CN204662467U - Underground structure dewatering well sealing water device - Google Patents
Underground structure dewatering well sealing water device Download PDFInfo
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- CN204662467U CN204662467U CN201520335373.4U CN201520335373U CN204662467U CN 204662467 U CN204662467 U CN 204662467U CN 201520335373 U CN201520335373 U CN 201520335373U CN 204662467 U CN204662467 U CN 204662467U
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- China
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- dewatering well
- black box
- long tube
- tube body
- annular slab
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Abstract
The utility model discloses underground structure dewatering well sealing water device, hermetically-sealed construction comprises the first black box and the second black box, first black box comprises long tube body and annular slab, long tube body bottom is stretched in dewatering well, the outer portion of annular slab and the inner wall sealing of dewatering well are fixed, long tube wall, the first sealant is filled with in the space that the inwall of dewatering well and the upper surface of annular slab surround, one sealing cap can be fixed on long tube body upper end and be sealed by the tube chamber of long tube body, second black box includes sleeve, lower cartridge is enclosed within dewatering well outside, and the lower outside of sleeve is fixed with pressing plate, the end of pressing plate extends out in the soil below foundation ditch bed course, space between first black box and the second black box is filled with the second sealant.The utility model have structure simple, can effectively shutoff dewatering well, the reliable advantage of shutoff steady quality.
Description
Technical field
The utility model relates to construction technology in geotechnical engineering field, is specifically related to underground structure dewatering well sealing water device.
Background technology
Along with developing on an unprecedented scale of China's geotechnical engineering, China's base pit engineering quantity gets more and more, and scale is also increasing, the degree of depth of foundation ditch also along with and deepen, and the subsurface geology condition of complexity makes foundation pit dewatering science rise rapidly.Current, China is larger and the degree of depth is darker foundation ditch is more, after such pit earthwork excavation, after overburden layer more than pressure water head is die-offed, very easily Foundation Pit Pouring phenomenon occurs, and taking dewatering well to draw water is ensure that base plate of foundation pit resists to dash forward to gush stable effective ways.But the shutoff of the dewatering well of this type of foundation ditch is extremely difficult, this type of foundation ditch hydraulic pressure is large, the water yield large, once stop pumping, water level sharply rises, and Foundation Pit Pouring occurs, and produces buoyancy, affect normal construction to base plate of foundation pit.
Existing method for blocking first suction pump is put into dewatering well to draw water, when construction proceeds to a certain degree, be taken out by suction pump from dewatering well, only drinking-water pipe is put into dewatering well, meanwhile, inside dewatering well, weld an annular slab, reserve a hole in the middle of annular slab, pass for drinking-water pipe.After Foundation Design terminates, drinking-water pipe is extracted out from dewatering well, the eyelet welding in the middle of annular slab is dead, dewatering well is sealed.
But this method needs to carry out twice welding, any welding quality has problem all can cause sealing unsuccessfully, and welding process all needs manual operation, and difficult quality controls.
Utility model content
Technical problem to be solved in the utility model is for the above-mentioned state of the art, and provide a kind of structure simple, can effectively shutoff dewatering well, the reliable dewatering well hermetically-sealed construction of shutoff steady quality.
The utility model solves the problems of the technologies described above adopted technical scheme:
Underground structure dewatering well sealing water device, comprise the foundation ditch bed course being cast in dewatering well top, foundation ditch bed course reserves dewatering well indwelling mouth above dewatering well, wherein: hermetically-sealed construction comprises the first black box and the second black box, first black box includes long tube body and is arranged on the annular slab of long its bottom, the outer tube diameter of long tube body is less than the internal diameter of dewatering well, long tube body bottom is stretched in dewatering well, the internal ring portion of annular slab and the outer tube wall of long tube body seal fixing, the outer portion of annular slab and the inner wall sealing of dewatering well are fixed, long tube wall, the first sealant is filled with in the space that the inwall of dewatering well and the upper surface of annular slab surround, long tube body is the body of up/down perforation, one sealing cap can be fixed on long tube body upper end and be sealed by the tube chamber of long tube body, second black box includes the sleeve of a up/down perforation, the external surface of sleeve and being sealed and matched of dewatering well indwelling mouth, lower cartridge is enclosed within dewatering well outside, and the lower outside of sleeve is fixed with pressing plate, the end of pressing plate extends out in the soil below foundation ditch bed course, space between first black box and the second black box is filled with the second sealant.
For optimizing technique scheme, the concrete measure taked also comprises:
The first above-mentioned black box and the second black box are steel material and make.
The upper end of above-mentioned long tube body is provided with threaded body, and long tube body upper end seals by being spun on threaded body by sealing cap.
The internal ring portion of above-mentioned annular slab and the outer tube wall of long tube body are fixed by welded seal, and the outer portion of annular slab and the inwall of dewatering well are fixed by welded seal.
The first above-mentioned sealant and the second sealant are layer of concrete.
Above-mentioned pressing plate horizontally outward extends.
By fill concrete layer between the external surface of above-mentioned sleeve and dewatering well indwelling mouth, the two is made to be sealed and matched.
Above-mentioned sleeve and pressing plate are integrated part.
Dewatering well hermetically-sealed construction of the present utility model, adopt the first black box and the combination of the second black box to be sealed by dewatering well, good sealing effect, construction method is simple.First black box is inserted in dewatering well, then weld with dewatering well, and by fill gaps cement therebetween, first black box and dewatering well are combined together, and position that the first black box and dewatering well be tightly connected can not leak, first black box is vertically through, can insert drinking-water pipe, when sealing dewatering well completely, drinking-water pipe to be taken out, seal this through hole with sealing cap.Because the first black box top can arrange the structures such as screw thread, seal easily, directly seal dewatering well mutually, difficulty declines greatly, although only just tentatively can be completed the sealing of dewatering well by the first black box, but as there is the sealing cap sealing problem such as loosely, or can cause sealing unsuccessfully, the utility model is provided with the second black box, by the space joints cement between the first black box and the second black box, first black box and the second black box are combined together, second black box is provided with pressing plate, the end of pressing plate extends out in the soil below foundation ditch bed course, building on foundation ditch bed course and foundation ditch bed course can provide pressure for pressing plate, make underground water cannot the entirety that forms of jack-up first black box and the second black box, the utility model is by combining together the first black box and the second black box, significantly improve sealing effectiveness and the anti-floating ability of dewatering well hermetically-sealed construction.
To sum up, the utility model have structure simple, can effectively shutoff dewatering well, the reliable advantage of shutoff steady quality.
Accompanying drawing explanation
Fig. 1 is the dewatering well structural representation not arranging the first black box and the second black box;
Fig. 2 is the dewatering well structural representation arranging the first black box;
Fig. 3 is the structural representation of building the first sealant on Fig. 2 basis;
Fig. 4 is on the basis of Fig. 3, has installed the structural representation of the second black box;
Fig. 5 is structural representation of the present utility model.
Wherein, Reference numeral is: foundation ditch bed course 1, dewatering well 2, dewatering well indwelling mouth 3, first black box 4, long tube body 41, annular slab 42, sealing cap 43, second black box 5, sleeve 51, pressing plate 52, first sealant 6, second sealant 7.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Underground structure dewatering well sealing water device, comprise the foundation ditch bed course 1 being cast in dewatering well 2 top, foundation ditch bed course 1 reserves dewatering well indwelling mouth 3 above dewatering well 2, wherein: hermetically-sealed construction comprises the first black box 4 and the second black box 5, first black box 4 includes long tube body 41 and is arranged on the annular slab 42 bottom long tube body 41, the outer tube diameter of long tube body 41 is less than the internal diameter of dewatering well 2, long tube body 41 bottom is stretched in dewatering well 2, the internal ring portion of annular slab 42 and the outer tube wall of long tube body 41 seal fixing, the outer portion of annular slab 42 and the inner wall sealing of dewatering well 2 are fixed, long tube body 41 outer wall, the first sealant 6 is filled with in the space that the inwall of dewatering well 2 and the upper surface of annular slab 42 surround, long tube body 41 is the body of up/down perforation, one sealing cap 43 can be fixed on long tube body 41 upper end and be sealed by the tube chamber of long tube body 41, second black box 5 includes the sleeve 51 of a up/down perforation, the external surface of sleeve 51 and being sealed and matched of dewatering well indwelling mouth 3, it is outside that sleeve 51 bottom is enclosed within dewatering well 2, and the lower outside of sleeve 51 is fixed with pressing plate 52, the end of pressing plate 52 extends out in the soil below foundation ditch bed course 1, space between first black box 4 and the second black box 5 is filled with the second sealant 7.
In embodiment, the first black box 4 and the second black box 5 are steel material and make.
In embodiment, the upper end of long tube body 41 is provided with threaded body, and long tube body 41 upper end seals by being spun on threaded body by sealing cap 43.
In embodiment, the internal ring portion of annular slab 42 and the outer tube wall of long tube body 41 are fixed by welded seal, and the outer portion of annular slab 42 and the inwall of dewatering well 2 are fixed by welded seal.
In embodiment, the first sealant 6 and the second sealant 7 are layer of concrete.
In embodiment, pressing plate 52 horizontally outward extends.
In embodiment, by fill concrete layer between the external surface of sleeve 51 and dewatering well indwelling mouth 3, the two is made to be sealed and matched.
In embodiment, sleeve 51 and pressing plate 52 are integrated part.
Using method of the present utility model is as follows: after pit earthwork excavation, suction pump is put into dewatering well 2 and draw water, and keeps water level to be in safe altitude, as shown in Figure 1; Then carry out normal construction, when construction proceeds to a certain degree, intensity of drawing water can suitably reduce, at this moment suction pump is taken out from dewatering well 2, first black box 4 is inserted in dewatering well 2, annular slab 42 and dewatering well 2 inwall welded seal, as shown in Figure 2, then concreting on annular slab 42, first black box 4 is fixed as one with dewatering well 2, and long tube body 41 top wouldn't seal, and drinking-water pipe passes from long tube body 41, stretch in dewatering well 2 and draw water, as shown in Figure 3; Along with the carrying out of construction, when no longer needing dewatering well 2 to draw water, drinking-water pipe is extracted out from dewatering well 2, because long tube body 41 caliber of the first black box 4 is little, head arranges threaded body, and therefore the first black box 4 is easy to fixing seal, sealing cap 43 is spun on the first black box 4, seal the first black box 4 upper end, then the second black box 5 is installed on the first black box 4, as shown in Figure 4; Build foundation ditch bed course 1, the outer rim of the second black box 5 and the indwelling mouth of dewatering well 2 is made to keep sealing, space fill concrete between first black box 4 and the second black box 5, after to be solidified, first black box 4 is integrated with the second black box 5 one-tenth, by dewatering well 2 secondary seal, as shown in Figure 5.
Below be only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, not departing from the some improvements and modifications under the utility model principle prerequisite, protection domain of the present utility model should be considered as.
Claims (8)
1. underground structure dewatering well sealing water device, comprise the foundation ditch bed course (1) being cast in dewatering well (2) top, foundation ditch bed course (1) reserves dewatering well indwelling mouth (3) in dewatering well (2) top, it is characterized in that: hermetically-sealed construction comprises the first black box (4) and the second black box (5), described the first black box (4) includes long tube body (41) and is arranged on the annular slab (42) of long tube body (41) bottom, the outer tube diameter of described long tube body (41) is less than the internal diameter of dewatering well (2), long tube body (41) bottom is stretched in dewatering well (2), the internal ring portion of described annular slab (42) and the outer tube wall of long tube body (41) seal fixing, the outer portion of described annular slab (42) and the inner wall sealing of dewatering well (2) are fixed, described long tube body (41) outer wall, the first sealant (6) is filled with in the space that the inwall of dewatering well (2) and the upper surface of annular slab (42) surround, the body that described long tube body (41) is up/down perforation, one sealing cap (43) can be fixed on long tube body (41) upper end and be sealed by the tube chamber of long tube body (41), described the second black box (5) includes the sleeve (51) of a up/down perforation, the described external surface of sleeve (51) and being sealed and matched of dewatering well indwelling mouth (3), it is outside that described sleeve (51) bottom is enclosed within dewatering well (2), and the lower outside of sleeve (51) is fixed with pressing plate (52), the end of described pressing plate (52) extends out in the soil of foundation ditch bed course (1) below, space between described the first black box (4) and the second black box (5) is filled with the second sealant (7).
2. underground structure dewatering well sealing water device according to claim 1, is characterized in that: described the first black box (4) and the second black box (5) are steel material and make.
3. underground structure dewatering well sealing water device according to claim 2, it is characterized in that: the upper end of described long tube body (41) is provided with threaded body, long tube body (41) upper end seals by being spun on threaded body by sealing cap (43).
4. underground structure dewatering well sealing water device according to claim 3, it is characterized in that: the internal ring portion of described annular slab (42) and the outer tube wall of long tube body (41) are fixed by welded seal, the outer portion of described annular slab (42) and the inwall of dewatering well (2) are fixed by welded seal.
5. underground structure dewatering well sealing water device according to claim 4, is characterized in that: described the first sealant (6) and the second sealant (7) are layer of concrete.
6. underground structure dewatering well sealing water device according to claim 5, is characterized in that: described pressing plate (52) horizontally outward extends.
7. underground structure dewatering well sealing water device according to claim 6, is characterized in that: by fill concrete layer between the external surface of described sleeve (51) and dewatering well indwelling mouth (3), makes the two be sealed and matched.
8. underground structure dewatering well sealing water device according to claim 7, is characterized in that: described sleeve (51) and pressing plate (52) are integrated part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335373.4U CN204662467U (en) | 2015-05-22 | 2015-05-22 | Underground structure dewatering well sealing water device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335373.4U CN204662467U (en) | 2015-05-22 | 2015-05-22 | Underground structure dewatering well sealing water device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204662467U true CN204662467U (en) | 2015-09-23 |
Family
ID=54132863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335373.4U Expired - Fee Related CN204662467U (en) | 2015-05-22 | 2015-05-22 | Underground structure dewatering well sealing water device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204662467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193077A (en) * | 2016-08-26 | 2016-12-07 | 陕西建工机械施工集团有限公司 | A kind of steel cylinder formula dewatering well closes utensil and enclosure method |
| CN114922213A (en) * | 2022-06-08 | 2022-08-19 | 中冶建工集团有限公司 | Pressure-bearing dewatering well and well sealing construction method thereof |
-
2015
- 2015-05-22 CN CN201520335373.4U patent/CN204662467U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193077A (en) * | 2016-08-26 | 2016-12-07 | 陕西建工机械施工集团有限公司 | A kind of steel cylinder formula dewatering well closes utensil and enclosure method |
| CN106193077B (en) * | 2016-08-26 | 2018-12-18 | 陕西建工机械施工集团有限公司 | A kind of steel cylinder formula dewatering well closing utensil and enclosure method |
| CN114922213A (en) * | 2022-06-08 | 2022-08-19 | 中冶建工集团有限公司 | Pressure-bearing dewatering well and well sealing construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20180522 |