CN110056016A - A kind of underground continuous wall connector waterproof performance simulation laboratory test system and test method - Google Patents
A kind of underground continuous wall connector waterproof performance simulation laboratory test system and test method Download PDFInfo
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- CN110056016A CN110056016A CN201910193726.4A CN201910193726A CN110056016A CN 110056016 A CN110056016 A CN 110056016A CN 201910193726 A CN201910193726 A CN 201910193726A CN 110056016 A CN110056016 A CN 110056016A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention discloses a kind of underground continuous wall connector waterproof performance simulation laboratory test system and test method, feature be include underground continuous wall connector water resistance test unit and diaphram wall Water Environment Simulation device；Diaphram wall Water Environment Simulation device includes the bored plate in top bottom, bored plate pressurizing device, three classes pressure transmitting plates, attached cavity pressure plate, hydraulic communication pipe, hydraulic pressure ballast and five class pressure transmitting plates；Bored plate pressurizing device by pressurization makes top, and the bored plate in bottom is closely connected is pressed on test unit；Connection is clamped between attached cavity pressure plate and five class pressure transmitting plates and is fixed on test unit, the closed cavity communicated with seam is formed between attached cavity pressure plate and test unit, hydraulic communication pipe one end is connected to attached cavity pressure plate and its other end is connected to hydraulic pressure ballast, advantage be can real simulation diaphram wall military service process water environment feature, experimentation cost is low, Variable Control is simple, the test period is short.
Description
Technical field
The present invention relates to underground engineering performance test fields, more particularly, to a kind of underground continuous wall connector waterproof performance room
Interior simulation experiment system and test method.
Background technique
Diaphram wall is deformed because environment caused by excavation of foundation pit can be effectively controlled greatly in its rigidity, urban track traffic,
It is widely applied in the deep basal pits such as crossing-river channels, skyscraper.Currently, diaphram wall is all made of the mode of framing construction, a width
Between one width wall there are construction joint it is described underground continuous wall connector, applies at the scene, the underground continuous wall connector is past
Toward the risk of leakage point that can become diaphram wall, diaphram wall infiltration can cause underground structure to seep water, to influence structure
Durability, China have a large amount of expense to block for urban track traffic underground structure, underground chamber structural leakage every year.For
The leakage of diaphram wall is reduced, a large amount of experts and scholars are explored, and it is different to be that means have developed based on experience, test
Joint Forms of Underground Continuous Walls.In R&D process, the waterproof performance of connector is examined and is taken based on field test more, room is lacked
Interior rig for testing and method, and field test has that Variable Control is difficult, it is high defect cost of cover occur, the test period is long etc. asks
Topic.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of analog diaphram wall site operation environment, more very
Real construction underground continuous wall connector test unit, the water environment feature of real simulation diaphram wall military service process, experimentation cost
The underground continuous wall connector waterproof performance simulation laboratory test system and test method low, Variable Control is simple, the test period is short.
The technical scheme of the invention to solve the technical problem is: a kind of underground continuous wall connector waterproof performance room
Interior simulation experiment system, including underground continuous wall connector water resistance test unit and diaphram wall Water Environment Simulation device；
The underground continuous wall connector water resistance test unit includes under seam, water expandable waterstop, leading portion construction ground
Diaphragm wall and back segment construction diaphram wall, the seam are located at the leading portion construction diaphram wall and the back segment
It constructs between diaphram wall, several water expandable waterstops is provided in the seam；
The diaphram wall Water Environment Simulation device includes the bored plate in top bottom, bored plate pressurizing device, three classes pressure transmitting plates, band
Cavity pressure plate, hydraulic communication pipe, hydraulic pressure ballast and five class pressure transmitting plates；The bored plate in top bottom is pressed on institute respectively
The top/bottom part for the underground continuous wall connector water resistance test unit stated is central and the bored plate in top bottom is covered on described connect
It sews on, one end of the bored plate pressurizing device is placed on the bored plate in top bottom and its other end is fixed on the three classes and adds
On pressing plate, the bored plate pressurizing device makes the bored plate in top bottom is closely connected to be pressed in the underground continuous wall connector by pressurization
On water resistance test unit, the three classes pressure plate is respectively fixedly disposed at top bottom and the institute of the attached cavity pressure plate
The top bottom for the five class pressure transmitting plates stated；The attached cavity pressure plate is placed in the underground continuous wall connector waterproof performance examination
Verification certificate member side, it is another that the five class pressure transmitting plates are placed in the underground continuous wall connector water resistance test unit
Side clamps connection and is fixed on underground continuous wall connector between the attached cavity pressure plate and the five class pressure transmitting plates
On water resistance test unit, the attached cavity pressure plate and the underground continuous wall connector water resistance test unit it
Between form the closed cavity that communicates with the seam, described hydraulic communication pipe one end is connected to the attached cavity pressure plate
And its other end is connected to the hydraulic pressure ballast.
Preferably, the pilot system further includes underground continuous wall connector unit preparation facilities, and the underground is continuous
Wall joint unit preparation facilities includes that diaphram wall prepares case, diaphram wall locating slot, connector case and connector case locating slot,
The diaphram wall prepares the rectangular box that case is upper end opening；The connector case locating slot is symmetricly set on described
Diaphram wall prepares the middle position of two inner sidewalls of case；The diaphram wall locating slot is symmetricly set on described
Diaphram wall prepares on two inner sidewalls of case and is symmetrically distributed in the connector case locating slot two sides；The connector case
Diaphragm wall located underground is prepared in case and the connector case both ends are inserted into just in the connector case locating slot, and described connects
The sidewall shape of head case is identical as the shape of the seam.
Preferably, the diaphram wall locating slot, the connector case locating slot are rectangular channel, the underground
It is assembled structure that diaphragm wall, which prepares case side wall,.
Preferably, the underground continuous wall connector water resistance test unit further includes that can be placed in the underground continuous
Locating rod in wall locating slot and connect for being sealed with the attached cavity pressure plate or/and the five class pressure transmitting plates
The pre-buried pressing plate connect, the pre-buried pressing plate are arranged four pieces altogether, wherein pre-buried pressing plate described in two pieces be symmetricly set on it is described
The sidewall surfaces of leading portion construction diaphram wall, in addition pre-buried pressing plate described in two pieces is symmetricly set on the back segment construction ground
The sidewall surfaces of lower diaphragm wall；The locating rod is arranged four altogether, wherein described in locating rod described in two is laterally inserted
Leading portion is constructed in continuous underground wall structure and is located on the outside of pre-buried pressing plate described in corresponding side, and in addition locating rod described in two is horizontal
In the back segment construction continuous underground wall structure described to insertion and it is located on the outside of pre-buried pressing plate described in corresponding side.
Preferably, the locating rod and the pre-buried pressing plate are rectangular parallelepiped structure, and the pre-buried pressing plate is mixed
Solidifying soil is fixed on diaphram wall steel reinforcement cage by way of welding before pouring and the pre-buried pressing plate is located at described connect
The two sides position 5-10cm of seam, the locating rod are fixed on diaphram wall steel by way of welding before concreting
On muscle cage and the locating rod is located at the position 5-10cm on the outside of pre-buried pressing plate described in corresponding side.
Preferably, the pilot system further includes that underground continuous wall connector seam prepares control device, the underground
It includes pinboard, the lock for being fixed on the pinboard on diaphram wall that continuous wall connector seam, which prepares control device,
Tight component and the pushing tow component that distance is opened for controlling the seam.
Preferably, the pinboard is " " shape structure and four pieces is arranged altogether, wherein pinboard described in two pieces is symmetrical
The sidewall surfaces of the described leading portion construction diaphram wall are set, and in addition pinboard described in two pieces is symmetricly set on described
The sidewall surfaces of back segment construction diaphram wall；It is provided with an a kind of bolt hole on the pinboard and two are determined for described
The fixed pin hole of position bar insertion, a kind of bolt hole are arranged on the pinboard end；The locking member
Including a kind of pressure transmitting plates and a kind of screw rod, a kind of pressure transmitting plates are located on the pinboard end, described
A kind of screw rod be fastenedly connected by a kind of bolt hole and a kind of pressure transmitting plates；The pushing tow component packet
Two class pressure transmitting plates and telescopic rod are included, the two class pressure transmitting plates are " " shape structure and put down with a kind of screw rod
Row setting, the female parts of the two class pressure transmitting plates are inserted into the transverse part of pinboard described in two sides outwardly, and described stretches
Contracting bar and a kind of screw rod are vertically arranged and the telescopic rod both ends are withstood in the two class pressure transmitting plates, described
Seam the telescopic rod jacking force effect under be gradually flared to required width.
Preferably, the attached cavity pressure plate includes several two classes screw holes, cavity, several two class screw rods, one piece
Four class pressure plates and one piece of four class pressure transmitting plates, the four class pressure transmitting plates are fixed at the attached cavity pressurization
Plate two sides and the four class pressure transmitting plates and the pre-buried pressing plate, which cooperate, to be tightly connected, and the two class screw holes are located at institute
In the four class pressure transmitting plates stated, the four class pressure plates are located at the end of the five class pressure transmitting plates, and described two
Class screw rod sequentially passes through the two class screw holes, the five class pressure transmitting plates are fastenedly connected with the four class pressure plates,
The cavity is located at the centre of the attached cavity pressure plate, the cavity and the underground continuous wall connector waterproofness
The confined space and the cavity and the hydraulic communication Guan Lian that formation is communicated with the seam between energy test unit
It is logical.
Preferably, the bored plate in top bottom is I-shaped template, and the bored plate face in top bottom connects to the diaphram wall
Head water resistance test unit side is adhesive with the hydro-expansive rubber piece of 1-2mm thickness；The peripheral wall of the attached cavity pressure plate
One side towards the underground continuous wall connector water resistance test unit is adhesive with the hydro-expansive rubber of 1-2mm thickness
Piece, the bored plate pressurizing device are small-sized hydraulic jack.
Underground continuous wall connector waterproof is carried out using above-mentioned underground continuous wall connector waterproof performance simulation laboratory test system
The method of performance simulation laboratory test, comprising the following steps:
(1) underground continuous wall connector water resistance test unit style is standby
1. diaphram wall prepares chamber interior wall, release agent is smeared in connector case outer surface；
2. connector case is inserted into connector case locating slot, while being prepared in diaphram wall and pouring into mud in case；
3. the leading portion for being fixed with locating rod, pre-buried pressing plate and water expandable waterstop construction diaphram wall steel reinforcement cage is placed into
Diaphram wall is prepared in case, and locating rod is inserted into diaphram wall locating slot；
4. pouring continuous wall concrete under leading portion construction ground, connector case is extracted behind maintenance-day；
5. the back segment for being fixed with locating rod and pre-buried pressing plate construction diaphram wall steel reinforcement cage is placed into diaphram wall preparation
In case, and locating rod is inserted into diaphram wall locating slot；
6. pouring continuous wall concrete under back segment construction ground, demoulded after conserving day；
7. the underground continuous wall connector water resistance test cell surface that demoulding obtains is carried out polishing processing, removal laitance guarantees
Smooth surface；
(2) the crack preparation of underground continuous wall connector seam
1. the pin hole of pinboard is directed at locating rod, block pinboard is located in underground continuous wall connector water resistance test list
In member, a kind of screw rod is further inserted into a kind of screw hole, then a kind of pressure transmitting plates are aligned and are inserted into a kind of screw rod, tighten one
Bolt on class screw rod makes pinboard step up to be fixed on underground continuous wall connector water resistance test unit；
2. two class pressure transmitting plates of pushing tow component are mounted on pinboard；
3. turning telescopic rod, pinboard is pushed by two class pressure transmitting plates, leading portion construction diaphram wall and back segment is made to construct
Crack is generated between diaphram wall, fracture width is observed using cracking instrument in real time, until fracture width reaches target width, is twisted
Fastening telescopic rod keeps fracture width constant；
(3) underground continuous wall connector waterproof performance is tested
The top and bottom 1. the bored plate in bottom will be pushed up be individually positioned in underground continuous wall connector water resistance test unit；
2. one piece of attached cavity pressure plate is placed in underground continuous wall connector water resistance test unit side, two piece of five class pressure is passed
Pass plate and be placed in the underground continuous wall connector water resistance test unit other side, and by two class screw rod of root by attached cavity pressure plate with
Five class pressure transmitting plates are fixedly clamped on underground continuous wall connector water resistance test unit, and bored plate pressurizing device is placed in top
On the bored plate in bottom, three classes pressure transmitting plates provide reaction force as bored plate pressurizing device back seat, by adding to bored plate pressurizing device
Pressure makes to push up the top bottom that the bored plate in bottom is pressed on underground continuous wall connector water resistance test unit；
3. hydraulic pressure ballast is connected to by hydraulic communication pipe with the cavity of attached cavity pressure plate, setting hydraulic pressure makes water body with pressure
Full of cavity, there is percolating water situation in the seam of underground continuous wall connector water resistance test unit, under persistent pressure observation place
The leakage scenarios of continuous wall connector water resistance test unit record corresponding observing time until not leaking.
Compared with the prior art, the advantages of the present invention are as follows: it is anti-that present invention firstly discloses a kind of underground continuous wall connectors
Aqueous energy simulation laboratory test system and test method, the pilot system and method analog diaphram wall site operation environment
More real construction underground continuous wall connector test unit, while can be different according to test demand manufacture joint seam state simulation
Stratum hydraulic condition, the water environment feature of real simulation diaphram wall military service process pair, experimentation cost is low, Variable Control is simple
List, test period are short.Design has special underground continuous wall connector seam to prepare control device and diaphram wall water environment mould
Quasi- device can prepare different diaphram wall gaping of joints width as needed, while setting can act on according to field condition
Hydraulic pressure on underground continuous wall connector water resistance test unit is realized under specific seam cracking width, specific hydraulic condition
Diaphram wall water resistance test.
Detailed description of the invention
Fig. 1 is the underground continuous wall connector unit style of water resistance test system of the present invention for schematic device；
Fig. 2 is the underground continuous wall connector water resistance test cell schematics of water resistance test system of the present invention；
Fig. 3 is that the underground continuous wall connector seam of water resistance test system of the present invention prepares control device schematic diagram；
Fig. 4 is the pinboard schematic diagram of water resistance test system of the present invention；
Fig. 5 is the diaphram wall Water Environment Simulation schematic device of water resistance test system of the present invention；
Fig. 6 is the attached cavity pressure plate schematic diagram of water resistance test system of the present invention；It is respectively marked in figure as follows:
1 underground continuous wall connector unit preparation facilities, 11 diaphram walls prepare case, 12 diaphram wall locating slots, 13
Connector case, 14 connector case locating slots；
2 underground continuous wall connector water resistance test units, 21 seams, 22 water expandable waterstops, 23 locating rods, 24
Pre-buried pressing plate, 25 leading portions construction diaphram wall, 26 back segments construction diaphram wall；
3 underground continuous wall connector seams prepare control device, 31 pinboards, 311 pin holes, 312 a kind of screw holes, 32 locks
Tight component, 321 a kind of pressure transmitting plates, 322 a kind of screw rods, 33 pushing tow components, 331 2 class pressure transmitting plates, 332 are stretched
Contracting bar；
4 diaphram wall Water Environment Simulation devices, the 41 bored plates in top bottoms, 42 bored plate pressurizing devices, 43 three classes pressure transmitting plates,
44 attached cavity pressure plates, 441 2 class screw holes, 442 cavitys, 443 2 class screw rods, 444 4 class pressure plates, 445 4 class pressures
Power transmission plate, 45 hydraulic communication pipes, 46 hydraulic pressure ballasts, 47 5 class pressure transmitting plates.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Specific embodiment one
As shown in Fig. 1,2,3,5, a kind of underground continuous wall connector waterproof performance simulation laboratory test system, comprising: underground is continuous
Wall joint unit preparation facilities 1, underground continuous wall connector water resistance test unit 2, the preparation control of underground continuous wall connector seam
Device 3 processed and diaphram wall Water Environment Simulation device 4.
As shown in Figure 1, underground continuous wall connector unit preparation facilities 1 includes that prepare case 11, underground continuous for diaphram wall
Wall locating slot 12, connector case 13 and connector case locating slot 14, diaphram wall prepare the rectangular box that case 11 is upper end opening；It connects
Head case locating slot 14 is symmetricly set on the middle position that diaphram wall prepares two inner sidewalls of case 11；Diaphram wall positioning
Slot 12 is symmetricly set on diaphram wall and prepares on two inner sidewalls of case 11 and be symmetrically distributed in 14 two sides of connector case locating slot；
The diaphragm wall located underground of connector case 13 prepares in case 11 and 13 both ends of connector case are inserted into just in connector case locating slot 14, connector case
13 sidewall shape is identical as the shape of seam 21.
In this particular embodiment, diaphram wall locating slot 12, connector case locating slot 14 are rectangular channel, and underground is continuous
It is assembled structure that wall, which prepares 11 side wall of case,.
As shown in Fig. 2, underground continuous wall connector water resistance test unit 2 includes: seam 21, water expandable waterstop
22, locating rod 23, pre-buried pressing plate 24, leading portion construction diaphram wall 25 and back segment construction diaphram wall 26.The knot of seam 21
Configuration formula is determined according to the diaphram wall joint form of design by test scale adjustment；Seam 21 is located under leading portion construction ground
Between diaphragm wall 25 and back segment construction diaphram wall 26, several water expandable waterstops 22, position are provided in seam 21
It sets, quantity, size are determined according to design 21 structure type of seam；Locating rod 23 can be placed in diaphram wall locating slot 12, in advance
Pile things on plate 24 is used to be tightly connected with attached cavity pressure plate 44 or/and five class pressure transmitting plates 47, the pre-buried setting altogether of pressing plate 24
Four pieces, wherein two pieces of pre-buried pressing plates 24 be symmetricly set on leading portion construction diaphram wall 25 sidewall surfaces, in addition two pieces it is pre-buried
Pressing plate 24 is symmetricly set on the sidewall surfaces of back segment construction diaphram wall 26；Locating rod 23 is arranged four altogether, wherein two fixed
In the laterally inserted leading portion of bar 23 construction 25 structure of diaphram wall of position and be located at 24 outside of the pre-buried pressing plate of corresponding side, in addition two it is fixed
In the laterally inserted back segment of bar 23 construction 26 structure of diaphram wall of position and it is located on the outside of the pre-buried pressing plate of corresponding side.
In this particular embodiment, pre-buried pressing plate 24 is located at the 21 two sides position 5-10cm of seam, leads to before concreting
The form for crossing welding is fixed on diaphram wall steel reinforcement cage, and 4 pieces are arranged altogether, and pre-buried pressing plate 24 is steel, smooth surface,
Intensity is high, and four class pressure transmitting plates 445 is allowed to be pressed in the function of having positioning and densification reality above, same five class pressure of the other side
Transmission plate 47 is also just pressed in the effect for playing positioning and densification reality above；Locating rod 23 is located at pre-buried 24 outside 5- of pressing plate
The position 10cm, unilateral side setting two, is fixed on diaphram wall steel reinforcement cage by way of welding before concreting, fixed
Position bar 23 can be placed in diaphram wall locating slot 12 just, and locating rod 23, pre-buried pressing plate 24 are rectangular parallelepiped structure.
Include: pinboard 31, be used for pinboard 31 as shown in figure 3, underground continuous wall connector seam prepares control device 3
The locking member 32 being fixed on diaphram wall and the pushing tow component 33 for the opening distance of control joint 21.
As shown in Figure 3,4, pinboard 31 is " " shape structure and four pieces is arranged altogether, wherein two pieces of pinboards 31 are symmetrical arranged
In the sidewall surfaces of leading portion construction diaphram wall 25, in addition two pieces of pinboards 31 are symmetricly set on back segment construction diaphram wall
26 sidewall surfaces；It is provided with 4 a kind of bolts hole 312 on pinboard 31 and two are inserted into fixed pin hole for locating rod 23
311, a kind of bolt hole 312 is arranged on 31 end of pinboard；Locking member 32 includes a kind of pressure transmitting plates 321 and a kind of spiral shell
Bar 322, a kind of pressure transmitting plates 321 are located on 31 end of pinboard, and a kind of screw rod 322 passes through a kind of bolt hole 312 and one kind
Pressure transmitting plates 321 are fastenedly connected, and a kind of screw rod 322 will be twisted using in bolt rundown process using a kind of pressure transmitting plates 321
Clamp force is evenly transferred on pinboard 31；Pushing tow component 33 includes two class pressure transmitting plates 331 and telescopic rod 332, two class pressure
Transmission plate 331 is " " shape structure and is arranged in parallel with a kind of screw rod 322 that the female parts of two class pressure transmitting plates 331 are outwardly
It is inserted into the transverse part of two sides pinboard 31, telescopic rod 332 is vertically arranged with a kind of screw rod 322 and 332 both ends of telescopic rod withstand on two classes
In pressure transmitting plates 331, seam 21 is gradually flared to required width under the jacking force effect of telescopic rod 332.
As shown in Figure 5,6, diaphram wall Water Environment Simulation device 4 includes the bored plate 41 in top bottom, bored plate pressurizing device 42, three
Class pressure transmitting plates 43, attached cavity pressure plate 44, hydraulic communication pipe 45, hydraulic pressure ballast 46 and five class pressure transmitting plates 47；
The top bored plate 41 in bottom is pressed on the top/bottom part center of underground continuous wall connector water resistance test unit 2 respectively and the top bored plate 41 in bottom covers
It covers in seam 21, one end of bored plate pressurizing device 42 is placed on the bored plate 41 in bottom of top and its other end is fixed on three classes pressure plate 43
On, bored plate pressurizing device 42 by pressurization makes top, and the bored plate 41 in bottom is closely connected is pressed in underground continuous wall connector water resistance test unit 2
On, three classes pressure plate 43 is respectively fixedly disposed at the top bottom at the top bottom and five class pressure transmitting plates 47 of attached cavity pressure plate 44；Band
Cavity pressure plate 44 is placed in 2 side of underground continuous wall connector water resistance test unit, and five class pressure transmitting plates 47 are placed in underground
2 other side of continuous wall connector water resistance test unit, the company of clamping between attached cavity pressure plate 44 and five class pressure transmitting plates 47
It connects and is fixed on underground continuous wall connector water resistance test unit 2, attached cavity pressure plate 44 and underground continuous wall connector are anti-
The closed cavity communicated with seam 21,45 one end of hydraulic communication pipe and attached cavity pressure plate are formed between water performance test unit 2
44 connection and its other end be connected to hydraulic pressure ballast 46.
In this particular embodiment, attached cavity pressure plate 44 includes several two classes screw holes 441, cavity 442, Ruo Gangen
Two 443, one piece four of class screw rod class pressure plates 444 and one piece of four class pressure transmitting plates 445, the fixation of four class pressure transmitting plates 445 are set
It sets in 44 two sides of attached cavity pressure plate and four class pressure transmitting plates 445 and the cooperation sealed connection of pre-buried pressing plate 24, two class screw holes 441
In four class pressure transmitting plates 445, four class pressure plates 444 are located at the end of five class pressure transmitting plates 47, two class screw rods 443 according to
Secondary two class screw holes 441, five class pressure transmitting plates 47 and the four class pressure plates 444 of passing through are fastenedly connected, and cavity 442 adds positioned at attached cavity
The centre of pressing plate 44, formation communicates close with seam 21 between cavity 442 and underground continuous wall connector water resistance test unit 2
It closes space and cavity 442 is connected to hydraulic communication pipe 45.
In this particular embodiment, the top bored plate 41 in bottom is I-shaped template, and the top bored plate 41 in bottom is anti-towards underground continuous wall connector
2 side of water performance test unit is adhesive with the hydro-expansive rubber piece (not shown) of 1-2mm thickness；Attached cavity pressure plate 44
Peripheral wall is adhesive with the hydro-expansive rubber of 1-2mm thickness towards the one side of underground continuous wall connector water resistance test unit 2
Piece (not shown), bored plate pressurizing device 42 are small-sized hydraulic jack.Hydraulic pressure ballast 46 has pressure holding function simultaneously
Being equipped with water pressure control system can control hydraulic pressure, and hydraulic pressure can be entered cavity 442 by hydraulic communication pipe 45 by hydraulic pressure ballast 46
It is interior while guaranteeing consistent in the hydraulic pressure in cavity 442 and hydraulic pressure ballast 46.
Specific embodiment two
It is a kind of to carry out underground using underground continuous wall connector waterproof performance simulation laboratory test system in above-mentioned specific embodiment one
The method of continuous wall connector waterproof performance simulation laboratory test, comprising the following steps:
(1) prepared by underground continuous wall connector water resistance test unit 2
1. diaphram wall prepares 11 inner wall of case, release agent is smeared in 13 outer surface of connector case；
2. connector case 13 is inserted into connector case locating slot 14, while being prepared in case 11 in diaphram wall and pouring into mud；
3. the leading portion construction diaphram wall steel reinforcement cage of locating rod 23, pre-buried pressing plate 24 and water expandable waterstop 22 will be fixed with
It is placed into diaphram wall to prepare in case 11, and locating rod 23 is inserted into diaphram wall locating slot 12；
4. pouring continuous wall concrete under leading portion construction ground, connector case 13 is extracted after maintenance 2-3 days；
5. the back segment for being fixed with locating rod 23 and pre-buried pressing plate 24 construction diaphram wall steel reinforcement cage is placed into diaphram wall
It prepares in case 11, and locating rod 23 is inserted into diaphram wall locating slot 12；
6. pouring continuous wall concrete under back segment construction ground, maintenance demoulds after 7 days；
7. 2 surface of underground continuous wall connector water resistance test unit that demoulding obtains is carried out polishing processing, removal laitance is protected
Demonstrate,prove smooth surface；
(2) the crack preparation of underground continuous wall connector seam
1. the pin hole 311 of pinboard 31 is directed at locating rod 23,4 pieces of pinboards are located in underground continuous wall connector waterproofness
On energy test unit 2, a kind of screw rod 322 is further inserted into a kind of screw hole 312, is then directed at a kind of pressure transmitting plates 321
Be inserted into a kind of screw rod 322, tighten the bolt on a kind of screw rod 322, make pinboard 31 step up to be fixed on underground continuous wall connector it is anti-
On water performance test unit 2；
2. two class pressure transmitting plates 331 of pushing tow component 33 are mounted on pinboard 31；
3. turning telescopic rod 332, pinboard 31 is pushed by two class pressure transmitting plates 331, makes leading portion construction diaphram wall 25
Crack is generated between back segment construction diaphram wall 26, fracture width is observed using cracking instrument in real time, until fracture width reaches
To target width, tightens fixed telescopic rod 332 and keep fracture width constant；
(3) underground continuous wall connector waterproof performance is tested
The top and bottom 1. the bored plate 41 in bottom will be pushed up be individually positioned in underground continuous wall connector water resistance test unit 2；
2. one piece of attached cavity pressure plate 44 is placed in 2 side of underground continuous wall connector water resistance test unit, two piece of five class pressure
Power transmission plate 47 is placed in 2 other side of underground continuous wall connector water resistance test unit, and passes through 8 two class screw rods 443 for band
Cavity pressure plate 44 and five class pressure transmitting plates 47 are fixedly clamped on underground continuous wall connector water resistance test unit 2, will
Bored plate pressurizing device 42 is placed on the bored plate 41 in bottom of top, and three classes pressure transmitting plates 43 provide anti-make as bored 42 back seat of plate pressurizing device
Firmly, by making the top bored plate 41 in bottom be pressed on underground continuous wall connector water resistance test unit the pressurization of bored plate pressurizing device 42
2 top bottom；
3. hydraulic pressure ballast 46 is connected to by hydraulic communication pipe 45 with the cavity 442 of attached cavity pressure plate 44, hydraulic pressure is set
Make water body with pressure full of cavity 442, there is percolating water situation in the seam 21 of underground continuous wall connector water resistance test unit 2,
Persistent pressure observes the leakage scenarios of underground continuous wall connector water resistance test unit 2, until not leaking, record is corresponded to
Observing time.
Above description is not limitation of the present invention, and the present invention is also not limited to the example above.The art it is common
Within the essential scope of the present invention, the variations, modifications, additions or substitutions made also should belong to protection of the invention to technical staff
Range.
Claims (10)
1. a kind of underground continuous wall connector waterproof performance simulation laboratory test system, it is characterised in that: connect including diaphram wall
Head water resistance test unit and diaphram wall Water Environment Simulation device；
The underground continuous wall connector water resistance test unit includes under seam, water expandable waterstop, leading portion construction ground
Diaphragm wall and back segment construction diaphram wall, the seam are located at the leading portion construction diaphram wall and the back segment
It constructs between diaphram wall, several water expandable waterstops is provided in the seam；
The diaphram wall Water Environment Simulation device includes the bored plate in top bottom, bored plate pressurizing device, three classes pressure transmitting plates, band
Cavity pressure plate, hydraulic communication pipe, hydraulic pressure ballast and five class pressure transmitting plates；The bored plate in top bottom is pressed on institute respectively
The top/bottom part for the underground continuous wall connector water resistance test unit stated is central and the bored plate in top bottom is covered on described connect
It sews on, one end of the bored plate pressurizing device is placed on the bored plate in top bottom and its other end is fixed on the three classes and adds
On pressing plate, the bored plate pressurizing device makes the bored plate in top bottom is closely connected to be pressed in the underground continuous wall connector by pressurization
On water resistance test unit, the three classes pressure plate is respectively fixedly disposed at top bottom and the institute of the attached cavity pressure plate
The top bottom for the five class pressure transmitting plates stated；The attached cavity pressure plate is placed in the underground continuous wall connector waterproof performance examination
Verification certificate member side, it is another that the five class pressure transmitting plates are placed in the underground continuous wall connector water resistance test unit
Side clamps connection and is fixed on underground continuous wall connector between the attached cavity pressure plate and the five class pressure transmitting plates
On water resistance test unit, the attached cavity pressure plate and the underground continuous wall connector water resistance test unit it
Between form the closed cavity that communicates with the seam, described hydraulic communication pipe one end is connected to the attached cavity pressure plate
And its other end is connected to the hydraulic pressure ballast.
2. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 1, feature exist
In: the pilot system further includes underground continuous wall connector unit preparation facilities, the underground continuous wall connector unit style
Standby device includes that diaphram wall prepares case, diaphram wall locating slot, connector case and connector case locating slot, and the underground connects
Continuous wall prepares the rectangular box that case is upper end opening；The connector case locating slot is symmetricly set on the diaphram wall system
The middle position of two inner sidewalls of standby case；The diaphram wall locating slot is symmetricly set on the diaphram wall system
On two inner sidewalls of standby case and it is symmetrically distributed in the connector case locating slot two sides；The connector case is located underground continuous
Wall is prepared in case and the connector case both ends are inserted into just in the connector case locating slot, the side wall shape of the connector case
Shape is identical as the shape of the seam.
3. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 2, feature exist
In: the diaphram wall locating slot, the connector case locating slot are rectangular channel, and the diaphram wall prepares case
Side wall is assembled structure.
4. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 2, feature exist
In: the underground continuous wall connector water resistance test unit further includes that can be placed in the diaphram wall locating slot
Locating rod and pre- pile things on for being tightly connected with the attached cavity pressure plate or/and the five class pressure transmitting plates
Plate, the pre-buried pressing plate are arranged four pieces altogether, wherein pre-buried pressing plate described in two pieces is symmetricly set on the leading portion construction ground
The sidewall surfaces of lower diaphragm wall, in addition pre-buried pressing plate described in two pieces is symmetricly set on the back segment construction diaphram wall
Sidewall surfaces；The locating rod is arranged four altogether, wherein the laterally inserted leading portion construction ground of locating rod described in two
Down in continuous wall construction and on the outside of pre-buried pressing plate described in corresponding side, in addition locating rod described in two is laterally inserted described
Back segment construction continuous underground wall structure in and be located on the outside of pre-buried pressing plate described in corresponding side.
5. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 4, feature exist
It is rectangular parallelepiped structure in: the locating rod and the pre-buried pressing plate, the pre-buried pressing plate leads to before concreting
The form for crossing welding is fixed on diaphram wall steel reinforcement cage and the pre-buried pressing plate is located at the two sides 5- of the seam
The position 10cm, the locating rod are fixed on diaphram wall steel reinforcement cage and institute by way of welding before concreting
The locating rod stated is located at the position 5-10cm on the outside of pre-buried pressing plate described in corresponding side.
6. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 4, feature exist
In: the pilot system further includes that underground continuous wall connector seam prepares control device, and the underground continuous wall connector connects
Standby control device is sewed to include pinboard, the locking member for the pinboard to be fixed on diaphram wall and be used for
The control seam opens the pushing tow component of distance.
7. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 6, feature exist
Be " " shape structure in: the pinboard and be arranged four pieces altogether, wherein pinboard described in two pieces be symmetricly set on it is described
The sidewall surfaces of leading portion construction diaphram wall, in addition pinboard described in two pieces is symmetricly set under the back segment construction ground
The sidewall surfaces of diaphragm wall；It is provided with an a kind of bolt hole on the pinboard and two are fixed for the locating rod insertion
Pin hole, a kind of bolt hole is arranged on the pinboard end；The locking member includes a kind of pressure
Transmission plate and a kind of screw rod, a kind of pressure transmitting plates are located on the pinboard end, and a kind of screw rod is logical
A kind of bolt hole is crossed to be fastenedly connected with a kind of pressure transmitting plates；The pushing tow component is passed including two class pressure
Plate and telescopic rod are passed, the two class pressure transmitting plates are " " shape structure and are arranged in parallel with a kind of screw rod, described
The female parts of two class pressure transmitting plates be inserted into the transverse part of pinboard described in two sides outwardly, the telescopic rod and described
A kind of screw rod is vertically arranged and the telescopic rod both ends are withstood in the two class pressure transmitting plates, and the seam is described
Telescopic rod jacking force effect under be gradually flared to required width.
8. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 7, feature exist
In: the attached cavity pressure plate include several two classes screw holes, cavity, several two class screw rods, one piece of four class pressure plate and
One piece of four class pressure transmitting plates, the four class pressure transmitting plates are fixed at attached cavity pressure plate two sides and described
Four class pressure transmitting plates and the pre-buried pressing plate cooperate and be tightly connected, the two class screw holes are located at the four class pressure
In transmission plate, the four class pressure plates are located at the end of the five class pressure transmitting plates, and the two class screw rods are successively worn
Cross the two class screw holes, the five class pressure transmitting plates are fastenedly connected with the four class pressure plates, the cavity position
In the centre of the attached cavity pressure plate, the cavity and the underground continuous wall connector water resistance test unit it
Between form the confined space that communicates with the seam and the cavity is connected to the hydraulic communication pipe.
9. a kind of underground continuous wall connector waterproof performance simulation laboratory test system according to claim 8, feature exist
In: the bored plate in top bottom is I-shaped template, and the top bored plate face in bottom is tried to the underground continuous wall connector waterproof performance
Verification certificate member side is adhesive with the hydro-expansive rubber piece of 1-2mm thickness；The peripheral wall of the attached cavity pressure plate is towards the ground
The one side of lower continuous wall connector water resistance test unit is adhesive with the hydro-expansive rubber piece of 1-2mm thickness, and described is bored
Plate pressurizing device is small-sized hydraulic jack.
10. a kind of utilize underground continuous wall connector waterproof performance simulation laboratory test system described in any one of claim 7-9
The method that system carries out underground continuous wall connector waterproof performance simulation laboratory test, it is characterised in that the following steps are included:
(1) underground continuous wall connector water resistance test unit style is standby
1. diaphram wall prepares chamber interior wall, release agent is smeared in connector case outer surface；
2. connector case is inserted into connector case locating slot, while being prepared in diaphram wall and pouring into mud in case；
3. the leading portion for being fixed with locating rod, pre-buried pressing plate and water expandable waterstop construction diaphram wall steel reinforcement cage is placed into
Diaphram wall is prepared in case, and locating rod is inserted into diaphram wall locating slot；
4. pouring continuous wall concrete under leading portion construction ground, connector case is extracted behind maintenance-day；
5. the back segment for being fixed with locating rod and pre-buried pressing plate construction diaphram wall steel reinforcement cage is placed into diaphram wall preparation
In case, and locating rod is inserted into diaphram wall locating slot；
6. pouring continuous wall concrete under back segment construction ground, demoulded after conserving day；
7. the underground continuous wall connector water resistance test cell surface that demoulding obtains is carried out polishing processing, removal laitance guarantees
Smooth surface；
(2) the crack preparation of underground continuous wall connector seam
1. the pin hole of pinboard is directed at locating rod, block pinboard is located in underground continuous wall connector water resistance test list
In member, a kind of screw rod is further inserted into a kind of screw hole, then a kind of pressure transmitting plates are aligned and are inserted into a kind of screw rod, tighten one
Bolt on class screw rod makes pinboard step up to be fixed on underground continuous wall connector water resistance test unit；
2. two class pressure transmitting plates of pushing tow component are mounted on pinboard；
3. turning telescopic rod, pinboard is pushed by two class pressure transmitting plates, leading portion construction diaphram wall and back segment is made to construct
Crack is generated between diaphram wall, fracture width is observed using cracking instrument in real time, until fracture width reaches target width, is twisted
Fastening telescopic rod keeps fracture width constant；
(3) underground continuous wall connector waterproof performance is tested
The top and bottom 1. the bored plate in bottom will be pushed up be individually positioned in underground continuous wall connector water resistance test unit；
2. one piece of attached cavity pressure plate is placed in underground continuous wall connector water resistance test unit side, two piece of five class pressure is passed
Pass plate and be placed in the underground continuous wall connector water resistance test unit other side, and by two class screw rod of root by attached cavity pressure plate with
Five class pressure transmitting plates are fixedly clamped on underground continuous wall connector water resistance test unit, and bored plate pressurizing device is placed in top
On the bored plate in bottom, three classes pressure transmitting plates provide reaction force as bored plate pressurizing device back seat, by adding to bored plate pressurizing device
Pressure makes to push up the top bottom that the bored plate in bottom is pressed on underground continuous wall connector water resistance test unit；
3. hydraulic pressure ballast is connected to by hydraulic communication pipe with the cavity of attached cavity pressure plate, setting hydraulic pressure makes water body with pressure
Full of cavity, there is percolating water situation in the seam of underground continuous wall connector water resistance test unit, under persistent pressure observation place
The leakage scenarios of continuous wall connector water resistance test unit record corresponding observing time until not leaking.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193726.4A CN110056016B (en) | 2019-03-14 | 2019-03-14 | Indoor simulation test system and method for waterproof performance of underground diaphragm wall joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193726.4A CN110056016B (en) | 2019-03-14 | 2019-03-14 | Indoor simulation test system and method for waterproof performance of underground diaphragm wall joint |
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| CN110056016A true CN110056016A (en) | 2019-07-26 |
| CN110056016B CN110056016B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358287A (en) * | 2021-06-23 | 2021-09-07 | 广州地铁设计研究院股份有限公司 | Assembly type joint structure simulation monitoring system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204479416U (en) * | 2015-03-04 | 2015-07-15 | 中国建筑股份有限公司 | A kind of coercion underground continuous wall joint seal adhesive tape pressure test device |
| CN207331786U (en) * | 2017-10-11 | 2018-05-08 | 中国建筑股份有限公司 | Prefabricated ground-connecting-wall connector extruding and water resistance test device |
| CN210636473U (en) * | 2019-03-14 | 2020-05-29 | 宁波市轨道交通集团有限公司建设分公司 | Indoor simulation test system for waterproof performance of underground continuous wall joint |
-
2019
- 2019-03-14 CN CN201910193726.4A patent/CN110056016B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204479416U (en) * | 2015-03-04 | 2015-07-15 | 中国建筑股份有限公司 | A kind of coercion underground continuous wall joint seal adhesive tape pressure test device |
| CN207331786U (en) * | 2017-10-11 | 2018-05-08 | 中国建筑股份有限公司 | Prefabricated ground-connecting-wall connector extruding and water resistance test device |
| CN210636473U (en) * | 2019-03-14 | 2020-05-29 | 宁波市轨道交通集团有限公司建设分公司 | Indoor simulation test system for waterproof performance of underground continuous wall joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358287A (en) * | 2021-06-23 | 2021-09-07 | 广州地铁设计研究院股份有限公司 | Assembly type joint structure simulation monitoring system |
| CN113358287B (en) * | 2021-06-23 | 2024-05-28 | 广州地铁设计研究院股份有限公司 | Assembled joint structure simulation monitoring system |
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| Publication number | Publication date |
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| CN110056016B (en) | 2023-10-20 |
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