CN113550309A - Construction method of multi-pile-hole combined steel platform capable of preventing slurry from overflowing - Google Patents
Construction method of multi-pile-hole combined steel platform capable of preventing slurry from overflowing Download PDFInfo
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- CN113550309A CN113550309A CN202110987603.5A CN202110987603A CN113550309A CN 113550309 A CN113550309 A CN 113550309A CN 202110987603 A CN202110987603 A CN 202110987603A CN 113550309 A CN113550309 A CN 113550309A
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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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
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Abstract
The invention discloses a construction method of a multi-pile hole combined steel platform capable of preventing mud from overflowing, which comprises the following steps: excavating a foundation pit; sinking a steel casing at the design position of each pile hole in the foundation pit; pile hole cover plates are sleeved at the upper end parts of the steel casing cylinders respectively, and a combined type mud tank is laid to communicate the pile hole cover plates with each other to form a multi-pile hole combined steel platform; laying prefabricated concrete slabs in the residual spaces of the adjacent pile hole cover plates; hoisting prefabricated concrete sleeper beams around the periphery of the multi-pile-hole combined steel platform and installing drilling pile machines on the prefabricated concrete sleeper beams; and controlling the drilling pile machine to sequentially drill and excavate the soil body in each steel casing, and enabling the generated slurry to flow into the combined slurry groove through the pile hole cover plate to be uniformly collected and processed. The invention has the advantages that: the multi-pile-hole combined steel platform is convenient to install and construct, can be used in combination with a shallow foundation pit of a construction site, can effectively guide and collect slurry in a circulating drilling process, and avoids slurry seepage overflow of the construction site.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to a construction method of a multi-pile-hole combined steel platform capable of preventing slurry from overflowing.
Background
Under the common conditions, the construction scale of urban expressways is large, the number of cast-in-situ bored piles is large, and mud seepage is easily caused by earth and stone due to the influence of mechanical vibration in the construction process of circular hole forming, so that the urban expressways are extended in the field; if the slurry is in a dry state, the slurry is solidified to form raised dust; in a wet state, the slurry is mixed with on-site soil and stone, so that the on-site landscape is dirty, disordered and poor, and the civilized construction requirements are seriously violated.
Therefore, mud handling solutions should be considered in the design of the drilling rig.
Disclosure of Invention
The invention aims to provide a construction method of a multi-pile-hole combined steel platform capable of preventing mud from overflowing, which is characterized in that pile hole cover plates are respectively arranged at a plurality of positions to be piled and are communicated with each other through a combined mud groove, so that the situation that mud on a construction site seeps and overflows in the process of circularly forming holes is prevented.
The purpose of the invention is realized by the following technical scheme:
a construction method of a multi-pile hole combined steel platform capable of preventing slurry from overflowing is characterized by comprising the following steps: excavating a foundation pit; sinking a steel casing at the design position of each pile hole in the foundation pit; pile hole cover plates are sleeved at the upper end parts of the steel casing cylinders respectively, and combined type mud tanks are laid to communicate the pile hole cover plates with each other to form a multi-pile-hole combined steel platform; laying prefabricated concrete slabs in the residual spaces of the adjacent pile hole cover plates; hoisting prefabricated concrete sleeper beams around the periphery of the pile hole steel platform and installing a drilling pile machine on the prefabricated concrete sleeper beams; and controlling the drilling pile machine to sequentially drill and excavate the soil body in each steel casing, and enabling the generated slurry to flow into the combined slurry tank through the pile hole cover plate to be collected and processed in a unified manner.
The center of the pile hole cover plate is provided with a through hole which vertically penetrates through the pile hole cover plate, the through hole of the pile hole cover plate is sleeved on the steel casing, and clay or mortar is filled in a gap between the inner wall surface of the through hole of the pile hole cover plate and the outer wall surface of the steel casing.
The pile hole cover plate comprises a rectangular frame and a circular steel cylinder arranged at the center of the rectangular frame, and the outer wall surface of the circular steel cylinder is fixedly connected with the inner wall surface of the rectangular frame through a plurality of vertical stiffening ribs and horizontal stiffening plates.
A connecting channel is arranged between each combined type mud groove and at least one side wall surface of each pile hole cover plate, and an openable sealing door is arranged at the connecting channel; the connecting channel is arranged between the round steel cylinder and the rectangular frame, and vertical slots are arranged on two side wall surfaces of the connecting channel for the upper opening and the lower opening of the sealing door.
The top surface of a circular steel cylinder with rectangular frame's top surface flushes, the lower bottom surface protrusion of a circular steel cylinder in rectangular frame's lower bottom surface, the upper end protrusion of a steel casing in the bottom of foundation ditch, wherein, the steel casing upper end protrusion in the height of foundation ditch bottom with bottom surface protrusion in the bottom height of rectangular frame is the same under the circular steel cylinder, just the lower part bulge suit of a circular steel cylinder on the upper portion bulge of a steel casing.
The combined type mud pit comprises a plurality of straight pit sections and a plurality of turning pit sections, the adjacent straight pit sections are communicated through the turning pit sections, and the turning pit sections are communicated with the connecting channels on the pile hole cover plate.
The steering groove section is cross-shaped and is provided with notches pointing to four directions, the two notches on the steering groove section are respectively sleeved with the notches of the straight groove section, each notch is U-shaped, a first cross beam is arranged on the upper surface of each notch, and a vertical clamping groove is formed in the first cross beam to clamp the side wall surfaces of the two sleeved notches; turn to two other on the groove section the notch is inserted respectively and is established in the pile hole apron the connect channel, turn to on the groove section the notch and connect channel all is the U type form, connect channel's last surface mounting is fixed with the second crossbeam just be provided with downwardly extending's limiting plate on the second crossbeam, the both sides of limiting plate paste tightly turn to the groove section's notch internal face in order to constitute spacing fixed.
The steering groove section is T-shaped and is provided with notches pointing to three directions, one notch on the steering groove section is sleeved with the notch of the straight groove section, the two notches are U-shaped, a first cross beam is arranged on the upper surface of each notch, and a vertical clamping groove is formed in the first cross beam to clamp the side wall surfaces of the two sleeved notches; turn to two other on the groove section the notch is inserted respectively and is established in the pile hole apron the connect channel, turn to on the groove section the notch and connect channel all is the U type form, connect channel's last surface mounting is fixed with the second crossbeam just be provided with downwardly extending's limiting plate on the second crossbeam, the both sides of limiting plate paste tightly turn to the groove section's notch internal face in order to constitute spacing fixed.
A vertical plate is arranged on the first cross beam, and two side edges of the vertical plate are tightly attached to the inner wall surface of the notch; support ribs are respectively arranged on two outer sides of the first cross beam and are tightly attached to the outer wall surface of the notch; the vertical plate and the two support ribs jointly form the vertical clamping groove in the first cross beam.
The invention has the advantages that: the multi-pile hole steel platform is convenient to install and construct, is combined with a shallow foundation pit of a construction site, can effectively guide and collect slurry in a circulating drilling process, and avoids slurry seepage overflow of the construction site.
Drawings
FIG. 1 is a three-dimensional view of a bored pile combined steel platform for preventing slurry from overflowing in the present invention;
FIG. 2 is a plan view of a bored pile combined steel platform for preventing slurry overflow according to the present invention;
FIG. 3 is a schematic view of the connection between the pile hole cover plate and the turning groove segment according to the present invention;
FIG. 4 is a schematic view of the connection between a turning groove segment and a straight groove segment in the present invention;
FIG. 5 is a side view of the excavation of a foundation pit and the sinking of a steel casing according to the present invention;
FIG. 6 is a plan view of the excavation of a foundation pit and the sinking of a steel casing according to the present invention;
FIG. 7 is a side view of the multi-pile hole assembled steel platform of the present invention
FIG. 8 is a plan view of the present invention showing the installation of a multi-stake hole sectional steel platform;
FIG. 9 is a plan view of the present invention with prefabricated concrete sleeper beams suspended around the periphery of the multi-hole composite steel platform.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
referring to fig. 1-9, the labels in the figures are: the concrete pile comprises a pile hole cover plate 1, a combined type mud groove 2, a rectangular frame 3, a circular steel cylinder 4, a straight groove segment 5, a turning groove segment 6, a turning groove segment 7, a horizontal stiffening plate 8, a vertical stiffening rib 9, a through hole 10, a connecting channel 11, a vertical slot 12, a second cross beam 13, a limiting plate 14, a supporting rib 15, a cover plate 16, a first cross beam 17, a foundation pit 18, a steel pile casing 19, a filler 20, a prefabricated concrete plate 21 and a prefabricated concrete sleeper beam 22.
Example (b): as shown in fig. 1 to 9, the embodiment specifically relates to a construction method of a multi-pile hole combined steel platform capable of preventing slurry from overflowing, and the construction method mainly comprises the following steps:
(step 1) as shown in fig. 5 and 6, excavating a foundation pit 18 on a construction site, wherein the excavation range of the foundation pit 18 covers the position to be drilled of each pile hole, and the excavation depth of the foundation pit 18 reaches 0.6 m; and then sequentially sinking steel casing cylinders 19 with the length of 2m at the design positions of the pile holes, wherein the upper end parts of the steel casing cylinders 19 are 0.3m higher than the bottom of the foundation pit 18.
(step 2) as shown in fig. 1-4 and 7, 8, pile hole cover plates 1 are respectively sleeved on the upper end parts of the steel pile casings 19, namely, the pile hole cover plates 1 are just matched with the parts, protruding out of the bottom surface of the foundation pit 18, of the upper end parts of the steel pile casings 19, fillers 20 are embedded in gaps between the steel pile casings 19 and the pile hole cover plates 1, the fillers 20 can be clay or low-grade mortar, and then combined type mud grooves 2 are paved among the pile hole cover plates 1 to be communicated with one another to form a multi-pile hole combined steel platform. The structure of the multi-pile hole combined steel platform is described in detail as follows:
the pile hole cover plate 1 in the embodiment comprises a rectangular frame 3 and a circular steel cylinder 4, wherein the rectangular frame 3 is formed by enclosing four steel plates, the side length of each rectangular frame 3 is larger than the diameter of a hole to be formed, the diameter of the circular steel cylinder 4 is slightly smaller than the diameter of the hole to be formed, the circular steel cylinder 4 is arranged at the center of the rectangular frame 3 and is fixedly connected with the rectangular frame 3 through a horizontal stiffening plate 8 and a vertical stiffening rib 9; the upper surface of the round steel cylinder 4 is flush with the upper surface of the rectangular frame 3, and the lower surface of the round steel cylinder 4 protrudes out of the lower surface of the rectangular frame 3 so as to be inserted into a preset hole in advance before construction; it should be noted that, in order to prevent slurry from accumulating in the space between the circular steel cylinder 4 and the rectangular frame 3 during the hole forming process, a plurality of through holes 10 are respectively formed in the horizontal stiffening plate 8 and the vertical stiffening rib 9, so that the slurry can flow out conveniently during the post-flushing.
The combined type mud pit 2 in the embodiment is used for mutually communicating all pile hole cover plates 1 in a construction site so as to collect and guide mud generated in a hole forming process, and the combined type mud pit 2 mainly comprises a plurality of straight pit sections 5, a plurality of turning pit sections 6 and turning pit sections 7. Connecting channels 11 are respectively arranged on four side wall surfaces of the pile hole cover plate 1, the opening shape of each connecting channel 11 is U-shaped and is matched with the notch cross section of the turning groove segment 6 and the notch cross section of the turning groove segment 7, vertical inserting grooves 12 are respectively arranged on the inner wall surfaces of two sides of each connecting channel 11, and sealing plates can be inserted into the vertical inserting grooves 12 to temporarily seal the connecting channels 11. During actual construction, only one of the four connecting channels 11 is generally selected to be communicated with the combined type mud groove 2, the sealing plate is pulled out and communicated with the combined type mud groove 2 at the position of the connecting channel 11 during construction, and the sealing plate is inserted into the vertical slot 12 to be plugged after hole forming is completed so as to avoid mud backflow in the combined type mud groove 12; the other three connecting channels 11 are blocked by bolting cover plates 16, as shown in fig. 3.
In the combined type mud pit 2, adjacent straight pit sections 5 are communicated with each other through cross-shaped turning pit sections 7 and are communicated with pile hole cover plates 1 on two sides, and the tail ends of the straight pit sections 5 are communicated with the pile hole cover plates 1 on two sides through T-shaped turning pit sections 6.
As shown in fig. 3, the connection structure between the pile hole cover plate 1 and the turning groove segment 7 in this embodiment is specifically as follows: turn to groove section 7 and be the cross, the notch that has four directional directions altogether, wherein two notches on same rectilinear direction are linked together with rectilinear groove section 5, another two notches on same rectilinear direction are linked together with stake pore cover board 1, it is specific, turn to in groove section 7's notch inserts stake pore cover board 1's connecting channel 11, because both all are U type cross-section, consequently lateral wall between them closely laminates, this moment, erect second crossbeam 13 at the notch and lie in the upper surface of connecting channel 11 inside part, be provided with a limiting plate 14 on second crossbeam 13, limiting plate 14's both sides marginal part closely laminates on the notch internal face of both sides, in order to realize the chucking between notch and the connecting channel 11, at this moment, utilize the bolt to fasten second crossbeam 13 on stake pore cover board 1. It should be noted that the connection between the slot opening of the diverting groove segment 6 and the pile cover plate 1 is the same.
As shown in fig. 4, the connection structure between the straight groove segment 5 and the turning groove segment 7 in the present embodiment is specifically as follows: turn to two notches in groove section 7 and be linked together with straight groove section 5 respectively, it is concrete, the notch of straight groove section 5 is inserted and is established in the notch that turns to groove section 7, because both all are U type cross-section, consequently lateral wall between them is closely laminated, at this moment, the upper surface that cup joints the position at two notches sets up the first crossbeam 17 of installation, the lateral wall face of two notches that has two vertical draw-in grooves and cup jointed mutually with the chucking on first crossbeam 17, this vertical draw-in groove is specifically by setting up limiting plate 14 on first crossbeam 17 and fixed support rib 15 that sets up on the wall outside the notch both sides encloses and constitutes, the both sides marginal part laminating of limiting plate 14 is in order to realize inboard chucking to it on the internal face of notch, and support rib 15 that sets up on the wall outside chucking then provides the outside chucking and fix the setting of first crossbeam 17 on supporting rib 15 through the bolt.
In the multi-pile hole combined steel platform in the embodiment, slurry can be guided to the combined type slurry tank 2 from the pile hole cover plate 1 through the connecting channel 11 in the hole forming process, and after hole forming is completed, a sealing plate can be inserted into the vertical slot 12 in the connecting channel 11 to seal the connecting channel 11, so that the slurry in the combined type slurry tank 2 is prevented from flowing back to the pile hole at the position where the pile hole cover plate 1 is arranged.
(step 3) after the multi-pile hole combined steel platform is installed in place, as shown in fig. 9, precast concrete slabs 21 are laid in the remaining space between adjacent pile hole cover plates 1 so as to facilitate the walking of constructors.
(step 4) as shown in fig. 9, hoisting prefabricated concrete sleeper beams 22 around the periphery of the multi-pile-hole combined steel platform, and installing drilling pile machines on the prefabricated concrete sleeper beams 22; the drilling pile machine is controlled to sequentially drill and excavate soil in each steel casing 19, and generated mud flows into the combined mud tank 2 through the pile hole cover plate 1 to be uniformly collected and processed.
Claims (9)
1. A construction method of a multi-pile hole combined steel platform capable of preventing slurry from overflowing is characterized by comprising the following steps: excavating a foundation pit; sinking a steel casing at the design position of each pile hole in the foundation pit; pile hole cover plates are sleeved at the upper end parts of the steel casing cylinders respectively, and combined type mud tanks are laid to communicate the pile hole cover plates with each other to form a multi-pile-hole combined steel platform; laying prefabricated concrete slabs in the residual spaces of the adjacent pile hole cover plates; hoisting prefabricated concrete sleeper beams around the periphery of the multi-pile-hole combined steel platform and installing drilling pile machines on the prefabricated concrete sleeper beams; and controlling the drilling pile machine to sequentially drill and excavate the soil body in each steel casing, and enabling the generated slurry to flow into the combined slurry tank through the pile hole cover plate to be collected and processed in a unified manner.
2. The construction method of the multi-pile-hole steel platform capable of preventing the slurry from overflowing according to claim 1, wherein a through hole penetrating vertically is formed in the center of the pile hole cover plate, the through hole of the pile hole cover plate is sleeved on the steel casing, and clay or mortar is filled in a gap between the inner wall surface of the through hole of the pile hole cover plate and the outer wall surface of the steel casing.
3. The construction method of the multi-pile hole steel platform capable of preventing the slurry from overflowing according to claim 1, wherein the pile hole cover plate comprises a rectangular frame and a circular steel cylinder arranged in the center of the rectangular frame, and the outer wall surface of the circular steel cylinder is fixedly connected with the inner wall surface of the rectangular frame through a plurality of vertical stiffening ribs and horizontal stiffening plates.
4. The construction method of the multi-pile hole steel platform capable of preventing the slurry from overflowing, according to claim 3, wherein a connecting channel is arranged between the combined slurry tank and at least one side wall surface of each pile hole cover plate, and an openable sealing door is arranged at the connecting channel; the connecting channel is arranged between the round steel cylinder and the rectangular frame, and vertical slots are arranged on two side wall surfaces of the connecting channel for the upper opening and the lower opening of the sealing door.
5. The construction method of the multi-pile hole steel platform capable of preventing the slurry from overflowing, according to claim 3, is characterized in that the top surface of the circular steel cylinder is flush with the top surface of the rectangular frame, the lower bottom surface of the circular steel cylinder protrudes out of the lower bottom surface of the rectangular frame, the upper end of the steel casing protrudes out of the bottom of the foundation pit, wherein the height of the upper end of the steel casing protruding out of the bottom of the foundation pit is the same as the height of the lower bottom surface of the circular steel cylinder protruding out of the lower bottom surface of the rectangular frame, and the lower protruding part of the circular steel cylinder is sleeved on the upper protruding part of the steel casing.
6. The construction method of the multi-pile hole combined steel platform capable of preventing the mud from overflowing according to claim 4, wherein the combined mud trough comprises a plurality of straight trough sections and a plurality of turning trough sections, adjacent straight trough sections are communicated through the turning trough sections, and the turning trough sections are communicated with the connecting channels on the pile hole cover plates.
7. The construction method of the multi-pile hole combined steel platform capable of preventing the slurry from overflowing, according to claim 6, wherein the turning groove section is cross-shaped and has notches pointing in four directions, two notches on the turning groove section are respectively sleeved with the notches of the straight groove section, each notch is U-shaped, a first cross beam is arranged on the upper surface of each notch, and a vertical clamping groove is formed in each first cross beam to clamp the side wall surfaces of the two sleeved notches; turn to two other on the groove section the notch is inserted respectively and is established in the pile hole apron the connect channel, turn to on the groove section the notch and connect channel all is the U type form, connect channel's last surface mounting is fixed with the second crossbeam just be provided with downwardly extending's limiting plate on the second crossbeam, the both sides of limiting plate paste tightly turn to the groove section's notch internal face in order to constitute spacing fixed.
8. The construction method of the multi-pile hole combined steel platform capable of preventing the slurry from overflowing, according to claim 6, wherein the turning groove section is T-shaped and is provided with notches pointing in three directions, one notch on the turning groove section is sleeved with a notch on the straight groove section, the two notches are both U-shaped, a first cross beam is arranged on the upper surface of each notch, and a vertical clamping groove is formed in the first cross beam to clamp the side wall surfaces of the two sleeved notches; turn to two other on the groove section the notch is inserted respectively and is established in the pile hole apron the connect channel, turn to on the groove section the notch and connect channel all is the U type form, connect channel's last surface mounting is fixed with the second crossbeam just be provided with downwardly extending's limiting plate on the second crossbeam, the both sides of limiting plate paste tightly turn to the groove section's notch internal face in order to constitute spacing fixed.
9. The construction method of the multi-pile hole combined steel platform capable of preventing the slurry from overflowing according to claim 7 or 8, wherein a vertical plate is arranged on the first cross beam, and two side edges of the vertical plate are tightly attached to the inner wall surface of the notch; support ribs are respectively arranged on two outer sides of the first cross beam and are tightly attached to the outer wall surface of the notch; the vertical plate and the two support ribs jointly form the vertical clamping groove in the first cross beam.
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| CN202110987603.5A CN113550309B (en) | 2021-08-26 | 2021-08-26 | Construction method of multi-pile-hole combined steel platform capable of preventing slurry from overflowing |
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| CN202110987603.5A CN113550309B (en) | 2021-08-26 | 2021-08-26 | Construction method of multi-pile-hole combined steel platform capable of preventing slurry from overflowing |
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| US10927619B1 (en) * | 2018-05-01 | 2021-02-23 | Eaba Consulting, L.L.C. | Method and apparatus for containment and collection of fluids |
| CN212642645U (en) * | 2020-07-03 | 2021-03-02 | 四川省川英电力工程有限公司 | Rotary excavating machine muck collecting and transporting device |
| CN113006706A (en) * | 2020-12-16 | 2021-06-22 | 宁波市政工程建设集团股份有限公司 | Steel-mixed rotary drilling rig operation platform and construction method thereof |
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2021
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10927619B1 (en) * | 2018-05-01 | 2021-02-23 | Eaba Consulting, L.L.C. | Method and apparatus for containment and collection of fluids |
| CN209179005U (en) * | 2018-10-18 | 2019-07-30 | 中国建筑第八工程局有限公司 | The mud of direct circulation holing with slurry wall protection bored concrete pile falls arranging device |
| CN209040780U (en) * | 2018-12-04 | 2019-06-28 | 山东海岳环境科技股份有限公司 | A kind of environmental-friendly circulation device of hardened place prospecting |
| CN209556935U (en) * | 2018-12-19 | 2019-10-29 | 宁波市政工程建设集团股份有限公司 | A kind of soft soil foundation rotary drilling rig job platform |
| CN211143056U (en) * | 2019-08-21 | 2020-07-31 | 安徽省公路桥梁工程有限公司 | Bored concrete pile construction is with convenient to detach's mud collecting box |
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