CN210621785U

CN210621785U - Pile foundation static load test load box containing grating skirt and guide cone

Info

Publication number: CN210621785U
Application number: CN201921454546.9U
Authority: CN
Inventors: 胡斐; 贾波; 孙廉康
Original assignee: Shaanxi Xinxi Commercial Engineering Technology Co ltd
Current assignee: Shaanxi Xinxi Commercial Engineering Technology Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-05-26
Anticipated expiration: 2029-09-03

Abstract

The utility model relates to an inspection detects authentication technical field, a pile foundation static load test who contains grid shirt rim and direction awl section of thick bamboo is with load case is disclosed, it includes two round steel plates and a plurality of jack, the through-hole has been seted up on the round steel plate, the jack is installed between two round steel plates, and around the axial lead equipartition of round steel plate, round steel plate has the shirt rim of tube-shape along its marginal welding, the welding has a plurality of main muscle on the lateral wall of the one end of jack is kept away from to the shirt rim, main muscle is along the axial lead equipartition of shirt rim, and the interval between the round steel plate be L1. The utility model has the advantages that: the main rib is connected with the round steel plate through the skirt edge, and the main rib is separated from the round steel plate by the distance L1, so that the heat transmitted to the round steel plate in the welding process of the main rib is reduced, and the risk of failure caused by the damage of a sealing ring of the jack to oil leakage is reduced.

Description

Pile foundation static load test load box containing grating skirt and guide cone

Technical Field

The utility model relates to an inspection detects authentication technical field, especially a pile foundation static load test who contains grid shirt rim and direction awl section of thick bamboo uses load box.

Background

The pile foundation static load test is the most direct method for testing the bearing capacity of the pile foundation, and the pile foundation static load test method comprises a pile loading method, an anchor pile beam method, a pile foundation self-balancing method and the like, wherein the self-balancing method does not need a large amount of pile loading or special counter-force devices, has the advantages of easiness in test development, large tonnage, low cost and the like, and is widely applied in recent years; the pile foundation self-balancing method needs to embed a load box in the pile foundation, and comprises a top steel plate, a bottom steel plate, a plurality of jacks, a settlement monitoring pipe and other parts, wherein the top steel plate and the bottom steel plate are annular steel plates with a round hole in the middle, displacement pipe holes, acoustic measurement pipe holes, oil pipe holes and the like are also arranged on the annular steel plates, corresponding pipe groups which are extended to the ground are installed, and a guide pipe penetrates through the middle round hole when concrete is poured; the load box divides into two parts about with the steel reinforcement cage of pile foundation, upper portion main muscle is connected with load box top steel sheet outer ring limit spot welding, lower part main muscle is connected with load box bottom steel sheet outer ring limit spot welding, it consolidates the connection of main muscle and top end steel sheet to use L shaped steel bar usually, the interior rampart of top steel sheet and main muscle within a definite time welding slant reinforcing bar, form lou hopper-shaped, as the direction steel plate strip of concrete pipe, because the top end steel sheet and the jack of the load box of prefabricating in the mill are together fixed, main muscle and top end steel sheet spot welding and L shaped steel bar all can produce high temperature with top end steel sheet during full weld, steel heat conductivility is good, high temperature is likely to damage the rubber seal of jack, cause the oil leak, and then lead to the jack inefficacy, cause the test.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pile foundation static load test who contains grid shirt rim and direction awl section of thick bamboo uses load box to solve the problem that current main muscle welding probably leads to the jack inefficacy on load box.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a pile foundation static load test who contains grid shirt rim and direction awl section of thick bamboo uses load box, includes two round steel plates and a plurality of jack, the through-hole has been seted up on the round steel plate, the jack is installed two between the round steel plate, and wind the axial lead equipartition of round steel plate, round steel plate has the shirt rim of tube-shape along its marginal welding, the shirt rim is kept away from the welding has a plurality of pile foundation steel reinforcement cage owner muscle on the lateral wall of the one end of jack, pile foundation steel reinforcement cage owner muscle is followed the axial lead equipartition of shirt rim, and with interval between the round steel plate is L1.

Preferably, the through hole is formed along the axial lead of the round steel plate, a protection cylinder is arranged on the round steel plate and connected with the piston rod of the jack, the protection cylinder is positioned between the two round steel plates and coaxial with the through hole, and the round steel plates are positioned in the skirt edge.

Preferably, a plurality of grid through-holes have been seted up on the lateral wall of shirt rim, the grid through-hole winds the axial lead equipartition of shirt rim, the grid through-hole is kept away from the jack, and with interval between the round steel sheet is L2, the welding of pile foundation steel reinforcement cage owner muscle is adjacent between the grid through-hole, the welding of pile foundation steel reinforcement cage owner muscle is in welding length on the lateral wall of shirt rim is L3.

Preferably, the round steel plate connected with the piston rod of the jack is provided with a plurality of guide steel plate strips, the guide steel plate strips are uniformly distributed along the edge of the through hole, and the other ends of the guide steel plate strips are welded with the skirt edge close to the piston rod of the jack.

Preferably, with the casing of jack is connected it has a plurality of reinforcement batten plates to weld on the round steel plate, it welds to consolidate the batten plate the shirt rim with the junction of round steel plate, and be located adjacently between the grid through-hole.

Compared with the prior art, the beneficial effects of the utility model are that: the pile foundation steel reinforcement cage main rib is connected with the round steel plate through the skirt edge, and the distance between the pile foundation steel reinforcement cage main rib and the round steel plate is L1, so that the heat transmitted to the round steel plate in the welding process of the pile foundation steel reinforcement cage main rib is reduced, and the risk of failure caused by oil leakage of the jack is reduced.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of the installation structure of the round steel plate;

in the figure, 1-round steel plate, 2-jack, 3-through hole, 4-skirt edge, 5-grid through hole, 6-pile foundation reinforcement cage main rib, 7-protective cylinder, 8-guide steel plate strip and 9-reinforcing batten plate.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, a load box for a pile foundation static load test, which comprises a grating skirt edge 4 and a guide cone, comprises two round steel plates 1 and a plurality of jacks 2, wherein the round steel plates 1 are provided with through holes 3, a concrete pouring pipe penetrates through the through holes 3, concrete is poured from the lower part of the lowest round steel plate 1, the jacks 2 are installed between the two round steel plates 1 and are uniformly distributed around the axial lead of the round steel plates 1, the round steel plates 1 are welded with tubular skirt edges 4 along the edges thereof, the skirt edges 4 are welded on the round steel plates 1 in a prefabrication factory, the jacks 2 are installed and then are conveyed to a construction site, a plurality of pile foundation reinforcement cage main ribs 6 are welded on the side wall of one end of the skirt edges 4, which is far away from the jacks 2, the pile foundation reinforcement cage main ribs 6 are uniformly distributed along the axial lead of the skirt edges 4, the interval between the pile foundation reinforcement cage main ribs 6 and the round steel plates 1 is L1, and the interval, the damage of a rubber sealing ring of the jack 2 caused by overheating is prevented, oil leakage is caused, the jack 2 is further caused to lose efficacy, and the specific length of the L1 is determined according to design construction requirements.

In this embodiment, as shown in fig. 1 and 2, the through hole 3 is formed along the axial line of the round steel plate 1, the round steel plate 1 connected to the piston rod of the jack 2 is provided with the protection cylinder 7, the protection cylinder 7 is located between the two round steel plates 1 and coaxial with the through hole 3, and the round steel plate 1 is located in the skirt 4. It is worth mentioning that: round steel plate 1 welds in shirt rim 4 to set up protection drum 7 and jack 2, be in inclosed cavity when making 2 initial conditions of jack, when preventing that the concrete pouring pipe from passing protection drum 7 pouring concrete, between two round steel plate 1 of concrete infiltration, influence 2 works of jack, restart jack 2 after concrete pouring is complete makes two round steel plate 1 break away from shirt rim 4, thereby keep away from each other and carry out pile foundation static test data survey.

In this embodiment, as shown in fig. 3, a plurality of grid through-holes 3 have been seted up on the lateral wall of shirt rim 4, grid through-hole 3 is around the axial lead equipartition of shirt rim 4, jack 2 is kept away from to grid through-hole 5, and with the interval between round steel plate 1 be L2, when grid through-hole 5 made things convenient for concrete placement, concrete spills over shirt rim 4 from grid through-hole 5, prevent that local incompact from appearing, pile foundation steel reinforcement cage owner muscle 6 welds between adjacent grid through-hole 3, pile foundation steel reinforcement cage owner muscle 6 welds the welding length on the lateral wall of shirt rim 4 and is L3, welding length L3 has increased the fastness that pile foundation steel reinforcement cage owner muscle 6 and shirt rim 4 are connected, the concrete length of L2 and L3 is decided according to the design construction.

In this embodiment, as shown in fig. 1 and 2, a plurality of guide steel strips 8 are arranged on the round steel plate 1 connected with the piston rod of the jack 2, the guide steel strips 8 are uniformly distributed along the edge of the through hole 3, the other end of each guide steel strip 8 is welded with the skirt 4 close to the piston rod of the jack 2, the guide steel strips 8 are conical after being welded, the preferred guide steel strips 8 and the protective cylinder 7 are integrally formed to form a guide conical cylinder, and the phenomenon that the cast pipe is clamped when the cast pipe is inserted into the cast pipe cannot be aligned with the through hole 3 is prevented.

In this embodiment, as shown in fig. 1, a plurality of reinforcing batten plates 9 are welded on the round steel plate 1 connected with the shell of the jack 2, the reinforcing batten plates 9 are welded at the joint of the skirt edge 4 and the round steel plate 1, and the processing batten plates between the adjacent grid through holes 3 enhance the extrusion force borne by the skirt edge 4, and are located between the grid through holes 5, so that the overflow of concrete influenced by the processing batten plates is avoided.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a pile foundation static test who contains grid shirt rim and direction awl section of thick bamboo uses load box, includes two round steel plate (1) and a plurality of jack (2), through-hole (3) have been seted up on round steel plate (1), jack (2) are installed two between round steel plate (1), and wind the axial lead equipartition of round steel plate (1), its characterized in that: round steel plate (1) has shirt rim (4) of tube-shape along its marginal welding, shirt rim (4) are kept away from the welding has a plurality of pile foundation steel reinforcement cage owner muscle (6) on the lateral wall of the one end of jack (2), pile foundation steel reinforcement cage owner muscle (6) are followed the axial lead equipartition of shirt rim (4), and with interval between round steel plate (1) is L1.

2. The load box for the static load test of the pile foundation comprising the grating skirt and the guide cone cylinder according to claim 1, is characterized in that: through-hole (3) are followed the axial lead of round steel plate (1) is seted up, with the piston rod of jack (2) is connected be provided with protection drum (7) on round steel plate (1), protection drum (7) are located two between round steel plate (1), and with through-hole (3) are with the axial lead, round steel plate (1) are located in shirt rim (4).

3. The load box for the static load test of the pile foundation comprising the grating skirt and the guide cone cylinder according to the claim 1 or 2, is characterized in that: seted up a plurality of grid through-holes (5) on the lateral wall of shirt rim (4), grid through-hole (5) are wound the axial lead equipartition of shirt rim (4), grid through-hole (5) are kept away from jack (2), and with interval between round steel sheet (1) is L2, pile foundation steel reinforcement cage owner muscle (6) welding is adjacent between grid through-hole (5), pile foundation steel reinforcement cage owner muscle (6) welding is in welding length on the lateral wall of shirt rim (4) is L3.

4. The load box for the static load test of the pile foundation comprising the grating skirt and the guide cone cylinder according to claim 3, is characterized in that: the round steel plate (1) is provided with a plurality of guide steel plate strips (8) connected with a piston rod of the jack (2), the guide steel plate strips (8) are uniformly distributed along the edge of the through hole (3), and the other ends of the guide steel plate strips (8) are welded with the skirt edges (4) close to the piston rod of the jack (2).

5. The load box for the static load test of the pile foundation comprising the grating skirt and the guide cone cylinder according to claim 4, is characterized in that: with the casing of jack (2) is connected the welding has a plurality of reinforcement batten plates (9) on round steel plate (1), reinforcement batten plate (9) welding is in shirt rim (4) with the junction of round steel plate (1), and is located adjacently between grid through-hole (5).