CN112359824A - Rock-breaking pile foundation construction method - Google Patents
Rock-breaking pile foundation construction method Download PDFInfo
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- CN112359824A CN112359824A CN202011219535.XA CN202011219535A CN112359824A CN 112359824 A CN112359824 A CN 112359824A CN 202011219535 A CN202011219535 A CN 202011219535A CN 112359824 A CN112359824 A CN 112359824A
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- pile foundation
- hole
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- rock
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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
-
- 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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Abstract
The invention discloses a rock-breaking pile foundation construction method, and relates to the technical field of pile foundation construction. The rock breaking pile foundation construction method comprises the following steps: adopting a plasma rock breaking device to carry out rock breaking construction to obtain an initial pile foundation hole; brushing the wall and cleaning the hole of the initial pile foundation hole by using a rotary drilling rig to obtain a final pile foundation hole; hoisting a reinforcement cage into the final pile foundation hole; and pouring concrete into the final pile foundation hole in which the reinforcement cage is hoisted. The pile foundation construction method is simple in flow, easy to operate and not prone to accidents, and the two rock breaking devices are matched with each other, so that the pile foundation construction method can adapt to drilling of rock strata with different hardness, not only improves the efficiency of rock breaking pile foundation construction, but also reduces the construction cost.
Description
Technical Field
The invention relates to the technical field of pile foundation construction, in particular to a rock breaking pile foundation construction method.
Background
The traditional pile foundation construction basically adopts a rotary drilling rig, an electro-hydraulic pile driver, an impact vibration hammer and the like to carry out mechanical rock breaking or manual drilling. When drilling soft rock and medium hard rock, a rotary drill bit with a hard alloy cutting tool is generally used for drilling; when drilling hard and partial rock formations, a milling tooth roller bit is generally used for drilling; when drilling hard rock, a diamond bit or a steel particle bit is generally used for drilling; when drilling hard and brittle rock formations, hydraulic (pneumatic) in-hole impactors or button bits are generally used for drilling.
The construction method of the rock breaking pile foundation in the prior art is complex, equipment of different models needs to be replaced according to different rock stratums, the working efficiency is low, and the cost is high.
Disclosure of Invention
The invention aims to provide a rock-breaking pile foundation construction method to solve the technical problems of complexity, low working efficiency and high cost of the rock-breaking pile foundation construction method in the prior art.
The embodiment of the invention is realized by the following steps:
the embodiment of the invention provides a rock-breaking pile foundation construction method, which comprises the following steps: adopting a plasma rock breaking device to carry out rock breaking construction to obtain an initial pile foundation hole; brushing the wall and cleaning the hole of the initial pile foundation hole by using a rotary drilling rig to obtain a final pile foundation hole; hoisting a reinforcement cage into the final pile foundation hole; and pouring concrete into the final pile foundation hole in which the reinforcement cage is hoisted.
Optionally, the above-mentioned adopt the broken rock construction of plasma rock breaking device to obtain initial pile foundation hole includes: determining a preset position and a preset diameter of a pile foundation to be built; selecting the diameter of a drill bit installed on the plasma rock breaking device according to the preset diameter of the pile foundation to be built; and (3) carrying out rock breaking construction at a preset position of the pile foundation to be built by adopting a plasma rock breaking device provided with a drill bit to obtain an initial pile foundation hole.
Optionally, the number of the drill bits installed on the plasma rock breaking device is one, and the diameter of each drill bit is equal to the preset diameter of the pile foundation to be built.
Optionally, the number of the drill bits installed on the plasma rock breaking device is multiple, and the multiple drill bits are distributed at intervals within a preset diameter range of the pile foundation to be built.
Optionally, the plurality of drill bits are evenly distributed within the diameter of the pile foundation to be built.
Optionally, the diameters of the plurality of drill bits are equal or unequal.
Optionally, the broken rock construction of the broken rock device of above-mentioned plasma that adopts the installation drill bit in the preset position department of waiting to build the pile foundation obtains initial pile foundation hole and includes: and (3) carrying out rock breaking construction at a preset position of the pile foundation to be built by adopting a plasma rock breaking device provided with a plurality of drill bits to obtain a plurality of initial pile foundation holes distributed at intervals.
Optionally, the obtaining of the final pile foundation hole after brushing the wall and cleaning the hole of the initial pile foundation hole by using the rotary drilling rig includes: and (3) drilling through a plurality of initial pile foundation holes by adopting a rotary drilling rig to form a total initial pile foundation hole, and brushing the wall and cleaning the hole of the total initial pile foundation hole to obtain a final pile foundation hole.
The embodiment of the invention has the beneficial effects that:
the rock-breaking pile foundation construction method provided by the embodiment of the invention comprises the following steps: adopting a plasma rock breaking device to carry out rock breaking construction to obtain an initial pile foundation hole; brushing the wall and cleaning the hole of the initial pile foundation hole by using a rotary drilling rig to obtain a final pile foundation hole; hoisting a reinforcement cage into the final pile foundation hole; and pouring concrete into the final pile foundation hole in which the reinforcement cage is hoisted. According to the pile foundation construction method, the plasma rock breaking device is adopted for rock breaking construction to obtain the initial pile foundation hole, the rotary drilling rig is used for brushing the wall of the initial pile foundation hole and cleaning the hole to obtain the final pile foundation hole, then the steel reinforcement cage is hoisted into the final pile foundation hole, and concrete is poured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is one of flow charts of a rock-breaking pile foundation construction method provided by an embodiment of the invention;
fig. 2 is a second flowchart of a rock-breaking pile foundation construction method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an initial pile foundation hole configuration provided by an embodiment of the present invention;
fig. 4 is a second schematic structural diagram of an initial pile foundation hole according to an embodiment of the present invention.
Icon: 10-initial pile foundation hole; and 20-the preset diameter range of the pile foundation to be built.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to the traditional well drilling, a rotary drilling rig, an electro-hydraulic pile machine, an impact vibration hammer and the like are adopted to mechanically break rock or manually drill according to different rock hardness. The rock breaking pile foundation construction method in the prior art is complex, different rock breaking devices need to be replaced according to different rock hardness for rock breaking construction, the working efficiency is low, and the cost is high. In view of this, the present application is specifically made.
Fig. 1 is a flowchart of a rock-breaking pile foundation construction method according to an embodiment of the present invention, and referring to fig. 1, the embodiment provides a rock-breaking pile foundation construction method, including:
s100: and (5) performing rock breaking construction by adopting the plasma rock breaking device to obtain an initial pile foundation hole.
The plasma rock breaking device is adopted to drill the initial pile foundation hole 10, so that the drilling efficiency and the drilling cost are greatly optimized, and the plasma rock breaking device can be suitable for drilling rock strata with different hardness without replacing drilling equipment according to the rock strata.
The diameter of initial pile foundation hole 10 can be equal to the diameter of predetermineeing of waiting to build the pile foundation, also can be less than the diameter of predetermineeing of waiting to build the pile foundation, but can not be greater than the diameter of predetermineeing of waiting to build the pile foundation, otherwise, the later stage can't obtain the pile foundation that the diameter satisfies the requirement.
S110: and brushing the wall and cleaning the hole of the initial pile foundation hole by using a rotary drilling rig to obtain a final pile foundation hole.
After the initial pile foundation hole 10 is obtained, brushing the wall and cleaning the hole of the initial pile foundation hole 10 by using a rotary drilling rig, and after the brushing of the wall and the cleaning of the hole are finished, obtaining a final pile foundation hole; and brushing the wall, namely only finishing the inner wall of the initial pile foundation hole 10 by using a rotary drilling rig, or simultaneously reaming and finishing the inner wall, and cleaning the hole, namely taking the broken rock in the initial pile foundation hole 10 out of the initial pile foundation hole 10 by using the rotary drilling rig. And the initial pile foundation hole after wall brushing and hole cleaning is the final pile foundation hole, the diameter of the final pile foundation hole is equal to the preset diameter of the pile foundation to be built, and the inner wall of the final pile foundation hole is smooth.
If the diameter of the initial pile foundation hole 10 is equal to the preset diameter of the pile foundation to be built, the rotary drilling rig only trims (does not ream) the inner wall of the initial pile foundation hole 10 and takes broken rocks formed by drilling out of the initial pile foundation hole 10; if the diameter of the initial pile foundation hole 10 is smaller than the preset diameter of the pile foundation to be built, the rotary drilling rig needs to simultaneously perform hole expanding and internal trimming on the initial pile foundation hole 10 and take broken rocks formed by drilling out of the initial pile foundation hole 10.
Exemplarily, the rotary drilling rig comprises a drill barrel, wherein the outer wall of the drill barrel is provided with a helical blade, an auger type drill bit is arranged inside the drill barrel, the auger type drill bit can descend along with the drill barrel while rotating, and the bottom edge of the drill barrel, the helical blade and the auger type drill bit can crush rocks.
S120: and hoisting a reinforcement cage into the final pile foundation hole.
The compressive strength of concrete is high but tensile strength is low, and in order to guarantee that the pile foundation that obtains after the concrete pouring can bear certain axial tension, before the downthehole concrete that pours into of final pile foundation, to the downthehole steel reinforcement cage that hangs of final pile foundation earlier, the steel reinforcement cage plays the effect of restraint to the concrete, makes it can bear certain axial tension.
S130: and pouring concrete into the final pile foundation hole in which the reinforcement cage is hoisted.
And after the steel reinforcement cage is lifted, pouring concrete into the final pile foundation hole, and after the concrete is solidified, obtaining the required pile foundation.
According to the pile foundation construction method, the initial pile foundation hole 10 is obtained through rock breaking construction by the aid of the plasma rock breaking device, the rotary drilling rig is used for brushing the wall of the initial pile foundation hole 10 and cleaning the hole to obtain the final pile foundation hole, then the steel reinforcement cage is hoisted into the final pile foundation hole, and concrete is poured.
Fig. 2 is a second flowchart of a rock-breaking pile foundation construction method according to an embodiment of the present invention, and referring to fig. 2, optionally, the obtaining of the initial pile foundation hole by using a plasma rock-breaking device for rock-breaking construction includes:
s101: and determining the preset position and the preset diameter of the pile foundation to be built.
And determining the preset position and the preset diameter of the pile foundation to be built, namely determining the position and the diameter of the pile foundation to be built on the rock. And the subsequent construction determines the construction position and selects the type of the rock breaking device according to the preset position and the preset diameter of the pile foundation to be built.
S102: and selecting the diameter of a drill bit installed on the plasma rock breaking device according to the preset diameter of the pile foundation to be built.
During rock breaking construction, the plasma rock breaking device is in contact with rocks through a drill bit arranged on the plasma rock breaking device to break the rocks, so that the diameter of the drill bit determines the diameter of an initial pile foundation hole 10 obtained after rock breaking construction of the plasma rock breaking device, the diameter of the drill bit arranged on the plasma rock breaking device needs to be selected according to the preset diameter of a pile foundation to be built, and the selected principle is that the diameter of the drill bit is smaller than or equal to the preset diameter of the pile foundation to be built. In addition, the drill bits with different diameters are arranged on the plasma rock breaking device, so that pile foundation drilling with different apertures can be realized.
S103: and (3) carrying out rock breaking construction at a preset position of the pile foundation to be built by adopting a plasma rock breaking device provided with a drill bit to obtain an initial pile foundation hole.
And determining a construction position according to the preset position of the pile foundation to be built, selecting a drill bit on the plasma rock breaking device according to the preset diameter of the pile foundation to be built, starting the plasma rock breaking device, and performing rock breaking construction at the preset position of the pile foundation to be built to obtain the initial pile foundation hole 10.
It should be understood that the number of the drill bits on the plasma rock breaking device is not limited, and may be one, or may be multiple (more than one). If the number of the drill bits is one, only one drill bit is used for rock breaking construction on the plasma rock breaking device, and correspondingly, the number of the initial pile foundation holes 10 obtained in the step S103 is one; if the number of the drill bits is multiple, the plasma rock breaking device is provided with a plurality of drill bits for rock breaking construction at the same time, accordingly, the number of the initial pile foundation holes 10 obtained in the step S103 is also multiple, and the distribution form of the plurality of initial pile foundation holes 10 is the same as the distribution form of the plurality of drill bits on the plasma rock breaking device.
Optionally, the number of the drill bits installed on the plasma rock breaking device is one, and the diameter of each drill bit is equal to the preset diameter of the pile foundation to be built.
If the number of the drill bits installed on the plasma rock breaking device is one, only one initial pile foundation hole 10 is obtained after the rock breaking construction of the plasma rock breaking device, in order to reduce the overall construction time and improve the construction efficiency, the diameter of the initial pile foundation hole 10 should be as close as possible to the preset diameter of the pile foundation to be built so as to reduce the workload of a subsequent rotary drilling rig in wall brushing (including hole expanding) on the initial pile foundation hole 10, the diameter of the drill bit is selected to be equal to the preset diameter of the pile foundation to be built, and the diameter of the drill bit can be slightly smaller than the preset diameter of the pile foundation to be built.
However, the larger the diameter of the drill bit is, the larger the power drive is required, and if the preset diameter of the pile foundation to be built is too large, and the existing plasma rock breaking device cannot drive the drill bit matched with the preset diameter of the pile foundation to be built (the diameter of the drill bit is equal to or slightly smaller than the preset diameter of the pile foundation to be built) to perform rock breaking construction, other methods are required to obtain the final pile foundation hole.
When adopting the rotary drilling rig to brush the wall and clear the hole initial pile foundation hole 10, exemplarily, if the quantity of initial pile foundation hole 10 is one and the diameter of initial pile foundation hole 10 equals with the preset diameter of the pile foundation to be built, then the drill section of thick bamboo drives the rotatory decline of helical blade on the outer wall, helical blade's edge is repaiied the inner wall of initial pile foundation hole 10 and is polished, make the inner wall of initial pile foundation hole 10 more smooth, simultaneously, the rotatory decline of the auger type drill bit of drill section of thick bamboo inside, take out the broken rock in initial pile foundation hole 10 outside initial pile foundation hole 10, obtain final pile foundation hole.
Illustratively, if the number of the initial pile foundation holes 10 is one, but the diameter of the initial pile foundation hole 10 is smaller than the preset diameter of the pile foundation to be built, the drill cylinder and the auger-type drill bit inside the drill cylinder rotate and descend simultaneously, the bottom edge of the drill cylinder and the auger-type drill bit ream the initial pile foundation hole 10, the drill cylinder drives the edge of the helical blade on the outer wall to finish and polish the inner wall of the expanded initial pile foundation hole 10, so that the inner wall of the initial pile foundation hole 10 is smoother, and meanwhile, the auger-type drill bit inside the drill cylinder takes the broken rock in the initial pile foundation hole 10 out of the initial pile foundation hole 10 to obtain the final pile foundation hole.
Fig. 3 is a schematic structural diagram of an initial pile foundation hole according to an embodiment of the present invention, and referring to fig. 3, optionally, the number of the drill bits installed on the plasma rock breaking device is multiple, and the multiple drill bits are distributed at intervals within a preset diameter range 20 of a pile foundation to be built.
Install a plurality of drill bits on the broken rock device of plasma, the distribution range of a plurality of drill bits all is located the diameter range 20 of predetermineeing of waiting to build the pile foundation to guarantee that a plurality of initial pile foundation holes 10 that obtain after the broken rock construction of a plurality of drill bits all are located the diameter range 20 of predetermineeing of waiting to build the pile foundation, so, can guarantee to adopt the rotary drilling rig to brush the wall (including reaming) back to initial pile foundation hole 10, obtain the final pile foundation hole that satisfies the position of predetermineeing and predetermineeing the diameter requirement of waiting to build the pile foundation.
The drill bits are distributed at intervals, so that the drill bits can be prevented from interfering with each other during working, the service life of the drill bits is shortened, and the construction process is influenced. It should be understood that the diameters of the multiple drill bits are all smaller than the preset diameter of the pile foundation to be built, and after the multiple initial pile foundation holes 10 are formed in the rock breaking construction, the rotary drilling rig can drive the multiple initial pile foundation holes 10 through to form the total initial pile foundation hole 10 for subsequent construction.
Optionally, the broken rock construction of plasma that adopts the installation drill bit in the preset position department of waiting to build the pile foundation obtains initial pile foundation hole and includes: and (3) carrying out rock breaking construction at the preset position of the pile foundation to be built by adopting a plasma rock breaking device provided with a plurality of drill bits to obtain a plurality of initial pile foundation holes 10 distributed at intervals.
When the number of the drill bits on the plasma rock breaking device is multiple, the number of the initial pile foundation holes 10 obtained after rock breaking construction is also multiple, the diameters of the multiple initial pile foundation holes 10 are equal to the diameters of the multiple drill bits, and the distribution of the multiple initial pile foundation holes 10 is consistent with the distribution of the multiple drill bits on the plasma rock breaking device.
Optionally, obtaining the final pile foundation hole after brushing the wall and cleaning the hole of the initial pile foundation hole by using the rotary drilling rig comprises: and (3) drilling through the plurality of initial pile foundation holes 10 by adopting a rotary drilling rig to form a total initial pile foundation hole 10, and brushing the wall and cleaning the hole of the total initial pile foundation hole 10 to obtain a final pile foundation hole.
When the number of the drill bits on the plasma rock breaking device is multiple, a plurality of initial pile foundation holes 10 distributed at intervals are obtained after rock breaking construction, in order to obtain a final pile foundation hole, a rotary drilling rig is required to drive the plurality of initial pile foundation holes 10 through to form a total initial pile foundation hole 10, and meanwhile, the inner wall of the total initial pile foundation hole 10 is trimmed and broken rocks formed by drilling are taken out of the total initial pile foundation hole 10. And brushing the wall of the total initial pile foundation hole 10 and cleaning the hole to obtain the position and the diameter of the final pile foundation hole which are the same as the preset position and the preset diameter of the pile foundation to be built.
Illustratively, if the number of the initial pile foundation holes 10 is multiple, the auger type drill bits inside the drill cylinder and the drill cylinder rotate and descend simultaneously, the bottom edge of the drill cylinder and the auger type drill bits drive the multiple initial pile foundation holes 10 to form a total initial pile foundation hole 10, the drill cylinder drives the edges of the helical blades on the outer wall to finish and polish the inner wall of the total initial pile foundation hole 10, so that the inner wall of the total initial pile foundation hole is smoother, and meanwhile, the auger type drill bits inside the drill cylinder take broken rocks in the total initial pile foundation hole 10 out of the total initial pile foundation hole 10 to obtain a final pile foundation hole.
Optionally, the plurality of drill bits are evenly distributed over the diameter of the pile foundation to be built.
A plurality of drill bit evenly distributed make a plurality of initial pile foundation holes 10 that obtain after the broken rock construction also be waiting to build the diameter within range evenly distributed of pile foundation, so, can destroy the rock stratum of waiting to build the diameter within range of pile foundation more evenly, reduce the hardness and the intensity of rock stratum, it is easier to make the adoption of follow-up dig the brill soon and form total initial pile foundation hole 10 after getting through a plurality of initial pile foundation holes 10.
Illustratively, the number of the drill bits is three, and the circle center connecting lines of the three initial pile foundation holes 10 drilled by the three drill bits jointly form an isosceles triangle.
Fig. 4 is a second schematic structural diagram of an initial pile foundation hole provided in an embodiment of the present invention, please refer to fig. 3 and 4 in combination, and optionally, the diameters of the multiple drill bits are equal or unequal.
The diameters of a plurality of drill bits installed on the plasma rock breaking device can be equal or unequal, and the plurality of initial pile foundation holes 10 obtained after rock breaking construction of the plurality of drill bits can be within the preset diameter range 20 of the pile foundation to be built.
If the diameters of the multiple drill bits are equal, the diameters of the obtained multiple initial pile foundation holes 10 are also equal; if the diameters of the multiple drill bits are not equal, the diameters of the obtained multiple initial pile foundation holes 10 are not equal, the drill bits with different diameters can be selected according to the power of the plasma rock breaking device to be matched with each other, the multiple initial pile foundation holes 10 are formed together, the hardness and the strength of rocks are reduced as much as possible, and convenience is brought to wall brushing and hole cleaning of the initial pile foundation holes 10 by adopting a rotary drilling rig in the subsequent process.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A rock-breaking pile foundation construction method is characterized by comprising the following steps:
adopting a plasma rock breaking device to carry out rock breaking construction to obtain an initial pile foundation hole;
brushing the wall and cleaning the hole of the initial pile foundation hole by using a rotary drilling rig to obtain a final pile foundation hole;
hoisting a reinforcement cage into the final pile foundation hole;
and pouring concrete into the final pile foundation hole in which the reinforcement cage is hoisted.
2. The method for rock breaking pile foundation construction according to claim 1, wherein the obtaining of the initial pile foundation hole by the rock breaking construction of the plasma rock breaking device comprises:
determining a preset position and a preset diameter of a pile foundation to be built;
selecting the diameter of a drill bit installed on the plasma rock breaking device according to the preset diameter of the pile foundation to be built;
and (3) carrying out rock breaking construction at the preset position of the pile foundation to be built by adopting the plasma rock breaking device provided with the drill bit to obtain the initial pile foundation hole.
3. A rock breaking pile foundation construction method according to claim 2, wherein the number of the drill bits mounted on the plasma rock breaking device is one, and the diameter of the drill bits is equal to the preset diameter of the pile foundation to be built.
4. A rock breaking pile foundation construction method according to claim 2, wherein the number of the drill bits mounted on the plasma rock breaking device is plural, and the plural drill bits are distributed at intervals within a preset diameter range of the pile foundation to be built.
5. A rock breaking pile foundation construction method according to claim 4, wherein a plurality of the drill bits are evenly distributed within the diameter of the pile foundation to be built.
6. A rock breaking pile foundation construction method according to claim 4, wherein the plurality of drill bits are of equal or unequal diameter.
7. The method for rock breaking pile foundation construction according to claim 4, wherein the obtaining of the initial pile foundation hole by rock breaking construction at the preset position of the pile foundation to be built by using the plasma rock breaking device provided with the drill bit comprises:
and adopting the plasma rock breaking device provided with a plurality of drill bits to break rock at the preset position of the pile foundation to be built to obtain a plurality of initial pile foundation holes distributed at intervals.
8. The rock breaking pile foundation construction method of claim 7, wherein the obtaining of the final pile foundation hole after the wall brushing and hole cleaning of the initial pile foundation hole by the rotary drilling rig comprises:
and drilling through the plurality of initial pile foundation holes by adopting a rotary drilling rig to form a total initial pile foundation hole, and performing wall brushing and hole cleaning on the total initial pile foundation hole to obtain a final pile foundation hole.
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| CN202011219535.XA CN112359824A (en) | 2020-11-04 | 2020-11-04 | Rock-breaking pile foundation construction method |
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| CN202011219535.XA CN112359824A (en) | 2020-11-04 | 2020-11-04 | Rock-breaking pile foundation construction method |
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| RU2007136312A (en) * | 2007-10-01 | 2009-04-10 | Иван Иванович Сташевский (RU) | PLASMA DRILLING UNIT |
| CN108267053A (en) * | 2018-03-28 | 2018-07-10 | 中国地质大学（北京） | A kind of mechanical device that plasma shot rock is generated using electrohydraulic effect |
| CN108273631A (en) * | 2018-02-12 | 2018-07-13 | 中国地质大学（北京） | It is a kind of to use foam solution as dielectric plasma detritus method and system |
| CN109441360A (en) * | 2018-10-09 | 2019-03-08 | 中国石油大学(北京) | Discharge in water plasma stock wave PDC drill bit |
| CN110344400A (en) * | 2019-07-17 | 2019-10-18 | 北京建材地质工程有限公司 | The hard rock pore-forming construction technology of churning driven opportunity |
| CN110566114A (en) * | 2019-09-04 | 2019-12-13 | 深圳市工勘岩土集团有限公司 | Hard rock drilling pile-forming construction method of rotary excavating cluster type down-the-hole hammer |
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2020
- 2020-11-04 CN CN202011219535.XA patent/CN112359824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2007136312A (en) * | 2007-10-01 | 2009-04-10 | Иван Иванович Сташевский (RU) | PLASMA DRILLING UNIT |
| CN108273631A (en) * | 2018-02-12 | 2018-07-13 | 中国地质大学（北京） | It is a kind of to use foam solution as dielectric plasma detritus method and system |
| CN108267053A (en) * | 2018-03-28 | 2018-07-10 | 中国地质大学（北京） | A kind of mechanical device that plasma shot rock is generated using electrohydraulic effect |
| CN109441360A (en) * | 2018-10-09 | 2019-03-08 | 中国石油大学(北京) | Discharge in water plasma stock wave PDC drill bit |
| CN110344400A (en) * | 2019-07-17 | 2019-10-18 | 北京建材地质工程有限公司 | The hard rock pore-forming construction technology of churning driven opportunity |
| CN110566114A (en) * | 2019-09-04 | 2019-12-13 | 深圳市工勘岩土集团有限公司 | Hard rock drilling pile-forming construction method of rotary excavating cluster type down-the-hole hammer |
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