CN2589515Y

CN2589515Y - Ground anchor having anchoring force

Info

Publication number: CN2589515Y
Application number: CN 02289139
Authority: CN
Inventors: 徐德修; 吴佳原
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-04
Filing date: 2002-12-04
Publication date: 2003-12-03
Anticipated expiration: 2012-12-04

Abstract

The utility model relates to a ground anchor device having large anchoring force. The utility model is mainly pivoted with a plurality of expanding and supporting anchors under an inner bag which is fixedly arranged on one end of an anti-pulling material through the utilization of a convex lug, each expanding and supporting anchor is assembled with a steel bar and a strong force stretching spring which are matched with the flat pointed end of the front end of the steel bar through the utilization of a sleeve cylinder, and the steel bar and the strong force stretching spring are at ordinary times tightly attached to the outside of the inner bag. When the utility model is inserted in the soil deep hole of a prearranged anchorage, after the inner bag is pressurized and inflated and each expanding and supporting anchor is expanded and supported, the steel bar is inserted in the soil of the circumference of the inner bag by the strong force stretching spring through the utilization of the flat pointed end, and an expanding ground anchor device having large anchoring force which can truly enlarge the expanding and supporting diameter and the expanding and supporting area and can effectively increase the bearing pulling force of soil is formed.

Description

The ground anchorage of strong anchoring force

Technical field

The utility model relates to a kind of ground anchorage of strong anchoring force, refer in particular to a kind of be applied to expand the formula earth anchor and be provided with the nature expanded support in the termination group launch to increase the earth anchor of anchoring force.

Background technology

General soil is subjected to the influence of heavy rain that groundwater table is raise, and soil moisture content increases, and its relative intensity of shear but decreases, even makes its active earth pressure be easy to exceed tolerance limit, causes the soil-baffling structure damage; So utilize various different structure to be one of the most feasible mode as the firmware of constructing undreground works according to the anchorage of different rock-layers or soil.

Tiltable or vertically disposed earth anchor mainly are to be combined by anchor body and tensile material; Tensile material one end sets firmly the anchor body and gos deep into the stratum certain depth, and in addition end then protrudes the surface and is connected with various structures, and this anchor body is good with certain proportion greater than the sectional area of tensile material, makes it effectively to increase the intensity of tension, increases stablizing of structure by this.

As shown in Figure 8, be provided with expandable anchor rod 12 to increase the carrying pulling force in anchor body 11 termination groups; Just like Fig. 9, shown in Figure 10, group is provided with flesh bag 14 in the termination of tensile material 13 in addition, after inserting soil layer, utilizes tensile material 13 interior pipes to be pressurizeed and makes flesh bag 14 expand into certain diameter, increases the carrying pulling force with this; Be the anchor rod 12 of this structure or scope homogeneous phase that flesh bag 14 is increased when limited, the carrying pulling force that can increase is also limited, and flesh bag 14 dilate the phenomenon that can setover because of soil texture influence generation, for carrying pulling force certain harmful effect be arranged.

Summary of the invention

Main purpose of the present utility model is to provide a kind of ground anchorage that strengthens anchoring force and enlarge the strong anchoring force of loaded area.

For achieving the above object, the ground anchorage of the strong anchoring force that the utility model provides includes: a tensile material, be installed with the flesh bag in the soil depth that inserts predetermined anchorage, and establish pipeline in the tensile material to the voltage supply of flesh bag; Utilize lug to articulate several exhibition support anchors is close to around the flesh bag in the tensile material bottom; This exhibition support anchor is combined by sleeve, rod iron and extension spring; Rod iron is inserted in the sleeve that articulates with lug, and a recess is fixed and be provided with to rear end and extension spring, is fastened the fastener that the rod iron that prevents to be close to ejects in the recess on snapping one tensile material, and extension spring is held in addition and is fixedly arranged on socket end.

The ground anchorage of above-mentioned strong anchoring force, exhibition support anchor wherein, its rod iron top can be provided with the flat tip of equivalent area.

The ground anchorage of above-mentioned strong anchoring force, exhibition support anchor wherein, the quantity that increase group is according to need established.

According to technique scheme, support anchors by several the exhibitions that flesh bag bottom articulates, utilize groups of springs to be provided with flat point rod iron in each exhibition support anchor, when enlarging with the pressurization of flesh bag, each exhibition retaining anchor launches thereupon, and after the exhibition support, flat point rod iron is suppressed in the soil layer that inserts around the flesh bag by spring, can obtain being several times as much as in the past carrying pulling force with this, and become a kind of expansion formula ground anchorage that strengthens anchoring force.In addition, the ground anchorage of above-mentioned strong anchoring force, also enlarge the expansion formula earth anchor of loaded area, have pulling capacity that can effectively improve earth anchor and the effect that effectively increases the long-term strong fix of structure by this when being applied to the low soil of soft soil or intensity of shear by exhibition support.

For technological means, inventive features that the utility model is used, reach purpose and effect is easy to understand, cooperation figure accompanying drawing is described in detail as follows now:

Description of drawings

Fig. 1: combining structure schematic diagram of the present utility model (when exhibition is not supportted).

Fig. 2: exhibition support anchor apex structure enlarged diagram of the present utility model.

Fig. 3: exhibition support anchor of the present utility model bottom structure enlarged diagram.

Fig. 4: the utility model inserts the structural representation in the soil.

Fig. 5: the utility model inserts the schematic top plan view in the soil.

Fig. 6: the utility model inserts the schematic diagram after the exhibition support in the soil.

Fig. 7: the utility model inserts exhibition support back schematic top plan view in the soil.

Fig. 8: expansion formula ground anchor structure of commonly using and construction schematic diagram thereof.

Fig. 9: the expansion formula earth anchor structural representation that another is commonly used.

Figure 10: another expansion formula earth anchor of commonly using inserts the schematic diagram in the soil.

The specific embodiment

At first, see also Fig. 1-shown in Figure 3, ground anchorage of the present utility model utilizes lug 21 to be articulated with several exhibition support anchors 3 in an end of tensile material 2 to be close to closing with flesh bag 22; This exhibition support anchor 3 is combined by sleeve 31, rod iron 32, extension spring 33; Be inserted in the rod iron 32 overcoat extension springs 33 in the sleeve 31, these extension spring 33 1 ends are fixed in sleeve 31 tail ends, it is fixing with rod iron 32 that the other end then passes rod iron 32, and rod iron 32 has a recess 312 and can insert rod iron 32 can not ejected for being connected with fastener 23 on tensile material 2; In addition, rod iron 32 outer ends can form the flat tip 322 of an equivalent area.

When this earth anchor as shown in Figure 4, the earth anchor that support not launches pushes to (seeing also shown in Figure 5) behind the soil depth of predetermined anchorage, pressurize by the pipelines 24 in the tensile material 2 and to be made 22 expansions of flesh bag, and gradually each exhibition support anchor 3 is outwards expanded to support and come, and in the time of the exhibition support, this exhibition support anchor 3 have certain outwards split the strength of pulling and in soil gradually exhibition support to certain angle, the recess 311 of rod iron 32 also breaks away from and the contacting of fastener 23 gradually, when disengaging fully in a flash, powerful extension spring 33 will force rod iron 32 to eject in sleeve 31, and the flat tip 322 that cooperates front end makes it to launch fully and inserts in the soil layer around the flesh bag 22 (as Fig. 6, shown in Figure 7) make it effectively increase area of exhibition support and increase by this and the grabbing and stretching resistance of soil, and according to need again the appropriateness area that increases the quantity of exhibition support anchor 3 or increase flat tip 322 all can increase required carrying pulling force again.

Textural association by said elements and implementing as can be known, the utility model is compared and is had following plurality of advantages with commonly using device, as:

1. the bulbous anchor body that expansion produced that utilizes the flesh bag has the advantage of expanding earth anchor concurrently simultaneously to increase outside the stretching resistance, can effectively increase the stretching resistance with soil, and the consolidation that increases earth anchor and structure is firm.

Expansion support the exhibition support anchor come can be to the angle of setting in the exhibition support, by the extension spring of brute force rod iron is promoted to insert in the soil, formation can protrude out the structure of making to strengthen the scope of grabbing with effective exhibition support, and increases the stretching resistance with soil again.

3. the front end of exhibition support anchor is provided with the flat tip of equivalent area, can make the rod iron At time of eject promote smoothly to insert in the soil, and its flat increased area will be the effective assurance that increases stretching resistance.

4. if the area that increases the quantity of exhibition support anchor again or strengthen flat tip all can make the carrying pulling force after this device effectively increases anchorage again.

5. ground anchorage of the present utility model is suitable for soft soil or the low soil layer of intensity of shear relatively, and building thing on the soil layer for these structural properties has suitable firm firm effect.

6. exhibition support ground tackle has to split and pulls the strength that soil comes, and can make the expansion of flesh bag comparatively average, significantly reduces the shortcoming of flesh bag biasing.

Claims

1. the ground anchorage of a strong anchoring force includes:

One tensile material is installed with the flesh bag in the soil depth that inserts predetermined anchorage, establishes pipeline in the tensile material to the voltage supply of flesh bag;

It is characterized in that:

Utilize lug to articulate several exhibition support anchors is close to around the flesh bag in the tensile material bottom; This exhibition support anchor is combined by sleeve, rod iron and extension spring; Rod iron is inserted in the sleeve that articulates with lug, and a recess is fixed and be provided with to rear end and extension spring, is fastened the fastener that the rod iron that prevents to be close to ejects in the recess on snapping one tensile material, and extension spring is held in addition and is fixedly arranged on socket end.

2. the ground anchorage of strong anchoring force as claimed in claim 1 is characterized in that: exhibition support anchor wherein, its rod iron top can be provided with the flat tip of equivalent area.

3. the ground anchorage of strong anchoring force as claimed in claim 1 is characterized in that: exhibition support anchor wherein, the quantity that increase group is according to need established.