CN213952190U - High-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil - Google Patents
High-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil Download PDFInfo
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- CN213952190U CN213952190U CN202023015084.6U CN202023015084U CN213952190U CN 213952190 U CN213952190 U CN 213952190U CN 202023015084 U CN202023015084 U CN 202023015084U CN 213952190 U CN213952190 U CN 213952190U
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Abstract
The utility model relates to a high-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil, including cofferdam and the soft soil layer of setting in the cofferdam, the vertical polylith drain bar of pegging graft in the soft soil layer, the top protrusion of drain bar in soft soil layer, the top of drain bar is provided with the square sleeve, the level is provided with many vacuum branch pipes in the soft soil layer, the square sleeve sealed peg graft in on the outer pipe wall of vacuum branch pipe, the vacuum branch pipe with detachable is provided with between the square sleeve and is used for pressing from both sides tightly the centre gripping subassembly of square sleeve. This application has sound construction's effect.
Description
Technical Field
The application relates to the field of soft soil foundation reinforcement, in particular to a high-efficiency vacuum foundation prepressing reinforcement structure suitable for soft soil.
Background
The vacuum preloading method is that a vertical drainage channel (such as a sand well, a bagged sand well or a plastic drainage plate) is inserted into a soft foundation to be reinforced, then a sand cushion layer is laid on the ground, and then an airtight film is covered on the sand cushion layer. And (2) a vacuum pump or other vacuum means is used for vacuumizing under the membrane to form negative pressure (relative to atmospheric pressure)), the negative pressure is transmitted downwards along the vertical drainage channel to enable the unequal pressure state of the soil body and the vertical drainage channel to be transmitted into the soil body, and under the action of the negative pressure, pore water gradually seeps into the vertical drainage channel to achieve the effects of drainage consolidation and strength increase of the soil body.
A Chinese patent with application number of CN200820143621.5 discloses a double-layer low-level vacuum preloading reinforcing device, which consists of a vacuum pump, a submersible pump, a buffer separating tank, a control valve, a vacuum meter, a vacuum degree detecting head, a hydraulic filling reinforcing layer vacuum pipe network, a soft soil reinforcing layer vacuum pipe network, a settlement mark, an open water overflow port, a pipeline and a gauge; the cofferdam is filled along the boundary of the reinforcing area on a soft soil foundation, a soft soil reinforcing layer is formed in the cofferdam, the soft soil reinforcing layer drainage plates are inserted into the soft soil reinforcing layer at equal intervals and equal lengths, the lower end parts of the soft soil reinforcing layer drainage plates longitudinally penetrate into the soft soil reinforcing layer, the upper end parts of the soft soil reinforcing layer drainage plates are coiled on the outer pipe wall of the soft soil reinforcing layer vacuum branch pipe and are tied up by binding belts to be fixed-phase connected, the soft soil reinforcing layer drainage plates are communicated with the soft soil reinforcing layer vacuum branch pipe through a reverse filter material and water filtering holes, and at least 3 soft soil reinforcing layer drainage plates are arranged on each soft soil reinforcing layer vacuum branch pipe.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the drainage plate and the vacuum branch pipe are fixedly connected through binding of the binding belt, the binding belt is easy to rot when being soaked in water for a long time, the drainage plate is easy to separate from the vacuum branch pipe, and the connecting structure of the drainage plate and the vacuum branch pipe is not good enough, so that improvement is needed.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem that the drain bar breaks away from easily from vacuum branch pipe, this application provides a high-efficient vacuum foundation pre-compaction reinforced structure suitable for soft soil.
The application provides a pair of high-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil adopts following technical scheme:
the utility model provides a high-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil, includes the cofferdam and sets up the soft soil layer in the cofferdam, the vertical polylith drain bar of pegging graft in the soft soil layer, the top protrusion of drain bar in soft soil layer, the top of drain bar is provided with the square sleeve, soft soil in situ level is provided with many vacuum branch pipes, the square sleeve is sealed peg graft in on the outer pipe wall of vacuum branch pipe, the vacuum branch pipe with detachable is provided with between the square sleeve and is used for pressing from both sides tightly the centre gripping subassembly of square sleeve.
Through adopting above-mentioned technical scheme, the square sleeve provides good relation of connection for drain bar and vacuum branch pipe, and square sleeve and vacuum branch pipe are that the leakproofness is pegged graft, the intraformational hole hydroenergy of software passes through drain bar and square sleeve and discharges, and press from both sides tight the connection through the centre gripping subassembly between vacuum branch pipe and the square sleeve, the square sleeve is difficult to break away from the vacuum branch pipe, the firm in connection nature between vacuum branch pipe and the drain bar has effectively been strengthened, and the vacuum branch pipe is fixed through the centre gripping, compare with the ligature is fixed, it is more convenient to install, time saving and labor saving.
Preferably, the clamping assembly comprises a first locking member, a second locking member, two pipe clamps and two plate clamps;
two the cross-section of pipe clamp is half annular shape and cooperation parcel vacuum branch pipe, two the cross-section of plate holder is half square ring shape and cooperation parcel the square sleeve, one the plate holder with one pipe clamp fixed connection, another the plate holder with another pipe clamp fixed connection is, and is a plurality of first retaining member fixed connection is two the pipe clamp, and is a plurality of second retaining member fixed connection is two the plate holder.
Through adopting above-mentioned technical scheme, the pipe clamp of two semicircle rings just can wrap up on the outer wall of vacuum branch pipe, the plate holder of two semicircle ring forms also just can wrap up in the telescopic periphery in side, and pipe clamp and plate holder are fixed connection together, two pipe clamps wrap up the back on vacuum branch pipe through first retaining member, just can also fix the plate holder on vacuum branch pipe, then two plate holders of rethread and second retaining member will be connected with the telescopic drain bar in side and firmly connect on vacuum branch pipe, make both difficult to break away from each other, the structure is more stable, firm.
Preferably, one side of each pipe clamp, which is far away from the plate clamp, is provided with a vertical extension, the first locking part is arranged on the two vertical extensions, the two opposite sides of the plate clamp are provided with horizontal extensions, and the second locking part is arranged on the two horizontal extensions.
Through adopting above-mentioned technical scheme, vertical extension provides better mounted position for first retaining member, and horizontal extension also provides better mounted position for the second retaining member, and vertical extension on two pipe clamps closely laminates fixedly the back each other, and two pipe clamps can be with vacuum branch pipe firmly grasp more, and is same, and the horizontal extension on two plate clamps closely laminates the back, and two plate clamps can be with square sleeve firmly grasp more, have further strengthened the fastness between vacuum branch pipe and the square sleeve.
Preferably, the first locking member and the second locking member are each a plurality of bolt sets.
Through adopting above-mentioned technical scheme, vertical extension on two pipe clamps and the horizontal extension on two plate clamps all are fixed through bolt group, and the mounting means is simple, labour saving and time saving.
Preferably, two circles of first sealing rings are arranged on the vacuum branch pipe, and the two circles of first sealing rings are clamped between the two pipe clamps and the vacuum branch pipe.
Through adopting above-mentioned technical scheme, leakproofness between two first sealing washers can strengthen pipe clamp and the vacuum branch pipe to reinforcing vacuum branch pipe and the square sleeve leakproofness all around.
Preferably, a circle of second sealing ring is arranged on the square sleeve, and the second sealing ring is clamped between the two plate clamps and the square sleeve.
Through adopting above-mentioned technical scheme, the leakproofness between first sealing washer can reinforcing plate holder and the square sleeve has further strengthened the leakproofness around vacuum branch pipe and the square sleeve.
Preferably, three drain plates are provided on each of the vacuum branch pipes.
Through adopting above-mentioned technical scheme, three drain bar is to the interior drainage of a vacuum branch pipe simultaneously, and drainage efficiency is high, can reduce the quantity of vacuum branch pipe moreover, has effectively saved construction material, and the construction is arranged more portably moreover.
Preferably, the first sealing ring and the second sealing ring are both butyl rubber rings.
By adopting the technical scheme, the lateral methyl groups in the butyl rubber molecular chain are densely arranged, and the thermal motion of polymer molecules is limited, so that the air permeability is low, the air tightness is good, and the sealing property between the vacuum branch pipe and the square sleeve is effectively ensured.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the vacuum branch pipe and the drainage plate are connected in a sealing mode through the square sleeve, the clamping assembly is clamped between the vacuum branch pipe and the square sleeve, so that the drainage plate is firmly connected to the vacuum branch pipe, the structure is more stable, and the drainage plate is connected with the vacuum branch pipe in a clamping and fixing mode, so that the installation is more convenient, and time and labor are saved;
2. after the pipe clamps are fixedly connected with the plate clamp, when the two pipe clamps are wrapped on the vacuum branch pipe, the plate clamp can also clamp and fix the square sleeve, so that the drainage plate is firmly connected to the vacuum branch pipe, the structural stability is better, and the installation is more convenient and faster;
3. first sealing washer and second sealing washer can strengthen the leakproofness around vacuum branch pipe and the square sleeve, make be difficult to leak gas, the infiltration between vacuum branch pipe and the square sleeve, sealed effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
FIG. 2 is an exploded view of the clamping assembly with vacuum manifold and square sleeve in the embodiment of the present application.
Description of reference numerals: 1. cofferdam; 2. a soft soil layer; 3. a drain plate; 4. a square sleeve; 5. a vacuum branch pipe; 6. a clamping assembly; 61. a first locking member; 62. a second locking member; 63. a pipe clamp; 631. a vertical extension; 64. a plate clamp; 641. a horizontal extension; 7. a first seal ring; 8. a second seal ring; 9. a water-gas separation tube; 101. a water-gas separation tank; 102. draining pump; 103. a vacuum pump; 104. a sealing strip.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses high-efficient vacuum foundation pre-compaction reinforced structure suitable for soft soil. Referring to fig. 1, the high-efficient vacuum foundation pre-compaction reinforced structure suitable for soft soil includes a round cofferdam 1 that is formed through concrete body pouring, and cofferdam 1 is higher than ground, and cofferdam 1 is filled with the soft soil layer 2 that needs vacuum pre-compaction reinforcement, and soft soil layer 2 is less than the upper surface of cofferdam 1 to prevent that outside water source from getting into in the soft soil layer 2.
There are four rows of drain bars 3 (in other embodiments, the row number of drain bar 3 can also the adaptability increase and decrease) in the vertical grafting in soft soil layer 2, four rows of drain bars 3 are laid along cofferdam 1's length direction interval, each row of drain bar 3 comprises six drain bars 3 that equidistant interval laid (in other embodiments, the quantity of each row of drain bar 3 also can the adaptability increase and decrease), the equal protrusion in soft soil layer 2's of top of each drain bar 3 upper surface, and the top of each drain bar 3 all fixedly connected with a square sleeve 4, square sleeve 4 is preferred to be the plastics material, and can fix through hot pressing involution in advance between square sleeve 4 and the drain bar 3, also can seal bonding through the structural adhesive and fix.
Every three drain bar 3 is a set of in the drain bar 3 of a row, and the square sleeve 4 on each group drain bar 3 all seals jointly and pegs graft a fixed vacuum branch pipe 5, and the both ends of vacuum branch pipe 5 all are encapsulated situation, and two vacuum branch pipes 5 that are linked together with two sets of drain bars 3 in the same row are laid relatively, and vacuum branch pipe 5 of laying relatively all has a moisture separator tube 9 jointly sealing connection, installs a moisture knockout drum 101 on the cofferdam 1, and moisture separator tube 9 is linked together with moisture knockout drum 101.
The drainage pump 102 is installed on the lower portion of the water-gas separation tank 101, the vacuum pump 103 is installed on the upper portion of the water-gas separation tank 101, during construction, the vacuum pump 103 is started, vacuum negative pressure is generated in the water-gas separation tank 101, the vacuum negative pressure is transmitted from the interior of the water-gas separation tank 101 to the interior of the water-gas separation pipe 9, the vacuum branch pipe 5, the drainage plate 3 and the soft soil layer 2, water and air in the soft soil layer 2 are mixed and transmitted from the interior of the soft soil layer 2 to the interior of the drainage plate 3 and the vacuum branch pipe 5 under the action of the vacuum negative pressure, water and gas are separated in the water-gas separation pipe 9 and the water-gas separation tank 101, air on the upper portion of the water-gas separation tank 101 is discharged through the vacuum pump 103, water on the lower portion of the water-gas separation tank 101 is discharged through the drainage pump 102, and therefore pore water in the soft soil layer 2 is discharged, and the purpose of reinforcing the soft soil layer 2 is achieved.
Wherein, in order to strengthen the firm in connection nature between drain bar 3 and the vacuum branch pipe 5, when square sleeve 4 seals up pegging graft in vacuum branch pipe 5, install centre gripping subassembly 6 between vacuum branch pipe 5 and square sleeve 4.
The clamping assembly comprises a first clamping part 61, a second clamping part 62, two pipe clamps 63 and a plate clamp 64, the cross sections of the two pipe clamps 63 are in a semi-circular ring shape and are matched and wrapped on the outer pipe wall of the vacuum branch pipe 5, the cross sections of the two plate clamps 64 are in a semi-square ring shape and are matched and wrapped on the periphery of the square sleeve 4, the plate clamps 64 and the pipe clamps 63 are preferably made of plastic, one plate clamp 64 and one pipe clamp 63 are fixed in an integrated forming mode, the plate clamp 64 is vertically fixed on one side of the axial direction of the pipe clamp 63, the other side of the axial direction of the pipe clamp 63 is integrally formed with a vertical extension part 631, the two pipe clamps 63 are wrapped on the outer wall of the vacuum branch pipe 5, and the two vertical extension parts 631 are mutually attached and then locked by the first clamping part 61.
The other plate clamp 64 and the other pipe clamp 63 are also integrally formed and fixed, the horizontal extension parts 641 are integrally formed on two opposite sides of the plate clamp 64, the two plate clamps 64 are wrapped on the periphery of the square sleeve 4, the two horizontal extension parts 641 on the same side of the two plate clamps 64 are mutually attached and then locked by the second locking parts 62, so that the drainage plate 3 connected to the square sleeve 4 is firmly connected to the vacuum branch pipe 5, the first locking parts 61 and the second locking parts 62 are preferably bolt sets, the number of the first locking parts 61 is three, and the number of the second locking parts 62 is two.
And in the whole soft soil layer 2 vacuum preloading process, the air and pore water in the soft soil layer 2 can be smoothly pumped out only by ensuring the sealing performance of the connection between the pipes, so, two rings of first sealing rings 7 are sleeved on the vacuum branch pipe 5, the two rings of first sealing rings 7 are respectively positioned at two sides of the drainage plate 3, when the two pipe clamps 63 are tightly clamped on the vacuum branch pipe 5 in a wrapping manner, the two first sealing rings 7 are clamped between the inner wall of the pipe clamps 63 and the outer wall of the vacuum branch pipe 5, and meanwhile, the inner side of one vertical extension portion 631 is also fixed with a long-strip-shaped sealing strip 104, so that the sealing performance between the two vertical extension portions 631 is further enhanced.
The square sleeve 4 is sleeved with a circle of second sealing ring 8, when the two plate clamps 64 are wrapped on the square sleeve 4, the second sealing ring 8 is clamped between the inner wall of the two plate clamps 64 and the outer wall of the square sleeve 4, meanwhile, the inner side of the horizontal extension part 641 at two sides of one of the plate clamps 64 is also fixed with another strip-shaped sealing strip 104, so that the periphery of the joint of the square sleeve 4 and the vacuum branch pipe 5 is completely sealed, and the first sealing ring 7, the second sealing ring 8 and the sealing strip 104 are all made of butyl rubber with low air permeability and good air tightness.
The implementation principle of the high-efficient vacuum foundation pre-compaction reinforced structure suitable for soft soil of the embodiment of the application is as follows: after starting vacuum pump 103 and drain pump 102, vacuum branch pipe 5, aqueous vapor separator tube 9, drain bar 3 and vacuum tank just can be with air and the pore water discharge in the soft soil layer 2, thereby play reinforced effect to soft soil layer 2, square sleeve 4 provides good connection relation for drain bar 3 and vacuum branch pipe 5, all through first sealing washer 7 around square sleeve 4 and the vacuum branch pipe 5, second sealing washer 8 and sealing strip 104 seal, and two pipe clamps 63 parcel are behind vacuum branch pipe 5's periphery, two board clamps 64 are also correspondingly wrapped up in square sleeve 4's periphery, make square sleeve 4 firmly connect on vacuum branch pipe 5, square sleeve 4 is difficult to break away from on vacuum branch pipe 5, the firm in connection nature between vacuum branch pipe 5 and the drain bar 3 has effectively been strengthened, and compare with the ligature is fixed, it is more convenient to install, time saving and labor saving.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a high-efficient vacuum foundation pre-compaction reinforced structure suitable for soft soil, includes cofferdam (1) and sets up soft soil layer (2) in cofferdam (1), its characterized in that: the soil layer is characterized in that a plurality of drainage plates (3) are vertically inserted in the soft soil layer (2), the top ends of the drainage plates (3) protrude out of the soft soil layer (2), square sleeves (4) are arranged on the top ends of the drainage plates (3), a plurality of vacuum branch pipes (5) are horizontally arranged in the soft soil layer (2), the square sleeves (4) are hermetically inserted into outer pipe walls of the vacuum branch pipes (5), and the vacuum branch pipes (5) and the square sleeves (4) are detachably provided with clamping assemblies (6) used for clamping the square sleeves (4).
2. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 1, wherein: the clamping assembly (6) comprises a first locking member (61), a second locking member (62), two pipe clamps (63) and two plate clamps (64);
two the cross-section of pipe clamp (63) is half ring shape and cooperation parcel vacuum branch pipe (5), two the cross-section of plate clamp (64) is half square ring shape and cooperation parcel square sleeve (4), one plate clamp (64) and one pipe clamp (63) fixed connection, another plate clamp (64) and another pipe clamp (63) fixed connection, it is a plurality of first retaining member (61) fixed connection is two pipe clamp (63), it is a plurality of second retaining member (62) fixed connection is two plate clamp (64).
3. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 2, wherein: two one side that pipe clamp (63) kept away from plate holder (64) all is provided with vertical extension (631), first retaining member (61) sets up two on vertical extension (631), two the relative both sides of plate holder (64) all are provided with horizontal extension (641), second retaining member (62) set up two on horizontal extension (641).
4. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 3, wherein: the first locking member (61) and the second locking member (62) are each a plurality of bolt sets.
5. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 2, wherein: two circles of first sealing rings (7) are arranged on the vacuum branch pipe (5), and the two circles of first sealing rings (7) are clamped between the pipe clamps (63) and the vacuum branch pipe (5).
6. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 5, wherein: the square sleeve (4) is provided with a circle of second sealing ring (8), and the second sealing ring (8) is clamped between the two plate clamps (64) and the square sleeve (4).
7. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 1, wherein: three drainage plates (3) are arranged on each vacuum branch pipe (5).
8. The efficient vacuum foundation preloading and reinforcing structure for soft soil of claim 6, wherein: the first sealing ring (7) and the second sealing ring (8) are both butyl rubber rings.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023015084.6U CN213952190U (en) | 2020-12-14 | 2020-12-14 | High-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil |
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| CN202023015084.6U CN213952190U (en) | 2020-12-14 | 2020-12-14 | High-efficient vacuum foundation pre-compaction reinforced structure suitable for weak soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032875A (en) * | 2021-12-14 | 2022-02-11 | 广东省源天工程有限公司 | Sand layer sludge overload prepressing device and method for soft soil foundation |
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- 2020-12-14 CN CN202023015084.6U patent/CN213952190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032875A (en) * | 2021-12-14 | 2022-02-11 | 广东省源天工程有限公司 | Sand layer sludge overload prepressing device and method for soft soil foundation |
| CN114032875B (en) * | 2021-12-14 | 2022-06-24 | 广东省源天工程有限公司 | Sand layer sludge overload prepressing device and method for soft soil foundation |
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Effective date of registration: 20230323 Address after: No. 57, Xushu Road, Chengguan Town, Nanzhang County, Xiangyang City, Hubei Province, 441500 Patentee after: Hubei Jinzhang Water Conservancy and Hydropower Engineering Co.,Ltd. Address before: 430040 No.43 (9), Miaoji street, baiquanmao, Dongxihu District, Wuhan City, Hubei Province Patentee before: Hubei Wanquan Construction Engineering Co.,Ltd. |