CN115341532A - Installation and construction method of three-section type anchor pulling fixing device for super-long steel sheet pile - Google Patents
Installation and construction method of three-section type anchor pulling fixing device for super-long steel sheet pile Download PDFInfo
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- CN115341532A CN115341532A CN202211076118.3A CN202211076118A CN115341532A CN 115341532 A CN115341532 A CN 115341532A CN 202211076118 A CN202211076118 A CN 202211076118A CN 115341532 A CN115341532 A CN 115341532A
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- pull rod
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
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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
- E02D5/74—Means for anchoring structural elements or bulkheads
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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Abstract
The invention discloses an installation and construction method of a three-section type anchor pulling fixing device for an overlong steel sheet pile, which comprises the steps of S1 soil layer leveling and pile sinking scribing, S2 pile sinking of the overlong steel sheet pile, S3 pile sinking of the anchor pile, S4 steel guide beam installation, S5 anchor pull rod device installation, S6 surface layer sand coating, stone coating, soil covering and the like.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to an installation and construction method of a three-section anchor pulling fixing device for an overlong steel sheet pile.
Background
The steel sheet pile has the characteristics of strong bearing capacity, good water tightness, high operation efficiency, good durability and the like, is widely applied to the field of engineering construction, and is commonly used for constructing retaining walls in wharf construction projects, dock and ship lock construction projects, dam and cofferdam construction projects and various projects. The steel sheet pile structure needs the pull rod to conduct the soil pressure that it received to anchorage structure, ensures the overall stability of steel sheet pile structure.
For the ultra-long steel sheet pile, the larger the soil penetration depth is, the higher the soil pressure is, the higher the requirement on the anchoring force of the anchor structure is, so that the larger the size of the anchor structure corresponding to the ultra-long steel sheet pile structure is, the deeper the anchoring depth is, the longer the distance from the steel sheet pile structure is, and the longer the pull rod length is.
At present, in the existing installation and construction process of the three-section type anchor pulling fixing device for the ultra-long steel sheet pile, after the upper part of a long pull rod is covered with soil, the pull rod is easy to deform under the action of additional stress generated by constant soil load and equipment mechanical live load due to the large slenderness ratio of the long pull rod, so that the deflection is increased, and further, the steel sheet pile structure is deformed, so that the overall stability and the water tightness are not high.
Disclosure of Invention
The invention aims to: the installation and construction method of the three-section type anchor pulling and fixing device for the ultra-long steel sheet pile is provided to solve the defects.
In order to achieve the above purpose, the invention provides the following technical scheme:
an installation and construction method of a three-section type anchor pulling and fixing device for an ultra-long steel sheet pile comprises the following steps:
s1, soil leveling and pile sinking scribing:
carrying out land leveling in a to-be-constructed area to form a silt layer, and marking and determining the positions of sinking piles of the ultra-long steel sheet piles and the anchor piles on the surface of the silt layer according to a drawing;
s2, pile sinking of the ultra-long steel sheet pile:
before sinking the ultra-long steel sheet pile, firstly coating calcium-based lubricating grease at the locking parts arranged on the two sides of the ultra-long steel sheet pile, then sequentially sinking a plurality of ultra-long steel sheet piles at intervals in the forward and reverse directions at the scribing positions of the ultra-long steel sheet pile sinking, and mutually engaging the locking parts of two adjacent ultra-long steel sheet piles to ensure that the plurality of ultra-long steel sheet piles are connected end to form an ultra-long steel sheet pile group of the planar retaining enclosure structure;
s3, pile sinking of the anchor pile:
sequentially sinking a plurality of anchorage piles at the marking positions of the anchorage pile sinking piles by utilizing a vibrating hammering and drawing machine to form anchorage pile groups;
s4, mounting a steel guide beam:
firstly, a layer of soil is blown and filled on a silt layer to form a blown and filled soil layer, an anchorage beam is arranged on the blown and filled soil layer where a plurality of anchorage piles are arranged, and the top ends of the anchorage piles are embedded into the anchorage beam; secondly, guide beam connecting bolt holes and guide beam side pull rod holes are alternately arranged on the plurality of forward overlong steel sheet piles at intervals; then, arranging steel guide beams on the outer sides of the forward overlong steel sheet piles provided with guide beam connecting bolt holes, and installing guide beam connecting bolts in the guide beam connecting bolt holes to fix the steel guide beams on the overlong steel sheet piles; finally, steel guide beam butt-joint channel steel is installed at the joint of two adjacent steel guide beams, so that the two adjacent steel guide beams are fixedly connected together;
s5, installing an anchorage pull rod device:
a plurality of forward ultra-long steel sheet piles provided with guide beam side pull rod holes correspond to a plurality of anchorage piles one by one, and anchorage pull rod devices are arranged between the forward ultra-long steel sheet piles and the anchorage piles; the anchorage pull rod device consists of a guide beam side pull rod, a middle section pull rod and an anchorage side pull rod; then, fixing the tail end of the anchorage side pull rod in an anchorage beam, and fixing the front end of the guide beam side pull rod in a guide beam side pull rod hole of a forward ultra-long steel sheet pile provided with the guide beam side pull rod hole, wherein the front end of the guide beam side pull rod penetrates through a steel guide beam; then, both ends of the middle section pull rod are respectively fixedly connected with the tail end of the guide beam side pull rod and the front end of the anchorage side pull rod through a vertical rotating one-way control hinge;
s6, sand coating, stone coating and soil covering on the surface layer:
and a coarse sand layer, a backfill block stone layer, a humanoid brick and a backfill soil layer are sequentially laid on the dredger fill layer at the inner side of the anchor beam and the anchor beam in a covering manner.
Preferably, in the step S4, the steel guide beam is composed of an upper channel steel, a lower channel steel and a double-layer web arranged between the upper channel steel and the lower channel steel, side end surfaces of the upper channel steel and the lower channel steel are tightly attached to side end surfaces of the ultra-long steel sheet pile, a guide beam pull rod preformed hole is formed in the double-layer web, and the guide beam pull rod penetrates through the guide beam pull rod preformed hole of the steel guide beam.
Preferably, in the step S4, the steel guide beam butt joint channel steel is composed of an upper butt joint channel steel and a lower butt joint channel steel, the upper butt joint channel steel is arranged at the joint of the upper end faces of two adjacent upper channel steels, the lower butt joint channel steel is arranged at the joint of the lower end faces of two adjacent lower channel steels, a plurality of butt joint fixing bolt holes are formed in the upper end faces of the upper butt joint channel steel, the lower butt joint channel steel, the upper end face of the upper channel steel and the lower end face of the lower channel steel, and the butt joint fixing bolt holes are internally provided with butt joint fixing bolts and fix the two adjacent steel guide beams together through the steel guide beam butt joint channel steel.
Preferably, in the step S4, a steel guide beam bracket is arranged at a joint between the lower end surface of the steel guide beam and the end surface of the ultra-long steel sheet pile side, and the steel guide beam bracket is fixed on the end surface of the ultra-long steel sheet pile side.
Preferably, in step S2, the locking parts of the super-long steel sheet piles are coiled plate-shaped structures, and two locking parts of two adjacent front and back super-long steel sheet piles are engaged in a double spiral manner.
Preferably, in the step S5, a connecting bolt protective cap is arranged on the forward overlong steel sheet pile at the front end of the guide beam connecting bolt; a pull rod pressing plate is arranged at the front end of the guide beam side pull rod and is fixed through a nut, and a pull rod protective cap is arranged on the forward overlong steel sheet pile outside the front end of the guide beam side pull rod; asphalt is filled between the outer side of the guide beam connecting bolt and the inner side of the connecting bolt protective cap and between the outer side of the guide beam side pull rod and the inner side of the pull rod protective cap.
Preferably, in the step S6, the specific construction steps of sand-covering, stone-covering and soil-covering on the surface layer include: firstly, paving a layer of coarse sand on a dredger fill layer on the inner side of an anchorage beam to form a coarse sand layer, and placing the front ends of a steel guide beam, a guide beam side pull rod, a middle section pull rod and an anchorage side pull rod in the coarse sand layer; secondly, a backfill rock layer is arranged above the coarse sand layer where the super-long steel sheet pile is located, and the upper end of the super-long steel sheet pile is placed in the backfill rock layer; then, continuously backfilling coarse sand above the coarse sand layer between the backfilling block stone layer and the anchor beam until the height of the anchor beam is equal to the height of the anchor beam; finally, paving the artificial bricks at the upper end of the backfill stone layer; and backfill soil layers are arranged at the upper ends of the backfill block stone layers outside the anthropomorphic bricks, above backfill coarse sand between the backfill block stone layers and the anchor beams and above the anchor beams.
The invention has the beneficial effects that:
the invention relates to an installation and construction method of a three-section type anchor pulling fixing device for an overlong steel sheet pile, which comprises the steps of S1 soil layer leveling and pile sinking scribing, S2 pile sinking of the overlong steel sheet pile, S3 pile sinking of the anchor pile, S4 steel guide beam installation, S5 anchor pull rod device installation, S6 surface layer sand coating, stone coating, soil covering and the like.
Drawings
FIG. 1: the invention discloses a structural schematic diagram of a three-section anchor pulling fixing device for an ultra-long steel sheet pile;
FIG. 2: the structure at A in FIG. 1 is enlarged;
FIG. 3: the mounting structure schematic diagram of the steel guide beam and the steel guide beam butt-joint channel steel of the overlong steel sheet pile three-section type anchor pulling fixing device is disclosed;
FIG. 4: the invention relates to a top view of a connecting structure of an overlong steel sheet pile and a steel guide beam of an overlong steel sheet pile three-section type anchor pulling and fixing device.
Detailed Description
The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1-4:
as shown in fig. 1-4, a method for installing and constructing a three-section anchor pulling and fixing device for an ultra-long steel sheet pile comprises the following steps:
s1, leveling soil layers and marking-out immersed piles:
and carrying out land leveling on the area to be constructed to form a silt layer 100, and marking and determining pile sinking positions of the ultra-long steel sheet pile 1 and the anchor pile 2 on the surface of the silt layer 100 according to a drawing.
S2, pile sinking of the ultra-long steel sheet pile:
before the ultra-long steel sheet pile 1 is sunk, the locking pieces 11 arranged on two sides of the ultra-long steel sheet pile 1 are coated with calcium-based lubricating grease, so that the pile sinking is facilitated, and a waterproof effect can be achieved at the later stage. And then sequentially sinking a plurality of overlong steel sheet piles 1 at the pile sinking and marking positions of the overlong steel sheet piles 1 at intervals in the forward direction and the reverse direction by using a vibrating hammering and drawing machine, so that the locking pieces 11 of two adjacent overlong steel sheet piles 1 are conveniently meshed with each other, and the plurality of overlong steel sheet piles 1 are connected end to form an overlong steel sheet pile group of the planar retaining and protecting structure.
The ultra-long steel sheet pile 1 is used as a retaining and enclosing structure for bearing the lateral pressure of water and soil, and the embedding depth of the ultra-long steel sheet pile is not less than half of the total length, so that the anti-overturning stability of the steel sheet pile retaining and enclosing structure is ensured.
The locking pieces 11 of the super-long steel sheet piles 1 are of a coiled plate-shaped structure, and the two locking pieces 11 of two adjacent front and back super-long steel sheet piles 1 are meshed in a double-spiral mode. The double spiral type occlusion can ensure that the overlength steel sheet pile 1 is tightly occluded to form a firm whole, and a tight waterproof structure can be formed by the locking piece 11 and calcium-based lubricating grease in the locking piece, so that the water tightness of the overlength steel sheet pile 1 is guaranteed.
S3, pile sinking of the anchorage pile:
and (4) sequentially sinking a plurality of anchorage piles 2 at the pile sinking and marking positions of the anchorage piles 2 by utilizing a vibrating hammering and drawing machine to form an anchorage pile group. The anchor pile 2 is a PHC prestressed concrete pipe pile, and the depth of the embedded soil is consistent with that of the ultra-long steel sheet pile 1.
S4, mounting a steel guide beam:
firstly, a layer of soil is hydraulically filled on a silt layer 100 to form a hydraulic filling soil layer 101, an anchorage beam 3 is arranged on the hydraulic filling soil layer 101 where a plurality of anchorage piles 2 are arranged, and the top ends of the anchorage piles 2 are embedded into the anchorage beam 3. The anchorage beam 3 is of a reinforced concrete structure, and the anchorage pile 2 of the PHC prestressed concrete pipe pile is embedded into the anchorage beam 3 for more than 60cm, so that the anchorage strength of the anchorage beam is ensured.
And secondly, guide beam connecting bolt holes and guide beam side pull rod holes are alternately arranged on the plurality of forward overlong steel sheet piles 1 at intervals. That is, for example, if odd-numbered ones of the overlong steel sheet piles 1 such as 1 st, 3 rd, 5 th, 7 th, and 9 th are arranged in the forward direction, even-numbered ones of the overlong steel sheet piles 1 such as 2 nd, 4 th, 6 th, 8 th, and 10 th are arranged in the reverse direction. Therefore, on the forward ultra-long steel sheet pile 1, if 1, 5 and 9 \8230 \ 8230 \ 8230, and each ultra-long steel sheet pile 1 and the like are provided with guide beam connecting bolt holes, then 3, 7 \8230 \ 8230, and each ultra-long steel sheet pile 1 is provided with guide beam side pull rod holes.
Then, steel guide beams 4 are arranged on the outer sides of the forward overlong steel sheet piles 1 provided with guide beam connecting bolt holes, and guide beam connecting bolts 8 are installed in the guide beam connecting bolt holes to fix the steel guide beams 4 on the overlong steel sheet piles 1. The steel guide beam 4 is composed of an upper channel steel 41, a lower channel steel 42 and a double-layer web 43 arranged between the upper channel steel 41 and the lower channel steel 42, the side end surfaces of the upper channel steel 41 and the lower channel steel 42 are tightly attached to the side end surface of the ultra-long steel sheet pile 1, a guide beam pull rod reserved hole 44 is formed in the double-layer web 43, and a guide beam pull rod 51 penetrates through the guide beam pull rod reserved hole 44 of the steel guide beam 4. And a steel guide beam bracket 7 is arranged at the joint of the lower end surface of the steel guide beam 4 and the side end surface of the ultra-long steel sheet pile 1, and the steel guide beam bracket 7 is fixed on the side end surface of the ultra-long steel sheet pile 1.
And finally, installing steel guide beam butt joint channel steel 6 at the joint of the two adjacent steel guide beams 4 to fixedly connect the two adjacent steel guide beams 4 together. The steel guide beam butt joint channel steel 6 is composed of an upper butt joint channel steel 61 and a lower butt joint channel steel 62, the upper butt joint channel steel 61 is arranged at the joint of the upper end faces of two adjacent upper channel steels 41, the lower butt joint channel steel 62 is arranged at the joint of the lower end faces of two adjacent lower channel steels 42, the upper end faces of the upper butt joint channel steel 61, the lower butt joint channel steel 62, the upper end face of the upper channel steel 41 and the lower end face of the lower channel steel 42 are respectively provided with a plurality of butt joint fixing bolt holes, and the butt joint fixing bolts 63 are installed in the butt joint fixing bolt holes and fix two adjacent steel guide beams 4 together through the steel guide beam butt joint channel steel 6.
S5, installing an anchorage pull rod device:
a plurality of forward ultra-long steel sheet piles 1 provided with guide beam side pull rod holes correspond to a plurality of anchorage piles 2 one by one, and anchorage pull rod devices 5 are arranged between the forward ultra-long steel sheet piles and the anchorage piles; the anchorage pull rod device 5 consists of a guide beam side pull rod 51, a middle section pull rod 52 and an anchorage side pull rod 53; then, the tail end of an anchorage side pull rod 53 is fixed in an anchorage beam 3, and the front end of a guide beam side pull rod 51 penetrates through a steel guide beam 4 and is fixed in a guide beam side pull rod hole of a forward ultra-long steel sheet pile 1 provided with a guide beam side pull rod hole; and then both ends of the middle section pull rod 52 are respectively connected and fixed with the tail end of the guide beam side pull rod 51 and the front end of the anchor side pull rod 53 through a vertical rotation one-way control hinge 54.
The vertical rotation one-way control hinge 54 is a one-way control hinge head only capable of vertically rotating, the anchorage pull rod device 5 is of a three-section type structure, after soil is covered on the upper portion of the anchorage pull rod device 5, due to the fact that the slenderness ratio of the pull rod of the anchorage pull rod device 5 is large, under the action of additional stress generated by constant soil load and mechanical live load of equipment, the three pull rods are prone to deformation, deflection is increased, further the structure of the ultra-long steel sheet pile 1 is deformed, and overall stability and water tightness are affected, and therefore the three-section type anchorage pull rod device 5 is arranged, and the fact that the pull rod can conduct tensile force under the additional stress and cannot generate large deformation is guaranteed. And the vertical rotating one-way control hinge 54 is used for reducing the transmission of the deformation of the middle-section pull rod 52 to two sides under the action of additional stress, and simultaneously keeping the provision of pulling force or pushing force in the direction of the pull rod, so as to ensure the overall stability of the structure of the ultra-long steel sheet pile 1.
Wherein, a connecting bolt protective cap 14 is arranged on the forward overlong steel sheet pile 1 at the front end of the guide beam connecting bolt 8; a pull rod pressing plate 13 is arranged at the front end of the guide beam side pull rod 51 and is fixed through a nut, and a pull rod protective cap 12 is arranged on the forward overlong steel sheet pile 1 on the outer side of the front end of the guide beam side pull rod 51; asphalt 15 or calcium-based lubricating grease is filled between the outer side of the guide beam connecting bolt 8 and the inner side of the connecting bolt protective cap 14 and between the outer side of the guide beam side pull rod 51 and the inner side of the pull rod protective cap 12 and is sealed up and down, so that the corrosion of river and lake water to the guide beam connecting bolt 8 or the ultra-long steel sheet pile 1 in the long-term use process is reduced, and the use durability is improved.
S6, sand coating, stone coating and soil covering on the surface layer:
a coarse sand layer 103, a backfill block stone layer 102, a humanoid brick 105 and a backfill soil layer 104 are sequentially covered and paved on the blown fill soil layer 101 on the inner side of the anchor beam 3 and the anchor beam 3. The concrete construction steps are as follows: firstly, paving a layer of coarse sand on a blowing fill soil layer 101 on the inner side of an anchorage beam 3 to form a coarse sand layer 103, and placing the front ends of a steel guide beam 4, a guide beam side pull rod 51, a middle section pull rod 52 and an anchorage side pull rod 53 in the coarse sand layer 103; secondly, a backfill rock layer 102 is arranged above the coarse sand layer 103 where the ultra-long steel plate pile 1 is located, and the upper end of the ultra-long steel plate pile 1 is placed in the backfill rock layer 102; then, continuously backfilling coarse sand above a coarse sand layer 103 between the backfilling stone layer 102 and the anchor beam 3 until the height of the anchor beam 3 is equal to the height of the anchor beam; finally, paving a shaped brick 105 at the upper end of the backfill stone layer 102; and backfill soil layers 104 are arranged at the upper ends of the backfill block stone layers 102 outside the man-shaped bricks 105, above backfill coarse sand between the backfill block stone layers 102 and the anchorage beams 3 and above the anchorage beams 3.
The invention relates to an installation and construction method of a three-section type anchor pulling fixing device for an overlong steel sheet pile, which comprises the steps of S1 soil layer leveling and pile sinking scribing, S2 pile sinking of the overlong steel sheet pile, S3 pile sinking of the anchor pile, S4 steel guide beam installation, S5 anchor pull rod device installation, S6 surface layer sand coating, stone coating, soil covering and the like.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.
Claims (7)
1. The mounting and construction method of the three-section type anchor pulling and fixing device for the ultra-long steel sheet pile is characterized by comprising the following steps of:
s1, leveling soil layers and marking-out immersed piles:
land leveling is carried out on a to-be-constructed area to form a silt layer (100), and scribing and determining the pile sinking positions of the ultra-long steel plate pile (1) and the anchorage pile (2) on the surface of the silt layer (100) according to a drawing;
s2, pile sinking of the ultra-long steel sheet pile:
before sinking the ultra-long steel sheet pile (1), brushing calcium-based lubricating grease on locking pieces (11) arranged on two sides of the ultra-long steel sheet pile (1), then sequentially sinking a plurality of ultra-long steel sheet piles (1) at intervals in the forward and reverse directions by using a vibrating hammer-driving drawing machine at the pile sinking scribing positions of the ultra-long steel sheet pile (1), and mutually engaging the locking pieces (11) of two adjacent ultra-long steel sheet piles (1) to enable the plurality of ultra-long steel sheet piles (1) to be connected end to form an ultra-long steel sheet pile group of a planar retaining enclosure structure;
s3, pile sinking of the anchor pile:
sequentially sinking a plurality of anchorage piles (2) at the pile sinking scribing positions of the anchorage piles (2) by utilizing a vibrating hammering drawbench to form an anchorage pile group;
s4, mounting a steel guide beam:
firstly, a layer of soil is blown and filled on a silt layer (100) to form a blown and filled soil layer (101), an anchorage beam (3) is arranged on the blown and filled soil layer (101) where a plurality of anchorage piles (2) are arranged, and the top ends of the anchorage piles (2) are embedded into the anchorage beam (3); secondly, guide beam connecting bolt holes and guide beam side pull rod holes are alternately arranged on the plurality of forward overlong steel sheet piles (1) at intervals; then, steel guide beams (4) are arranged on the outer sides of the forward overlong steel sheet piles (1) provided with guide beam connecting bolt holes, and guide beam connecting bolts (8) are installed in the guide beam connecting bolt holes to fix the steel guide beams (4) on the overlong steel sheet piles (1); finally, steel guide beam butt joint channel steel (6) is installed at the joint of the two adjacent steel guide beams (4), so that the two adjacent steel guide beams (4) are fixedly connected together;
s5, installing an anchorage pull rod device:
a plurality of forward ultra-long steel sheet piles (1) provided with guide beam side pull rod holes correspond to a plurality of anchorage piles (2) one by one, and anchorage pull rod devices (5) are arranged between the forward ultra-long steel sheet piles and the anchorage piles; the anchorage pull rod device (5) consists of a guide beam side pull rod (51), a middle section pull rod (52) and an anchorage side pull rod (53); then, fixing the tail end of the anchorage side pull rod (53) in an anchorage beam (3), and enabling the front end of the guide beam side pull rod (51) to penetrate through a steel guide beam (4) and be fixed in a guide beam side pull rod hole of a forward overlong steel sheet pile (1) with a guide beam side pull rod hole; then, both ends of the middle section pull rod (52) are respectively connected and fixed with the tail end of the guide beam side pull rod (51) and the front end of the anchorage side pull rod (53) through a vertical rotation one-way control hinge (54);
s6, sand coating, stone coating and soil covering on the surface layer:
the dredger fill layer (101) on the inner side of the anchor beam (3) and the anchor beam (3) are sequentially covered and paved with a coarse sand layer (103), a backfill block stone layer (102), a humanoid brick (105) and a backfill soil layer (104).
2. The installation and construction method of the three-stage anchor pulling fixing device for the overlong steel sheet pile according to claim 1, wherein in the step S4, the steel guide beam (4) is composed of an upper channel steel (41), a lower channel steel (42) and a double-layer web (43) arranged between the upper channel steel (41) and the lower channel steel (42), side end faces of the upper channel steel (41) and the lower channel steel (42) are tightly attached to a side end face of the overlong steel sheet pile (1), a guide beam pull rod reserved hole (44) is formed in the double-layer web (43), and the guide beam pull rod (51) penetrates through the guide beam pull rod reserved hole (44) of the steel guide beam (4).
3. The mounting and construction method of the three-section type anchor pulling and fixing device for the overlong steel sheet pile is characterized in that in the step S4, the steel guide beam butt joint channel steel (6) is composed of an upper butt joint channel steel (61) and a lower butt joint channel steel (62), the upper butt joint channel steel (61) is arranged at the joint of the upper end surfaces of two adjacent upper channel steels (41), the lower butt joint channel steel (62) is arranged at the joint of the lower end surfaces of two adjacent lower channel steels (42), a plurality of butt joint fixing bolt holes are formed in the upper butt joint channel steel (61), the lower butt joint channel steel (62), the upper end surface of the upper channel steel (41) and the lower end surface of the lower channel steel (42), and butt joint fixing bolts (63) are installed in the butt joint fixing bolt holes and fix the two adjacent steel guide beams (4) together through the steel guide beam butt joint (6).
4. The method for installing and constructing the three-section type anchor pulling and fixing device for the overlong steel sheet pile according to any one of claims 1 to 3, wherein in the step S4, a steel guide beam bracket (7) is arranged at the joint of the lower end face of the steel guide beam (4) and the side end face of the overlong steel sheet pile (1), and the steel guide beam bracket (7) is fixed on the side end face of the overlong steel sheet pile (1).
5. The installation and construction method of the three-stage anchor pulling fixing device for the overlong steel sheet pile as claimed in claim 2, wherein in the step S2, the locking pieces (11) of the overlong steel sheet pile (1) are in a coiled plate-shaped structure, and the two locking pieces (11) of two adjacent front and back overlong steel sheet piles (1) are engaged in a double-spiral manner.
6. The method for installing and constructing the three-section type anchor pulling and fixing device for the overlong steel sheet pile as claimed in claim 1, wherein in the step S5, a connecting bolt protective cap (14) is arranged on the overlong steel sheet pile (1) in the forward direction at the front end of the guide beam connecting bolt (8); a pull rod pressing plate (13) is arranged at the front end of the guide beam side pull rod (51) and is fixed through a nut, and a pull rod protective cap (12) is arranged on the forward overlong steel sheet pile (1) on the outer side of the front end of the guide beam side pull rod (51); asphalt (15) is filled between the outer side of the guide beam connecting bolt (8) and the inner side of the connecting bolt protective cap (14) and between the outer side of the guide beam side pull rod (51) and the inner side of the pull rod protective cap (12).
7. The installation and construction method of the three-stage anchor pulling and fixing device for the overlong steel sheet pile according to claim 1, wherein in the step S6, the concrete construction steps of sand coating, stone coating and soil covering on the surface layer are as follows:
firstly, paving a layer of coarse sand on a dredger fill layer (101) on the inner side of an anchorage beam (3) to form a coarse sand layer (103), and placing the front ends of a steel guide beam (4), a guide beam side pull rod (51), a middle section pull rod (52) and an anchorage side pull rod (53) in the coarse sand layer (103); secondly, a backfill rock mass layer (102) is arranged above the coarse sand layer (103) where the ultra-long steel plate pile (1) is located, and the upper end of the ultra-long steel plate pile (1) is placed in the backfill rock mass layer (102); then, continuously backfilling coarse sand above a coarse sand layer (103) between the backfilling block stone layer (102) and the anchor beam (3) until the height of the anchor beam (3) is level; finally, paving the anthropomorphic brick (105) at the upper end of the backfilling stone layer (102); and backfill soil layers (104) are arranged at the upper ends of the backfill block stone layers (102) outside the anthropomorphic bricks (105), above backfill coarse sand between the backfill block stone layers (102) and the anchor beams (3) and above the anchor beams (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211076118.3A CN115341532A (en) | 2022-09-01 | 2022-09-01 | Installation and construction method of three-section type anchor pulling fixing device for super-long steel sheet pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211076118.3A CN115341532A (en) | 2022-09-01 | 2022-09-01 | Installation and construction method of three-section type anchor pulling fixing device for super-long steel sheet pile |
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| CN115341532A true CN115341532A (en) | 2022-11-15 |
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| CN202211076118.3A Pending CN115341532A (en) | 2022-09-01 | 2022-09-01 | Installation and construction method of three-section type anchor pulling fixing device for super-long steel sheet pile |
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| DE10024995A1 (en) * | 2000-05-22 | 2001-12-06 | Hsp Hoesch Spundwand Und Profi | Sheet piling wall; has sheet piles connected by clamps and at least one perpendicular or inclined flange, that is held by holder elements in engagement grooves on sheet piles |
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| CN212772380U (en) * | 2020-06-24 | 2021-03-23 | 青岛市勘察测绘研究院 | Steel pipe anchor slab pile foundation pit supporting system |
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| DE10024995A1 (en) * | 2000-05-22 | 2001-12-06 | Hsp Hoesch Spundwand Und Profi | Sheet piling wall; has sheet piles connected by clamps and at least one perpendicular or inclined flange, that is held by holder elements in engagement grooves on sheet piles |
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| JP2007051485A (en) * | 2005-08-19 | 2007-03-01 | Railway Technical Res Inst | Structure and method for joining foundation of structure and sheet pile together |
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