Pile foundation static load test equipment

Abstract

The utility model relates to pile foundation static load test equipment which comprises a balancing weight, and a first hanging groove and a second hanging groove are formed in the same surface of the balancing weight. The first lifting groove and the second lifting groove are used for allowing lifting hooks of a crane to extend into; a first movable rod and a second movable rod are arranged on the balancing weight and are both used for hooking the balancing weight by a lifting hook of a crane; the side wall of the first hanging groove is provided with movable holes allowing the first movable rod and the second movable rod to penetrate in a sliding mode. The movable hole is communicated with the second hanging groove; when the part of the first movable rod in the first lifting groove is reduced, the lifting hook of the crane is separated from the first lifting groove; and when the part of the second movable rod in the second lifting groove is reduced, the lifting hook of the crane is separated from the second lifting groove. The balancing weight can be conveniently taken down from the lifting hook, and the effect of reducing the labor intensity of operators is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pile foundation static load detection, and in particular to a pile foundation static load test device. BACKGROUND

[0002] Pile foundation static load test is a technology for detecting the bearing capacity of pile foundation in engineering. In determining the ultimate bearing capacity of single pile, it is the most accurate and reliable test method at present. As a basis for determining whether a dynamic load test method is mature, the comparative error of static load test results is used. The most common test method is the pile-up method, and the detection result is more intuitive.

[0003] The pile-up method generally uses a steel beam to set a bearing platform above the pile foundation, and places counterweight blocks on the bearing platform. The counterweight blocks are generally made of concrete prefabricated parts, and the concrete prefabricated parts are pre-fabricated with two lifting rings. During testing, the jack at the head of the pile foundation gradually lifts the bearing platform, thereby applying force to the pile body.

[0004] Although the pile-up method is simple to operate, it requires a crane to hoist the counterweight blocks and the steel beam to the specified position to set up the overall frame. The overall counterweight block is narrow and long, and the operator needs to walk between the two lifting rings of the counterweight block to remove the counterweight block from the lifting hook of the crane. In the static load test, the number of counterweight blocks ranges from dozens to hundreds, and the increase in the number of times the operator comes and goes undoubtedly increases the labor intensity of the operator. CONTENT OF THE INVENTION

[0005] In order to facilitate the removal of the counterweight block from the lifting hook and reduce the labor intensity of the operator, the present application provides a pile foundation static load test device.

[0006] The pile foundation static load test device provided by the present application adopts the following technical scheme:

[0007] The pile foundation static load test equipment comprises a counterweight, the same surface of the counterweight is provided with a first lifting groove and a second lifting groove; the first lifting groove and the second lifting groove are both used for the lifting hook of a crane to extend into; the counterweight is provided with a first movable rod and a second movable rod, the first movable rod and the second movable rod are both used for the lifting hook of the crane to hook the counterweight; the side wall of the first lifting groove is provided with a movable hole for the first movable rod and the second movable rod to slide through; the movable hole is communicated with the second lifting groove; when the first movable rod is moved along the length direction of the counterweight and the part of the first movable rod in the first lifting groove, the part of the first movable rod in the second lifting groove increases or decreases; when the part of the first movable rod in the first lifting groove decreases, the lifting hook of the crane is separated from the first lifting groove; when the second movable rod is moved along the length direction of the counterweight and the part of the second movable rod in the second lifting groove, the part of the second movable rod in the first lifting groove increases or decreases; when the part of the second movable rod in the second lifting groove decreases, the lifting hook of the crane is separated from the second lifting groove.

[0008] By adopting the above technical scheme, the introduction of the first movable rod and the second movable rod can change the part of the counterweight hooked by the lifting hook, i.e. matching the first lifting groove and the second lifting groove, so that the lifting hook hooks the first movable rod and the second movable rod in the first lifting groove and the second lifting groove; after the counterweight is hoisted to the designated position, the operator can move the first movable rod and the second movable rod along the length direction of the counterweight at the first lifting groove or the second lifting groove, so that the lifting hook is separated from the first lifting groove and the second lifting groove, thereby realizing the effect that the lifting hook is separated from the two connection positions at one position, facilitating the counterweight to be taken off from the lifting hook, and reducing the labor intensity of the operator.

[0009] Optionally, the inner wall of the first lifting groove and the second lifting groove opposite to the movable hole is provided with a through hole, and the first movable rod and the second movable rod pass through the through hole.

[0010] By adopting the above technical scheme, the introduction of the through hole can improve the problem that the first movable rod and the second movable rod are frequently rubbed with the counterweight, and the first movable rod or the second movable rod is difficult to replace.

[0011] Optionally, a clamp is detachably connected to the circumferential side of the first movable rod and the second movable rod, and the clamp is used to limit the first movable rod and the second movable rod from being separated from the counterweight.

[0012] By adopting the above technical scheme, the introduction of the clamp can realize the effect that the first movable rod and the second movable rod are detachably connected to the counterweight, improve the problem that the first movable rod or the second movable rod is separated from the counterweight when the counterweight is hoisted by the crane, and improve the safety of the counterweight when hoisted.

[0013] Optionally, a limiting groove is formed on the circumferential side of the first movable rod and the second movable rod, and the limiting groove is used for clamping the clasp.

[0014] By using the above technical scheme, the frequent impact of the first movable rod or the second movable rod on the counterweight block when the first movable rod or the second movable rod moves relative to the counterweight block is reduced, and the installation position of the clasp is facilitated to be determined.

[0015] Optionally, a limiting block is arranged on the inner wall of the first lifting groove and the second lifting groove, and the limiting block is used for abutting against the end surface of the first movable rod or the second movable rod away from the clasp; an avoiding groove is formed on the end surface of the first movable rod and the second movable rod away from the clasp, and the avoiding groove is arranged in the length direction of the counterweight block; the avoiding groove is used for sliding connection of the limiting block; when the first movable rod or the second movable rod is rotated, the avoiding groove and the limiting block are misaligned with each other.

[0016] By using the above technical scheme, the limiting block and the avoiding groove are introduced, when the counterweight block needs to be lifted, the avoiding groove and the limiting block are misaligned with each other, and the end surface of the first movable rod and the second movable rod abuts against the limiting block, so as to improve the problem that the first movable rod and the second movable rod move in position when the counterweight block is lifted by the crane and the lifting hook is separated from the first movable rod and the second movable rod, and further improve the lifting safety of the counterweight block. When the lifting hook needs to be separated from the counterweight block, the first movable rod and the second movable rod are rotated, the avoiding groove and the limiting block are relatively arranged, the first movable rod and the second movable rod can be moved, and the lifting hook can be separated from the counterweight block.

[0017] Optionally, a positioning groove is formed on the side wall of the first movable rod and the second movable rod away from the limiting block, and the positioning groove is arranged in the length direction of the counterweight block; a calibration groove is formed on the edge of the first lifting groove and the second lifting groove; when the positioning groove and the calibration groove are on the same horizontal line, the avoiding groove is directly opposite to the limiting block.

[0018] By using the above technical scheme, the introduction of the positioning groove and the calibration groove facilitates to directly observe the rotating position of the first movable rod and the second movable rod, so that the operator can quickly determine the relative position of the avoiding groove and the limiting block in the second lifting groove at the first lifting groove, thereby improving the lifting safety of the counterweight block and improving the efficiency of separating the lifting hook from the counterweight block.

[0019] Optionally, a lifting gap is formed between the first movable rod and the clasp, and a lifting gap is formed between the second movable rod and the clasp; the lifting gap is used for placing the lifting hook of the crane.

[0020] By adopting the technical scheme, the hooking positions of the hook and the first movable rod and the second movable rod are further limited, thereby further reducing the risk of the weight block tilting in the air during the hoisting of the weight block.

[0021] Optionally, the end of the first movable rod and the end of the second movable rod are provided with a guide slope, and the guide slope is used for guiding the hook to be separated from the first movable rod and the second movable rod.

[0022] By adopting the technical scheme, the introduction of the guide slope improves the efficiency of the hook being separated from the first movable rod and the second movable rod, thereby further improving the efficiency of the hook being separated from the weight block.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] The introduction of the first movable rod and the second movable rod enables the part of the weight block being hoisted by the hook to be changed, that is, the first hoisting groove and the second hoisting groove are matched, the hook is hooked on the first movable rod and the second movable rod in the first hoisting groove and the second hoisting groove, when the weight block is hoisted to the designated position, the operator can move the first movable rod and the second movable rod along the length direction of the weight block regardless of being at the first hoisting groove or the second hoisting groove, so as to make the hook be separated from the first hoisting groove and the second hoisting groove, thereby realizing the effect of the hook being separated from the two connection positions at one position, facilitating the weight block to be taken off from the hook, and reducing the labor intensity of the operator;

[0025] The combination of the clamping hoop and the through hole realizes the effect that the first movable rod and the second movable rod are detachably connected to the weight block, improves the problem that the first movable rod or the second movable rod is worn and inconvenient to replace due to the frequent friction between the first movable rod or the second movable rod and the weight block, improves the problem that the first movable rod or the second movable rod is separated from the weight block when the weight block is hoisted by the crane, and improves the safety of the hoisting of the weight block.

[0026] The introduction of the limiting block and the avoiding groove enables the end surface of the first movable rod and the second movable rod to abut against the limiting block when the weight block needs to be hoisted, so as to improve the problem that the hook is separated from the first movable rod and the second movable rod due to the position movement of the first movable rod and the second movable rod when the weight block is hoisted by the crane, and further improves the hoisting safety of the weight block. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a whole structure schematic diagram of an embodiment of the present application.

[0028] Figure 2 is an exploded structure schematic diagram of an embodiment of the present application.

[0029] Figure 3 is a structure schematic diagram for showing the weight block.

[0030] Figure 4 is Figure 3 An enlarged view of part A.

[0031] Figure 5 is a structural schematic diagram for showing the first movable rod.

[0032] Label explanation: 1, counterweight; 11, first lifting groove; 12, second lifting groove; 13, corner guard; 14, movable hole; 15, through hole; 16, limiting block; 17, alignment groove; 2, main beam; 3, main beam pier; 4, secondary beam; 5, secondary beam pier; 6, jack; 7, first movable rod; 71, limiting groove; 72, guide slope; 73, avoidance groove; 74, alignment groove; 8, second movable rod; 9, clamp; 10, lifting gap. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying Figures 1-5 The application is further described in detail.

[0034] The pile static load test device disclosed by the embodiments of the present application is used to facilitate the removal of the counterweight from the hook and reduce the labor intensity of the operator.

[0035] Referring to Figure 1 and Figure 2 , a pile static load test device includes a counterweight 1, a main beam 2, a main beam pier 3, a secondary beam 4, a secondary beam pier 5, and a jack 6. The counterweight 1 is a concrete prefabricated part, and the shape of the counterweight 1 is a cuboid. The main beam 2 and the secondary beam 4 are both I-beam steel beams. The main beam pier 3 and the secondary beam pier 5 are both built using the counterweight 1. The jack 6 is placed between the test pile and the main beam 2.

[0036] Referring to Figure 3 and Figure 4 , specifically, a same surface of the counterweight 1 is provided with a first lifting groove 11 and a second lifting groove 12, and the first lifting groove 11 and the second lifting groove 12 are both used for the hook of a crane to extend into. The counterweight 1 is provided with a first movable rod 7 and a second movable rod 8, and the first movable rod 7 and the second movable rod 8 are both used for the hook of the crane to hook the counterweight 1. The first lifting groove 11 and the second lifting groove 12 are consistent in structure. The first movable rod 7 and the second movable rod 8 are consistent in structure, and the difference lies in that the first movable rod 7 and the second movable rod 8 are oppositely arranged and misaligned with each other. The top corner of the counterweight 1 is fixed with a corner guard 13, so as to reduce the risk of damage of the first lifting groove 11 and the second lifting groove 12 due to impact during the transportation of the counterweight 1.

[0037] Referring to Figure 3 and Figure 4, the second hanging groove 12 and the second movable rod 8 can be obtained. The side wall of the first hanging groove 11 is provided with a movable hole 14 for the first movable rod 7 to slide through, and the movable hole 14 is communicated with the second hanging groove 12. The inner wall of the first hanging groove 11 opposite to the movable hole 14 is provided with a through hole 15, the first movable rod 7 passes through the through hole 15, and the number of the through hole 15 is consistent with the number of the movable hole 14, that is, in this example, the number of the through hole 15 and the movable hole 14 is two, which corresponds to the first movable rod 7 and the second movable rod 8 respectively.

[0038] Referring to Figure 3 and Figure 4 , when the first movable rod 7 is moved along the length direction of the counterweight 1 and located in the first hanging groove 11, the part of the first movable rod 7 located in the second hanging groove 12 increases or decreases; when the part of the first movable rod 7 located in the first hanging groove 11 decreases, the hook of the crane is separated from the first hanging groove 11. Similarly, when the part of the second movable rod 8 located in the second hanging groove 12 decreases, the hook of the crane is separated from the second hanging groove 12.

[0039] Referring to Figure 3 , Figure 4 and Figure 5 , the first movable rod 7 is detachably connected with a clamp 9 on the peripheral side, and the clamp 9 is used to limit the first movable rod 7 from being separated from the counterweight 1. The peripheral side of the first movable rod 7 is provided with a limiting groove 71, and the limiting groove 71 is used for clamping the clamp 9. The end of the first movable rod 7 close to the clamp 9 is provided with a guide inclined surface 72, which is arranged around the circumferential direction of the first movable rod 7, and the guide inclined surface 72 is used to guide the hook to separate from the first movable rod 7. The first movable rod 7 is located between the through hole 15 and the clamp 9 to form a hoisting gap 10, and the hoisting gap 10 is used for the hook of the crane to be put in. It can be understood that the hook of the crane is located on the guide inclined surface 72 during hoisting, so as to limit the position of the hook during hoisting, so as to improve the problem of tilting of the counterweight 1 during hoisting.

[0040] Referring to Figure 4 and Figure 5 , the bottom wall of the first hanging groove 11 is fixed with a limiting block 16, and the end surface of the first movable rod 7 away from the clamp 9 abuts against the limiting block 16. The end surface of the first movable rod 7 away from the clamp 9 is provided with an avoiding groove 73, which is arranged along the length direction of the counterweight 1, and the avoiding groove 73 is used for the limiting block 16 to slide and connect. When the counterweight 1 needs to be hoisted, the avoiding groove 73 and the limiting block 16 are misaligned with each other, and the end surface of the first movable rod 7 and the second movable rod 8 abuts against the limiting block 16, so as to improve the problem that the position of the first movable rod 7 and the second movable rod 8 moves and causes the hook to separate from the first movable rod 7 and the second movable rod 8 when the counterweight 1 is lifted by the crane, and improve the hoisting safety of the counterweight 1.

[0041] Referring to Figure 4 andFigure 5 The end wall of the first movable rod 7 away from the limiting block 16 is provided with a positioning groove 74 extending along the length direction of the counterweight block 1. The edge of the first hanging groove 11 is provided with a calibration groove 17. When the positioning groove 74 and the calibration groove 17 are on the same horizontal line, the avoiding groove 73 is opposite to the limiting block 16. When the hook needs to be separated from the counterweight block 1, the first movable rod 7 and the second movable rod 8 are rotated, the positioning groove 74 and the calibration groove 17 are observed, the avoiding groove 73 and the limiting block 16 are opposite, and then the first movable rod 7 and the second movable rod 8 are pulled out, so that the hook is separated from the counterweight block 1.

[0042] The implementation principle of the pile foundation static load test equipment in the embodiment of the application is as follows: the jack 6 is hoisted to the top of the test pile by the crane and placed on the test pile, the counterweight block 1 is hoisted and placed on both sides of the jack 6 to form the main beam pier 3. Then the main beam 2 is hoisted and placed on the main beam pier 3, and after the horizontal position of the main beam 2 is determined, the counterweight block 1 is hoisted and placed on both sides of the main beam 2 to form the secondary beam support pier 5. The plurality of secondary beams 4 are hoisted and placed horizontally on the secondary beam support pier 5 and the main beam 2 to form a bearing platform. Then the plurality of counterweight blocks 1 are stacked on the bearing platform. When hoisting the counterweight block 1, the operator hooks the first movable rod 7 and the second movable rod 8 with the hook and makes the first movable rod 7 and the second movable rod 8 abut on the limiting block 16. After the counterweight block 1 reaches the specified position, the first movable rod 7 and the second movable rod 8 are rotated and pulled out, so that the limiting block 16 slides into the avoiding groove 73, and the hook is separated from the first movable rod 7 and the second movable rod 8.

[0043] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A static load testing apparatus for a pile foundation, characterized by: The weight block (1) is provided with a first lifting groove (11) and a second lifting groove (12) on the same surface; the first lifting groove (11) and the second lifting groove (12) are used for the lifting hook of the crane to extend into; the weight block (1) is provided with a first movable rod (7) and a second movable rod (8), which are used for the lifting hook of the crane to hook the weight block (1); the side wall of the first lifting groove (11) is provided with a movable hole (14) for the first movable rod (7) and the second movable rod (8) to slide through; the movable hole (14) is communicated with the second lifting groove (12); When the first movable rod (7) is moved along the length direction of the weight block (1) and the part located in the first lifting groove (11) is moved, the part of the first movable rod (7) located in the second lifting groove (12) increases or decreases; when the part of the first movable rod (7) located in the first lifting groove (11) decreases, the lifting hook of the crane is separated from the first lifting groove (11); When the second movable rod (8) is moved along the length direction of the weight block (1) and the part located in the second lifting groove (12) is moved, the part of the second movable rod (8) located in the first lifting groove (11) increases or decreases; when the part of the second movable rod (8) located in the second lifting groove (12) decreases, the lifting hook of the crane is separated from the second lifting groove (12).

2. A static load testing apparatus for a pile foundation according to claim 1, characterized in that: The inner wall of the first lifting groove (11) and the second lifting groove (12) opposite to the movable hole (14) is provided with a through hole (15) penetratingly, and the through hole (15) is used for the first movable rod (7) and the second movable rod (8) to pass through.

3. A static load testing apparatus for a pile foundation according to claim 2, wherein: The first movable rod (7) and the second movable rod (8) are detachably connected with a clamp (9) on the circumferential side, and the clamp (9) is used for limiting the first movable rod (7) and the second movable rod (8) to be separated from the weight block (1).

4. A static load testing apparatus for a pile foundation according to claim 3, wherein: The first movable rod (7) and the second movable rod (8) are provided with a limiting groove (71) on the circumferential side, and the limiting groove (71) is used for the clamp (9) to be clamped in.

5. The pile static load testing apparatus according to claim 3, wherein: The inner wall of the first lifting groove (11) and the second lifting groove (12) is provided with a limiting block (16), and the limiting block (16) is used for the end surface of the first movable rod (7) or the second movable rod (8) away from the clamp (9) to abut; the end surface of the first movable rod (7) and the second movable rod (8) away from the clamp (9) is provided with an avoiding groove (73) extending along the length direction of the weight block (1); the avoiding groove (73) is used for the limiting block (16) to slide; when the first movable rod (7) or the second movable rod (8) is rotated, the avoiding groove (73) and the limiting block (16) are mutually dislocated.

6. A static load testing apparatus for a pile foundation according to claim 5, wherein: The first movable rod (7) and the second movable rod (8) are provided with a positioning groove (74) on the side wall away from the limiting block (16), and the positioning groove (74) extends along the length direction of the counterweight block (1); the counterweight block (1) is located at the edge of the first lifting groove (11) and the second lifting groove (12), and a calibration groove (17) is formed; when the positioning groove (74) and the calibration groove (17) are on the same horizontal line, the avoiding groove (73) is opposite to the limiting block (16).

7. A static load testing apparatus for a pile foundation according to claim 5, wherein: The first movable rod (7) is located between the through hole (15) and the clamp (9) to form a lifting gap (10), and the second movable rod (8) is located between the through hole (15) and the clamp (9) to form a lifting gap (10); the lifting gap (10) is used for the lifting hook of the crane.

8. The pile static load testing apparatus according to claim 1, characterized in that: The end of the first movable rod (7) and the second movable rod (8) is provided with a guide inclined surface (72), and the guide inclined surface (72) is used for guiding the lifting hook to separate from the first movable rod (7) and the second movable rod (8).

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