CN105952460A - Non-blasting construction method of hard-rock tunnel in city - Google Patents
Non-blasting construction method of hard-rock tunnel in city Download PDFInfo
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- CN105952460A CN105952460A CN201610348519.8A CN201610348519A CN105952460A CN 105952460 A CN105952460 A CN 105952460A CN 201610348519 A CN201610348519 A CN 201610348519A CN 105952460 A CN105952460 A CN 105952460A
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- Prior art keywords
- chain saw
- face
- tunnel
- construction method
- cutting knife
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
- E21D9/10—Making by using boring or cutting machines
Abstract
The invention discloses a non-blasting construction method of a hard-rock tunnel in a city. The method comprises following steps: step 1, cutting an outer shell grove along the tunnel excavation contour in a horizontal direction with a chain saw cutter in order to form a continuously-enclosed free face; step 2, utilizing the chain saw cutter to inwardly cut the cutting groove in a horizontal direction according to the set trajectory on the tunnel face and dividing the tunnel face into multiple small blocks; step 3, utilizing a crush head to crush and remove fragmented rocks on the tunnel face. The method of utilizing the chain saw cutter and the crushing head is taken for mechanically excavation. Therefore, construction speed is quickened and input in tunneling cost and equipment is reduced. In the complex situation in the city, the construction method is applied to the hard-rock tunnel so that safety, reliably and efficiency are obtained; no influence is caused to the ambient environment and residents living in the ground; easy control of overbreak of the tunnel around is obtained; and the construction method is convenient and easy to promote.
Description
Technical field
The present invention relates to technical field of tunnel construction, it is particularly applicable to the non-quick-fried construction of urban hard rock tunnel.
Background technology
In recent years, accelerating along with country's urbanization paces, domestic big and medium-sized cities subway, highway engineering are just starting the upsurge in construction of a new round.Under the complex environment of city, newly built tunnels is in locations such as passing through existing road, pipeline, buildings or structures more, in view of blast working on earth's surface resident, the impact of buildings or structures, for guaranteeing tunnel perimeter Environmental security and social stability, quick-fried construction becomes for the construction method of non-choosing.
Quick-fried construction non-for hard rock tunnel, currently mainly there are full face tunnel boring machine (TBM) method, cantilever excavator method, milling digging machine method, split the law, hydraulic impact hammer method, static crushing method etc., wherein the equipment investment of TBM method is bigger, the most economical for short distance tunnel, it is the most relatively low that remaining several method is applied to work efficiency in the hard rock tunnel that Surrounding Rock Strength is bigger.
Summary of the invention
It is desirable to provide a kind of non-quick-fried construction method being exclusively used in urban hard rock tunnel, it is made to be applicable to pass through the construction of the urban hard rock tunnel of the complex ground such as existing road, pipeline, buildings or structures, significantly improve non-quick-fried construction efficiency, reduce equipment investment cost.
To this end, the technical solution adopted in the present invention is: a kind of non-quick-fried construction method of urban hard rock tunnel, comprise the following steps:
Step one, tunnel excavation contour line along design cut out outer contour grooving with chain saw cutting knife in the horizontal direction, form the free face closed continuously；
Step 2, on inherent face, in the horizontal direction carry out grooving segmentation by the track set from excavation contour line with chain saw cutting knife, face is divided into multiple fritter；
Step 3, the rock divided face with crushing head crush further and remove.
Preferred as such scheme, in described step 2, during the segmentation of chain saw cutting knife grooving, is divided into face interlaced netted free face, can further improve effect.
For preferably implementing the invention, in described step one, step 2, the notch width of chain saw cutting knife is 10～20cm, and the degree of depth determines according to excavation drilling depth.
Additionally, described chain saw cutting knife, crushing head use hydraulic-driven, intelligent measuring instrument is fixed in the walking mechanism of chain saw cutting knife, excavation contour line surveying and locating is carried out by the way of resection, grooving circuit and track is controlled in real time by automatic technology, thus while meeting required precision, save manual measurement required time, improve effect further.
Beneficial effects of the present invention: the mode using chain saw cutting knife to combine crushing head carries out mechanical equivalent of light excavation, is greatly accelerated construction speed, reduces excavation cost and equipment investment cost；Hard rock tunnel under the complex environment of city is implemented this engineering method, safe and reliable, economic and practical, surrounding enviroment and earth's surface resident will not be impacted, be more prone to tunnel perimeter out break control；The easy construction of this engineering method, and easy to spread.
Accompanying drawing explanation
Fig. 1 is the design sketch after step one completes in the present invention.
Fig. 2 is the design sketch after step 2 completes in the present invention.
Detailed description of the invention
A kind of non-quick-fried construction method of urban hard rock tunnel, including the requisite core procedure of three below:
Step one, tunnel excavation contour line along design cut out outer contour grooving with chain saw cutting knife in the horizontal direction, form the free face closed continuously, as shown in Figure 1.
Step 2, on inherent face, in the horizontal direction carry out grooving segmentation by the track set from excavation contour line with chain saw cutting knife, face is divided into multiple fritter, as in figure 2 it is shown, be convenient for the broken of next step.
Step 3, the rock divided face with crushing head crush further and remove.
Preferably, in described step 2, during the segmentation of chain saw cutting knife grooving, face being divided into interlaced netted free face, crushing effect is more preferable；Other irregular some pieces can also be divided into.
It addition, in described step one, step 2, the notch width of chain saw cutting knife is 10～20cm, the degree of depth determines according to excavation drilling depth.Intelligent measuring instrument, preferably with hydraulic-driven, is fixed in the walking mechanism of chain saw cutting knife by described chain saw cutting knife, crushing head, carries out excavation contour line surveying and locating by the way of resection, is controlled grooving circuit and track in real time by automatic technology.
For preferably implementing the invention, determine cutting route and track according to the feature of the aspects such as Rock Joints Surrounding growth, crack, layer reason, and then face is carried out grooving segmentation, work efficiency can be further speeded up and reduce the damage to chain saw cutting knife.
Claims (4)
1. the non-quick-fried construction method of urban hard rock tunnel, it is characterised in that comprise the following steps:
Step one, along design tunnel excavation contour line cut out foreign steamer with chain saw cutting knife in the horizontal direction
Profile grooving, forms the free face closed continuously；
Step 2, use chain saw cutting knife press the track set in level from excavation contour line on inherent face
Direction carries out grooving segmentation, and face is divided into multiple fritter；
Step 3, the rock divided face with crushing head crush further and remove.
2. according to the non-quick-fried construction method of the urban hard rock tunnel described in claim 1, it is characterised in that: institute
State in step 2, during the segmentation of chain saw cutting knife grooving, face is divided into interlaced netted free face.
3. according to the non-quick-fried construction method of the urban hard rock tunnel described in claim 1, it is characterised in that: institute
Stating in step one, step 2, the notch width of chain saw cutting knife is 10～20cm, and the degree of depth is according to excavation drilling depth
Determine.
4. according to the non-quick-fried construction method of the urban hard rock tunnel described in claim 1, it is characterised in that: institute
State chain saw cutting knife, crushing head uses hydraulic-driven, and intelligent measuring instrument is fixed on the row of chain saw cutting knife
Walk in mechanism, by the way of resection, carry out excavation contour line surveying and locating, pass through automatic technology
Control grooving circuit and track in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348519.8A CN105952460A (en) | 2016-05-24 | 2016-05-24 | Non-blasting construction method of hard-rock tunnel in city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348519.8A CN105952460A (en) | 2016-05-24 | 2016-05-24 | Non-blasting construction method of hard-rock tunnel in city |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105952460A true CN105952460A (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610348519.8A Pending CN105952460A (en) | 2016-05-24 | 2016-05-24 | Non-blasting construction method of hard-rock tunnel in city |
Country Status (1)
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| CN (1) | CN105952460A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740418A (en) * | 2017-09-20 | 2018-02-27 | 中建四局第六建筑工程有限公司 | A kind of construction method excavated for rock vertical wall of deep foundation pit |
| CN108071401A (en) * | 2016-11-10 | 2018-05-25 | 上海宝冶集团有限公司 | The construction method of karst area subway tunnel |
| CN108266192A (en) * | 2018-02-09 | 2018-07-10 | 中交隧道工程局有限公司 | A kind of flysch formation tunnel excavation construction method |
| CN109973089A (en) * | 2019-03-19 | 2019-07-05 | 宜昌鄂奥图机械制造有限公司 | A kind of mining technique |
| CN110439586A (en) * | 2019-08-22 | 2019-11-12 | 四川达竹煤电(集团)有限责任公司金刚煤矿 | Non- blasting type mine laneway Water Cutting driving method |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN112145192A (en) * | 2020-08-17 | 2020-12-29 | 中铁工程服务有限公司 | Soft rock tunnel boring machine and construction method thereof |
| CN112360478A (en) * | 2020-11-27 | 2021-02-12 | 中铁工程装备集团有限公司 | Special-shaped hard rock tunneling machine for sawing and shearing composite rock breaking and construction method |
| CN113107497A (en) * | 2021-04-14 | 2021-07-13 | 中铁工程服务有限公司 | Hard rock tunnel tunneling construction method |
| CN113107513A (en) * | 2021-04-15 | 2021-07-13 | 中铁工程装备集团有限公司 | Tunnel construction method for breaking rock by using high-pressure water |
| CN113279772A (en) * | 2021-06-09 | 2021-08-20 | 中铁工程装备集团有限公司 | Rock tunnel tunneling method and tunneling machine |
| CN113356847A (en) * | 2021-07-14 | 2021-09-07 | 中铁工程装备集团有限公司 | Rock swelling and breaking equipment and rock swelling and breaking construction method for tunnel |
| CN113431595A (en) * | 2021-07-02 | 2021-09-24 | 中铁高新工业股份有限公司 | Construction method of non-blasting chain saw cutting machine |
| CN115787768A (en) * | 2022-12-16 | 2023-03-14 | 中建海峡建设发展有限公司 | Method for excavating harder rock in ultra-narrow and ultra-deep foundation pit |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071401A (en) * | 2016-11-10 | 2018-05-25 | 上海宝冶集团有限公司 | The construction method of karst area subway tunnel |
| CN107740418A (en) * | 2017-09-20 | 2018-02-27 | 中建四局第六建筑工程有限公司 | A kind of construction method excavated for rock vertical wall of deep foundation pit |
| CN108266192A (en) * | 2018-02-09 | 2018-07-10 | 中交隧道工程局有限公司 | A kind of flysch formation tunnel excavation construction method |
| CN108266192B (en) * | 2018-02-09 | 2019-10-18 | 中交隧道工程局有限公司 | A kind of flysch formation tunnel excavation construction method |
| CN109973089A (en) * | 2019-03-19 | 2019-07-05 | 宜昌鄂奥图机械制造有限公司 | A kind of mining technique |
| CN110439586A (en) * | 2019-08-22 | 2019-11-12 | 四川达竹煤电(集团)有限责任公司金刚煤矿 | Non- blasting type mine laneway Water Cutting driving method |
| CN111236959B (en) * | 2020-03-20 | 2021-08-13 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN112145192A (en) * | 2020-08-17 | 2020-12-29 | 中铁工程服务有限公司 | Soft rock tunnel boring machine and construction method thereof |
| CN112360478A (en) * | 2020-11-27 | 2021-02-12 | 中铁工程装备集团有限公司 | Special-shaped hard rock tunneling machine for sawing and shearing composite rock breaking and construction method |
| CN112360478B (en) * | 2020-11-27 | 2022-06-14 | 中铁工程装备集团有限公司 | Special-shaped hard rock tunneling machine for sawing and shearing combined rock breaking and construction method |
| CN113107497A (en) * | 2021-04-14 | 2021-07-13 | 中铁工程服务有限公司 | Hard rock tunnel tunneling construction method |
| CN113107497B (en) * | 2021-04-14 | 2022-07-29 | 中铁工程服务有限公司 | Hard rock tunnel tunneling construction method |
| CN113107513A (en) * | 2021-04-15 | 2021-07-13 | 中铁工程装备集团有限公司 | Tunnel construction method for breaking rock by using high-pressure water |
| CN113279772A (en) * | 2021-06-09 | 2021-08-20 | 中铁工程装备集团有限公司 | Rock tunnel tunneling method and tunneling machine |
| CN113431595A (en) * | 2021-07-02 | 2021-09-24 | 中铁高新工业股份有限公司 | Construction method of non-blasting chain saw cutting machine |
| CN113431595B (en) * | 2021-07-02 | 2022-08-23 | 中铁高新工业股份有限公司 | Construction method of non-blasting chain saw cutting machine |
| CN113356847A (en) * | 2021-07-14 | 2021-09-07 | 中铁工程装备集团有限公司 | Rock swelling and breaking equipment and rock swelling and breaking construction method for tunnel |
| CN115787768A (en) * | 2022-12-16 | 2023-03-14 | 中建海峡建设发展有限公司 | Method for excavating harder rock in ultra-narrow and ultra-deep foundation pit |
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Application publication date: 20160921 |