CN212512756U - Weak blasting system of drilling bored concrete pile boulder deep hole - Google Patents
Weak blasting system of drilling bored concrete pile boulder deep hole Download PDFInfo
- Publication number
- CN212512756U CN212512756U CN202021214851.3U CN202021214851U CN212512756U CN 212512756 U CN212512756 U CN 212512756U CN 202021214851 U CN202021214851 U CN 202021214851U CN 212512756 U CN212512756 U CN 212512756U
- Authority
- CN
- China
- Prior art keywords
- pipe
- boulder
- drilling
- explosive
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 238000005422 blasting Methods 0.000 title claims abstract description 18
- 239000002360 explosive Substances 0.000 claims abstract description 48
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 230000037452 priming Effects 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000004880 explosion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model relates to a weak blasting system of drilling bored concrete pile boulder deep hole, including protecting wall pipe, explosive tube, yellow mud shutoff, counter weight, emulsion explosive, initiating electric detonator, detonating tube, pvc pipe, lifting rope, stake hole, drilling, boulder and closing cap; the foundation in the stake hole outside of drilling bored concrete pile is equipped with the drilling through getting the core drill, the drilling runs through the boulder, arrange a plurality of drilling along stake hole outward flange certain distance, every drilling installs the protecting wall pipe in drilling, the explosive pipe has been placed in the protecting wall pipe, the explosive pipe adopts pvc pipe as the extranal packing, the inside from the bottom up of pvc pipe installs yellow mud shutoff in proper order, the counter weight, emulsion explosive, the electric detonator that explodes, detonating tube and yellow mud shutoff, pvc pipe top is provided with the lifting rope, pvc pipe bottom sets up the closing cap. The utility model has the advantages that: the utility model discloses a set up the broken boulder of explosive outside the stake hole to can take out the boulder and do benefit to the stake hole and creep into.
Description
Technical Field
The utility model relates to a bored pile construction technical field, concretely relates to weak blasting system of bored concrete pile boulder deep hole.
Background
When the bored pile is constructed in a region containing granite in the stratum, boulders (granite spherical irregular weathered objects) are often encountered, so that the bored pile is difficult to form holes. Due to the fact that the strength of the granite boulder is high, the cast-in-situ bored pile cannot be constructed to the designed height.
The common engineering measures for treating the boulder caused by the sinking of the steel casing mainly comprise the following steps:
the excavation method can directly excavate the boulder to expose and then carry out crushing and removal when the boulder is buried shallowly. However, when the depth of the boulder is large, the method is difficult to realize.
According to the hole sweeping method, after the steel casing sinks and meets boulders, the boulders are removed by the hole forming drill, under the condition, the drill bit of the hole forming drill cannot drill out the lower bottom opening of the casing because the steel casing impacts the bottom curling edge in the sinking process, so that the boulders cannot be drilled and broken, and the drill bit of the drill is easy to wear. Even if the bottom of the steel pile casing is not curled and deformed, the steel pile casing is difficult to follow and sink due to incomplete treatment of the boulder caused by the gap between the steel pile casing and the hole-forming drilling machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing a weak blasting system of drilling bored concrete pile boulder deep hole, can drive boulder high-efficiently, reliably.
The system comprises a wall protection pipe, an explosive pipe, a yellow mud plug, a counterweight, emulsion explosive, an electric detonator, a detonating tube, a pvc pipe, a lifting rope, a pile hole, a drill hole, a boulder and a sealing cover; the foundation in the stake hole outside of drilling bored concrete pile is equipped with the drilling through getting the core drill, the drilling runs through the boulder, arrange a plurality of drilling along stake hole outward flange certain distance, every drilling installs the protecting wall pipe in drilling, the explosive pipe has been placed in the protecting wall pipe, the explosive pipe adopts pvc pipe as the extranal packing, the inside from the bottom up of pvc pipe installs yellow mud shutoff in proper order, the counter weight, emulsion explosive, the electric detonator that explodes, detonating tube and yellow mud shutoff, pvc pipe top is provided with the lifting rope, pvc pipe bottom sets up the closing cap.
Preferably, the method comprises the following steps: the counterweight adopts a steel bar or a prefabricated block with the same inner diameter as the PVC pipe.
Preferably, the method comprises the following steps: the drill holes are arranged at the positions 30-50cm away from the outer edges of the pile holes, the distance from each drill hole to the center of the pile hole is equal, and the distance between the drill holes is 20-30 cm.
Preferably, the method comprises the following steps: the drill holes for placing the explosive tubes and the drill holes for not placing the explosive tubes are arranged at intervals, and the explosive tubes are placed in the drill holes at the outermost sides.
Preferably, the method comprises the following steps: the balance weight and the pvc pipe are fixed through a steel ring.
Preferably, the method comprises the following steps: the lifting rope is fixed on the pvc pipe.
Preferably, the method comprises the following steps: the diameter of the pvc pipe is 1-2cm smaller than that of the wall protecting pipe.
Preferably, the method comprises the following steps: the wall protecting pipe is made of plastic pipe.
The utility model has the advantages that:
1. the utility model discloses a set up the broken boulder of explosive outside the stake hole to can take out the boulder and do benefit to the stake hole and creep into.
2. The explosive sets up along the stake hole outside, and the interval sets up the explosive in the drilling, and not all drilling all place the explosive, and the drilling that does not place the explosive can make the boulder produce the crack under the explosion effect, and is better to the crushing effect of boulder, also avoids the explosive excess to lead to the stake hole reaming serious.
3. The explosive tube can be better placed to the bottom of the retaining wall tube by applying the weight.
Drawings
FIG. 1 is a schematic sectional view of a drilling bored concrete pile boulder deep hole weak blasting system;
FIG. 2 is an illustration of an explosive tube;
fig. 3 is a plan view of the pile hole, the boulder, and the bore hole (explosive hole distribution diagram).
Description of reference numerals: the wall protection pipe comprises a wall protection pipe 1, an explosive pipe 2, a yellow mud plug 3, a counterweight 4, an emulsion explosive 5, a detonating electric detonator 6, a detonating pipe 7, a pvc pipe 8, a lifting rope 9, a pile hole 101, a drill hole 102, a boulder 103, a core drilling machine 11, a foundation 12 and a sealing cover 13.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Example one
The embodiment of the application provides a borehole filling pile boulder deep hole weak blasting system, which comprises a wall protection pipe 1, an explosive pipe 2, a yellow mud plug 3, a counterweight 4, an emulsion explosive 5, an electric detonator 6, a detonating pipe 7, a pvc pipe 8, a lifting rope 9, a pile hole 101, a borehole 102, a boulder 103, a foundation 12 and a sealing cover 13; a foundation 12 on the outer side of a pile hole 101 of a bored pile is drilled with drill holes 102 through a core drilling machine 11, the distance between every two adjacent drill holes 102 is 20-30cm, the drill holes 102 are arranged at a distance of 30-50cm from the edge of the pile hole 101, a boulder 103 penetrates through each drill hole 102, a plurality of drill holes 102 are arranged along the outer edge of the pile hole 101, a casing pipe 1 is installed in each drill hole 102, an explosive pipe 2 is placed in each casing pipe 1, the explosive pipe 2 adopts a pvc pipe 8 as an outer package, yellow mud plugs 3, counterweights 4, emulsion explosives 5, electric initiating detonators 6, detonating pipes 7 and yellow mud plugs 3 are sequentially installed in the pvc pipe 8 from bottom to top, lifting ropes 9 are arranged at the top of the pvc pipe 8, and the sealing covers 13 are connected through bolts under the yellow mud plugs to prevent the explosive pipes 2 from leaking due to untight plugging. Wherein, for convenient installation, the fit size of each part should be the same with the inner diameter of pvc pipe 8. The drill hole 102 is arranged at the edge of the boulder 103, and the explosive tubes 2 are arranged in the drill hole 102 at intervals, so that the blasting direction is controlled, and a better blasting effect is achieved.
Example two
The second embodiment of the application provides a construction method of a borehole filling pile boulder deep hole weak blasting system, which comprises the following steps:
s1, drilling holes 102 in the boulder 103 by using the core extractor 11, wherein the holes 102 are arranged at a distance of 30-50cm from the outer edge of the pile hole 101, the distance from each hole 102 to the center of the pile hole 101 is equal, the distance between the holes 102 is 20-30cm, and the number of the holes 102 is determined according to the width of the boulder 103.
S2, manufacturing a explosive tube 2, selecting a pvc tube 8 with the diameter 1-2cm smaller than that of a casing tube 1 as an outer package of the explosive tube 2, arranging a yellow mud plug 3 at the bottom of the explosive tube 2, installing a balance weight 4 above the yellow mud plug 3 by using a steel ring, sequentially placing an emulsion explosive 5, an electric detonator 6 and a detonating tube 7 after the balance weight 4 is installed, finally embedding a lifting rope 9, filling the yellow mud plug 3 at the top of the pvc tube 8, and connecting a sealing cover 13 below the yellow mud plug 3 at the bottom of the explosive tube 2 through bolts.
And S3, burying the wall protection pipe 1 in the drill hole 102 every other drill hole 102, wherein the wall protection pipe 1 is made of a plastic pipe.
S4, dropping the explosive tubes 2 in the designated drill holes 102 by using the lifting ropes 9, wherein the two drill holes 102 at the outermost sides of the boulder 103 must drop the explosive tubes 2. The explosion system can adopt a controlled explosion mode and perform segmental millisecond explosion, so that the maximum single-shot dosage can be strictly controlled, the boulder is subjected to weak explosion, and the damage to a pile hole can be avoided to the maximum extent.
S5, detonating the explosive tube 2 and emptying the boulder 103 to remove slag.
Claims (8)
1. The utility model provides a weak blasting system of drilling bored concrete pile boulder deep hole which characterized in that: the device comprises a wall protection pipe (1), an explosive pipe (2), a yellow mud plug (3), a balance weight (4), an emulsion explosive (5), a detonating electric detonator (6), a detonating tube (7), a pvc pipe (8), a lifting rope (9), a pile hole (101), a drill hole (102), an orphan stone (103) and a sealing cover (13); the foundation (12) outside the pile hole (101) of drilling bored concrete pile is equipped with drilling (102) through getting core machine (11) brill, drilling (102) run through boulder (103), arrange a plurality of drilling (102) along pile hole (101) outward flange certain distance, every drill hole (102) is installed in drilling (102) and is protected wall pipe (1), explosive pipe (2) have been placed in protecting wall pipe (1), explosive pipe (2) adopt pvc pipe (8) as the extranal packing, inside from the bottom up of pvc pipe (8) installs yellow mud shutoff (3) in proper order, counter weight (4), emulsion explosive (5), priming electric detonator (6), detonating tube (7) and yellow mud shutoff (3), pvc pipe (8) top is provided with lifting rope (9), pvc pipe (8) bottom sets up closing cap (13).
2. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the counterweight (4) adopts a steel bar or a prefabricated block with the same inner diameter as the PVC pipe (8).
3. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the drill holes (102) are arranged at a distance of 30-50cm from the outer edge of the pile hole (101), each drill hole (102) is equidistant from the center of the pile hole (101), and the distance between the drill holes (102) is 20-30 cm.
4. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the drill holes (102) for placing the explosive tubes (2) and the drill holes (102) for not placing the explosive tubes (2) are arranged at intervals, and the explosive tubes (2) are placed in the drill holes (102) at the outermost sides.
5. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the balance weight (4) and the pvc pipe (8) are fixed through a steel ring.
6. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the lifting rope (9) is fixed on the pvc pipe (8).
7. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the diameter of the pvc pipe (8) is 1-2cm smaller than that of the wall protection pipe (1).
8. The cast-in-situ bored pile boulder deep hole weak blasting system according to claim 1, characterized in that: the wall protection pipe (1) is a plastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214851.3U CN212512756U (en) | 2020-06-28 | 2020-06-28 | Weak blasting system of drilling bored concrete pile boulder deep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214851.3U CN212512756U (en) | 2020-06-28 | 2020-06-28 | Weak blasting system of drilling bored concrete pile boulder deep hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212512756U true CN212512756U (en) | 2021-02-09 |
Family
ID=74438983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021214851.3U Active CN212512756U (en) | 2020-06-28 | 2020-06-28 | Weak blasting system of drilling bored concrete pile boulder deep hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212512756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493467A (en) * | 2022-10-14 | 2022-12-20 | 中铁二十三局集团第四工程有限公司 | Underwater loosening blasting construction method for cast-in-situ bored pile |
-
2020
- 2020-06-28 CN CN202021214851.3U patent/CN212512756U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493467A (en) * | 2022-10-14 | 2022-12-20 | 中铁二十三局集团第四工程有限公司 | Underwater loosening blasting construction method for cast-in-situ bored pile |
| CN115493467B (en) * | 2022-10-14 | 2024-02-13 | 中铁二十三局集团第四工程有限公司 | Underwater loose blasting construction method for bored pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111720051B (en) | Construction method of bored pile for complex inclined rock and boulder geology | |
| CN102032844B (en) | Method for blasting closed rock of shield tunnel in complex strata | |
| CN103244180B (en) | Gob-side entry driving surrounding rock control method using remaining small pillars | |
| CN101864961B (en) | Method for actively preventing and controlling rock burst | |
| CN108331573A (en) | The abandoned well administering method of bank | |
| EA010189B1 (en) | Performing gun assembly and method for enhancing perforation depth | |
| CN110118084B (en) | Ultra-deep shaft construction method | |
| CN102808621B (en) | Method for blasting heavy-inclined thick ore bodies | |
| CN107035376B (en) | One kind common law in huge thick bedrock aquifer digs shaft construction method | |
| CN105401946A (en) | Reverse blasting excavation method of shaft and pilot shaft | |
| KR20140022193A (en) | Blast pressure effusion inhibition device and method for blasting the vast hole using the same | |
| CN101660313A (en) | Well-sinking construction method | |
| KR102131823B1 (en) | Method of excavation | |
| CN102031775A (en) | Construction technology of drilled pile in hard oblique rocks by medium hole blasting | |
| CN107120137A (en) | A kind of coal roadway tunneling is along seat earth Deephole pre-splitting blasting pumping method | |
| CN212512756U (en) | Weak blasting system of drilling bored concrete pile boulder deep hole | |
| CN101487376A (en) | One-time excavation construction method for large-diameter large-depth pressure regulating well pilot shaft | |
| CN109208594B (en) | Treatment method for steel casing sinking meeting boulder, steel casing structure and drilled pile | |
| RU2699102C1 (en) | Suspended well stem | |
| CN111238329A (en) | Method for performing geometric forming blasting on semi-coal rock roadway by adopting instantaneous bursting device | |
| CN105019431B (en) | Crush and complete alternate steep dip stratified rock masses Large Diameter Super-long Bored Piles construction method | |
| KR100725450B1 (en) | Tunnel blasting method for three-arch tunnel | |
| CN108061492A (en) | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 0.8-1m | |
| CA1212252A (en) | Method of driving steel profiles into a rock substratum | |
| CN111521082A (en) | One-time well completion method by matching high-pass shaft and medium-length hole sectional blasting in raise-boring construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |