CN219773049U - Connection anchor disc based on pile foundation anchor pile method static load test - Google Patents

Abstract

The utility model relates to the technical field of static load tests of an anchor pile method, in particular to a connecting anchor disc based on a pile foundation anchor pile method static load test. The connecting anchor disc based on the pile foundation anchor pile method static load test is simple in structure, convenient to install and detach and high in applicability, the pile foundation steel bars can be fixed by adopting the clamping type anchor clamps through reinforcing the anchor bar pore canal, meanwhile, the designed strip pore canal is convenient for fixing and detaching the anchor bars by nuts and high-strength gaskets, and meanwhile, the anchoring length of the anchor bars is adjusted by applying initial stress to the jack, so that uniform stress is ensured, and the safety of the test process and the accuracy of the result are further ensured.

Description

Connection anchor disc based on pile foundation anchor pile method static load test

Technical Field

The utility model relates to the technical field of static load tests of an anchor pile method, in particular to a connecting anchor disc based on a pile foundation anchor pile method static load test.

Background

In recent years, with the rapid development of municipal, highway or railway projects, the static load test of the anchor pile method has stronger applicability than other static load test methods under the condition that the construction space is limited and engineering piles can be adopted as anchor piles, however, most projects have pile foundations with different diameters, symmetrically distributed anchor piles and the construction period is tight, and the static load test principle of the pile foundation anchor pile method is that a set of static load test device of the anchor pile method is adopted to connect a plurality of symmetrical anchor piles around a tested pile with a counterforce frame through anchor bars (pull rods), and the counterforce frame is jacked up through a girder when an oil pump is loaded by virtue of a jack at the pile top.

The existing static load test device of the anchor pile method is usually as follows: 1. the pile foundation steel bar is directly welded with the anchor bar (pull rod) on the counterforce frame; 2. is connected through a honeycomb anchor disc; 3. anchor disc connection designed for a certain regularly arranged pile foundation fixed length; the three connection methods have the following problems:

1. pile foundation reinforcing steel bar and anchor bar (pull rod) on the reaction frame are directly welded: the construction efficiency is low; the pile foundation is round, and the counterforce frame is rectangular, so that the steel bars connected through the anchor bars (pull rods) are not straight, and the vertical component force is not uniform;

2. is connected through a honeycomb anchor disc: compared with the first improvement, the steel bars and the anchor bars (pull rods) are anchored on the anchor disc through welding, the construction efficiency is low, the length of all the steel bars and the anchor bars (pull rods) is not ensured to be consistent after welding, and the stress is not ensured to be even;

3. anchor disc connection designed for certain regularly arranged pile foundation sizing: pile foundations with different general purposes and different diameters waste resources.

Therefore, it is necessary to provide a new connection anchor disc based on pile foundation anchor pile method static load test to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the connecting anchor disc based on the pile foundation anchor pile method static load test, the pile foundation steel bars can be fixed by adopting the clip type anchor clamps through reinforcing the anchor bar pore canal, meanwhile, the designed strip pore canal is convenient for fixing and dismounting the anchor bars by nuts and high-strength gaskets, and meanwhile, the anchoring length of the anchor bars is adjusted by applying initial stress to the jack so as to ensure uniform stress, and further ensure the safety of the test process and the accuracy of the result.

The utility model provides a connection anchor disc based on a pile foundation anchor pile method static load test, which comprises an anchor plate, wherein an upper convex disc body is fixedly embedded in a disc center of the anchor plate, and an anchor rib pore canal penetrating through the anchor plate is formed in the upper convex disc body;

both sides of the upper surface of the anchor plate are provided with strip-shaped pore canals penetrating through the anchor plate.

Preferably, the anchor bar pore canal is provided with a plurality of anchor bar pore canals which are annularly distributed on the upper convex disc body.

Preferably, a plurality of hoisting rings are fixedly embedded in the upper plate wall of the anchor plate.

Preferably, the anchor plate is sleeved on pile foundation reinforcements of the test site through the anchor bar pore canal, each pile foundation reinforcement is provided with a clamping piece type anchor clamp, and the clamping piece type anchor clamp is attached to the surface of the upper convex disc body.

Preferably, the beam built on the test site is provided with a reaction frame, a plurality of anchor bars are inserted on the reaction frame, the anchor bars are fixedly hung on the reaction frame through nuts, and a high-strength gasket is arranged between the nuts and the upper surface of the reaction frame.

Preferably, the bottom of the anchor bar passes through a strip-shaped pore channel formed in the anchor plate and is fixed on the anchor plate through a nut, and a high-strength gasket is arranged in front of the lower surfaces of the nut and the anchor plate.

Compared with the related art, the connecting anchor disc based on the pile foundation anchor pile method static load test has the following beneficial effects:

1. the utility model has simple structure, convenient assembly and disassembly and strong applicability, can meet the requirement that pile foundation reinforcing steel bars are fixed by adopting the clamping type anchor clamps through reinforcing the anchor bar pore canal, simultaneously the designed strip pore canal is convenient for fixing and disassembling the anchor bars by nuts and high-strength gaskets, and simultaneously the anchoring length of the anchor bars is adjusted by applying initial stress to the jack so as to ensure uniform stress, thereby ensuring the safety of the test process and the accuracy of the result;

2. the anchor disc is suitable for test pile loads with the same pile diameter and different pile lengths and correspondingly provided with anchor bars with different numbers for positioning, so that the applicability of the anchor disc is greatly improved, the turnover rate is improved, and the test cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a connecting anchor disc based on pile foundation anchor pile method static load test according to the present utility model;

fig. 2 is a schematic view of a connection structure of the anchor disc shown in fig. 1 on pile foundation reinforcement;

fig. 3 is a schematic diagram of a connection structure between the anchor plate and the reaction frame shown in fig. 1.

Description of the embodiments

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 to 3, a connection anchor disc based on a pile foundation anchor pile method static load test provided by an embodiment of the present utility model includes: anchor plate 1 and epirelief disk 2.

In the embodiment of the present utility model, referring to fig. 1, an upper convex plate body 2 is fixedly embedded in a plate center of the anchor plate 1, an anchor bar channel 2a penetrating through the anchor plate 1 is formed on the upper convex plate body 2, a plurality of anchor bar channels 2a are annularly distributed on the upper convex plate body 2, and strip-shaped channels 1a penetrating through the anchor plate 1 are formed on two sides of the upper surface of the anchor plate 1.

It should be noted that: the anchor disc is simple in structure, convenient to assemble and disassemble and high in applicability, the pile foundation reinforcement 4 can be fixed by adopting the clamping type anchor clamps 41 through reinforcing the anchor rib pore canal 2a, meanwhile, the designed strip pore canal 1a is convenient for fixing and disassembling the anchor rib 6 by the nut 8 and the high-strength gasket 7, and meanwhile, the anchoring length of the anchor rib 6 is adjusted by applying initial stress to the jack so as to ensure uniform stress, and further, the safety of the test process and the accuracy of the result are ensured;

the improved anchor disc is suitable for test pile loads with the same pile diameter and different pile lengths and positioning designs of anchor bars 6 with different numbers, the applicability of the anchor disc is greatly improved, the turnover rate is improved, and therefore the test cost is reduced.

Wherein, the fixed gomphosis of upper plate wall of anchor plate 1 has polylith hoist ring 3, conveniently utilizes lifting device to hoist anchor plate.

In the embodiment of the present utility model, referring to fig. 2 and 3, the anchor plate 1 is sleeved on pile foundation reinforcements 4 of the test site through an anchor bar hole 2a, and each pile foundation reinforcement 4 is provided with a clip type anchor clamp 41, and the clip type anchor clamp 41 is attached to the surface of the upper convex disc 2;

the reaction frame 5 is erected on the cross beam 51 constructed on the test site, a plurality of anchor bars 6 are inserted on the reaction frame 5, the anchor bars 6 are fixedly hung on the reaction frame 5 through nuts 8, high-strength gaskets 7 are arranged between the nuts 8 and the upper surface of the reaction frame 5, the bottoms of the anchor bars 6 penetrate through strip-shaped pore channels 1a formed in the anchor plates 1 and are fixed on the anchor plates 1 through the nuts 8, and the high-strength gaskets 7 are arranged in front of the nuts 8 and the lower surfaces of the anchor plates 1.

The connection anchor disc comprises the following concrete implementation steps:

(1) A strip-shaped anchor bar pore canal 2a is manufactured on the upward convex disc body 2 in the anchor plate 1, and the width of the anchor bar pore canal 2a gives consideration to the smooth passing of the pile foundation reinforcing steel bars 4 and meets the strength and rigidity requirements of providing counterforces after installing the clamping type anchor clamps 41 on the pile foundation reinforcing steel bars 4;

(2) According to the width of the reaction frame 5 and the sagging position of the anchor bars 6 arranged on the reaction frame, strip-shaped pore channels 1a are formed on two sides of the anchor plate 1 so as to meet the requirements of increasing and decreasing the anchor bars 6 under different reaction conditions, and the strip-shaped pore channels 1a allow the anchor bars 6 to smoothly pass through and meet the strength and rigidity requirements of providing reaction force after the anchor bars 6 are provided with the nuts 8 plus the high-strength gaskets 7;

(3) Carrying out a loading test on the anchor plate 1;

(4) After chiseling off and cleaning ash residues on pile foundation reinforcing steel bars 4, leveling the top surface of the anchor pile concrete;

(5) Hoisting the anchor plate 1 by adopting hoisting equipment, after the pile foundation steel bars 4 pass through the anchor bar pore canal 2a, lowering the anchor plate 1, checking the scale position of the anchor plate 1 corresponding to the diameter of the pile foundation, installing a clamping piece type anchor clamp 41, and tightly attaching the clamping piece type anchor clamp 41 to the horizontal upper convex disc body 2 so as to ensure that the stress of the jack is uniform after loading;

(6) The anchor bars 6 arranged on the reaction frame 5 penetrate through the strip-shaped pore canal 1a, a high-strength gasket 7 and nuts 8 are arranged, after the perpendicularity of the anchor bars 6 is adjusted, the nuts 8 are fastened to enable the effective lengths of the anchor bars 6 to be consistent, so that the stress of the jack after loading is uniform, the corresponding number of the anchor bars 6 is calculated according to the load of a test pile, and the number of the anchor bars 6 required to be arranged by different test pile loads is met by the arrangement of the strip-shaped pore canal 1 a;

(7) When the jack applies initial stress, whether the steel bar clamping type anchor clamps 41, the pile foundation steel bars 4, the anchor bars 6 and the nuts 8 are fastened or not is checked and adjusted, so that the loading safety and the stress uniformity are ensured;

(8) After the test is completed, the disassembly is performed according to the reverse order during the installation, and the work is completed.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. The connecting anchor disc based on the pile foundation anchor pile method static load test is characterized by comprising an anchor plate (1), wherein an upper convex disc body (2) is fixedly embedded in a disc center of the anchor plate (1), and an anchor bar pore canal (2 a) penetrating through the anchor plate (1) is formed in the upper convex disc body (2);

both sides of the upper surface of the anchor plate (1) are provided with strip-shaped pore channels (1 a) penetrating through the anchor plate (1).

2. The connecting anchor disc based on pile foundation anchor pile method static load test according to claim 1, wherein the anchor bar pore canal (2 a) is provided with a plurality of anchor bar pore canals which are distributed on the upper convex disc body (2) in a ring shape.

3. The connecting anchor disc based on pile foundation anchor pile method static load test according to claim 1, wherein a plurality of hoisting rings (3) are fixedly embedded in the upper plate wall of the anchor plate (1).

4. The connection anchor disc based on the pile foundation anchor pile method static load test according to claim 1, wherein the anchor plates (1) are sleeved on pile foundation reinforcements (4) of a test site through anchor bar pore canals (2 a) formed in the anchor plates, and each pile foundation reinforcement (4) is provided with a clip type anchor clamp (41), and the clip type anchor clamp (41) is attached to the surface of the upper convex disc body (2).

5. The connection anchor disc based on pile foundation anchor pile method static load test according to claim 1, characterized in that a reaction frame (5) is erected on a cross beam (51) built on a test site, a plurality of anchor bars (6) are inserted on the reaction frame (5), the anchor bars (6) are fixedly hung on the reaction frame (5) through nuts (8), and a high-strength gasket (7) is arranged between the nuts (8) and the upper surface of the reaction frame (5).

6. The connection anchor disc based on the pile foundation anchor pile method static load test according to claim 5, wherein the bottom of the anchor bar (6) penetrates through a strip-shaped pore channel (1 a) formed in the anchor plate (1) and is fixed on the anchor plate (1) through a nut (8), and a high-strength gasket (7) is arranged in front of the nut (8) and the lower surface of the anchor plate (1).