CN1041988A - Protect the strong pre-power reaming of earth anchor earth anchor worker's method and detection ground rock anchor pulling force and repeat to execute the device that draws pre-power - Google Patents
Protect the strong pre-power reaming of earth anchor earth anchor worker's method and detection ground rock anchor pulling force and repeat to execute the device that draws pre-power Download PDFInfo
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- CN1041988A CN1041988A CN 88107223 CN88107223A CN1041988A CN 1041988 A CN1041988 A CN 1041988A CN 88107223 CN88107223 CN 88107223 CN 88107223 A CN88107223 A CN 88107223A CN 1041988 A CN1041988 A CN 1041988A
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- power
- anchor
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- pulling force
- earth anchor
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Protecting the strong earth anchor PCBA worker genealogy of law is formed in conjunction with worker's methods such as the reaming mode of UR on the hydraulic feed drill and drilling rod grouting way grout injections by the pre-power steel key of PCBA rotation spacing earth anchor.The pressure-bearing frame that detects ground rock anchor pulling force and repeat to execute the device that draws pre-power directly stock outside ground anchor head gripping device, driving hollow draw-bar by jack makes ground anchor head gripping device produce power upwards, and after equalization point records the tension strength of earth anchor from load cell, and the turn pulling force regulates extension rod, forces tension adjustable pole to move down to shore bearing plate to reach and repeats to execute the purpose of drawing pre-power.
Description
The present invention system provides the strong earth anchor PCBA worker method of a kind of guarantor and detects ground rock anchor pulling force and repeat to execute the device person who draws pre-power.
Because earth anchor has great influence for the intensity of the native facility of retaining, so must execute the pre-power of drawing especially, but some geology is more special in Shen mud clay, mud stone, grit, stratum such as husky shale alternating layers often have creep to take place or because of torrential rain, earthquake, and make the lateral earth pressure increase over the ground the pre-power of rock anchor be reduced to below the dangerous tonnage, so, whether must detect ground rock anchor tension strength under the situation of not damaging steel key enough, thereafter repeat again to execute and be pulled to former design standard or become when making the lateral earth pressure increase cause pre-power to increase yield strength to nearly steel key because of ground, adjustment is reduced to former design standard, because the check system of present major part, draw pre-power and regulate pre-power though can repeat to execute, but this kind utilizes awl to beat method, its strength inequality, do not have mechanics basis, not less than can't lock the ground anchor head, intensity that also can't valid certificates ground anchor head simultaneously, sometimes even cause tremendous loss, this case creator grinds to create the strong earth anchor PCBA worker method of a kind of guarantor and have concurrently to detect ground rock anchor pulling force and repeat to execute the device person who draws pre-power.
That is, the present invention's primary and foremost purpose is providing the vast soil of a kind of saving and is executing and draw pre-power accurate, and pre-power can directly be passed to the strong earth anchor PCBA worker method person of guarantor of fixed end.
Another object of the present invention is providing a kind of application of force mean deviation can repeat to execute simultaneously the device person who draws pre-power again at test ground rock anchor pulling force.
Relevant the present invention is for reaching above-mentioned purpose, and technology, means and the effect of using thereof of retouching lifted a preferable possible embodiments now and cooperated that graphic details are as follows, believes the above-mentioned purpose of the present invention, advantage, when can by one deeply and concrete understanding.
Fig. 1 is the present invention's strong earth anchor PCBA worker method of guarantor and traditional type ground rock anchor method analysis chart.
Fig. 2 is the present invention's assembly figure.
Fig. 3 detects ground rock anchor pulling force and repeats to execute the apparatus system analysis chart that draws pre-power for having concurrently of the present invention.
Fig. 4 detects ground rock anchor pulling force and repeats to execute the device sectional view that draws pre-power for having concurrently of the present invention.
Sectional view after Fig. 5 detects ground rock anchor pulling force for having concurrently of the present invention and repeats to execute the device tension earth anchor that draws pre-power.
Fig. 6 detects ground rock anchor pulling force and repeats to execute the sectional view that the device that draws pre-power is adjusted fixing back for having concurrently of the present invention.
At first, before not introducing the present invention, now earlier traditional type earth anchor method must be explained by improvements slightly, see also Fig. 1, the rock anchor boring of traditional type ground is holed with pressure type, drilling rod is elongated to be subjected to influencing of hydraulic feed drill pressure and centrifugal force, steel key becomes paraboloid, execute when drawing pre-power and can't all be passed to the bottom, moreover, the cement that pulling force transmits fixed end (steel key is coated by cement directly) from top to bottom easily chaps, perishable and the easy creep etc. of giving birth to of steel key, owing to must be embedded in the very dark soil layer, cause the vast land area that accounts for again,, and the present invention system utilizes spacing earth anchor (74) to rotate the PCBA rotation spacing pre-power steel key earth anchor (A) that the pre-power steel key of spacing changes head (75) and pre-power steel strand (73) and recovery reaming drilling rod (76) composition, cooperate the construction method of this PCBA rotation spacing pre-power steel key earth anchor (A) to reach the strong earth anchor of a guarantor, as shown in Figure 2, and its construction sequence is as follows:
1. hole more than 10 centimetres to desired depth according to plan.
2. the upright PCBA of group rotates the pre-power steel key of spacing earth anchor, at first on each bundle steel strand (73), be coated with butter (or anticorrisive agent), be inserted in the PE pipe again, and two ends seal with marine glue, wherein an end is locked in and changes on the head (75), and this variation head (75) is to be fixed on reaming bit (74) axostylus axostyle.
3. descend the pre-power steel key of PCBA rotation spacing earth anchor to desired depth.
4. rotate drilling rod with hydraulic feed drill, protect strong drill bit reaming anchor ingot end, rotation up and down, landwaste, fragment are gone out outside the hole with water, and particle is big and heavy to be dashed to go out the person that has come and then stays at the bottom of the hole mix concrete when being in the milk of waiting.
During cement grouting with 0.45: 1 water/binder ratio, with step-down side grouting limit rotation reaming bit, irritate till overflow the aperture, stopped 20 minutes, secondary is executed filling again.
6. the recovery drilling rod at the bottom of the reaming bit indwelling hole, is used with the anchor structure as the spacing earth anchor.
7. preserving period 14 days (emergency works can add the fast dry agent, second day can execute draw).
8. settle bearing plate (5) and ground anchor head gripping device (7) and tighten chock.
9. execute the pre-power of drawing.
10. scribble the PC or the PE plastic cement upper shield of butter in the capping.
11. the concrete capping is in case get rusty.
The strong earth anchor PCBA worker method of guarantor by above-mentioned 11 steps, the strength that rock anchoring fixed end, ground is born is up transmitted (pressure that cement can bear is much larger than bearing pulling force) by the fixed end lowermost end, reaming mode is again up drawn reaming with hydraulic feed drill, drilling rod stretches, can guarantee that anchor hole is vertical, execute when drawing pre-power, strength can directly be passed to the fixed end lowermost end, every bundle steel strand scribble butter and are inserted in the PE pipe, cling with marine glue at two ends, peripheral water can't be infiltrated, can be really permanent corrosion protection and can bring into play the effect of freely extending, and detections that is not subjected to can to use at any time under the time limit restriction the present invention rock anchor puller system test its pulling force and whether reach really to repeat again to execute and draw pre-power, regulate pre-power to design standard.
Detect ground rock anchor pulling force and repeat to execute the device that draws pre-power as for having concurrently of the present invention, please cooperate consult shown in Figure 3, be by jack (1), pressure-bearing frame (2), electronics load cell (3), jack nut (4), convex bearing plate (5), hollow draw-bar (6), anchor head gripping device (7), tension adjustable pole (8), pulling force regulate extension rod (9) and constituted; The usual system of its camber bearing plate (5) defaults between ground anchor head gripping device (7) and ground (6), therefore, and the hole number on the anchor head gripping device (7) and the hole of number such as establish ordinatedly on it; Ground anchor head gripping device (7) is provided with external screw thread (70) and central inner bolt hole (71), and be axially arranged with the steel strand (73) of being consolidated lock with chock (72), these steel strand (73) extend to the pre-power steel key of underground connection rotation spacing through its hole and convex bearing plate (5) and change head (75), please cooperate consult shown in Figure 5; Tension adjustable pole (8) is provided with an external screw thread (80) and an axial multiaspect joint (81), utilize its external screw thread (80) but spiral shell is entreated on the screw (71) among being located at ground anchor head gripping device (7); Hollow draw-bar (6) one ends are provided with joint (60), and the other end is provided with external screw thread (61), utilize within its joint (60) screw thread (600) the ground anchor head gripping device (7) that is spirally connected; Pressure-bearing frame (2) is to be cylindric, and its upper end has a groove (20) and central authorities that one hole (21) is arranged, and utilizes its hole (21) to wear hollow draw-bar (6) periphery; Jack (1) axially upper and lower side is respectively established a projection (10) (11), and cooperating wherein, central hollow portion (12) is arranged on the groove (20) of hollow draw-bar (6) and pressure-bearing frame (2); Electronics load cell (3) is provided with top bracing plate| (31), use its through hole (32) to be placed through on the projection (10) of jack (1), multiplexing jack nut (4) is screwed together in outside the hollow draw-bar (6) screw thread (61) and locates to prevent that electronics load cell (3) from making a clean sweep of out from this; Pulling force is regulated the axial end of extension rod (9) and is provided with one and cooperates face groove (90) more than the multiaspect joint (81) of tension adjustable pole (8), the other end is provided with a multiaspect joint (91), its multiaspect groove (90) of mat is plane tie (81) engagement more than tension adjustable pole (8), makes multiaspect joint (91) expose hollow draw-bar (6) termination; The type body of group formation like this is the person as shown in Figure 2.
When protecting, PCBA desires to execute the pre-power of drawing after strong earth anchor finishes and settle convex bearing plate (5) and ground anchor head gripping device (7) and chock (72) to lock steel strand (73) admittedly, or the competent authority desire is when detecting the earth anchor pulling force and whether meeting former design standard, on outside the earth anchor gripping device (7) sheathed in regular turn as described above after, utilizing jack (1) to drive hollow draw-bar (6) earlier makes ground anchor head gripping device (7) upwards strain steel strand (73), and it is whether enough from the intensity that records the anchor pulling force by electronics load cell (3), or meet former design standard, when the time comes, must cause ground anchor head gripping device (7) and bearing plate (5) to produce a segment distance, as shown in Figure 5, afterwards, the torque wrench cover that can utilize air pressure lock spiral shell machine (10) or be provided with pressure gauge locks in multiaspect joint (91), it drives pulling force adjusting extension rod (9) and tension adjustable pole (8) turn mat, force the lower ends downward of tension adjustable pole (8) and be contacted with bearing plate (5) face and be fixed effect, as shown in Figure 6, reverse order unloads each member and gets final product subsequently.
Learn by above-mentioned, the strong earth anchor PCBA worker method of the present invention's guarantor not only can be saved vast soil and be executed and draw pre-power accurate, pre-power can directly be transmitted fixed end, can be the really permanent corrosion protection of steel strand and can bring into play freely and extend again, simultaneously be not subjected under the time limit restriction at any time can with detect and repeat to execute the device that draws pre-power and cooperate and test pulling force, in order to regulating pre-power to former design standard, and detect and repeat to execute the device that draws pre-power, its repetition pulling force and adjustment mode are very easy, better for all known persons, whether still meet former design standard for the ground rock anchor pulling force that carries in year in addition, can accurately record easily by the present invention, can detect ground rock anchor pulling force and can repeat to execute simultaneously and draw the practical effect of adjusting pre-power etc. and not only reach by the ingenious amino acid of its all member, the strong earth anchor PCBA worker method of the present invention's guarantor really is a unusual pioneer invention again, has value on the incomparable industry, it shows the important document that can meet patent of invention, filing an application in the whence in accordance with the law, and earnestly asks an ancient unit of weight office and give examination and grant quasi patent true feeling moral just.
Claims (2)
1, a kind of guarantor strengthens earth anchor PCBA worker method and has concurrently and detects ground rock anchor pulling force and repeat to execute the device that draws pre-power, it is characterized in that the step of wherein protecting strong earth anchor PCBA worker method is:
(1) holes more than 10 centimetres to desired depth according to plan;
(2) the pre-power steel key of the upright PCBA rotation spacing of group earth anchor is coated with butter and is inserted in the PE pipe on its every bundle steel strand, and two ends seal with marine glue, change head by end locking, is locked in reaming bit and is connected and reclaims the reaming drilling rod and form by changing head again;
(3) PCBA rotates the pre-power steel key of spacing earth anchor to desired depth down;
(4) rotate drilling rod with hydraulic feed drill, drill bit reaming anchor ingot end rotates up and down, and landwaste, fragment are gone out outside the hole with water, and particle heavily can not dash the person that has come and then stays at the bottom of the hole, mix concrete when waiting grouting;
(5) during cement grouting with 0.45: 1 water/binder ratio, with step-down side grouting limit rotation reaming bit, irritate till overflowing the aperture and stopped 20 minutes, secondary is executed filling again;
(6) reclaim drilling rod, reaming bit is kept somewhere at the bottom of the hole, with as the anchor structure usefulness of spacing earth anchor in the future;
(7) preserving period 14 days (emergency works can add the fast dry agent, second day can execute draw);
(8) settle bearing plate and ground anchor head gripping device and tighten chock;
(9) execute the pre-power of drawing;
(10) scribble the PC or the PE plastic cement upper shield of butter in the capping;
(11) the concrete capping is in case get rusty.
2, a kind of having concurrently detected ground rock anchor pulling force and repeated to execute the device that draws pre-power, it is characterized in that member comprises:
One tension adjustable pole, it is provided with an external screw thread and an axial multiaspect joint, use its external screw thread can with ground anchor head gripping device among entreat screwhole spiro bonding;
One hollow draw-bar, its end is provided with joint, and the other end is provided with external screw thread, utilize within its joint screw thread can with the external thread spiro fastening of ground anchor head gripping device;
One pressure-bearing frame is to be cylindric, and there are a groove and an axle center hole in its upper surface, utilizes its axle center hole to wear hollow draw-bar and is placed in outside the ground anchor head gripping device;
One jack, its axial upper and lower side respectively have one fixing to use projection, cooperate its central hollow bulb to be arranged in the groove surface of hollow draw-bar and pressure-bearing frame;
One electronics load cell has top bracing plate| and bottom bracing plate on it, use its through hole can be placed through on the bumping surface of jack, utilizes the jack nut to be screwed together on the hollow draw-bar again and fixes it;
One pulling force is regulated extension rod, and its axial end is provided with a multiaspect joint, and the other end is provided with a multiaspect groove, use more than it face groove can with plane tie engagement more than the tension adjustable pole, and make its multiaspect joint expose hollow draw-bar;
The above-mentioned all unit constructions of mat become a kind of can make by the jack application of force ground anchor head gripping device upwards strain the pre-power of steel strand detection, and regulate the extension rod turn by pulling force and force the tension adjustable pole rotation to move down to shore the detection that reaches fixed effect and repeat to execute the device that draws pre-power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107223 CN1019217B (en) | 1988-10-15 | 1988-10-15 | Anchor block inherent stress bearing working and testing device for anchor block pulling force and repetition inherent stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107223 CN1019217B (en) | 1988-10-15 | 1988-10-15 | Anchor block inherent stress bearing working and testing device for anchor block pulling force and repetition inherent stress |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041988A true CN1041988A (en) | 1990-05-09 |
| CN1019217B CN1019217B (en) | 1992-11-25 |
Family
ID=4834571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88107223 Expired CN1019217B (en) | 1988-10-15 | 1988-10-15 | Anchor block inherent stress bearing working and testing device for anchor block pulling force and repetition inherent stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019217B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445510C (en) * | 2003-09-26 | 2008-12-24 | 安德烈·尼科莱特 | System for fixing an object in the ground by means of a peg |
| CN103232006A (en) * | 2013-05-13 | 2013-08-07 | 蔡青林 | Jack for anchor rod tension meter |
| CN105422131A (en) * | 2015-12-28 | 2016-03-23 | 上海市机械施工集团有限公司 | Longitudinal tensioning device for shield segment and using method of longitudinal tensioning device |
| CN105714823A (en) * | 2016-03-22 | 2016-06-29 | 兰州理工大学 | Recoverable quick-anchoring and body-expanding type anchor rope and construction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725144B (en) * | 2008-10-16 | 2011-07-27 | 高则威 | Device for detecting tension and applying prestress for ground anchor |
-
1988
- 1988-10-15 CN CN 88107223 patent/CN1019217B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445510C (en) * | 2003-09-26 | 2008-12-24 | 安德烈·尼科莱特 | System for fixing an object in the ground by means of a peg |
| CN103232006A (en) * | 2013-05-13 | 2013-08-07 | 蔡青林 | Jack for anchor rod tension meter |
| CN105422131A (en) * | 2015-12-28 | 2016-03-23 | 上海市机械施工集团有限公司 | Longitudinal tensioning device for shield segment and using method of longitudinal tensioning device |
| CN105422131B (en) * | 2015-12-28 | 2018-07-06 | 上海市机械施工集团有限公司 | The device and its application method longitudinally tensed for shield duct piece |
| CN105714823A (en) * | 2016-03-22 | 2016-06-29 | 兰州理工大学 | Recoverable quick-anchoring and body-expanding type anchor rope and construction method |
| CN105714823B (en) * | 2016-03-22 | 2017-08-29 | 兰州理工大学 | Recyclable fast anchor expands body anchor cable and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1019217B (en) | 1992-11-25 |
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