CN212865930U - Anti-floating anchor rod anchoring structure - Google Patents
Anti-floating anchor rod anchoring structure Download PDFInfo
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- CN212865930U CN212865930U CN202021061740.3U CN202021061740U CN212865930U CN 212865930 U CN212865930 U CN 212865930U CN 202021061740 U CN202021061740 U CN 202021061740U CN 212865930 U CN212865930 U CN 212865930U
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- 238000007667 floating Methods 0.000 title claims abstract description 48
- 238000004873 anchoring Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 239000004567 concrete Substances 0.000 claims abstract description 44
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Abstract
The utility model discloses an anti-floating anchor rod anchoring structure, which comprises an anti-floating anchor rod, a concrete cushion layer and a water stop sleeve, wherein the anti-floating anchor rod is arranged in the water stop sleeve, the concrete cushion layer is laid on the upper layer of a soil construction body, and a bottom plate is arranged above the concrete cushion layer; the anti-floating anchor rod is pre-embedded in the civil engineering structure and vertically extends upwards to penetrate through the concrete cushion layer to reach the bottom plate; one end of the water stopping sleeve is arranged in the concrete cushion layer and is vertically arranged, and the water stopping sleeve is filled with high-strength non-shrinkage grouting material; the utility model discloses a set up telescopic structural style ends water can avoid carrying out the acceptance of engineering stock again after the whole construction of bottom plate is accomplished, can detect after the bottom plate concrete intensity reaches design value intensity, effectively shortens the detection vacant work period of foundation ditch, and through setting up multilayer structural style, the formation has the anchor structure of preferred water-proof effects simultaneously.
Description
Technical Field
The utility model relates to a building technical field, concretely relates to anti-floating anchor rod anchor structure.
Background
To the bottom plate construction of building, generally need carry out the earthwork and excavate to design elevation after, carry out bed course concrete construction and maintenance, in prior art, generally through the mode with stock and bottom plate monolithic pouring, realize the stock with connection between the bottom plate generally needs to wait 28 days after accomplishing the bottom plate and then checks and accept the detection to some stock.
Because the idle period of the test area is longer, the exposure time of the foundation pit can be greatly increased, and the safety of foundation pit construction is reduced.
In view of the above-mentioned drawbacks, the authors of the present invention have finally obtained the present invention through long-term research and practice.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defects, the utility model adopts the technical scheme that an anti-floating anchor rod anchoring structure is provided, which comprises an anti-floating anchor rod, a concrete cushion layer and a water stop sleeve, wherein the anti-floating anchor rod is arranged in the water stop sleeve, the concrete cushion layer is laid on the upper layer of a soil construction body, and a bottom plate is arranged above the concrete cushion layer; the anti-floating anchor rod is pre-embedded in the civil engineering structure and vertically extends upwards to penetrate through the concrete cushion layer to reach the bottom plate; one end of the water stop sleeve is arranged in the concrete cushion layer and is vertically arranged, and the water stop sleeve is filled with high-strength non-shrinkage grouting material.
Preferably, the water stopping sleeve is provided with at least two water stopping steel sheets, one water stopping steel sheet is arranged in the concrete cushion layer, and the bottom plate is internally provided with at least one water stopping steel sheet.
Preferably, the anti-floating anchor rod comprises an anchor bar and a connecting piece; the anchor bars are formed by more than two anchor bars and less than ten anchor bars and are vertically arranged in parallel; the connecting piece is connected with each anchor bar.
Preferably, the connecting piece is provided with a hoop, and the hoop tightens and fixes the anchor tendon in the horizontal direction at the periphery of the anchor tendon.
Preferably, the connecting piece is arranged as a cylindrical fixed pipe; the anchor bars are annularly and fixedly arranged on the outer circular surface of the fixed pipe.
Preferably, the top end of the anti-floating anchor rod is fixedly connected with a top end steel plate; and the top steel plate is welded on the anchor rib at the top end of the anti-floating anchor rod through perforation plug welding.
Preferably, the outer surface of the anchor bar is brushed with asphalt ship primer, and the number of layers of the asphalt glass fiber cloth wound on the anchor bar is not less than two.
Preferably, the water stopping sleeve is of a cylindrical tubular structure, the water stopping sleeve is of a galvanized steel pipe, the water stopping steel sheet is of a rectangular sheet shape, a welding hole matched with the water stopping sleeve is formed in the middle of the water stopping steel sheet, the water stopping steel sheet is sleeved on the water stopping sleeve through the welding hole, and the water stopping steel sheet and the water stopping sleeve are sealed and fixed.
Preferably, the concrete cushion layer comprises a fine aggregate concrete protective layer, a self-adhesive waterproof coiled material, a cement-based permeable waterproof coating and a bottom plate cushion layer which are sequentially arranged from top to bottom, and the bottom plate cushion layer is made of C15 plain concrete.
Preferably, the stagnant water steel sheet with be provided with the inflation sealing rod between the stagnant water sleeve, the stagnant water steel sheet sets up on the bottom plate bed course, cement base permeability water proof coating certainly bottom plate bed course upper surface warp stagnant water steel sheet covers the laminating extremely on the stagnant water sleeve, cement base permeability water proof coating goes up to lay self-adhesion waterproofing membrane stagnant water steel sheet with the right angle region of hookup location sets up between the stagnant water steel sheet stagnant water sleeve the inflation sealing rod to adopt the oleamen caulking.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a set up telescopic structural style ends water can avoid carrying out the acceptance of engineering stock again after the whole construction of bottom plate is accomplished, can detect after the bottom plate concrete intensity reaches design value intensity, effectively shortens the detection vacant work period of foundation ditch, and through setting up multilayer structural style, the formation has the anchor structure of preferred water-proof effects simultaneously.
Drawings
Fig. 1 is a construction flow chart of the engineering anchor rod;
fig. 2 is a structural view of the anti-floating anchor anchoring structure;
FIG. 3 is a cross-sectional view of the water stop sleeve;
fig. 4 is a connection view of the concrete underlayment.
The figures in the drawings represent:
1-anti-floating anchor rod; 2-concrete cushion layer; 3-a water stopping sleeve; 4-constructing a building body; 5-a bottom plate; 6-water stopping steel sheet; 7-top steel plate; 8-expansion water stop strip; 11-anchor bars; 12-a connector; 21-fine stone concrete protective layer; 22-self-adhesive waterproof roll material; 23-cement based permeable waterproof coating; 24-bottom plate cushion layer.
Detailed Description
The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.
Example one
The construction method of the ultra-large area anti-floating anchor rod comprises the following steps:
s1, arranging a test anchor rod;
s2, excavating earth, and carrying out a limit uplift test of the test anchor rod;
and S3, setting the engineering anchor rod after the test anchor rod is qualified.
The engineering stock is including detecting stock and construction stock, it is used for accomplishing to detect the stock carry out the acceptance and verification of resistance to plucking bearing capacity after setting up of engineering stock.
In this embodiment, the engineering anchor is a permanent anti-floating anchor, and the total number is 758. The anchor bars of the engineering anchor rod are HRB500 steel bars 3D 28. The engineering anchor rod safety level is one level, the anti-pulling safety coefficient of the anchoring body of the engineering anchor rod is 2.2, and the anti-corrosion protection level is I level. The bonding strength between the engineering anchor rods and the ground layer is divided into two regions, so that two engineering anchor rods are arranged, namely MG1 and MG 2.
The diameter of the engineering anchor rod MG1 is 200mm, the characteristic value of the uplift bearing capacity of the anti-floating single anchor rod is 450kN, and the engineering anchor rod MG1 enters the middle stroke sandstone layer to be not less than 2.9 m; the diameter of the engineering anchor rod MG2 is 250mm, the characteristic value of the uplift bearing capacity of the anti-floating single anchor rod is 380kN, and the engineering anchor rod MG2 enters the middle stroke sandstone layer and is not less than 4.1 m. When the engineering anchor rod is positioned on a soil layer, rust removal and asphalt ship primer brushing is adopted, and the number of layers of asphalt glass fiber cloth wrapped by the asphalt glass fiber cloth is not less than two.
The anchor rod test requirements of the test anchor rod are specified as follows:
and (4) before the engineering anchor rod is formally constructed, testing and detecting in the step S1 are carried out to determine the bearing capacity of the anchor rod, wherein the bearing capacity of the anchor rod is determined by a limit uplift test. The maximum loading capacity of the limit uplift test of the test anchor rod is not less than 2 times of the design load of the engineering anchor rod. In this embodiment, the number of the test anchors is 6.
The anchor bars of the anchor rods are HRB500 steel bars 3D28, and the pulling force of the anchor rods is 1.5 times of the designed characteristic value of the uplift bearing capacity of the anchor rods. The detection anchor rods are 5% of the total number of the engineering anchor rods and not less than 6.
In the prior art, the test anchor rod is generally arranged in a foundation pit and needs to be excavated to a designed elevation by earth for construction. In this embodiment, according to the geological survey report, a point with the same or close geology or the worst geological condition can be selected for the test anchor rod construction, the dead weight of the ground to the bottom plate part needs to be deducted when the anchor rod is stressed, the ground to the bottom plate part cannot be grouted, and the soil body friction is avoided. That is, the test anchor is installed outside the foundation pit at the installation point, so that the earth excavation and the installation of the test anchor can be simultaneously carried out, and the detection period of the vacant 28 days is shortened.
Specifically, during experimental stock construction, ensure experimental stock is put into perpendicularly the stock of setpoint is downthehole, and stock hole upper portion is provided with the cavity region the same with the foundation ditch degree of depth to the simulation is in the foundation ditch the operating condition of engineering stock guarantees simultaneously the income rock depth of experimental stock with actual income rock depth during engineering stock construction is unanimous, right anticorrosive and isolation measure is done to the non-income rock part of experimental stock. After construction is completed, a surrounding baffle is erected on the periphery of the anchor rod hole, and hole collapse of the anchor rod hole due to load action is avoided. And after the detection is finished, backfilling the anchor rod hole by adopting sand or mortar. When the limit uplift test of the test anchor rod is carried out, the dead weight of the anchor bar needs to be deducted.
In step S3, 38 detection bolts are set according to the calculation requirement for acceptance detection. And when the engineering anchor rod is constructed, the water stopping sleeve is additionally arranged, and when the bottom plate is constructed, the water stopping sleeve and the bottom plate are poured into a whole. And when the strength of the bottom plate reaches 90%, the acceptance detection of the detection anchor rod can be carried out. After the detection is qualified, the high-strength non-shrinkage grouting material is adopted to plug in the water stopping sleeve, and a plugging port is processed, so that the construction period of 28 sky places required to be set due to the fact that the detection of the anchor rod needs to be waited for in the prior art is shortened again.
Before the construction of the engineering anchor rod, the cushion layer construction is carried out according to the technical regulation requirements strictly, and the thickness is 60 mm-100 mm. And after the strength is reached, carrying out the construction of the engineering anchor rod. If engineering stock equipment is in the time of the condition, have and choose the pneumatic drill pore-forming earlier for use, avoid the phenomenon of the interior mud crossflow of foundation ditch. If the time condition of the test anchor rod allows, construction can be further carried out in advance; the detection requirements can be met before foundation pit enclosure construction or earth excavation. The test anchor rod is preferably protected in a hole forming mode during construction, hole collapse is prevented, a soil body is prevented from being bonded with the stress part of the test anchor rod, and test data are prevented from being influenced. And the dead weight of the anchor bar needs to be deducted during calculation. The anchor rod is detected and then the anchor rod image and the ground structure image are checked, positions which are not suitable for detection operation, such as structural columns, walls, water collecting pits, elevator pits, civil air defense doors, ramps, stairs and the like, need to be avoided in a key mode, and the water stopping sleeve needs to be cleaned up before being blocked. The water stopping sleeve is sealed and constructed before the bottom plate post-cast strip is sealed.
Preferably, the grouting material is high-strength non-shrinkage or high-strength micro-expansion grouting material, and is not suitable for concrete.
The construction method of the ultra-large area anti-floating anchor rod greatly reduces the detection vacant construction period of the foundation pit and shortens the whole construction period by the parallel mode of the test anchor rod construction and the foundation pit enclosure construction or the earthwork excavation construction; through adopting the telescopic structural style of stagnant water avoids among the prior art must carrying out the acceptance of engineering stock again after the bottom plate construction is accomplished, can detect after the bottom plate concrete strength reaches design value intensity, effectively shortens the detection vacant work period of foundation ditch.
Example two
As shown in fig. 1, fig. 1 is a construction flow chart of the engineering anchor rod; the concrete construction mode of engineering stock does:
s301, checking a graph;
checking the engineering anchor rod drawing and the building structure drawing in a sleeving manner, selecting the engineering anchor rod positioned in a large interval when selecting the detection anchor rod, and avoiding the positions of a structure or a descending plate and the like to provide a space for the installation and operation of detection equipment;
s302, determining the detection number;
according to the drawing and the specification requirement, 38 detection anchor rods need to be selected for detection, construction operation is considered, and meanwhile, 5 additional standby detections can be selected.
S303, drilling by a drilling machine;
s304, processing and manufacturing anchor bars;
during the anchor bar processing preparation of construction stock, the top is 90 and buckles and handles, and it needs to adopt mechanical equipment to draw to detect the stock, and the top anchor bar is not buckled. The detection anchor rod is preferably 850mm higher than the structural surface of the bottom plate.
S305, anchoring, grouting and grout supplementing;
s306, embedding a water stop sleeve;
s307, waterproofing and structural construction;
s308, checking and accepting the bearing capacity;
and according to the requirement of acceptance bearing capacity, the detection can be carried out after the strength of the bottom plate concrete reaches the strength of the design value.
S30g, cleaning and sealing the inside of the water stop sleeve;
when the interior of the water stopping sleeve is cleaned, the self-sucking pump pumps out waste water after the high-pressure water gun is adopted for flushing. After cleaning, no water is accumulated, H-60 high-strength shrinkage-free grouting material is adopted for construction plugging, and observation is carried out for 14 days after plugging. The sealing plate anchoring is not suitable when the observation is shallow, and the condition of leakage needs to be detected.
And S310, anchoring by end sealing.
And (4) prefabricating an end anchor plate project. And (4) performing perforation plug welding on anchor bars of the anchor rod, and performing anticorrosive and antirust treatment.
EXAMPLE III
Through the specific construction mode of the second embodiment, an anti-floating anchor rod anchoring structure is formed. As shown in fig. 2, fig. 2 is a structural view of the anti-floating anchor anchoring structure. The anti-floating anchor rod anchoring structure comprises an anti-floating anchor rod 1, a concrete cushion layer 2 and a water stop sleeve 3, wherein the anti-floating anchor rod 1 is arranged in the water stop sleeve 3, the concrete cushion layer 2 is laid on the upper layer of a soil construction body 4, and a bottom plate 5 is arranged above the concrete cushion layer 2; the anti-floating anchor rods 1 are pre-buried in the soil construction building body 4 and vertically extend upwards to penetrate through the concrete cushion layer 2 to reach the bottom plate 5; one end of the water stopping sleeve 3 is arranged in the concrete cushion layer 2 and is vertically arranged. And the water stopping sleeve 3 is filled with high-strength non-shrinkage grouting material, so that the anti-floating anchor rod 1 is fixed in the water stopping sleeve 3.
The waterproof structure is characterized in that at least two waterproof steel sheets 6 are arranged on the waterproof sleeve 3, one waterproof steel sheet 6 is arranged in the concrete cushion layer 2, and at least one waterproof steel sheet 6 is arranged in the bottom plate 5.
The anti-floating anchor rod 1 comprises anchor bars 11 and connecting pieces 12; the anchor bars 11 are formed by more than two anchor bars 11 and less than ten anchor bars 11 and are vertically arranged in parallel; the connecting member 12 is used for connecting positions between the anchor bars 11 and ensuring that the anchor bars 11 are vertically arranged in parallel. The connecting member 12 may be configured as a binding band, and the binding band may be used to bind and fix the anchor bar 11 bundle in the horizontal direction at the periphery of the anchor bar 11 bundle.
As shown in fig. 3, fig. 3 is a cross-sectional view of the water stop sleeve; preferably, the connecting member 12 may be configured as a cylindrical fixed pipe; the anchor bars 11 are annularly and fixedly arranged on the outer circular surface of the fixed pipe, so that the position of each anchor bar 11 is fixed, the displacement between the anchor bars 11 is reduced, and the anchoring degree is ensured. The fixed pipe is provided with a plurality of pipes.
The top end of the anti-floating anchor rod 1 is fixedly connected with a top end steel plate 7; and the top steel plate 7 is welded on the anchor rib 11 at the top end of the anti-floating anchor rod 1 through perforation plug welding. The thickness of the top end steel plate 7 is larger than the diameter of the anchor bar 11 at the head of the anti-floating anchor rod 1.
The outer surface of the anchor bar 11 is brushed with asphalt ship primer, and the number of layers of the asphalt glass fiber cloth wound on the anchor bar 11 is not less than two.
As shown in fig. 4, fig. 4 is a connection view of the concrete underlayment; concrete bed course 2 includes from last to the fine aggregate concrete protective layer 21, self-adhesion waterproofing membrane 22, cement base permeability water proof coating 23 and the bottom plate bed course 24 that sets gradually down, bottom plate bed course 24 adopts the plain concrete of C15, and its main action is water proof, prevents frostbite, fine aggregate concrete protective layer 21 is used for the protection self-adhesion waterproofing membrane 22 cement base permeability water proof coating 23 and bottom plate bed course 24 avoids 5 during the work progress of bottom plate right self-adhesion waterproofing membrane 22 cement base permeability water proof coating 23 and the destruction that bottom plate bed course 24 structure was shone into.
A sealing element is arranged between the water stop steel sheet 6 and the water stop sleeve 3, the sealing layer is an expansion water stop strip 8, specifically, the water stop steel sheet 6 is arranged on the bottom plate cushion layer 24, the cement-based permeable waterproof coating 23 is firstly sprayed at the connecting position between the water stop steel sheet 6 and the bottom plate cushion layer 24, the cement-based permeable waterproof coating 23 is covered and attached to the water stop sleeve 3 from the upper surface of the bottom plate cushion layer 24 through the water stop steel sheet 6 so as to ensure the sealing connection between the water stop steel sheet 6 and the bottom plate cushion layer 24, and then the self-adhesive waterproof coiled material 22 is laid on the cement-based permeable waterproof coating 23, so that the waterproofness is further improved.
Because the connection position of stagnant water steel sheet 6 with stagnant water sleeve 3 has the right angle region, for improving the water-proof effects in this position stagnant water steel sheet 6 with stagnant water sleeve 3's connection position sets up inflation sealing rod 8 to adopt the mode of oleamen caulking to strengthen inflation sealing rod 8's sealed effect.
Further, the fine aggregate concrete protective layer 21 is arranged to protect the self-adhesive waterproof roll 22, the cement-based permeable waterproof coating 23 and the expansion water stop strip 8 from the relative position between the water stop steel sheets 6, so that the water stop sleeve 3 connecting structure with a high waterproof effect is formed.
The utility model discloses a set up the structural style of stagnant water sleeve 3 can avoid carrying out the acceptance of engineering stock again after 5 whole constructions of bottom plate are accomplished, can detect after 5 concrete intensity of bottom plate reach design value intensity, effectively shortens the detection idle work period of foundation ditch, and through setting up the multilayer structural style, the formation has the anchor structure of preferred water-proof effects simultaneously.
The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An anti-floating anchor rod anchoring structure is characterized by comprising an anti-floating anchor rod, a concrete cushion layer and a water stopping sleeve, wherein the anti-floating anchor rod is arranged in the water stopping sleeve; the anti-floating anchor rod is pre-embedded in the civil engineering structure and vertically extends upwards to penetrate through the concrete cushion layer to reach the bottom plate; one end of the water stop sleeve is arranged in the concrete cushion layer and is vertically arranged, and the water stop sleeve is filled with high-strength non-shrinkage grouting material.
2. An anti-floating anchor rod anchoring structure according to claim 1, wherein at least two water-stopping steel sheets are provided on said water-stopping sleeve, one of said water-stopping steel sheets is provided in said concrete cushion, and at least one of said water-stopping steel sheets is provided in said bottom plate.
3. The anti-floating anchor anchoring structure according to claim 1, wherein the anti-floating anchor includes an anchor bar and a connecting member; the anchor bars are formed by more than two anchor bars and less than ten anchor bars and are vertically arranged in parallel; the connecting piece is connected with each anchor bar.
4. An anti-floating anchor anchoring structure according to claim 3, wherein said connecting member is provided as a collar which tightens in a horizontal direction around said tendon bundle to fix said tendon bundle.
5. An anti-floating anchor anchoring structure according to claim 3, wherein the connecting member is provided as a cylindrical fixed pipe; the anchor bars are annularly and fixedly arranged on the outer circular surface of the fixed pipe.
6. The anti-floating anchor rod anchoring structure according to claim 2, wherein a top steel plate is fixedly connected to a top end of the anti-floating anchor rod; and the top steel plate is welded on the anchor rib at the top end of the anti-floating anchor rod through perforation plug welding.
7. An anchoring structure for an anti-floating anchor rod according to claim 3, wherein said anchor bar has an outer surface coated with an asphalt ship primer, and said anchor bar is wrapped with said asphalt glass fiber cloth in a number of layers not less than two.
8. The anchoring structure of an anti-floating anchor rod according to claim 6, wherein the water stopping sleeve is a cylindrical tubular structure, the water stopping sleeve is made of a galvanized steel pipe, the water stopping steel sheet is rectangular sheet-shaped, a welding hole matched with the water stopping sleeve is formed in the middle of the water stopping steel sheet, the water stopping steel sheet is sleeved on the water stopping sleeve through the welding hole, and the water stopping steel sheet and the water stopping sleeve are sealed and fixed.
9. The anchoring structure of an anti-floating anchor rod according to claim 8, wherein the concrete cushion layer comprises a fine stone concrete protective layer, a self-adhesive waterproof roll, a cement-based permeable waterproof coating and a bottom plate cushion layer which are sequentially arranged from top to bottom, and the bottom plate cushion layer is made of C15 plain concrete.
10. An anti-floating anchor rod anchoring structure according to claim 9, wherein an expansion water stop strip is provided between the water stop steel sheet and the water stop sleeve, the water stop steel sheet is provided on the bottom plate cushion layer, the cement-based permeable waterproof coating is attached to the water stop sleeve from the upper surface of the bottom plate cushion layer through the water stop steel sheet in a covering manner, the cement-based permeable waterproof coating is provided with the self-adhesive waterproof roll, the expansion water stop strip is provided in a right-angle region at a connection position between the water stop steel sheet and the water stop sleeve, and an ointment is used for caulking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061740.3U CN212865930U (en) | 2020-06-10 | 2020-06-10 | Anti-floating anchor rod anchoring structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061740.3U CN212865930U (en) | 2020-06-10 | 2020-06-10 | Anti-floating anchor rod anchoring structure |
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| Publication Number | Publication Date |
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| CN212865930U true CN212865930U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021061740.3U Expired - Fee Related CN212865930U (en) | 2020-06-10 | 2020-06-10 | Anti-floating anchor rod anchoring structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960777A (en) * | 2022-06-07 | 2022-08-30 | 中国五冶集团有限公司 | Waterproof node structure at top of anti-floating anchor rod and construction method |
| CN115217108A (en) * | 2022-08-27 | 2022-10-21 | 中国建筑第二工程局有限公司 | Anti-floating anchor rod with cage core bag and construction process thereof |
-
2020
- 2020-06-10 CN CN202021061740.3U patent/CN212865930U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960777A (en) * | 2022-06-07 | 2022-08-30 | 中国五冶集团有限公司 | Waterproof node structure at top of anti-floating anchor rod and construction method |
| CN115217108A (en) * | 2022-08-27 | 2022-10-21 | 中国建筑第二工程局有限公司 | Anti-floating anchor rod with cage core bag and construction process thereof |
| CN115217108B (en) * | 2022-08-27 | 2024-03-12 | 中国建筑第二工程局有限公司 | Anti-floating anchor rod with cage core bag and construction process thereof |
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