body, and in the cement-soil anchoring body, insert hollow tubular structure;
C) in hollow tubular structure, place the body of rod;
D) extract hollow tubular structure, the body of rod is stayed in the cement-soil anchoring body, and the material of the load transfering strip that filling is not condensed between the body of rod and cement-soil anchoring body;
E) treat just to have formed behind the load transfering strip material solidification in the step d) Composite Bolt, accomplish the Composite Bolt construction.
In above-mentioned built-in Composite Bolt job practices, above-mentioned cement-soil anchoring body can be a cement mixing method;
In above-mentioned built-in Composite Bolt job practices, above-mentioned load transfering strip can be cement slurry or the mortar body equal strength structure greater than the cement-soil anchoring body.
In above-mentioned built-in Composite Bolt job practices, above-mentioned tubular structure can be the drilling rod of the working hollow of cement-soil anchoring body.
Built-in Composite Bolt job practices construction technology of the present invention is simple, and reliability is high, can disposable completion Composite Bolt construct, and has practiced thrift the Composite Bolt construction cost significantly.
Second purpose of the present invention provides a kind of Composite Bolt drilling tool, but this Composite Bolt drilling tool one-off construction is accomplished the Composite Bolt construction, and technology is very simple, has practiced thrift the Composite Bolt construction cost significantly.
This Composite Bolt drilling tool comprises drilling rod, cement-soil anchoring body pile device, the stake internal drilling device three parts composition of hollow, and cement-soil anchoring body pile device wherein, stake internal drilling device all are connected and are positioned at the end of the drilling rod of hollow with the drilling rod of hollow.
In above-mentioned Composite Bolt drilling tool, above-mentioned cement-soil anchoring body pile device can be the stirring-head of cement mixing method.
In above-mentioned Composite Bolt drilling tool, above-mentioned cement-soil anchoring body pile device can be the cyclone nozzle of high-pressure rotary jet grouting pile.
In above-mentioned Composite Bolt drilling tool, perforating device can be common drill bit in the above-mentioned stake.
Composite Bolt drilling tool of the present invention easy construction, cost is low, can increase substantially the Composite Bolt efficiency of construction, can accomplish the Composite Bolt construction in high quality.
Description of drawings
Fig. 1 is used built-in Composite Bolt construction technology of one embodiment of the present of invention and Composite Bolt drilling tool structure organigram.
The specific embodiment
As an embodiment as shown in Figure 1 of the present invention, main purpose is to introduce the structure construction of built-in Composite Bolt job practices and Composite Bolt drilling tool.At first combine structure construction and the operating principle thereof of introducing the Composite Bolt drilling tool in the present embodiment shown in Figure 1.As shown in Figure 1, Composite Bolt drilling tool of the present invention comprise hollow drilling rod (1), be connected in cement-soil anchoring body pile device (2) on the drilling rod (1) of hollow, and internal drilling device (3) the three parts composition that is connected with the drilling rod (1) of hollow.Cement-soil anchoring body pile device (2) wherein can be the stirring-head of double end cement mixing pile, also can be the cyclone nozzle of spiral plate structure or rotary churning pile, and cement-soil anchoring body pile device (2) firmly is connected with the drilling rod (1) of hollow.Stake internal drilling device (3) firmly is connected with the drilling rod (1) of hollow.Combine Fig. 1 to introduce the operating principle of built-in Composite Bolt job practices and Composite Bolt drilling tool with the lower part.At first, the first step is confirmed the anchor pole position according to plan, gets into for second step then.In this step, utilize rig that the drilling rod (1) of hollow is pierced the soil body, accomplish the construction of cement-soil anchoring body (4) with the technology similar with the construction cement mixing method.After treating that cement-soil anchoring body (4) construction is accomplished, in the present embodiment, the drilling rod of hollow (1) itself is the hollow tubular structure that places cement-soil anchoring body (4).In case of necessity, also can the drilling rod (1) of hollow be extracted, in cement-soil anchoring body (4), insert steel pipe as hollow tubular structure.Thereby accomplish second step of built-in Composite Bolt job practices, got into for the 3rd step.In this step; Can be with the body of rod (5) in the hollow part of constructing operation face one side in the drilling rod (1) of hollow; Because of drilling rod (1) inner wall smooth and the dimensionally stable of hollow, so the body of rod (5) is easy to insert and after inserting, the body of rod (5) is positioned at the position, axis of cement-soil anchoring body (4); Thereby easy construction, reliable in quality.Thereby accomplish the 3rd step of built-in Composite Bolt job practices, got into for the 4th step.In this step, rotate the drilling rod (1) of hollow when pulling out the drilling rod (1) of hollow outside, and in the drilling rod (1) of hollow, inject cement paste simultaneously.Under the effect of stake internal drilling device (3); Drilling rod (1) in hollow can form the column hole at the cement-soil anchoring body (4) that its original position extruding is not condensed when extracting; By the grout filling in the drilling rod that comes from hollow (1), the body of rod (5) then can pass through the hollow part of the drilling rod (1) of hollow and stay in the cement paste, in this step simultaneously; Also can replace cement paste with cement mortar, cement paste after solidifying or cement mortar are the load transfering strip (6) of Composite Bolt.Thereby accomplish the 4th step of built-in Composite Bolt job practices, got into for the 5th step.This step is the maintenance step of cement-soil anchoring body (4) and load transfering strip (6), treats just to have accomplished built-in Composite Bolt construction after cement-soil anchoring body (4) and load transfering strip (6) maintenance are accomplished.
This patent includes but not limited to other job practicess of the alternative use of professional person in this area.
Claims (4)
1. built-in Composite Bolt job practices is characterized in that may further comprise the steps:
A) confirm the anchor pole position;
B) construction cement-soil anchoring body (4), and in cement-soil anchoring body (4), insert hollow tubular structure;
C) in hollow tubular structure, place the body of rod (5);
D) extract hollow tubular structure, the body of rod (5) is stayed in the cement-soil anchoring body (4), and the material of the load transfering strip (6) that filling is not condensed between the body of rod (5) and cement-soil anchoring body (4);
E) treat just to have formed Composite Bolt behind load transfering strip in the step d) (6) material solidification, accomplish the Composite Bolt construction.
2. built-in Composite Bolt job practices according to claim 1 is characterized in that above-mentioned cement-soil anchoring body (4) can be a cement mixing method.
3. built-in Composite Bolt job practices according to claim 1 is characterized in that above-mentioned load transfering strip (6) can be the structure of intensity greater than cement-soil anchoring body (4), and said structure comprises cement slurry or mortar body.
4. built-in Composite Bolt job practices according to claim 1 is characterized in that above-mentioned tubular structure can be the drilling rod (1) of the working hollow of cement-soil anchoring body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105814332A CN102080376B (en) | 2010-12-09 | 2010-12-09 | Built-in composite anchor rod construction method and composite anchor rod drilling tool used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105814332A CN102080376B (en) | 2010-12-09 | 2010-12-09 | Built-in composite anchor rod construction method and composite anchor rod drilling tool used by same |
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| Publication Number | Publication Date |
|---|---|
| CN102080376A CN102080376A (en) | 2011-06-01 |
| CN102080376B true CN102080376B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105814332A Active CN102080376B (en) | 2010-12-09 | 2010-12-09 | Built-in composite anchor rod construction method and composite anchor rod drilling tool used by same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939425B (en) * | 2017-11-23 | 2023-07-28 | 山西新能正源智能装备有限公司 | Multifunctional operation trolley |
| CN112900459A (en) * | 2021-01-27 | 2021-06-04 | 洛阳理工学院 | Composite reinforcement method for soft clay side slope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202795Y (en) * | 1994-08-08 | 1995-07-05 | 何庆林 | Big head anchor rod drill machine |
| CN1204713A (en) * | 1998-07-24 | 1999-01-13 | 黄运飞 | Multifunction stirring rotation spray roofbolt rig and construction method |
| CN1727633A (en) * | 2005-06-22 | 2006-02-01 | 叶迎新 | Drill pipe of the center emplacement type jumbolter and construction method |
| CN201915404U (en) * | 2010-12-09 | 2011-08-03 | 张继红 | Composite anchor rod drilling tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT505959B1 (en) * | 2004-03-23 | 2011-06-15 | Alwag Tunnelausbau Gmbh | METHOD AND DEVICE FOR DRILLING, IN PARTICULAR BUTTING OR TORQUE DRILLING OF A HOLE IN GROUND OR ROCK MATERIAL AND FOR FORMING AN ANCHORAGE |
-
2010
- 2010-12-09 CN CN2010105814332A patent/CN102080376B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202795Y (en) * | 1994-08-08 | 1995-07-05 | 何庆林 | Big head anchor rod drill machine |
| CN1204713A (en) * | 1998-07-24 | 1999-01-13 | 黄运飞 | Multifunction stirring rotation spray roofbolt rig and construction method |
| CN1727633A (en) * | 2005-06-22 | 2006-02-01 | 叶迎新 | Drill pipe of the center emplacement type jumbolter and construction method |
| CN201915404U (en) * | 2010-12-09 | 2011-08-03 | 张继红 | Composite anchor rod drilling tool |
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| CN102080376A (en) | 2011-06-01 |
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Effective date of registration: 20181105 Address after: 200086 502, room 4, Lane 306, Helen Road, Hongkou District, Shanghai. Patentee after: Shanghai Solid Earth Rock Engineering Co., Ltd. Address before: 200086 502, room 4, Lane 306, Helen Road, Shanghai. Patentee before: Zhang Jihong |
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