CN116950143A - Anti-floating anchor rod anti-disturbance construction structure and method - Google Patents
Anti-floating anchor rod anti-disturbance construction structure and method Download PDFInfo
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- CN116950143A CN116950143A CN202310837280.0A CN202310837280A CN116950143A CN 116950143 A CN116950143 A CN 116950143A CN 202310837280 A CN202310837280 A CN 202310837280A CN 116950143 A CN116950143 A CN 116950143A
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- floating anchor
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- pile casing
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- 238000007667 floating Methods 0.000 title claims abstract description 121
- 238000010276 construction Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims description 13
- 239000002689 soil Substances 0.000 claims abstract description 67
- 238000007599 discharging Methods 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 10
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 239000004567 concrete Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The application discloses an anti-disturbance construction structure of an anti-floating anchor rod, which comprises a pile casing, wherein the center of the pile casing is overlapped with the positioning center of the anti-floating anchor rod, a foundation cushion layer is arranged around the pile casing, the top of the pile casing is higher than the foundation cushion layer, and filling blocks are arranged in independent foundation pits on the foundation cushion layer so that the whole plane formed by the foundation cushion layer and the filling blocks is level. The application also discloses an anti-disturbance construction method of the anti-floating anchor, which comprises the following steps: s1: excavating earthwork; s2: positioning a protective cylinder; s3: pouring and curing a foundation cushion layer; s4: filling up an independent foundation pit; s5: laying a protective film layer; s6: installing a soil discharging bucket; s7: hole forming construction of the anti-floating anchor rod; s8: the anchor rod drilling machine is removed, and a soil unloading bucket is lifted to unload soil; s9: hoisting anchor rod reinforcing steel bars and grouting; s10: drilling and removing the pile head; s11: and (5) node waterproof construction. The application can effectively solve the problems of uneven height of the anchor pile construction site, cleaning of the earthwork of the anchor pile and the like, and can be widely applied to the field of building construction.
Description
Technical Field
The application relates to the field of building construction, in particular to an anti-disturbance construction structure and method for an anti-floating anchor rod.
Background
Anti-floating anchors are widely used in the construction field and are generally arranged in buildings with basements to resist the buoyancy of the building caused by the sewage. The anti-floating anchor rod is generally formed by adopting a long spiral drilling machine, the specification of the anchor rod is 10 cm-35 cm, grouting is carried out after the hoisting of the anchor rod reinforcing steel bar is completed, and the grouting material is mortar or cement paste.
In actual construction, the anti-floating anchor rod is generally implemented before pouring a foundation cushion layer, and when a foundation is excavated, the steel bars of the anchor section of the anti-floating anchor rod, which are leaked outwards, can be repeatedly bent and disturbed by machines such as an excavator, so that a certain proportion of the steel bars of the anchor rod can be broken, and the construction quality of the anti-floating anchor rod is seriously influenced. A loose soil layer with a certain thickness is formed on the periphery of an anti-floating anchor rod in the mechanical hole forming of the anchor rod, and overflow slurry is easy to fully infiltrate into the loose soil layer during the grouting construction of the anchor rod in the process of superfilling, the slurry concretes the pile head and surrounding soil, and the pile head of the anti-floating anchor rod is easy to damage after the foundation excavation is carried out. The destroyed anti-floating anchor pile head is difficult to effectively implement node water resistance; in addition, cracks formed by the damage of the pile head of the anti-floating anchor rod can further develop, and the anchor rod reinforcing steel bars with a certain length are exposed to underground water, so that the durability of the anti-floating anchor rod is reduced.
Because the anti-floating anchor rod is implemented before the foundation bed layer is poured, the anti-floating anchor rod is required to be constructed after the foundation bed layer is poured in a design file, the problem of disturbance of the anti-floating anchor rod can be thoroughly solved after the procedure is adjusted, but the construction of the anti-floating anchor rod still faces a new problem, firstly, after the foundation bed layer is constructed, the situation that the site has high and low fall exists due to the existence of an independent foundation, and the displacement of anchor rod construction equipment is not facilitated; secondly, the pile slag soil formed by the anti-floating anchor rod construction is difficult to clean, the manual cleaning efficiency is low, and project progress control is not facilitated; thirdly, the problem of discharging the slurry for cleaning the hole after the anchor rod is drilled and the slurry returned from the hole opening during grouting is difficult to treat, so that the pollution of the cushion layer is easy to cause, and the control of the civilized construction on the construction site is not facilitated.
Aiming at the problems of the traditional anti-floating anchor construction, the technical scheme of the anti-floating anchor construction is provided, so that the problems of uneven construction site of the anti-floating anchor, cleaning of earthwork of the anti-floating anchor and the like are effectively solved, and the problems of low overall engineering quality of the anti-floating anchor caused by anchor rod reinforcement disturbance and pile head damage of the anti-floating anchor are avoided.
Disclosure of Invention
The application aims to overcome the defects of the background technology, and provides an anti-disturbance construction structure and method for an anti-floating anchor rod, which have the advantages of simple structure, convenient operation and simple construction steps, effectively solve the problems of uneven construction site of an anchor rod pile, cleaning of earthwork of the anchor rod and the like, and have high engineering practical value.
The application provides an anti-disturbance construction structure of an anti-floating anchor, which comprises a pile casing longitudinally inserted into a foundation after foundation earthwork is cleaned, wherein the center of the pile casing is overlapped with the positioning center of the anti-floating anchor, a foundation cushion layer is arranged around the pile casing, the top of the pile casing is higher than the poured foundation cushion layer, and filling blocks are arranged in independent foundation pits on the foundation cushion layer so that the plane formed by the foundation cushion layer and the filling blocks is flush with the whole body.
In the technical scheme, steel plates are arranged on the top surfaces of the foundation mat layer and the filling blocks, and the plane shape and the size of the steel plates are consistent with the overall shape and the size of the foundation mat layer.
In the technical scheme, the protective cylinder is circumferentially provided with the soil unloading bucket which surrounds the protective cylinder, a cavity matched with the side wall of the protective cylinder is arranged in the middle of the soil unloading bucket, and the bottom plate, the circumferential side wall and the side wall of the soil unloading bucket jointly form a material containing space.
In the above technical scheme, the soil discharging bucket comprises two symmetrically arranged material containing basins, the inner side of each material containing basin is provided with a corresponding groove, the two grooves are spliced to form a cavity, a material containing space is formed by the bottom plate of the material containing basin, the circumferential side wall and the side wall of the groove together, and the opposite side walls of the two material containing basins are fixedly connected.
In the technical scheme, the edge of the top of the protective cylinder is provided with the protective cylinder fixing nail in an inverted J shape, the upper edge of the protective cylinder is hooked by the hook of the protective cylinder fixing nail, and the straight rod of the protective cylinder fixing nail is longer than the protective cylinder.
In the technical scheme, the top of the filling block is provided with a pit, the bottom surface of the pit is provided with an inverted U-shaped handle ring, and the soil discharging bucket is provided with a plurality of hanging rings along the circumferential direction.
In the technical scheme, a protective film layer is arranged on the foundation cushion layer around the pile casing.
The application also provides an anti-disturbance construction method of the anti-floating anchor, which comprises the following steps:
s1: excavating foundation earthwork; s2: measuring and paying off, positioning an anti-floating anchor rod, and positioning and installing a pile casing; s3: pouring and curing a foundation cushion layer; s4: filling blocks and steel plates fill up independent foundation pits; s5: laying a protective film layer on the foundation cushion layer; s6: installing a soil discharging bucket; s7: positioning an anchor rod drilling machine, and performing anti-floating anchor rod pore-forming construction; s8: the anchor rod drilling machine is removed, and a soil unloading bucket is lifted to unload soil; s9: hoisting anchor rod reinforcing steel bars and grouting an anti-floating anchor rod; s10: after grouting maintenance is completed, the pile head of the anti-floating anchor rod is subjected to over-grouting chiseling removal treatment; s11: and (5) waterproof construction of the pile head node of the anti-floating anchor rod.
In the above technical solution, the specific process of step S6 is as follows: s61, adopting a hoisting machine to install, and paying attention to the fact that the side, with the smallest distance from the cavity to the side wall of the soil unloading bucket, is close to the jumbolter; s62, placing one of the material containing basins on an anti-floating anchor to be constructed, clamping half of the protective cylinder into a groove of the material containing basin, and installing the other material containing basin in the same way; and S63, fixing the opposite surfaces of the two material containing basins after the installation is completed.
In the above technical solution, in step S10, the pile head of the overirrigated anti-floating anchor rod is manually chiseled, and the pile head surface of the treated anti-floating anchor rod is lower than the surface of the foundation mat layer, so as to form a concave structure.
The anti-disturbance construction structure and the method for the anti-floating anchor rod have the following beneficial effects:
according to the application, by designing the structure required by the construction of the anti-floating anchor rod, the problems that mechanical equipment is difficult to move and the soil cleaning efficiency is low due to the field height difference are solved, the overall construction efficiency and quality of the anti-floating anchor rod are greatly improved, and the anti-floating anchor rod is mainly reflected in the following three aspects:
1. through filling block and steel sheet cooperation, the high differential problem that exists in construction place has been solved, and anti-floating anchor construction machinery removes smoothly, has improved anti-floating anchor efficiency of construction.
2. The soil discharging bucket is arranged, so that the earthwork and the mud cleaning difficulty during construction of the anti-floating anchor rod are greatly reduced, pile residue soil can be transported in time, and the image of civilized construction is also built while the construction efficiency is improved.
3. Through the adjustment procedure, disturbance of the anti-floating anchor bar and damage to the pile head caused by the disturbance are avoided, and the quality of the anti-floating anchor bar construction engineering and the waterproof effect of the pile head are improved.
Drawings
FIG. 1 is an overall block diagram of an anti-disturbance construction structure of an anti-floating anchor of the present application;
FIG. 2 is a schematic structural view of a casing in an anti-disturbance construction structure of an anti-floating anchor according to the present application;
FIG. 3 is a view showing the construction of a single basin belonging to a soil discharge bucket in the anti-disturbance construction of the anti-floating anchor of the present application;
FIG. 4 is a schematic view of the construction of the anti-disturbance construction structure of the anti-floating anchor of the present application;
FIG. 5 is a schematic diagram of the spatial position structure of a soil discharging bucket and a jumbolter in the anti-floating anchor anti-disturbance construction structure of the application;
FIG. 6 is a schematic structural view of filler blocks in the anti-disturbance construction structure of the anti-floating anchor of the present application;
FIG. 7 is a schematic flow chart of the anti-disturbance construction method of the anti-floating anchor.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, which should not be construed as limiting the application.
Referring to fig. 1, the anti-disturbance construction structure of the anti-floating anchor rod of the application mainly comprises a filling block 3, a steel plate (not shown in the figure), a soil unloading bucket 4, a pile casing 1 for positioning the anti-floating anchor rod construction, a protective film layer (not shown in the figure) and the like; the filling blocks 3 are matched with the steel plates for filling the independent foundation pits 21, so that the problem of the field height difference of the foundation cushion layer 2 is solved; the soil discharging bucket 4 with a special structure is arranged at two sides of an anti-floating anchor rod hole (not shown in the figure) to receive dregs formed by the anti-floating anchor rod hole, the anchor rod drilling machine 7 is arranged at one side of the soil discharging bucket 4 for processing the anti-floating anchor rod hole, and the soil discharging bucket 4 is lifted by a tower crane (not shown in the figure); the pile casing 1 is longitudinally inserted into the foundation 6 after the foundation earthwork is cleaned, and the pile casing 1 is installed to be higher than the surface of the foundation cushion layer 2, so that the grouting quality of the anchor rod is ensured.
1. Anti-disturbance construction structure of anti-floating anchor rod
As shown in FIG. 2, in this embodiment, the pile casing 1 is fixed by pile casing fixing nails 5, the pile casing 1 is used for positioning the anchor rod after the cushion layer is poured, the pile casing 1 is prepared by cutting PVC pipes on site, the thickness of the side wall of the pile casing 1 is 2-5 mm, the length of the pile casing 1 is 18-25 cm, and the inner diameter of the pile casing 1 is slightly larger than the design diameter of the (2-4 cm) anti-floating anchor rod. The pile casing 1 is used before pouring the foundation mat layer 2, after foundation earthwork cleaning is completed, the anti-floating anchor rod is measured and positioned, the circle center of the pile casing 1 coincides with the positioning center point of the anti-floating anchor rod, the pile casing 1 is positioned and installed, and pile casing fixing nails 5 can be used for fixing to avoid the displacement of the pile casing 1 when the foundation mat layer 2 is poured.
Further, the pile casing fixing nail 5 is made of phi 8 or phi 10 steel bars, bent into an inverted J shape, the length of the straight rod is 10cm longer than that of the pile casing, the upper edge of the pile casing is hooked by the hook of the pile casing fixing nail 5, the straight rod faces downwards, the pile casing fixing nail 5 is nailed into the soil manually, and in the embodiment, 3 pile casing fixing nails 5 are used for fixing.
As shown in fig. 3 to 4, the soil discharging bucket 4 is used for loading and transferring pile residue soil during anchor rod construction, the soil discharging bucket 4 is made of steel plates, is processed into a basin shape, the thickness is 0.3-0.5 mm, the height H of the soil discharging bucket 4 is 30-50 cm, the soil discharging bucket 4 is matched and used by a group of two material containing basins 42, the soil discharging bucket 4 is symmetrically arranged, a semicircular groove 411 is arranged on one side of a symmetrical axis, when the two material containing basins 42 are closely and symmetrically arranged, the two semicircular grooves 411 form a cylindrical cavity 41 penetrating the soil discharging bucket 4, the diameter of the cylindrical cavity 41 is 3-6 cm larger than the diameter of an anti-floating anchor rod, and as shown in fig. 5, the minimum L of the distance between the center of the cavity 41 and the side wall of the drill rod of the anchor rod 7 is equal to the distance between the center of the drill rod of the anchor rod 7, so that the drill rod 7 can conveniently penetrate the cylindrical cavity 41; the volume of a group (two) of material containing basins 42 is larger than the volume of dregs formed by the hole forming of an anti-floating anchor rod, the design has the advantages that only one soil unloading bucket 4 needs to be installed once for each construction of one anti-floating anchor rod, the soil unloading bucket 4 is transported for soil unloading after the construction of one anti-floating anchor rod, and the volume of one soil unloading bucket 4 is generally 1.2-1.8 m 3 The method comprises the steps of carrying out a first treatment on the surface of the The soil discharging bucket 4 is provided with a hanging ring 43, and the hanging ring 43 is connected with the soil discharging bucket 4 in a welding way, so that a hoisting machine (not shown in the figure) can conveniently hoist and clean dregs in the soil discharging bucket.
Further, after the soil discharging bucket 4 is paved on the protective film layer, the jumbolter 7 is installed by adopting a hoisting machine before being in place, one of the material containing basins 42 is firstly placed at the anti-floating anchor part to be constructed, one half of the protective cylinder 1 is clamped into the semicircular groove 411, the other material containing basin 42 is installed in the same way, and the two material containing basins 42 are reliably fixed after the installation is completed; the soil discharging bucket 4 has an installation direction, wherein the side, with the smallest distance from the side wall of the soil discharging bucket 4, of the cylindrical cavity 41 is close to the jumbolter 7; the muck formed by the anchor rod drilling holes 7 is concentrated at the periphery of the anti-floating anchor rod holes, and manual assistance is needed to rake the muck in the soil discharge hopper 4. The soil unloading bucket 4 is not only used for loading and unloading dregs formed by the construction of the anti-floating anchor rod, but also can be used for loading overflow slurry of a cleaning hole of the anti-floating anchor rod and returning slurry of an orifice during grouting of the anti-floating anchor rod, and can be used for plugging a gap between the pile casing 1 of the anti-floating anchor rod and the soil unloading bucket 4 during liquid loading.
As shown in fig. 6, the filling blocks 3 for filling the independent foundation height difference can be prepared by adopting concrete at a construction site, the basic specification is 40×50×60cm, the specification and the size can be adjusted according to actual needs, wherein the height of the filling blocks 3 is consistent with the depth of the independent foundation pit 21 at the construction site; the center of the top of the filling block 3 is provided with a pit 31 and an inverted U-shaped handle ring 32 pre-buried in the pit 31 of the filling block 3, so that the filling block 3 is convenient to move and hoist, and a plurality of blocks are required to be combined for use in the use of the filling block 3, and a tower crane or other lifting equipment is usually required to hoist and transport.
Further, the filling block 3 needs steel plate cooperation construction, the thickness of the steel plate is 1-2 cm, the bearing capacity requirement is met, the plane size of the steel plate is consistent with the plane size of an independent foundation of a construction site, the steel plate is paved on the filling block 3 after the filling block 3 is uniformly arranged in the independent foundation pit 21, the site is leveled, and the jumbolter 7 can move horizontally conveniently.
Further, various devices of the anti-floating anchor rod inevitably damage and pollute the foundation mat layer 2 when drilling construction is carried out on the foundation mat layer 2, so that the foundation mat layer 2 is required to be protected, in the embodiment, the protection film is made of flexible materials, and common color stripe cloth, pvc plastic film or geotechnical cloth and other materials can be adopted for protecting the foundation mat layer 2 from being polluted and damaged by mud in the anti-floating anchor rod construction, and the anti-floating anchor rod is paved on the periphery of the anti-floating anchor rod to be constructed before the anti-floating anchor rod construction.
2. Anti-disturbance construction method for anti-floating anchor rod
Based on the same inventive concept, the embodiment of the application also provides a construction method of the anti-disturbance construction structure of the anti-floating anchor rod with the waterproof function, which is based on the anti-disturbance construction structure of the anti-floating anchor rod, as shown in fig. 7, and specifically comprises the following steps:
s1: according to the design drawing requirement, excavating foundation earthwork to the design elevation;
s2: measuring and paying off, positioning an anti-floating anchor rod, positioning and installing the pile casing 1, so that the positioning center of the anti-floating anchor rod coincides with the center of the pile casing 1, fixing the pile casing 1 by adopting pile casing fixing nails 5, and ensuring that the pile casing 1 does not displace when the foundation cushion layer 2 is poured;
s3: pouring and curing the foundation cushion layer 2, and not pouring cushion layer concrete in the pile casing 1;
s4: after the foundation cushion layer 2 is maintained to the designed strength, a certain number of filling blocks 3 are uniformly placed in the independent foundation pit 21 through lifting facilities such as a tower crane and the like, and then a hoisting steel plate is paved on the filling blocks 3;
s5: before the construction of the anti-floating anchor, a protective film layer is paved on the periphery of the anti-floating anchor to be constructed immediately;
s6: after a protective film is paved, the protective film is matched with an anti-floating anchor rod soil discharging bucket 4 through a tower crane, a cylindrical cavity 41 of the soil discharging bucket 4 is aligned with a pile casing 1 of the anti-floating anchor rod, and after the soil discharging bucket 4 is installed, two material containing basins 42 are fixedly connected, so that the material containing basins 42 are prevented from displacing during construction;
s7: the anchor rod drilling machine 7 is in place, the anti-floating anchor rod is subjected to pore-forming construction, and slag soil is manually raked and leveled in the soil unloading bucket 4 during drilling construction;
s8: after the anchor rod drilling is completed, the anchor rod drilling machine 7 is evacuated, the soil discharging bucket 4 is lifted and discharged through the tower crane, and the soil discharging bucket 4 is installed at the anti-floating anchor rod grouting position to be constructed after the soil discharging is completed;
s9: the anchor rod reinforcing steel bars are manufactured synchronously, and after the construction of the anti-floating anchor rod holes is completed, the anchor rod reinforcing steel bars are hoisted and grouting of the anti-floating anchor rods is carried out;
s10: after grouting maintenance of the anchor rod is completed, the pile casing 1 of the anti-floating anchor rod is higher than the surface of the foundation cushion layer 2, and the anti-floating anchor rod pile head is required to be subjected to over-grouting chiseling removal treatment, wherein when a soil discharge bucket 4 is used for loading hole-washing slurry or cement slurry, a gap between the soil discharge bucket 4 and the pile casing 1 is required to be plugged, the treated pile head surface of the anti-floating anchor rod is slightly lower than the surface of the foundation cushion layer 2, a concave surface structure is formed, and waterproof construction of the pile head node of the anti-floating anchor rod is carried out according to the standard or drawing requirements;
s11: waterproof construction of the pile head node of the anti-floating anchor rod and subsequent procedures.
According to the application, by designing the anti-floating anchor rod construction structure and adopting the cooperation of the filling blocks 3 and the steel plates, the problem of the height difference of a construction site is solved, and the horizontal displacement of an anchor rod construction machine is facilitated; the arrangement of the soil discharging bucket 4 improves the cleaning efficiency of earthwork and mud during construction of the anti-floating anchor rod, and ensures civilized construction; meanwhile, the disturbance of the anti-floating anchor bar steel bar and the damage of the pile head are avoided, and the quality of the anti-floating anchor construction engineering and the waterproof effect of the pile head are improved.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (10)
1. An anti-floating anchor rod anti-disturbance construction structure which is characterized in that: including foundation earthwork clearance is accomplished back vertical pile casing (1) of inserting foundation (6), pile casing (1) center and anti-floating anchor locating center coincidence, be equipped with foundation mat layer (2) around pile casing (1), pile casing (1) top all is higher than foundation mat layer (2) of pouring, be equipped with filling block (3) in independent foundation pit (21) on foundation mat layer (2) so that the plane that foundation mat layer (2) and filling block (3) formed is whole to be parallel and level.
2. The anti-floating anchor anti-disturbance construction structure according to claim 1, wherein: the top surfaces of the foundation mat layer (2) and the filling blocks (3) are provided with steel plates, and the plane shape and the size of the steel plates are consistent with the overall shape and the size of the plane of the foundation mat layer (2).
3. The anti-floating anchor anti-disturbance construction structure according to claim 2, wherein: the soil unloading bucket (4) which is arranged around the soil protection bucket (1) is arranged on the pile protection bucket (1) along the circumferential direction, a cavity (41) which is matched with the side wall of the pile protection bucket (1) is arranged in the middle of the soil unloading bucket (4), and a material containing space is formed by the bottom plate, the circumferential side wall and the side wall of the cavity (41) of the soil unloading bucket (4).
4. The anti-floating anchor anti-disturbance construction structure according to claim 3, wherein: the soil discharging bucket (4) is composed of two symmetrically arranged material containing basins (42), corresponding grooves (411) are formed in the inner side of each material containing basin (42), the two grooves (411) are spliced to form a cavity (41), a material containing space is formed by the bottom plate of the material containing basin (42), the circumferential side wall and the side wall of the groove (411), and the opposite side walls of the two material containing basins (42) are fixedly connected.
5. The anti-floating anchor anti-disturbance construction structure according to claim 4, wherein: the top edge of the pile casing (1) is provided with a pile casing fixing nail (5) which is in an inverted J shape, the upper edge of the pile casing (1) is hooked by the pile casing fixing nail (5), and a straight rod of the pile casing fixing nail (5) is longer than the pile casing.
6. The anti-floating anchor anti-disturbance construction structure according to claim 5, wherein: the top of the filling block (3) is provided with a pit (31), the bottom surface of the pit (31) is provided with an inverted U-shaped handle ring (32), and the soil discharging bucket (4) is provided with a plurality of hanging rings (43) along the circumferential direction.
7. The anti-floating anchor anti-disturbance construction structure according to claim 6, wherein: a protective film layer is arranged on the foundation cushion layer (2) around the protective cylinder (1).
8. An anti-disturbance construction method of an anti-floating anchor rod is characterized by comprising the following steps of: the method comprises the following steps:
s1: excavating foundation earthwork;
s2: measuring and paying off, positioning an anti-floating anchor rod, and positioning and installing a pile casing (1);
s3: pouring and curing the foundation mat layer (2);
s4: filling blocks (3) and steel plates fill up independent foundation pits (21);
s5: a protective film layer is paved on the foundation cushion layer (2);
s6: installing a soil discharging bucket (4);
s7: positioning an anchor rod drilling machine, and performing anti-floating anchor rod pore-forming construction;
s8: the anchor rod drilling machine is evacuated, and the soil unloading bucket (4) is lifted to unload soil;
s9: hoisting anchor rod reinforcing steel bars and grouting an anti-floating anchor rod;
s10: after grouting maintenance is completed, the pile head of the anti-floating anchor rod is subjected to over-grouting chiseling removal treatment;
s11: and (5) waterproof construction of the pile head node of the anti-floating anchor rod.
9. The anti-disturbance construction method of the anti-floating anchor according to claim 8, wherein the anti-disturbance construction method comprises the following steps: the specific process of the step S6 is as follows:
s61, adopting a hoisting machine to install, and paying attention to the fact that the side, with the smallest distance from the cavity (41) to the side wall of the soil unloading bucket (4), is close to the jumbolter;
s62, placing one of the material containing basins (42) at an anti-floating anchor rod part to be constructed, clamping half of the pile casing (1) into a groove (411) of the material containing basin (42), and installing the other material containing basin (42) in the same way;
and S63, fixing the opposite surfaces of the two material containing basins (42) after the installation is completed.
10. The anti-disturbance construction method of the anti-floating anchor according to claim 9, wherein the anti-disturbance construction method comprises the following steps: in the step S10, the pile head of the overirrigated anti-floating anchor rod is manually chiseled, and the pile head surface of the anti-floating anchor rod after the treatment is lower than the surface of the foundation mat layer (2) to form a concave structure.
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