CN204000836U - A kind of structure for the ground stabilization of shield end well surrounding building - Google Patents
A kind of structure for the ground stabilization of shield end well surrounding building Download PDFInfo
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- CN204000836U CN204000836U CN201420152511.0U CN201420152511U CN204000836U CN 204000836 U CN204000836 U CN 204000836U CN 201420152511 U CN201420152511 U CN 201420152511U CN 204000836 U CN204000836 U CN 204000836U
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Abstract
The utility model provides a kind of structure for the ground stabilization of shield end well surrounding building, comprises horizontal reinforcing body and vertical reinforcing body; Vertical reinforcing body comprises the formed footing in surrounding position of the first injecting paste material and the rear and vertical injected hole of the first injecting paste material diffusion that are filled in vertical injected hole inside, and vertical injected hole is all arranged on building around; Horizontal reinforcing body comprises that the second injecting paste material and the second injecting paste material that are filled in horizontal grouting hole inside spread afterwards and the formed footing in surrounding position of horizontal grouting hole, and horizontal grouting hole is arranged on the borehole wall of shield end well; Horizontal grouting hole intersects and arranges with vertical injected hole.The utility model overall structure is simplified; The vertical physical efficiency of reinforcing forms good enclosing wall in building surrounding, and cost is low; Horizontal reinforcing physical efficiency is reinforced the structure foundation being got up by enclosing, improves consolidation effect and reliability, and cost is low and stability is high.
Description
Technical field
The utility model relates to tunneling shield field, especially, relates to a kind of structure for the ground stabilization of shield end well surrounding building.
Background technology
For the research of city underground building reinforcement technique, for many years, the relevant government department such as Ministry of Communications all pays much attention to, also some achievements in research have been obtained, particularly foundation underpinning technology and the grouting reinforcement technique of building, still still owe effect near the research of building strengthening subway received well or starting well.
When metro shield starts or arrives, starting well or the side when accepting near building well and being subject to shield structure are worn, wear on side and the impact of abolishing portal, easily occur tilting, and the danger such as cracking, badly influence resident's life security and the normal use of building.Therefore, must improve and start or reliability that received well nearby buildings are reinforced.
At present both at home and abroad the other case history of wearing building in the interval termination of shield structure is more and more, and shortage system and efficient construction thing stratum consolidation structure.
Therefore, invent the structure foundation ruggedized construction that a kind of structure is simplified, cost is low and fastness is good significant.
Utility model content
The structure for the ground stabilization of shield end well surrounding building that the utility model object is to provide a kind of structure to simplify, cost is low and fastness is good, concrete technical scheme is as follows:
For a structure for shield end well surrounding building ground stabilization, comprise horizontal reinforcing body and vertical reinforcing body;
Described vertical reinforcing body comprises that the first injecting paste material and described the first injecting paste material that are filled in vertical injected hole inside spread the formed footing in surrounding position rear and described vertical injected hole; Described vertical injected hole is at least 1, and its distance to the outline of building is 0.4-0.7 rice, and the distance between two described vertical injected holes is the diffusion radius of described the first injecting paste material; Described vertical injected hole bottom lower than the ground of described building 0.8-1.2 rice bottom;
Described horizontal reinforcing body comprises that the second injecting paste material and described the second injecting paste material that are filled in horizontal grouting hole inside spread the formed footing in surrounding position rear and described horizontal grouting hole; Described horizontal grouting hole is at least 1 row who arranges from the bottom to top, and is all arranged on the borehole wall of shield end well, and the distance between two described horizontal grouting holes is the diffusion radius of described the second injecting paste material;
Described horizontal grouting hole and described vertical injected hole intersect setting.
Preferred in above technical scheme, described vertical injected hole is single setting.
Preferred in above technical scheme, described the first injecting paste material is the two slurries of cement-sodium silicate, in the two slurries of preferred described cement-sodium silicate: water/binder ratio is 0.7-0.9: 1, preferably 0.8: 1, the volume ratio of above-mentioned cement paste and water glass is 1: 1, wherein concentration of sodium silicate is 15～20 Baume degrees, preferably 20 Baume degrees.
Preferred in above technical scheme, described horizontal grouting hole is that 5-7 row arranges.
Preferred in above technical scheme, described horizontal grouting hole is that 5 rows arrange.
Preferred in above technical scheme, described the second injecting paste material is cement list slurries.
Preferred in above technical scheme, the least significant end of described horizontal grouting hole is positioned at the region that described vertical injected hole surrounds.
Preferred in above technical scheme, the aperture of described vertical injected hole and described horizontal grouting hole is 130mm.
The utlity model has following beneficial effect:
(1) structure for the ground stabilization of shield end well surrounding building of the present utility model comprises horizontal reinforcing body and vertical reinforcing body, and overall structure is simplified; Vertical reinforcing body comprises the formed footing in surrounding position of the first injecting paste material and the rear and vertical injected hole of the first injecting paste material diffusion that are filled in vertical injected hole inside, vertical injected hole is all arranged on building around, ground below building is fenced up, form enclosing wall, cost is low; Horizontal reinforcing body comprises that the second injecting paste material and the second injecting paste material that are filled in horizontal grouting hole inside spread afterwards and the formed footing in surrounding position of horizontal grouting hole, horizontal grouting hole is arranged on the borehole wall of shield end well, ground to the building being got up by enclosing is reinforced, improve consolidation effect and reliability, cost is low and stability is high, thereby stability while guaranteeing below shield structure passes building, reduces shield-tunneling construction risk; Horizontal reinforcing body intersects and arranges with vertical reinforcing body, the good reliability of reinforcing.
(2) in the utility model, vertical injected hole is single setting, and is all centered around building around, has not only saved material but also can make the good stability of enclosing wall.
(3) in the utility model, the first injecting paste material is the two slurries of cement-sodium silicate, and gel time is short and stagnant water effect is good; In the two slurries of preferred described cement-sodium silicate: water/binder ratio is 0.7-0.9: 1, preferably 0.8: 1, the volume ratio of above-mentioned cement paste and water glass was 1: 1, wherein concentration of sodium silicate is 15～20 Baume degrees, preferably 20 Baume degrees, almost can meet real-life all operating modes, practical.
(4) in the utility model, horizontal grouting hole is that 5-7 row arranges, and is preferably 5 rows, not only attractive in appearance but also can play good consolidation effect; The second injecting paste material is cement list slurries, and raw material easily obtains, and cost is low.
(5) least significant end of horizontal grouting hole described in the utility model is positioned at the region that described vertical injected hole surrounds, and both can save material, can play good fixed effect again.
(6) described in the utility model, the aperture of vertical injected hole and described horizontal grouting hole is 130mm, is convenient to boring.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation in actual use of the structure for the ground stabilization of shield end well surrounding building of the utility model preferred embodiment 1;
Fig. 2 is the top view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can limit and cover according to claim is implemented.
Embodiment 1:
Take between two solitary buildings is highway, and under Xu Cong highway and two buildings, setting up underground passage is that example describes the technical solution of the utility model.
Respectively there is a solitary building 1 on the both sides of highway 5, under highway 5 and two buildings 1, set up underground passage 3, distance between two boundary lines 4 of underground passage 3 is greater than the width of highway 5, its structure for the ground stabilization of shield end well surrounding building refers to shown in Fig. 1 and Fig. 2: comprise horizontal reinforcing body 11 and vertical reinforcing body 12, overall structure is simplified.
Described vertical reinforcing body 12 comprises that the first injecting paste material and described the first injecting paste material that are filled in vertical injected hole 121 inside spread the formed footing in surrounding position rear and described vertical injected hole 121, the quantity of described vertical injected hole 121 is at least 1, and its single setting of surrounding around building 1, distance to the outline of building 1 is 0.4-0.7 rice, described vertical injected hole 121 bottom lower than the ground 101 of building 1 0.8-1.2 rice bottom, distance between two described vertical injected holes 121 is the diffusion radius of described the first injecting paste material, by vertical reinforcing body 12, the ground below building is fenced up, form enclosing wall.Wherein said the first injecting paste material is the two slurries of cement-sodium silicate, in the two slurries of cement-sodium silicate: in the two slurries of described cement-sodium silicate: water/binder ratio is 0.7-0.9: 1, preferably 0.8: 1, the volume ratio of above-mentioned cement paste and water glass is 1: 1, wherein concentration of sodium silicate is 15～20 Baume degrees, 20 Baume degrees preferably, and gel time is short and stagnant water effect is good, and almost can meet real-life all operating modes, practical.The aperture of described vertical injected hole 121 is 130mm, is convenient to boring.
Described horizontal reinforcing body 11 comprises that the second injecting paste material and described the second injecting paste material that are filled in horizontal grouting hole 111 inside spread the formed footing in surrounding position rear and described horizontal grouting hole 111, described horizontal grouting hole 111 is at least 1 row who arranges from the bottom to top, be generally 5-7 row, preferably 5 arrange, the row of described horizontal grouting hole 111 also can design according to the concrete condition of actual building 1, described the second injecting paste material is ordinary Portland cement list slurries, raw material is easy to get, and cost is low; Described horizontal grouting hole 111 is arranged on the borehole wall of shield end well 2, distance between two described horizontal grouting holes 111 is the diffusion radius of described the second injecting paste material, 11 pairs of building lots that got up by enclosing of horizontal reinforcing body are reinforced, improve consolidation effect and reliability, cost is low and stability is high, thereby stability while guaranteeing below shield structure passes building, reduces shield-tunneling construction risk.The aperture of described horizontal grouting hole 111 is 130mm, is convenient to boring.
Described horizontal grouting hole 111 intersects and arranges with described vertical injected hole 121, and preferably the least significant end of described horizontal grouting hole 111 is positioned at the region that described vertical injected hole 121 surrounds, and both can save material, can play good fixed effect again.Described vertical injected hole 121 also can need to be designed to many rows according to reality and be set up in parallel, and improves consolidation effect.Structure for the ground stabilization of shield end well surrounding building of the present utility model is as follows in the Specific construction mode of practice:
The work progress of vertical reinforcing body 12: before grouting and reinforcing construction, should carry out on-the-spot grouting test, determine the best proportioning of slurries, the grouting pressure of slip casting and diffusion radius, determine the buried depth of the ground 101 of building 1; According to the position of the vertical reinforcing body 12 of designing requirement, at surrounding's unwrapping wire of the outline of building 1, determine the position of each vertical injected hole 121, and be numbered and a stake bit flag; After drilling equipment is ready to, adjust rig angle, orientation, guarantee that drilling rod is vertical, mating holes position, creeps into; Creep into designated depth (according to the buried depth of the ground 101 of building, determining), carry out slip casting (the two slurries of cement-sodium silicate that prepare in the vertical interior injection of injected hole 121), wait starching, when manometric pressure has the trend of increase, stop slip casting; Then Grouting Pipe is promoted to 1.0m, then carry out slip casting, wait starching, when manometric pressure has the trend of increase, stop slip casting; Circulation above-mentioned steps, until the slip casting mouth of pipe during apart from ground 3.0m, stops slip casting, and carries out sealing of hole.
The work progress of horizontal reinforcing body 11: after vertical reinforcing body 12 completes 7～14 days, guarantee that enclosing wall forms, and guarantee that the intensity of vertical reinforcing body 12 reaches requirement, then carry out horizontal grouting; According to the buried depth of starting well or received well 2 and the relation of building 1 position and the ground 101 of building, determine the optimum position of horizontal reinforcing body 11, then unwrapping wire, determine the position of each horizontal grouting hole 111, and be numbered and mark position; Set up scaffold, lay rig working platform, adjust rig level angle, orientation, mating holes position, creeps into; Creep into assigned address, carry out slip casting (at the interior injection cement of horizontal grouting hole 111 list slurries), wait starching, when manometric pressure has the trend of increase, stop slip casting; Then Grouting Pipe is outwards extracted to 1.0m, then carry out slip casting, wait starching, when manometric pressure has the trend of increase, stop slip casting; Circulation above-mentioned steps, until the slip casting mouth of pipe is positioned at outside vertical reinforcing body 11 enclosing districts, stops slip casting, and carries out sealing of hole.The sequence of construction of above-mentioned horizontal grouting hole 111 should be noted that: from most row's (namely end row) horizontal grouting hole 111 to start, upwards construction by row successively, every row's horizontal grouting hole 111 is constructed to centre by two ends simultaneously, to guarantee that the position of horizontal reinforcing body 11 formation is arranged in the ground of building 1.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. for a structure for shield end well surrounding building ground stabilization, it is characterized in that: comprise horizontal reinforcing body (11) and vertical reinforcing body (12);
Described vertical reinforcing body (12) comprises that the first injecting paste material and described the first injecting paste material that are filled in vertical injected hole (121) inside spread the formed footing in surrounding position rear and described vertical injected hole (121); Described vertical injected hole (121) is at least 1, and its distance to the outline of building (1) is 0.4-0.7 rice, and the distance between two described vertical injected holes (121) is the diffusion radius of described the first injecting paste material; Described vertical injected hole (121) bottom lower than the ground (101) of described building (1) 0.8-1.2 rice bottom;
Described horizontal reinforcing body (11) comprises that the second injecting paste material and described the second injecting paste material that are filled in horizontal grouting hole (111) inside spread the formed footing in surrounding position rear and described horizontal grouting hole (111); Described horizontal grouting hole (111) is at least 1 row who arranges from the bottom to top, and is all arranged on the borehole wall of shield end well (2), and the distance between two described horizontal grouting holes (111) is the diffusion radius of described the second injecting paste material;
Described horizontal grouting hole (111) intersects and arranges with described vertical injected hole (121).
2. the structure for the ground stabilization of shield end well surrounding building according to claim 1, is characterized in that: described vertical injected hole (121) is single setting.
3. according to the structure for the ground stabilization of shield end well surrounding building described in claim 1-2 any one, it is characterized in that: described horizontal grouting hole (111) is 5-7 row setting.
4. the structure for the ground stabilization of shield end well surrounding building according to claim 3, is characterized in that: described horizontal grouting hole (111) is that 5 rows arrange.
5. the structure for the ground stabilization of shield end well surrounding building according to claim 1, is characterized in that: described the second injecting paste material is cement list slurries.
6. the structure for the ground stabilization of shield end well surrounding building according to claim 1, is characterized in that: the least significant end of described horizontal grouting hole (111) is positioned at the region that described vertical injected hole (121) surrounds.
7. the structure for the ground stabilization of shield end well surrounding building according to claim 1, is characterized in that: the aperture of described vertical injected hole (121) and described horizontal grouting hole (111) is 130mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152511.0U CN204000836U (en) | 2014-03-27 | 2014-03-27 | A kind of structure for the ground stabilization of shield end well surrounding building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152511.0U CN204000836U (en) | 2014-03-27 | 2014-03-27 | A kind of structure for the ground stabilization of shield end well surrounding building |
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| Publication Number | Publication Date |
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| CN204000836U true CN204000836U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152511.0U Expired - Fee Related CN204000836U (en) | 2014-03-27 | 2014-03-27 | A kind of structure for the ground stabilization of shield end well surrounding building |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194218A (en) * | 2016-08-30 | 2016-12-07 | 中铁第四勘察设计院集团有限公司 | The shield end soil body reinforcement system in high water head deep and thick sand area |
| CN106677161A (en) * | 2016-12-29 | 2017-05-17 | 中铁隧道勘测设计院有限公司 | Treatment method for soft soil foundation of existing shield rectangular tunnel |
| CN108915706A (en) * | 2018-08-14 | 2018-11-30 | 中国铁建大桥工程局集团有限公司 | High hydraulic pressure shield launching portal horizontal grouting and static breaking construction method |
-
2014
- 2014-03-27 CN CN201420152511.0U patent/CN204000836U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194218A (en) * | 2016-08-30 | 2016-12-07 | 中铁第四勘察设计院集团有限公司 | The shield end soil body reinforcement system in high water head deep and thick sand area |
| CN106194218B (en) * | 2016-08-30 | 2019-12-06 | 中铁第四勘察设计院集团有限公司 | shield end soil body reinforcing system in high-water-head deep-thick sand layer area |
| CN106677161A (en) * | 2016-12-29 | 2017-05-17 | 中铁隧道勘测设计院有限公司 | Treatment method for soft soil foundation of existing shield rectangular tunnel |
| CN108915706A (en) * | 2018-08-14 | 2018-11-30 | 中国铁建大桥工程局集团有限公司 | High hydraulic pressure shield launching portal horizontal grouting and static breaking construction method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |