CN106761800A - Support System in Soft Rock Tunnels excavation construction process - Google Patents
Support System in Soft Rock Tunnels excavation construction process Download PDFInfo
- Publication number
- CN106761800A CN106761800A CN201611217070.8A CN201611217070A CN106761800A CN 106761800 A CN106761800 A CN 106761800A CN 201611217070 A CN201611217070 A CN 201611217070A CN 106761800 A CN106761800 A CN 106761800A
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- China
- Prior art keywords
- face
- blade
- excavator
- excavated
- excavation
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/16—Machines for digging other holes in the soil
- E02F5/18—Machines for digging other holes in the soil for horizontal holes or inclined holes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2883—Wear elements for buckets or implements in general
-
- 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
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
Abstract
The present invention relates to a kind of Support System in Soft Rock Tunnels excavation construction process.It is mainly big to country rock disturbance to solve current tunnel excavation, invent the problems such as damaged to preliminary bracing.It is carried out according to the following steps：Contour line point position is being released on the steelframe of face；Slot is welded in excavator-type shovel clamshell excavator both sides, steel plate is inserted in slot as blade, first dig the softer side of country rock, the side blade is installed, excavated in face with blade, another side blade is installed, the side face is excavated；Loading machine carries out excavation operation using blade when face is filled and is cut in face opposite side；When both sides are excavated to complete, carry out face middle part and excavate, operation is excavated in left or right side of the excavator in the middle part of face；Top contour line is repaired using bucket, left and right footing is repaired using the bucket tooth of excavator；Preliminary bracing is carried out, closing cyclization is carried out to country rock；Carry out the excavation construction of subsequent cycle.Advantage is small to country rock disturbance, will not destroy preliminary bracing.
Description
Technical field：
The present invention relates to tunnel excavation construction technology, more particularly to a kind of Support System in Soft Rock Tunnels excavation construction process.
Background technology：
Tunnel excavation method is generally divided into three kinds：Drilling and blasting method is excavated, mechanical equivalent of light excavation, hand excavation, except special geology is using artificial
Excavate or manually with machinery to be combined excavation outer, generally excavated and mechanical equivalent of light excavation using drilling and blasting method.Excavated between drilling and blasting method and machine
Soft rock between tool excavation, is often excavated using drilling and blasting method.The shortcoming of drilling and blasting method is big to the disturbance of country rock, and often because
Explosion influences rock stability, causes disaster；In addition, blast working out break situation is difficult to control to, the duration is not only influenceed but also has caused
Economic waste；There is explosion to produce pernicious gas again, be unfavorable for the improvement of tunnel construction environment.Using mechanical equivalent of light excavation, for dead-soft
Rock mass effect is preferable, not only quick but also safety, but when having exceeded its allowed band to rock mass strength, efficiency of construction is low, influence
The principal element of mechanical efficiency is exactly two aspects of area of length and bucket tooth with scar of bucket bucket tooth.In addition, using bucket
When excavating vault, preliminary bracing that can be good to supporting is damaged.Therefore, a kind of disturbance that can reduce to country rock is studied,
Energy safety, the method for rapid construction, very necessary again.
The content of the invention：
The technical problems to be solved by the invention are to provide one kind can meet Support System in Soft Rock Tunnels excavation construction, be greatly enhanced
Support System in Soft Rock Tunnels excavation construction speed, disturbance when both having reduced excavation to country rock, the weakness that excavation quality is improve again is enclosed
Rock tunnel excavation construction technology.
The object of the present invention is achieved like this：
Support System in Soft Rock Tunnels excavation construction process, is carried out according to the following steps：
First, preparation of construction：
Observation face country rock situation determines first to excavate which side；
2nd, surveying setting-out：
Release contour line point position on the steelframe of face in upper one circulation, and each point position of telling somebody what one's real intentions are super condition of owing a debt of gratitude；
The 3rd, left or right side blade is installed：
In each welding blade slot in excavator-type shovel clamshell excavator both sides, it is inserted in as blade using steel plate and replaces original bucket tooth in slot, is applied
In man-hour, excavated using unilateral blade, first excavating left side or right side, to depend primarily on face left and right sides rock mass soft or hard
Degree, first digs the softer side of country rock, installs the side blade, and such efficiency of construction is very high, can quickly give loading machine dress quarrel wound
Make condition, parallel operations；
4th, blade excavates face left or right side：
A period of time first is excavated in face left or right side using blade, certain quarrel body is produced, is that loading machine dress quarrel creates bar
Part；
The 5th, right or left side blade is installed：
Upper right or left side blade, mobile excavator to the face right side or left side are installed；
6th, blade excavates the face right side or left side：
Loading machine carries out excavation operation using blade when face left or right side fills and is cut on the face right side or left side, at this moment digs
Pick machine and loading machine operation simultaneously；
When excavator is excavated close to left or right side wheel profile, observed, measured and contour line deviation using steel ruler if necessary,
Whether both sides digging distance is identical, and adjusts in time；
7th, blade excavates face middle part：
When the left and right sides is excavated to be basically completed, carry out face middle part and excavate, at this moment both sides free face has been formed, excavator
Operation is excavated in left or right side that will be in the middle part of face, and the body that is cut is placed on the position that can make loading machine parallel operations；
8th, top is repaired using bucket：
Large area quarrel body has been transported to spoil disposal area outside hole, and top contour line is repaired using bucket, now, priority control out break,
Stand bottom observation vault whether out break, there is the collimation error, to borrow excavator and rise to vault, observe concrete condition；
9th, left and right footing is repaired using the bucket tooth of excavator：
After arch finishing is finished, the finishing of left and right footing is carried out；
Tenth, excavation contour line measurement detection, finishing：
Detect excavation contour line using instrument, such as deviation is larger, it is necessary to usage mining machine does up, such as deviation meet specification will
Ask, into next process construction；
11, preliminary bracing is carried out：
Preliminary bracing is carried out, closing cyclization is carried out to country rock；
12, the excavation construction of subsequent cycle is carried out：
When upper one circulation construction is completed, preliminary bracing is completed, and carries out the excavation construction of subsequent cycle.
It is an advantage of the invention that：By the transformation of the way to excavator-type shovel clamshell excavator and left and right alternately excavate, blade reduce with
Contact area between scar, increases pressure.Increase blade lengths, be more easy to go deep into inside country rock, substantially increase operating efficiency.
The angle of blade is adjusted by bucket, destruction of the bucket back to the good steelframe of supporting when can avoid excavating vault with bucket tooth.
This method is particularly suitable for weak surrounding rock excavation construction, and speed of application is fast, reduces resource input, reduces and is constructed into
This, while having prevented that the loss that disaster is brought may occur because of explosion, prevents explosion and produces toxic gas and flue dust, saves big
Type equipment investment, effectively reduces the pollution to environment.
Specific embodiment：
Support System in Soft Rock Tunnels excavation construction process, is carried out according to the following steps：
First, preparation of construction：
Observation face country rock situation determines first to excavate which side；
2nd, surveying setting-out：
Release contour line point position on the steelframe of face in upper one circulation, and each point position of telling somebody what one's real intentions are super condition of owing a debt of gratitude；
3rd, install left（It is right）Side blade：
In each welding blade slot in excavator-type shovel clamshell excavator both sides, it is inserted in as blade by the use of steel plate and replaces original bucket tooth in slot, is applied
In man-hour, excavated using unilateral blade, first excavating left side or right side, to depend primarily on face left and right sides rock mass soft or hard
Degree, first digs the softer side of country rock, installs the side blade, quickly can so be created conditions to loading machine dress quarrel, parallel work
Industry；
4th, blade excavates a face left side（It is right）Side：
It is first left in face using blade（It is right）A period of time is excavated in side, produces certain quarrel body, is that loading machine dress quarrel creates bar
Part；
5th, install right（It is left）Side blade：
Install upper right（It is left）The blade of side, mobile excavator is right to face（It is left）Side；
6th, blade excavates the face right side（It is left）Side：
Loading machine is left in face（It is right）It is right in face using blade during the dress quarrel of side（It is left）Side carries out excavation operation, at this moment digs
Pick machine and loading machine operation simultaneously；
When excavator is excavated close to a left side（It is right）During side wheel profile, observed, measured and contour line deviation using steel ruler if necessary,
Whether both sides digging distance is identical, and adjusts in time；
7th, blade excavates face middle part：
When the left and right sides is excavated to be basically completed, carry out face middle part and excavate, at this moment both sides free face has been formed, excavator
Left side that will be in the middle part of face（It is right）Operation is excavated in side, and the body that is cut is placed on the position that can make loading machine parallel operations；
8th, top is repaired using bucket：
Large area quarrel body has been transported to spoil disposal area outside hole, and top contour line is repaired using bucket, now, priority control out break,
Stand bottom observation vault whether out break, there is the collimation error, to borrow excavator and rise to vault, observe concrete condition；
9th, left and right footing is repaired using the bucket tooth of excavator：
After arch finishing is finished, the finishing of left and right footing is carried out；
Tenth, excavation contour line measurement detection, finishing：
Detect excavation contour line using instrument, such as deviation is larger, it is necessary to usage mining machine does up, such as deviation meet specification will
Ask, into next process construction；
11, preliminary bracing is carried out：
Preliminary bracing is carried out, closing cyclization is carried out to country rock；
12, the excavation construction of subsequent cycle is carried out：
When upper one circulation construction is completed, preliminary bracing is completed, and carries out the excavation construction of subsequent cycle.
Use the technology, it is to avoid backbreaking caused by explosion, reduce resource input, accelerate construction speed, reduce
Construction cost, while having prevented that the loss that disaster is brought may occur because of explosion, saves 4 sets of large scale equipment；Prevent quick-fried
Bankruptcy raw toxic gas and flue dust, reduce the discharge of pernicious gas, decrease waste gas, waste material of equipment generation etc. to ring
The pollution in border, while also a saving substantial amounts of electric power resource；Construction speed rapid growth is realized, duration pressure is slow down, dropped
The low security incident produced by unfavorable geology, achieves good economic and social benefit.
Claims (1)
1. Support System in Soft Rock Tunnels excavation construction process, it is characterized in that：Carry out according to the following steps：
First, preparation of construction：
Observation face country rock situation determines first to excavate which side；
2nd, surveying setting-out：
Release contour line point position on the steelframe of face in upper one circulation, and each point position of telling somebody what one's real intentions are super condition of owing a debt of gratitude；
The 3rd, left or right side blade is installed：
In each welding blade slot in excavator-type shovel clamshell excavator both sides, it is inserted in as blade using steel plate and replaces original bucket tooth in slot, is applied
In man-hour, excavated using unilateral blade, first excavating left side or right side, to depend primarily on face left and right sides rock mass soft or hard
Degree, first digs the softer side of country rock, installs the side blade；
4th, blade excavates face left or right side：
A period of time first is excavated in face left or right side using blade, certain quarrel body is produced, is that loading machine dress quarrel creates bar
Part；
The 5th, right or left side blade is installed：
Upper right or left side blade, mobile excavator to the face right side or left side are installed；
6th, blade excavates the face right side or left side：
Loading machine carries out excavation operation using blade when face left or right side fills and is cut on the face right side or left side, at this moment digs
Pick machine and loading machine operation simultaneously；
When excavator is excavated close to left or right side wheel profile, observed, measured and contour line deviation using steel ruler if necessary,
Whether both sides digging distance is identical, and adjusts in time；
7th, blade excavates face middle part：
When the left and right sides is excavated to be basically completed, carry out face middle part and excavate, at this moment both sides free face has been formed, excavator
Operation is excavated in left or right side that will be in the middle part of face, and the body that is cut is placed on the position that can make loading machine parallel operations；
8th, top is repaired using bucket：
Large area quarrel body has been transported to spoil disposal area outside hole, and top contour line is repaired using bucket, now, priority control out break,
Stand bottom observation vault whether out break, there is the collimation error, to borrow excavator and rise to vault, observe concrete condition；
9th, left and right footing is repaired using the bucket tooth of excavator：
After arch finishing is finished, the finishing of left and right footing is carried out；
Tenth, excavation contour line measurement detection, finishing：
Detect excavation contour line using instrument, such as deviation is larger, it is necessary to usage mining machine does up, such as deviation meet specification will
Ask, into next process construction；
11, preliminary bracing is carried out：
Preliminary bracing is carried out, closing cyclization is carried out to country rock；
12, the excavation construction of subsequent cycle is carried out：
When upper one circulation construction is completed, preliminary bracing is completed, and carries out the excavation construction of subsequent cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217070.8A CN106761800A (en) | 2016-12-26 | 2016-12-26 | Support System in Soft Rock Tunnels excavation construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217070.8A CN106761800A (en) | 2016-12-26 | 2016-12-26 | Support System in Soft Rock Tunnels excavation construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106761800A true CN106761800A (en) | 2017-05-31 |
Family
ID=58925913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611217070.8A Pending CN106761800A (en) | 2016-12-26 | 2016-12-26 | Support System in Soft Rock Tunnels excavation construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761800A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022062A (en) * | 2019-12-06 | 2020-04-17 | 首钢滦南马城矿业有限责任公司 | Construction method for clay layer section of ramp |
| CN111734421A (en) * | 2020-07-09 | 2020-10-02 | 中国铁建重工集团股份有限公司 | Drilling and splitting excavation construction method |
| CN114412495A (en) * | 2022-02-07 | 2022-04-29 | 石家庄铁道大学 | Novel peripheral meticulous excavation in weak surrounding rock tunnel device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270271A (en) * | 1998-03-26 | 1999-10-05 | Shimizu Corp | Tunnel excavation method |
| CN202250096U (en) * | 2011-08-05 | 2012-05-30 | 中铁十局集团西北工程有限公司 | Bucket of tunnel excavator |
| CN103422865A (en) * | 2013-08-16 | 2013-12-04 | 中铁二十一局集团有限公司 | Tunnel excavation plastic cutter and tunnel arc-shaped excavation method for weak surrounding rock section |
| CN105065006A (en) * | 2015-08-26 | 2015-11-18 | 中冶建工集团有限公司 | Bucket and excavator |
| CN205189872U (en) * | 2015-11-18 | 2016-04-27 | 中交一公局厦门工程有限公司 | Instrument of regional cubic metre of earth of machine excavation tunnel steel bow member is dug in cooperation |
-
2016
- 2016-12-26 CN CN201611217070.8A patent/CN106761800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270271A (en) * | 1998-03-26 | 1999-10-05 | Shimizu Corp | Tunnel excavation method |
| CN202250096U (en) * | 2011-08-05 | 2012-05-30 | 中铁十局集团西北工程有限公司 | Bucket of tunnel excavator |
| CN103422865A (en) * | 2013-08-16 | 2013-12-04 | 中铁二十一局集团有限公司 | Tunnel excavation plastic cutter and tunnel arc-shaped excavation method for weak surrounding rock section |
| CN105065006A (en) * | 2015-08-26 | 2015-11-18 | 中冶建工集团有限公司 | Bucket and excavator |
| CN205189872U (en) * | 2015-11-18 | 2016-04-27 | 中交一公局厦门工程有限公司 | Instrument of regional cubic metre of earth of machine excavation tunnel steel bow member is dug in cooperation |
Non-Patent Citations (1)
| Title |
|---|
| 宋延波: "胡麻岭隧道泥岩段改制机具施工技术", 《现代隧道技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022062A (en) * | 2019-12-06 | 2020-04-17 | 首钢滦南马城矿业有限责任公司 | Construction method for clay layer section of ramp |
| CN111022062B (en) * | 2019-12-06 | 2022-09-16 | 首钢滦南马城矿业有限责任公司 | Construction method for clay layer section of ramp |
| CN111734421A (en) * | 2020-07-09 | 2020-10-02 | 中国铁建重工集团股份有限公司 | Drilling and splitting excavation construction method |
| CN111734421B (en) * | 2020-07-09 | 2022-04-05 | 中国铁建重工集团股份有限公司 | Drilling and splitting excavation construction method |
| CN114412495A (en) * | 2022-02-07 | 2022-04-29 | 石家庄铁道大学 | Novel peripheral meticulous excavation in weak surrounding rock tunnel device |
| CN114412495B (en) * | 2022-02-07 | 2022-12-16 | 石家庄铁道大学 | Novel peripheral meticulous excavation of weak country rock tunnel device |
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Application publication date: 20170531 |