CN109441454A - A kind of construction method of underground lonestone reception room - Google Patents
A kind of construction method of underground lonestone reception room Download PDFInfo
- Publication number
- CN109441454A CN109441454A CN201811054097.9A CN201811054097A CN109441454A CN 109441454 A CN109441454 A CN 109441454A CN 201811054097 A CN201811054097 A CN 201811054097A CN 109441454 A CN109441454 A CN 109441454A
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- Prior art keywords
- reception room
- boulder
- hole
- construction
- spray
- 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.)
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 239000002689 soil Substances 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 230000010412 perfusion Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 238000005422 blasting Methods 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 3
- 230000005641 tunneling Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 241000234282 Allium Species 0.000 description 2
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of construction methods of underground lonestone reception room, include the following steps, determine injection hole site, drilling, steel sleeve is built into hole, and pvc pipe is built into steel sleeve, before implementing high-pressure water jet whirl spraying cutting soil, after steel sleeve is taken out, use high-pressure water jet whirl spraying cutting soil, gas-lift slag discharging and the reception room that the non-condensable grouting liquid construction of high density is perfused, it starts shield machine and boulder pushing tow is fallen into reception room, easy construction, stability is strong, it is not easy to collapse, it has been effectively ensured and boulder pushing tow is fallen into reception room under shield machine thrusting action, boulder is excluded outside the section of shield tunnel driving, enable the smooth tunneling construction of shield machine.With drillhole blasting, punching is broken, core-drilling, compared with the processing boulder method abolished etc. that manually digs a well, can save a large amount of human and material resources, financial resources and the duration for handling boulder, economic benefit and social benefit are significant.
Description
Technical field
The present invention relates to the processing methods of underground obstacle, more particularly to a kind of underground lonestone of the Tunnel Engineering of shield
The construction method of reception room.
Background technique
Construction of underground tunnel is carried out using shield machine, has that high degree of automation, speed of application be fast, high-quality, safety
It is high, the advantages that, be applied more and more widely.
However, can usually encounter boulder (the spherical wind of granite when granite area carries out constructing tunnel using shield machine
Compound) cause shield machine, driving difficulty can not normal construction.
Granite onion weathering object is a kind of common weathering phenomenon, is in residual soil and weathered rock formation because each by mineral
Anisotropy arrangement and fractured zones influence the Remained mass of the weathering to be formed unevenness.Due to weathering ball surrounding rock mass and onion weathering rock
There are larger gaps for body intensity itself, often there is the geological phenomenon of soft or hard unevenness.Here, shield machine can not steadily be dug
Into easily causing tool damage, even result in cutterhead deformation, entire shield machine is caused to paralyse.
Currently, in granitic formation shield tunnel tunneling process, encounter boulder frequently with drillhole blasting, punching it is broken,
Core-drilling, manually dig a well the processing method abolished etc., these methods all have that the construction period is long, processing cost to some extent
The deficiencies of high, shield machine easily damages.
Summary of the invention
The purpose of the present invention is to provide a kind of construction method of underground lonestone reception room, non-by perfusion high density
The reception room that grouting liquid is built is solidified, shield machine is started by boulder pushing tow and falls into reception room, easy construction, stability are strong, are not easy
It collapses, be effectively ensured the storage of the underground obstacle boulder under shield machine thrusting action.
The solution that the present invention solves its technical problem is: a kind of construction method of underground lonestone reception room, including with
Lower step,
1) according to the size and location of boulder, the position of spray-hole is determined；
2) it carries out spray-hole construction and reaches predetermined depth, steel sleeve is inserted in spray-hole, and be built into one in steel sleeve
Root pvc pipe；
3) before carrying out the construction of high-pressure water jet whirl spraying cutting soil to a spray-hole, the steel sleeve in the hole location is extracted,
After being placed in high-pressure injection pipe again in pvc pipe, implement high-pressure water jet whirl spraying cutting soil；
4) while using high-pressure water jet whirl spraying cutting soil, and carry out gas-lift slag discharging, to by the position of cutting soil
After high density, non-condensable grouting liquid is perfused, accepting hole finally is formed in the bottom of spray-hole；
5) after the completion of the construction of the spray-hole of all layings, reception room is formed after each accepting hole connection, starting shield machine will
Boulder pushing tow falls into reception room.
As a further improvement of the above technical scheme, the pvc pipe is thin-wall tube.
As a further improvement of the above technical scheme, the density of the grouting liquid is 1.6~2.0g/cm3。
As a further improvement of the above technical scheme, before the reception room is located at cutter head of shield machine and boulder line
Side, and line is parallel to hole axis.
As a further improvement of the above technical scheme, the reception room cope level design should be higher than that the top of obstacle boulder
Portion's elevation, the design of reception room Bottom Altitude do not hinder shield machine normally to tunnel after obstacle boulder should be made to be included in reception room.
As a further improvement of the above technical scheme, the planar design of the reception room is single round or multiple circles
The group of intersection is round, and single round or the intersection circular inscribed square of group, side length are greater than the maximum point-to-point transmission of boulder
Away from size.
The beneficial effects of the present invention are: the present invention uses high-pressure water jet whirl spraying cutting soil, gas-lift slag discharging and perfusion
The reception room that the non-condensable grouting liquid of high density is built, easy construction, stability are strong, are not easy to collapse, be effectively ensured in shield
Boulder pushing tow is fallen into reception room under machine thrusting action, boulder is excluded outside the section of shield tunnel driving, obtains shield machine
With smooth tunneling construction.With drillhole blasting, punching is broken, core-drilling, compared with the processing boulder method abolished etc. that manually digs a well,
A large amount of human and material resources, financial resources and the duration for handling boulder can be saved, economic benefit and social benefit are significant.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Schematic diagram when Fig. 1 is present invention construction；
Fig. 2 be in Fig. 1 A-A to cross-sectional view；
Fig. 3 is the partial enlarged view of spray-hole in the present invention；
Fig. 4 is in the present invention by the schematic diagram of boulder push-in receiving room.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text
All connection/connection relationships not singly refer to that component directly connects, and referring to can be added deduct according to specific implementation situation by adding
Few couple auxiliary, Lai Zucheng more preferably coupling structure.
A kind of referring to Fig.1~Fig. 4, construction method of underground lonestone reception room, includes the following steps,
1, according to the position of the size of explored boulder 2, the locating underground space, reception room 3 is designed, determines spray-hole 4
Position；
2, the design of reception room 3 is by boulder 2, positioned at the front of cutter head of shield machine and 2 line of boulder, cutter head of shield machine and orphan
2 line of stone is parallel to shield machine driving axis；
3, high density, grouting liquid non-condensable, uplift pressure is strong are prepared, the density of the grouting liquid is 1.6-2.0g/cm3；
4, it is applied using drilling machine by design spacing and quantity and depth and bores spray-hole 4, and be placed in steel sleeve 6 behind whole hole,
Meanwhile be placed in the pvc pipe 5 of a thin-walled again in steel sleeve 6, pvc pipe 5 with a thickness of 1.5~2.5mm, all drillings are disposable
It completes；
5, before carrying out the construction of high-pressure water jet whirl spraying cutting soil, the steel sleeve 6 for the hole location that will first construct is extracted, in PVC
High-pressure injection pipe is placed in pipe 5 again, implements the soil body of cutting periphery while high-pressure rotary-spray cutting pvc pipe 5；
6, high to being perfused by the position of cutting soil while gas-lift slag discharging using high-pressure water jet whirl spraying cutting soil
Density, grouting liquid non-condensable, filling uplift pressure is strong form accepting hole in the bottom of spray-hole 4；
7, by the promotion speed of design requirement control injection pipe, the discharge rate of aperture dregs is observed, judges whether to spray
It penetrates the promotion speed adjustment of pipe or whether carries out multiple spray；
8, after the completion of the spray-hole 4 of all layings is constructed, reception room 3 is formed after each accepting hole connection, starts shield machine 1
2 pushing tow of boulder is fallen into reception room 3, completes the technical treatment of shield machine 1 across boulder 2.
In above-mentioned steps, the soil body, completely decomposed rock are remained, simultaneously to by cutting part using high-pressure water jet whirl spraying cutting
Perfusion high density, non-condensable, uplift pressure is strong, is conducive to single hole or porous while gas-lift slag discharging grouting liquid；Finally in reception room 3
High density, grouting liquid non-condensable, uplift pressure is strong are inside filled, so that entire 2 treatment process reception room 3 of boulder is stablized, is not easy to collapse
It collapses；And can be when storing boulder 2, under the effect of high density slurries uplift pressure, reception room 3 slowly stores boulder 2.
According to the size of boulder 2 and locating underground position, reception room 3 of corresponding size is built.
When boulder 2 is smaller, underground reception room 3 can single hole high-pressure water jet whirl spraying cutting construction；It, can also when boulder 2 is larger
Group's high-pressure water jet whirl spraying cutting is built.When construction, 3 cope level of reception room designs the top that should be slightly above obstacle boulder 2
Elevation；After the Bottom Altitude of reception room 3 falls into reception room 3 with boulder 2, the bottom elevation that cope level is slightly below shield tunnel is
It is quasi-；The planar design of reception room 3 is that the group of single round or multiple round intersections is round, and single round or intersection group is round
Inscribed square, side length slightly larger than obstacle boulder 2 maximum distance between two points size.
It is to be illustrated to better embodiment of the invention, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (6)
1. a kind of construction method of underground lonestone reception room, it is characterised in that: include the following steps,
1) according to the size and location of boulder, the position of spray-hole is determined；
2) it carries out spray-hole construction and reaches predetermined depth, steel sleeve is inserted in spray-hole, and be built into a PVC in steel sleeve
Pipe；
3) before carrying out the construction of high-pressure water jet whirl spraying cutting soil to a spray-hole, the steel sleeve in the hole location is extracted, in PVC
After being placed in high-pressure injection pipe again in pipe, implement high-pressure water jet whirl spraying cutting soil；
4) while using high-pressure water jet whirl spraying cutting soil, and carry out gas-lift slag discharging, to by the position perfusion of cutting soil
After high density, non-condensable grouting liquid, accepting hole finally is formed in the bottom of spray-hole；
5) after the completion of the construction of the spray-hole of all layings, reception room is formed after each accepting hole connection, starts shield machine for boulder
Pushing tow falls into reception room.
2. the construction method of underground lonestone reception room according to claim 1, it is characterised in that: the pvc pipe is thin-walled
Pipe.
3. the construction method of underground lonestone reception room according to claim 1, it is characterised in that: the density of the grouting liquid
For 1.6~2.0g/cm3。
4. the construction method of underground lonestone reception room according to claim 1, it is characterised in that: the reception room is located at shield
The front of structure machine knife disk and boulder line, and line is parallel to hole axis.
5. the construction method of underground lonestone reception room according to claim 1, it is characterised in that: high at the top of the reception room
Journey designs the cope level that should be higher than that obstacle boulder, and the design of reception room Bottom Altitude does not hinder after obstacle boulder should be made to be included in reception room
Shield machine is hindered normally to tunnel.
6. the construction method of underground lonestone reception room according to claim 1, it is characterised in that: the plane of the reception room
The group for being designed as single round or multiple round intersections is round, the single round or intersection circular inscribed square of group,
Side length is greater than the size of the maximum distance between two points of boulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811054097.9A CN109441454A (en) | 2018-09-11 | 2018-09-11 | A kind of construction method of underground lonestone reception room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811054097.9A CN109441454A (en) | 2018-09-11 | 2018-09-11 | A kind of construction method of underground lonestone reception room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109441454A true CN109441454A (en) | 2019-03-08 |
Family
ID=65533228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811054097.9A Pending CN109441454A (en) | 2018-09-11 | 2018-09-11 | A kind of construction method of underground lonestone reception room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708548A (en) * | 2019-03-11 | 2019-05-03 | 厦门爆破工程公司 | Demolition set and blasting method for metro shield boulder and prominent rock blasting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503961A (en) * | 2009-03-11 | 2009-08-12 | 上海隧道工程股份有限公司 | Use method of underground obstacles blasting in shield-tunneling construction |
| CN102518442A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团第二工程有限公司 | Method for processing isolated stone groups in shield excavation karren section |
| CN106524844A (en) * | 2016-09-26 | 2017-03-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | Construction method for shield tunnel boulder exploration and blasting treatment |
| CN106761792A (en) * | 2017-01-20 | 2017-05-31 | 武汉市市政建设集团有限公司 | A kind of full-sleeve full-rotation drill sleeve and shield cutter preceding object thing sweep-out method |
| CN107060800A (en) * | 2017-03-09 | 2017-08-18 | 广东水电二局股份有限公司 | A kind of shield-tunneling construction huge stone handling construction method |
-
2018
- 2018-09-11 CN CN201811054097.9A patent/CN109441454A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503961A (en) * | 2009-03-11 | 2009-08-12 | 上海隧道工程股份有限公司 | Use method of underground obstacles blasting in shield-tunneling construction |
| CN102518442A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团第二工程有限公司 | Method for processing isolated stone groups in shield excavation karren section |
| CN106524844A (en) * | 2016-09-26 | 2017-03-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | Construction method for shield tunnel boulder exploration and blasting treatment |
| CN106761792A (en) * | 2017-01-20 | 2017-05-31 | 武汉市市政建设集团有限公司 | A kind of full-sleeve full-rotation drill sleeve and shield cutter preceding object thing sweep-out method |
| CN107060800A (en) * | 2017-03-09 | 2017-08-18 | 广东水电二局股份有限公司 | A kind of shield-tunneling construction huge stone handling construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708548A (en) * | 2019-03-11 | 2019-05-03 | 厦门爆破工程公司 | Demolition set and blasting method for metro shield boulder and prominent rock blasting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190308 |