CN220136178U - Simple safety protection device suitable for rock foundation pit blasting excavation - Google Patents
Simple safety protection device suitable for rock foundation pit blasting excavation Download PDFInfo
- Publication number
- CN220136178U CN220136178U CN202321574945.5U CN202321574945U CN220136178U CN 220136178 U CN220136178 U CN 220136178U CN 202321574945 U CN202321574945 U CN 202321574945U CN 220136178 U CN220136178 U CN 220136178U
- Authority
- CN
- China
- Prior art keywords
- steel
- explosion
- rectangular
- steel frame
- blasting excavation
- 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
- 238000005422 blasting Methods 0.000 title claims abstract description 24
- 239000011435 rock Substances 0.000 title claims abstract description 19
- 238000009412 basement excavation Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 118
- 239000010959 steel Substances 0.000 claims abstract description 118
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 description 9
- 230000035939 shock Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a simple safety protection device suitable for blasting excavation of a rock foundation pit, which comprises a rectangular steel frame, wherein steel pipe supporting legs are respectively arranged at four corners of the rectangular steel frame, two ends of each steel pipe supporting leg extend to the upper part and the lower part of the rectangular steel frame respectively, a steel cross beam is fixed between two steel pipe supporting legs positioned at diagonal positions in the four steel pipe supporting legs, the two steel cross beams are in cross connection, an explosion-proof steel plate is arranged above an inner space of the rectangular steel frame, and the explosion-proof steel plate is connected with the two steel cross beams through springs and is suspended between the rectangular steel frame and the steel cross beams. The utility model has the advantages that: the device has simple structure, easy operation, time and labor saving, convenient maintenance and repeated use.
Description
Technical Field
The utility model relates to the technical field of rock foundation pit blasting excavation, in particular to a simple safety protection device suitable for rock foundation pit blasting excavation.
Background
When some foundation pits are excavated, hard rock layers can be encountered in the excavation range due to geological environment of the field, blasting excavation is needed for pit bottom rock at the moment, and when the foundation pits are located in urban dense areas or areas with more surrounding people, vehicles and buildings, protective measures are needed to be taken during blasting to avoid harm to surrounding people and property caused by splashing of broken rock and soil blocks. At present, most of construction sites adopt means of piling up fine sand bags at explosion points, covering metal nets and the like for protection, and the warning range during explosion is expanded as much as possible, but the measures have large workload, time and labor waste, increase the cost of construction machinery, materials and labor in an intangible way, and have poor effect and multiple potential safety hazards.
Disclosure of Invention
According to the defects of the prior art, the utility model provides a simple safety protection device suitable for blasting excavation of a rock foundation pit, an explosion-proof steel plate is arranged above an inner space of a rectangular steel frame, the explosion-proof steel plate is connected with a steel beam through a spring and is suspended between the rectangular steel frame and the steel beam, a circle of vertically arranged wire netting is arranged around the upper circumference of the rectangular steel frame, during blasting, explosion shock waves push the explosion-proof steel plate to lift upwards, the energy of explosion shock is absorbed through compression of the spring, and the explosion-proof steel plate and the vertically arranged wire netting around can block splashing of broken stones, so that harm to surrounding personnel and property caused by splashing of broken rock and soil blocks can be effectively avoided.
The utility model is realized by the following technical scheme:
simple and easy safety device suitable for rock foundation ditch blasting excavation, its characterized in that: including rectangular steel frame, rectangular steel frame four corners position department respectively is provided with a steel pipe landing leg, the both ends of steel pipe landing leg extend to respectively rectangular steel frame top and below, four be located two in the steel pipe landing leg are all fixed with a steel crossbeam between the steel pipe landing leg, two steel crossbeam cross connection, rectangular steel frame inner space's top is provided with an explosion-proof steel sheet, explosion-proof steel sheet passes through the spring with two steel crossbeam connect and hang in rectangular steel frame with between the steel crossbeam.
The rectangular steel frame is circumferentially provided with a circle of vertically arranged wire netting along the upper part of the rectangular steel frame.
The lower parts of the four steel pipe supporting legs are respectively provided with a steel plate, and reserved holes for installing ground nails are formed in the steel plates.
The four corners of the explosion-proof steel plate are respectively provided with an arc-shaped groove.
The springs are arranged at the two ends of the two steel cross beams and at the cross connection parts of the two steel cross beams respectively.
The utility model has the advantages that: the device has simple structure, easy operation, time and labor saving, convenient maintenance and repeated use.
Drawings
FIG. 1 is an overall schematic diagram of a simple safety device suitable for rock foundation pit blasting excavation of the present utility model;
fig. 2 is an enlarged view of a portion of the simple safety device of the present utility model adapted for use in rock pit blasting excavation.
Detailed Description
The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-2, the marks 1-9 are respectively indicated as a rectangular steel frame 1, steel pipe supporting legs 2, a steel beam 3, an explosion-proof steel plate 4, springs 5, wire netting 6, steel plates 7, reserved holes 8 and grooves 9.
Examples: as shown in fig. 1-2, the present embodiment relates to a simple safety protection device suitable for rock foundation pit blasting excavation, which mainly comprises a rectangular steel frame 1, steel pipe supporting legs 2, a steel beam 3, an explosion-proof steel plate 4, springs 5, wires 6 and steel plates 7, wherein the four corners of the rectangular steel frame 1 are respectively provided with one steel pipe supporting leg 2, the top ends and the bottom ends of the steel pipe supporting legs 2 respectively extend to the upper part and the lower part of the rectangular steel frame 1, and the steel pipe supporting legs 2 are used for fixing the simple safety protection device and the installation of the steel beam 3. A steel cross beam 3 is fixed between two steel pipe supporting legs 2 positioned at the diagonal positions of the four steel pipe supporting legs 2, and the two steel cross beams 3 are in cross connection. The explosion-proof steel plate 4 is arranged above the inner space of the rectangular steel frame 1, the explosion-proof steel plate 4 is connected with the two steel cross beams 3 through the springs 5 and is suspended between the rectangular steel frame 1 and the steel cross beams 3, the springs 5 are used for absorbing the energy of explosion impact generated during blasting, in the embodiment, the springs 5 are five and are respectively arranged at the two ends of the two steel cross beams 3 and at the cross connection part of the two steel cross beams 3, so that the uniform stress of the explosion-proof steel plate 4 during suspension and the explosion-proof steel plate 4 during blasting are not greatly deviated in the horizontal position can be ensured. In addition, the explosion-proof steel plate 4 is not contacted with the four steel pipe supporting legs 2 in a normal state, specifically, the four corners of the explosion-proof steel plate 4 are respectively provided with an arc-shaped groove 9, the arc-shaped grooves 9 are matched with the outer contour of the steel pipe supporting legs 2, when in blasting, the explosion-proof steel plate 4 can deviate in the horizontal position, the arc-shaped grooves 9 can reduce the collision between the explosion-proof steel plate 4 and the steel pipe supporting legs 2, and the explosion-proof steel plate 4 can also take a guiding effect, so that the explosion-proof steel plate 4 can move upwards better.
As shown in fig. 1-2, the rectangular steel frame 1 is circumferentially provided with a circle of vertically arranged wire netting 6 along the upper part thereof, and the wire netting 6 can prevent broken stone from splashing during blasting. Before blasting, the simple safety protection device is moved to the position above the blasting position, the explosion shock wave pushes the explosion-proof steel plate 4 to lift upwards, the energy of explosion shock is absorbed through the compression of the spring 5, and the explosion-proof steel plate 4 and the wire netting 6 which are vertically arranged around can block the splashing of broken stone.
As shown in fig. 1-2, a steel plate 7 is respectively arranged at the lower part of the four steel pipe supporting legs 2, and preformed holes 8 for installing ground nails are formed in the steel plate 7, and in this embodiment, the number of the preformed holes 8 formed in each steel plate 7 is two. When the explosive amount is small and the explosion energy is small, the simple safety protection device can be kept not to be separated from the ground through the dead weight; when explosive amount is large and explosion energy is large, the simple safety protection device can be prevented from being integrally separated from the ground by punching ground nails in the reserved holes 8 in the steel plate 7 at the bottom of the steel pipe supporting leg 2 for reinforcement.
The beneficial technical effects of this embodiment are: the device has simple structure, easy operation, time and labor saving, convenient maintenance and repeated use.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.
Claims (5)
1. Simple and easy safety device suitable for rock foundation ditch blasting excavation, its characterized in that: including rectangular steel frame, rectangular steel frame four corners position department respectively is provided with a steel pipe landing leg, the both ends of steel pipe landing leg extend to respectively rectangular steel frame top and below, four be located two in the steel pipe landing leg are all fixed with a steel crossbeam between the steel pipe landing leg, two steel crossbeam cross connection, rectangular steel frame inner space's top is provided with an explosion-proof steel sheet, explosion-proof steel sheet passes through the spring with two steel crossbeam connect and hang in rectangular steel frame with between the steel crossbeam.
2. A simple safety device for rock foundation pit blasting excavation as claimed in claim 1, wherein: the rectangular steel frame is circumferentially provided with a circle of vertically arranged wire netting along the upper part of the rectangular steel frame.
3. A simple safety device for rock foundation pit blasting excavation as claimed in claim 1, wherein: the lower parts of the four steel pipe supporting legs are respectively provided with a steel plate, and reserved holes for installing ground nails are formed in the steel plates.
4. A simple safety device for rock foundation pit blasting excavation as claimed in claim 1, wherein: the four corners of the explosion-proof steel plate are respectively provided with an arc-shaped groove.
5. A simple safety device for rock foundation pit blasting excavation as claimed in claim 1, wherein: the springs are arranged at the two ends of the two steel cross beams and at the cross connection parts of the two steel cross beams respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321574945.5U CN220136178U (en) | 2023-06-20 | 2023-06-20 | Simple safety protection device suitable for rock foundation pit blasting excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321574945.5U CN220136178U (en) | 2023-06-20 | 2023-06-20 | Simple safety protection device suitable for rock foundation pit blasting excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220136178U true CN220136178U (en) | 2023-12-05 |
Family
ID=88947563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321574945.5U Active CN220136178U (en) | 2023-06-20 | 2023-06-20 | Simple safety protection device suitable for rock foundation pit blasting excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220136178U (en) |
-
2023
- 2023-06-20 CN CN202321574945.5U patent/CN220136178U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105672517A (en) | Swing self-reset and self-standing type high-rise structure | |
| CN108360560B (en) | Fabricated steel box shed tunnel suitable for emergency rescue and disaster relief and construction method | |
| CN109183640A (en) | The shed hole structure and its construction method of a kind of antidetonation and anti-mud-rock flow and falling rocks | |
| CN209991886U (en) | Blasting construction well head protector | |
| CN220136178U (en) | Simple safety protection device suitable for rock foundation pit blasting excavation | |
| CN109844235A (en) | A kind of earthquake-resistant building structure and anti-shock methods | |
| CN110761339B (en) | High-rise building damping structure and construction method thereof | |
| CN211571742U (en) | Passive energy dissipation protective structure of side slope | |
| CN110593328A (en) | Pile foundation reinforcing method for building engineering construction | |
| CN114525808B (en) | Deep foundation pit edge gantry crane ground beam construction method | |
| CN214842823U (en) | Collaborative device for intercepting blasting flyrock and slowing down vibration | |
| CN211421192U (en) | Earthquake isolation device for foundation construction for building | |
| CN210482099U (en) | Light rockfall interception structure for high and steep slope | |
| CN207878306U (en) | A kind of assembled steel case hangar tunnel device suitable for rescue and relief work | |
| CN208701692U (en) | The suspension device of interim deep basal pit for stake support structure | |
| RO112433B1 (en) | Resistance structures vibrations reducing process and device | |
| CN214832939U (en) | High antidetonation type building foundation | |
| JP4811836B1 (en) | Manhole levitation prevention structure and levitation prevention method | |
| CN214883741U (en) | Safety protection device for secondary excavation of existing side slope | |
| CN215803377U (en) | Entrance to a cave covers device for civil engineering | |
| CN105544596B (en) | Assembling type open caisson protective casing for deep foundation pit field tower crane foundation construction | |
| CN210659389U (en) | Foundation pit safety stair | |
| CN217379960U (en) | House shock insulation structure based on SBS pitch-two steel mesh sliding surface that twist pair | |
| CN219037783U (en) | Flying stone protector in pile well blasting process | |
| CN109098205A (en) | People's air defense underpass and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |