CN205530280U - Novel prefabricated two walls unification foundation ditch enclosure system - Google Patents

Abstract

The utility model relates to a novel prefabricated two-wall-in-one foundation pit enclosure system. The novel prefabricated two-wall-in-one foundation pit enclosure system consists of an enclosure structure and a support system. The enclosure structure is composed of new-type water-stop centrifugal piles, which are connected by means of butt-connecting guide grooves and setting concrete top beams on top of the piles; The system is connected with a new type of water-stop centrifugal pile through a pre-embedded steel connector. Compared with the existing foundation pit enclosure system of pipe gallery, the utility model has the advantages of short construction period, no pollution, low noise, strong enclosure structure stability, low engineering cost, and small impact on the surrounding environment.

Description

A new type of prefabricated two-wall-in-one foundation pit enclosure system

technical field

The utility model relates to a novel prefabricated two-wall-in-one foundation pit enclosure system, which is mainly used in the fields of foundation pit enclosure and prevention of earth displacement of municipal buildings such as pipe corridors.

Background technique

Land resources in modern cities are extremely scarce, and the construction of municipal infrastructure is increasingly restricted by land resources, municipal planning, urban landscape and environmental protection. It is imminent to comprehensively place various cables and pipelines. The underground municipal comprehensive pipe corridor, also known as the common ditch, is to set up underground trenches for various public utilities to place cables and pipes. Underground comprehensive pipe gallery is a relatively advanced form of infrastructure pipe network layout in the world at present, it is the trend and trend of urban construction and urban development, and it is an effective means to make full use of underground space. At present, there are disadvantages such as poor economy, low construction efficiency, and large environmental impact in the construction of urban comprehensive pipe gallery foundation pit enclosure. In view of the above disadvantages, the utility model relates to a new type of prefabricated two-wall-in-one foundation pit enclosure system with good economy, high construction efficiency and little environmental impact and its reverse construction method. First, the support system and the roof are integrated, which is economical; the enclosure structure is prefabricated, and the construction efficiency is high; the new type of water-stop centrifugal pile has low soil extrusion and low environmental impact.

Utility model content

The purpose of this utility model is to provide a foundation pit with large bearing capacity, good water-proof effect, convenient construction, high efficiency, combination of enclosure structure and building exterior wall, support system and building roof, and low cost Enclosure system and its construction method.

The purpose of this utility model can be achieved through the following technical solutions:

A new type of prefabricated two-wall-in-one foundation pit enclosure system. The novel prefabricated two-wall-in-one foundation pit enclosure system consists of an enclosure structure and a support system. The enclosure structure is composed of a new type of water-stop centrifugal pile. The new water-stop centrifugal piles are connected by connecting guide grooves and setting concrete top beams on the top of the piles. The support system adopts the construction roof slab poured in intervals. connect.

The novel water-stop centrifugal pile is a prefabricated pile.

The guide groove of the novel water-stop centrifugal pile adopts grouting to ensure the water-stop of the enclosure system.

The enclosure structure doubles as a building exterior wall, and the building roof doubles as a support system, that is, the new water-stop centrifugal pile doubles as a building exterior wall, and the building roof doubles as a support system.

The new type of water-stop centrifugal pile pre-embeds steel bar connectors at the positions of the building floor and the building roof.

Compared with the existing pipe gallery type foundation pit enclosure system and construction method, the utility model has the following advantages:

1. The two walls of the enclosure and the building structure are integrated into one, the support system and the roof are integrated into one, the enclosure structure and the building structure are perfectly combined, and the economic benefits are good.

2. The new type of water-stop centrifugal pile is a prefabricated pile, which has high construction efficiency and a short construction period without redundant maintenance time; the new type of water-stop centrifugal pile has low soil extrusion and low environmental impact.

Description of drawings

Figure 1 is a schematic diagram of foundation pit enclosure

1 New type water-stop centrifugal pile 2 Building roof 3 Lined wall 4 Building floor 5 Rebar connector 6 Concrete pressure beam

Figure 2 is the form of enclosure structure connection

6 Concrete pressure beam 7 Guide groove

Figure 3 is the side pile machine

8 Side pile driver 9 Static pressure device

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the utility model, and the detailed implementation and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.

Example

As shown in Figure 1, a new type of prefabricated two-wall-in-one foundation pit enclosure system and its reverse method, the new foundation pit enclosure system consists of an enclosure structure combined with a support system. The enclosure structure is composed of a new type of water-stop centrifugal pile 1, the new type of water-stop centrifugal pile 1 is connected by a guide groove 7, and a concrete top beam 6 is arranged on the top of the pile, as shown in Figure 2; the support system adopts The building roof 2 is poured at intervals to ensure the stability of the foundation pit; the building roof 2 is connected to the new water-stop centrifugal pile 1 through the embedded steel bar connector 5 .

A new type of prefabricated two-wall-in-one foundation pit enclosure system and its reverse method involved in the utility model are constructed by using a side pile machine 8, and the specific steps are as follows:

1) Level up the construction site and release actual samples according to the construction drawings;

2) After the new type of water-stop centrifugal pile 1 enters the site for acceptance, it is stacked to a position convenient for construction;

3) Remotely control the side pile machine 8 to move to the construction stakeout position, start the power assembly, and the side pile machine boom lifts the new water-stop centrifugal pile 1 in step 2) to the side pile machine static pressure device 9;

4) Start the static pressure device 9 of the side pile machine by remote control, and press the new water-stop centrifugal pile 1 to the design elevation;

5) Remotely control the displacement of the side pile machine 8, rotate the boom of the side pile machine, hoist the new water-stop centrifugal pile 1 in step 2) to the static pressure device 9 of the side pile machine, and align the pile guide groove 7 with the constructed pile body The guide groove 7 is docked, and the static pressure device 9 of the side pile machine is activated by remote control to press the pile to the design elevation;

6) Repeat step 5 until the construction of the new water-stop centrifugal pile 1 of the entire foundation pit enclosure structure is completed;

7) Carry out the construction of the new type water-stop centrifugal pile 1 pile top concrete pressure beam 6;

8) After the concrete capping beam 6 reaches the required strength, the foundation pit is excavated until the pre-embedded steel bar connector 5 is completely exposed, and the construction of the building roof 2 is carried out in intervals, and the length of the intervals is determined according to design calculations;

9) After the strength of the building roof 2 meets the requirements, excavate until the pre-buried steel bar connector 5 at the bottom of the pit is completely exposed;

10) Carry out the construction of building floor 4 steel bar binding and concrete pouring;

11) Carry out the construction of the building roof 2 at the lining wall 3 and the remaining partitions upward;

12) After all the construction is completed, backfill to the floor elevation.

Claims (5)

1. A new type of prefabricated two-wall-in-one foundation pit enclosure system, which is composed of an enclosure structure and a support system, and the enclosure structure is composed of a new type of water-stop centrifugal pile, The new water-stop centrifugal piles are connected by connecting guide grooves and setting concrete top beams on the top of the piles; Centrifugal pile connection. 2. A new type of prefabricated two-wall-in-one foundation pit enclosure system according to claim 1, characterized in that the new type of water-stop centrifugal pile is a prefabricated pile. 3. A new type of prefabricated two-wall-in-one foundation pit enclosure system according to claim 1, characterized in that the guide groove of the novel water-stop centrifugal pile adopts grouting to ensure the water-stop of the enclosure system. 4. A new type of prefabricated two-wall-in-one foundation pit enclosure system according to claim 1, characterized in that the enclosure structure doubles as a building exterior wall, and the building roof doubles as a support system, that is, a new type of water-stop centrifugal pile It doubles as the exterior wall of the building, and the roof of the building doubles as the supporting system. 5. A new type of prefabricated two-wall-in-one foundation pit enclosure system according to claim 1, characterized in that, said new water-stop centrifugal piles pre-embed steel bar connectors at the positions of the building floor and the building roof.