CN113216145A - Vacuum preloading construction method for steel sheet pile combined clay sealing wall - Google Patents
Vacuum preloading construction method for steel sheet pile combined clay sealing wall Download PDFInfo
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- CN113216145A CN113216145A CN202110513758.5A CN202110513758A CN113216145A CN 113216145 A CN113216145 A CN 113216145A CN 202110513758 A CN202110513758 A CN 202110513758A CN 113216145 A CN113216145 A CN 113216145A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
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- Composite Materials (AREA)
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- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
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Abstract
The application relates to a steel sheet pile combined clay sealing wall vacuum preloading construction method, which comprises the following steps: s1, piling the clay stirring pile sealing wall; s2, embedding the steel sheet piles into the ground, wherein the top ends of the steel sheet piles protrude out of the ground; s3, embedding the plastic drainage plates in the foundation, wherein the top end of the steel sheet pile, which protrudes out of the ground, faces the side face of the foundation and is provided with a through hole, and the through hole extends to the top face of the steel sheet pile; penetrating the end part of the plastic drainage plate on the ground into the through hole and extending to the top surface of the steel sheet pile; s4, mounting the fixing piece; s5, digging a sealing ditch; s6, laying a sealing film; s7, installing a drain pipe; s8, installing a vacuumizing device; and S9, construction is carried out. Through setting up opening, seal groove, mounting, sealing washer and sealing strip, make plastics drain bar and drain pipe connection convenient, connect the leakproofness good, be favorable to forming great vacuum under the sealed membrane, make foundation intensity raising effect better.
Description
Technical Field
The application relates to the field of soft foundation treatment technology, in particular to a steel sheet pile and clay combined sealing wall vacuum preloading construction method.
Background
The vacuum preloading drainage consolidation method is an economical and practical soft soil foundation treatment method and is widely applied to soft soil consolidation areas.
The vacuum prepressing technology is that plastic drainage boards are first driven into the foundation, netted drainage pipes are laid on soft foundation, the plastic drainage boards are connected to the drainage pipes to form horizontal passage, airtight sealing film is then covered on the surface of the soft foundation, and vacuum pumping device is used to pump air inside the drainage pipes. Air and moisture in the sealing film and the soft foundation are discharged, so that the density of the foundation is increased, the foundation is quickly solidified, and the effect of improving the strength of the foundation is achieved.
The effectiveness of vacuum preloading for consolidating soft soil foundations is largely dependent on the vacuum level of the foundation below the sealing membrane being maintained at a certain pressure.
Because of the ground plane is great usually, the quantity of plastics drain bar installation is also more, plastics drain bar passes through the manual work with the drain pipe and is connected, construction work volume is big, make the workman be difficult to accomplish the better sealing connection with the junction of every plastics drain bar and drain pipe, the poor problem of leakproofness appears easily in plastics drain bar and drain pipe junction, it is less to make the vacuum pressure under the sealed membrane, air and moisture exhaust effect in the soil foundation lead to are not good, thereby influence soft soil foundation and consolidate the effect.
Disclosure of Invention
In order to improve the air and moisture discharging effect in the soil foundation, the application provides a steel sheet pile combines clay sealing wall vacuum preloading construction method.
The application provides a steel sheet pile combines clay sealing wall vacuum preloading construction method adopts following technical scheme:
a steel sheet pile combined clay sealing wall vacuum preloading construction method comprises the following steps:
s1, piling the clay stirring pile sealing wall, wherein the clay stirring pile sealing wall is arranged around the periphery of the foundation;
s2, embedding a steel sheet pile, and after the step S1, piling the steel sheet pile into the ground along the extending direction of the clay mixing pile sealing wall, wherein the top end of the steel sheet pile protrudes out of the ground;
s3, embedding the plastic drainage plates in the foundation, wherein the top end of the steel plate pile, which protrudes out of the ground, is provided with a through hole facing the side face of the foundation, and the through hole extends to the top face of the steel plate pile; penetrating the end part of the plastic drainage plate on the ground into the through hole and extending the end part to the top surface of the steel sheet pile;
s4, mounting a fixing piece, wherein the fixing piece is arranged at the top of the steel sheet pile; the bottom of the fixing piece is provided with a fixing groove for accommodating the top of the steel sheet pile, when the fixing piece is installed on the top of the steel sheet pile, the top of the plastic drainage plate is located in the fixing groove, the side wall of the fixing groove is provided with a sealing ring, and the inner ring of the sealing ring is used for tightly abutting against the top end of the steel sheet pile;
s5, digging a sealing groove, wherein the sealing groove is dug in the circumferential direction of the top end, protruding out of the ground, of the steel sheet pile, and is positioned on one side, away from the foundation, of the steel sheet pile;
s6, laying a sealing film, covering the sealing film on the top surfaces of the foundation and the steel sheet piles, wherein the circumferential edge of the sealing film is positioned in a sealing ditch, and filling fillers into the ditch to compact and fix the sealing film;
s7, installing a drain pipe, connecting a plurality of drain pipes to the top surface of the fixing piece, wherein the drain pipes are communicated with the fixing grooves;
s8, installing a vacuumizing device, connecting a main pipeline to drain pipes, communicating a plurality of drain pipes with the main pipeline, and connecting the vacuumizing device with the main pipeline;
and S9, starting the vacuumizing device to discharge the air and the moisture in the foundation.
By adopting the technical scheme, the clay stirring pile sealing wall is the most common sealing application mode in the soft soil foundation reinforcement by the vacuum preloading method, but the clay stirring pile sealing wall is a flexible body and is easy to crack under the action of external force, so that cracks are generated, air leakage is generated, and the vacuum degree cannot be ensured. Through adopting the steel sheet pile, make the steel sheet pile support clay stirring stake sealing wall, clay stirring stake sealing wall makes underground earth soft because of stirring, makes the steel sheet pile conveniently squeeze into the ground end, and the steel sheet pile leakproofness is good simultaneously to improve the leakproofness around the ground.
After the plastic drainage plate is buried underground in the ground, the opening is passed with the plastic drainage plate top, installs the mounting on the steel sheet pile, and plastic drainage plate top and drain pipe intercommunication this moment, seal membrane and steel sheet pile enclose the ground and establish, and evacuating device loops through trunk line, drain pipe and plastic drainage plate and takes out moisture and air from dipping in the plastic slab in the ground, makes the intensity of ground improve.
During the installation, install the mounting at the steel sheet pile top, and install the sealing ring in the fixed slot, the sealing ring forms sealedly between with steel sheet pile and the fixed slot cell wall, and the cell cavity of fixed slot is sealed promptly. The plastic drainage plate is positioned in the groove cavity of the sealing groove, the drainage pipe is communicated with the sealing groove, namely the top end of the plastic drainage plate is hermetically connected with the drainage pipe through the groove cavity of the sealing groove, on one hand, workers do not need to connect the drainage pipe with the plastic drainage plate one by one, the construction amount of the workers is reduced, and the construction period is shortened; on the other hand, the drain pipe is connected the leakproofness with the plastics drain bar and is good, improves the vacuum pressure under the sealed membrane to improve the air in the soil foundation and the moisture exhaust effect, can improve the reinforcement intensity of ground better.
Optionally, the inlet of the through opening at one side of the steel sheet pile facing the foundation is flush with the top surface of the foundation.
By adopting the technical scheme, when the plastic drainage plate enters the through hole, the bending times of the plastic drainage plate are smaller, so that the inside of the plastic drainage plate is kept smooth, and the vacuum pumping is convenient.
Optionally, the top surface of the steel sheet pile is provided with a ring groove for the fixing piece to be clamped in, and the through opening is located in the middle of the ring groove.
Through adopting above-mentioned technical scheme, install through going into the mounting card annular, the mounting presses on the steel sheet pile through self gravity, need not to adopt the mounting to connect fixedly, makes the mounting installation quick, convenient, further reduction of erection time.
Optionally, a gap is formed between the bottom of the fixing groove and an outlet of the opening located on the top surface of the steel sheet pile.
By adopting the technical scheme, the gap is arranged, so that the drain pipe is conveniently communicated with the plastic drain board on one hand; another convenience, the top surface of plastics drain bar top ability protrusion steel sheet pile, when the evacuation goes on, the ground makes the ground surface height descend because of the discharge of moisture and air, because of the parcel of seal membrane, the ground descends the back, and the steel sheet pile is hugged closely easily to plastics drain bar is dragged downwards, sets up the top surface into protrusion steel sheet pile through setting up plastics drain bar, reserves certain length of dragging, makes plastics drain bar be difficult for pulling downwards and breaks away from the opening after.
Optionally, a partition plate is arranged in the fixing groove, the partition plate partitions the gap to form partition chambers, the partition chambers are at least communicated with one drain pipe, and each partition chamber is at least communicated with one through opening.
By adopting the technical scheme, the inner cavity of the fixing groove is divided into a plurality of separation cavities, and the separation cavities are communicated with each other through the drain pipe. When in vacuum pumping, the vacuum pumping device pumps the plurality of separating cavities through the drainage pipe, thereby uniformly pumping the plastic drainage plate in the through hole and ensuring that the vacuum pumping effect is better.
Optionally, the end part of the partition plate far away from the bottom of the fixed groove is provided with a sealing strip, and the sealing strip is used for tightly abutting against the top surface of the steel sheet pile to form sealing.
By adopting the technical scheme, the partition cavity is sealed by the sealing strip, so that the vacuumizing device has a good vacuumizing effect on the plastic drainage plate.
Optionally, the end portions of the adjacent steel sheet piles are connected, the end portions of the adjacent steel sheet piles connected are provided with clamping grooves and clamping blocks matched with the clamping grooves, and the adjacent steel sheet piles enter the clamping grooves to be connected through the clamping blocks in a clamped mode.
Through adopting above-mentioned technical scheme, through the end connection of joint piece with two adjacent steel sheet piles with the draw-in groove cooperation, make two steel sheet piles connect conveniently.
Optionally, the clamping groove is provided with a water-swelling water stop strip in contact with water in the abutting mode of the clamping block.
Through adopting above-mentioned technical scheme, before the steel sheet pile installation, the water swelling sealing rod does not absorb water the inflation state, makes things convenient for burying underground of adjacent steel sheet pile. After the installation is finished, the water-swelling water stop rod capable of swelling when encountering underground water generates 2-3 times of swelling deformation to generate huge contact pressure, so that air and moisture outside the foundation are effectively isolated from leaking from the joint of two adjacent steel sheet piles, a good sealing effect is achieved, and the vacuum degree of the foundation below the sealing film is good.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the through hole, the sealing groove and the fixing piece, a worker can conveniently connect the drain pipe with the plastic drain board, and the tightness between the drain pipe and the plastic drain board is good;
2. through the arrangement of the gap, a certain pulling length can be reserved in the gap of the plastic drainage plate, so that the plastic drainage plate is not easy to separate from the through hole during vacuumizing;
3. through setting up the compartment, make evacuating device better to the evacuation effect of plastics drain bar.
Drawings
Fig. 1 is an overall schematic diagram of the construction of the embodiment of the present application.
Fig. 2 is a cross-sectional view at a-a of fig. 1.
Fig. 3 is an exploded view of the embodiment.
Fig. 4 is an enlarged view of fig. 3 at B, mainly illustrating the structure of the joint of the steel sheet piles.
Fig. 5 is an enlarged view at C of fig. 2.
Fig. 6 is a schematic structural view of a plastic drain board.
Fig. 7 is a cross-sectional view at D-D of fig. 1.
Fig. 8 is an enlarged view of fig. 7 at E, mainly showing the structure of the partition plate and the weather strip.
Description of reference numerals: 1. sealing the wall by using a clay stirring pile; 11. a foundation; 2. steel sheet piles; 21. a card slot; 22. a clamping block; 23. a water-swelling sealing strip when meeting water; 24. a port; 241. a penetration opening; 242. a penetration port; 2421. a seal ring; 3. a plastic drain board; 31. a support layer; 32. a filter layer; 4. a fixing member; 41. fixing grooves; 411. a seal ring; 42. a partition plate; 421. a separation chamber; 422. a sealing strip; 5. a ring groove; 6. sealing the trench; 61. a filler; 7. a sealing film; 8. a drain pipe; 9. a vacuum pumping device; 91. a main pipeline.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses a steel sheet pile combined clay sealing wall vacuum preloading construction method. Referring to fig. 1 and 2, the vacuum preloading construction method of the steel sheet pile 2 combined clay mixing pile sealing wall 1 includes the following steps:
and S1, piling the clay mixing pile sealing wall 1, and piling the foundation 11 in the circumferential direction by using a mixing pile machine through mud to form the clay mixing pile sealing wall 1.
Referring to fig. 3, 4 and S2, the steel sheet piles 2 are buried, a plurality of steel sheet piles 2 are driven by a vibration hammer along the extending direction of the clay mixing pile sealing wall 1 within 1 day after the step S1, a clamping groove 21 and a clamping block 22 matched with the clamping groove 21 are arranged at the connecting end of two adjacent steel sheet piles 2, the clamping groove 21 is arranged at the end of one steel sheet pile 2, the clamping block 22 is integrally formed at the end of the other steel sheet pile 2, and the two adjacent steel sheet piles 2 are clamped into the clamping groove 21 through the clamping block 22 to form connection.
Referring to fig. 2 and 4, a water-swelling sealing strip 23 is fixed to a position where the latch 22 abuts against the latch groove 21. Two adjacent steel sheet piles 2 bury underground after, make through groundwater and meet water inflation sealing rod 23 volume inflation to make two adjacent steel sheet piles 2 junctions form sealedly, steel sheet pile 2 encloses ground 11 sealedly and establishes.
Referring to fig. 2 and 5, the top end of the steel sheet pile 2 protrudes 3-10cm from the surface of the foundation 11, in the embodiment, the top end of the steel sheet pile 2 protrudes 8cm from the surface of the foundation 11, a through hole 24 is formed in one side of the steel sheet pile 2 facing the foundation 11, and the through hole 24 extends to and penetrates through the top surface of the steel sheet pile 2. A plurality of through openings 24 are provided, and the through openings 24 are provided on the steel sheet pile 2 along the circumferential direction of the foundation 11.
Referring to fig. 2 and 5, S3, the plastic drainage plate 3 is buried in the foundation 11 by a plastic drainage plate inserting machine, and the top end of the plastic drainage plate 3 is inserted into the through hole 24. The side of the steel sheet pile 2 facing the foundation 11 of the through opening 24 is a penetration opening 241 for the plastic drainage plate 3 to enter, and the top surface of the steel sheet pile 2 of the through opening 24 is a penetration opening 242. The height of the penetrating port 241 is flush with the top surface of the foundation 11, a sealing ring 2421 is fixed on the inner wall of the penetrating port 242, and the inner ring of the sealing ring 2421 is abutted against the outer wall of the plastic drainage plate 3.
Referring to fig. 2 and 6, the plastic drainage plate 3 includes a support layer 31 and a filter layer 32 coated on the support layer 31; the supporting layer 31 is an extrusion-molded plastic core plate, the plastic core plate is a wave-shaped plate, the filtering layer 32 is textile cloth, and moisture and air in the foundation 11 enter the plastic drainage plate 3 through the filtering layer 32
Referring to fig. 5, S4, installing a fixing element 4, where the fixing element 4 is installed on the top surface of the steel sheet pile 2, and the top surface of the steel sheet pile 2 is provided with a ring groove 5; fixing member 4 is the cuboid form, and fixed slot 41 has been seted up to fixing member 4 bottom, and in fixing member 4 got into annular 5 along the peripheral edge joint of fixed slot 41 notch, was fixed with sealing ring 411 on the groove lateral wall of fixed slot 41, and the groove wall that sealing ring 411 butt annular 5 formed sealedly, wears out mouth 242 and fixed slot 41 intercommunication.
Referring to fig. 5, the bottom of the fixing member 4 is supported in the ring groove 5, so that a gap is formed between the bottom of the fixing groove 41 and the top surface of the steel sheet pile 2, a plurality of partition plates 42 are fixed in the fixing groove 41 at regular intervals, the gap is divided by the partition plates 42 to form a plurality of divided chambers 421, and the top end of the plastic drainage plate 3 protrudes out of the top surface of the steel sheet pile 2 and is located in the divided chambers 421.
Referring to fig. 7 and 8, the end of the partition plate 42 facing the steel sheet pile 2 is fixed with a sealing strip 422, the fixing member 4 presses the sealing strip 422 against the steel sheet pile 2 by its own weight, and the outlet 242 is in one-to-one communication with the partition chamber 421.
Referring to fig. 7 and 8, and S5, the sealing trench 6 is dug along the side of the steel sheet pile 2 away from the foundation 11, the depth of the sealing trench 6 is 1m, and the sealing trench 6 extends along the circumferential direction of the steel sheet pile 2.
Referring to fig. 7, 8 and S6, laying a sealing film 7, wherein the sealing film 7 is a polyvinyl chloride film, the sealing film 7 is laid on the foundation 11 and the top surface of the steel sheet pile 2, and the sealing film 7 is laid by 3 layers, so that the sealing performance is improved by the multi-layer laying, the sealing film 7 is prevented from being damaged due to the fact that workers work on the sealing film 7, and the sealing performance of the sealing film 7 is guaranteed. The circumferential edge of the sealing film 7 extends into the sealing ditch 6, the sealing ditch 6 is filled with the filler 61 to compact and fix the sealing film 7, and the filler 61 is soil dug out by digging the sealing ditch 6, so that the sealing film is convenient and easy to obtain.
Referring to fig. 1, 5 and S7, the drain pipe 8 is installed by connecting the drain pipe 8 to the top surface of the fixing member 4, and the drain pipe 8 is in one-to-one communication with the separation chamber 421, that is, the drain pipe 8 is in one-to-one communication with the top end of the plastic drain board 3.
Referring to fig. 1, S8, the installation of evacuating device 9 is connected with the trunk line 91 that the level set up on the drain pipe 8, and the tip that mounting 4 was kept away from to a plurality of drain pipes 8 all communicates with trunk line 91, and evacuating device 9 is the jet vacuum pump, and the jet vacuum pump is provided with two, and the induction port and the trunk line 91 of jet vacuum pump are connected.
Referring to fig. 2 and 5, S9, the construction is performed by turning on the power supply of the jet vacuum pump, which sucks the inside of the foundation 11 through the main pipe 91, the drain pipe 8, and the plastic drain plate 3 in order to generate a negative pressure under the sealing film 7, thereby discharging the air and moisture in the foundation 11.
The implementation principle of the vacuum preloading construction method for the steel sheet pile combined clay sealing wall in the embodiment of the application is as follows: steel sheet pile 2 and clay stirring stake sealing wall 1 enclose foundation 11 and establish, adopt seal membrane 7 cladding at 11 top surfaces of foundation, adopt jet vacuum pump to pump 11 insides of foundation, make atmospheric pressure compress tightly foundation 11 to improve foundation 11's intensity.
Through wearing to establish plastics drain pipe 8 in opening 24, the rethread mounting 4 makes drain pipe 8 and opening 24 intercommunication to make plastics drain bar 3 and drain pipe 8 communicate. Because of mounting 4 is connected with steel sheet pile 2 and only needs to adopt the mode of pressing to make mounting 4 joint in annular 5, make mounting 4 simple to operate, and make the compartment 421 form sealedly through setting up sealing ring 411, sealing strip 422. Make plastics drain bar 3 need not to be connected with drain pipe 8 through the workman one by one to the leakproofness of drain pipe 8 with plastics drain bar 3 has been improved, thereby is favorable to forming great vacuum under seal membrane 7, makes 11 intensity improvement effects of ground better.
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. A steel sheet pile combines clay sealing wall vacuum preloading construction method which characterized in that: the method comprises the following steps:
s1, piling the clay stirring pile sealing wall (1), wherein the clay stirring pile sealing wall (1) is arranged around the periphery of the foundation (11);
s2, burying the steel sheet pile (2), and after the step S1, burying the steel sheet pile (2) into the ground bottom along the extending direction of the clay mixing pile sealing wall (1), wherein the top end of the steel sheet pile (2) protrudes out of the ground;
s3, burying the plastic drainage plate (3) in a foundation (11), wherein a through hole (24) is formed in the top end, protruding out of the ground, of the steel plate pile (2) and faces the side face of the foundation (11), and the through hole (24) extends to the top face of the steel plate pile (2); the end part, located on the ground, of the plastic drainage plate (3) is arranged in the through hole (24) in a penetrating mode and extends to the top face of the steel sheet pile (2);
s4, mounting a fixing piece (4), wherein the fixing piece (4) is arranged at the top of the steel sheet pile (2); the bottom of the fixing piece (4) is provided with a fixing groove (41) for accommodating the top of the steel sheet pile (2), when the fixing piece (4) is installed on the top surface of the steel sheet pile (2), the top of the plastic drainage plate (3) is located in the fixing groove (41), the side wall of the fixing groove (41) is provided with a sealing ring (411), and the inner ring of the sealing ring (411) is used for tightly abutting against the top end of the steel sheet pile (2);
s5, digging a sealing ditch (6), digging the sealing ditch (6) in the circumferential direction of the top end of the steel sheet pile (2) protruding out of the ground, and positioning the sealing ditch (6) at one side of the steel sheet pile (2) departing from the foundation (11);
s6, laying a sealing film (7), covering the sealing film (7) on the foundation (11) and the top surface of the steel sheet pile (2), wherein the circumferential edge of the sealing film (7) is positioned in a sealing ditch (6), and filling a filler (61) in the ditch to compact and fix the sealing film (7);
s7, installing a drain pipe (8), connecting a plurality of drain pipes (8) to the top surface of the fixing piece (4), wherein the drain pipes (8) are communicated with the fixing groove (41);
s8, installing a vacuumizing device (9), connecting a main pipeline (91) on the drainage pipes (8), communicating a plurality of drainage pipes (8) with the main pipeline (91), and connecting the vacuumizing device (9) with the main pipeline (91);
and S9, starting the vacuum extractor (9) to discharge the air and the moisture in the foundation (11).
2. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 1, characterized in that: the through opening (24) is located the import of steel sheet pile (2) towards ground (11) one side and is level with ground (11) top surface.
3. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 1, characterized in that: the steel sheet pile (2) top surface is provided with annular (5) that supply mounting (4) card to go into, opening (24) are located annular (5) middle part.
4. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 2, characterized in that: and a gap is formed between the groove bottom of the fixing groove (41) and the outlet of the through opening (24) positioned on the top surface of the steel sheet pile (2).
5. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 4, characterized in that: the fixing groove (41) is internally provided with a partition plate (42), the partition plate (42) partitions the gap to form a plurality of partition cavities (421), the partition cavities (421) are at least communicated with one drain pipe (8), and each partition cavity (421) is at least communicated with one through hole (24).
6. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 5, characterized in that: the end part of the partition plate (42) far away from the bottom of the fixed groove (41) is provided with a sealing strip (422), and the sealing strip (422) is used for tightly abutting against the top surface of the steel sheet pile (2) to form sealing.
7. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 1, characterized in that: adjacent steel sheet pile (2) end connection, adjacent the tip that steel sheet pile (2) are connected is provided with draw-in groove (21) and with draw-in groove (21) complex fixture block (22), adjacent steel sheet pile (2) get into draw-in groove (21) through fixture block (22) joint and connect.
8. The steel sheet pile combined clay sealing wall vacuum preloading construction method as claimed in claim 7, characterized in that: and a water swelling water stop strip (23) is arranged at the butt joint of the clamping groove (21) and the clamping block (22).
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| CN202110513758.5A CN113216145B (en) | 2021-05-12 | 2021-05-12 | Vacuum preloading construction method for steel sheet pile combined clay sealing wall |
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| CN202110513758.5A CN113216145B (en) | 2021-05-12 | 2021-05-12 | Vacuum preloading construction method for steel sheet pile combined clay sealing wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117868157A (en) * | 2024-03-11 | 2024-04-12 | 中建八局第四建设有限公司 | Building foundation pit drainage structure |
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| CN117868157B (en) * | 2024-03-11 | 2024-05-28 | 中建八局第四建设有限公司 | Building foundation pit drainage structure |
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| CN113216145B (en) | 2022-07-29 |
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