CN219319706U - Pile head waterproof sealing test device - Google Patents

Abstract

The utility model relates to the field of building structure waterproofing, and provides a pile head waterproofing tightness test device which comprises a box body, a water storage device, a water pipe, a pressure device, a fixing clamp and a water leakage detection device, wherein the water storage device is arranged on the box body; the box body is formed by enclosing a top plate, a bottom plate and a vertical plate, and the bottom plate is provided with an opening; the pile head waterproof sample comprises a waterproof layer and a pile body inserted in the waterproof layer; the water inlet end of the water pipe is communicated with the water storage device, the water outlet end of the water pipe passes through the opening to be communicated with the inside of the box body, and the water outlet end of the water pipe is matched with the opening; the pressure device comprises a pressure device and a total pressure display meter which are connected, and the pressure device is communicated with the water storage device; the water leakage detection device comprises a water leakage induction line arranged in the box body and a water leakage controller arranged outside the box body; the water leakage induction line is arranged at the joint of the pile body and the waterproof layer; the water leakage induction line is connected with the water leakage controller. The utility model detects the waterproof sealing effect of the pile head waterproof test sample before construction, and provides a reference basis for improving the pile head waterproof technology.

Description

Pile head waterproof sealing test device

Technical Field

The utility model relates to the field of building structure waterproofing in the building construction process, in particular to a pile head waterproofing tightness test device.

Background

In the construction process of the building foundation, the building foundation needs to be square and pile heads are arranged to improve the bearing capacity of the building foundation, and concrete structures including concrete bearing platforms, cushion layers and the like are arranged around the pile heads. The pile head and the concrete bearing platform are usually constructed sequentially, so that the joint of the pile head and the concrete bearing platform is a position which is easy to generate gaps, the cushion layer is also easy to be penetrated by rainwater and underground water, the pile head water seepage can cause hidden danger of water seepage to the bottom layer of a building, and permanent water seepage of the building can not be compensated if corresponding treatment is not carried out.

Therefore, the pile head is generally required to be waterproofed. The waterproof of the cushion layer usually adopts a pre-paved waterproof coiled material, the coiled material is broken at the pile head, a circle of anti-cracking waterproof mortar is coated around the pile head to press the coiled material, the coiled material is prevented from turning upwards by the gravity of the mortar during waterproof, and a node waterproof sealing paste with excellent weather resistance is coated on the mortar and the surrounding surfaces of the mortar, so that the waterproof and bonding functions are realized; the common waterproof mode of the concrete pile cap is to fill gaps with waterproof paint or to use waterproof coiled materials to be distributed between the two so as to achieve the effect of blocking the gaps between the pile head and the concrete pile cap.

However, in the prior art, a device for detecting the tightness of the pile head waterproof material is not available, and the waterproof effect cannot be detected.

Disclosure of Invention

The utility model aims to overcome at least one defect of the prior art and provides a pile head waterproof sealing performance testing device for detecting the sealing performance of a pile head waterproof material.

The utility model provides a pile head waterproof tightness test device which comprises a box body, a water storage device, a water pipe, a pressure device, a fixing clamp and a water leakage detection device, wherein the water storage device is arranged on the box body; the box body is formed by enclosing a top plate, a bottom plate and a vertical plate, and the bottom plate is provided with an opening; the box body is used for accommodating a pile head waterproof sample; the pile head waterproof sample comprises a waterproof layer and a pile body inserted in the waterproof layer; the water storage device is arranged outside the box body, the water inlet end of the water pipe is communicated with the water storage device, the water outlet end of the water pipe penetrates through the opening to be communicated with the inside of the box body, and the water outlet end of the water pipe is matched with the opening; the pressure device comprises a pressurizing device and a total pressure display meter which are connected, and the pressurizing device is connected with the water storage device; the fixing clamp is used for fixedly clamping a top plate and a bottom plate of the box body; the water leakage detection device comprises a water leakage induction line arranged in the box body and a water leakage controller arranged outside the box body; the water leakage induction line is arranged at the joint of the pile body and the waterproof layer; and the outgoing line of the water leakage induction line is connected with the water leakage controller.

In the technical scheme, the box body is a closed container, the vertical plate of the box body is a vertical plate which is designed around a circle and internally forms a cavity, and the top plate and the bottom plate of the box body are plates respectively sealing the upper opening and the lower opening of the cavity; the bottom plate is provided with an opening serving as a water inlet opening of the box body, so that water enters from the bottom of the pile head waterproof sample, and underground water permeation is simulated, so that the waterproof performance of the pile head waterproof sample is tested. The fixing clamp clamps the top plate and the bottom plate of the box body in the middle of the clamp, so that the box body is firmer, and the influence on the detection result caused by the damage of the tightness of the box body in long-time detection is prevented.

The water storage device is used for providing a water source for the pile head waterproof sample in the box body; the water pipe is a channel for water to flow from the pressurizing device to the inside of the box body, the water inlet end of the water pipe is one end communicated with the pressurizing device, the water outlet end of the water pipe is one end extending into the inside of the box body, and the water outlet end of the water pipe can be only one or two or more than two, namely, the water can flow into the inside of the box body through the water outlet ends of different branches after flowing out of the pressurizing device, and the water outlet of the water outlet end can be at different positions of the water pipe, such as the pipe orifice of a water outlet pipe or the side wall of the water outlet pipe; the water outlet end, the size, the shape and the number of the water pipes are the same as those of the openings.

The pressurizing device is used for providing pressure for water in the water storage device, so that the water can flow in the water pipe at different set pressures, the waterproof performance of the pile head waterproof sample under different water pressures is observed, and the total pressure display meter is used for enabling a user to accurately grasp the water pressure, so that the water seepage node is convenient to judge.

The water leakage detection device is used for detecting whether the pile head waterproof sample leaks or not; the joint of the pile head and the waterproof layer is a detected part of the pile head waterproof sample, a water leakage induction line is arranged at the detected part and used for inducing leaked water, and the water leakage controller is used for detecting whether the water leakage induction line is contacted with liquid.

According to the technical scheme, the waterproof effect of the pile head sealing structure can be detected before construction, the construction quality of a building is improved, and the consumption of manpower and material resources caused by subsequent maintenance is avoided; meanwhile, the test device of the technical scheme can detect the pile head sealing structure waterproof in different modes, and is high in applicability.

Further, the water pipe comprises a main pipe, a branch pipe and a vertical stand pipe, wherein the main pipe is horizontally arranged, one end of the main pipe is a water inlet end of the water pipe, and the other end of the main pipe is communicated with a plurality of branch pipes; each branch pipe is communicated with at least one vertical pipe, and one end of the vertical pipe, which is far away from the branch pipe, is the water outlet end of the water pipe; and each branch pipe is provided with a switch.

In the technical scheme, the water inlet end of the main pipe is one end connected with the pressurizing device, the ports of the other end are communicated with the plurality of branch pipes, the vertical pipes communicated with each branch pipe can be one or more, and one end of each vertical pipe, which is far away from the branch pipe, is one end which extends into the box body and serves as a water outlet end. So with rivers reposition of redundant personnel become a plurality of branches and get into the box through different water outlet, make the bottom of pile head waterproof test sample have a plurality of oozes water point, more be close the infiltration of real bottom water condition, improve waterproof testing result's referential nature.

The switch is used for controlling the on-off of water flow in each branch pipe, so that the individual control of each branch pipe is realized.

Further, each branch pipe is communicated with two vertical pipes, the distance between the two vertical pipes on each branch pipe is the same, and the distance between the vertical pipes on the adjacent branch pipes is the same.

In the technical scheme, the vertical pipes are arranged in a rectangular shape only by the same adjacent intervals in the transverse direction and the vertical direction, so that the water outlet points are uniformly arranged.

Further, the pipe orifice of the water outlet end of the vertical pipe is in a sealing design, and a plurality of water outlet holes are formed in the pipe wall of the water outlet end of the vertical pipe.

In the technical scheme, a riser pipe orifice of the riser extending into the box body is closed, a plurality of water outlet holes are formed in the side wall of the riser extending into the box body, and water in the riser flows into the box body through the water outlet holes. The design makes the apodization, has also increased the apodization like this, makes more positions of pile head waterproof sample receive rivers infiltration simultaneously, detects on this basis and can improve the reliability of water-proof effects.

Further, groove rings are arranged on the inner sides of the top plate and the bottom plate, and the vertical plates are embedded in the groove rings.

In this technical scheme, the setting of recess has spacing effect to the riser, makes the junction of riser and roof and bottom plate be difficult to appear the crack not hard up, has further guaranteed the accuracy of detection effect.

Further, the lengths of the top plate and the bottom plate are 50 cm-70 cm, the widths of the top plate and the bottom plate are 40 cm-60 cm, and the thicknesses of the top plate, the bottom plate and the vertical plates are 0.8-1.5 cm.

In this technical scheme, roof, bottom plate, riser size can increase occupation space if too big, and simultaneously when detecting bad control, if the size is too little, its reliability of waterproof testing result is limited, consequently suitable size can guarantee its detection effect accuracy and save occupation space simultaneously.

Further, the depth of the groove ring is 0.4-0.7 cm, and the width of the groove ring is 0.8-1.5 cm.

In this technical scheme, the appropriate setting of the degree of depth and the width of recess ring can be under the prerequisite of guaranteeing to carry out spacing to the riser, saves height and the thickness of riser, save material, practice thrift the cost.

Further, the fixing clamp comprises a -shaped frame, a tightening screw and a fixing block, wherein connecting caps are arranged at two ends of the -shaped frame, through holes are formed in the connecting caps, the bottom surface of the fixing block is connected with the top plate or the bottom plate, and round holes are formed in the top surface of the fixing block; the through hole and the round hole are in threaded connection with the jacking screw.

In this technical scheme, "" shape frame is used for will link to each other with the tight structure of top plate and bottom plate department, forms a clip form structure, and tight screw rod is used for pressing from both sides the top plate and the bottom plate toward inboard top tightly, screws into connecting cap and fixed block with it and makes the top surface and the bottom surface of box be cliied to make the box more firm.

Further, the experimental device comprises two fixing clamps, and the two fixing clamps are respectively arranged on the left side and the right side of the box body.

In this technical scheme, the left and right sides of box has all set up mounting fixture, and the box is pressed from both sides tight stress point increases and distributes in both sides, makes the box further fixed.

Further, the top plate, the bottom plate and the vertical plate are polycarbonate plates.

In the technical scheme, the polycarbonate plate has the advantages of light weight, convenience in installation, high impact strength and the like, and can ensure the smooth detection.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The utility model can detect the waterproof sealing effect of the pile head waterproof sample before construction, verify the waterproof mode of the pile head and the waterproof effect of the waterproof material on the pile head, improve the construction quality, avoid the consumption of manpower and material resources caused by subsequent maintenance and repair, and provide reference for improving the pile head waterproof technology.

(2) The utility model can detect pile head waterproof samples adopting different waterproof modes and has strong applicability.

(3) According to the utility model, the box body is further fixed by the design of the fixing clamp, so that the box body is firmer, and the smooth detection is ensured.

Drawings

FIG. 1 is a schematic view showing the overall structure of the test apparatus of example 1.

Fig. 2 is a schematic diagram of the structure of the base plate of embodiment 1.

Fig. 3 is a top view of the water leakage sensing line of example 1.

Fig. 4 is a water pipe layout diagram of example 1.

FIG. 5 is a water pipe layout diagram of example 2.

Reference numerals: the box body 1, the top plate 11, the groove ring 111, the bottom plate 12, the opening 121, the vertical plate 13, the pressurizing device 2, the pressurizing pump 21, the pneumatic air pipe 22, the air nozzle 23, the control switch 24, the total pressure display meter 3, the water pipe 4, the main pipe 41, the branch pipe 42, the first switch 421, the second switch 422, the third switch 423, the fourth switch 424, the vertical pipe 43, the fixing clamp 5, the -shaped frame 51, the jacking screw 52, the connecting cap 53, the fixing block 54, the water storage device 6, the water filling port 61, the water discharging port 62, the pile head waterproof sealing model 7, the covering layer 71, the cushion 72, the first waterproof layer 73, the second waterproof layer 74, the concrete bearing platform 75, the waterproof layer 76, the pile body 77, the square ring 8, the water leakage sensing line 91, the outgoing line 911 and the water leakage controller 92.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the utility model. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

Referring to fig. 1 to 4, a device for testing waterproof tightness of a pile head according to the present embodiment includes a box 1, a water storage device 6, a water pipe 4, a pressure device, a fixing clamp 5, and a water leakage detection device; the box body 1 is formed by enclosing a top plate 11, a bottom plate 12 and a vertical plate 13, and the bottom plate 12 is provided with an opening 121; the box body 1 is used for accommodating a pile head waterproof sample 7; the pile head waterproof sample 7 comprises a waterproof layer 76 and a pile body 77 inserted in the waterproof layer; the water storage device 6 is arranged outside the box body 1, the water inlet end of the water pipe 4 is communicated with the water storage device 6, the water outlet end of the water pipe 4 passes through the opening 121 to be communicated with the inside of the box body 1, and the water outlet end of the water pipe 4 is matched with the opening 121; the pressure device comprises a pressurizing device 2 and a total pressure display meter 3 which are connected, and the pressurizing device 2 is communicated with the water storage device 6; the fixing clamp 5 is used for fixedly clamping a top plate 11 and a bottom plate 12 of the box body; the water leakage detection device comprises a water leakage induction line 91 arranged in the box body 1 and a water leakage controller 92 arranged outside the box body 1; the water leakage induction line 91 is arranged at the joint of the pile body 77 and the waterproof layer 76; the outgoing line 911 of the water leakage induction line 91 is connected to the water leakage controller 92.

Specifically, the pile head waterproof sample 7 further comprises a concrete bearing platform 75, the concrete bearing platform 75 coats the top of the pile body 77, a detection space is arranged between the periphery of the concrete bearing platform 75 and the inner wall of the box body 1, the water leakage induction line 91 is arranged in the detection space, and further, the water leakage induction line 91 is arranged around the concrete bearing platform 75. The outgoing line 911 of the water leakage induction line 91 passes through the top plate 11 and is connected to the water leakage controller 92. The water leakage controller 92 gives an alarm when detecting that the water leakage sensing line 91 contacts the liquid.

In this embodiment, the pressurizing device 2 includes a pressurizing pump 21, an air nozzle 23, and a plurality of air pressure delivery pipes 22, where the pressurizing pump 21 is connected to one end of the air pressure delivery pipe 22, and the other end of the air pressure delivery pipe 22 is connected to the air nozzle 23, and the air nozzle of the air nozzle 23 faces the water storage device 6. The pressure device is also provided with a control switch 24 for controlling the opening and closing of the pressurizing device 2, and the water storage device is provided with a water filling port 61 and a water discharging port 62 which are communicated.

The lengths of the top plate 11 and the bottom plate 12 are 50 cm-70 cm, the widths of the top plate 11 and the bottom plate 12 are 40 cm-60 cm, and the thicknesses of the top plate 11, the bottom plate 12 and the vertical plates 13 are 0.8-1.5 cm. Preferably, the lengths of the top plate 11 and the bottom plate 12 are 60cm, the widths thereof are 50cm, the thicknesses of the top plate 11, the bottom plate 12 and the vertical plates 13 are 1cm, the inner sides of the top plate 11 and the bottom plate 12 are provided with groove rings 111, and the vertical plates 13 are embedded in the groove rings 111. The depth of the groove ring 111 is 0.4-0.7 cm, and the width of the groove ring 111 is 0.8-1.5 cm. Preferably, the depth of the groove ring 111 is 0.5cm, and the width of the groove ring 111 is 1cm. Before the box body 1 is assembled, a layer of adhesive is coated on the groove ring 111, after the vertical plate 13 is inserted into the groove, a sealant is sprayed on the joint of the vertical plate 13 and the top plate 11 as well as the bottom plate 12, so that airtight sealing is performed.

The test device comprises two fixing clamps, and the two fixing clamps are respectively arranged on the left side and the right side of the box body 1. The fixing clamp comprises a -shaped frame 51, a jacking screw 52 and a fixing block 54, wherein connecting caps 53 are arranged at two ends of the -shaped frame 51, through holes are formed in the connecting caps 53, the bottom surface of the fixing block 54 is connected with the top plate 11 or the bottom plate 12, and round holes are formed in the top surface of the fixing block 54; the through hole and the round hole are both in threaded connection with the tightening screw 52.

The water pipe 4 comprises a main pipe 41, branch pipes 42 and a vertical riser 43 which are horizontally arranged, one end of the main pipe 41 is a water inlet end of the water pipe 4, and the other end of the main pipe 41 is communicated with the plurality of branch pipes 42; each branched pipe 42 is communicated with at least one vertical pipe 43, in this embodiment, preferably, one end of the main pipe 41 is communicated with 4 branched pipes 42, the branched pipes 42 are arranged along the width direction of the box body 1, each branched pipe 42 is communicated with two vertical pipes 43, 8 openings 121 are correspondingly arranged on the bottom plate 12, namely, two rows of openings 121 are arranged along the width direction of the box body 1, and the distance between each row of openings 121 and the side vertical plate 13 is preferably 87.5cm; one end of the vertical pipe 43 far away from the branch pipe 42 is the water outlet end of the water pipe 4; the mouth of the water outlet end of the vertical pipe 43 is in a sealing design, and the pipe wall of the water outlet end of the vertical pipe 43 is provided with a plurality of water outlet holes, wherein the aperture of the water outlet holes is 0.3-0.7 cm, preferably 0.5cm; each of the branched pipes 42 is provided with a switch, and in this embodiment, the switches on the 4 branched pipes 42 are a first switch 421, a second switch 422, a third switch 423 and a fourth switch 424. The two risers 43 on each lateral pipe 42 are the same distance, and the risers 43 on adjacent lateral pipes 42 are the same distance. For example, the positions of the risers 43 are in a rectangular distribution.

The test device further comprises a square ring 8 arranged in the box body 1, and the square ring 8 is arranged on a waterproof layer 76 of the pile head waterproof sample 7. The square ring 8 is used for pressing the waterproof layer 76 of the large-surface paving part, preventing the waterproof layer 76 of the large-surface paving part from being influenced by water pressure in the detection process to be raised, influencing the waterproof effect of the pile head of the pile body, ensuring the accuracy of the test device in detecting the waterproof mode of the pile head and the waterproof effect of the waterproof material, and improving the reliability of the test result. Specifically, the square ring 8 may be a material capable of pressing the waterproof layer 76, for example, concrete.

The following uses a pile head waterproof sample as an example test device.

Step 1: the preparation of pile head waterproof test specimen 7 and the preparation of a test device. All the risers 43 are extended into the box 1 of the unencapsulated top plate 11 by 5cm; paving backfill soil in the box body 1 and tamping to form a soil covering layer 71, wherein the soil covering layer 71 is 8cm in height, and inserting a pile body; pouring a cushion layer 72, wherein the height is 4cm, paving alkali-resistant grid cloth, and performing secondary calendering and leveling on the surface; the waterproof layer 73 of the pile head waterproof sample comprises a first waterproof layer and a second waterproof layer 74, the first waterproof layer 73 is paved to form a reinforced waterproof layer, the first waterproof layer 73 is modified silane coating and TPO coiled materials (L types, 250 mm), and the TPO coiled materials are paved through a full-adhesion method; paving a second waterproof layer 74, wherein the second waterproof layer 74 is a TPO polymer coiled material (250 mm), and welding the TPO polymer coiled material with the TPO coiled material in the first waterproof layer 73; sealing materials are applied to the joint of the pile body and the waterproof material, wherein the sealing materials are expanded polyurethane glue and water-expanded water stop bars; pouring a concrete bearing platform 75, wherein the thickness is 8cm, and vibrating and compacting; finally, the top plate 11 of the box body 1 is installed, the jacking screw 52 is screwed down, and the box body is clamped and fixed.

Step 2: adding water from the water adding port 61 to the water storage device 6, and closing the first switch 421, the second switch 422, the third switch 423 and the fourth switch 424;

step 3: the pressurizing device 2 pressurizes the total pressure display table 3 to boost the pressure by 0.3MPa, the first switch 421 and the third switch 423 are opened, the water pressure is kept stable for 30min, if the water leakage controller does not give an alarm, the pressure is kept at 0.3MPa for 60min, if the water leakage controller does not give an alarm, the step 4 is continued;

step 4: pressurizing by the pressurizing device 2 to boost the total pressure display table 3 by 0.6MPa, opening the second switch 422 and the fourth switch 424, keeping the water pressure stable for 30min, if the water leakage controller does not give an alarm, prolonging the time to 60min, and if the water leakage controller does not give an alarm, continuing the step 5;

step 5: the total pressure display table 3 is continuously pressurized at 0.2MPa each time by pressurizing by the pressurizing means 2, and the operation process of step 4 is repeated until the total pressure is the target detection pressure or the water leakage controller 92 gives an alarm.

Example 2

As shown in fig. 5, this embodiment provides a test device for waterproof tightness of a pile head, which has a structure similar to that of embodiment 1, and is different in that: one end of the main pipe 41 is communicated with 2 branch pipes 42, each branch pipe 42 is communicated with 4 vertical pipes 43, and 8 openings are correspondingly formed in the bottom plate 12.

It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and are not intended to limit the present utility model to the specific embodiments thereof. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present utility model should be included in the protection scope of the claims of the present utility model.

Claims (10)

1. The device for testing the waterproof tightness of the pile head is characterized by comprising a box body, a water storage device, a water pipe, a pressure device, a fixing clamp and a water leakage detection device;

the box body is formed by enclosing a top plate, a bottom plate and a vertical plate, and the bottom plate is provided with an opening; the box body is used for accommodating a pile head waterproof sample; the pile head waterproof sample comprises a waterproof layer and a pile body inserted in the waterproof layer;

the water storage device is arranged outside the box body, the water inlet end of the water pipe is communicated with the water storage device, the water outlet end of the water pipe penetrates through the opening to be communicated with the inside of the box body, and the water outlet end of the water pipe is matched with the opening; the pressure device comprises a pressurizing device and a total pressure display meter which are connected, and the pressurizing device is connected with the water storage device;

the fixing clamp is used for fixedly clamping a top plate and a bottom plate of the box body;

the water leakage detection device comprises a water leakage induction line arranged in the box body and a water leakage controller arranged outside the box body; the water leakage induction line is arranged at the joint of the pile body and the waterproof layer; and the outgoing line of the water leakage induction line is connected with the water leakage controller.

2. The test device according to claim 1, wherein the water pipe comprises a horizontal main pipe, a branch pipe and a vertical stand pipe, one end of the main pipe is a water inlet end of the water pipe, and the other end of the main pipe is communicated with the plurality of branch pipes; each branch pipe is communicated with at least one vertical pipe, and one end of the vertical pipe, which is far away from the branch pipe, is the water outlet end of the water pipe; and each branch pipe is provided with a switch.

3. The test device of claim 2, wherein each of the lateral pipes is connected to two risers, the two risers on each of the lateral pipes being the same distance, and the risers on adjacent lateral pipes being the same distance.

4. A test device according to claim 3, wherein the nozzle of the water outlet end of the stand pipe is of a sealing design, and the pipe wall of the water outlet end of the stand pipe is provided with a plurality of water outlet holes.

5. The test device of claim 1, wherein the top and bottom plates are provided with groove rings on the inner sides thereof, and wherein the risers are embedded in the groove rings.

6. The test device of claim 5, wherein the top and bottom plates have a length of 50cm to 70cm, a width of 40cm to 60cm, and a thickness of 0.8 cm to 1.5cm.

7. The test device of claim 5, wherein the groove ring has a depth of 0.4 to 0.7cm and a width of 0.8 to 1.5cm.

8. The test device according to any one of claims 1 to 7, wherein the fixing clamp comprises a -shaped frame, a tightening screw and a fixing block, connecting caps are arranged at two ends of the -shaped frame, through holes are formed in the connecting caps, the bottom surface of the fixing block is connected with the top plate or the bottom plate, and round holes are formed in the top surface of the fixing block; the through hole and the round hole are in threaded connection with the jacking screw.

9. The test device of claim 8, wherein the test device comprises two fixtures, the two fixtures being disposed on left and right sides of the housing, respectively.

10. The test device of claim 9, wherein the top plate, bottom plate and riser are polycarbonate plates.

Images