CN104179506B - The treatment process of a kind of shield structure mud lining - Google Patents
The treatment process of a kind of shield structure mud lining Download PDFInfo
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- CN104179506B CN104179506B CN201410368497.2A CN201410368497A CN104179506B CN 104179506 B CN104179506 B CN 104179506B CN 201410368497 A CN201410368497 A CN 201410368497A CN 104179506 B CN104179506 B CN 104179506B
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Abstract
The invention belongs to the technical field that shield structure is safeguarded, it is specifically related to the treatment process of a kind of shield structure mud lining, solve the problem that the treatment process investment of existing shield structure mud lining is very high with risk. Its step is as follows: when discovery shield structure has mud lining phenomenon but is not very serious, brush mud wall of constructing in the position of the front 20-40m of shielded construction in advance. The present invention has following useful effect: applies and brand-new exempts from the unartificial method that opens a position, successfully achieve the construction that shield structure removes mud cake in clay seam construction process, overturn existing solution shield cutter mud cake treatment process completely, the present invention need not open a position and also enter storehouse without the need to personnel, the greatly cost-saving duration, simultaneously safe and reliable, efficiency height.
Description
Technical field
The invention belongs to the technical field that shield structure is safeguarded, it is specifically related to the treatment process of a kind of shield structure mud lining.
Background technology
Shield structure is in clay stratum or powder land floor construction process, and clay particle is very easily attached on cutterhead under hyperbaric environment, bypasses the immediate leadership more thick, cutterhead is caused to be stuck with paste extremely, cutter cannot continue to cut the soil body, and the soil body also cannot enter Tu Cang smoothly, causes Shield Construction Method Used.
The method of process cutterhead mud lining is divided into two kinds substantially at present:
Ground opens a position and abolishes. From ground construction vertical shaft until cutterhead position, then personnel are directly lower to cutterhead position, according to the intensity of mud cake and area, adopt the facility such as pneumatic pick manually to abolish.Band is pressed into storehouse and abolishes. The implementation step of this kind of method is, first penetrate into the cutterhead front soil body with the mud prepared by high pressure method and form mud film, then pressurize in clay bin, form high-pressure space and prevent the front soil body from caving in, then personnel enter shield structure Tu Cang, abolish front mud cake.
Above two kinds of methods all need specially the front tunnel face soil body to be reinforced and processed, and invest very big; Existing method all needs manually to enter soil storehouse scope and manually abolishes mud cake simultaneously, and risk is extremely high. Particularly under rich water geologic condition, measure investment and the risk of existing process mud cake all can be multiplied.
Summary of the invention
The present invention mainly realizes automatically removing mud cake in treatment process for shield structure mud lining, realizes unmanned operation, investment reduction and duration simultaneously, evades personal security risk simultaneously.
The present invention adopts following technical scheme to realize:
1, the treatment process of a kind of shield structure mud lining, it is characterised in that step is as follows:
(1) when discovery shield structure has mud lining phenomenon but is not very serious, brush mud wall of constructing in the position of the front 20-40m of shielded construction in advance, the thickness of brush mud wall is 600-800mm,
(2) specific practice of brush mud wall is, first with continuous wall trench underground machine grooving, the excavation degree of depth is the groove of below shield cutter lower rim 2m; Then configure low strength cement grout, control its intensity at 0.8-1.2MPa; Prepare common fragment of brick as aggregate; It is a construction section according to the 1m degree of depth in groove, first insert the brickbat of the 1m degree of depth, then 2m degree of depth place in priming petock earth slurries to groove, treat that slurries initial set inserts brickbat again to 3m degree of depth place, alternately construct to shield cutter upper limb 2m position successively, after the slurries initial set built for the last time, with banketing, groove being filled and led up and tamp, so far brush mud wall completes;
(3) to be attached have the shield cutter of mud cake to touch brush mud wall after, shield structure is squeezed into dispersion sex vesicle foam or water by foam hole, cutterhead front from cutterhead front, shield driving decrease in velocity is to 1cm/min simultaneously, cutterhead rotating speed is also adjusted to 0.5r/min, and cutterhead alternately rotates clockwise and counterclockwise, so by softening and brickbat and mortar the friction of water and foam, the mud cake on shield cutter is got rid of.
The present invention has following useful effect: applies and brand-new exempts from the unartificial method that opens a position, successfully achieve the construction that shield structure removes mud cake in clay seam construction process, overturn existing solution shield cutter mud cake treatment process completely, the present invention need not open a position and also enter storehouse without the need to personnel, the greatly cost-saving duration, simultaneously safe and reliable, efficiency height, in actual clay process of the test, cutterhead goes mud cake effect good, the sediment improvement comparing employing at present coordinates the method opened a position, every km can save the number of times 5 times of opening a position, direct saving investment about 4,000,000, economic benefit is very considerable. shielded construction for just using in big area solves the mud cake process problem often run into, and promotional value is very big, and realistic meaning is great.
Accompanying drawing explanation
Fig. 1 for arranging brush mud wall schematic diagram in shielded construction front;
Fig. 2 is arrival brush mud wall schematic diagram;
In figure: 1-brush mud wall, 2-shield engine, the tunnel, section of jurisdiction that 3-is assembled, 4-ground.
Embodiment
A treatment process for shield structure mud lining, when finding shield cutter mud lining but arrange brush mud wall in the front of shielded construction in advance when not being very serious, specific practice is as follows:
(1) after finding that shield structure has mud lining phenomenon, at the position construction brush mud wall of the front 20-40m of shielded construction, the thickness of brush mud wall is selected between 600-800mm according to the seriousness of mud lining, as shown in Figure 1.
(2) specific practice of brush mud wall is, first with continuous wall trench underground machine grooving (600-800mm), the excavation degree of depth is below shield cutter lower rim 2m; Then configuring low strength cement grout, its intensity of general control is at 0.8-1.2MPa; Prepare common fragment of brick (240mmx115mmx53mm)) as aggregate; Be a construction section according to 1m in groove, first insert 1m brickbat, then 2m place in priming petock earth slurries to groove, treat that slurries initial set inserts brickbat again to 3m place, successively alternately construction to shield cutter upper limb 2m position. After the slurries initial set built for the last time, with banketing, soil groove being filled and led up and tamp, so far brush mud wall completes.
(3) to be attached have the shield cutter of mud cake to touch after brush mud wall as shown in Figure 2, shield structure is squeezed into dispersion sex vesicle foam or water by foam hole, cutterhead front from cutterhead front, shield driving decrease in velocity is to 1cm/min simultaneously, cutterhead rotating speed is also adjusted to 0.5r/min, and cutterhead alternately rotates clockwise and counterclockwise, so by softening and brickbat and mortar the friction of water and foam, the mud cake on shield cutter is got rid of.
Claims (1)
1. the treatment process of a shield structure mud lining, it is characterised in that step is as follows:
(1) when discovery shield structure has mud lining phenomenon but is not very serious, brush mud wall of constructing in the position of the front 20-40m of shielded construction in advance, the thickness of brush mud wall is 600-800mm,
(2) specific practice of brush mud wall is, first with continuous wall trench underground machine grooving, the excavation degree of depth is the groove of below shield cutter lower rim 2m; Then configure low strength cement grout, control its intensity at 0.8-1.2MPa; Prepare common fragment of brick as aggregate; It is a construction section according to the 1m degree of depth in groove, first insert the brickbat of the 1m degree of depth, then 2m degree of depth place in priming petock earth slurries to groove, treat that slurries initial set inserts brickbat again to 3m degree of depth place, alternately construct to shield cutter upper limb 2m position successively, after the slurries initial set built for the last time, with banketing, groove being filled and led up and tamp, so far brush mud wall completes;
(3) to be attached have the shield cutter of mud cake to touch brush mud wall after, shield structure is squeezed into dispersion sex vesicle foam or water by foam hole, cutterhead front from cutterhead front, shield driving decrease in velocity is to 1cm/min simultaneously, cutterhead rotating speed is also adjusted to 0.5r/min, and cutterhead alternately rotates clockwise and counterclockwise, so by softening and brickbat and mortar the friction of water and foam, the mud cake on shield cutter is got rid of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368497.2A CN104179506B (en) | 2014-07-30 | 2014-07-30 | The treatment process of a kind of shield structure mud lining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368497.2A CN104179506B (en) | 2014-07-30 | 2014-07-30 | The treatment process of a kind of shield structure mud lining |
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| Publication Number | Publication Date |
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| CN104179506A CN104179506A (en) | 2014-12-03 |
| CN104179506B true CN104179506B (en) | 2016-06-01 |
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| CN201410368497.2A Active CN104179506B (en) | 2014-07-30 | 2014-07-30 | The treatment process of a kind of shield structure mud lining |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703826B (en) * | 2017-02-23 | 2018-04-10 | 淮南矿业(集团)有限责任公司 | A kind of control of mining TBM cutterheads knot mud stone cake and method for cleaning |
| CN109113753B (en) * | 2018-09-30 | 2024-08-16 | 中铁工程装备集团有限公司 | Device and method for breaking mud cake of cutterhead |
| CN109139025B (en) * | 2018-10-29 | 2019-11-08 | 中铁工程装备集团有限公司 | A kind of cutter head of shield machine mud cake restructuring bankrupt |
| CN111024902B (en) * | 2019-12-30 | 2022-07-19 | 中铁隧道局集团有限公司 | Experimental device and method for simulating mud cake forming and removing mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440709A (en) * | 2008-12-12 | 2009-05-27 | 天津大学 | Cutter head center dreg stirring device of soil pressure balance shield machine |
| CN102071942A (en) * | 2010-12-02 | 2011-05-25 | 沈阳重型机械集团有限责任公司 | Processing method for protecting excavation place of shield machine from mudlining |
| CN102305083A (en) * | 2011-08-01 | 2012-01-04 | 北京市三一重机有限公司 | Shield machine and anterior shield system thereof |
| CN102392652A (en) * | 2011-07-26 | 2012-03-28 | 广东水电二局股份有限公司 | Method for removing mud cake in soil bin or muddy water chamber of shield machine and shield machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010121399A1 (en) * | 2009-04-24 | 2010-10-28 | 北京国油联合油田技术服务有限公司 | Method and device for treating waste mud |
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2014
- 2014-07-30 CN CN201410368497.2A patent/CN104179506B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440709A (en) * | 2008-12-12 | 2009-05-27 | 天津大学 | Cutter head center dreg stirring device of soil pressure balance shield machine |
| CN102071942A (en) * | 2010-12-02 | 2011-05-25 | 沈阳重型机械集团有限责任公司 | Processing method for protecting excavation place of shield machine from mudlining |
| CN102392652A (en) * | 2011-07-26 | 2012-03-28 | 广东水电二局股份有限公司 | Method for removing mud cake in soil bin or muddy water chamber of shield machine and shield machine |
| CN102305083A (en) * | 2011-08-01 | 2012-01-04 | 北京市三一重机有限公司 | Shield machine and anterior shield system thereof |
Non-Patent Citations (1)
| Title |
|---|
| 泥水平衡盾构机刀盘泥饼形成机理及防治技术;陈乔松等;《长沙铁道学院学报（社会科学版）》;20110630;第12卷(第2期);第214-215页，防治措施部分 * |
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| CN104179506A (en) | 2014-12-03 |
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