A method for installing a steel casing

Abstract

The invention discloses a method for driving a steel casing, which comprises the following steps: cleaning large rocks on the surface layer of a seawall slope protection, and locating a driving area; driving a steel casing for a bored pile in the driving area; backfilling the surroundings of the steel casing for the bored pile, and placing a lifting frame for concrete pouring; installing a three-piece grab on the lifting frame, and digging out the rocks in the steel casing by the deadweight impact of the three-piece grab until a basic silt layer in the casing is dug out, and drilling a hole for the bored pile; and pouring concrete for the bored pile along the hole until the construction of the entire bored pile is completed. At this time, the cleaning time of the basic rocks in the driving construction range of the steel casing for the bored pile is reduced, the driving efficiency of the steel casing for the bored pile is improved, and the construction cost of the bored pile is saved.

Description

Technical Field

[0001] The invention relates to the technical field of steel casings, and in particular to a method for driving and installing a steel casing. Background Art

[0002] With the development of science and technology, high-quality shoreline resources in the north are scarce. In the past decade or so, many ports have been formed by filling. Large stones are mostly used for seawall slope protection to prevent seawater from eroding the slope protection. In the later stage of port terminal construction, the dock working platform and the rear land are basically connected by a trestle. The pile foundation of the trestle is mostly in the form of cast-in-place piles close to the shore. However, the steel casing of the cast-in-place pile is set on the stone slope protection of the seawall. The steel casing is set based on large stones, which affects the efficiency of setting the steel casing of the cast-in-place pile. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art. The present invention provides a method for driving a steel casing, which includes cleaning large rocks on the surface of the seawall slope protection and locating the driving area; driving the steel casing of the bored pile in the driving area; backfilling the surroundings of the steel casing of the bored pile, and placing a lifting frame for concrete pouring; installing a three-petal grab on the lifting frame, and grabbing and digging out the rocks in the steel casing through the impact of the deadweight of the three-petal grab until the basic silt layer in the casing is dug out, and drilling a hole for the bored pile; pouring concrete for the bored pile along the hole until the construction of the entire bored pile is completed. At this time, the cleaning time of the basic rocks in the driving construction range of the steel casing of the bored pile is reduced, the driving efficiency of the steel casing of the bored pile is improved, and the construction cost of the bored pile is saved.

[0004] The embodiment of the present invention provides a method for installing a steel casing, which is applied to a method for installing a steel casing;

[0005] The method for installing the steel casing comprises:

[0006] Clear the large rocks on the surface of the seawall slope and locate the paving area;

[0007] Driving the steel casing of cast-in-place piles in the driving area;

[0008] Backfill the surroundings of the steel casing of the bored pile and place a lifting frame for concrete pouring;

[0009] A three-piece grab is installed on the lifting frame, and the rocks in the steel casing are dug out by the deadweight impact of the three-piece grab until the basic silt layer in the casing is dug out;

[0010] Drilling holes for cast-in-place piles;

[0011] The concrete of the bored pile is poured along the hole until the construction of the entire bored pile is completed.

[0012] Optionally, the large rocks on the surface of the seawall slope protection are cleaned up and the paving area is located, including:

[0013] Locate the surface layer of the seawall slope protection;

[0014] Define the area to be treated based on the surface layer of the seawall slope protection;

[0015] Inspect the area to be treated and screen the large rocks on the surface of the seawall slope protection;

[0016] Clear the large rocks on the surface of the seawall slope;

[0017] After the large rocks on the surface of the seawall slope are cleared, the construction area of ​​the surface of the seawall slope is located.

[0018] Optionally, the step of driving a cast-in-place pile steel casing in the driving area includes:

[0019] Set the area to be played;

[0020] Carry out construction in the construction area;

[0021] The steel casing of the bored pile is driven according to the construction of the driving area;

[0022] During the driving process of the cast-in-place pile steel casing, the driving is carried out from top to bottom along the driving area;

[0023] The steel casing of the bored piles is driven step by step.

[0024] Optionally, backfilling around the steel casing of the bored pile and placing a lifting frame for concrete pouring includes:

[0025] Fixed frame cast-in-place pile steel casing;

[0026] Position the outer peripheral side of the cast-in-place pile steel casing;

[0027] Backfill the outer periphery of the cast-in-place pile steel casing and the surface layer of the seawall slope protection;

[0028] Monitor backfill progress;

[0029] After the backfill is completed, a lifting frame for concrete pouring is placed on the surface of the seawall slope, and the stability of the lifting frame relative to the surface of the seawall slope is tested.

[0030] Optionally, the three-piece grab is installed on the lifting frame, and the blocks in the steel casing are dug out by the deadweight impact of the three-piece grab until the basic silt layer in the casing is dug, including:

[0031] Fixed frame lifting frame;

[0032] Install the lifting frame and install the three-piece grab bucket on the lifting frame;

[0033] Top-down movement based on three-piece grab;

[0034] The rocks in the steel casing are dug out by the deadweight impact of the three-piece grab bucket;

[0035] The excavation process of the rock blocks in the steel casing is monitored in real time until the basic silt layer in the casing is reached.

[0036] Optionally, the step of drilling a hole for the cast-in-place pile comprises:

[0037] Fixed frame cast-in-place piles;

[0038] Defining a first formed hole based on the detection of the cast-in-place pile;

[0039] Drilling the first forming hole;

[0040] The drilling of the first forming hole is monitored in real time and the bored piles are drilled to define the casting hole.

[0041] Optionally, the step of drilling a hole for the cast-in-place pile further comprises:

[0042] In the detection of cast-in-place piles, multiple spatial parameters are collected along the axial direction of the cast-in-place piles;

[0043] Determine multiple hole position features according to multiple spatial parameters;

[0044] Defining a first forming hole based on a comparison of a plurality of hole position features;

[0045] Associating the first formed hole and the cast-in-place pile;

[0046] A corresponding drilling tool is matched according to the first formed hole and the cast-in-place pile, and the first formed hole is expanded based on the drilling tool to form a casting hole.

[0047] Optionally, the pouring of concrete for the bored pile along the hole until the construction of the entire bored pile is completed includes:

[0048] Fixed frame pouring hole;

[0049] Casting the casting holes;

[0050] Concrete pouring of the bored pile is carried out along the pouring hole;

[0051] Monitor the concrete pouring of the bored pile in real time until the construction of the entire bored pile is completed.

[0052] Optionally, the pouring of concrete for the bored pile along the hole until the entire bored pile is constructed further includes:

[0053] During the concrete pouring of cast-in-place piles, the concrete pouring volume is monitored in real time;

[0054] Define the pouring space according to the pouring amount of concrete and the diameter of the pouring hole;

[0055] Match the corresponding casting allowance based on the casting space.

[0056] Optionally, the pouring of concrete for the bored pile along the hole until the entire bored pile is constructed further includes:

[0057] Match the corresponding pouring system according to the pouring allowance and pouring depth;

[0058] Based on this casting system, the concrete pouring of the bored pile is controlled until the construction of the entire bored pile is completed.

[0059] In an embodiment of the present invention, through the method in the embodiment of the present invention, the large rocks on the surface layer of the seawall slope protection are cleaned and the driving area is located; the steel casing of the bored pile is driven in the driving area; the surrounding area of ​​the steel casing of the bored pile is backfilled, and a lifting frame for concrete pouring is placed; a three-petal grab is installed on the lifting frame, and the rocks in the steel casing are grabbed and dug out by the deadweight impact of the three-petal grab until the basic silt layer in the casing is dug out, and a hole is drilled for the bored pile; concrete is poured along the hole until the construction of the entire bored pile is completed. At this time, the cleaning time of the basic rocks in the driving construction range of the steel casing of the bored pile is reduced, the driving efficiency of the steel casing of the bored pile is improved, and the construction cost of the bored pile is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 It is a schematic flow chart of a method for laying a steel casing in an embodiment of the present invention;

[0062] Figure 2 is a schematic flow chart of S11 in the method for laying a steel casing in an embodiment of the present invention;

[0063] Figure 3 is a schematic flow chart of S12 in the method for laying a steel casing in an embodiment of the present invention;

[0064] Figure 4 is a schematic flow chart of S13 in the method for laying a steel casing in an embodiment of the present invention;

[0065] Figure 5 is a schematic flow chart of S14 in the method for laying a steel casing in an embodiment of the present invention;

[0066] Figure 6 1 is a flow chart of S15 in the method for installing a steel casing in an embodiment of the present invention;

[0067] Figure 7 It is a schematic flow chart of S16 in the method for installing the steel casing in the embodiment of the present invention. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] See also Figures 1 to 7 , a method for installing a steel casing, applied to a method scenario for installing a steel casing; the method for installing a steel casing includes:

[0070] Step S11: pouring concrete for the bored pile until the entire bored pile is constructed;

[0071] Step S12: driving the cast-in-place pile steel casing in the driving area;

[0072] Step S13: backfill the surroundings of the cast-in-place pile steel casing and place a lifting frame for concrete pouring;

[0073] Step S14: backfill the surroundings of the cast-in-place pile steel casing and place a lifting frame for concrete pouring;

[0074] Step S15: drilling a hole into the cast-in-place pile;

[0075] Step S16: pouring concrete of the bored pile along the hole until the construction of the entire bored pile is completed.

[0076] In an embodiment of the present invention, through the method in the embodiment of the present invention, the large rocks on the surface layer of the seawall slope protection are cleaned and the driving area is located; the steel casing of the bored pile is driven in the driving area; the surrounding area of ​​the steel casing of the bored pile is backfilled, and a lifting frame for concrete pouring is placed; a three-petal grab is installed on the lifting frame, and the rocks in the steel casing are grabbed and dug out by the deadweight impact of the three-petal grab until the basic silt layer in the casing is dug out, and a hole is drilled for the bored pile; concrete is poured along the hole until the construction of the entire bored pile is completed. At this time, the cleaning time of the basic rocks in the driving construction range of the steel casing of the bored pile is reduced, the driving efficiency of the steel casing of the bored pile is improved, and the construction cost of the bored pile is saved.

[0077] refer to Figure 2 In step S11, the cast-in-place pile concrete is poured until the entire cast-in-place pile construction is completed;

[0078] In the specific implementation process of the present invention, the specific steps may be:

[0079] S111: Locate the surface layer of the seawall slope protection;

[0080] S112: define the area to be processed based on the surface layer of the seawall slope protection;

[0081] S113: inspect the area to be treated and screen the large rocks on the surface of the seawall slope protection;

[0082] S114: Clear the large rocks on the surface of the seawall slope;

[0083] S115: After the large rocks on the surface of the seawall slope protection are cleared, the construction area on the surface of the seawall slope protection is located.

[0084] In an embodiment of the present application, the surface layer of the seawall slope protection is located, the surface layer of the seawall slope protection is introduced, and the surface layer of the seawall slope protection is controlled, so that the area to be processed is defined based on the surface layer of the seawall slope protection, and the positioning of the area to be processed is achieved, so as to facilitate the processing of the area to be processed.

[0085] Therefore, the area to be treated is inspected, and the large stones on the surface of the seawall slope are screened; the large stones on the surface of the seawall slope are cleaned, and the large stones are controlled to avoid the large stones affecting the subsequent processes.

[0086] Furthermore, after the large rocks on the surface of the seawall slope protection are cleared, the construction area on the surface of the seawall slope protection is located, the construction area is introduced, the positioning of the construction area is achieved, and the control of the surface of the seawall slope protection is ensured.

[0087] refer to Figure 3In step S12, the steel casing of the cast-in-place pile is driven in the driving area;

[0088] In the specific implementation process of the present invention, the specific steps may be:

[0089] S121: freeze frame setting area;

[0090] S122: Carry out construction on the installation area;

[0091] S123: Driving the steel casing of the cast-in-place pile according to the construction of the driving area;

[0092] S124: During the driving process of the cast-in-place pile steel casing, the casing is driven from top to bottom along the driving area;

[0093] S125: The steel casings of the bored piles are driven step by step.

[0094] In the embodiments of the present application, the driving area is fixed, the driving area is controlled, and at the same time, the driving area is constructed; the steel casing of the bored pile is driven according to the construction of the driving area, thereby realizing the driving of the steel casing of the bored pile.

[0095] Therefore, during the driving process of the cast-in-place pile steel casing, the driving is carried out from top to bottom along the driving area; the cast-in-place pile steel casing is driven step by step in sequence, thus realizing the step-by-step driving of the cast-in-place pile steel casing and ensuring the driving effect of the cast-in-place pile steel casing.

[0096] refer to Figure 4 In step S13, in the clean space of the floor, the surroundings of the cast-in-place pile steel casing are backfilled and a lifting frame for concrete pouring is placed;

[0097] In the specific implementation process of the present invention, the specific steps may be:

[0098] S131: Steel casing for fixed cast-in-place piles;

[0099] S132: Positioning the outer peripheral side of the cast-in-place pile steel casing;

[0100] S133: backfill the outer periphery of the cast-in-place pile steel casing and the surface layer of the seawall slope protection;

[0101] S134: monitoring backfill progress;

[0102] S135: After the backfill is completed, a lifting frame for concrete pouring is placed on the surface of the seawall slope protection, and the stability of the lifting frame relative to the surface of the seawall slope protection is tested.

[0103] In an embodiment of the present application, the bored pile steel casing is fixed and the outer peripheral side of the bored pile steel casing is positioned, thereby achieving the positioning of the outer peripheral side of the bored pile steel casing, thereby backfilling the outer peripheral side of the bored pile steel casing and the surface layer of the seawall slope protection, ensuring the filling between the outer peripheral side of the bored pile steel casing and the surface layer of the seawall slope protection.

[0104] Therefore, the backfill progress is monitored; after the backfill is completed, a lifting frame for concrete pouring is placed on the surface of the seawall slope protection, and the stability of the lifting frame relative to the surface of the seawall slope protection is tested to ensure the subsequent processing of the lifting frame.

[0105] refer to Figure 5 , S14: backfill the surroundings of the cast-in-place pile steel casing and place a lifting frame for concrete pouring;

[0106] In the specific implementation process of the present invention, the specific steps may be:

[0107] S141: Fixed frame lifting frame;

[0108] S142: Install the lifting frame and install the three-piece grab bucket on the lifting frame;

[0109] S143: Moving from top to bottom based on the three-petal grab;

[0110] S144: The rocks in the steel casing are dug out by the deadweight impact of the three-piece grab bucket;

[0111] S145: Real-time monitoring of the excavation process of the rock blocks in the steel casing until the basic mud layer in the casing is reached.

[0112] In an embodiment of the present application, a lifting frame is fixed; the lifting frame is installed, and a three-petal grab is installed on the lifting frame, and the three-petal grab is introduced to further control the three-petal grab.

[0113] Therefore, the three-petal grab is used to move from top to bottom; the rocks in the steel casing are dug out through the impact of the three-petal grab's own weight; the digging process of the rocks in the steel casing is monitored in real time until the basic silt layer in the casing is dug out, thereby ensuring the digging of the rocks in the steel casing and cleaning the basic silt layer in the casing.

[0114] refer to Figure 6 , S15: drilling holes into the cast-in-place piles;

[0115] In the specific implementation process of the present invention, the specific steps may be:

[0116] S151: Fixed-grid cast-in-place piles;

[0117] S152: defining a first formed hole based on the detection of the cast-in-place pile;

[0118] S153: drilling the first forming hole;

[0119] S154: real-time monitoring of the drilling of the first forming hole, and drilling of the cast-in-place pile to define the casting hole.

[0120] In an embodiment of the present application, the bored pile is frozen; a first formed hole is defined based on the detection of the bored pile; the first formed hole is drilled; the drilling of the first formed hole is monitored in real time, and the bored pile is drilled to define the casting hole, thereby achieving the expansion of the first formed hole and forming the casting hole, thereby fully realizing the subsequent control of the casting hole.

[0121] In addition, the method of drilling holes for bored piles also includes: in the detection of bored piles, collecting multiple spatial parameters along the axial direction of the bored piles; determining multiple hole position features based on the multiple spatial parameters; defining a first formed hole based on the comparison of the multiple hole position features; associating the first formed hole and the bored pile; matching the corresponding drilling tool according to the first formed hole and the bored pile, and expanding the first formed hole based on the drilling tool to form a casting hole, thereby ensuring the accuracy of the casting hole and being compatible with the precise control of the first formed hole.

[0122] refer to Figure 7 , S16: pouring concrete of the cast-in-place pile along the hole until the construction of the entire cast-in-place pile is completed;

[0123] In the specific implementation process of the present invention, the specific steps may be:

[0124] S161: fixed pouring hole;

[0125] S162: Casting the casting hole;

[0126] S163: pouring concrete of the cast-in-place pile along the hole;

[0127] S164: Real-time monitoring of the concrete pouring of the bored pile until the construction of the entire bored pile is completed.

[0128] During the specific implementation of the present invention, the large rocks on the surface of the seawall slope protection are cleaned and the driving area is located; the steel casing of the bored pile is driven in the driving area; the surroundings of the steel casing of the bored pile are backfilled, and a lifting frame for concrete pouring is placed; a three-petal grab is installed on the lifting frame, and the rocks in the steel casing are grabbed and dug out by the deadweight impact of the three-petal grab until the basic silt layer in the casing is dug, and a hole is drilled for the bored pile; concrete is poured along the hole until the construction of the entire bored pile is completed. At this time, the cleaning time of the basic rocks in the driving construction range of the steel casing of the bored pile is reduced, the driving efficiency of the steel casing of the bored pile is improved, and the construction cost of the bored pile is saved.

[0129] At the same time, the pouring holes are fixed; the pouring holes are poured; the concrete of the bored pile is poured along the holes; the concrete pouring of the bored pile is monitored in real time until the construction of the entire bored pile is completed. At this time, the time for cleaning the foundation blocks within the construction range of the bored pile steel casing is reduced, the efficiency of the bored pile steel casing is improved, and the bored pile construction cost is saved.

[0130] In addition, the concrete pouring of the bored pile along the hole until the construction of the entire bored pile is completed also includes: during the concrete pouring of the bored pile, real-time monitoring of the concrete pouring amount; defining a pouring space according to the concrete pouring amount and the aperture of the pouring hole; matching a corresponding pouring allowance based on the pouring space; matching a corresponding pouring system according to the pouring allowance and the pouring depth; and controlling the concrete pouring of the bored pile based on the pouring system until the construction of the entire bored pile is completed. The concrete pouring amount and the aperture of the pouring hole are introduced, and the pouring space is controlled. At the same time, the matching of the pouring allowance and the pouring depth is compatible, thereby ensuring the control accuracy of the pouring system.

[0131] In an embodiment of the present invention, through the method in the embodiment of the present invention, the large rocks on the surface layer of the seawall slope protection are cleaned and the driving area is located; the steel casing of the bored pile is driven in the driving area; the surrounding area of ​​the steel casing of the bored pile is backfilled, and a lifting frame for concrete pouring is placed; a three-petal grab is installed on the lifting frame, and the rocks in the steel casing are grabbed and dug out by the deadweight impact of the three-petal grab until the basic silt layer in the casing is dug out, and a hole is drilled for the bored pile; concrete is poured along the hole until the construction of the entire bored pile is completed. At this time, the cleaning time of the basic rocks in the driving construction range of the steel casing of the bored pile is reduced, the driving efficiency of the steel casing of the bored pile is improved, and the construction cost of the bored pile is saved.

[0132] In addition, the above method for installing the steel casing provided in the embodiment of the present invention is introduced in detail. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. For those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for installing a steel casing, characterized in that: Scenarios for the installation of steel casing; The method for installing the steel casing comprises: Clear the large rocks on the surface of the seawall slope and locate the area for paving; Driving the steel casing of cast-in-place piles in the driving area; Backfill the surroundings of the steel casing of the bored pile and place a lifting frame for concrete pouring; A three-piece grab is installed on the lifting frame, and the rocks in the steel casing are dug out by the deadweight impact of the three-piece grab until the basic silt layer in the casing is dug out; Drilling holes for cast-in-place piles; The concrete of the bored pile is poured along the hole until the construction of the entire bored pile is completed.

2. The method for installing a steel casing according to claim 1, characterized in that: The above-mentioned large rocks on the surface of the seawall slope protection are cleaned up and the paving area is located, including: Locate the surface layer of the seawall slope protection; Define the area to be treated based on the surface layer of the seawall slope protection; Inspect the area to be treated and screen the large rocks on the surface of the seawall slope protection; Clear the large rocks on the surface of the seawall slope; After the large rocks on the surface of the seawall slope are cleared, the construction area of ​​the surface of the seawall slope is located.

3. The method for installing a steel casing according to claim 2, characterized in that: The method of driving the cast-in-place pile steel casing in the driving area includes: Set the area to be played; Carry out construction in the construction area; The steel casing of the bored pile is driven according to the construction of the driving area; During the driving process of the cast-in-place pile steel casing, the driving is carried out from top to bottom along the driving area; The steel casing of the bored piles is driven step by step.

4. The method for installing a steel casing according to claim 3, characterized in that: The method of backfilling the surrounding areas of the cast-in-place pile steel casing and placing a lifting frame for concrete pouring includes: Fixed frame cast-in-place pile steel casing; Position the outer peripheral side of the cast-in-place pile steel casing; Backfill the outer periphery of the cast-in-place pile steel casing and the surface layer of the seawall slope protection; Monitor backfill progress; After the backfill is completed, a lifting frame for concrete pouring is placed on the surface of the seawall slope, and the stability of the lifting frame relative to the surface of the seawall slope is tested.

5. The method for installing a steel casing according to claim 4, characterized in that: The three-piece grab is installed on the lifting frame, and the blocks in the steel casing are dug out by the deadweight impact of the three-piece grab until the basic silt layer in the casing is dug, including: Fixed frame lifting frame; Install the lifting frame and install the three-piece grab bucket on the lifting frame; Top-down movement based on three-piece grab; The rocks in the steel casing are dug out by the deadweight impact of the three-piece grab bucket; The excavation process of the rock blocks in the steel casing is monitored in real time until the basic silt layer in the casing is reached.

6. The method for installing a steel casing according to claim 5, characterized in that: The method of drilling a hole for a cast-in-place pile comprises: Fixed frame cast-in-place piles; Defining a first formed hole based on the detection of the cast-in-place pile; Drilling the first forming hole; The drilling of the first forming hole is monitored in real time and the bored piles are drilled to define the casting holes.

7. The method for installing a steel casing according to claim 6, characterized in that: The method of drilling holes for cast-in-place piles also includes: In the detection of cast-in-place piles, multiple spatial parameters are collected along the axial direction of the cast-in-place piles; Determine multiple hole position features according to multiple spatial parameters; Defining a first forming hole based on a comparison of a plurality of hole position features; Associating the first formed hole and the cast-in-place pile; A corresponding drilling tool is matched according to the first formed hole and the cast-in-place pile, and the first formed hole is expanded based on the drilling tool to form a casting hole.

8. The method for installing a steel casing according to claim 7, characterized in that: The concrete pouring of the bored pile along the hole until the entire bored pile construction is completed includes: Fixed frame pouring hole; Casting the casting holes; Concrete pouring of the bored pile is carried out along the pouring hole; Monitor the concrete pouring of the bored pile in real time until the construction of the entire bored pile is completed.

9. The method for installing a steel casing according to claim 8, characterized in that: The concrete pouring of the bored pile along the hole until the entire bored pile construction is completed also includes: During the concrete pouring of cast-in-place piles, the concrete pouring volume is monitored in real time; Define the pouring space according to the pouring amount of concrete and the diameter of the pouring hole; Match the corresponding casting allowance based on the casting space.

10. The method for installing a steel casing according to claim 9, characterized in that: The concrete pouring of the bored pile along the hole until the entire bored pile construction is completed also includes: Match the corresponding pouring system according to the pouring allowance and pouring depth; Based on this casting system, the concrete pouring of the bored pile is controlled until the construction of the entire bored pile is completed.

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