CN208518667U - A kind of processing structure of removing obstacles that shield driving chance granite boulder is passively shut down - Google Patents
A kind of processing structure of removing obstacles that shield driving chance granite boulder is passively shut down Download PDFInfo
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- CN208518667U CN208518667U CN201821183322.4U CN201821183322U CN208518667U CN 208518667 U CN208518667 U CN 208518667U CN 201821183322 U CN201821183322 U CN 201821183322U CN 208518667 U CN208518667 U CN 208518667U
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- boulder
- hole
- blast hole
- removing obstacles
- processing structure
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Abstract
The utility model discloses a kind of shield drivings to meet the processing structure of removing obstacles that granite boulder is passively shut down; it is characterized in that the processing structure of removing obstacles includes boulder blast hole and damping clearance hole; the boulder blast hole is set in the boulder region in front of cutter head of shield machine, and the damping clearance hole is in a row-shaped to be arranged and between the cutter head of shield machine and the boulder blast hole.The utility model has the advantages that: the different type boulder encountered in front of cutter head of shield machine can be effectively treated, constructing operation is convenient and efficient, can effectively guarantee duration and the construction safety of worker；The processing structure of removing obstacles can adjust the design of drilling according to the sensibility of surrounding enviroment simultaneously, and the influence to surrounding enviroment is further decreased using the method for " close drilling, weak blast ".
Description
Technical field
The utility model relates to Shield Construction Technique fields, and in particular to a kind of shield driving is met granite boulder and passively stopped
The processing structure of removing obstacles of machine.
Background technique
Main treatment measures of granite boulder when passively shutting down are met in shield driving at present to be blasting procedure and opens a position and carry out people
Work processing.For blasting procedure, since shield machine is passively shut down, cutterhead and boulder are that " zero " distance completely attaches to, and use is general
Blasting procedure inevitably causes different degrees of damage to huge stone handling to cutter head of shield machine；For the method processing that opens a position, it is
Finger opens a position in front of shield machine, is handled using rock splitter the boulder in front of cutter head of shield machine, shield machine is opened
Storehouse risk is higher, is difficult to accomplish that normal pressure opens a position, and with pressure open a position handles that boulder risk is very high, and work of the operator in cabin
The industry period is shorter, handles the poor in timeliness of boulder.
Summary of the invention
The purpose of this utility model is to provide a kind of shield driving chance granite according to above-mentioned the deficiencies in the prior art place
Processing structure that boulder was passively shut down remove obstacles, the processing structure of removing obstacles are arranged boulder blast hole in boulder region and are loaded fried
Medicine is removed obstacles with carrying out explosion, while for shield machine when row's damping clearance hole is arranged so that explosion is isolated in front of cutter head of shield machine
It is damaged caused by cutterhead.
The utility model aim realization is completed by following technical scheme:
A kind of processing structure of removing obstacles that shield driving chance granite boulder is passively shut down, it is characterised in that the processing of removing obstacles
Structure includes boulder blast hole and damping clearance hole, and the boulder blast hole is set to the boulder region in front of cutter head of shield machine
Interior, the damping clearance hole is in a row-shaped to be arranged and between the cutter head of shield machine and the boulder blast hole.
The boulder blast hole is distributed in the boulder region in array-like, the adjacent boulder blast hole it
Between spacing be 0.4-0.8 m.
Explosive is filled in the boulder blast hole, the fill depth range of the explosive is located at depth locating for the boulder
It spends in range.
The row damping clearance hole is parallel to the cutter head of shield machine, the spacing between the adjacent damping clearance hole
For 0.2-0.4m.
The utility model has the advantages that: the different type boulder encountered in front of cutter head of shield machine, construction can be effectively treated
It is easy to operate, it can effectively guarantee duration and the construction safety of worker；The processing structure of removing obstacles can be with simultaneously
According to the sensibility of surrounding enviroment, the design of drilling is adjusted, is further decreased using the method for " close drilling, weak blast " to periphery
The influence of environment.
Detailed description of the invention
Fig. 1 is the processing structure plan view of removing obstacles that shield driving meets when granite boulder is passively shut down in the utility model；
Fig. 2 is boulder blast hole design diagram when boulder is in the utility model with a thickness of 2m or less；
Fig. 3 is boulder blast hole design diagram when boulder is in the utility model with a thickness of 2-3m；
Fig. 4 is boulder blast hole design diagram when boulder is in the utility model with a thickness of 3m or more；
Fig. 5 is blast hole design diagram of the boulder with boulder when Chong Die in the utility model；
Fig. 6 be the utility model in boulder remove obstacles processing after the completion of slip casting schematic diagram.
Specific embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade:
Such as Fig. 1-6, label 1-9 is respectively as follows: shield machine 1, damping clearance hole 2, boulder 3, boulder blast hole 4, delineation in figure
Hole 5, emptying aperture 6, explosive 7, tamper 8, injected hole 9.
Embodiment: as shown in figures 1 to 6, the present embodiment meets what granite boulder was passively shut down more particularly to a kind of shield driving
It removes obstacles processing structure, which mainly includes several boulder blast holes 4 and several damping clearance holes 2, boulder explosion
Hole 4 is arranged in the region at 3 place of boulder, and damping clearance hole 2 is then arranged in front and the boulder blast hole of 1 cutterhead of shield machine
In region between 4, by being applied in combination for boulder blast hole 4 and damping clearance hole 2, guarantee in the feelings that boulder 3 is effectively treated
Under condition, it can be ensured that do not generate damage to the cutterhead of the shield machine 1 of " zero " therewith distance contact.
As shown in Figs. 1-5, boulder blast hole 4 is distributed in the region at 3 place of boulder in array-like, adjacent boulder blast hole
Spacing between 4 is 0.5m, aperture 108mm, for the size dimension and type of different boulders 3, in boulder blast hole 4
There is also differences for 7 filling structure of explosive, specific as follows:
A) as shown in Fig. 2, when boulder 3 is with a thickness of 2m or less, the explosive 7 in boulder blast hole 4 is loaded on 3 institute of boulder
Depth bounds within, and the top of explosive 7 is provided with tamper 8；
B) as shown in figure 3, when boulder 3 is with a thickness of between 2-3m, the explosive 7 in boulder blast hole 4 is divided to two sections of fillings
Within the depth bounds where boulder 3, that is, two sections of explosives 7 are respectively arranged in the upper and lower part in 3 depth bounds of boulder,
And tamper 8 is then filled at middle part, and the rest part in boulder blast hole 4 also fills tamper 8；
C) as shown in figure 4, when the thickness of boulder 3 is greater than 3m, the explosive 7 in boulder blast hole 4 is divided into three sections or more
Multistage carries out interval setting, and the rest part in boulder blast hole 4 then fills obturator 8；
D) as shown in figure 5, when the barrier existing for the front of shield machine 1 is the muti-piece boulder 3 of stacked on top, then in orphan
Multistage explosive 7 is loaded in stone blast hole 4, makes all to be filled with explosive 7 in the depth bounds of every block of boulder 3, to ensure every block of boulder 3
Can be by effective accurate explosion, the rest part in boulder blast hole 4 then fills obturator 8；
It should be noted that the above-mentioned tamper 8 being filled in boulder blast hole 4 can be concrete or other.
As shown in Figure 1, damping clearance hole 2 is arranged in the front of 1 cutterhead of shield machine in a row pattern, pass through damping clearance hole 2
Setting can be effectively isolated decaying explosion caused by impact force for damage caused by cutterhead；The aperture of damping clearance hole 2
For 108mm, the spacing between adjacent damping clearance hole 2 is 0.3m.
As shown in figures 1 to 6, the processing structure of removing obstacles that shield driving chance granite boulder is passively shut down in the present embodiment is applied
Work processing method the following steps are included:
(1) shield machine 1 is passively shut down after granite boulder 3 is met in front during normal driving；
(2) row's damping clearance hole 2 is opened up in front of 1 cutterhead of shield machine, the spacing between adjacent damping clearance hole 2 is
0.3m, aperture 108mm；
(3) in the interval range where boulder 3, boulder blast hole 4, boulder are laid gradually from inside to outside with 0.5m spacing
The aperture of blast hole 4 is 108mm, until leaning out the boundary of boulder 3, i.e., the hole positioned at 3 edge of boulder is delineation hole 5, and
Except boulder 3 is then emptying aperture 6, and the boulder blast hole 4 in 3 range of boulder is distributed in array-like；
(4) after completing being drilled with of boulder blast hole 4, according to the quantity of boulder 3, thickness, in boulder blast hole 4
It fills explosive 7 and tamper 8 is set and blocked；It carries out igniting the explosive 7 in each boulder blast hole 4 later and carries out explosion, from
And the granite boulder 3 in 1 front of blasting elimination shield machine；
(5) after completing to remove obstacles to the explosion of boulder 3, to avoid blast disturbance from causing stratum settlement, to former 3 institute of boulder
Region carry out grouting operation, that is, injected hole 9 is set in former 3 region of boulder, the spacing between adjacent injected hole 9 is
1m carries out stratum consolidation using the interior note dual slurry of the injected hole 9 of mini-valve tube deeply later；
(6) after the completion of completing stratum consolidation and conserving, starting shield machine 1 continues to tunnel.
Claims (4)
1. the processing structure of removing obstacles that granite boulder is passively shut down is met in a kind of shield driving, it is characterised in that the processing knot of removing obstacles
Structure includes boulder blast hole and damping clearance hole, and the boulder blast hole is set in the boulder region in front of cutter head of shield machine,
The damping clearance hole is in a row-shaped to be arranged and between the cutter head of shield machine and the boulder blast hole.
2. the processing structure of removing obstacles that granite boulder is passively shut down is met in a kind of shield driving according to claim 1, special
Sign is that the boulder blast hole is distributed in the boulder region in array-like, between the adjacent boulder blast hole
Spacing be 0.4-0.8 m.
3. the processing structure of removing obstacles that granite boulder is passively shut down is met in a kind of shield driving according to claim 1 or 2,
It is characterized in that being filled with explosive in the boulder blast hole, the fill depth range of the explosive is located at depth locating for the boulder
It spends in range.
4. the processing structure of removing obstacles that granite boulder is passively shut down is met in a kind of shield driving according to claim 1, special
Sign is that the row damping clearance hole is parallel to the cutter head of shield machine, and the spacing between the adjacent damping clearance hole is
0.2-0.4m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821183322.4U CN208518667U (en) | 2018-07-25 | 2018-07-25 | A kind of processing structure of removing obstacles that shield driving chance granite boulder is passively shut down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821183322.4U CN208518667U (en) | 2018-07-25 | 2018-07-25 | A kind of processing structure of removing obstacles that shield driving chance granite boulder is passively shut down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518667U true CN208518667U (en) | 2019-02-19 |
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ID=65332712
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821183322.4U Active CN208518667U (en) | 2018-07-25 | 2018-07-25 | A kind of processing structure of removing obstacles that shield driving chance granite boulder is passively shut down |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513114A (en) * | 2019-08-08 | 2019-11-29 | 中国建筑第四工程局有限公司 | A kind of shield-tunneling construction passes through the construction of high-strength boulder group |
| CN111472778A (en) * | 2020-04-14 | 2020-07-31 | 西安闪光能源科技有限公司 | Pre-splitting method for stones in coal seam |
-
2018
- 2018-07-25 CN CN201821183322.4U patent/CN208518667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513114A (en) * | 2019-08-08 | 2019-11-29 | 中国建筑第四工程局有限公司 | A kind of shield-tunneling construction passes through the construction of high-strength boulder group |
| CN111472778A (en) * | 2020-04-14 | 2020-07-31 | 西安闪光能源科技有限公司 | Pre-splitting method for stones in coal seam |
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