DE202022103722U1 - A hole-digging construction structure for anti-slip poles - Google Patents

Abstract

A digging construction structure for anti-slip piles, characterized in that it comprises a plurality of rotary excavation areas (2), a plurality of blasting holes (3) and a plurality of human excavation areas (4) located within a rectangular anti-slip pile (1) are arranged with the outer edges of the rotary excavation areas (2) on the edge of the rectangular anti-slip pole (1) and the human excavation areas (4) the outside of the rotary excavation areas (2) of the rectangular anti-slip pole ( 1) wherein the blast holes (3) are distributed within the human excavation areas (4), the charge structure in the blast hole (3) comprising bamboo strips (5), emulsion explosives (6), detonating cord (7) and detonators (8), the Emulsion explosives (6) include boosted explosives at an end remote from the detonator (8) and regular explosives evenly spaced on the bamboo strip (5), the amount of boosted explosives toffe is twice the amount of normal explosives, where the detonating cord(7) is connected to the boosted explosives and all normal explosives, and the detonator(8) is connected to the detonating cord(7).

Description

Technical part

The present utility model belongs to the field of hole-forming structure of anti-slip poles, particularly to a hole-digging structure for anti-slip poles.

background technique

Slope stabilization refers to the support, reinforcement and protection measures on slopes to ensure the safety of the slope and its surroundings.

Capable of supporting the main part of a structure with few stories and high pressure, human excavation site piles are in widespread use today. Pile caps are placed on top of the piles, which are then tied and tied with girders so that the forces are evenly distributed on each pile to support the entire building. The cast-in-place piles in the human excavation area are piles with pile holes formed by hand excavation, and then formed by setting up reinforcing cages and pouring concrete.

However, for hard rock strata, due to the increasing difficulty of excavating the rock strata, the efficiency of manual excavation is extremely low, and cannot meet the needs of excavating the piles in the human excavation area as quickly as possible, in order to achieve support strength as quickly as possible, which is extremely detrimental to the safety of the slope and significantly affects the progress of construction. The anti-slip piles often need to be built in a rectangular shape, and the use of rotary mechanical excavation only allows circle digging, the rectangular support cannot be realized.

Content of the utility model

The present utility model provides a hole digging construction structure for anti-skid piles, which is used to solve the technical problems that in hard rock strata, however, the manual excavation efficiency is extremely low due to the increasing difficulty of digging the rock strata and the Can not meet the requirements of digging the piles in the human excavation area as soon as possible to achieve the support strength as soon as possible, which is extremely adverse to the safety of the slope, and that the anti-slip piles are often in a rectangular shape need to be built, and the use of rotary mechanical excavation only allows the digging of circles, and the rectangular support cannot be realized.

In order to achieve the above purpose, the present utility model adopts the following technical solution: an anti-skid pile hole digging design structure, which includes a plurality of rotary excavation areas, a plurality of blasting holes, and a plurality of human excavation areas located within a rectangular anti -slip piles are arranged, with the outer edges of the rotary excavation areas being on the edge of the rectangular anti-slip pile and the human excavation areas being the outside of the rotary excavation areas of the rectangular anti-slip pile, with the blast holes distributed inside the human excavation areas, the charge structure in the blast hole comprising bamboo strips, emulsion explosives, detonating cord and detonator, the emulsion explosives comprising boosted explosives at an end remote from the detonator and normal explosives evenly spaced on the bamboo strip, wherein d The amount of boosted explosives is twice the amount of normal explosives, with the detonating cord connected to the boosted explosives and all normal explosives, and the detonator connected to the detonating cord.

By using the above technical solution, the combined hole-digging pile is used, that is, the combination of rotary excavation, blasting and manual excavation of piles is used for construction. When excavating hard rock layers, the difficulty of excavating piles in the human excavation area is greatly reduced, and excavating hard rock layers ensures the smooth progress of the construction of piles in the human excavation area and the quality of the anchor cable construction. The use of mechanical hole formation to assist manual excavation greatly reduces labor and has good economic advantages, and the reasonable arrangement of the amount of explosives in the blast hole is not prone to energy loss, improving the blasting effect.

Preferably, the rotary excavation area comprises a first row of rotary excavation areas and a second row of rotary excavation areas, the circle of the first row of rotary excavation areas being circumscribed at the edge of the rotary excavation area, the second row of rotary excavation areas between adjacent first rows of rotary excavation areas and having an overlap with the first rows of rotary excavation areas, the second row of rotary excavation areas being formed by excavation after backfilling the first row of rotary excavation areas.

By using the above technical solution, perforations during drilling are reduced.

Preferably, the blast holes include a first group of blasts between the rotary excavation areas, a second group of blasts on the side line of the anti-slip pile between the rotary excavation areas, and a third group of blasts on the four corners of the anti-slip pile and outside the rotary excavation areas.

By using the above technical solution, through a reasonable arrangement of the various areas of the human excavation area and the edge line of the anti-slip pile, the excavation of the piles in the human excavation area after blasting becomes significantly less difficult.

Preferably, the first set of blasts is at 90° to the work surface, the second set of blasts is at 90° to the work surface, and the third set of blasts is at 92° to the work surface.

By using the above technical solution, the explosive effect is better.

Preferably, the first group of blasts are evenly arranged in two places, the second group of blasts and the third group of blasts are evenly arranged in three places.

By using the above technical solution, the number of blasting is reasonably arranged according to the area of the human excavation area, so the blasting effect is better.

The amount of charge in the blast holes of the first, the second and the third group of blasts is preferably 300 g each.

Due to the technical solution described above, the blasting effect meets the requirements and the disturbance of the surrounding rock is reduced.

Preferably, the horizontal cross-sectional size of the anti-slip pile is 2.9m x 4.1m, with the first row of rotary excavation areas being located at three locations on the long side and the first row of rotary excavation areas being located at two locations on the short side where the diameter of the rotary excavation area of both the first row of rotary excavation areas and the second row of rotary excavation areas is 1200mm, the pitch is 250mm, the diameter of the blast hole is 42mm, and the distance between the rotary excavation areas is 0.25m.

By using the above technical solution, the size arrangement is reasonable, and the supporting effect of the manufactured anti-slip piles in several places is stable and reliable.

The advantageous effect of the present utility model is that the rotary excavation is performed in groups to reduce perforation when drilling, that the combined hole digging pile is used, that is, the combination of rotary excavation, blasting and manual excavation of piles is used for construction becomes. When excavating hard rock layers, the difficulty of excavating piles in the human excavation area is greatly reduced, and excavating hard rock layers ensures the smooth progress of the construction of piles in the human excavation area and the quality of the anchor cable construction. The use of mechanical hole formation to support manual excavation greatly reduces labor and has good economic benefits.

Other features and advantages of the present utility model are set forth in the following description and in part will be apparent from the description or understood by practice of the present utility model; the main purpose and other advantages of the present utility model can be realized and obtained by the specific embodiments given in the specification.

character list

• 1 Fig. 12 is a schematic representation of the construction structure of the combined digging pile according to an embodiment of the present utility model;
• 2 Fig. 12 is a schematic representation of a charge structure in the blast hole according to an embodiment of the present utility model;

Reference List

1

Anti-slip post

2

rotary excavation area

21

first row of rotary excavation areas

22

second row of rotary excavation areas

3

blast hole

31

first group of blasts

32

second group of blasts

33

third group of blasts

4

human excavation area

5

bamboo strips

6

emulsion explosive

7

detonating cord

8th

detonator

Specific Embodiments

The technical solutions of the present utility model are described in detail below using embodiments. The following embodiments are only exemplary and can only be used to explain and illustrate the technical solutions of the present utility model, and cannot be construed as limitations on the technical solutions of the present utility model.

A hole digging design structure for anti-slip piles, comprising a plurality of rotary excavation areas 2, a plurality of blasting holes 3 and a plurality of human excavation areas 4 arranged within a rectangular anti-slip pile 1, with the outer edges of the rotary excavation areas 2 are located on the edge of the rectangular anti-slip pole 1 and the human excavation areas 4 are the outside of the rotary excavation areas 2 of the rectangular anti-slip pole 1, with the blast holes 3 distributed within the human excavation areas 4, with the charge structure in the blast hole 3 bamboo strip 5, emulsion explosives 6, detonating cord 7 and detonator 8, the emulsion explosives 6 comprising boosted explosives at an end remote from the detonator 8 and normal explosives evenly spaced on the bamboo strip 5, the amount of the boosted explosives double as large as the amount of normal en explosives, where the detonating cord 7 is connected to the enhanced explosives and all normal explosives and the detonator 8 is connected to the detonating cord 7.

The combined hole-digging pile is used, that is, the combination of rotary excavation, blasting and manual excavation of piles is used for construction. When excavating hard rock strata, the difficulty of excavating piles in the human excavation area 4 is greatly reduced, and excavating hard rock strata ensures smooth operation of pile construction in the human excavation area 4 and the quality of anchor cable construction. The use of mechanical hole formation to assist manual excavation greatly reduces labor and has good economic advantages, and the reasonable arrangement of the amount of explosives in the blast hole is not prone to energy loss, improving the blasting effect.

The rotary excavation area 2 comprises a first row of rotary excavation areas 21 and a second row of rotary excavation areas 22, the circle of the first row of rotary excavation areas 21 being circumscribed at the edge of the rotary excavation area 2, the second row of rotary excavation areas 22 being arranged between adjacent first rows of rotary excavation areas 21 and having an overlap with the first row of rotary excavation areas 21, the second row of rotary excavation areas 22 being formed by excavation after backfilling the first row of rotary excavation areas 21 to reduce perforations during drilling.

The blast holes 3 include a first group of blasts 31 between the rotary excavation areas 2, a second group of blasts 32 on the side line of the anti-slip pile 1 between the rotary excavation areas 2, and a third group of blasts 33 on the four corners of the anti- Slip pile 1 and outside the rotary excavation areas 2, through a sensible arrangement of the various areas of the human excavation area 4 and the edge line of the anti-slip pile 1, the excavation of the piles in the human excavation area 4 after the blasting becomes significantly less difficult.

The first group of blasts 31 has an angle of 90° to the work surface, the second group of blasts 32 has an angle of 90° to the work surface and the third group of blasts 33 has an angle of 92° to the work surface, which improves the blasting effect .

The first group of blasts 31 are evenly arranged in two places, the second group of blasts 32 and the third group of blasts 33 are evenly arranged in three places, the number of blasts becomes arranged reasonably according to the area of the human excavation area 4, so that the blasting effect is better.

The amount of charge in the blast holes 3 of the first group of blasts 31, the second group of blasts 32 and the third group of blasts 33 is 300 g each, the blasting effect meets the requirements and reduces the disturbance of the surrounding rock.

The horizontal cross-sectional size of the anti-slip pile 1 is 2.9 m × 4.1 m, with the first row of rotary excavation areas 21 arranged in three places on the long side and the first row of rotary excavation areas 21 in two places on the short side side, the diameter of the rotary excavation area of both the first row of rotary excavation areas 21 and the second row of rotary excavation areas 22 is 1200mm, the pitch is 250mm, the diameter of the blast hole 3 is 42mm, and the distance between the rotary excavation areas 2 is 0, 25 m, the size arrangement is reasonable and the supporting effect of the manufactured anti-slip piles 1 is stable and reliable in several places.

• Schritt 1. Graben von Löchern in der ersten Reihe von Drehaushubbereichen 21 und Ausführen der Hinterfüllung, die Öffnungen werden vor dem Aushub nivelliert, und die Umzäunung des Pfahlbereichs, die vorübergehenden Schutzmaßnahmen, die Abfangung und Entwässerung der Oberfläche sowie Antisickerungsarbeit werden vorbereitet, und während der Bauarbeiten in der Regenzeit wird ein Fangdamm von angemessener Höhe auf dem Boden der Öffnung errichtet; wenn die Geländeneigung der Öffnung groß ist und sich nicht für den Aushub eignet, sollten Ziegel oder Blöcke von Hand gestapelt und zugeschnitten werden, um eine Bauplattform zu bilden; während des Aushubs der Pfahllöcher sollten Stützwände aus Stahlbeton rechtzeitig unterstützt werden, die Dicke der Stützwände sollte den Planungsanforderungen entsprechen und gleichmäßig und in gutem Kontakt mit dem umgebenden Gestein sein; die Pfahllöcher hinter der Stützwände sollten den Planungsanforderungen entsprechen und vertikal und glatt gehalten werden;
• Schritt 2. Graben von Löchern in der zweiten Reihe von Drehaushubbereichen 22 und Ausführen der Hinterfüllung, wobei derselbe Aushub wie in Schritt 1 durchgeführt wird;
• Schritt 3. Gleichmäßige Positionierung und Anreißen der Sprenglöcher 3;
• Schritt 4. Bohren von Sprenglöchern 3 mit einer pneumatischen Handgesteinsbohrmaschine;
• Schritt 5. Die Sprenglöcher 3 werden mit Sprengstoffen gefüllt;
• Schritt 6. Detonation der Sprenglöcher 3;
• Schritt 7. Nach der Detonation wird eine Belüftung durchgeführt und nach bestandener Gasprüfung wird eine Inspektion vor Ort durchgeführt;
• Schritt 8. Nach der Inspektion vor Ort wird der Rückstand entsprechend der Höhe der einzelnen Schalungen manuell geräumt und eine Stützwand für jede geräumte Schalung errichtet.

Construction method of a digging construction structure for anti-slip piles 1, which includes the following steps:

• Step 1. Digging holes in the first row of rotary excavation areas 21 and carrying out backfill, the openings are leveled before excavation, and the fence of the pile area, the temporary protective measures, the surface interception and drainage and anti-seepage work are prepared, and during the construction work in the rainy season, a cofferdam of appropriate height shall be erected at the bottom of the opening; when the terrain slope of the opening is large and not suitable for excavation, bricks or blocks should be stacked and cut by hand to form a construction platform; during the excavation of the pile holes, reinforced concrete retaining walls should be supported in a timely manner, the thickness of the retaining walls should meet the design requirements and be uniform and in good contact with the surrounding rock; the pile holes behind the retaining walls should meet the design requirements and be kept vertical and smooth;
• Step 2. Digging holes in the second row of rotary excavation areas 22 and carrying out backfilling, using the same excavation as in Step 1;
• Step 3. Even positioning and scribing of blast holes 3;
• Step 4. Drilling blast holes 3 with a hand-held pneumatic rock drill;
• Step 5. The blast holes 3 are filled with explosives;
• Step 6. Detonation of blast holes 3;
• Step 7. After detonation, ventilation is carried out, and after passing the gas test, an on-site inspection is carried out;
• Step 8. After the on-site inspection, the backlog is manually cleared according to the height of each formwork and a retaining wall is erected for each cleared formwork.

In step 1, the first series of rotary excavation areas 21 are drilled in a V-shaped sequence, and the residue removed from the first hole is lifted out of the hole, the residue removed from the second hole is backfilled into the first hole, and so on. the residue removed from the first hole is then poured into the last hole for backfill.

The above are just preferred specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto. Any variations or substitutions that a person skilled in the art familiar with this technical field can think of within the technical scope disclosed by the present utility model fall under the scope of protection of the present utility model.

Claims (7)

A digging construction structure for anti-slip piles, characterized in that it comprises a plurality of rotary excavation areas (2), a plurality of blasting holes (3) and a plurality of human excavation areas (4) located within a rectangular anti-slip pile (1) are arranged with the outer edges of the rotary excavation areas (2) on the edge of the rectangular anti-slip pole (1) and the human excavation areas (4) the outside of the rotary excavation areas (2) of the rectangular anti-slip pole ( 1) wherein the blast holes (3) are distributed within the human excavation areas (4), the charge structure in the blast hole (3) comprising bamboo strips (5), emulsion explosives (6), detonating cord (7) and detonators (8), the Emulsion Explosives(6) boosted explosives at an end remote from the detonator(8) and normal explosives that evenly spaced on the bamboo strip (5), the amount of the boosted explosives being twice the amount of the normal explosives, the detonating cord (7) connected to the boosted explosives and all the normal explosives, and the detonator (8) is connected to the detonating cord (7). A hole-digging construction structure for anti-slip piles, according to claim 1 , characterized in that the rotary excavation area (2) comprises a first row of rotary excavation areas (21) and a second row of rotary excavation areas (22), the circle of the first row of rotary excavation areas (21) being circumscribed at the edge of the rotary excavation area (2), the second row of rotary excavation areas (22) is disposed between adjacent first rows of rotary excavation areas (21) and has an overlap with the first rows of rotary excavation areas (21), the second row of rotary excavation areas (22) being excavated after backfilling the first row of Rotary excavation areas (21) is formed. A hole-digging construction structure for anti-slip piles, according to claim 2 , characterized in that the blast holes (3) comprise a first group of blasts (31) between the rotary excavation areas (2), a second group of blasts (32) on the side line of the anti-slip pile (1) between the rotary excavation areas (2) , and a third group of blasts (33) at the four corners of the anti-slip pole (1) and outside the rotary excavation areas (2). A hole-digging construction structure for anti-slip piles, according to claim 3 characterized in that the first group of blasts (31) has an angle of 90° to the work surface, the second group of blasts (32) has an angle of 90° to the work surface and the third group of blasts (33) has an angle of 92° to the work surface. A hole-digging construction structure for anti-slip piles, according to claim 4 characterized in that the first group of blasts (31) are evenly arranged in two places, the second group of blasts (32) and the third group of blasts (33) are evenly arranged in three places. A hole-digging construction structure for anti-slip piles, according to claim 5 , characterized in that the amount of charge in the blast holes (3) of the first, the second and the third group of blasts is 300 g each. A hole-digging construction structure for anti-slip piles, according to claim 6 characterized in that the horizontal cross-sectional size of the anti-slip pile (1) is 2.9 m × 4.1 m, the first row of rotary excavation areas (21) being arranged in three places on the long side and the first row of rotary excavation areas (21) is arranged at two positions on the short side, wherein the diameter of the rotary excavation area of both the first row of rotary excavation areas (21) and the second row of rotary excavation areas (22) is 1200mm, the pitch is 250mm, the diameter of the blast hole(3) is 42 mm and the distance between the rotary excavation areas(2) is 0.25 m.

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