CN109024718B - Foundation pit horizontal back cover water-resisting test device and method - Google Patents
Foundation pit horizontal back cover water-resisting test device and method Download PDFInfo
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- CN109024718B CN109024718B CN201811077788.0A CN201811077788A CN109024718B CN 109024718 B CN109024718 B CN 109024718B CN 201811077788 A CN201811077788 A CN 201811077788A CN 109024718 B CN109024718 B CN 109024718B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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Abstract
The invention discloses a foundation pit horizontal back cover water-resisting test device and method, which comprises a test box arranged on the upper side of a base, wherein the test box is a cuboid with a hollow inner part, a plurality of ground feet are fixedly connected between the lower side wall of the test box and the upper side wall of the base, a plurality of rollers are arranged on the lower side wall of the base, a back cover plate is arranged in the middle of the test box, a clamping mechanism is arranged between the back cover plate and the inner wall of the test box, a top cover is arranged at the top of the test box, a fixing mechanism is arranged at the inner top of the test box, a partition plate is fixedly connected on the inner wall of the inner bottom of the test box, and a mounting opening is formed in the middle of the partition. Has the advantages that: according to the invention, the water pressure is changed through the water pressure test pump, the position of the water outlet is changed through the electric telescopic rod, and the water-resisting performance of the sealing bottom plate is subjected to combined analysis through the combination of the change of various variables, so that the water-resisting performance test of the sealing bottom plate is more accurate.
Description
Technical Field
The invention relates to the technical field of foundation pit horizontal bottom sealing, in particular to a foundation pit horizontal bottom sealing water-resisting test device and method.
Background
The bottom sealing measure of the independent foundation pit is to use a specified concrete cushion layer, so that the supporting layer is prevented from being exposed to atmosphere and muddy water for a long time before foundation pouring, is convenient to clean, protects the pile foundation, prevents the supporting layer from being exposed to atmosphere and rock formation from weathering for a long time before the pile foundation pouring, and is easy to remove water immersion.
Consequently generally adopt horizontal back cover water proof test device to carry out the water-resistant pressure detection of back cover at present, guarantee the compressive property of back cover, present test device generally adopts and lays the soil layer inside the box, at the fixed back cover in the middle part of soil layer, the external pressure boost water pressure of rethread, carry out the bottom of pouring into the external rivers into the box, change through hydraulic size and back cover, carry out the test detection of back cover quality, but only can not be applicable to the difference of the infiltration position of reality normal water through hydraulic change, lead to the inaccuracy of test result.
Disclosure of Invention
The invention aims to solve the problems in the background technology and provides a foundation pit horizontal back cover water-resisting test device and a foundation pit horizontal back cover water-resisting test method.
In order to achieve the purpose, the invention adopts the following technical scheme: a foundation pit horizontal back cover water-proof test device comprises a test box arranged on the upper side of a base, wherein the test box is a cuboid with a hollow inner part, a plurality of ground feet are fixedly connected between the lower side wall of the test box and the upper side wall of the base, a plurality of rollers are installed on the lower side wall of the base, a back cover plate is arranged in the middle of the test box, a clamping mechanism is arranged between the back cover plate and the inner wall of the test box, a top cover is arranged at the top of the test box, a fixing mechanism is arranged at the inner top of the test box, a partition plate is fixedly connected on the inner wall of the inner bottom of the test box, a mounting port is formed in the middle of the partition plate, a water guide pipe with two sealed inner parts and a hollow inner part is slidably connected in the mounting port, an electric telescopic rod is fixedly connected to the upper side wall of the base, a driving end of the electric telescopic rod penetrates through the, the utility model discloses a water pressure test device, including baffle, aqueduct, hose, test box, hose, seal closure plate, the one end outer wall that the aqueduct is located the baffle upside set up two delivery ports with the inside intercommunication of aqueduct on the one end outer wall, the last lateral wall fixedly connected with water pressure test pump of base, the input and the outside water source of water pressure test pump are connected, the output of water pressure test pump is connected with the raceway, the raceway adopts the hose, the one end that water pressure test pump was kept away from to the raceway run through the outer wall of test box extend to the inside of test box and communicate with the inside of aqueduct, be fixed with first manometer and second manometer on the outer wall of test box, the input of first manometer and.
In foretell foundation ditch horizontal back cover water proof test device, every all install the sucking disc on the outer wall of gyro wheel, the last lateral wall of base is fixed with the aspiration pump, the input of aspiration pump passes through the inside intercommunication of a plurality of connecting pipes and a plurality of sucking discs.
In the foundation pit horizontal back cover water proof test device, each dust screen is installed at the junction of connecting pipe and sucking disc.
In foretell horizontal back cover water proof test device of foundation ditch, fixture include two levels set up and with the trapezoidal plate of the inside fixed connection of proof box, every the last lateral wall of trapezoidal plate all rotates and is connected with the grip block, every equal threaded connection has two construction bolts, every on the grip block the last lateral wall of trapezoidal plate all seted up with construction bolt size position assorted screw thread mouth, the both sides that the back cover board is close to the trapezoidal plate all are equipped with outside extension limit, every extend the limit and all be located the trapezoidal plate, and two screw thread mouths that are located on the trapezoidal plate are located the both sides that extend the limit.
In the foundation pit horizontal back cover water proof test device, the inner wall of the mounting opening is fixedly connected with a sliding seal ring, and the inner wall of the sliding seal ring is tightly attached to the outer wall of the aqueduct.
In the foundation pit horizontal back cover water-resisting test device, the fixing mechanism comprises two angle plates fixed on the inner wall of the test box, sockets are formed in the two angle plates, the lower side wall of the top cover is fixedly connected with two inserted rods corresponding to the size and the position of the socket, two fastening bolts are in threaded connection with the outer wall of the test box, and each fastening bolt is screwed into the inside of the test box and abuts against the outer wall of one of the inserted rods.
In foretell foundation ditch horizontal back cover water proof test device, the equal fixedly connected with stiffener in four corners department of proof box, four the stiffener is located the downside of back cover board, every the stiffener is made by marble material.
In foretell foundation ditch horizontal back cover water proof test device, set up the mounting groove with the inside intercommunication of proof box on the outer wall of proof box, install the observation window in the mounting groove, the observation window is located one side of aqueduct, and one side of observation window is equipped with the scale mark.
A foundation pit horizontal back cover water-resisting test method comprises the following steps:
s1, moving the device through the roller, starting the air pump to pump out the air in the sucker after moving to a certain position, and enabling the sucker to be adsorbed on the ground to fix the device;
s2, starting the electric telescopic rod, driving the water guide pipe to move up and down through the change of the driving end of the electric telescopic rod, changing the distance between the water outlet and the sealing bottom plate, and performing tests under different working conditions;
s3, loosening the mounting bolts and the fastening bolts, pulling out the top sealing plate and the bottom sealing plate, filling a soil layer between the partition plate and the trapezoidal plate, tamping, putting the bottom sealing plate into the space, fixing the space by the mounting bolts and the clamping plate, filling the soil layer on the upper part of the bottom sealing plate, and mounting the top sealing plate after tamping;
s4, starting the water pressure test pump, spraying water out through the water outlet, scouring the soil layer and the sealing bottom plate, and adjusting the water pressure of the water pressure test pump until the sealing bottom plate is damaged;
and S5, the pressure of the soil layer on the upper side and the lower side of the sealing plate is monitored through the first pressure gauge and the second pressure gauge, and when the readings on the first pressure gauge and the second pressure gauge are equal, the sealing plate is damaged.
Compared with the prior art, this horizontal end sealing water proof test device of foundation pit easy operation, design scientific and reasonable, concrete advantage lies in:
1. the method comprises the following steps of arranging trapezoidal plates, clamping plates, mounting bolts, extending edges, threaded openings and a sealing bottom plate, placing the sealing bottom plate on the two trapezoidal plates, rotating the clamping plates to be attached to the sealing bottom plate, screwing the mounting bolts into the threaded openings to fix the clamping plates, and thus fixing the sealing bottom plate is completed, and the mounting and dismounting are convenient;
2. the electric telescopic rod, the water guide pipe and the water outlet are arranged, the water guide pipe is driven to move up and down through the expansion of the driving end of the electric telescopic rod, the distance between the water outlet and the sealing bottom plate is changed, multiple tests with different working conditions are carried out, multiple sampling analysis is carried out on the water-resisting performance of the sealing bottom plate, and the performance detection is more accurate;
3. the hydraulic pressure testing pump, the first pressure gauge and the second pressure gauge are arranged, water flows with different hydraulic pressures are ejected by adjusting the pressure of the hydraulic pressure testing pump, and when the pressure displayed by the first pressure gauge and the pressure displayed by the second pressure gauge are consistent, the sealing bottom plate is damaged, so that the water pressure bearing capacity of the sealing bottom plate is detected;
4. set up gyro wheel, sucking disc and aspiration pump, make things convenient for the holistic removal of device through the gyro wheel, remove to a certain department after, take out the gas in the sucking disc through the aspiration pump, make the sucking disc adsorb subaerial, make the device wholly fix, make things convenient for going on of follow-up detection achievement.
In conclusion, the water pressure testing pump is used for changing the water pressure, the electric telescopic rod is used for changing the position of the water outlet, and the water-resisting performance of the sealing bottom plate is combined and analyzed through the combination of the change of various variables, so that the water-resisting performance test of the sealing bottom plate is more accurate.
Drawings
Fig. 1 is a schematic structural diagram of a foundation pit horizontal back cover water-resisting test device provided by the invention;
FIG. 2 is a top view of a test box in the foundation pit horizontal back cover water-stop test device provided by the invention;
FIG. 3 is a top view of a part of the interior of a test box in the foundation pit horizontal back cover water-stop test device provided by the invention;
FIG. 4 is a top view of a partition board in the foundation pit horizontal back cover water-stop test device provided by the invention;
fig. 5 is an enlarged view of a portion a of fig. 1 according to the present invention.
In the figure: the test box comprises a test box 1, a base 2, rollers 3, suction cups 4, an air pump 5, anchor feet 6, an electric telescopic rod 7, a water guide pipe 8, a water outlet 9, a hydraulic pressure test pump 10, a water delivery pipe 11, a partition plate 12, a bottom sealing plate 13, a trapezoidal plate 14, a clamping plate 15, a mounting bolt 16, a threaded opening 17, an extending edge 18, a top sealing 19, an angle plate 20, an inserted rod 21, a fastening bolt 22, a first pressure gauge 23, a second pressure gauge 24, an observation window 25, a reinforcing rod 26 and a sliding sealing ring 27.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Referring to fig. 1-5, a foundation pit horizontal back cover water-proof test device comprises a test box 1 arranged on the upper side of a base 2, the test box 1 is a cuboid with a hollow interior, a plurality of ground feet 6 are fixedly connected between the lower side wall of the test box 1 and the upper side wall of the base 2, a plurality of rollers 3 are arranged on the lower side wall of the base 2, a suction cup 4 is arranged on the outer wall of each roller 3, an air suction pump 5 is fixed on the upper side wall of the base 2, the input end of the air suction pump 5 is communicated with the interiors of the suction cups 4 through a plurality of connecting pipes, make things convenient for the holistic removal of device through gyro wheel 3, remove to a certain department after, take out the gas in sucking disc 4 through aspiration pump 5, make sucking disc 4 adsorb subaerial, make the device wholly fix, the dust screen is all installed with sucking disc 4 junction to every connecting pipe, sets up the dust screen and can avoid impurity to inhale in the aspiration pump 5 and influence the normal work of aspiration pump 5.
The middle part of proof box 1 is equipped with back cover plate 13, and the equal fixedly connected with stiffener 26 in four corners department of proof box 1, four stiffeners 26 are located back cover plate 13's downside, and every stiffener 26 is made by marble material, strengthens the intensity of proof box 1 corner through stiffener 26, makes and can bear bigger pressure, the more different operating modes of the analysis of being convenient for.
A clamping mechanism is arranged between the back cover plate 13 and the inner wall of the test box 1, the clamping mechanism comprises two trapezoidal plates 14 which are horizontally arranged and fixedly connected with the inside of the test box 1, the upper side wall of each trapezoidal plate 14 is rotatably connected with a clamping plate 15, each clamping plate 15 is in threaded connection with two mounting bolts 16, the upper side wall of each trapezoidal plate 14 is provided with a threaded opening 17 matched with the mounting bolt 16 in size and position, two sides of the back cover plate 13 close to the trapezoidal plates 14 are provided with outward extending edges 18, each extending edge 18 is arranged on the trapezoidal plate 14, the two threaded openings 17 on the trapezoidal plates 14 are arranged on two sides of the extending edges 18, the back cover plate 13 is placed on the two trapezoidal plates 14, the clamping plates 15 are rotated to be attached to the back cover plate 13, the clamping plates 15 are fixed in the threaded openings 17 by screwing the mounting bolts 16, thereby fixing of the back cover plate 13 is completed, and the back cover plate 13 is convenient to install and dismantle, the sealing bottom plate 13 is convenient to replace for carrying out a plurality of times of test analysis, and the test result is more accurate.
The top of proof box 1 is equipped with back cover 19, the interior top of proof box 1 is equipped with fixed establishment, fixed establishment includes two scutches 20 of fixing on the 1 inner wall of proof box, the socket has all been seted up on two scutches 20, two corresponding inserted bars 21 of socket size position of the lower lateral wall fixed connection of back cover 19, threaded connection has two fastening bolt 22 on the outer wall of proof box 1, the inside of every fastening bolt 22 equal screw in proof box 1 offsets tightly with the outer wall of one of them inserted bar 21, back cover 19 inserts through inserted bar 21 and carries on spacingly in the socket, screw in fastening bolt 22 carries out the fixed of inserted bar 21 again, carry out the compaction through the upside soil layer of back cover 19 to back cover plate 13, avoid appearing the fluffy phenomenon of soil layer, influence the testing result.
The inner wall of the inner bottom of the test box 1 is fixedly connected with a partition plate 12, a soil layer is filled between the partition plate 12 and a trapezoidal plate 14 and tamped, then a back cover plate 13 is put in and fixed by a mounting bolt 16 and a clamping plate 15, then the upper part of the back cover plate 13 is filled with the soil layer, and after tamping, a top cover 19 is mounted for compacting.
The installing port has been seted up at the middle part of baffle 12, sliding connection has inside hollow aqueduct 8 of both ends seal in the installing port, fixedly connected with sliding seal 27 on the inner wall of installing port, sliding seal 27's inner wall pastes tightly with aqueduct 8's outer wall mutually, it seals up aqueduct 8 and the junction of installing port to set up sliding seal 27, avoid taking place the condition of water leakage or soil layer leakage, guarantee the accuracy of testing result, the last side wall fixedly connected with electric telescopic handle 7 of base 2, electric telescopic handle 7's drive end runs through the lower side wall of proof box 1 and extends to the inside of proof box 1 and the lower side wall fixed connection of aqueduct 8, change through electric telescopic handle 7 flexible end drives aqueduct 8 and reciprocates.
The outer wall of one end of the water guide pipe 8, which is positioned at the upper side of the partition plate 12, is provided with two water outlets 9 communicated with the inside of the water guide pipe 8, the upper side wall of the base 2 is fixedly connected with a water pressure test pump 10, the input end of the water pressure test pump 10 is connected with an external water source, the output end of the water pressure test pump 10 is connected with a water delivery pipe 11, the water delivery pipe 11 adopts a hose, one end of the water delivery pipe 11, which is far away from the water pressure test pump 10, penetrates through the outer wall of the test box 1, extends to the inside of the test box 1 and is communicated with the inside of the water guide pipe 8, the outer wall of the test box 1 is fixedly provided with a first pressure gauge 23 and a second pressure gauge 24, the input ends of the first pressure gauge 23 and the second pressure gauge 24 are respectively communicated with the upper side and the lower side of the sealing bottom plate, and performing combined analysis to finish the performance detection of the back cover plate 13.
Offer the mounting groove with the inside intercommunication of proof box 1 on the outer wall of proof box 1, install observation window 25 in the mounting groove, observation window 25 is located one side of aqueduct 8, and one side of observation window 25 is equipped with the scale mark, sets up the position that observation window 25 is convenient for observe aqueduct 8 and delivery port 9 to it is more directly perceived to set up the position that the scale mark made delivery port 9, is convenient for combine water pressure to carry out the analysis.
A foundation pit horizontal back cover water-resisting test method comprises the following steps:
s1, moving the device through the roller, starting the air pump to pump out the air in the sucker after moving to a certain position, and enabling the sucker to be adsorbed on the ground to fix the device;
s2, starting the electric telescopic rod, driving the water guide pipe to move up and down through the change of the driving end of the electric telescopic rod, changing the distance between the water outlet and the sealing bottom plate, and performing tests under different working conditions;
s3, loosening the mounting bolts and the fastening bolts, pulling out the top sealing plate and the bottom sealing plate, filling a soil layer between the partition plate and the trapezoidal plate, tamping, putting the bottom sealing plate into the space, fixing the space by the mounting bolts and the clamping plate, filling the soil layer on the upper part of the bottom sealing plate, and mounting the top sealing plate after tamping;
s4, starting the water pressure test pump, spraying water out through the water outlet, scouring the soil layer and the sealing bottom plate, and adjusting the water pressure of the water pressure test pump until the sealing bottom plate is damaged;
and S5, the pressure of the soil layer on the upper side and the lower side of the sealing plate is monitored through the first pressure gauge and the second pressure gauge, and when the readings on the first pressure gauge and the second pressure gauge are equal, the sealing plate is damaged.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
Although the terms of the base 1, the fixed seat 2, the slot 3, the gear box 4, the cylindrical gear 5, the fixed frame 6, the motor 7, the incomplete gear 8, the L-shaped sliding rod 9, the pushing plate 10, the limiting rod 11, the mounting cavity 12, the limiting groove 13, the fixing plate 14, the limiting plate 15, the threaded rod 16, the punching cylinder 17, the tool seat 18, the cutting knife 19, the supporting rod 20, the placing groove 21, the clamping block 22, the pressing rod 23, the connecting rod 24, the piston 25, the connecting plate 26, the triangular reinforcing plate 27, the fixing rod 28, the cavity 29, the mounting seat 30, the sliding groove 31, the suction cup 32, the mounting plate 33, the pushing rod cylinder 34, and the like are used more frequently, the possibility of using other. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (7)
1. The foundation pit horizontal back cover water-resisting test device comprises a test box (1) arranged on the upper side of a base (2), and is characterized in that the test box (1) is a hollow cuboid, a plurality of ground feet (6) are fixedly connected between the lower side wall of the test box (1) and the upper side wall of the base (2), a plurality of rollers (3) are mounted on the lower side wall of the base (2), a back cover plate (13) is arranged in the middle of the test box (1), a clamping mechanism is arranged between the back cover plate (13) and the inner wall of the test box (1), the clamping mechanism comprises two trapezoidal plates (14) which are horizontally arranged and fixedly connected with the inside of the test box (1), each upper side wall of each trapezoidal plate (14) is rotatably connected with a clamping plate (15), and each clamping plate (15) is in threaded connection with two mounting bolts (16), the upper side wall of each trapezoidal plate (14) is provided with a threaded opening (17) matched with the size and the position of a mounting bolt (16), two sides of the sealing bottom plate (13) close to the trapezoidal plates (14) are provided with outward extending edges (18), each extending edge (18) is located on each trapezoidal plate (14), and the two threaded openings (17) located on the trapezoidal plates (14) are located on two sides of each extending edge (18); the top of the test box (1) is provided with a sealing top (19), the inner top of the test box (1) is provided with a fixing mechanism, the fixing mechanism comprises two angle plates (20) fixed on the inner wall of the test box (1), the two angle plates (20) are provided with sockets, the lower side wall of the sealing top (19) is fixedly connected with two inserted rods (21) corresponding to the size and the position of the sockets, the outer wall of the test box (1) is in threaded connection with two fastening bolts (22), and each fastening bolt (22) is screwed into the test box (1) and abuts against the outer wall of one of the inserted rods (21); the inner wall of the inner bottom of the test box (1) is fixedly connected with a partition plate (12), the middle of the partition plate (12) is provided with a mounting opening, the inside of the test box (1) is connected with a hollow aqueduct (8) with two sealed ends in a sliding way in the mounting opening, the upper side wall of the base (2) is fixedly connected with an electric telescopic rod (7), the driving end of the electric telescopic rod (7) penetrates through the lower side wall of the test box (1) and extends to the inside of the test box (1) and is fixedly connected with the lower side wall of the aqueduct (8), the outer wall of one end of the aqueduct (8) positioned on the upper side of the partition plate (12) is provided with two water outlets (9) communicated with the inside of the aqueduct (8), the upper side wall of the base (2) is fixedly connected with a hydraulic pressure test pump (10), the input end of the hydraulic pressure test, the utility model discloses a hydraulic test system, including hydraulic pressure test pump (10), raceway (11), outer wall that the one end of raceway (11) was kept away from water pressure test pump (10) runs through proof box (1) and extends to the inside of proof box (1) and communicate with the inside of aqueduct (8), be fixed with first manometer (23) and second manometer (24) on the outer wall of proof box (1), the input of first manometer (23) and second manometer (24) communicates with the upside and the downside of back cover board (13) respectively.
2. The foundation pit horizontal back cover water-stop test device according to claim 1, wherein each roller (3) is provided with a sucker (4) on the outer wall thereof, the upper side wall of the base (2) is fixed with an air pump (5), and the input end of the air pump (5) is communicated with the insides of the suckers (4) through a plurality of connecting pipes.
3. The foundation pit horizontal back cover water-stop test device according to claim 2, wherein a dust screen is installed at the joint of each connecting pipe and the suction disc (4).
4. The foundation pit horizontal back cover water-resisting test device according to claim 1, characterized in that a sliding seal ring (27) is fixedly connected to the inner wall of the mounting opening, and the inner wall of the sliding seal ring (27) is closely attached to the outer wall of the water guide pipe (8).
5. The foundation pit horizontal back cover water-stop test device according to claim 1, wherein reinforcing rods (26) are fixedly connected to four corners of the test box (1), the four reinforcing rods (26) are located on the lower side of the back cover plate (13), and each reinforcing rod (26) is made of marble material.
6. The foundation pit horizontal back cover water-resisting test device according to claim 1, characterized in that an installation groove communicated with the inside of the test box (1) is formed in the outer wall of the test box (1), an observation window (25) is installed in the installation groove, the observation window (25) is located on one side of the water guide pipe (8), and a scale mark is arranged on one side of the observation window (25).
7. The water-resisting test method of the foundation pit horizontal back cover water-resisting test device according to claim 1, characterized by comprising the following steps:
s1, moving the device through the roller, starting the air pump to pump out the air in the sucker after moving to a certain position, and enabling the sucker to be adsorbed on the ground to fix the device;
s2, starting the electric telescopic rod, driving the water guide pipe to move up and down through the change of the driving end of the electric telescopic rod, changing the distance between the water outlet and the sealing bottom plate, and performing tests under different working conditions;
s3, loosening the mounting bolts and the fastening bolts, pulling out the top sealing plate and the bottom sealing plate, filling a soil layer between the partition plate and the trapezoidal plate, tamping, putting the bottom sealing plate into the space, fixing the space by the mounting bolts and the clamping plate, filling the soil layer on the upper part of the bottom sealing plate, and mounting the top sealing plate after tamping;
s4, starting the water pressure test pump, spraying water out through the water outlet, scouring the soil layer and the sealing bottom plate, and adjusting the water pressure of the water pressure test pump until the sealing bottom plate is damaged;
and S5, the pressure of the soil layer on the upper side and the lower side of the sealing plate is monitored through the first pressure gauge and the second pressure gauge, and when the readings on the first pressure gauge and the second pressure gauge are equal, the sealing plate is damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077788.0A CN109024718B (en) | 2018-09-16 | 2018-09-16 | Foundation pit horizontal back cover water-resisting test device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077788.0A CN109024718B (en) | 2018-09-16 | 2018-09-16 | Foundation pit horizontal back cover water-resisting test device and method |
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| Publication Number | Publication Date |
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| CN109024718A CN109024718A (en) | 2018-12-18 |
| CN109024718B true CN109024718B (en) | 2020-11-10 |
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| CN201811077788.0A Expired - Fee Related CN109024718B (en) | 2018-09-16 | 2018-09-16 | Foundation pit horizontal back cover water-resisting test device and method |
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| CN115094958B (en) * | 2022-06-02 | 2023-05-16 | 北京建工集团有限责任公司 | Layered water pumping detection method for ultra-deep large-diameter high-pressure rotary spraying bottom sealing effect |
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| AU4542297A (en) * | 1996-11-28 | 1998-06-04 | Paterson Instruments Pty Limited | Apparatus for applying and measuring a load |
| CN106706416B (en) * | 2017-02-20 | 2023-07-18 | 河海大学 | Test device for simulating basement bottom plate stress under action of pressurized water and application method |
| CN106978826B (en) * | 2017-04-28 | 2018-11-30 | 浙江科技学院 | A kind of Foundation Pit bottom stability test method containing artesian water stratum |
| CN107202737A (en) * | 2017-05-04 | 2017-09-26 | 同济大学 | A kind of power soil arch model assay systems and method based on transparent native technology |
| CN108344839A (en) * | 2018-04-17 | 2018-07-31 | 中交海峡建设投资有限公司 | A kind of foundation pit Horizontal seals water proof experimental rig and method |
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