CN204228008U - A kind of tunnel portal explosion three-dimensional protector being close to existing building - Google Patents

Abstract

The utility model embodiment provides a kind of tunnel portal explosion three-dimensional protector being close to existing building, relate to blast working field, not only control the harm of tunnel portal blasting flyrock to existing buildings or structures completely, and also ensure that the safety of life and property of the people, completely avoid the phenomenon of constructing and disturbing residents.Described protector comprises: the rubber big gun quilt set gradually at tunnel portal, geotechnological layer of cloth, iron wire stratum reticulare and waterproof lamellar; In the outer left and right sides of described tunnel portal and front, hole certain distance, the double-deck scaffold of setting; Described double-deck scaffold sets up diagonal brace and bridging; Often arrange on scaffold and one deck bamboo chip is all installed, the scaffold in front, hole arranges the gate of free switch, described gate is also provided with bamboo chip; The top of described double-deck scaffold is provided with the double-deck iron silk screen of a use No. 8 iron wires formation, lays one deck splash guard in the middle of the two-layer wire netting of described double-deck iron silk screen.

Description

A kind of tunnel portal explosion three-dimensional protector being close to existing building

Technical field

The utility model relates to blast working field, particularly relates to a kind of tunnel portal explosion three-dimensional protector being close to existing building.

Background technology

Along with the development of China's economic technology, the construction project in highway and railway tunnel of growing up is of common occurrence, the construction technology of major long tunnel is also advanced by leaps and bounds, the constructing tunnel of contiguous existing buildings or structures also emerges in an endless stream, and when the tunnel of contiguous existing buildings or structures carries out construction of explosion, especially when tunnel portal carries out blast working, if do not carry out protecting or protect improper, cause cannot carry out effectively flyrock protection or cannot buffer shooting shock wave to the destruction of safeguard structure, so the harm of Tunnel Blasting construction will cannot be estimated, not only waste manpower greatly, material resources and financial resources, and will be all fatal for the destruction of existing buildings or structures and the life security of the people.

Utility model content

Embodiment of the present utility model provides a kind of tunnel portal explosion three-dimensional protector being close to existing building, not only control the harm of tunnel portal blasting flyrock to existing buildings or structures completely, and also ensure that the safety of life and property of the people, completely avoid the phenomenon of constructing and disturbing residents.

For achieving the above object, embodiment of the present utility model adopts following technical scheme:

Be close to a tunnel portal explosion three-dimensional protector for existing building, comprise:

Be arranged on the combination flexible gun quilt of tunnel portal, described combination flexible gun is included: the rubber big gun quilt set gradually, geotechnological layer of cloth, iron wire stratum reticulare and waterproof lamellar; Described combination flexible gun is fixed on the rock mass of the top, top, hole of described tunnel portal and ground by iron wire; In the outer left and right sides of described tunnel portal and front, hole certain distance, arrange the double-deck scaffold of 50cm × 50cm, described double-deck scaffold is fixed on the ground by anchor; The absolute altitude that described double-deck scaffold height exceeds described tunnel portal is not less than 1m, and array pitch is 50cm; Described double-deck scaffold sets up diagonal brace and bridging; Often arrange on scaffold and one deck bamboo chip is all installed, the scaffold in front, hole arranges the gate of free switch, described gate is also provided with bamboo chip;

The top of described double-deck scaffold is provided with the double-deck iron silk screen of 50cm × 50cm that a use No. 8 iron wires are formed, and the top of the described double-deck scaffold set up is coupled together; One deck splash guard is laid in the middle of the two-layer wire netting of described double-deck iron silk screen.

The protector that technique scheme provides has carried out security protection from plane and space to the tunnel portal explosion being close to existing buildings or structures, not only control the harm of tunnel portal blasting flyrock to existing buildings or structures completely, and also ensure that the safety of life and property of the people, completely avoid the phenomenon of constructing and disturbing residents.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art 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 prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The plan structure schematic diagram of the protector that Fig. 1 provides for the utility model embodiment;

The protector that Fig. 2 provides for the utility model embodiment face structural representation;

The flanking support structures schematic diagram of the double-deck scaffold that Fig. 3 provides for the utility model embodiment;

The front side supports structural representation of the double-deck scaffold that Fig. 4 provides for the utility model embodiment.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

The utility model embodiment provides a kind of tunnel portal explosion three-dimensional protector being close to existing building, as shown in Figure 1, described protector comprises: be arranged on the combination flexible gun of tunnel portal by 1, described combination flexible gun is comprised by 1: the rubber big gun set gradually by 11, geotechnological layer of cloth 12, iron wire stratum reticulare 13 and waterproof lamellar 14; Described combination flexible gun is fixed on the top, top, hole of described tunnel portal and the rock mass on ground by 1 by iron wire; The rubber big gun hung at described tunnel portal, by 11, can prevent larger slungshot to fly out hole; That then hangs is combined to form three layers of flexible protective structure by geotechnological layer of cloth 12, iron wire stratum reticulare 13 and waterproof lamellar 14, can prevent little slungshot from flying out; Described waterproof lamellar 14 is also provided with aperture, and the aperture of described aperture is 1-3cm, and pitch of holes is 10-20cm; Preferably, aperture is 2cm, and pitch of holes is 15cm; The energy that aperture effectively can discharge Blasting shock wave is set on described waterproof lamellar 14 like this, prevents Blasting shock wave from cannot discharge and damage combination flexible gun by 1.

Shown in figure 2, described combination flexible gun is fixed on the rock mass on hole ground on by the iron wire 00 of 2 meters long by anchoring pile 01 by the left and right pin in below of 1, and 2 meters, left and right iron wire makes combination flexible gun can freely-movable but be unlikely to as lifting curtain, combination flexible gun to be started the effect losing big gun quilt by Blasting shock wave by 1.By structure, the combinations thereof flexible gun that the utility model provides both ensure that this flexible protective structure was to the protection of slungshot, the high temperature produced when in turn ensure that Tunnel Blasting, the release of gases at high pressure.

As shown in Figure 1, described protector also comprises: outside hole, (described certain distance can obtain according to orographic condition for the left and right sides and front, hole certain distance, there is no concrete formula and value) in, set up the double-deck scaffold 2 of 50cm × 50cm, described double-deck scaffold 2 is fixed on the ground by anchor 3; Its height H 1 highly exceeding hole absolute altitude is not less than 1m, and array pitch is 50cm.In order to ensure this structure self stability, diagonal brace 21 and bridging 22 should be set up according to actual conditions, can with reference to shown in figure 3 and Fig. 4, Fig. 3 is the side view of double-deck scaffold 2, Fig. 4 is the front view of double-deck scaffold 2, diagonal brace 21 and the bridging 22 of erection can ensure that scaffold root and ground are connected firmly and stability, often arrange and scaffold all installs one deck bamboo chip 23 (these bamboo chips can prevent from slungshot from passing scaffold flying out, surrounding environment and personnel are damaged), the scaffold in front, hole is installed can the gate 4 of free switch, bamboo chip also should be installed in this gate 4.So, combination flexible gun is just defined planar protective system by 1 and double-deck scaffold 2 part, ensure that existing buildings or structures and the security of personnel in blast working process, as shown in Figure 3.

As shown in Figure 1, the top of described double-deck scaffold 2 is provided with the double-deck iron silk screen 5 of 50cm × 50cm that a use No. 8 iron wires are formed, and the top of the described double-deck scaffold set up is coupled together; Lay one deck splash guard (not shown) in the middle of the two-layer wire netting of described double-deck iron silk screen 5, so both ensure that the high-altitude of slungshot flies out, in turn ensure that the brightness of tunnel portal construction on daytime.

In sum, from plane and space, the tunnel portal blast working to contiguous existing buildings or structures has carried out security protection to this cover protector, ensure that construction safety, ensure that people's property is not suffered a loss.

The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.

Claims (2)

1. be close to a tunnel portal explosion three-dimensional protector for existing building, it is characterized in that, comprising:

Be arranged on the combination flexible gun quilt of tunnel portal, described combination flexible gun is included: the rubber big gun quilt set gradually, geotechnological layer of cloth, iron wire stratum reticulare and waterproof lamellar; Described combination flexible gun is fixed on the rock mass of the top, top, hole of described tunnel portal and ground by iron wire;

In the outer left and right sides of described tunnel portal and front, hole certain distance, arrange the double-deck scaffold of 50cm × 50cm, described double-deck scaffold is fixed on the ground by anchor; The absolute altitude that described double-deck scaffold height exceeds described tunnel portal is not less than 1m, and array pitch is 50cm; Described double-deck scaffold sets up diagonal brace and bridging; Often arrange on scaffold and one deck bamboo chip is all installed, the scaffold in front, hole arranges the gate of free switch, described gate is also provided with bamboo chip;

The top of described double-deck scaffold is provided with the double-deck iron silk screen of 50cm × 50cm that a use No. 8 iron wires are formed, and the top of the described double-deck scaffold set up is coupled together; One deck splash guard is laid in the middle of the two-layer wire netting of described double-deck iron silk screen.

2. protector according to claim 1, is characterized in that, described waterproof lamellar is also provided with aperture, and the aperture of described aperture is 1-3cm, and pitch of holes is 10-20cm.