CN210113318U - Foundation ditch basement gushes water and gushes sand plugging device - Google Patents
Foundation ditch basement gushes water and gushes sand plugging device Download PDFInfo
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- CN210113318U CN210113318U CN201920459950.9U CN201920459950U CN210113318U CN 210113318 U CN210113318 U CN 210113318U CN 201920459950 U CN201920459950 U CN 201920459950U CN 210113318 U CN210113318 U CN 210113318U
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Abstract
The utility model provides a foundation ditch basement gushes water and gushes sand plugging device. The plugging device comprises a circular steel sleeve, a water stop ring plate arranged on the circular steel sleeve and a plugging cover plate arranged at the top of the steel sleeve, wherein a water drain valve device is arranged at the part of the circular steel sleeve above the water stop ring plate, and a grouting pipe is arranged on the plugging cover plate; the inner tube area of circular steel sleeve is greater than the area of gushing water and gushing sand position to use gushing water and gushing sand point to install at gushing water and gushing sand point periphery at the foundation ditch pit bottom as the centre of a circle, its bottom extends to foundation ditch basement below 1m, after the steel sleeve installation targets in place, the outlet valve on its upper portion is located the concrete bottom plate top at the foundation ditch basement, the shutoff apron of top surface is located the position below the floor concrete backfill layer top surface at the foundation ditch basement. The utility model discloses simple structure installs and gushes water sand department at the basement, prevents to gush the water scope and enlarges, reduces the basement and gushes water sand to the peripheral influence of foundation ditch, can be quick, and effectual control gushes the water scope.
Description
Technical Field
The utility model relates to a foundation ditch open cut method construction field specifically is a foundation ditch basement gushes water and gushes sand plugging device.
Background
In current urban construction, more and more deep and large foundation pits are provided, and particularly, subway engineering is mostly positioned in the center of a city. The deep foundation pit engineering is generally located in areas where buildings and various pipelines are relatively dense, the construction environment of the deep foundation pit engineering is relatively complex, effective measures cannot be taken during the deep foundation pit construction to reduce the influence on the surrounding environment, and particularly effective control measures cannot be taken timely when the dangerous situation of water burst and sand burst occurs on the substrate, so that accidents such as pipeline breakage around the deep foundation pit, cracking of surrounding buildings, ground collapse and the like are easily caused, great negative effects are brought to the whole subway engineering construction, and the social influence is severe. In order to ensure the safe implementation of subway structure engineering, once the water and sand gushes from the basement occur in the construction process, the method is particularly important to control in time by adopting a scientific and effective method. At present, in case of a larger foundation water burst and sand burst dangerous situation in the conventional method, the common method is to backfill the earth side and reversely press, backfill concrete at the water burst position, and assist double-slurry grouting outside a foundation pit, but if treatment is not timely, the quantity of backfill earth is insufficient, and the quantity of concrete is insufficient, the water burst is difficult to stop, and both the backfill earth side and the concrete tend to cause increase of later-stage workload, prolong construction period and increase of cost.
In the conventional emergency method for water and sand gushing at the base, no matter blocking is taken as a main part, discharging is taken as a main part, or blocking and discharging are combined, once the treatment measures are not right or timely enough, the optimal treatment opportunity is missed, and great safety accidents are easily caused. The loss caused is huge, and the social influence caused is bad.
Disclosure of Invention
The utility model provides a sand gushing plugging device is gushed to basement according to prior art's not enough, the device can be used for installing in gushing water and gushing sand department, combines slip casting technology together to gush water on a large scale at the bottom of the foundation ditch hole and gush water sand gushing point and carry out the shutoff, and the shutoff is fast, effectual, with low costs.
In order to achieve the above object, the utility model provides a technical scheme: the utility model provides a foundation ditch basement gushes water and gushes sand plugging device which characterized in that: the plugging device comprises a circular steel sleeve, a water stop ring plate arranged in the middle of the circular steel sleeve and a plugging cover plate arranged at the top of the steel sleeve, wherein a water drain valve device is arranged at the part of the circular steel sleeve above the water stop ring plate, and a grouting pipe is arranged on the plugging cover plate; the inner tube area of circular steel sleeve is greater than the area of gushing water and gushing sand position to use gushing water and gushing sand point to install at gushing water and gushing sand point periphery at the foundation ditch pit bottom as the centre of a circle, its bottom extends to foundation ditch basement below 1m, after the steel sleeve installation targets in place, the outlet valve on its upper portion is located the concrete bottom plate top at the foundation ditch basement, the shutoff apron of top surface is located the position below the floor concrete backfill layer top surface at the foundation ditch basement.
The utility model provides a technical scheme: the plugging device further comprises a concrete cover plate, the concrete cover plate is formed by pouring concrete in a range of 3-5m around the base part of the foundation pit in the steel sleeve after the circular steel sleeve is installed on a water gushing and sand gushing point at the bottom of the foundation pit, and the thickness of the concrete cover plate is 40-60 cm.
The utility model provides a technical scheme: the steel sleeve is a steel cylinder with the diameter of 800-1000mm and the thickness of 10mm, and the bottom end of the steel cylinder is inserted into a position 1-2 m below the substrate.
The utility model provides a technical scheme: three grouting pipes with different lengths and diameters of 25mm are arranged in the center of the plugging cover plate, wherein the longest grouting pipe is a drainage pipe in the grouting process, the middle pipe is a grouting pipe, and the short pipes are standby grouting pipes.
The utility model provides a technical scheme: when the steel sleeve is installed at a water gushing and sand gushing point at the bottom of a foundation pit, the plugging cover plate is located 25-35 cm below the top surface of a bottom plate concrete backfill layer of the foundation pit base.
The utility model provides a technical scheme: : the plugging cover plate is a flange steel cover plate and is in sealing connection with the upper cylinder opening of the steel sleeve through a bolt, and a sealing rubber ring plate is arranged on the connection surface of the plugging cover plate.
The utility model provides a technical scheme: and two water stop ring plates are arranged, one of the water stop ring plates is arranged in the concrete cover plate, and the other water stop ring plate is arranged in the concrete bottom plate after the steel sleeve is installed in place.
The utility model comprises a circular steel sleeve arranged at the position of the water gushing and sand gushing, the circular steel sleeve controls the water gushing and sand gushing to a smaller range, a water pump with proper power is selected to pump water according to the water inflow amount, and simultaneously a high-strength early-strength concrete cover plate is applied to the periphery of the steel sleeve, the concrete cover plate and the steel sleeve form a rigid whole to prevent the water inflow range from being expanded, the water stop ring plate is arranged on the outer surface of the upper half part of the steel sleeve to form a steel ring with a circular horizontal section to prevent seepage water from overflowing upwards from the outer wall of the steel sleeve, the top part of the water stop ring plate is provided with a plug steel cover plate which is connected with the steel sleeve in a flange mode, the side wall of the upper opening of the pipe is provided with a water drain valve, when the flange steel cover plate at the top of the sleeve is installed, gushing water is discharged from the side wall drain valve, a grouting pipe is installed in the center of the steel cover plate, after the steel sleeve wellhead steel plate is installed, double-fluid grouting is carried out through the grouting pipe, and a water burst channel is thoroughly blocked.
The utility model discloses simple structure, with low costs, quick, easy operation install and gush water sand department at the basement, prevent to gush the water scope and enlarge, supplementary foundation ditch outer soil layer slip casting reduces the basement and gushes water sand to the peripheral influence of foundation ditch, can be quick, and effectual control gushes the water scope.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a steel sleeve according to the present invention;
FIG. 3 is a schematic structural view of the steel sleeve sealing cover of the present invention;
FIG. 4 is a top view of the steel sleeve of the present invention;
fig. 5 is a schematic view of the installation state of the present invention.
In the figure: the concrete foundation pit comprises the following components, by weight, 1-a steel sleeve, 2-a water stop ring plate, 3-a water drain valve, 4-a water gushing and sand gushing point, 5-a concrete bottom plate, 6-a blocking cover plate, 6-1-a sealing rubber ring plate, 6-2-a bolt, 7-a grouting pipe, 8-a concrete cover plate, 9-a concrete backfill layer and 10-a foundation pit base.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Embodiments are shown in fig. 1 to 4, and the following technical solutions shown in the drawings are specific solutions of the embodiments of the present invention, and are not intended to limit the scope of the claimed invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The embodiment provides a foundation pit base water inrush sand gushing plugging device, which is specifically shown in fig. 1 and 2 and comprises a circular steel sleeve 1, a water stop ring plate 2 arranged in the middle of the circular steel sleeve 1, a plugging cover plate 6 arranged at the top of the steel sleeve 1 and a concrete cover plate 8, wherein the water stop ring plate 2 is provided with two blocks, one block is arranged below the middle of the steel sleeve 1, the other block is arranged above the middle of the steel sleeve 1, and a water drain valve 3 is arranged at the part of the circular steel sleeve 1 above the water stop ring plate 2; as shown in fig. 3 and 4, the plugging cover plate 6 is a flange steel cover plate, and is hermetically connected with the upper opening of the steel sleeve 1 through a bolt 6-2, a sealing rubber ring plate 6-1 is arranged on the connecting surface of the plugging cover plate, three grouting pipes 7 with different lengths are mounted on the plugging cover plate 6, and the diameter of each grouting pipe 7 is 25 mm. As shown in figure 1, the area of the inner cylinder of the circular steel sleeve 1 is larger than the area of the water gushing sand gushing position, the water gushing sand gushing point 4 is arranged at the bottom of a foundation pit at the periphery of the water gushing sand gushing point 4 with the center of circle as the center, the bottom of the water gushing sand gushing point extends to the position of 1-2 m of the foundation pit base, the concrete cover plate 8 is formed by pouring concrete in the range of 3-5m around the position of the foundation pit base, where the steel sleeve is arranged at the water gushing sand gushing point 4 at the bottom of the foundation pit, after the circular steel sleeve 1 is arranged at the water gushing sand gushing point.
As shown in fig. 5, after the steel sleeve 1 is installed in place, the concrete bottom plate 5 is poured first, after the pouring, the water stop ring plate 2 at the lower part is arranged in the concrete cover plate 8, the water stop ring plate 2 at the upper part is arranged in the concrete bottom plate 5, the water escape valve 3 at the upper part is arranged above the concrete bottom plate 5 at the foundation pit base, and the blocking cover plate 6 at the top surface is arranged at a position 25-35 cm below the top surface of the concrete backfill layer 9 of the bottom plate at the foundation pit base.
Adopt the utility model discloses a when plugging device carries out the foundation ditch base and gushes water and gush sand shutoff, its concrete installation procedure as follows:
(1) adopting a steel sleeve with the diameter of 800-;
(2) and pouring a high-grade early-strength concrete cover plate with the thickness of 50cm within the range of 3-5m around the steel sleeve. During the period, according to the peripheral monitoring condition, when the settlement rate or the accumulated value of peripheral buildings, pipelines and the earth surface is greater than the early warning value, backward cement-water glass double-liquid-slurry grouting reinforcement is carried out on the ground layers at the periphery of the foundation pit at different depths, so that the ground layers at the periphery of the foundation pit and the buildings are prevented from settling;
(3) after the concrete is finally set, performing retreating type cement-water glass double-liquid slurry grouting reinforcement on a disturbed soil layer within the depth range of 1.0m at the bottom of the cover plate within the range of the peripheral cover plate of the steel sleeve, and solidifying the soil layer at the periphery of a water burst range to prevent water burst from diffusing to the periphery along the disturbed soil layer after the wellhead of the steel sleeve is plugged;
(4) and opening a drainage ball valve on the side wall of the steel sleeve, installing a flange steel cover plate of the steel sleeve wellhead, plugging the steel sleeve wellhead, then closing a drainage valve on the side wall, reserving a grouting pipe in the steel cover plate, and selecting a medium-length pipe for carrying out cement-water glass double-slurry grouting and plugging water burst.
The above description is only one embodiment of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. The utility model provides a foundation ditch basement gushes water and gushes sand plugging device which characterized in that: the plugging device comprises a circular steel sleeve (1), a water stop ring plate (2) arranged in the middle of the circular steel sleeve (1) and a plugging cover plate (6) arranged at the top of the steel sleeve (1), wherein a water drain valve (3) is arranged at the part of the circular steel sleeve (1) above the water stop ring plate (2), and a grouting pipe (7) is arranged on the plugging cover plate (6); the inner tube area of circular steel sleeve (1) is greater than the area of gushing water and gushing sand position to gushing water and gushing sand point (4) and installing gushing water and gushing sand point (4) periphery at the foundation ditch bottom of the hole as the centre of a circle, its bottom extends to below the foundation ditch basement 1m, after steel sleeve (1) is installed in place, drain valve (3) on its upper portion are located the concrete bottom plate (5) top of foundation ditch basement, the shutoff apron (6) of top surface is located the position below the floor concrete backfill layer (9) top surface of foundation ditch basement.
2. The foundation pit base water inrush sand inrush plugging device of claim 1, characterized in that: the plugging device further comprises a concrete cover plate (8), the concrete cover plate (8) is formed by pouring concrete in a range of 3-5m around the position, located at the foundation pit base, of the steel sleeve after the circular steel sleeve (1) is installed on a water gushing and sand gushing point (4) at the bottom of the foundation pit, and the thickness of the concrete cover plate (8) is 40-60 cm.
3. The foundation pit foundation water and sand gushing plugging device according to claim 1 or 2, wherein: the steel sleeve (1) is a steel sleeve with the diameter of 800-1000mm and the thickness of 10mm, and the bottom end of the steel sleeve is inserted into a position 1-2 m below the substrate.
4. The foundation pit foundation water and sand gushing plugging device according to claim 1 or 2, wherein: three grouting pipes (7) with different lengths and diameters of 25mm are arranged in the center of the plugging cover plate (6), wherein the longest grouting pipe is a drainage pipe in the grouting process.
5. The foundation pit foundation water and sand gushing plugging device according to claim 1 or 2, wherein: when the steel sleeve (1) is installed on a water gushing and sand gushing point (4) at the bottom of a foundation pit, the plugging cover plate (6) is located 25-35 cm below the top surface of a bottom plate concrete backfill layer (9) of the foundation pit base.
6. The foundation pit foundation water and sand gushing plugging device according to claim 1 or 2, wherein: the plugging cover plate (6) is a flange steel cover plate and is in sealing connection with the upper opening of the steel sleeve (1) through a bolt (6-2), and a sealing rubber ring plate (6-1) is arranged on the connection surface of the plugging cover plate.
7. The foundation pit base water inrush sand gushing plugging device of claim 2, characterized in that: the water stop ring plates (2) are arranged in two, one of the water stop ring plates is arranged in the concrete cover plate (8) and the other water stop ring plate is arranged in the concrete bottom plate (5) after the steel sleeve (1) is installed in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920459950.9U CN210113318U (en) | 2019-04-04 | 2019-04-04 | Foundation ditch basement gushes water and gushes sand plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920459950.9U CN210113318U (en) | 2019-04-04 | 2019-04-04 | Foundation ditch basement gushes water and gushes sand plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN210113318U true CN210113318U (en) | 2020-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920459950.9U Active CN210113318U (en) | 2019-04-04 | 2019-04-04 | Foundation ditch basement gushes water and gushes sand plugging device |
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| CN (1) | CN210113318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881694A (en) * | 2019-04-04 | 2019-06-14 | 中铁十一局集团城市轨道工程有限公司 | A kind of constructing structure blocked for foundation pit substrate Sand and method |
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2019
- 2019-04-04 CN CN201920459950.9U patent/CN210113318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881694A (en) * | 2019-04-04 | 2019-06-14 | 中铁十一局集团城市轨道工程有限公司 | A kind of constructing structure blocked for foundation pit substrate Sand and method |
| CN109881694B (en) * | 2019-04-04 | 2024-02-06 | 中铁十一局集团城市轨道工程有限公司 | Construction structure and method for plugging foundation pit substrate water and sand gushing |
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