CN101949151A - Recyclable locking anchor rod and construction method thereof - Google Patents
Recyclable locking anchor rod and construction method thereof Download PDFInfo
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- CN101949151A CN101949151A CN 201010295584 CN201010295584A CN101949151A CN 101949151 A CN101949151 A CN 101949151A CN 201010295584 CN201010295584 CN 201010295584 CN 201010295584 A CN201010295584 A CN 201010295584A CN 101949151 A CN101949151 A CN 101949151A
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Abstract
The invention relates to a recyclable locking anchor rod and a construction method thereof in the field of geotechnical engineering anchoring. The recyclable locking anchor rod comprises four parts, namely an anchoring section (1), a rod body (2), an anchoring section locker and an anchoring section lock remover (3), wherein firm connection between the rod body (2) and the anchoring section locker is removed by the anchoring section lock remover (3) after the anchor rod is used, and the rod body (2) is recycled by drawing the rod body (2). The construction method of the recyclable locking anchor rod comprises the following five steps of: positioning the anchor rod; mounting and constructing; using; unlocking; and recycling the rod body (2). The recyclable locking anchor rod and the construction method thereof have the advantages of conveniently recycling main stress members of the anchor rod on the premise of guaranteeing safety and reliability of the anchor rod, high recovery rate, successfully solving the problem of an underground exceeding ground red line for the construction anchor rod in cities, along with convenience of recycling construction, low manufacturing cost, outstanding environment-friendly effect, and wide application to bracing of a foundation pit and other engineering fields.
Description
Technical field
The present invention relates to geotechnical anchor engineering field in the civil engineering.
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, and cause contiguous place underground space development difficulty owing to often leave over the body of rod after the anchor pole use at present in adjacent domain, limited the application of anchor pole to a great extent.In order to realize the recovery of anchor bar body, existing callable anchor pole mainly contains construction technologies such as various anchor poles by the mechanical whorl connection, the detachable anchor pole of U type.The nearest documents of callable anchor pole is a Chinese patent 01234117.7, this technology and other recoverable anchor rod technology all are to adopt the link technique of screw thread-like, by deviating from the never recyclable body of the callable beaer of anchor pole after the feasible use of the mechanical movement of the body of rod, thereby reach the purpose that reclaims the body of rod, there is following defective in this technology: one, with recyclable body and can not recovery body connect, manufacture craft is complicated, the cost height by mechanical connection manner for prior art; They are two years old, behind the anchor bolt construction, because anchor pole is difficult to keep original linear state in drilling construction, deadweight and loading process, thereby the motion modes such as rotation of anchor pole when reclaiming is difficult to realize, engineering experience confirms, when anchor pole is longer (as the soil nailing in the present soil nailing wall foundation pit support), be difficult to realize the purpose that reclaims, so such callable anchor pole is difficult to wide popularization and application in field of civil engineering.The second class recoverable anchor rod is the detachable anchor pole of U-shaped, this technology is that high strength steel strand is curved U-shaped, then U shaped steel twisted wire is positioned in the armature boring, is used to complete the back by discharging an end of U-shaped steel strand, and apply pulling force at the other end, steel strand are pulled out recovery by force.The shortcoming of this technology is: the first, this technology in use, the suffered distributed force of steel strand direction along the line is little and inhomogeneous; The second, pulling force is big during recovery, and recovery difficult is big; The 3rd, this technique building technology complexity, cost height.Because above defective though this technology has occurred for many years, still is difficult to promote so far.I have proposed before this, and callable end holds formula anchor pole technology, callable end holds callable anchor pole form and job practicess such as friction rock bolt, and in order further to improve the anchor pole bearing capacity, I have proposed callable locking-type anchor pole and job practices thereof.
The content of invention
First purpose of the present invention is to provide a kind of callable locking-type anchor pole, this callable locking-type anchor pole can be given full play to the potentiality of geotechnical body, after being used to complete, the body of rod can be reclaimed, avoid the residual influence of the body of rod to the later stage underground space development, enlarged the range of application of anchor pole, safe and reliable, economic environmental protection.
This callable locking-type anchor pole comprises anchoring section, the body of rod, anchoring section lock, anchoring section lockaid gun four parts composition, anchoring section wherein is for being connected the position that anti-pulling capacity is provided with geotechnical body, the body of rod is for firmly being connected the structure of transmitting the anchor pole anti-pulling capacity by anchoring section lock and anchoring section, the anchoring section lockaid gun is for removing the firm device that is connected between the body of rod and the anchoring section lock with the supporting use of anchoring section lock and after anchor pole uses.
In above-mentioned callable locking-type anchor pole, above-mentioned anchoring section lockaid gun can be the structure that is connected and extends to operating surface with the anchoring section lock.
In above-mentioned callable locking-type anchor pole, ground tackle two parts composition that above-mentioned anchoring section lock can comprise anchor and be connected with anchor, anchor wherein is the device that firmly is connected with anchoring section, and anchor is a hollow tubular structure.
In above-mentioned callable locking-type anchor pole, latch two parts composition that above-mentioned anchoring section lock can comprise the bolt-type anchor and be connected with the bolt-type anchor, bolt-type anchor wherein is a hollow structure, and is provided with lockhole at bolt-type anchor inner hollow position.
In above-mentioned callable locking-type anchor pole, can between the non-anchoring section lock of above-mentioned body of rod link position and geotechnical body, low-intensity be set and be connected.
In above-mentioned callable locking-type anchor pole, above-mentioned anchoring section can be one section anchoring section, also can be the combination of multistage anchoring section.
In above-mentioned callable locking-type anchor pole, can be at the above-mentioned body of rod, anchoring section lockaid gun outside mounting sleeve.
Above-mentioned anchoring section can be to connect the different bodies of rod respectively and the callable locking-type anchor pole of pressure dispersing type that forms.
Second purpose of the present invention is to provide a kind of callable locking-type anchor rod construction method, this callable locking-type anchor rod construction method can be realized the installation of above-mentioned callable locking-type anchor pole smoothly and reclaim construction, and can provide very big anti-pulling capacity, save the geotechnical anchor engineering cost significantly, easy construction, reliable in quality.
This callable locking-type anchor rod construction method may further comprise the steps:
A) determine the anchor pole position;
B) with the anchoring section lock body of rod is locked, and place geotechnical body, finish anchoring section and anchor bolt construction;
C) enter operating period of anchor pole;
D) after anchor pole is finished using, utilize the anchoring section lockaid gun that the anchoring section lock is separated with the body of rod;
E) reclaim the body of rod.
Callable locking-type anchor pole of the present invention and job practices thereof are guaranteeing to have realized under the safe and reliable prerequisite of anchor pole that the convenient of anchor pole main bearing member reclaims, the rate of recovery is very high, reclaim easy construction, cost is low, environmental benefit is outstanding, successfully solved the underground land used red line problem that surmounts of construction anchor pole in the city, extensively model is applied to engineering fields such as bracing of foundation pit.
Description of drawings
Fig. 1 is the used callable locking-type anchor structure organigram of first embodiment of the present invention.
Fig. 2 is the used callable locking-type anchor structure organigram of second embodiment of the present invention.
The specific embodiment
As an embodiment as shown in Figure 1 of the present invention, main purpose is to introduce structure construction, operating principle and the job practices thereof of first kind of callable locking-type anchor pole.At first in conjunction with the structure construction of introducing the callable locking-type anchor pole in the present embodiment shown in Figure 1.Callable locking-type anchor pole of the present invention comprises anchoring section (1), the body of rod (2), the anchoring section lock, anchoring section lockaid gun (3) four parts are formed, in the present embodiment, anchoring section lock wherein comprises anchor (4) and ground tackle (5) two parts composition, after anchor bolt construction is finished in the present embodiment, anchoring section (1) is for placing the cement mortar or the higher material of cement lumps equal strength of geotechnical body (6), anchoring section (1) provides anti-pulling capacity by closely contacting with geotechnical body (6), in the present embodiment, anchor (4) can be coarse steel pipe of external surface or other forms of hollow structure, anchor (4) is connected with anchoring section (1), can before solidify anchoring section (1), anchor (4) be placed in one, after treating that anchoring section (1) solidifies, just produced firm the connection between anchor (4) and the anchoring section (1).Ground tackle (5) places the far-end of anchor (4), can adopt steel strand or reinforcing bar as the body of rod (2), the body of rod (2) passes the hollow part of anchor (4), by ground tackle (5) body of rod (2) is connected with anchor (4), at the body of rod (2) when bearing pulling force, under the effect of ground tackle (5), the body of rod (2) firmly is connected with anchor (4).When the body of rod (2) did not bear pulling force or only bears slight pressure, ground tackle (5) just lost the effect of contraction to the body of rod (2), and the body of rod (2) can break away from anchor (4).In the present embodiment, the intermediate plate of anchoring section lockaid gun (3) with ground tackle (5) is connected.In the present embodiment, anchoring section lockaid gun (3) is a rope that the tension bearing capacity can be provided.When the construction anchor pole, with cement paste or cement mortar contact-segment, the body of rod (2) can be placed in the plastic pipe with anchoring section lockaid gun (3), to reduce the direct bonding strength between the body of rod (2), anchoring section lockaid gun (3) and cement paste, cement mortar contact-segment.Also can smear cured or wet goods material and reduce direct bonding strength between itself and cement paste or cement mortar contact-segment at the body of rod (2) and anchoring section lockaid gun (3) external surface.Present embodiment is introduced the job practices and the operating principle of callable locking-type anchor pole of the present invention with the lower part.The first step in the job practices of callable locking-type anchor pole reaches the position that anchor pole is determined in designing requirement at first as required, enters second step of the job practices of callable locking-type anchor pole then.In this step, anchor pole position in geotechnical body (6) boring earlier, utilize the ground tackle (5) that is connected with anchor (4) that the body of rod (2) is locked then, and anchoring section lockaid gun (3) is connected on the intermediate plate of ground tackle (5), make anchoring section lockaid gun (3) far-end bending is extended to operating surface as shown in Figure 1 and along the body of rod (2), anchor (4) is formed the anchoring section lock jointly with ground tackle (5), and be placed in the above-mentioned boring, to hole then fills with water mud or cement mortar, after cement paste or cement mortar are solidified, just finish anchoring section (1) and anchor bolt construction.In this step, frictional resistance in order to reduce to reclaim the body of rod (2), can the anchoring section lockaid gun (3) and the external surface of the body of rod (2) smear cured oil or separate anchoring section lockaid gun (3) at its outside sleeving plastic pipe, the body of rod (2) contacts with the direct of cement paste, cement mortar.Can also replace boring and filling cement paste or cement mortar wherein at anchor pole position construction cement earth pile in this step, maybe will have the anchoring section lock and the body of rod (2) of anchoring section lockaid gun (3) is directly placed geotechnical body (6).Thereby finish second step of the job practices of callable locking-type anchor pole of the present invention, entered for the 3rd step.In this step with the body of rod (2) with need anchoring enclose purlin or collar tie beam is connected, the body of rod (2) can transmit the anti-pulling capacity from anchoring section (1), reaches the anchoring effect of anchor pole.Thereby finish the 3rd step of the job practices of callable locking-type anchor pole of the present invention, entered for the 4th step.In this step, after anchor pole is finished using, the releasing body of rod (2) encloses being connected between purlin or the collar tie beam with the anchoring of above-mentioned need, make the body of rod (2) no longer bear pulling force, then at above-mentioned collar tie beam or enclose purlin position drawing anchoring section lockaid gun (3), under the tension of anchoring section lockaid gun (3), the intermediate plate of ground tackle (5) is as shown in Figure 1 extracted out, just removed the constraint of ground tackle (5), realized the purpose of utilizing anchoring section lockaid gun (3) that the anchoring section lock is separated with the body of rod (2) the body of rod (2).Thereby finish the 4th step of the job practices of callable locking-type anchor pole of the present invention, entered for the 5th step.In this step, can be directly realize recovery to the body of rod (2) at enclose purlin or the collar tie beam position drawing body of rod (2) of above-mentioned need anchoring.Thereby finish the installation of callable locking-type anchor pole of the present invention and reclaim construction.In the present embodiment, in order to improve the anti-pulling capacity of anchor pole, a plurality of anchoring sections (1) and corresponding anchoring section lock, anchoring section lockaid gun (3) can be set as stated above, can use same rod body (2), also can a body of rod (2) be set, form the callable locking-type anchor pole of pressure dispersing type in each anchoring section (1).
As two embodiment as shown in Figure 2 of the present invention, main purpose is to introduce structure construction, operating principle and the job practices thereof of second kind of callable locking-type anchor pole.The structure construction of second kind of callable locking-type anchor pole in the present embodiment is similar to first embodiment, and difference is following three aspects.First difference is, the anchoring section lock is latch (9) composition that comprises bolt-type anchor (7) and be connected with bolt-type anchor (7), this bolt-type anchor (7) is a hollow structure as shown in Figure 2, one lockhole (8) is set in the inboard of hollow structure, bolt-type anchor (7) external surface is coarse, is convenient to firmly be connected with anchoring section (1).Second difference is that the body of rod (2) is the flexible strand that a distal site has the hole, can be wire rope.The 3rd difference is that anchoring section lockaid gun (3) is an end and the flexible strand that is connected of latch (9).The operating principle and the job practices thereof of callable locking-type anchor pole in the present embodiment are similar to first embodiment, and difference is following two aspects.First difference is in the second above-mentioned step, adopt connected mode as shown in Figure 2 to connect, align with lockhole (8) in the hole that is about to the body of rod (2) distal site, latch (9) is inserted in the hole and lockhole (8) of the body of rod (2) distal site, thereby finish being connected of the body of rod (2) and anchoring section lock.Second difference is that directly drawing anchoring section lockaid gun (3) just can be extracted latch (9), thereby the anchoring section lock is separated with the body of rod (2) in the 4th above-mentioned step.
This patent includes but not limited to other job practicess of the alternative use of professional person in this area.
Claims (9)
1. callable locking-type anchor pole, it is characterized in that this callable locking-type anchor pole comprises anchoring section (1), the body of rod (2), the anchoring section lock, anchoring section lockaid gun (3) four parts are formed, anchoring section wherein (1) is for being connected the position that anti-pulling capacity is provided with geotechnical body (6), the body of rod (2) is for firmly being connected the structure of transmitting the anchor pole anti-pulling capacity by anchoring section lock and anchoring section (1), anchoring section lockaid gun (3) is with the supporting use of anchoring section lock and can removing the firm device that is connected between the body of rod (2) and the anchoring section lock after the anchor pole use.
2. callable locking-type anchor pole according to claim 1 is characterized in that above-mentioned anchoring section lockaid gun (3) can be the structure that is connected and extends to operating surface with the anchoring section lock.
3. callable locking-type anchor pole according to claim 1, it is characterized in that ground tackle (5) two parts composition that above-mentioned anchoring section lock can comprise anchor (4) and be connected with anchor (4), anchor wherein (4) is the device that firmly is connected with anchoring section (1), and anchor (4) is a hollow tubular structure.
4. callable locking-type anchor pole according to claim 1, it is characterized in that latch (9) two parts composition that above-mentioned anchoring section lock can comprise bolt-type anchor (7) and be connected with bolt-type anchor (7), bolt-type anchor (7) wherein is a hollow structure, and is provided with lockhole (8) at bolt-type anchor (7) inner hollow position.
5. callable locking-type anchor pole according to claim 1 is characterized in that can between the non-anchoring section lock of the above-mentioned body of rod (2) link position and geotechnical body (6) low-intensity be set is connected.
6. callable locking-type anchor pole according to claim 1 is characterized in that above-mentioned anchoring section (1) can be one section anchoring section (1), also can be the combination of multistage anchoring section (1).
7. according to claim 1 and the described anchoring section of claim 6 (1), it is characterized in that above-mentioned anchoring section (1) can be to connect the different body of rod (2) respectively and the callable locking-type anchor pole of pressure dispersing type of formation.
8. callable locking-type anchor pole according to claim 1, it is characterized in that can be at the above-mentioned body of rod (2), anchoring section lockaid gun (3) outside mounting sleeve.
9. callable locking-type anchor rod construction method is characterized in that this callable locking-type anchor rod construction method may further comprise the steps:
A) determine the anchor pole position;
B) with the anchoring section lock body of rod (2) is locked, and place geotechnical body (6), finish anchoring section (1) and anchor bolt construction;
C) enter operating period of anchor pole;
D) after anchor pole is finished using, utilize anchoring section lockaid gun (3) that the anchoring section lock is separated with the body of rod (2);
E) reclaim the body of rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010295584 CN101949151A (en) | 2010-09-28 | 2010-09-28 | Recyclable locking anchor rod and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010295584 CN101949151A (en) | 2010-09-28 | 2010-09-28 | Recyclable locking anchor rod and construction method thereof |
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| Publication Number | Publication Date |
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| CN101949151A true CN101949151A (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010295584 Pending CN101949151A (en) | 2010-09-28 | 2010-09-28 | Recyclable locking anchor rod and construction method thereof |
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| CN (1) | CN101949151A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477739A (en) * | 2010-11-23 | 2012-05-30 | 王立明 | Embedded recyclable soil nail |
| CN102535460A (en) * | 2012-03-12 | 2012-07-04 | 陶德明 | Method for constructing pressure dispersive type anchor rod |
| CN111622129A (en) * | 2020-06-08 | 2020-09-04 | 浙江万里建设工程有限公司 | Locking anchor bolt and cliff abutment construction method applying same |
| CN112962594A (en) * | 2021-02-22 | 2021-06-15 | 大连理工大学 | Construction method of environment-friendly tension-compression composite dispersed anchor rod |
| CN113616386A (en) * | 2021-06-08 | 2021-11-09 | 上海申淇医疗科技股份有限公司 | Valve clamping system |
| CN115419076A (en) * | 2022-05-30 | 2022-12-02 | 中冶建工集团有限公司 | Construction method for high-pressure rotary spraying recoverable anchor cable support of deep foundation pit |
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| US20070144081A1 (en) * | 2005-12-28 | 2007-06-28 | Kwik Goal Ltd. | Ground anchor system and method for a sports goal and the like |
| CN200949471Y (en) * | 2006-08-01 | 2007-09-19 | 马金志 | Fully recovering anchor bar |
| CN201301448Y (en) * | 2008-11-11 | 2009-09-02 | 武汉市勘测设计研究院 | Clamp-type recoverable anchor rod |
| CN201502061U (en) * | 2009-08-11 | 2010-06-09 | 湖北中建三局建筑工程技术有限责任公司 | Recoverable prestressing anchor rope with double anchor heads |
| CN201801863U (en) * | 2010-09-28 | 2011-04-20 | 张继红 | Recyclable locking type anchor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060068559A (en) * | 2004-12-16 | 2006-06-21 | 주식회사 삼우기초기술 | Hook for inner fixing device in tensioning member removed ground anchor |
| US20070144081A1 (en) * | 2005-12-28 | 2007-06-28 | Kwik Goal Ltd. | Ground anchor system and method for a sports goal and the like |
| CN200949471Y (en) * | 2006-08-01 | 2007-09-19 | 马金志 | Fully recovering anchor bar |
| CN201301448Y (en) * | 2008-11-11 | 2009-09-02 | 武汉市勘测设计研究院 | Clamp-type recoverable anchor rod |
| CN201502061U (en) * | 2009-08-11 | 2010-06-09 | 湖北中建三局建筑工程技术有限责任公司 | Recoverable prestressing anchor rope with double anchor heads |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477739A (en) * | 2010-11-23 | 2012-05-30 | 王立明 | Embedded recyclable soil nail |
| CN102477739B (en) * | 2010-11-23 | 2015-02-11 | 王立明 | Embedded recyclable soil nail |
| CN102535460A (en) * | 2012-03-12 | 2012-07-04 | 陶德明 | Method for constructing pressure dispersive type anchor rod |
| CN111622129A (en) * | 2020-06-08 | 2020-09-04 | 浙江万里建设工程有限公司 | Locking anchor bolt and cliff abutment construction method applying same |
| CN111622129B (en) * | 2020-06-08 | 2021-08-24 | 浙江万里建设工程有限公司 | Locking anchor bolt and cliff abutment construction method applying same |
| CN112962594A (en) * | 2021-02-22 | 2021-06-15 | 大连理工大学 | Construction method of environment-friendly tension-compression composite dispersed anchor rod |
| CN112962594B (en) * | 2021-02-22 | 2022-01-04 | 大连理工大学 | Construction method of environment-friendly tension-compression composite dispersed anchor rod |
| CN113616386A (en) * | 2021-06-08 | 2021-11-09 | 上海申淇医疗科技股份有限公司 | Valve clamping system |
| CN113616385A (en) * | 2021-06-08 | 2021-11-09 | 上海申淇医疗科技股份有限公司 | Valve clamping system |
| CN115419076A (en) * | 2022-05-30 | 2022-12-02 | 中冶建工集团有限公司 | Construction method for high-pressure rotary spraying recoverable anchor cable support of deep foundation pit |
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Application publication date: 20110119 |
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