CN107882044A - One kind exempts from framed bent high side slope method - Google Patents
One kind exempts from framed bent high side slope method Download PDFInfo
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- CN107882044A CN107882044A CN201711005822.9A CN201711005822A CN107882044A CN 107882044 A CN107882044 A CN 107882044A CN 201711005822 A CN201711005822 A CN 201711005822A CN 107882044 A CN107882044 A CN 107882044A
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- hydraulic drill
- slope
- side slope
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
One kind exempts from framed bent high side slope method, comprises the following steps：1）Side slope higher slice excavation section by section is carried out using backacter；2）In the digging process of backacter progress construction section, the first hydraulic drill rig completes the blast hole bore operation for the presplitting completion section that section carries out construction completion section lower floor simultaneously constructing；3）For backacter during construction section slope excavating is carried out, the second hydraulic drill rig carries out osculum bore operation in construction section in excavation slope；4）After first hydraulic drill rig completes the blast hole bore operation that section is completed in presplitting, it is transferred to construction section and carries out supporting hole drilling operation.Using said structure, the progress of slope retaining operation can be greatly promoted, is the setting that support anchor rod can be achieved without erected support, greatly improves slope construction efficiency, ensured the stability of side slope.
Description
Technical field
The present invention relates to slope treatment method field, particularly one kind to exempt from framed bent high side slope method.
Background technology
During slope treatment, the needs that are drilled with of the bolthole in side slope are carried out after completing framed bent and setting up operation,
Because slope construction cycle stretch-out can be caused, while slope retaining operation does not catch up with slope excavating progress, after causing slope excavating
Exposed overlong time, side slope weathering is caused, influence side slope resistance to overturning.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and exempt from framed bent high side slope method, it can be ensured that side slope branch
The safety progress of operation is protected, is the setting that support anchor rod can be achieved without erected support, greatly improves slope construction efficiency, protect
The stability of side slope is hindered.
In order to solve the above technical problems, the technical solution adopted in the present invention is：One kind exempts from framed bent high side slope method,
Including the first hydraulic drill rig, backacter and the second hydraulic drill rig, segment blast excavation slope, and utilize the first hydraulic drill rig
It is drilled with blast hole and branch guard aperture simultaneously.
It is further comprising the steps of in preferable scheme：
1）Side slope higher slice excavation section by section is carried out using backacter；
2）In the digging process that backacter carries out construction section, the first hydraulic drill rig is completed section in construction and constructed simultaneously
The blast hole bore operation of section is completed in the presplitting for completing section lower floor；
3）Backacter is during construction section slope excavating is carried out, the second hydraulic drill rig excavation slope in construction section
Upper progress osculum bore operation；
4）After first hydraulic drill rig completes the blast hole bore operation that section is completed in presplitting, it is transferred to construction section and carries out supporting hole drilling work
Industry.
In preferable scheme, the first described hydraulic drill rig uses 742 type hydraulic drill rigs, the first hydraulic drill rig bore diameter
For φ 90, the second described hydraulic drill rig bore diameter is φ 75.
In preferable scheme, described backacter carries out backhoe during slope excavating, to caused rock ballast and turned over
Slag operation.
In preferable scheme, described slope construction section section is stepped, and each layer of construction section is divided to two bench to excavate,
Upper bench and lower rise of flight are respectively 3.75m.
In preferable scheme, after the first described hydraulic drill rig completes the supporting hole drilling operation of construction, in branch guard aperture
Anchor pole is set.
One kind provided by the present invention exempts from framed bent high side slope method, by using said structure, has beneficial below
Effect：
（1）The time expended required for framed bent is set up is eliminated, ensure that supporting operation with excavating the continuity of operation, reduces
The open-assembly time of part is excavated, reduces the influence of slacking Upon Slope Stability；
（2）The installation and dismounting of framed bent are eliminated, improves efficiency of construction, while eliminates the cost input of framed bent.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the edge slope structure schematic diagram under the Construction State of the present invention.
Fig. 2 is the construction section schematic diagram in Fig. 1 of the present invention.
Fig. 3,4 are side slope particle velocity typical law figure of the invention.
Fig. 5,6 are side slope particle velocity typical law figure of the invention.
In figure：Construction completion section 1, presplitting completion section 2, non-construction section 3, the first hydraulic drill rig 4, blast hole 5, construction section 6,
Backacter 7, rock ballast 8, the second hydraulic drill rig 9, osculum 10, branch guard aperture 11, upper bench 601, lower bench 602.
Embodiment
Embodiment 1：
In Fig. 1, one kind exempts from framed bent high side slope method, including the first hydraulic drill rig 4, the hydraulic pressure of backacter 7 and second
Rig 9, segment blast excavation slope, and it is drilled with blast hole 5 and branch guard aperture 11 simultaneously using the first hydraulic drill rig 4.
Embodiment 2：
On the basis of embodiment 1, slope treatment construction is carried out using following steps：
1）Side slope higher slice excavation section by section is carried out using backacter 7；
2）In the digging process that backacter 7 carries out construction section 6, the first hydraulic drill rig 4 is completed section 1 in construction and carried out simultaneously
The bore operation of blast hole 5 of the presplitting completion section 2 of the lower floor of section 1 is completed in construction；
3）During the slope excavating of construction section 6 is carried out, the second hydraulic drill rig 9 has excavated backacter 7 in construction section 6
The bore operation of osculum 10 is carried out in side slope；
4）After first hydraulic drill rig 4 completes the bore operation of blast hole 5 that section 2 is completed in presplitting, it is transferred to construction section 6 and carries out branch guard aperture 11
Bore operation.
Embodiment 3：
On the basis of embodiment 2：
In preferable scheme, the first described hydraulic drill rig 4 uses 742 type hydraulic drill rigs, and the bore diameter of the first hydraulic drill rig 4 is
φ 90, the described bore diameter of the second hydraulic drill rig 9 are φ 75.
In preferable scheme, described backacter 7 carries out backhoe during slope excavating, to caused rock ballast 8
Turn over slag operation.
In preferable scheme, the described section of slope construction section 6 is stepped, and each layer of construction section 6 is divided to two bench to open
Dig, upper bench 601 and lower bench 602 are highly respectively 3.75m.
In preferable scheme, after the first described hydraulic drill rig 4 completes the bore operation of branch guard aperture 11 of construction section 6, propping up
Anchor pole is set in guard aperture 11.
At the same time, during tunnel excavation, take measures strict controlled blasting vibration, is excavated and required according to design,
The control of side slope Particle Vibration Velocity, when carrying out upper strata tunnel excavation, is on the one hand pressed within 22cm/s to access tunnel during explosion
Section size subregion excavates, and first excavates a small pilot tunnel, after forming free face, then is enlarged excavation.On the other hand, prison is passed through
Side slope situation is surveyed, the influence of tunnel blasting side slope is judged, according to the continuous adjusting and optimizing blasting parameter of Monitoring Data, makes it most
It is excellent.
Former edge slope structure and mechanical system are destroyed caused by human activity in high side slope construction, in complete design
Before administration structure, its mechanical system be in constantly change and adjustment during, slope stability is poor, in work progress side slope from
The example of right avalanche is of common occurrence.When containing tunnel group in side slope, tunnel blasting can produce amplification in side slope inside slopes
Effect, further increase the possibility of slope instability.In face of this complex situations, it is necessary to from construction organization and blasting technique means
On controlled, reduce it and interfere, strengthen the stabilization of side slope.
According to the distribution of tunnel group, the progress of reasonable arrangement tunnel and slope excavating, by tunnel group be divided into up and down two layers by
Different periods are excavated, and during slope excavating, lower floor's tunnel of constructing first, utilize the stability resistance explosion earthquake of original side slope
The influence of ripple.The slope excavating starting stage farther out, can weaken shadow of the seismic wave to new excavation slope significantly apart from lower floor's tunnel
Ring.Upper strata tunnel is arranged in below slope excavating to tunnel design line and carried out after the completion of about two steps and supporting.Utilize excavation
And the influence for the new mechanical system resistance attenuation of seismic waves to be formed is completed in supporting.
While construction organization optimization is carried out, blasting parameter is optimized using technological means, reduces explosion earthquake
The influence of ripple side slope, therefore, scientific research group has carried out serial tunnel blasting experiment, result of the test is as follows：
First stage:
Tunnel uses full face tunneling, and observation station is arranged on side slope excavation face recently.Measure side slope particle velocity typical law such as
Fig. 3, shown in 4；
It can be seen from the figure that, blasting vibration side slope have a great influence, the upper limit that Particle Vibration Velocity allows close to design.
Second stage：
According to last stage test result, scientific research group adjustment tunnel excavation mode, it is changed to excavate twice by full face tunneling, for the first time
A 3 × 3m small pilot tunnel is formed, full hole is then digged, Explosive stress wave is discharged by pilot tunnel, while reduces out
Area and number of fragments are dug, reduces resonance effects of the different sections of seismic waves in side slope.The side slope particle velocity that second stage is surveyed
Typical law is as shown in Figure 5,6；
Blasting scheme and blasting parameter after being adjusted it can be seen from test result can significantly improve tunnel blasting side slope
Influence, be advantageous to the stabilization of side slope.
After it is determined that carrying out side slope tunnel excavation using digging mode twice, scientific research group is by adjusting heading blast height
Degree, every grade of side slope pre split onepull is completed, heading blast is completed, gets rid of slag and complete in four times twice, realizes every grade of side slope
Successively decline by 3-5m, then by rational device configuration, each technique of excavation and support is subjected to interspersed combination, completes excavation
The continuous productive process of supporting, the function and value of equipment are maximumlly played.And can be complete in the case where not setting up framed bent
Into domatic all bolthole operations, expense is set up so as to save framed bent, carries out because excavation and support operation is interspersed, not only accelerates
Whole slope construction progress, it can also be ensured that slope retaining follows up slope excavating completely, reduces excavation slope exposed time, drop
Low rate of decay, so as to ensure slope stability.
Claims (6)
1. one kind exempts from framed bent high side slope method, including the first hydraulic drill rig（4）, backacter（7）With the second hydraulic drill
Machine（9）, it is characterized in that：Segment blast excavation slope, and utilize the first hydraulic drill rig（4）It is drilled with blast hole simultaneously（5）And supporting
Hole（11）.
2. one kind according to claim 1 exempts from framed bent high side slope method, it is characterised in that specifically includes following step
Suddenly：
1）Utilize backacter（7）Carry out side slope higher slice excavation section by section；
2）In backacter（7）Carry out construction section（6）Digging process in, the first hydraulic drill rig（4）Section is completed in construction（1）
Construction is carried out simultaneously completes section（1）Section is completed in the presplitting of lower floor（2）Blast hole（5）Bore operation；
3）Backacter（7）Carrying out construction section（6）During slope excavating, the second hydraulic drill rig（9）In construction section（6）
Osculum is inside carried out in excavation slope（10）Bore operation；
4）First hydraulic drill rig（4）Complete presplitting and complete section（2）Blast hole（5）After bore operation, construction section is transferred to（6）Carry out
Branch guard aperture（11）Bore operation.
3. one kind according to claim 1 exempts from framed bent high side slope method, it is characterised in that：The first described hydraulic drill
Machine（4）Using 742 type hydraulic drill rigs, the first hydraulic drill rig（4）Bore diameter is φ 90, the second described hydraulic drill rig（9）Bore
Bore dia is φ 75.
4. one kind according to claim 2 exempts from framed bent high side slope method, it is characterised in that：Described backacter
（7）During slope excavating, to caused rock ballast（8）Carry out backhoe and turn over slag operation.
5. one kind according to claim 4 exempts from framed bent high side slope method, it is characterised in that：Described slope construction section
（6）Section is stepped, each layer of construction section（6）It is divided to two bench to excavate, upper bench（601）With lower bench（602）Highly divide
Wei not 3.75m.
6. one kind according to claim 2 exempts from framed bent high side slope method, it is characterised in that：The first described hydraulic drill
Machine（4）Complete construction section（6）Branch guard aperture（11）After bore operation, in branch guard aperture（11）Interior setting anchor pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005822.9A CN107882044A (en) | 2017-10-25 | 2017-10-25 | One kind exempts from framed bent high side slope method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005822.9A CN107882044A (en) | 2017-10-25 | 2017-10-25 | One kind exempts from framed bent high side slope method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882044A true CN107882044A (en) | 2018-04-06 |
Family
ID=61782123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711005822.9A Pending CN107882044A (en) | 2017-10-25 | 2017-10-25 | One kind exempts from framed bent high side slope method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723069A (en) * | 2019-01-15 | 2019-05-07 | 中国水利水电建设工程咨询北京有限公司 | The fast supporting foundation construction method of the small excavation of high slope |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110000458A (en) * | 2009-06-26 | 2011-01-03 | 광성지엠(주) | Reinforcement means for soft land and slope reinforcement methode using the same |
| CN105155546A (en) * | 2015-09-23 | 2015-12-16 | 重庆建工市政交通工程有限责任公司 | Construction method for pre-drilling mechanical excavation for stone |
-
2017
- 2017-10-25 CN CN201711005822.9A patent/CN107882044A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110000458A (en) * | 2009-06-26 | 2011-01-03 | 광성지엠(주) | Reinforcement means for soft land and slope reinforcement methode using the same |
| CN105155546A (en) * | 2015-09-23 | 2015-12-16 | 重庆建工市政交通工程有限责任公司 | Construction method for pre-drilling mechanical excavation for stone |
Non-Patent Citations (1)
| Title |
|---|
| 王泽光: "两河口水电站高陡边坡施工关键技术研究", 《技术与市场》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723069A (en) * | 2019-01-15 | 2019-05-07 | 中国水利水电建设工程咨询北京有限公司 | The fast supporting foundation construction method of the small excavation of high slope |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |
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| RJ01 | Rejection of invention patent application after publication |