CN205329738U

CN205329738U - Novel umbelliform ground bearing capacity detecting device

Info

Publication number: CN205329738U
Application number: CN201620092721.4U
Authority: CN
Inventors: 王永生; 许琨; 徐瑞华
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2016-01-31
Filing date: 2016-01-31
Publication date: 2016-06-22
Anticipated expiration: 2026-01-31

Abstract

The utility model provides a comparatively simple and convenient novel umbelliform ground bearing capacity detecting device. Detection device includes earth anchor, stand and oblique pull rod, and the stand upper end links to each other with oblique pull rod, and the pull rod draws the seat continuous with vertical counter force to one side, and the first base setting that vertical counter force drew foot stall portion is in the roof beam is pressed to the counter -force, and the second base on the earth anchor also sets up in the roof beam is pressed to the counter -force, and vertical counter force draws seat and crossbeam to link to each other, and the crossbeam links to each other bottom the stand. Compared with the prior art, the utility model discloses test's expense is hanged down, and the counter weight that needs is also few, and it is convenient that operation and removal are all compared.

Description

A kind of novel umbrella foundation bearing capacity detecting device

Technical field

This utility model relates to and belongs to building detection field, is specifically related to a kind of counter force detection device。

Background technology

According to JGJ340-2015 " building lot inspection specifications " 4 soil (rock) foundation loading test regulation, counterforce device many employings ballasting platform counterforce device, in order to provide the counter-force of hydraulic jack。This method is also most common method in foundation detection, but the testing expenses of existing detecting device are high, and needs to use more counterweight, cumbersome。

Utility model content

For solving the shortcoming of foundation load experiment detection device not Portable belt described in background technology, inconvenience movement, this utility model provides a kind of relatively simple novel umbrella foundation bearing capacity detecting device。

The technical solution of the utility model is achieved in that a kind of novel umbrella foundation bearing capacity detecting device, including earth anchor, column and brace, column upper end is connected with brace, brace is connected with vertical counter-force pulling seat, the first base bottom vertical counter-force pulling seat is arranged in counter-force pressure beam, the second base on earth anchor is also disposed in counter-force pressure beam, and vertical counter-force pulling seat is connected with crossbeam, and crossbeam is connected with column bottom。

Described column includes hollow cylinder, and hollow cylinder top and bottom welding have circular slab, hollow cylinder top and bottom to be respectively welded with four groups of bolts connection key seats。

Described brace includes branch sleeve, and branch sleeve two ends are connected with pull bar by screw thread, and tie rod end is connected by bearing pin with being connected key seat。

Compared with prior art, the expense of this utility model testing inspection is low, it is necessary to counterweight also few, operation and mobile all more convenient。

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。

Fig. 1 is schematic diagram of the present utility model。

Fig. 2 is the structural representation of column。

Fig. 3 is the top view of Fig. 2。

Fig. 4 is the structural representation of brace。

Fig. 5 is the structural representation of vertical counter-force pulling seat。

Fig. 6 is the structural representation of crossbeam。

Fig. 7 is the top view of Fig. 6。

Fig. 8 is the structural representation of counter-force pressure beam。

Fig. 9 is the left view of Fig. 8。

Figure 10 is the structural representation of earth anchor。

Wherein: 1. column, 1-1. hollow cylinder, 1-2. circular slab, 1-3. bolt connects key seat, 2. brace, 2-1. branch sleeve, 2-2. pull bar, 3. vertical counter-force pulling seat, 3-1. the first base, 4. crossbeam, 5. counter-force pressure beam, 6. earth anchor, 6-1. the second base。

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into the scope of this utility model protection。

As shown in Fig. 1 ~ 10, a kind of novel umbrella foundation bearing capacity detecting device, including earth anchor 6, column 1 and brace 2, column 1 upper end is connected with brace 2, brace 2 is connected with vertical counter-force pulling seat 3, and the first base 3-1 bottom vertical counter-force pulling seat 3 is arranged in counter-force pressure beam 5, and the second base 6-1 on earth anchor 6 is also disposed in counter-force pressure beam 5, vertical counter-force pulling seat 3 is connected with crossbeam 4, and crossbeam 4 is connected with bottom column 1。

This novel practical adds crossbeam 4 and counter-force pressure beam 5 on the basis of existing cable-stayed type counterforce device, not only makes earth anchor 6 can provide bigger counter-force, and makes device avoid because earth anchor 6 unstable phenomenon is occurred by excessive oblique pulling effect。Additionally, can also according to actual requirement of engineering, at the enterprising windrow weight of crossbeam 4, to provide bigger counter-force, adapt to different testing conditions, simultaneously in whole device, all rod members are all only limited by tension and compression active force, take full advantage of the mechanical characteristic of steel, reduce the quality of whole device, effectively save resource。

Preferably, as shown in Figures 2 and 3, described column 1 includes hollow cylinder 1-1, and hollow cylinder 1-1 top and bottom welding have circular slab 1-2, hollow cylinder 1-1 top and bottom to be respectively welded with four groups of bolts connection key seat 1-3。

The circular slab 1-2 that hollow cylinder 1-1 top and bottom are respectively welded is the active force bearing bottom jack, it addition, for preventing column from rolling when horizontal positioned, it is also possible to it is respectively symmetrically four reinforcing bars of welding in hollow cylinder 1-1 surrounding。

Further, as shown in Figure 4, described brace 2 is included branch sleeve 2-1, branch sleeve 2-1 two ends and is connected with pull bar 2-2 by screw thread, and pull bar 2-2 end is connected key seat 1-3 and is connected with bolt。After so arranging, the length of brace 2 can regulate, it is possible to is effectively ensured the degree of stability of whole device。Brace 2 is divided into four groups, and top is connected by bolt with column 1, and bottom and crossbeam 4 are commonly connected to vertical counter-force pulling seat 3 top, are bolted。

As shown in Figure 8 and Figure 9, counter-force pressure beam 5 is welded by two ends by two U-shaped steel, and space is left in centre, and to facilitate vertical counter-force pulling seat from middle traverse, two ends with reinforcement welding, act primarily as fixation, do not stress respectively。Counter-force pressure beam 5 two ends are connected with earth anchor 6 by screw rod。Earth anchor 6 is buried middle offer vertically pulling-resistant power by manpower or power auger。

In the application, vertical counter-force pulling seat 3 bottom welding the first base 3-1, pressing beam 5 that top active force is delivered to earth anchor 6 by counter-force, vertical counter-force pulling seat 3 top employing two bar bending side by side becomes U-shaped hook to be welded on the steel pipe of bottom, and U-shaped hook and brace 2, crossbeam 4 are bolted。Totally four, crossbeam 4, symmetry is radiated by centre in same level towards periphery around column, and one end is connected with bottom column 1, and the other end is connected with vertical counter-force pulling seat 3 top, bears pressure, is also key point of the present utility model。

Actual application is embodied as step as follows:

(1) true fixed pile, axis, jack position, adopts tape measure to be measured certain distance by center to surrounding symmetry, it is determined that the particular location of vertical counter-force pulling seat 3, and then determines counter-force pressure beam 5 and earth anchor 6 position。

(2) utilize rig to squeeze in soil by earth anchor 6, place vertical counter-force pulling seat 3, dispose counter-force pressure beam 5 to be connected by nut, nut certain thickness backing plate placed below。

(3) being linked together in brace 2 and column 1 top, two people lift and are placed on the jack placed in advance, stand and directly put surely, and then four groups of brace bottoms are connected fixing by two people respectively with vertical counter-force pulling seat top。

(4) being placed on by crossbeam 4 between column 1 and vertical counter-force pulling seat 3, two ends connect respectively through bolt, finally by the pull bar regulated on brace, whole device adjustment is stably firm, complete the installation of whole device。

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model。

Claims

1. a novel umbrella foundation bearing capacity detecting device, including earth anchor (6), column (1) and brace (2), it is characterized in that: column (1) upper end is connected with brace (2), brace (2) is connected with vertical counter-force pulling seat (3), first base (3-1) of vertical counter-force pulling seat (3) bottom is arranged in counter-force pressure beam (5), the second base (6-1) on earth anchor (6) is also disposed in counter-force pressure beam (5), vertical counter-force pulling seat (3) is connected with crossbeam (4), and crossbeam (4) is connected with column (1) bottom。

2. novel umbrella foundation bearing capacity detecting device according to claim 1, it is characterized in that: described column (1) includes hollow cylinder (1-1), hollow cylinder (1-1) top and bottom welding have circular slab (1-2), hollow cylinder (1-1) top and bottom to be respectively welded with four groups of bolts connection key seat (1-3)。

3. novel umbrella foundation bearing capacity detecting device according to claim 1, it is characterized in that: described brace (2) includes branch sleeve (2-1), branch sleeve (2-1) two ends are connected with pull bar (2-2) by screw thread, and pull bar (2-2) end is connected by bearing pin with being connected key seat (1-3)。