CN208588610U - A kind of concrete axial compression experiment device under water confining pressure environment - Google Patents

Abstract

The utility model provides the concrete axial compression experiment device under a kind of water confining pressure environment, including confining pressure bucket, end cap, piston and interior bucket, the confining pressure bucket is the hollow housing of open at both ends, confining pressure bucket both ends are connect with end cap and piston seal respectively, end cap is equipped with the inlet opening being connected to constant pressure water pipe and apopore, interior bucket is located in the cavity inside confining pressure bucket, for placing concrete sample to be detected, one end that piston passes through interior bucket is contacted with concrete sample, for detecting the deflection of concrete sample.The axial compression test of concrete is subjected to lateral setting, the volume of experimental rig is greatly reduced, saves time and the space of test, matches the sealed connection for realizing confining pressure bucket and end cap with groove using bulge loop, effectively solves the problems, such as to be easy leak during test.The utility model has many advantages, such as that structure is simple and convenient to operate and low manufacture cost, meets the design concept of low-carbon environment-friendly, and detection effect is very significant, has the prospect promoted and applied.

Description

A kind of concrete axial compression experiment device under water confining pressure environment

Technical field

The utility model relates to concrete NDT technical fields, and in particular to the concrete axial pressure under a kind of water confining pressure environment Experimental provision.

Background technique

In terms of concrete material static and dynamic performance scientific research, characteristic research of the concrete in hydraulic pressure force environment is research Key points and difficulties, difficult point are: (1) want simulation concrete under high hydraulic pressure (1,3,5,7,9,10MPa) environment, test dress It sets and must have enough rigidity and leakproofness, be otherwise easy to leak.And be related to detect concrete deformation when must Deformation device need be placed in inside confining pressure bucket together with concrete, so the connecting line of deformation gauge and externally measured instrument must Need be by confining pressure bucket, this is just that hidden danger has been buried in the leak under high hydraulic pressure of confining pressure bucket, because water on the one hand can be from protection The inside of deformation gauge device itself leaks out, and can also leak out from the place of traversing pipe line confining pressure bucket, bring great inconvenience for experiment； (2) installation due to deformation gauge inside confining pressure bucket will occupy a big chunk space, so what entire confining pressure bucket was compelled to do Very greatly, up to 2m, diameter reach 1m, weigh 1 ton, and light is toward the water filling of confining pressure bucket and to drain four small with regard to needing during the experiment When, it operates also dangerous.

In order to solve the above problem, the axial compression test of concrete is laterally arranged the utility model, is laterally added using triaxial apparatus The compressive deformation for setting measurement concrete is carried, and invents corresponding corollary apparatus, the volume-diminished of confining pressure bucket to length can be arrived into 60cm Within, within diameter 30cm, not only solve the space that test is greatly reduced because of the problem of deformation gauge installs leak Test specimen, it is easy to operate.

Summary of the invention

The technical problem to be solved by the utility model is to provide the concrete axle pressure test dresses under a kind of water confining pressure environment It sets, can quickly detect the deflection of concrete sample, effectively solve the problems, such as to be easy leak, also greatly reduce the body of experimental rig Product, saves time and the space of test.

It is mixed under a kind of in order to solve the above technical problems, the technical scheme adopted by the utility model is: water confining pressure environment Solidifying soil axle pressure test device, including confining pressure bucket, end cap, piston and interior bucket, the confining pressure bucket are the hollow housings of open at both ends, are enclosed Pressure bucket both ends are connect with end cap and piston seal respectively, and confining pressure bucket is equipped with the inlet opening being connected to constant pressure water pipe and apopore, interior Bucket position is in the cavity inside the confining pressure bucket, and for placing concrete sample to be detected, piston passes through one end and the coagulation of interior bucket Native test specimen contact, for detecting the deflection of concrete sample.

In preferred scheme, the contact surface of the end cap and confining pressure bucket is equipped with bulge loop, the contact surface of confining pressure bucket be equipped with it is convex The matched annular recess of ring matches the sealed connection for realizing confining pressure bucket and end cap using bulge loop with groove.

In preferred scheme, the end cap is equipped with multiple connection through-holes, and it is multiple right that the contact surface of confining pressure bucket and end cap is equipped with The connection blind hole answered, screw one end pass through connection through-hole with connect blind threaded connection, realization confining pressure bucket and end cap it is detachable Connection.

In preferred scheme, the confining pressure bucket inner wall is equipped with sliding slot, and interior bucket lateral wall is equipped with the slideway cooperated with sliding slot, interior The slideway of bucket is mounted in the sliding slot of confining pressure bucket, for preventing interior bucket from rotating.

In preferred scheme, the inner wall of the interior bucket is equipped with more than two support bases, is used to support concrete sample.

In preferred scheme, the interior bucket is equipped with Steel net close to one end of piston, and the other end is equipped with fixed knob, uses In interior bucket is taken out from confining pressure bucket.

In preferred scheme, the end cap is equipped with pad close to the side of confining pressure bucket, for contacting with concrete.

The utility model provides the concrete axial compression experiment device under a kind of water confining pressure environment, have using the above structure with It is lower the utility model has the advantages that

1) axial compression test of concrete is subjected to lateral setting, thus by within the length reduction to 60cm of confining pressure bucket, it is straight Within diameter 30cm, the volume of experimental rig is greatly reduced, saves time and the space of test；

2) sealed connection for realizing confining pressure bucket and end cap is matched, with groove using bulge loop to solve to be easy during test The problem of leak detects the axial deformation amount of concrete sample by piston displacement, and easy to operate, centering is accurate, is conducive to mention The accuracy of high test data；

3) structure is simple and convenient to operate and low manufacture cost, meets the design concept of low-carbon environment-friendly, test effect is very aobvious It writes, there is the prospect promoted and applied.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and examples:

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the overall structure diagram of the utility model；

Fig. 3 is structural schematic diagram of the utility model under disassembled state；

Fig. 4 is the structural schematic diagram of end cap in the utility model；

Fig. 5 is the structural schematic diagram of interior bucket in the utility model.

In figure: confining pressure bucket 1, end cap 2, piston 3, interior bucket 6, concrete sample 7 connect blind hole 11, and groove 12 connects through-hole 21, bulge loop 22, pad 23, slideway 61, fixed knob 62, support base 63, Steel net 64.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to embodiment pair The utility model is described in further detail.In the following description, descriptions of well-known structures and technologies are omitted, to avoid Unnecessarily obscure the concept of the utility model.

As in Fig. 1-5, a kind of concrete axial compression experiment device under water confining pressure environment, including confining pressure bucket 1, end cap 2, piston 3 and interior bucket 6, the confining pressure bucket 1 is the hollow housing of open at both ends, and 1 both ends of confining pressure bucket connect with end cap 2 and the sealing of piston 3 respectively It connecing, confining pressure bucket 1 is equipped with the inlet opening 4 being connected to constant pressure water pipe and apopore 5, interior bucket 6 are located in the cavity inside confining pressure bucket 1, For placing concrete sample 7 to be detected, one end that piston 3 passes through interior bucket 6 is contacted with concrete sample 7, mixed for detecting The deflection of solidifying soil test specimen 7.The axial compression test of concrete is subjected to lateral setting, so that the length reduction of confining pressure bucket 1 be arrived Within 60cm, within diameter 30cm, the volume of experimental rig is greatly reduced, saves time and the space of test, and passes through work The axial deformation amount of 3 displacement detecting concrete samples 7 is filled in, easy to operate, centering is accurate, is conducive to improve the accurate of test data Property.

In preferred scheme, the contact surface of the end cap 2 and confining pressure bucket 1 is equipped with bulge loop 22, and the contact surface of confining pressure bucket 1 is equipped with With the matched annular recess 12 of bulge loop 22, is matched using bulge loop 22 with groove 12 and realize that the sealing of confining pressure bucket 1 and end cap 2 connects It connects, effectively solves the problems, such as to be easy leak during test.

In preferred scheme, the end cap 2 is equipped with multiple connection through-holes 21, and the contact surface of confining pressure bucket 1 and end cap 2 is equipped with more A corresponding connection blind hole 11, screw one end pass through connection through-hole 21 and are threadedly coupled with blind hole 11 is connect, and realize confining pressure bucket 1 and end Lid 2 is detachably connected, being put into or taking out convenient for concrete sample 7.

In preferred scheme, 1 inner wall of confining pressure bucket is equipped with sliding slot, and 6 lateral wall of interior bucket is equipped with the slideway cooperated with sliding slot 61, the slideway 61 of interior bucket 6 is mounted in the sliding slot of confining pressure bucket 1, for preventing interior bucket 6 from rotating, to improve the standard of test data True property.

In preferred scheme, the inner wall of the interior bucket 6 is equipped with more than two support bases 63, is used to support concrete sample 7, convenient for concrete sample 7 to be aligned in placement process with confining pressure bucket both ends, and ensure the end face point at 7 both ends of concrete sample Not in the same plane with the contact surface of end cap 2 and piston 3, it is not only convenient for operating, also advantageously improves the standard of test data True property.

In preferred scheme, the interior bucket 6 is equipped with Steel net 64 close to one end of piston 3, and the other end is equipped with fixed draw Hand 62, for taking out interior bucket 6 from confining pressure bucket 1.3 one end of piston is just passed through the through-hole and concrete at 64 middle part of Steel net Test specimen 7 contacts, and Steel net 64 is avoided that influence of the broken concrete to piston 3, but does not influence the inspection to concrete sample 7 It surveys.

In preferred scheme, the end cap 2 is equipped with pad 23 close to the side of confining pressure bucket 1, is used for and concrete to be measured 7 face contact of test specimen, convenient for detecting the deflection of concrete sample 7.

In order to solve the above technical problems, the utility model also provides the detection method of the experimental provision, include following step It is rapid:

1) first whole device is placed on testing stand using lifting appliance, interior bucket is pulled out by a part by fixed knob, Concrete sample is placed on support base, then interior bucket is pushed into confining pressure bucket, so that strainer is nested together with piston, adjustment is mixed The end face of solidifying soil test specimen two ends respectively with the contact surface of end cap and piston in the same plane, it is ensured that concrete sample and end cap and Piston is face contact；

2) matched using the bulge loop of end cap with confining pressure chimb, by screw pass through connection through-hole with connect blind hole spiral shell Line connection, realizes the sealed connection of confining pressure bucket and end cap；

3) inlet opening and apopore are connected to respectively by outer water tube with constant pressure water pipe, the cavity in device is filled Water, and maintain specified hydraulic pressure；

4) it by the loading frame of device push-in triaxial apparatus, is loaded and is detected；

5) release, draining after detecting, and confining pressure bucket is removed, end cap is laid down, interior bucket is pulled out, clears up residue.

The above embodiments are only the optimal technical scheme of the utility model, the embodiment being not all of, and are not construed as Limitation for the utility model, the technical solution that the protection scope of the utility model should be recorded with claim, including right It is required that the equivalents of technical characteristic are protection scope in the technical solution recorded.Equivalent replacement i.e. within this range changes Into being also within the protection scope of the utility model.

Claims (7)

1. the concrete axial compression experiment device under a kind of water confining pressure environment, it is characterized in that: including confining pressure bucket (1), end cap (2), living Fill in (3) and interior bucket (6), the confining pressure bucket (1) is the hollow housing of open at both ends, confining pressure bucket (1) both ends respectively with end cap (2) and Piston (3) is tightly connected, and confining pressure bucket (1) is equipped with the inlet opening (4) being connected to constant pressure water pipe and apopore (5), interior bucket (6) are located at In the internal cavity of confining pressure bucket (1), for placing concrete sample to be detected (7), piston (3) passes through the one end of interior bucket (6) It is contacted with concrete sample (7), for detecting the deflection of concrete sample (7).

2. the concrete axial compression experiment device under a kind of water confining pressure environment according to claim 1, it is characterized in that: the end The contact surface for covering (2) and confining pressure bucket (1) is equipped with bulge loop (22), and the contact surface of confining pressure bucket (1) is equipped with and bulge loop (22) matched ring Shape groove (12) matches the sealed connection for realizing confining pressure bucket (1) and end cap (2) using bulge loop (22) with groove (12).

3. the concrete axial compression experiment device under a kind of water confining pressure environment according to claim 1, it is characterized in that: the end It covers (2) and is equipped with multiple connection through-holes (21), confining pressure bucket (1) is equipped with multiple corresponding connection blind holes with the contact surface of end cap (2) (11), screw one end passes through connection through-hole (21) and is threadedly coupled with blind hole (11) are connect, and realizes confining pressure bucket (1) and end cap (2) It is detachably connected.

4. the concrete axial compression experiment device under a kind of water confining pressure environment according to claim 1, it is characterized in that: described enclose Bucket (1) inner wall is pressed to be equipped with sliding slot, interior bucket (6) lateral wall is equipped with the slideway (61) cooperated with sliding slot, slideway (61) peace of interior bucket (6) In the sliding slot of confining pressure bucket (1), for preventing interior bucket (6) from rotating.

5. the concrete axial compression experiment device under a kind of water confining pressure environment according to claim 1, it is characterized in that: in described The inner wall of bucket (6) is equipped with more than two support bases (63), is used to support concrete sample (7).

6. the concrete axial compression experiment device under a kind of water confining pressure environment according to claim 1, it is characterized in that: in described Bucket (6) is equipped with Steel net (64) close to the one end of piston (3), and the other end is equipped with fixed knob (62), for by interior bucket (6) from It is taken out in confining pressure bucket (1).

7. the concrete axial compression experiment device under a kind of water confining pressure environment according to claim 1, it is characterized in that: the end It covers (2) and is equipped with pad (23) close to the side of confining pressure bucket (1), for being contacted with concrete.