CN115492102A - Construction method of piling platform unit - Google Patents
Construction method of piling platform unit Download PDFInfo
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- CN115492102A CN115492102A CN202211219229.5A CN202211219229A CN115492102A CN 115492102 A CN115492102 A CN 115492102A CN 202211219229 A CN202211219229 A CN 202211219229A CN 115492102 A CN115492102 A CN 115492102A
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- 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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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Abstract
The invention discloses a construction method of a piling platform unit, which comprises the following steps: piling according to the depth of the rock stratum in the stratum to fix one end of the pile column with the rock stratum; after piling is finished, two rows of pile column groups arranged in sequence are obtained; the arrangement directions of the two rows of pile column groups are parallel to each other; extending the first crown beam along the arrangement direction of one row of pile column group, extending the second crown beam along the arrangement direction of the other row of pile column group, and respectively fixedly connecting the first crown beam and the second crown beam with the upper ends of the corresponding pile column groups; arranging a plurality of cross beams along the length direction of the first crown beam and/or the second crown beam, and respectively connecting two ends of the plurality of cross beams with the first crown beam and the second crown beam. The technical scheme includes that the first crown beam, the second crown beam and the cross beams are connected after piling, supporting feet of the equipment stand on the cross beams, the first crown beam and the second crown beam respectively disperse weight to piles of corresponding pile groups, and the lower ends of the piles are fixedly connected with rock stratums to avoid sinking of the supporting feet.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a construction method of a piling platform unit.
Background
A river-crossing bridge is an artificial structure specially constructed to maintain the continuity of roads when the roads run into obstacles such as rivers, lakes, deep valleys and other lines (railways or highways). If the lifting equipment needs to cross rivers and lakes, and the soil of a part of the area of the bank of the water area is soft, the lifting equipment is prone to sinking when operating in the area, for example, the supporting legs of the lifting equipment stand on the area with the soft soil, the supporting legs are prone to sinking into the soil layer, so that the lifting equipment cannot be in a horizontal state, the balance of the lifting equipment is affected, and particularly after the lifting equipment lifts a heavy object, the inclination phenomenon is serious.
Disclosure of Invention
The invention mainly aims to provide a construction method of a pile driving platform unit, and aims to solve the problem that supporting legs are easy to sink when hoisting equipment works in a soft soil area.
In order to achieve the purpose, the construction method of the pile driving platform unit provided by the invention comprises the following steps:
two groups of single-row pile columns are driven according to the depth of rock strata in the stratum, and one end of each pile column is fixedly connected with the rock strata to obtain two rows of pile column groups which are arranged at intervals; the arrangement directions of the two rows of pile column groups are parallel to each other;
extending a first crown beam along the arrangement direction of one row of pile column group, extending a second crown beam along the arrangement direction of the other row of pile column group, and respectively fixedly connecting the first crown beam and the second crown beam with the upper ends of the corresponding pile column groups;
arranging a plurality of cross beams along the length direction of the first crown beam and/or the second crown beam, and respectively connecting two ends of the plurality of cross beams with the first crown beam and the second crown beam.
Preferably, the step of arranging a plurality of cross beams in a length direction of the first crown beam and/or the second crown beam and connecting two ends of the plurality of cross beams to the first crown beam and the second crown beam respectively further comprises the steps of:
the distance between adjacent beams is less than 50mm.
Preferably, the step of arranging the plurality of cross beams in the length direction of the first crown beam and/or the second crown beam and connecting the two ends of the plurality of cross beams to the first crown beam and the second crown beam respectively further comprises the following steps:
and laying bearing plates on the tops of the plurality of cross beams.
Preferably, two groups of single-row piles are driven according to the depth of a rock stratum in the stratum, so that one end of each pile is fixedly connected with the rock stratum to obtain two rows of pile groups arranged at intervals; the method comprises the following steps of arranging two columns of pile groups in parallel, wherein the method comprises the following steps:
drilling a required pile hole by using a drilling machine, wherein the pile hole at least penetrates into a rock stratum by 1m;
and pouring concrete into the pile hole, and obtaining the pile after the concrete is condensed.
Preferably, after the step of drilling the required pile hole with a drilling machine, the step of drilling the pile hole at least 1m deep into the rock stratum further comprises the following steps:
a steel bar structure is lapped in the pile hole;
and pouring concrete into the pile hole, and controlling the pouring height of the concrete to be lower than the height of the upper end of the steel bar structure.
Preferably, the step of extending and setting the first crown beam along the arrangement direction of one column of pile group, extending and setting the second crown beam along the arrangement direction of the other column of pile group, and respectively fixedly connecting the first crown beam and the second crown beam with the upper end of the corresponding pile group further comprises the following steps:
respectively welding and fixing the first crown beam and/or the second crown beam with the tops of the steel bar structures of the pile column groups in the corresponding rows; or the like, or, alternatively,
digging a first crown beam pouring groove and a second crown beam pouring groove on the surface of the ground, wherein the steel bar structures of the pile column groups of the corresponding columns extend into the first crown beam pouring groove and the second crown beam pouring groove;
and pouring concrete into the first crown beam pouring groove and the second crown beam pouring groove.
Preferably, two groups of single-row piles are driven according to the depth of a rock stratum in the stratum, so that one end of each pile is fixedly connected with the rock stratum to obtain two rows of pile groups arranged at intervals; the step that the arrangement directions of two rows of pile column groups are parallel to each other further comprises the following steps:
between adjacent piles in the same pile group, on one side of the pile far away from the other pile group, the concrete slurry is sprayed into the soil layer and mixed with the soil body by a high-pressure rotating nozzle to form a continuous lapped high-pressure rotary spraying pile.
Preferably, two groups of single-row piles are driven according to the depth of a rock stratum in the stratum, so that one end of each pile is fixedly connected with the rock stratum to obtain two rows of pile groups arranged at intervals; the step that the arrangement directions of two rows of pile column groups are parallel to each other further comprises the following steps:
the rock stratum is a slightly weathered marble rock layer or an undifferentiated marble rock layer.
Preferably, two groups of single-row piles are driven according to the depth of a rock stratum in the stratum, so that one end of each pile is fixedly connected with the rock stratum to obtain two rows of pile groups arranged at intervals; after the step of arranging the two columns of pile column groups in parallel, the method further comprises the following steps of:
the pile columns in the two rows of pile column groups arranged in sequence are in one-to-one correspondence, one end of the waist beam is fixed with the pile column in one row of pile column group, and the other end of the waist beam is fixed with the corresponding pile column in the other row of pile column group.
Preferably, after the step of arranging the plurality of cross beams in the length direction of the first crown beam and/or the second crown beam and connecting the two ends of the plurality of cross beams to the first crown beam and the second crown beam respectively, the method further comprises the following steps of:
and after the two ends of the plurality of cross beams are respectively connected with the first crown beam and the second crown beam, the tops of the first crown beam, the second crown beam and the cross beams are flush with the surface of the ground layer.
According to the technical scheme, the pile is driven on the stratum, and one end of the pile is fixedly connected with the rock stratum; after piling is finished, two rows of pile column groups which are arranged at intervals are obtained, and the arrangement directions of the two rows of pile column groups are parallel to each other; then, extending and arranging a first crown beam along the arrangement direction of one row of pile column groups, extending and arranging a second crown beam along the arrangement direction of the other row of pile column groups, and respectively fixedly connecting the first crown beam and the second crown beam with the upper ends of the corresponding pile column groups; arranging a plurality of cross beams along the length direction of the first crown beam and/or the second crown beam, and respectively connecting two ends of the plurality of cross beams with the first crown beam and the second crown beam; the supporting legs of the hoisting equipment stand on the cross beams, the cross beams play a supporting role, the cross beams disperse the weight of the hoisting equipment to the first crown beams and the second crown beams, the first crown beams and the second crown beams respectively disperse the weight to the corresponding piles of the pile group, the lower ends of the piles are fixedly connected with the rock stratum, the piles are prevented from sinking, further the supporting legs of the hoisting equipment are prevented from sinking, and the operation safety of the hoisting equipment during hoisting of heavy objects is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a construction step diagram of an embodiment of the construction method of the pile driving platform unit.
Fig. 2 is a view illustrating a construction step of S100 in fig. 1.
Fig. 3 is a view illustrating a construction step of S111 in fig. 2.
Fig. 4 is a view illustrating a construction step of S100 in fig. 1.
Fig. 5 is a view illustrating a construction step S100 of fig. 1.
Fig. 6 is a view illustrating a construction step of S100 in fig. 1.
Fig. 7 is a view illustrating a construction step of S200 in fig. 1.
Fig. 8 is a diagram of construction steps of another embodiment of S200 in fig. 1.
Fig. 9 is a view illustrating a construction step S300 of fig. 1.
Fig. 10 is a view illustrating a construction step S300 of fig. 1.
Fig. 11 is a view illustrating a construction step S300 in fig. 1.
Fig. 12 is a schematic structural view of the pile driving platform unit according to an embodiment of the construction method of the pile driving platform unit of the present invention.
Fig. 13 is a schematic structural view of the pile driving platform unit from another view point according to the construction method of the pile driving platform unit.
Fig. 14 is a schematic view of a pile structure of an embodiment of the construction method of the pile driving platform unit of the present invention.
Fig. 15 is a schematic cross-sectional structure of a pile in an embodiment of the construction method of the pile driving platform unit of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
5 | High-pressure |
| 11 | |
6 | |
| 2 | |
7 | Waist rail |
| 3 | |
8 | |
| 4 | |
9 | Bearing plate |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a construction method of a piling platform unit.
Referring to fig. 1 to 15, in an embodiment of the present invention, the construction method of the pile driving platform unit includes the following steps:
s100: two groups of single-row pile columns 1 are driven according to the depth of a rock stratum 6 in a stratum, and one end of each pile column 1 is fixedly connected with the rock stratum 6 to obtain two rows of pile column groups which are arranged at intervals; the arrangement directions of the two rows of pile column groups are parallel to each other;
s200: extending a first crown beam 2 along the arrangement direction of one row of pile column group, extending a second crown beam 3 along the arrangement direction of the other row of pile column group, and respectively fixedly connecting the first crown beam 2 and the second crown beam 3 with the upper ends of the corresponding pile column groups;
s300: arranging a plurality of cross beams 4 along the length direction of the first crown beam 2 and/or the second crown beam 3, and respectively connecting two ends of the plurality of cross beams 4 with the first crown beam 2 and the second crown beam 3.
Piling the stratum, and fixedly connecting one end of the pile column 1 with the rock stratum 6; after piling is finished, two rows of pile column groups which are arranged at intervals are obtained, and the arrangement directions of the two rows of pile column groups are parallel to each other; then, extending and arranging the first crown beam 2 along the arrangement direction of one row of pile column group, extending and arranging the second crown beam 3 along the arrangement direction of the other row of pile column group, and respectively fixedly connecting the first crown beam 2 and the second crown beam 3 with the upper ends of the corresponding pile column groups; arranging a plurality of cross beams 4 along the length direction of the first crown beam 2 and/or the second crown beam 3, and respectively connecting two ends of the plurality of cross beams 4 with the first crown beam 2 and the second crown beam 3; the supporting legs of the hoisting equipment stand on the plurality of cross beams 4, the cross beams 4 play a role in supporting the supporting legs of the hoisting equipment, the cross beams 4 disperse the weight of the hoisting equipment onto the first crown beams 2 and the second crown beams 3, the first crown beams 2 and the second crown beams 3 respectively disperse the weight onto the corresponding piles 1 of the pile group, the lower ends of the piles 1 are fixedly connected with the rock stratum 6, sinking of the piles 1 is avoided, sinking of the supporting legs of the hoisting equipment is further avoided, and the operation safety of the hoisting equipment during hoisting of heavy objects is improved.
When in use, the bottom of the hoisting equipment is provided with a plurality of piling platform units, one piling platform unit is used for supporting one supporting leg, and the number of the piling platform units is equal to that of the supporting legs of the hoisting equipment; when all the supporting legs of the hoisting equipment stand on the piling platform unit, the hoisting equipment can be ensured to be in a horizontal state, and the balance of the hoisting equipment is ensured.
Preferably, two groups of single-row piles 1 are driven according to the depth of a rock stratum 6 in a stratum, so that one end of each pile 1 is fixedly connected with the rock stratum 6 to obtain two rows of pile groups which are arranged at intervals; step S100, in which the arrangement directions of the two rows of pile groups are parallel to each other, further comprises the following steps:
s11: drilling a required pile hole by using a drilling machine, wherein the pile hole penetrates into a rock stratum by at least 1m;
s12: and pouring concrete into the pile hole, and obtaining the pile 1 after the concrete is condensed.
The cast-in-place pile can adapt to the change of various stratums, has the advantages of steel saving, low manufacturing cost, high bearing capacity, good durability and the like, does not need pile splicing, and has the characteristics of no vibration and no soil extrusion during construction. The pile 1 extends into the rock stratum 1m, and the pile 1 is fixed and supported by the rock stratum 6.
Preferably, after the step S11 of drilling the required pile hole with the drilling machine, the pile hole penetrating at least into the rock stratum 1m, the method further comprises the following steps:
s111: a steel bar structure 11 is lapped in the pile hole;
s112: and pouring concrete into the pile hole, and controlling the pouring height of the concrete to be lower than the height of the upper end of the steel bar structure 11.
The pile hole is internally lapped with a steel bar structure 11, so that the steel bar structure 11 is wound along the inner wall of the pile hole to ensure the structural rigidity in the pile 1; in addition, concrete is poured into the pile hole, the pouring height of the concrete is controlled to be smaller than the length of the steel bar structure 11, the upper end of the steel bar structure 11 is made to leak, and the steel bar structure 11 and the first crown beam 2 or the second crown beam 3 are welded and fixed.
Preferably, two groups of single-row piles 1 are driven according to the depth of a rock stratum 6 in a stratum, so that one end of each pile 1 is fixedly connected with the rock stratum 6 to obtain two rows of pile groups which are arranged at intervals; step S100, in which the arrangement directions of the two rows of pile groups are parallel to each other, further comprises the following steps:
s13: between adjacent piles 1 of the same row of pile group, on one side of the pile 1 far away from the other row of pile group, concrete slurry is sprayed into a soil layer and mixed with a soil body by a high-pressure rotating nozzle to form a continuous lapped high-pressure rotary spraying pile 5.
In the above construction steps, the high-pressure jet grouting pile 5 is used for reinforcing a soil layer, and the stability of the pile column 1 is further improved.
Preferably, two groups of single-row piles 1 are driven according to the depth of a rock stratum 6 in a stratum, so that one end of each pile 1 is fixedly connected with the rock stratum 6 to obtain two rows of pile groups which are arranged at intervals; step S100 that the arrangement directions of the two columns of pile groups are mutually parallel further comprises the following steps:
s14: the rock formation 6 comprises a slightly weathered or undifferentiated marbles.
The marble layer is generally divided into undifferentiated, slightly weathered, medium weathered, strongly weathered and completely weathered rock layers, the undifferentiated rock layer is generally fresh and occasionally weathered, the slightly weathered structure is basically unchanged, only the joint surface is rendered or slightly discolored, and a small amount of weathered cracks exist; and the medium weathering structure is partially destroyed, secondary minerals are arranged along the joint surface, the weathering cracks develop, and the rock mass is cut into rock blocks. The pickaxe is difficult to dig, and the dry drill is difficult to drill. It can be seen that the moderately weathered marble has been blocked, the integrity is low, and the fixing effect on the pile is low; the primary pile 1 should penetrate into at least a slightly weathered or undifferentiated marbles to ensure the stability of the pile 1.
Preferably, two groups of single-row piles 1 are driven according to the depth of a rock stratum 6 in the stratum to obtain two rows of pile groups arranged in sequence; after the step S100 of penetrating one end of each pile 1 into the rock formation 6, the method further includes the steps of:
s15: the pile columns 1 in two rows of pile column groups arranged in sequence are in one-to-one correspondence, one end of a waist beam 7 is welded with the pile columns 1 in one row of pile column group, and the other end of the waist beam 7 is welded with the corresponding pile columns 1 in the other row of pile column group.
Preferably, the step of extending and arranging the first crown beam 2 along the arrangement direction of one column of pile group, extending and arranging the second crown beam 3 along the arrangement direction of the other column of pile group, and respectively fixedly connecting the first crown beam 2 and the second crown beam 3 with the upper end of the corresponding pile group S200 further comprises the following steps:
s21: and respectively welding and fixing the first crown beam 2 and/or the second crown beam 3 with the tops of the steel bar structures 11 of the pile column groups in the corresponding columns.
S22: digging a first crown beam pouring groove and a second crown beam pouring groove on the surface of the ground, wherein the steel bar structures 11 of the pile column groups in the corresponding rows extend into the first crown beam pouring groove and the second crown beam pouring groove;
s23: and pouring concrete into the first crown beam pouring groove and the second crown beam pouring groove.
When the first crown beam 2 and/or the second crown beam 3 are respectively welded and fixed with the tops of the steel bar structures 11 of the pile column groups in the corresponding rows, the first crown beam 2 and/or the second crown beam 3 are made of steel pipe materials; the cross beam 4 and the first crown beam or the second crown beam are also fixed by welding; when the first crown beam 2 and/or the second crown beam 3 are connected by casting, the cross beam 4 is also connected with the first crown beam 2 or the second crown beam 3 by casting.
Preferably, the step S300 of arranging the plurality of cross beams 4 in a row along the length direction of the first crown beam 2 and/or the second crown beam 3 and connecting two ends of the plurality of cross beams 4 to the first crown beam 2 and the second crown beam 3, further includes the steps of:
s31: the distance between adjacent cross beams 4 is less than 50mm.
The plurality of cross beams 4 support the supporting legs of the hoisting equipment, and when the distance between the plurality of cross beams 4 is smaller than the width of the supporting legs of the hoisting equipment, the inclination of the gap between the supporting legs and the cross beams 4 can be avoided, and the supporting stability of the piling platform unit to the equipment in the piling platform unit is improved.
Preferably, the step S300 of arranging a plurality of cross beams 4 in the length direction of the first crown beam 2 and/or the second crown beam 3 and connecting two ends of the plurality of cross beams 4 to the first crown beam 2 and the second crown beam 3, respectively, further includes the steps of:
s32: and laying bearing plates 9 on the tops of the plurality of cross beams 4.
Preferably, after the step S300 of arranging the plurality of cross beams 4 in the length direction of the first crown beam 2 and/or the second crown beam 3 and connecting two ends of the plurality of cross beams 4 to the first crown beam 2 and the second crown beam 3, respectively, the method further includes the following steps:
s33: after the two ends of the plurality of cross beams 4 are respectively connected with the first crown beam 2 and the second crown beam 3, the tops of the first crown beam 2, the second crown beam 3 and the cross beams 4 are flush with the surface of the ground.
The first crown beam 2 and the second crown beam 3 are used for connecting the discrete piles 1 in the same column together, have the functions of restraining the piles 1 from generating horizontal displacement and restraining the deformation of the tops of the piles 1, and can enable the discrete piles 1 to form a coacting whole, and in addition, the crown beams also have the supporting function and are main flexural members. The cross beams 4 are transversely arranged along the arrangement direction vertical to the pile columns 1, are fixedly connected with the crown beams and have the bearing function.
The technical scheme of the invention is that a pile is driven on the stratum, and one end of a pile column 1 is fixedly connected with a rock stratum 6; after piling is finished, two rows of pile column groups which are arranged at intervals are obtained, and the arrangement directions of the two rows of pile column groups are parallel to each other; then, extending and arranging the first crown beam 2 along the arrangement direction of one row of pile column group, extending and arranging the second crown beam 3 along the arrangement direction of the other row of pile column group, and respectively fixedly connecting the first crown beam 2 and the second crown beam 3 with the upper ends of the corresponding pile column groups; arranging a plurality of cross beams 4 along the length direction of the first crown beam 2 and/or the second crown beam 3, and respectively connecting two ends of the plurality of cross beams 4 with the first crown beam 2 and the second crown beam 3; the supporting legs of the hoisting equipment stand on the plurality of cross beams 4, the cross beams 4 play a role in supporting the supporting legs of the hoisting equipment, the cross beams 4 disperse the weight of the hoisting equipment onto the first crown beams 2 and the second crown beams 3, the first crown beams 2 and the second crown beams 3 respectively disperse the weight onto the corresponding piles 1 of the pile group, the lower ends of the piles 1 are fixedly connected with the rock stratum 6, sinking of the piles 1 is avoided, sinking of the supporting legs of the hoisting equipment is further avoided, and the operation safety of the hoisting equipment during hoisting of heavy objects is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method of constructing a pile driving platform unit, comprising the steps of:
driving two groups of single-row pile columns according to the depth of a rock stratum in the stratum, and enabling one end of each pile column to be fixedly connected with the rock stratum so as to obtain two rows of pile column groups which are arranged at intervals; the arrangement directions of the two columns of pile groups are parallel to each other;
extending a first crown beam along the arrangement direction of one row of pile column group, extending a second crown beam along the arrangement direction of the other row of pile column group, and respectively fixedly connecting the first crown beam and the second crown beam with the upper ends of the corresponding pile column groups;
arranging a plurality of cross beams along the length direction of the first crown beam and/or the second crown beam, and respectively connecting two ends of the plurality of cross beams with the first crown beam and the second crown beam.
2. A construction method of a pile driving platform unit according to claim 1, wherein the step of arranging a plurality of beams in a longitudinal direction of the first and/or second crown beams and connecting both ends of the plurality of beams to the first and second crown beams, respectively, further comprises the steps of:
the distance between adjacent beams is less than 50mm.
3. A construction method of a pile driving platform unit according to claim 1, wherein the step of arranging a plurality of beams in a longitudinal direction of the first and/or second crown beams and connecting both ends of the plurality of beams to the first and second crown beams, respectively, further comprises the steps of:
and laying bearing plates on the tops of the plurality of cross beams.
4. A method of constructing a pile driving platform unit according to any one of claims 1 to 3, wherein two single rows of piles are driven according to the depth of the rock formation in the formation, such that one end of each pile is fixedly connected to the rock formation to obtain two rows of spaced-apart pile groups; the method comprises the following steps of arranging two columns of pile groups in parallel, wherein the method comprises the following steps:
drilling a required pile hole by using a drilling machine, wherein the pile hole penetrates into a rock stratum by at least 1m;
and pouring concrete into the pile hole, and obtaining the pile after the concrete is condensed.
5. The method of constructing a pile platform unit according to claim 4, wherein the step of drilling the desired pile hole with a drill further comprises the steps of, after the step of drilling the pile hole at least 1m into the rock formation:
a steel bar structure is lapped in the pile hole;
and pouring concrete into the pile hole, and controlling the pouring height of the concrete to be lower than the height of the upper end of the steel bar structure.
6. The pile driving platform unit construction method according to claim 5, wherein the step of extending a first crown beam in the direction of arrangement of one of the pile group columns and a second crown beam in the direction of arrangement of the other pile group column and fixedly connecting the first crown beam and the second crown beam to the upper ends of the corresponding pile group column, respectively, further comprises the steps of:
respectively welding and fixing the first crown beam and/or the second crown beam with the tops of the steel bar structures of the pile column groups in the corresponding rows; or the like, or, alternatively,
digging a first crown beam pouring groove and a second crown beam pouring groove on the surface of the ground, wherein the steel bar structures of the pile column groups of the corresponding columns extend into the first crown beam pouring groove and the second crown beam pouring groove;
and pouring concrete into the first crown beam pouring groove and the second crown beam pouring groove.
7. A method of constructing a pile driving platform unit according to any one of claims 1 to 3, wherein two single rows of piles are driven according to the depth of the rock formation in the formation, such that one end of each pile is fixedly connected to the rock formation to obtain two rows of spaced-apart pile groups; the step that the arrangement directions of two rows of pile column groups are parallel to each other further comprises the following steps:
between adjacent piles in the same pile group, on one side of the pile far away from the other pile group, the concrete slurry is sprayed into the soil layer and mixed with the soil body by a high-pressure rotating nozzle to form a continuous lapped high-pressure rotary spraying pile.
8. A method of constructing a pile driving platform unit according to any one of claims 1 to 3, wherein two single rows of piles are driven according to the depth of the rock formation in the formation, such that one end of each pile is fixedly connected to the rock formation to obtain two rows of spaced-apart pile groups; the method comprises the following steps of arranging two columns of pile groups in parallel, wherein the method comprises the following steps:
the rock formation comprises a slightly weathered or slightly weathered marble rock layer.
9. A method of constructing a pile driving platform unit according to any one of claims 1 to 3, wherein two single rows of piles are driven according to the depth of the rock formation in the formation, such that one end of each pile is fixedly connected to the rock formation to obtain two rows of spaced-apart pile groups; after the step of arranging the two columns of pile column groups in parallel, the method further comprises the following steps of:
the two rows of pile columns in the pile column groups arranged in sequence are in one-to-one correspondence, one end of the waist beam is fixed with the pile columns in one row of the pile column groups, and the other end of the waist beam is fixed with the corresponding pile columns in the other row of the pile column groups.
10. A construction method of a pile driving platform unit according to any one of claims 1 to 3, wherein after the step of arranging the plurality of beams in a longitudinal direction of the first and/or second crown beams such that both ends of the plurality of beams are connected to the first and second crown beams, respectively, the method further comprises the steps of:
and after the two ends of the plurality of cross beams are respectively connected with the first crown beam and the second crown beam, the tops of the first crown beam, the second crown beam and the cross beams are flush with the surface of the ground layer.
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| CN202211219229.5A CN115492102A (en) | 2022-09-30 | 2022-09-30 | Construction method of piling platform unit |
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| CN202211219229.5A CN115492102A (en) | 2022-09-30 | 2022-09-30 | Construction method of piling platform unit |
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| CN202211219229.5A Pending CN115492102A (en) | 2022-09-30 | 2022-09-30 | Construction method of piling platform unit |
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| CN106284348A (en) * | 2016-08-25 | 2017-01-04 | 中交第二航务工程局有限公司 | The construction method of pile sinking is carried out based on assembling mobile platform |
| CN207176723U (en) * | 2017-09-05 | 2018-04-03 | 华电重工股份有限公司 | A kind of embedding rock single pile of offshore wind farm and its construction system |
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| CN112523213A (en) * | 2020-12-09 | 2021-03-19 | 中国葛洲坝集团建设工程有限公司 | Combined type unit steel structure crane piling platform capable of being rapidly disassembled and assembled and construction method |
| CN215211151U (en) * | 2021-05-28 | 2021-12-17 | 中煤科工重庆设计研究院(集团)有限公司 | Overhead supporting structure based on soil retaining structure |
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| CN106284348A (en) * | 2016-08-25 | 2017-01-04 | 中交第二航务工程局有限公司 | The construction method of pile sinking is carried out based on assembling mobile platform |
| CN207176723U (en) * | 2017-09-05 | 2018-04-03 | 华电重工股份有限公司 | A kind of embedding rock single pile of offshore wind farm and its construction system |
| CN111395354A (en) * | 2020-03-20 | 2020-07-10 | 中国建筑西南勘察设计研究院有限公司 | Multi-stage large-row-spacing pile combined supporting structure and foundation pit excavation method thereof |
| CN112523213A (en) * | 2020-12-09 | 2021-03-19 | 中国葛洲坝集团建设工程有限公司 | Combined type unit steel structure crane piling platform capable of being rapidly disassembled and assembled and construction method |
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