CN111734309A - Guiding device for construction of SMW method pile, and SMW method pile construction equipment and method - Google Patents
Guiding device for construction of SMW method pile, and SMW method pile construction equipment and method Download PDFInfo
- Publication number
- CN111734309A CN111734309A CN202010715664.1A CN202010715664A CN111734309A CN 111734309 A CN111734309 A CN 111734309A CN 202010715664 A CN202010715664 A CN 202010715664A CN 111734309 A CN111734309 A CN 111734309A
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- Prior art keywords
- smw
- construction
- drill rod
- pile
- guide
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
- E21B15/045—Hydraulic, pneumatic or electric circuits for their positioning
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
Abstract
The invention discloses a guiding device for construction of a pile in an SMW (soil mixing wall) construction method, which comprises at least one supporting mechanism capable of supporting a drill rod, wherein a guiding part is arranged on the supporting mechanism, the guiding part is a straight groove or a straight through hole, the drill rod can penetrate through the guiding part and move along the guiding part, and an included angle is formed between the extending direction of the guiding part and the vertical direction; also discloses a construction device of the pile in the SMW construction method, which comprises a drilling and digging stirring device and the guide device; the construction method of the pile in the SMW method is realized by the pile construction equipment in the SMW method. By adopting the technical scheme, the angle inclination setting of the drill rod can be realized, so that the drill rod can be obliquely drilled into the foundation, thereby facilitating construction under an overhead bridge, in narrow areas or in other complex environments, enlarging the application range of the SMW method and limitedly solving the problems that construction is difficult and construction cannot be carried out under the working conditions.
Description
Technical Field
The invention relates to a guiding device for construction of a pile in an SMW (soil mixing wall) method, pile construction equipment in the SMW method and a construction method, and belongs to the technical field of construction equipment and construction methods.
Background
The SMW construction method is also called as a novel cement mixing pile wall, namely H-shaped steel and the like (mostly H-shaped steel, Larsen steel sheet piles, steel pipes and the like) are inserted into a cement pile to combine the bearing load with the seepage prevention and water retaining, so that the enclosure wall with a supporting structure with the functions of bearing force and seepage prevention is formed. In the construction of the SMW construction method, a single-shaft or multi-shaft type drilling and digging mixer is used for drilling and digging to a certain depth on site, the drilling and digging mixer comprises a drill bit component and a hoisting component for hoisting a drill bit, the drill bit component comprises a drill rod, a power head for driving the drill rod to rotate and a sprinkling irrigation device, cement series reinforcers are sprayed out by the sprinkling irrigation device during drilling and digging to be repeatedly mixed and stirred with foundation soil, overlapped overlapping construction is adopted among all construction units, then H-shaped steel or steel plates are inserted into the cement soil mixture through the hoisting component before the cement soil mixture is hardened to serve as stress reinforcing section bars until the cement is hardened, and a continuous, complete and seamless underground wall body with certain strength and rigidity is formed. In deep foundation pit engineering constructed in modern cities, construction is often close to the red line of a building, and the SMW construction method has considerable advantages in this respect, and construction can be carried out when the central line of the SMW construction method is 80 cm away from the wall surface of the building. The underground continuous wall is determined by the characteristics of the underground continuous wall, a large amount of slurry is formed during construction and needs to be transported outwards, and the SMW construction method only has a small amount of earthwork to be transported outwards when the underground continuous wall is grooved. The SMW construction method has simple structure and high construction speed, and can greatly shorten the construction period. The SMW construction method is used for separating the enclosure structure from the main structure, the side wall of the main structure can be constructed to be externally waterproof, and compared with an underground continuous wall, the SMW construction method is better in structural integrity and waterproof performance, and can reduce the later maintenance cost. The construction steps of the SMW method generally comprise guide ditch excavation, guide rail placement, SMW drilling and stirring, stress reinforcement section bar (H-shaped steel) placement, stress reinforcement section bar fixation, waste soil transportation and the like. The SMW construction method has the advantages of simple pile structure, good water-stopping performance, short construction period, low manufacturing cost and small environmental pollution, and is widely suitable for deep foundation pit engineering in cities. However, since the environment is complicated in urban construction, for example, when constructing in a limited-height area such as under a viaduct or in a narrow area in the field, it is not always possible to stop the drilling/stirring machine at an appropriate position, and thus construction is not possible.
Disclosure of Invention
Therefore, an object of the present invention is to provide a guide device for SMW method pile construction, and SMW method pile construction equipment having the guide device, and a SMW method pile construction method, which can provide more selectable parking areas to construction equipment to improve adaptability of construction equipment in a complex environment.
In order to achieve the above purpose, the guide device for construction of piles in the SMW method according to the present invention comprises at least one support mechanism capable of supporting a drill rod, wherein the support mechanism is provided with a guide portion, the guide portion is a straight groove or a straight hole, the drill rod can pass through the guide portion and move along the guide portion, and the extending direction of the guide portion forms an angle with the vertical direction.
The guiding device for construction of the SMW construction method pile further comprises an angle adjusting mechanism, the supporting mechanism is installed on the angle adjusting mechanism, and an included angle between the extending direction of the guiding portion and the vertical direction can be adjusted through the angle adjusting mechanism.
The angle adjusting mechanism comprises a first hydraulic cylinder, one end of the first hydraulic cylinder is hinged to the supporting seat, and the other end of the first hydraulic cylinder is hinged to one side of the supporting mechanism directly or through a connecting rod assembly; the other side of the supporting mechanism is hinged on the bracket.
The angle adjusting mechanism comprises a second hydraulic cylinder, one end of the support, far away from the supporting mechanism, is hinged to the supporting seat, the middle of the support is hinged to one end of the second hydraulic cylinder, and the other end of the second hydraulic cylinder is hinged to the mounting base.
The guiding device for construction of the SMW construction method pile further comprises a moving mechanism, and the supporting mechanism is arranged on the moving mechanism.
The moving mechanism comprises an excavator.
The supporting mechanism is a plurality of supporting mechanisms arranged side by side.
The supporting mechanism is cylindrical.
The invention also provides construction equipment for the piles in the SMW method, which comprises a drilling and stirring device and the guide device for the construction of the piles in the SMW method; the drilling and excavating stirring device comprises a drill bit assembly and a hoisting assembly, wherein the drill bit assembly is detachably arranged on the hoisting assembly so as to be hoisted or lowered by the hoisting assembly; the drill bit assembly comprises a drill rod and a power head for driving the drill rod to rotate.
The hoisting assembly comprises a crane.
The SMW construction method pile construction equipment further comprises an auxiliary pulling rope which can be connected to the drill bit assembly.
The invention also provides a construction method of the pile in the SMW construction method, which is realized by the construction equipment of the pile in the SMW construction method, and comprises the following steps:
(1) one end of a power head of the drill bit assembly is hoisted through the hoisting assembly, and one side of the drill rod, which is far away from the power head, is arranged in a guide part of the support mechanism, so that an included angle is formed between the drill rod and the vertical direction;
(2) the drill bit assembly is placed downwards by the hoisting assembly, so that the drill rod moves downwards along the guide part and obliquely drills into the foundation, and meanwhile, slurry is sprayed out through the sprinkling irrigation device to be mixed and stirred with foundation soil;
(3) hoisting one end of the stress reinforcing section bar, and placing the other end of the stress reinforcing section bar in a guide part of the support mechanism so as to form an included angle between the stress reinforcing section bar and the vertical direction;
(4) and (3) placing the stress reinforcing section bar so as to insert the stress reinforcing section bar into the mixing and stirring area formed in the step (2).
By adopting the technical scheme, the guide device for construction of the pile in the SMW method, the pile construction equipment in the SMW method and the pile construction method in the SMW method can realize the inclined arrangement of the angle of the drill rod, so that the drill rod can be obliquely drilled into the foundation, and the hoisting assembly can be stopped at a position far away from a drilling point in the construction process of the pile in the SMW method, thereby facilitating the construction under a high bridge, in a narrow area or in other complex environments, enlarging the application range of the SMW method and limitedly solving the problems that the construction is difficult and the construction cannot be carried out under the working conditions.
Drawings
Fig. 1 is a schematic perspective view of a construction apparatus for a pile according to an SMW method according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of fig. 1.
Fig. 3 is a schematic view of a construction state in which the drill bit is driven into the ground.
Fig. 4 is a schematic view showing a construction state in which the stress reinforcing section is lifted.
FIG. 5 is a schematic view of the construction state of placing the stress reinforcing section bar.
Fig. 6 is a schematic view of an embodiment of a guide apparatus for SMW process pile construction.
Fig. 7 is a schematic view of another embodiment of a guide apparatus for pile construction by the SMW method.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in fig. 6, the guide device for pile construction in the SMW method of the present invention includes a support mechanism 11 capable of supporting a drill rod, an angle adjustment mechanism 12, and a movement mechanism 13.
The supporting mechanism 11 is provided with a guide portion 110, in this embodiment, the supporting mechanism 11 is cylindrical, so that the guide portion 110 is a through hole, a drill rod can pass through the guide portion 110 and move along the guide portion 110, an included angle is formed between the extending direction of the guide portion 110 and the vertical direction, the included angle is an included angle which the drill rod enters a foundation during drilling, and the included angle can be set according to actual construction conditions.
The supporting mechanism 11 is installed on the angle adjusting mechanism 12, and an included angle between the extending direction of the guiding portion 110 and the vertical direction can be adjusted through the angle adjusting mechanism 12. In this embodiment, the angle adjusting mechanism 12 includes a first hydraulic cylinder 121 and a second hydraulic cylinder 122, one end of the first hydraulic cylinder 121 is hinged to the supporting seat 123, and the other end is hinged to one side of the supporting mechanism 11 through a connecting rod assembly 124; the other side of the support mechanism 11 is hinged to a bracket 125. One end of the support 125, which is far away from the support mechanism 11, is hinged to the support base 123, the middle portion of the support 125 is hinged to one end of the second hydraulic cylinder 122, the other end of the second hydraulic cylinder 122 is hinged to a mounting base (not shown in the figure), and the mounting base is fixed on the moving mechanism 13. The inclination angle of the supporting mechanism 11 can be adjusted by the first hydraulic cylinder 121, and the second hydraulic cylinder 122 can drive the supporting base 123, the connecting rod assembly 124, the first hydraulic cylinder 121 and the supporting mechanism 11 to move integrally, so as to adjust the height of the supporting mechanism 11.
The support mechanism 11 and the angle adjustment mechanism 12 are provided on the moving mechanism 13. In the present embodiment, the moving mechanism 13 includes an excavator.
In another embodiment, as shown in fig. 7, the number of the supporting mechanisms 11 is 3, and each supporting mechanism 11 is provided with a guide part forming a straight groove shape to support the drill rod in a semi-surrounding shape, so that the drill rod can pass through the straight groove.
The invention also provides construction equipment for the piles in the SMW construction method, which comprises a drilling and digging stirring device 2 and the guide device 1; the drilling and excavating stirring device 2 comprises a drill bit assembly 21 and a hoisting assembly 22, wherein the hoisting assembly 22 can be a crane, the drill bit assembly 21 is arranged at the end part of a crane arm, and the drill bit assembly 21 can be driven to move by controlling the extension and the swing of the crane arm. As a preferred embodiment, the construction equipment of the SMW method pile of the present invention comprises two parts, i.e., a crane and an excavator, or at least two parts, i.e., a crane and an excavator, so that the construction equipment has high maneuvering characteristics and can be miniaturized.
The drill bit assembly 21 is detachably mounted on the hoisting assembly 22 so as to be capable of being lifted or lowered by the hoisting assembly 22; the drill head assembly 21 includes a drill rod 211 and a power head 212 for driving the drill rod 211 to rotate.
The construction equipment for the SMW method pile further comprises an auxiliary pulling rope 23 which can be connected to the drill bit assembly 21, and if the drill pipe 211 cannot move downwards smoothly during construction, the auxiliary pulling rope 23 is pulled downwards by an excavating arm of an excavator, so that the drill bit assembly 21 can be assisted to move downwards. Similarly, when the stress reinforcing section 3 is lowered, the auxiliary pulling rope 23 can still assist the downward movement of the stress reinforcing section 3.
The invention also provides a construction method of the pile in the SMW construction method, which is realized by the construction equipment of the pile in the SMW construction method, and comprises the following steps:
firstly, one end of the power head 212 of the drill bit assembly 21 is lifted by the lifting assembly 22, and the side of the drill rod 211 far away from the power head 212 is placed in the guide part 110 of the support mechanism 11, so that the drill rod 211 forms an angle with the vertical direction. The position and angle of the support mechanism 11 may be set, and then the drill bit assembly 21 is lifted and moved by dropping the assembly, so that the lower end of the drill rod 211 is lowered in alignment with the guide 110; it is also possible to drill after placing the drill rod 211 in the guide 110 and moving the support mechanism 11 to a predetermined position and a predetermined angle.
The hoisting assembly 22 lowers the drill bit assembly 21 so that the drill rod 211 moves down along the guide part 110 and obliquely drills into the ground, and simultaneously, the slurry sprayed by the sprinkling irrigation device is mixed and stirred with the foundation soil. After stirring, the drill bit assembly 21 is lifted, the drill bit assembly 21 is moved down from the lifting assembly 22, and meanwhile, the stress reinforcing section bar 3 is installed on the lifting assembly 22, one end of the stress reinforcing section bar is lifted, and the other end of the stress reinforcing section bar is arranged in the guide portion 110 of the supporting mechanism 11, so that an included angle is formed between the stress reinforcing section bar 3 and the vertical direction.
The stress reinforcing section bar 3 is lowered and inserted into the mixing and stirring area.
By adopting the technical scheme, the guide device 1 for construction of the pile in the SMW method, the pile construction equipment in the SMW method and the pile construction method in the SMW method can realize the inclined arrangement of the angle of the drill rod 211, so that the drill rod 211 can be obliquely drilled into a foundation, and the hoisting assembly 22 can be stopped at a position far away from a drilling point in the pile construction process in the SMW method, thereby facilitating the construction under an overhead bridge, in a narrow area or in other complex environments, enlarging the application range of the SMW method and limitedly solving the problems of difficult construction and incapability of construction under the working conditions.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A guider for construction of SMW worker method stake is characterized in that: the drill rod supporting mechanism comprises at least one supporting mechanism capable of supporting a drill rod, a guide portion is arranged on the supporting mechanism and is a straight groove or a straight through hole, the drill rod can penetrate through the guide portion and move along the guide portion, and an included angle is formed between the extending direction of the guide portion and the vertical direction.
2. The guide apparatus for SMW process pile construction as claimed in claim 1, wherein: the angle adjusting mechanism is arranged on the support mechanism, and the angle adjusting mechanism can adjust the included angle between the extending direction of the guide part and the vertical direction.
3. The guide apparatus for SMW process pile construction as claimed in claim 2, wherein: the angle adjusting mechanism comprises a first hydraulic cylinder, one end of the first hydraulic cylinder is hinged to the supporting seat, and the other end of the first hydraulic cylinder is hinged to one side of the supporting mechanism directly or through a connecting rod assembly; the other side of the supporting mechanism is hinged on the bracket.
4. The guide apparatus for SMW construction of piles as set forth in claim 3, wherein: the angle adjusting mechanism comprises a second hydraulic cylinder, one end of the support, far away from the supporting mechanism, is hinged to the supporting seat, the middle of the support is hinged to one end of the second hydraulic cylinder, and the other end of the second hydraulic cylinder is hinged to the mounting base.
5. The guide apparatus for SMW construction according to any one of claims 1 to 4, wherein: the support mechanism is arranged on the moving mechanism.
6. The guide apparatus for SMW construction of piles as set forth in claim 5, wherein: the moving mechanism comprises an excavator.
7. The guide apparatus for SMW construction according to any one of claims 1 to 4, wherein: the supporting mechanism is a plurality of supporting mechanisms arranged side by side.
8. An SMW process pile construction apparatus comprising a drilling and stirring device and a guide device for SMW process pile construction according to any one of claims 1 to 7; the drilling and excavating stirring device comprises a drill bit assembly and a hoisting assembly, wherein the drill bit assembly is detachably arranged on the hoisting assembly so as to be hoisted or lowered by the hoisting assembly; the drill bit assembly comprises a drill rod and a power head for driving the drill rod to rotate.
9. The SMW method pile construction apparatus of claim 8, wherein: the SMW construction method pile construction equipment further comprises an auxiliary pulling rope which can be connected to the drill bit assembly.
10. An SMW method pile construction method implemented by the SMW method pile construction apparatus of claim 8 or 9, comprising the steps of:
(1) one end of a power head of the drill bit assembly is hoisted through the hoisting assembly, and one side of the drill rod, which is far away from the power head, is arranged in a guide part of the support mechanism, so that an included angle is formed between the drill rod and the vertical direction;
(2) the drill bit assembly is placed downwards by the hoisting assembly, so that the drill rod moves downwards along the guide part and obliquely drills into the foundation, and meanwhile, slurry is sprayed out through the sprinkling irrigation device to be mixed and stirred with foundation soil;
(3) hoisting one end of the stress reinforcing section bar, and placing the other end of the stress reinforcing section bar in a guide part of the support mechanism so as to form an included angle between the stress reinforcing section bar and the vertical direction;
(4) and (3) placing the stress reinforcing section bar so as to insert the stress reinforcing section bar into the mixing and stirring area formed in the step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010715664.1A CN111734309A (en) | 2020-07-23 | 2020-07-23 | Guiding device for construction of SMW method pile, and SMW method pile construction equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010715664.1A CN111734309A (en) | 2020-07-23 | 2020-07-23 | Guiding device for construction of SMW method pile, and SMW method pile construction equipment and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111734309A true CN111734309A (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010715664.1A Pending CN111734309A (en) | 2020-07-23 | 2020-07-23 | Guiding device for construction of SMW method pile, and SMW method pile construction equipment and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111734309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006175A (en) * | 2021-03-05 | 2021-06-22 | 江西省水利科学院 | Spiral underground diaphragm wall construction device and method |
| CN113073951A (en) * | 2021-04-21 | 2021-07-06 | 天津建岩岩土工程有限公司 | Construction assembly for hoisting drill bit |
-
2020
- 2020-07-23 CN CN202010715664.1A patent/CN111734309A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006175A (en) * | 2021-03-05 | 2021-06-22 | 江西省水利科学院 | Spiral underground diaphragm wall construction device and method |
| CN113073951A (en) * | 2021-04-21 | 2021-07-06 | 天津建岩岩土工程有限公司 | Construction assembly for hoisting drill bit |
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