CN105735331A - Grouting reinforcement construction method for underground engineering - Google Patents
Grouting reinforcement construction method for underground engineering Download PDFInfo
- Publication number
- CN105735331A CN105735331A CN201610160377.2A CN201610160377A CN105735331A CN 105735331 A CN105735331 A CN 105735331A CN 201610160377 A CN201610160377 A CN 201610160377A CN 105735331 A CN105735331 A CN 105735331A
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- sleeve pipe
- grouting
- construction method
- groove
- grouting reinforcement
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a grouting reinforcement construction method for underground engineering. The grouting reinforcement construction method for underground engineering comprises the following steps: forming a groove in a foundation slab, wherein the groove corresponds to a position to be reinforced below the foundation slab; fixedly arranging a sleeve with a switch valve in the groove; opening the switch valve; drilling through the foundation slab by using a drill pipe in the sleeve until a grouting hole is formed in a soil body below the foundation slab; then lifting the drill pipe away from the sleeve and closing the switch valve; connecting an upper port of the sleeve to a grouting machine; opening the switch valve; carrying out grouting reinforcement on the inside of the grouting hole below the sleeve by using the grouting machine; and closing the switch valve after grouting is finished. The grouting reinforcement construction method for the underground engineering has the advantages that the sleeve with the switch valve is fixed on the foundation slab, a method of forming the hole step by step is adopted to prevent abrupt gush of underground water after the foundation slab is drilled through and mud returning during grouting reinforcement, and risks can be controllable.
Description
Technical field
The invention belongs to underground engineering technical field, be specifically related to a kind of underground engineering construction method for grouting reinforcement.
Background technology
Extending to underground gradually with construction work at present, basement is increasingly deeper, and when sole plate absolute altitude is lower than region water level elevation, the following subsoil water of sole plate has certain head, and therefore sole plate will be subject to underground buoyancy of water.
When below sole plate, existence cavity in stratum needs to reinforce, if carrying out disposable perforate on sole plate, the a large amount of Sand of tapping will be caused, great risk is brought to engineering, and when this Sand, foundation soil is carried out grouting and reinforcing, after slip casting to return slurry situation extremely serious.
Summary of the invention
It is an object of the invention to according to above-mentioned the deficiencies in the prior art part, a kind of underground engineering construction method for grouting reinforcement is provided, this construction method for grouting reinforcement is by the sleeve pipe with controlled valve fixing on sole plate, and the method adopting substep pore-forming, to prevent from gushing and returning slurry during grouting and reinforcing drilling the underground Shuitu after sole plate.
The object of the invention realizes being completed by techniques below scheme:
A kind of underground engineering construction method for grouting reinforcement, it is characterized in that described construction method for grouting reinforcement comprises the steps: to offer groove corresponding to solid position to be added below on sole plate, and in described groove, be fixedly installed a sleeve pipe with controlled valve；Open described controlled valve, utilize drilling rod to be drilled by described sole plate in described sleeve pipe until the lower section soil body is formed injected hole；Afterwards by sleeve pipe described in described drilling rod lift-off, and close described controlled valve；The same slip casting machine of upper port making described sleeve pipe connects, and opens described controlled valve, carries out grouting and reinforcing by described slip casting machine, close described controlled valve after slip casting in the described injected hole below described sleeve pipe.
Described depth of groove is less than the thickness of described sole plate.
Described sleeve pipe is fixedly installed in described groove and refers to: described casing shoe is fixed through angle bar and described groove floor and is connected, and cement injection mortar in the space between described sleeve pipe and described groove.
Described controlled valve in described sleeve pipe is positioned at described sole plate top position.
It is an advantage of the invention that, construction method is simple to operation, by the sleeve pipe with controlled valve fixing on sole plate, and the method adopting substep pore-forming, to prevent from gushing and returning slurry during grouting and reinforcing drilling the underground Shuitu after sole plate, it is achieved risk is controlled.
Accompanying drawing explanation
Fig. 1 is grouting and reinforcing Construction Principle schematic diagram in the present invention.
Detailed description of the invention
Inventive feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, in order to the understanding of technical staff of the same trade:
In Fig. 1, figure, labelling 1-13 is respectively as follows: sole plate 1, groove 2, sleeve pipe 3, controlled valve 4, angle bar 5, screw 6, concrete seven, Grouting Pipe 8, injected hole 9, reducer pipe 10, union joint 11, feed pipe for mortar 12, slip casting machine 13.
Embodiment: as shown in Figure 1, in order to overcome in existing basement in grouting and reinforcing process, owing to drilling the deficiency that sole plate causes a large amount of subsoil water to gush, and during grouting and reinforcing, return the deficiency that slurry is serious, present embodiments providing a kind of underground engineering construction method for grouting reinforcement, this construction method for grouting reinforcement comprises the steps:
(1) first, corresponding to treating that a groove 2 with certain depth is offered in the position of grouting and reinforcing below on sole plate 1 in basement, so-called treat that grouting and reinforcing position refers to below sole plate 1 there is cavity situation in soil layer, this groove 2 is stepped in two-part from large to small, hypomere aperture is suitable with sleeve pipe 3 caliber installed afterwards, and epimere diameter macropores is more than sleeve pipe 3 caliber installed afterwards；
It should be noted that groove 2 does not drill sole plate 1, being reserved with certain thickness base plate on sole plate 1, in case subsoil water is gushed in the soil layer of bottom, the degree of depth of offering of groove 2 accounts for the 1/2 3/4 of sole plate 1 thickness；
(2) after, choose a sleeve pipe 3 with controlled valve 4, the lower port of sleeve pipe 3 is inserted the bottom of hypomere aperture in groove 2, but is not passed through sole plate 1；After being inserted into, utilizing angle bar 5 to be connected with fixing between groove 2 by sleeve pipe 3, namely the side plate of angle bar 5 and sleeve pipe 3 sidewall weld are fixed, and another side plate is then screwed by screw 6 with the epimere macropore base plate of groove 2 and is connected；Sleeve pipe 3 top is above the surface of sole plate 1, and controlled valve 4 should be arranged at sleeve pipe 3 internal upper part above the position of sole plate 1 so that it is carried out opening and closing operation by staff；
(3) in order to further sleeve pipe 3 is fixed spacing, concrete perfusion 7 in the space between sleeve pipe 3 outer wall and groove 2；
(4) after the concrete seven of aforementioned perfusion solidifies and reaches some strength, open the controlled valve 4 in sleeve pipe 3, then by a drilling rod deeply to sleeve pipe 3 inner bottom part, and utilize this drilling rod to offer injected hole 9, namely sole plate 1 is drilled until in soil layer below, forming injected hole 9；
(5) after treating injected hole 9 construction, owing to subsoil water has certain head, the subsoil water in the soil layer of lower section will produce prominent emerge in large numbers as, therefore lift up rapidly drilling rod and depart from sleeve pipe 3, and closing switch valve 4 immediately, it is prevented that subsoil water gushes to evagination；
(6) upper port making sleeve pipe 3 is connected with Grouting Pipe 8 by reducer pipe 10, the other end of Grouting Pipe 8 is then connected with feed pipe for mortar 12 by union joint 11, feed pipe for mortar 12 connects slip casting machine 13, wherein, slip casting machine 13 may be disposed at and may also set up in ground in basement, for carrying out slip casing by pressure in injected hole 9；
(7) controlled valve 4 in sleeve pipe 3 is opened, in the injected hole 9 below sleeve pipe 3, slip casing by pressure is carried out by slip casting machine 13, make in cavity that cement mortar is filled into below sole plate 1 in soil layer under pressure or space, thereby through slip casting means strengthening stratum, it is ensured that the safety of basement sole plate 1；After completing grouting and reinforcing, closing switch valve 4, slip casting machine 13 stops carrying out slip casing by pressure.
Claims (4)
1. a underground engineering construction method for grouting reinforcement, it is characterized in that described construction method for grouting reinforcement comprises the steps: to offer groove corresponding to solid position to be added below on sole plate, and in described groove, be fixedly installed a sleeve pipe with controlled valve；Open described controlled valve, utilize drilling rod to be drilled by described sole plate in described sleeve pipe until the lower section soil body is formed injected hole；Afterwards by sleeve pipe described in described drilling rod lift-off, and close described controlled valve；The same slip casting machine of upper port making described sleeve pipe connects, and opens described controlled valve, carries out grouting and reinforcing by described slip casting machine, close described controlled valve after slip casting in the described injected hole below described sleeve pipe.
2. a kind of underground engineering construction method for grouting reinforcement according to claim 1, it is characterised in that described depth of groove is less than the thickness of described sole plate.
3. a kind of underground engineering construction method for grouting reinforcement according to claim 1, it is characterized in that described sleeve pipe is fixedly installed in described groove to refer to: described casing shoe is fixed through angle bar and described groove floor and is connected, and cement injection mortar in the space between described sleeve pipe and described groove.
4. a kind of underground engineering construction method for grouting reinforcement according to claim 1, it is characterised in that the described controlled valve in described sleeve pipe is positioned at described sole plate top position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160377.2A CN105735331B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering construction method for grouting reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160377.2A CN105735331B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering construction method for grouting reinforcement |
Publications (2)
| Publication Number | Publication Date |
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| CN105735331A true CN105735331A (en) | 2016-07-06 |
| CN105735331B CN105735331B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610160377.2A Active CN105735331B (en) | 2016-03-21 | 2016-03-21 | A kind of underground engineering construction method for grouting reinforcement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982486A (en) * | 2021-03-11 | 2021-06-18 | 中国建筑第八工程局有限公司 | Be used for prosthetic interior drilling intubate densification slip casting reinforcing apparatus of piping lane bottom plate cavity |
| CN112982372A (en) * | 2021-03-11 | 2021-06-18 | 中国建筑第八工程局有限公司 | Inner drilling pipe insertion pipe compaction grouting reinforcement method based on pipe gallery bottom plate cavity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06185080A (en) * | 1992-12-17 | 1994-07-05 | San East:Kk | Floor panel for underground structure |
| CN101787718A (en) * | 2010-02-10 | 2010-07-28 | 上海智平基础工程有限公司 | Casing construction method for reinforcing underground building and structure foundation |
| CN103343543A (en) * | 2013-07-09 | 2013-10-09 | 中国一冶集团有限公司 | Foundation pit dewatering well pressure-reduction-type plugging method |
| CN105089551A (en) * | 2014-12-18 | 2015-11-25 | 安徽恒源煤电股份有限公司 | Casing pipe running reinforcing process of grouting hole opening pipe |
| CN105525631A (en) * | 2015-11-20 | 2016-04-27 | 中国建筑第四工程局有限公司 | Leaking stoppage method and structure for treating water bursting holes of bottom plate |
-
2016
- 2016-03-21 CN CN201610160377.2A patent/CN105735331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06185080A (en) * | 1992-12-17 | 1994-07-05 | San East:Kk | Floor panel for underground structure |
| CN101787718A (en) * | 2010-02-10 | 2010-07-28 | 上海智平基础工程有限公司 | Casing construction method for reinforcing underground building and structure foundation |
| CN103343543A (en) * | 2013-07-09 | 2013-10-09 | 中国一冶集团有限公司 | Foundation pit dewatering well pressure-reduction-type plugging method |
| CN105089551A (en) * | 2014-12-18 | 2015-11-25 | 安徽恒源煤电股份有限公司 | Casing pipe running reinforcing process of grouting hole opening pipe |
| CN105525631A (en) * | 2015-11-20 | 2016-04-27 | 中国建筑第四工程局有限公司 | Leaking stoppage method and structure for treating water bursting holes of bottom plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982486A (en) * | 2021-03-11 | 2021-06-18 | 中国建筑第八工程局有限公司 | Be used for prosthetic interior drilling intubate densification slip casting reinforcing apparatus of piping lane bottom plate cavity |
| CN112982372A (en) * | 2021-03-11 | 2021-06-18 | 中国建筑第八工程局有限公司 | Inner drilling pipe insertion pipe compaction grouting reinforcement method based on pipe gallery bottom plate cavity |
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| Publication number | Publication date |
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| CN105735331B (en) | 2018-02-23 |
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