CN212228595U - Anti-floating anchor rod nondestructive test equipment - Google Patents
Anti-floating anchor rod nondestructive test equipment Download PDFInfo
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- CN212228595U CN212228595U CN202021922593.4U CN202021922593U CN212228595U CN 212228595 U CN212228595 U CN 212228595U CN 202021922593 U CN202021922593 U CN 202021922593U CN 212228595 U CN212228595 U CN 212228595U
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Abstract
The application relates to anti-floating anchor rod nondestructive test equipment, it includes the stock owner muscle that awaits measuring, a load steel sheet has been cup jointed on the stock owner muscle, the load steel sheet passes through the crab-bolt to be fixed on the stock owner muscle, load steel sheet both sides are provided with the biography power reinforcing bar, the upside of biography power reinforcing bar is provided with and is used for the top to hold the top of passing the power reinforcing bar and holds detection mechanism. This application has the check out time who accelerates anti-floating anchor, reduces the effect of the detection damage of anti-floating anchor.
Description
Technical Field
The application relates to the field of constructional engineering construction, in particular to nondestructive testing equipment for an anti-floating anchor rod.
Background
In the existing anti-floating anchor rod tension member, one end is anchored on a building bottom plate, and the other end is anchored in a bearing layer of a foundation, and the stress process is to transmit uplift force to grouting through the action between an anchor body steel bar and the grouting; and then the force applied to the grouting body is transferred to the surrounding stable soil body through the friction force between the grouting body and the surrounding soil layer, so that the anti-floating anchor rod with certain uplift resistance is formed, and the anti-floating effect of the anti-floating anchor rod is achieved. Therefore, the anchor rod is widely applied to reinforcement and support of underground foundations and side slopes, and is characterized by large quantity, dense arrangement and complex detection, thereby increasing difficulty for construction.
After the anti-floating anchor rod has been constructed, the anti-pulling bearing capacity that anti-floating anchor rod need be the reinforcing bar in the anchor rod detects, traditional detection technology is for cutting away the 90 degrees crotch reinforcing bar of anchor rod reinforcing bar upper end when detecting, it still needs to use the reinforcing bar of same specification model to newly do the crotch and weld with the anchor rod to wait to finish detecting, this way work load is big, welding crotch required quality is high, check-out time occupies the engineering time long, how accelerate check-out time becomes the key problem that technical staff in the field awaits the opportune moment to solve.
SUMMERY OF THE UTILITY MODEL
In order to accelerate the detection time of the anti-floating anchor rod and reduce the detection damage of the anti-floating anchor rod, the application provides the anti-floating anchor rod nondestructive detection equipment and the construction method.
The application provides an anti-floating anchor rod nondestructive test equipment and a construction method, which adopt the following technical scheme:
the utility model provides an anti-floating anchor rod nondestructive test equipment, includes the stock owner muscle that awaits measuring, a load steel sheet has been cup jointed on the stock owner muscle, the load steel sheet passes through the crab-bolt to be fixed on the stock owner muscle, load steel sheet both sides are provided with the biography power reinforcing bar, the upside of biography power reinforcing bar is provided with and is used for the top to hold the top of biography power reinforcing bar and holds detection mechanism.
Through adopting above-mentioned technical scheme, the staff is using this equipment to carry out the pulling force of stock owner muscle to detect time measuring, can fix the load steel sheet on stock owner muscle earlier through the crab-bolt, hold detection mechanism pulling power reinforcing bar through the top afterwards for power reinforcing bar passes through the load steel sheet with the pulling force and transmits for stock owner muscle, thereby realize using ordinary jack alright detect stock owner muscle, and need not to cut stock owner muscle, simple structure has accelerated the check-out time of anti-floating anchor rod.
Optionally, the jacking detection mechanism comprises a jack arranged on the upper side of the anchor rod main rib, a pressure gauge is arranged on the jack, a tension steel beam is arranged at the top of a piston rod of the jack, the force transmission steel bar penetrates through the periphery of the tension steel beam and is fixed with the tension steel beam through an anchor bolt, and a supporting component used for supporting the jack is arranged on the lower side of the jack.
Through adopting above-mentioned technical scheme, under supporting component's support for the jack can be stable be located the top of stock owner muscle, confirm the load of jack through the manometer reading afterwards, and under supporting component's support afterwards, the piston rod top of jack is held pulling force girder steel upward movement's while and is pulled the biography power reinforcing bar and upwards move, and then transmits the pullout power of jack for stock owner muscle, realizes the detection of stock owner muscle resistance to plucking bearing capacity.
Optionally, the supporting component is including setting up the main girder steel in jack cylinder body bottom, the downside that main girder steel deviates from the jack is provided with two atress girder steels, two the atress girder steel is located respectively the both sides of stock owner muscle, the downside of atress girder steel is provided with a plurality of support girder steels that are used for supporting the atress girder steel, the bottom of supporting the girder steel is established subaerial immediately.
Through adopting above-mentioned technical scheme, the staff only needs to place the support girder steel subaerial when the installation supporting component, will receive the force girder steel afterwards with install on supporting the girder steel, install main girder steel on receiving the force girder steel again to realize supporting component's installation. The supporting component adopts the installation mode, so that the construction is convenient, the supporting component can be detached to be circularly used for multiple times after the detection of the anchor rod main rib is completed, and the turnover utilization rate is high.
Optionally, two reinforcing beams are arranged on the lower side of the stressed steel beam, the reinforcing beams and the stressed steel beam are arranged in an inclined manner, an isosceles triangle is formed between each two reinforcing beams and the horizontal plane, and the stressed steel beam is located at the top point of each reinforcing beam.
Through adopting above-mentioned technical scheme, two atress girder steels that triangle-shaped set up can carry out stable support to the atress girder steel for main girder steel is more stable to the support of jack, thereby promotes holistic suitability and the practicality of check out test set.
Optionally, a support base for supporting the reinforcement beam is arranged at the end of the reinforcement beam, which is away from the stressed steel beam, and the support base is placed on the ground.
Through adopting above-mentioned technical scheme, the area of contact between multiplicable stiffening beam bottom of support base and the ground to make the support of stiffening beam more stable, reinforcing check out test set's detection precision.
Optionally, a displacement sensor is arranged on the anchor bolt.
Through adopting above-mentioned technical scheme, the convenient come-up distance that obtains biography power reinforcing bar and stock owner muscle of staff's accessible displacement sensor to obtain comparatively accurate testing result.
In order to implement the above embodiment, the present application further provides a construction method of the nondestructive testing apparatus for an anti-floating anchor rod, which adopts the following technical scheme:
a construction method of nondestructive testing equipment for an anti-floating anchor rod comprises the following steps,
s1, leveling the base layer: cleaning a field around the anchor rod main rib to be detected to enable the field to be flat and solid;
s2, placing a support base, placing the support base and a skid, and further ensuring that the base layer around the main reinforcement of the test anchor rod is smooth;
s3, placing a support steel beam: placing support steel beams on two sides of a main rib of the anchor rod to be detected, and placing stressed steel beams on the support steel beams on the two sides;
s4, mounting a load steel plate: the central hole of the load-carrying steel plate penetrates through the anchor rod main rib and is fixed on the anchor rod main rib, two force transmission steel bars are additionally arranged on two sides of the load-carrying steel plate, the two anchor bolts are used for fixing the force transmission steel bars to jointly form a force transmission system, and the diameter of the fixed force transmission steel bar is selected from the steel bars with the same diameter and high grade;
s5, setting up a main steel beam: erecting main steel beams perpendicular to the direction of the stressed steel beams on the two sides on the stressed steel beams on the two sides;
s6, erecting a jack: fixing the jack on the main steel beam;
s7, fixing force transmission steel bars on two sides: erecting a tension steel beam with holes at two ends on the jack, enabling force transmission steel bars at two sides to penetrate through the tension steel beam through small holes, and fixing and wedging the force transmission steel bars by using anchor bolts;
s8, grading loading detection: the jack supports a main steel beam providing counter force by using a cyclic loading and unloading method, pulling force is applied to force transmission steel bars on two sides step by step, the bearing capacity and rigidity of the main steel beam meet the requirement of maximum test load, the reading of a pressure gauge is used for controlling each stage of load, and the displacement of an anchor bolt is measured by a displacement sensor;
s9, acceptance detection: and stabilizing each stage of load for 5-10 min in an acceptance test, recording displacement increment, and stabilizing the last stage of load for 10 min.
By adopting the technical scheme, the detection is completed by a force transmission system consisting of the jack, the load steel plate, the tension steel beam, the main steel beam, the support steel beam and the anchor bolt clamping force transmission steel bar, so that the nondestructive detection of the anti-floating anchor rod is ensured; the detection can be completed by the common jack acting on the main steel beam without using a center-penetrating jack, so that the universality is strong; the detection equipment is simple and convenient to install, cutting processing is not needed to be carried out on the pile head reinforcing steel bars of the anti-floating anchor rods, the detection time can be advanced, and the detection efficiency is greatly improved; the detection equipment is convenient to mount and dismount, and can be recycled for multiple times, so that the recycling rate is high.
Optionally, in step S8, after the strength of the anchor reaches 90% of the designed strength level, the anti-floating anchor rod is detected, in order to check whether the axial limit bearing capacity of the anchor rod can meet the designed requirement, and then the anchor rod is loaded to the fixed force transmission steel bar to be damaged, and the axial limit bearing capacity of the anti-floating anchor rod is recorded.
Through adopting above-mentioned technical scheme for the detection of anti-floating anchor rod is more accurate, and the fixed power reinforcing bar diameter of biography simultaneously chooses the reinforcing bar of the same diameter high grade for use, when biography power reinforcing bar destroys, records the axial limit bearing capacity of anti-floating anchor rod, makes the hierarchical loading value in the testing process more reasonable, reduces the potential safety hazard in the testing process simultaneously.
Optionally, in step S8, the primary load is 0.1 times of the pullout resistance of the anchor rod main rib, the graded loading value is 0.50, 0.75, 1.00, 1.20, 1.33, and 1.50 times of the pullout resistance of the anchor rod main rib, and the maximum test load is not more than 0.8 times of the anchor rod main rib limit resistance.
Through adopting above-mentioned technical scheme, provide the main girder steel of counter-force through the support, adopt circulation loading, uninstallation method, exert the drawing force to the stock step by step for the detection of check out test set to anti-floating anchor rod is more accurate and safe.
Optionally, in step S9, if the anchor bolt displacement increment exceeds 1.0mm within 1-10 min, the load of the level should be stabilized for 50min, and the anchor bolt displacement increment is recorded at 15, 20, 25, 30, 45 and 60min, and is loaded to the maximum load test and observed for 10min, and is unloaded to 0.1 time of the anti-pulling bearing capacity of the anchor bolt main rib after the displacement is stabilized.
By adopting the technical scheme, in order to reduce the detection error of the detection equipment, when the anchor bolt is positioned at the increment exceeding 1.0mm, the detection time of the load at the stage needs to be increased, so that the detection accuracy is enhanced.
To sum up, the application comprises the following beneficial technical effects:
1. the detection is completed by a force transmission system consisting of a jack, a load steel plate, a tension steel beam, a main steel beam, a support steel beam and an anchor bolt clamping force transmission steel bar, so that the nondestructive detection of the anti-floating anchor rod is ensured;
2. the detection can be completed by the common jack acting on the main steel beam without using a center-penetrating jack, so that the universality is strong;
3. the detection equipment is simple and convenient to mount, the anti-floating anchor rod pile head reinforcing steel bars do not need to be cut, the detection time can be advanced, and the detection efficiency is greatly improved
4. The detection equipment is convenient to mount and dismount, and can be recycled for multiple times, so that the recycling rate is high.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a schematic flow structure diagram of a detection method according to an embodiment of the present application.
In the figure, 1, anchor rod main ribs; 11. hooking reinforcing steel bars; 2. a jacking detection mechanism; 21. a jack; 211. a tension steel beam; 212. force transmission steel bars; 213. an anchor bolt; 214. loading a steel plate; 215. a displacement sensor; 22. a support assembly; 221. a main steel beam; 222. a stressed steel beam; 223. supporting the steel beam; 224. a reinforcing beam; 225. and a base is supported.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses anti-floating anchor rod nondestructive test equipment. Referring to fig. 1, the nondestructive testing device for the anti-floating anchor rod comprises an anchor rod main rib 1 to be tested, wherein the anchor rod main rib 1 is arranged on the ground, and the upper end part of the anchor rod main rib 1 is provided with a hook steel bar 11 with an angle of 90 degrees; the anchor rod main rib 1 is provided with a jacking detection mechanism 2 for detecting the uplift bearing capacity of the anchor rod main rib 1.
Referring to fig. 1, the jacking detection mechanism 2 includes a jack 21 disposed on the upper side of the anchor rod main rib 1, the jack 21 is disposed perpendicular to the horizontal plane, the jack 21 is located right above the anchor rod main rib 1, and a pressure gauge (not shown) for displaying the pressure of the jack 21 is disposed on the jack 21; a supporting component 22 for supporting the jack 21 is arranged between the jack 21 and the anchor rod main rib 1, the supporting component 22 comprises a main steel beam 221 arranged at the bottom of the cylinder body of the jack 21, the main steel beam 221 is arranged in parallel with the horizontal plane, two stress steel beams 222 arranged in parallel are fixedly connected to the lower side of the main steel beam 221, which is far away from the jack 21, the two stress steel beams 222 are respectively positioned at two sides of the anchor rod main rib 1, the stress steel beam 222 is vertically arranged with the main steel beam 221, two supporting steel beams 223 for supporting the stress steel beams 222 are fixedly connected to the lower side of the stress steel beam 222, the two supporting steel beams 223 are arranged vertically with the horizontal plane, the two supporting steel beams 223 are respectively positioned at two ends of the stress steel beams 222, and the bottom end of the supporting steel beam; two reinforcing beams 224 are fixedly connected to the lower sides of the stressed steel beams 222, the two reinforcing beams 224 are located on the same plane and are oppositely arranged, an isosceles triangle is formed between the two reinforcing beams 224 and the horizontal plane, so that the reinforcing beams 224 and the stressed steel beams 222 are obliquely arranged, and the stressed steel beams 222 are located at the top points of the reinforcing beams 224, so that the stressed steel beams 222 can stably support the stressed steel beams 222, and the main steel beams 221 can more stably support the jack 21; in order to reduce the pressure between the reinforcing beam 224 and the ground, a supporting base 225 for supporting the reinforcing beam 224 is fixedly connected to the end of the reinforcing beam 224 away from the stressed steel beam 222, the two supporting bases 225 are placed on the ground, and the side walls of the supporting bases 225 are fixedly connected with the side walls of the supporting steel beams 223; the main steel beam 221, the stressed steel beam 222, the supporting steel beam 223, the reinforcing beam 224 and the supporting base 225 are all i-shaped steel, and the i-shaped steel has high strength and is convenient to obtain.
Referring to fig. 1, a tension steel beam 211 is fixedly connected to the top of a piston rod of a jack 21, the tension steel beam 211 is perpendicular to a main steel beam 221, two force transmission steel bars 212 arranged in parallel are vertically penetrated through the side wall of the tension steel beam 211, the two force transmission steel bars 212 are respectively arranged at two ends of the tension steel beam 211, and the force transmission steel bars 212 penetrate through the circumferential surface of the tension steel beam 211 and are fixed to the tension steel beam 211 through anchor bolts 213; a load steel plate 214 is sleeved on the anchor rod main rib 1, the load steel plate 214 is fixed on the anchor rod main rib 1 through an anchor bolt 213, the load steel plate 214 is perpendicular to the main steel beam 221, the load steel plate 214 and the tension steel beam 211 are positioned on the same plane, and the lower side of the force transmission steel bar 212 penetrates through the load steel plate 214 and is connected with the load steel plate 214 through the anchor bolt 213; in order to obtain a more accurate detection result, the five anchor bolts 213 are all provided with a displacement sensor 215 for detecting the displacement of the anchor bolt 213. When the staff uses this equipment to carry out the pulling force of stock owner muscle 1 and detects time, can fix load steel sheet 214 on stock owner muscle 1 through crab-bolt 213 earlier, hold 2 pulling biography power reinforcing bar 212 of detection mechanism through the top afterwards for biography power reinforcing bar 212 transmits the pulling force for stock owner muscle 1 through load steel sheet 214, thereby realize using ordinary jack 21 alright detect stock owner muscle 1, and need not to cut stock owner muscle 1, moreover, the steam generator is simple in structure, and the check-out time of anti-floating anchor has been accelerated.
In order to realize the embodiment, the application further provides a construction method of the anti-floating anchor rod nondestructive testing equipment.
A construction method of nondestructive testing equipment for an anti-floating anchor rod comprises the following steps,
s1, leveling the base layer: cleaning a field around the anchor rod main reinforcement 1 to be detected to enable the field to be flat and solid;
s2, placing a support base 225, placing the support base 225 and a skid, and further ensuring that the base layer around the main reinforcement 1 of the test anchor rod is flat;
s3, placing the supporting steel beam 223: placing support steel beams 223 on two sides of the anchor rod main rib 1 to be detected, and placing the stress steel beams 222 on the support steel beams 223 on the two sides;
s4, mounting load steel plate 214: a central hole of a load-carrying steel plate 214 penetrates through an anchor rod main rib 1 and is fixed on the anchor rod main rib 1, two force transmission steel bars 212 are additionally arranged on two sides of the load-carrying steel plate 214, the two anchor bolts 213 are used for fixing the force transmission steel bars 212 to jointly form a force transmission system, and the diameter of the fixed force transmission steel bar 212 is selected from steel bars with the same diameter and high grade;
s5, setting up a main steel beam 221: erecting main steel beams 221 perpendicular to the direction of the two side stress steel beams 222 on the two side stress steel beams 222;
s6, erecting the jack 21: fixing the jack 21 on the main steel beam 221;
s7, fixing force transmission steel bars 212 on two sides: a tension steel beam 211 with holes at two ends is erected on the jack 21, force transmission steel bars 212 at two sides penetrate through the tension steel beam 211 through small holes, and the force transmission steel bars 212 are fixed and wedged tightly by anchor bolts 213;
s8, grading loading detection: after the strength of the anchoring body reaches 90% of the designed strength grade, carrying out anti-floating anchor rod detection, in order to check whether the axial limit bearing capacity of the anchor rod can meet the design requirement, then loading the anchor rod to the fixed force transmission reinforcing steel bar 212 to be damaged, and recording the axial limit bearing capacity of the anti-floating anchor rod; the jack 21 supports the main steel beam 221 providing counter force by using a cyclic loading and unloading method, pulling force is applied to the force transmission steel bars 212 on two sides step by step, the bearing capacity and rigidity of the main steel beam 221 meet the requirement of maximum test load, each stage of load is controlled by reading of a pressure gauge, and the displacement of the anchor bolt 213 is measured by the displacement sensor 215; wherein, the primary load is 0.1 time of the uplift bearing capacity of the anchor rod main rib 1, the grading loading value is 0.50, 0.75, 1.00, 1.20, 1.33 and 1.50 times of the uplift bearing capacity of the anchor rod main rib 1, and the maximum test load is not more than 0.8 time of the ultimate bearing capacity of the anchor rod main rib 1.
S9, acceptance detection: and stabilizing each stage of load in an acceptance test for 5-10 min, recording displacement increment, stabilizing the last stage of load for 10min, wherein if the displacement increment of the anchor bolt 213 exceeds 1.0mm within 1-10 min, the stage of load is stabilized for 50min, recording the displacement increment of the anchor bolt 213 at 15, 20, 25, 30, 45 and 60min, loading to a maximum load test, observing for 10min, and unloading to 0.1 time of the pulling resistance bearing capacity of the anchor bolt main rib 1 after the displacement is stabilized.
The implementation principle of the nondestructive testing equipment and the construction method for the anti-floating anchor rod in the embodiment of the application is as follows: the detection is completed by a force transmission system consisting of the jack 21, the load steel plate 214, the tension steel beam 211, the main steel beam 221, the support steel beam 223 and the anchor bolt 213 clamping force transmission steel bar 212, so that the nondestructive detection of the anti-floating anchor rod is ensured; the detection can be completed by the common jack 21 acting on the main steel beam 221 without using the center-penetrating jack 21, so that the universality is strong; the detection equipment is simple and convenient to install, cutting processing is not needed to be carried out on the pile head reinforcing steel bars of the anti-floating anchor rods, the detection time can be advanced, and the detection efficiency is greatly improved; the detection equipment is convenient to mount and dismount, and can be recycled for multiple times, so that the recycling rate is high.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. The utility model provides an anti-floating anchor rod nondestructive test equipment, includes anchor rod owner muscle (1) that awaits measuring, its characterized in that: a load steel plate (214) is sleeved on the anchor rod main rib (1), the load steel plate (214) is fixed through an anchor bolt (213) on the anchor rod main rib (1), force transmission steel bars (212) are arranged on two sides of the load steel plate (214), and a detection mechanism (2) is arranged on the top of the force transmission steel bars (212) and used for supporting the force transmission steel bars (212).
2. The nondestructive testing device for the anti-floating anchor rod according to claim 1, wherein: jacking detection mechanism (2) is including setting up jack (21) at stock owner muscle (1) upside, be provided with the manometer on jack (21), just the top of jack (21) piston rod is provided with a pulling force girder steel (211), pass power reinforcing bar (212) and pass on pulling force girder steel (211) global through crab-bolt (213) and pulling force girder steel (211) reciprocal anchorage, the downside of jack (21) is provided with supporting component (22) that are used for supporting jack (21).
3. The nondestructive testing device for the anti-floating anchor rod according to claim 2, wherein: support assembly (22) are including setting up main girder steel (221) in jack (21) cylinder body bottom, the downside that main girder steel (221) deviates from jack (21) is provided with two atress girder steels (222), two atress girder steel (222) are located respectively the both sides of stock owner muscle (1), the downside of atress girder steel (222) is provided with a plurality of support girder steels (223) that are used for supporting atress girder steel (222), the bottom of supporting girder steel (223) is established subaerial immediately.
4. The nondestructive testing device for the anti-floating anchor rod according to claim 3, wherein: two reinforcing beams (224) are arranged on the lower side of the stress steel beam (222), the reinforcing beams (224) and the stress steel beam (222) are obliquely arranged, an isosceles triangle is formed between each two reinforcing beams (224) and the horizontal plane, and the stress steel beam (222) is located at the top point of each reinforcing beam (224).
5. The nondestructive testing device for the anti-floating anchor rod according to claim 4, wherein: the end part of the reinforcing beam (224) departing from the stressed steel beam (222) is provided with a supporting base (225) for supporting the reinforcing beam (224), and the supporting base (225) is placed on the ground.
6. The nondestructive testing device for the anti-floating anchor rod according to claim 1, wherein: and a displacement sensor (215) is arranged on the anchor bolt (213).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021922593.4U CN212228595U (en) | 2020-09-04 | 2020-09-04 | Anti-floating anchor rod nondestructive test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021922593.4U CN212228595U (en) | 2020-09-04 | 2020-09-04 | Anti-floating anchor rod nondestructive test equipment |
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| CN212228595U true CN212228595U (en) | 2020-12-25 |
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| CN202021922593.4U Active CN212228595U (en) | 2020-09-04 | 2020-09-04 | Anti-floating anchor rod nondestructive test equipment |
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