CN217679309U

CN217679309U - Compression-resistant static load test reference pile system

Info

Publication number: CN217679309U
Application number: CN202221172962.1U
Authority: CN
Inventors: 黄浩; 余巍
Original assignee: Nanjing Seu Geotechnical Engineering Investigation And Design Research Institute Co ltd
Current assignee: Nanjing Seu Geotechnical Engineering Investigation And Design Research Institute Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-10-28
Anticipated expiration: 2032-05-16

Abstract

The utility model provides a resistance to compression static test is with benchmark stake system, including vertical setting subaerial first benchmark stake, second benchmark stake, third benchmark stake and fourth benchmark stake, be connected with first crossbeam between first benchmark stake and the second benchmark stake, be connected with the second crossbeam between third benchmark stake and the fourth benchmark stake, first crossbeam and second crossbeam parallel arrangement, the line of first benchmark stake and third benchmark stake is on a parallel with the line of second benchmark stake and fourth benchmark stake, is connected with scalable fastener between first crossbeam and the second crossbeam. The system has stable and reliable structure and is beneficial to improving the measurement precision.

Description

Compression-resistant reference pile system for static load test

Technical Field

The utility model relates to a building engineering detects technical field, concretely relates to resistance to compression is benchmark stake system for static load test.

Background

According to the requirements on engineering quality, the pile foundation needs to be detected on a construction site, and the main methods for detecting the common pile foundation at present include a static load test, a core drilling method, a low strain method, a high strain method, a sound wave transmission method and the like. The single-pile static load test is the most direct and reliable traditional method for detecting the vertical compression bearing capacity of the foundation pile which is generally accepted at present. The test selectable counter-force devices comprise an anchor pile counter-force device, a ballast platform counter-force device, an anchor pile ballast combined counter-force device and a ground anchor counter-force device according to field conditions. Whichever counterforce is chosen, the reference pile system must be robust.

However, in engineering practice, the problems of the reference pile can be ignored by detection personnel sometimes, for example, the reference pile shakes, displacement is generated in the test process, and the problems that the driving depth of the reference pile is insufficient when the soil layer is hard, the cross beam is heavy, or after the influence of the detection environment, the deflection deformation of the cross beam is large, the connection between the cross beam and the base pile is not firm and the like easily occur.

Disclosure of Invention

For overcoming the not enough of prior art, the utility model provides a resistance to compression is benchmark stake system for static load test, stable in structure, reliable is favorable to promoting measurement accuracy.

In order to realize the above-mentioned purpose, the utility model discloses a resistance to compression is benchmark stake system for static load test includes vertical setting subaerial first benchmark stake, second benchmark stake, third benchmark stake and fourth benchmark stake, be connected with first crossbeam between first benchmark stake and the second benchmark stake, be connected with the second crossbeam between third benchmark stake and the fourth benchmark stake, first crossbeam and second crossbeam parallel arrangement, the line of first benchmark stake and third benchmark stake is on a parallel with the line of second benchmark stake and fourth benchmark stake, be connected with scalable fastener between first crossbeam and the second crossbeam.

Furthermore, scalable fastener includes the telescopic link, and the both ends of telescopic link are equipped with respectively and are used for with first crossbeam or second crossbeam complex draw-in groove, and the draw-in groove is U type groove, and the internal diameter of draw-in groove is the same with the external diameter of first crossbeam or second crossbeam.

Furthermore, the reference pile adopts an electro-hydraulic telescopic rod piece, and the bottom of the reference pile is set to be a cone.

Furthermore, a connecting lock catch is respectively connected between the first reference pile and the first cross beam and between the third reference pile and the second cross beam, the connecting lock catch comprises 3 lock rods connected in a triangular shape, and the first reference pile and the first cross beam, and the third reference pile and the second cross beam are respectively and fixedly connected through the connecting lock catch.

Furthermore, limiting devices are connected between the second reference pile and the first cross beam and between the fourth reference pile and the second cross beam respectively, each limiting device comprises a clamping block connected to the second reference pile or the fourth reference pile, the first cross beam or the second cross beam is installed on the clamping block, and an adjustable clamping piece used for clamping the first cross beam or the second cross beam is arranged on the clamping block.

Furthermore, oblique rod pieces are connected between the first reference pile and the third reference pile and between the second reference pile and the fourth reference pile respectively.

The utility model discloses a resistance to compression is benchmark stake system for static load test can ensure the depth that the underground was squeezed into to the benchmark stake to stability is good, and simple to operate can also retrieve used repeatedly.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a reference pile system for a compression static load test according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram for showing the connection relationship between the connecting lock catch and the first reference pile and the first cross beam.

Fig. 3 is a schematic structural diagram for showing the connection relationship between the fiber device and the second reference pile and the first cross beam.

Fig. 4 is a schematic structural view for embodying the retractable fastener.

Reference numerals: 101. a first reference pile; 102. a second reference pile; 103. a third reference pile; 104. a fourth reference pile; 201. a first cross member; 202. a second cross member; 3. connecting a lock catch; 4. a limiting device; 5. an oblique rod member; 6. a retractable fastener.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides a reference pile system for anti-pressure static load test, including a first reference pile 101, a second reference pile 102, a third reference pile 103 and a fourth reference pile 104 vertically disposed on the ground, a first beam 201 is connected between the first reference pile 101 and the second reference pile 102, a second beam 202 is connected between the third reference pile 103 and the fourth reference pile 104, the first beam 201 and the second beam 202 are parallel disposed, and the connecting line of the first reference pile 101 and the third reference pile 103 is parallel to the connecting line of the second reference pile 102 and the fourth reference pile 104.

As shown in fig. 2, the reference pile adopts an electro-hydraulic telescopic rod, and the bottom of the reference pile is provided with a cone. The resistance of the pile penetrating into the soil can be reduced, the telescopic rod piece is pressed into the soil by taking the concrete counterweight as a counter force, and the driving depth of the reference pile can be guaranteed.

As shown in fig. 1 and 2, the connecting latches 3 are respectively connected between the first reference pile 101 and the first beam 201, and between the third reference pile 103 and the second beam 202, the connecting latches 3 include 3 locking levers connected in a triangular shape, and the connecting latches 3 respectively and fixedly connect the first reference pile 101 and the first beam 201, and the third reference pile 103 and the second beam 202.

As shown in fig. 1 and 3, the limiting device 4 is connected between the second reference pile 102 and the first beam 201, and between the fourth reference pile 104 and the second beam 202, the limiting device 4 includes a clamping block connected to the second reference pile 102 or the fourth reference pile 104, the first beam 201 or the second beam 202 is mounted on the clamping block, and the clamping block is provided with an adjustable clamping piece for clamping the first beam 201 or the second beam 202. The second reference pile 102 is simply connected with the first beam 201 and the fourth reference pile 104 is simply connected with the second beam 202 through the limiting device 4.

As shown in fig. 1 and 4, a retractable fastener 6 is connected between the first beam 201 and the second beam 202. Scalable fastener 6 includes the telescopic link, and the both ends of telescopic link are equipped with respectively and are used for with first crossbeam 201 or second crossbeam 202 complex draw-in groove, and the draw-in groove is U type groove, and the internal diameter of draw-in groove is the same with the external diameter of first crossbeam 201 or second crossbeam 202, has strengthened the horizontal stability of crossbeam.

As shown in fig. 1, diagonal rod members 5 are connected between the first reference pile 101 and the third reference pile 103, and between the second reference pile 102 and the fourth reference pile 104, respectively, so as to enhance the lateral stability of the reference piles.

The specific implementation process comprises the following steps: during construction, a first reference pile 101, a second reference pile 102, a third reference pile 103 and a fourth reference pile 104 are pressed in, the pressing in is stopped after the pressing in is carried out to a set depth, a first cross beam 201 and the first reference pile 101, a second cross beam 202 and the third reference pile 103 are respectively and fixedly connected through a connecting lock catch 3, and the first cross beam 201 and the second reference pile 102, and the second cross beam 202 and the fourth reference pile 104 are respectively and simply connected through a limiting device 4; then, the first reference pile 101 and the third reference pile 103, and the second reference pile 102 and the fourth reference pile 104 are respectively fixedly connected through the diagonal member 5; finally, the first beam 201 and the second beam 202 are transversely connected through the telescopic clamping piece, and a stable and reliable reference pile system is formed.

The above detailed description merely describes preferred embodiments of the present invention, and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The utility model provides a resistance to compression static test is with benchmark stake system, its characterized in that, including vertical setting subaerial first benchmark stake, second benchmark stake, third benchmark stake and fourth benchmark stake, be connected with first crossbeam between first benchmark stake and the second benchmark stake, be connected with the second crossbeam between third benchmark stake and the fourth benchmark stake, first crossbeam and second crossbeam parallel arrangement, the line of first benchmark stake and third benchmark stake is on a parallel with the line of second benchmark stake and fourth benchmark stake, be connected with scalable fastener between first crossbeam and the second crossbeam.

2. The reference pile system for the compression-resistant static load test as recited in claim 1, wherein the retractable fastener comprises a retractable rod, two ends of the retractable rod are respectively provided with a clamping groove for being matched with the first beam or the second beam, the clamping groove is a U-shaped groove, and the inner diameter of the clamping groove is the same as the outer diameter of the first beam or the second beam.

3. The reference pile system for the compression static load test is characterized in that the reference pile is an electro-hydraulic telescopic rod piece, and the bottom of the reference pile is arranged to be a cone.

4. The reference pile system for the compression-resistant static load test according to claim 1, wherein connecting latches are respectively connected between the first reference pile and the first beam and between the third reference pile and the second beam, the connecting latches comprise 3 locking rods connected in a triangular shape, and the connecting latches respectively fixedly connect the first reference pile and the first beam and the third reference pile and the second beam.

5. The reference pile system for the compression-resistant static load test as recited in claim 1, wherein limiting devices are respectively connected between the second reference pile and the first beam and between the fourth reference pile and the second beam, the limiting devices comprise clamping blocks connected to the second reference pile or the fourth reference pile, the first beam or the second beam is mounted on the clamping blocks, and adjustable clamping pieces for clamping the first beam or the second beam are arranged on the clamping blocks.

6. The reference pile system for the compression-resistant static load test according to claim 1, wherein an inclined rod member is connected between the first reference pile and the third reference pile, and between the second reference pile and the fourth reference pile, respectively.