CN210975855U - Construction tool for deep foundation pit in limestone area and plugging device for gushing water - Google Patents
Construction tool for deep foundation pit in limestone area and plugging device for gushing water Download PDFInfo
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- CN210975855U CN210975855U CN201921720527.6U CN201921720527U CN210975855U CN 210975855 U CN210975855 U CN 210975855U CN 201921720527 U CN201921720527 U CN 201921720527U CN 210975855 U CN210975855 U CN 210975855U
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Abstract
The utility model discloses a construction tool for grey rock area deep basal pit and suddenly the plugging device who gushes water thereof for grey rock area deep basal pit suddenly gushes water plugging device includes: the first detection element is used for detecting whether the foundation pit generates inrush water or not; the drainage assembly is used for conducting drainage treatment on the sudden gushing water; the drilling assembly is used for drilling the inner side and the outer side of the foundation pit supporting structure at the water inrush position to determine a water inrush channel; and the plugging mixture is used for plugging the gushing water channel. A plugging device that is used for deep foundation ditch's in limestone area construction tool and gushes water suddenly can reliably, effectually carry out the shutoff to gushing the water passageway suddenly, avoid producing adverse effect to foundation ditch supporting construction and peripheral building.
Description
Technical Field
The utility model relates to a gush water seal block technical field suddenly, concretely relates to a plugging device that is used for construction tool of grey rock area deep basal pit and gushes water suddenly thereof.
Background
With the continuous development of the urbanization process, urban rail transit plays an increasingly important role, and lines inevitably pass through a limestone area sometimes. Due to the fact that more karst caves exist in the limestone area, and the crack growth and the underground water level of the limestone area are high, the phenomenon of water inrush easily occurs when deep foundation pits of rail transit construction are excavated in the limestone area. Therefore, the inrush water channel needs to be blocked in time, so as to avoid adverse effects on the foundation pit supporting structure and surrounding buildings (structures).
SUMMERY OF THE UTILITY MODEL
Based on this, a construction tool for a deep foundation pit in a limestone area and a plugging device for gushing water of the deep foundation pit are provided, a gushing water channel can be reliably and effectively plugged, and adverse effects on a foundation pit supporting structure and surrounding buildings are avoided.
The technical scheme is as follows:
in one aspect, a plugging device for water gushing of a deep foundation pit in a limestone area is provided, which comprises: the first detection element is used for detecting whether the foundation pit generates inrush water or not; the drainage assembly is used for conducting drainage treatment on the sudden gushing water; the drilling assembly is used for drilling the inner side and the outer side of the foundation pit supporting structure at the water inrush position to determine a water inrush channel; and the plugging mixture is used for plugging the gushing water channel.
When the plugging device for the water inrush of the deep foundation pit in the limestone area is used, the first detection element is used for monitoring the interior of the foundation pit, and when the water inrush occurs in the foundation pit, workers can be timely reminded of carrying out corresponding treatment, so that the adverse effect of the water inrush on a foundation pit supporting structure and surrounding buildings is avoided; after the sudden gushing water occurs, the drainage component is firstly utilized to drain the sudden gushing water, so that the sudden gushing water is prevented from flowing out randomly, and the structure of the whole foundation pit is damaged greatly; drilling holes on the inner side and the outer side of the foundation pit supporting structure close to the reference by using the drilling assembly with the position where the sudden water gushing occurs as the reference, so that the sudden water gushing channel is determined, and the sudden water gushing channel is conveniently and accurately plugged subsequently; after confirming the gushing water channel, the gushing water channel can be blocked, and adverse effects on a foundation pit supporting structure and surrounding buildings caused by gushing water are avoided.
The technical solution is further explained below:
in one embodiment, the drainage assembly comprises a drainage main pipe inserted into the gushing water channel, and a drainage pipe communicated with the drainage main pipe, wherein the drainage pipe is arranged on the side wall of the drainage main pipe.
In one embodiment, the plugging device for the inrush water of the deep foundation pit in the limestone area further comprises a counter-pressure layer for performing counter-pressure treatment in a preset area of the inrush water. So, utilize the counter-pressure layer to stabilize the foundation ditch bottom, avoid gushing out the washing away destruction of water suddenly.
In one embodiment, the counter-pressure layer comprises a sandbag or a concrete layer. Thus, the use is convenient.
In one embodiment, the drilling assembly includes a drill sleeve and a drive for driving the drill sleeve to drill a hole.
In one embodiment, the plugging device for water inrush of a deep foundation pit in a limestone area further comprises a sleeve valve pipe which is sleeved in the drill sleeve and used for pouring detection liquid.
In one embodiment, the plugging device for water inrush of a deep foundation pit in a limestone area further comprises a pressure detection element for detecting the pressure in the sleeve valve pipe.
In one embodiment, the plugging mixture comprises at least one of ceramsite or plastic granules and at least one of polyurethane slurry, cement slurry and cement mortar.
In another aspect, a construction tool for a deep foundation pit in a limestone area is provided, and comprises the blocking device for inrush water.
When the construction tool for the deep foundation pit in the limestone area is used, the first detection element is used for monitoring the interior of the foundation pit, and when gushing water occurs in the foundation pit, workers can be reminded of carrying out corresponding treatment in time, so that adverse effects of the gushing water on a foundation pit supporting structure and surrounding buildings are avoided; after the sudden gushing water occurs, the drainage component is firstly utilized to drain the sudden gushing water, so that the sudden gushing water is prevented from flowing out randomly, and the structure of the whole foundation pit is damaged greatly; drilling holes on the inner side and the outer side of the foundation pit supporting structure close to the reference by using the drilling assembly with the position where the sudden water gushing occurs as the reference, so that the sudden water gushing channel is determined, and the sudden water gushing channel is conveniently and accurately plugged subsequently; after confirming the gushing water channel, the gushing water channel can be blocked, and adverse effects on a foundation pit supporting structure and surrounding buildings caused by gushing water are avoided.
In one embodiment, the construction tool for the deep foundation pit in the limestone area further comprises a foundation pit supporting structure for supporting the side wall of the foundation pit. Therefore, the side wall of the foundation pit is stably supported by the foundation pit supporting structure.
Drawings
FIG. 1 is a schematic structural diagram of a plugging device for water inrush of a deep foundation pit in a limestone area according to an embodiment;
FIG. 2 is a schematic structural diagram of a plugging mixture of the plugging device for water inrush of a deep foundation pit in a limestone area of FIG. 1;
fig. 3 is a schematic structural diagram of a drainage assembly of the plugging device for water inrush of a deep foundation pit in a limestone area in fig. 1.
Description of reference numerals:
100. the method comprises the following steps of a foundation pit, 110, a preset area, 200, a drainage assembly, 210, a drainage main pipe, 220, a drainage pipe, 310, a drill bushing, 400, a plugging mixture, 500, a gushing water channel, 1000 and a supporting structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first", "second", "third", and the like do not denote any particular quantity or order, but rather are used to distinguish one name from another.
As shown in fig. 1 to 3, in one embodiment, there is provided a plugging device for deep foundation pit inrush water in a limestone area, including: a first detection element (not shown) for detecting whether the foundation pit 100 is flooded with water; the drainage assembly 200 is used for conducting drainage treatment on the sudden gushing water; a drilling assembly for drilling the inside and outside of the foundation pit support structure 1000 at the location of the inrush water to determine an inrush water channel 500; and a plugging mixture 400, the plugging mixture 400 being used for plugging the gushing water channel 500.
When the plugging device for the water inrush of the deep foundation pit in the limestone region is used, the first detection element is used for monitoring the interior of the foundation pit 100, and when the water inrush occurs in the foundation pit 100, workers can be timely reminded of carrying out corresponding treatment, so that the adverse effects of the water inrush on the foundation pit supporting structure 1000 and surrounding buildings are avoided; after the sudden water inrush occurs, the drainage component 200 is firstly utilized to drain the sudden water inrush, so that the sudden water inrush is prevented from flowing out randomly, and the structure of the whole foundation pit 100 is damaged greatly; then, by taking the position where the sudden water gushing occurs as a reference, drilling holes are drilled on the inner side and the outer side of the foundation pit supporting structure 1000 close to the reference by using the drilling assembly, so that the sudden water gushing channel 500 is determined, and the sudden water gushing channel 500 is conveniently and accurately plugged in a follow-up manner; after the gushing water channel 500 is confirmed, the gushing water channel 500 can be blocked, and adverse effects on the foundation pit supporting structure 1000 and surrounding buildings caused by gushing water are avoided.
It should be noted that the first detection element may be a camera, a video camera or other elements capable of monitoring the occurrence of the inrush water. Of course, it is also possible to manually monitor whether or not the inrush water occurs in the foundation pit 100 in real time. The inside of the foundation pit supporting structure 1000 is inside the foundation pit 100, and the outside of the foundation pit supporting structure 1000 is outside the foundation pit 100. The drilling range in which drilling is performed on the inside and outside of the foundation pit supporting structure 1000 can be flexibly adjusted according to actual conditions.
The drainage assembly 200 is preferably a drainage tube, which can simply and conveniently drain the gushing water. As shown in fig. 1 and 3, in one embodiment, the drainage assembly 200 includes a main drainage pipe 210 inserted into the gushing water channel 500, and a drainage pipe 220 communicated with the main drainage pipe 210, wherein the drainage pipe 220 is disposed on a side wall of the main drainage pipe 210. Therefore, the sudden surge water is led out from the sudden surge water channel 500 by the drainage main pipe 210, so that the sudden surge water can be timely depressurized, and the impact damage to surrounding rock and soil bodies caused by overlarge pressure is avoided; the water inrush is further along the preset direction by using the guide pipe 220, so that the water inrush is prevented from flowing randomly, and the related structures in the foundation pit 100 can be prevented from being scoured and damaged by the water inrush.
In one embodiment, the plugging device for deep foundation pit inrush water in limestone area further comprises a back pressure layer (not shown) for back pressure treatment in the pre-set area 110 of the inrush water. So, the further deterioration of gushing water dangerous situation can be prevented suddenly in the back pressure processing, for example, if the flow or the velocity of flow of gushing water suddenly is great, in order to avoid gushing out of gushing water suddenly and cause the destruction of washing away to the rock and soil body of gushing water suddenly department, after carrying out drainage processing to gushing water suddenly, utilize the back pressure layer to carry out the back pressure processing in gushing water's the predetermined region 110 suddenly, guarantee that gushing out of gushing water suddenly can not cause destruction to soil body or rock body around, guarantee the safety of follow-up construction. The back pressure treatment is performed in the preset area 110, the preset area 110 can be flexibly adjusted according to the field requirement, and the larger the flow speed or flow of the inrush water is, the larger the preset area 110 is. The back pressure layer may be a sand bag, a concrete layer, or other objects capable of pressing the rock mass of the foundation pit 100.
The drilling assembly may be a drill, drill press or other device capable of drilling. As shown in fig. 2, in one embodiment, the drilling assembly includes a drill sleeve 310 and a drive (not shown) for driving the drill sleeve 310 into a borehole. Thus, the driving member drives the drill sleeve 310 to drill, which is also convenient for the subsequent sleeve valve tube to be sleeved in the drill sleeve 310, so that the drilling and the pouring are performed simultaneously. The drive may be a motor or other element capable of driving the drill sleeve 310 to drill a hole.
Further, the plugging device for water inrush of deep foundation pit in limestone area further comprises a sleeve valve pipe (not shown) sleeved in the drill sleeve 310 and used for pouring detection liquid. Thus, in the drilling process, the sleeve valve pipe is sleeved into the drill sleeve 310, and the corresponding detection liquid is poured into the sleeve valve pipe, so that the drilling and the pouring can be simultaneously carried out, and whether the gushing water channel 500 is drilled or not can be detected in real time.
Further, the plugging device for water inrush of a deep foundation pit in a limestone area further comprises a pressure detecting element (not shown) for detecting the pressure in the sleeve valve pipe. In this way, in the process of filling the detection liquid and by using the pressure detection element to measure the pressure in the sleeve valve pipe, when the pressure is detected to rise fast and no slurry return occurs on the inner side of the foundation pit supporting structure 1000, it can be determined that the drilling position is outside the inrush water channel 500; when a slow pressure rise is detected and a slurry return phenomenon is detected on the inner side of the foundation pit supporting structure 1000, it can be determined that the drilling position is within the inrush water channel 500, and the inrush water channel 500 can be confirmed. The pressure sensing element may be a pressure sensor, a load cell or other element capable of sensing hydraulic pressure. Whether the inner side of the foundation pit supporting structure 1000 has slurry return or not can be monitored by using elements such as a camera, a video camera and the like, and whether slurry return or not can be monitored in real time manually.
Drilling treatment is carried out on the inner side and the outer side of the foundation pit supporting structure 1000 at the position of the sudden inrush water, and when the sudden inrush water channel 500 is determined, a drilling assembly is used for drilling to a sufficient depth until drilling to a stable water-resisting layer or a complete rock mass, so that the sudden inrush water channel 500 can be accurately found; in the drilling process, if a karst cave is encountered, the karst cave is penetrated until a complete rock body with a certain thickness is drilled, and the thickness of the rock body can be determined according to the actual geological condition of a site; in the drilling process, the sleeve valve pipe is sleeved into the drill sleeve 310, and corresponding detection liquid is filled into the sleeve valve pipe, so that drilling and filling can be carried out simultaneously, and whether the gushing water channel 500 is drilled or not can be detected in real time; in the process of filling the detection liquid, the pressure in the sleeve valve pipe is detected by using the pressure detection element, and when the pressure is detected to rise fast and no slurry return occurs on the inner side of the foundation pit supporting structure 1000, the drilling position can be judged to be outside the inrush water channel 500; when a slow pressure rise is detected and a slurry return phenomenon is detected on the inner side of the foundation pit supporting structure 1000, it can be determined that the drilling position is within the inrush water channel 500, and the inrush water channel 500 can be confirmed. The process of filling the detection liquid comprises the step of filling single slurry or pigment water into the sleeve valve tube. Therefore, after single slurry or pigment water is poured into the sleeve valve, whether slurry return occurs on the inner side of the foundation pit supporting structure 1000 can be detected timely, and the gushing water channel 500 can be found efficiently.
As shown in fig. 2, the plugging process of the gushing water channel 500 includes pouring a plugging mixture 400 into the gushing water channel 500. So, pour into the shutoff mixture 400 to gushing water passageway 500 in, utilize the shutoff mixture 400 to carry out effectual shutoff to gushing water passageway 500, simultaneously, utilize the shutoff mixture 400 also can carry out effectual shutoff to corresponding crack to guarantee the safety of foundation ditch 100. The plugging mixture 400 is preferably a mixture of ceramsite and cement slurry, so that the structure of the plugging mixture 400 is more stable, the plugging effect on the inrush water channel 500 is better, and the inrush water channel 500 can be effectively plugged under the condition of larger inrush water. Of course, in other embodiments, the ceramic particles may be replaced by plastic particles, the cement slurry may be replaced by polyurethane slurry or cement mortar, and the plugging mixture 400 formed by mixing may be used to effectively plug the inrush water channel 500.
Above-mentioned a plugging device for water is gushed to limestone area deep basal pit suddenly has following advantage at least: (1) the gushing water channel 500 can be efficiently and accurately found, and the gushing water channel 500 can be effectively plugged in the follow-up process; (2) the inrush water channel 500 can be reliably and effectively blocked, and adverse effects on the foundation pit supporting structure 1000 and surrounding buildings are avoided; (3) can effectually carry out the drainage and carry out the back pressure to gushing the corresponding region of water suddenly to gushing water, avoid gushing the water suddenly and cause to erode the destruction to the relevant structure in the foundation ditch 100.
In one embodiment, a construction tool for a deep foundation pit in a limestone area is further provided, and the construction tool comprises the inrush water plugging device in any one of the embodiments.
When the construction tool for the deep foundation pit in the limestone region is used, the first detection element is used for monitoring the interior of the foundation pit 100, and when water inrush occurs in the foundation pit 100, workers can be timely reminded of carrying out corresponding treatment, so that adverse effects of the water inrush on the foundation pit supporting structure 1000 and surrounding buildings are avoided; after the sudden water inrush occurs, the drainage component 200 is firstly utilized to drain the sudden water inrush, so that the sudden water inrush is prevented from flowing out randomly, and the structure of the whole foundation pit 100 is damaged greatly; then, by taking the position where the sudden water gushing occurs as a reference, drilling holes are drilled on the inner side and the outer side of the foundation pit supporting structure 1000 close to the reference by using the drilling assembly, so that the sudden water gushing channel 500 is determined, and the sudden water gushing channel 500 is conveniently and accurately plugged in a follow-up manner; after the gushing water channel 500 is confirmed, the gushing water channel 500 can be blocked, and adverse effects on the foundation pit supporting structure 1000 and surrounding buildings caused by gushing water are avoided.
In one embodiment, the construction tool for a deep foundation pit in a limestone area further includes an excavation supporting structure 1000 for supporting a sidewall of the foundation pit 100. Therefore, the side wall of the foundation pit 100 is stably supported by the foundation pit supporting structure 1000, so that the foundation pit 100 is prevented from collapsing in the construction process, and the construction can be safely carried out. The foundation pit supporting structure 1000 may adopt a form of supporting double-row piles, or may adopt a form of supporting an underground continuous wall, and only needs to satisfy the requirement of stably supporting the side wall of the foundation pit 100.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples represent only a few embodiments of the present invention, which are described in detail and detail, but are not to be construed as limiting the scope of the 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 (10)
1. The utility model provides a plugging device that is used for abrupt gushing water of deep basal pit in limestone area which characterized in that includes:
the first detection element is used for detecting whether the foundation pit generates inrush water or not;
the drainage assembly is used for conducting drainage treatment on the sudden gushing water;
the drilling assembly is used for drilling the inner side and the outer side of the foundation pit supporting structure at the water inrush position to determine a water inrush channel; and
and the plugging mixture is used for plugging the burst water channel.
2. The plugging device for water inrush from deep foundation pits in limestone areas according to claim 1, wherein the drainage assembly comprises a drainage main pipe inserted into the water inrush channel, and a drainage pipe communicated with the drainage main pipe, and the drainage pipe is arranged on the side wall of the drainage main pipe.
3. The plugging device for inrush water of a deep foundation pit of a limestone area of claim 1, further comprising a back pressure layer for back pressure treatment in a preset area of the inrush water.
4. The plugging device for water inrush from a deep foundation pit in a limestone area of claim 3, wherein the counter pressure layer comprises a sand bag or a concrete layer.
5. The plugging device for deep foundation pit inrush water of a limestone area as claimed in any one of claims 1 to 4, wherein the drilling assembly comprises a drill bushing and a drive for driving the drill bushing to drill a hole.
6. The plugging device for water inrush from a deep foundation pit in a limestone area as claimed in claim 5, further comprising a sleeve valve pipe sleeved in the drill sleeve and used for filling detection liquid.
7. The plugging device for water inrush from a deep foundation pit in a limestone area of claim 6, further comprising a pressure detection element for detecting a pressure inside the sleeve valve pipe.
8. The plugging device for water inrush from a deep foundation pit in a limestone area according to any one of claims 1 to 4, wherein the plugging mixture comprises at least one of ceramsite or plastic granules and at least one of polyurethane slurry, cement slurry and cement mortar.
9. A working tool for deep foundation pits in limestone areas, comprising a device for plugging gushing water according to any one of claims 1 to 8.
10. The tool of claim 9, further comprising a foundation pit support structure for supporting a sidewall of the foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921720527.6U CN210975855U (en) | 2019-10-14 | 2019-10-14 | Construction tool for deep foundation pit in limestone area and plugging device for gushing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921720527.6U CN210975855U (en) | 2019-10-14 | 2019-10-14 | Construction tool for deep foundation pit in limestone area and plugging device for gushing water |
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| Publication Number | Publication Date |
|---|---|
| CN210975855U true CN210975855U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921720527.6U Active CN210975855U (en) | 2019-10-14 | 2019-10-14 | Construction tool for deep foundation pit in limestone area and plugging device for gushing water |
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| CN (1) | CN210975855U (en) |
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- 2019-10-14 CN CN201921720527.6U patent/CN210975855U/en active Active
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