CN210827483U

CN210827483U - Deep basal pit secondary excavation and supporting construction structure

Info

Publication number: CN210827483U
Application number: CN201921693060.0U
Authority: CN
Inventors: 魏玉伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-23
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a deep basal pit secondary excavation and supporting construction structure, include: the utility model discloses a concrete foundation soil layer, including the reinforcing rib, the slope lower part is equipped with the support, the foundation soil layer is equipped with one deck foundation ditch and two layers of foundation ditch by last one deck foundation ditch and the next time, the swash plate department of one deck foundation ditch installs the protection swash plate and protects the swash plate lower part and be equipped with water drainage tank, the junction of one deck foundation ditch and two layers of foundation ditch is equipped with slope and slope internally mounted has the strengthening rib, intercrossing forms network structure between the strengthening rib, it evenly fills inside strengthening rib network structure to be equipped with concrete layer and concrete layer between the strengthening rib, the slope lower part is equipped with. The utility model discloses a set up protection swash plate and guardrail in the one deck foundation ditch to increase the stability of one deck foundation ditch, set up support cooperation connector and bracing piece simultaneously in the supporting soil layer of secondary foundation ditch, increased the support ability of two layers of foundation ditches, improve the security.

Description

Deep basal pit secondary excavation and supporting construction structure

Technical Field

The utility model relates to a building engineering technical field, more specifically are a deep basal pit secondary excavation and supporting construction structure.

Background

When the building foundation pit is constructed, in order to ensure the construction safety and prevent the occurrence of collapse accidents, support measures must be taken for the excavated building foundation pit. The design and construction of the building foundation pit support should comprehensively consider factors such as engineering geology and hydrogeology conditions, the type of the foundation pit, the excavation depth of the foundation pit, drainage conditions, the requirement of the peripheral environment on the displacement of the side wall of the foundation pit, the peripheral load of the foundation pit, the construction season, the service life of the support structure and the like, and reasonable design, elaborate construction and economic safety are achieved.

At present, the construction of deep basal pit needs to use supporting construction to support among the building engineering, but current supporting construction has following problem when using: 1. the instability probability of the supporting structure in the foundation pit is higher and higher along with the increase of the depth of the foundation pit of the existing supporting structure, so that the supporting structure collapses; 2. the existing supporting structure is mostly rigid support, cannot be adjusted according to on-site requirements, and is complex in construction and installation. Therefore, a new technical solution needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a deep basal pit secondary excavation and supporting construction structure, this supporting construction structure is through setting up protection swash plate and guardrail in the one deck foundation ditch to increase the stability of one deck foundation ditch, set up support cooperation connector and bracing piece simultaneously in the supporting soil layer of secondary foundation ditch, increased the support ability of two layers of foundation ditch, improve the security, satisfy the practical application demand.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a deep basal pit secondary excavation and supporting construction structures, includes: the foundation soil layer is provided with a first layer of foundation pit and a second layer of foundation pit from top to bottom, a protective inclined plate is arranged at the inclined plate of the first layer of foundation pit, a drainage groove is arranged at the lower part of the protective inclined plate, a slope is arranged at the joint of the first layer of foundation pit and the second layer of foundation pit, reinforcing ribs are arranged in the slope and are crossed with each other to form a net structure, a concrete layer is arranged between the reinforcing ribs and is uniformly filled in the reinforcing rib net structure, a support is arranged at the lower part of the slope and is fixedly connected with the support through bolts, the support is fixedly connected with the support through bolts, a support rod is arranged at the inner side of the support and is provided with a connector in the middle, a sealing cavity is arranged in the connector, a sliding block is arranged in the sealing cavity, the sliding block is fixedly connected with the support rod, a sealing ring is arranged, support soil layer upper portion and be equipped with the concrete sheet pile, the concrete sheet pile is provided with a plurality of groups and concrete sheet pile left side and is equipped with the lug, concrete sheet pile right side is equipped with mutual gomphosis between recess and the lug and recess.

As a preferred embodiment of the utility model, the bracing piece is pegged graft and is equipped with fixing bolt inside the inside mounting hole of support and support both sides, fixing bolt runs through and contacts each other between support and the bracing piece.

As a preferred embodiment of the utility model, slope upper portion is equipped with guardrail and guardrail rigid coupling inside the foundation soil layer, concrete sheet pile side is equipped with stake and pegs graft in the inside stake hole of supporting soil layer.

As an optimal implementation manner of the utility model, concrete sheet pile side both sides are equipped with inside expansion bolts that are equipped with reinforcing plate and reinforcing plate, expansion bolts runs through reinforcing plate and concrete sheet pile fixed connection.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the utility model discloses a set up protection swash plate and guardrail in the one deck foundation ditch to increase the stability of one deck foundation ditch, set up support cooperation connector and bracing piece simultaneously in the supporting soil layer of secondary foundation ditch, increased the support ability of two layers of foundation ditches, improve the security.

(2) The utility model discloses install the strengthening rib in the slope of one deck foundation ditch and two layers of foundation ditch and guarantee the intensity on slope, increase concrete layer simultaneously and improve stability, cooperation concrete sheet pile uses, improves the holistic structural strength of supporting construction.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the connector of the present invention;

FIG. 3 is a schematic view of the internal structure of the slope of the present invention;

fig. 4 is the schematic diagram of the concrete sheet pile structure of the present invention.

In the figure, a foundation soil layer-1, a first-layer foundation pit-2, a second-layer foundation pit-3, a slope-4, a protective inclined plate-5, a guardrail-6, a drainage channel-7, a pile-8, a concrete sheet pile-9, a supporting soil layer-10, a support-11, a connector-12, a fixing bolt-13, a support rod-14, a sealing ring-15, a sealing cavity-16, a sliding block-17, a concrete layer-18, a reinforcing rib-19, a bump-20, a groove-21, a reinforcing plate-22 and an expansion bolt-23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a deep basal pit secondary excavation and supporting construction structures, includes: the foundation soil layer 1 is provided with a first layer foundation pit 2 and a second layer foundation pit 3 from top to bottom, a protective inclined plate 5 is arranged at the inclined plate of the first layer foundation pit 2, a drainage groove 7 is arranged at the lower part of the protective inclined plate 5, the inclined edge of the first layer foundation pit 2 is fixed by mounting the protective inclined plate 5 at the inclined edge of the first layer foundation pit 2, the strength of the inclined edge is increased, collapse is avoided, a slope 4 is arranged at the joint of the first layer foundation pit 2 and the second layer foundation pit 3, reinforcing ribs 19 are arranged inside the slope 4, the reinforcing ribs 19 are mutually crossed to form a net structure, a concrete layer 18 is arranged between the reinforcing ribs 19, the concrete layer 18 is uniformly filled inside the net structure of the reinforcing ribs 19, the slope 4 arranged at the joint of the first layer foundation pit 2 and the second layer foundation pit 3 increases the structural strength through the reinforcing ribs 19 and the concrete layer 18, subsequent construction is facilitated, and landslide is avoided, the lower part of the slope 4 is provided with a supporting soil layer 10, the inner side of the supporting soil layer 10 is provided with a support 11, the support 11 is fixedly connected with the supporting soil layer 10 through bolts, the inner side of the support 11 is provided with a support rod 14, the middle part of the support rod 14 is provided with a connector 12, the connector 12 is internally provided with a sealing cavity 16, the sealing cavity 16 is internally provided with a sliding block 17, the sliding block 17 is fixedly connected with the support rod 14, the supporting soil layer 10 is arranged inside the two-layer foundation pit 3, the support rod 14 is inserted inside the support 11, the other end of the support rod is connected with the sliding block 17 inside the connector 12, the sealing cavity 16 inside the connector 12 is in a vacuum state, the sliding block 17 is stretched through the pressure therein, the length of the support rod 14 is automatically adjusted according to the external stress condition, the use is convenient, the supporting soil layer 10 can be effectively supported, the stability of the supporting, the setting up of sealing washer 15 has increased the leakproofness in the inside sealed chamber 16 of connector 12, it is equipped with concrete sheet pile 9 to strut 10 upper portions of soil layer, concrete sheet pile 9 is provided with a plurality of groups and concrete sheet pile 9 left side and is equipped with lug 20, concrete sheet pile 9 right side is equipped with recess 21 and lug 20 between each other gomphosis, and concrete sheet pile 9 is connected through gomphosis between lug 20 and the recess 21, and it is connected closely well and is convenient for install.

Further improved, as shown in fig. 2: the bracing piece 14 is pegged graft and is equipped with fixing bolt 13 inside the inside mounting hole of support 11 and support 11 both sides, fixing bolt 13 runs through and contacts each other between support 11 and the bracing piece 14, and bracing piece 14 is pegged graft inside support 11, fixes through fixing bolt 13, conveniently installs the dismantlement to bracing piece 14.

Further improved, as shown in fig. 1: 4 upper portions on slope are equipped with 6 and 6 rigid couplings of guardrail inside foundation soil layer 1, concrete sheet pile 9 side is equipped with stake 8 and pegs graft in the stake hole of strutting soil layer 10 inside, and the setting of guardrail 6 can block by the earth landslide of a small amount, increases its security, and stake 8 is secondary protective structure simultaneously, has increased the stability of whole protection.

Further improved, as shown in fig. 4: concrete sheet pile 9 side both sides are equipped with reinforcing plate 22 and the inside expansion bolts 23 that is equipped with of reinforcing plate 22, expansion bolts 23 runs through reinforcing plate 22 and concrete sheet pile 9 fixed connection, and reinforcing plate 22 is installed in concrete sheet pile 9 side, fixes through the bolt of expansion bolts 23, has increased the connection stability between the concrete sheet pile 9.

The utility model discloses an install protection swash plate 5 in the hypotenuse department of one deck foundation ditch 2, fix the hypotenuse of one deck foundation ditch 2, increase its intensity, avoid taking place to collapse, slope 4 that the junction of one deck foundation ditch 2 and two layers of foundation ditch 3 set up, increase its structural strength through strengthening rib 19 and concrete layer 18, make things convenient for the follow-up construction, avoid taking place the condition of landslide simultaneously, supporting soil layer 10 sets up in two layers of foundation ditch 3, bracing piece 14 pegs graft in support 11 inside, the other end is connected with sliding block 17 inside connector 12, sealed chamber 16 inside connector 12 is the vacuum state, sliding block 17 is through the pressure expansion therein, adjust the length of bracing piece 14 by oneself according to the external stress condition, high durability and can effectively support supporting soil layer 10, increase its stability, the setting of sealing washer 15 has increased the leakproofness of sealed chamber 16 inside connector 12, the concrete sheet pile 9 is connected by embedding the convex blocks 20 and the concave grooves 21, and the connection tightness is good and the installation is convenient.

The product protected by the scheme is put into practical production and application at present, and particularly achieves certain success in the application field of building engineering, so that the technical scheme of the product is obviously proved to be beneficial, meets social requirements, and is suitable for batch production and popularization and use.

Finally, it should be noted that: 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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a deep basal pit secondary excavation and supporting construction structure which characterized in that: the method comprises the following steps: foundation soil layer (1), foundation soil layer (1) is by last one deck foundation ditch (2) and two layers of foundation ditch (3) of once being equipped with down, the swash plate department of one deck foundation ditch (2) installs protection swash plate (5) and protection swash plate (5) lower part is equipped with water drainage tank (7), the junction of one deck foundation ditch (2) and two layers of foundation ditch (3) is equipped with slope (4) and slope (4) internally mounted has strengthening rib (19), intercrossing forms network structure between strengthening rib (19), be equipped with between strengthening rib (19) concrete layer (18) and evenly fill inside strengthening rib (19) network structure, slope (4) lower part is equipped with and struts soil layer (10) inboard and is equipped with support (11), support (11) are through bolt and soil layer (10) fixed connection, support (11) inboard is equipped with bracing piece (14) and bracing piece (14) middle part and is equipped with connector (12) The connector is characterized in that a sealing cavity (16) and a sliding block (17) are arranged inside the sealing cavity (16) inside the connector (12), the sliding block (17) is fixedly connected with a support rod (14), a sealing ring (15) and a sealing ring (15) are arranged outside the connector (12) and sleeved on a connecting surface and are in threaded connection with the connecting surface, a concrete sheet pile (9) is arranged on the upper portion of a supporting soil layer (10), a plurality of groups of concrete sheet piles (9) are arranged on the left of the concrete sheet piles (9), and a convex block (20) is arranged on the right of each concrete sheet pile (9) and is embedded between a groove (21) and the convex block (20).

2. The secondary excavation and supporting construction structure of the deep foundation pit according to claim 1, characterized in that: the support rod (14) is inserted in the mounting hole in the support (11), fixing bolts (13) are arranged on two sides of the support (11), and the fixing bolts (13) penetrate through the support (11) and are in contact with the support rod (14).

3. The secondary excavation and supporting construction structure of the deep foundation pit according to claim 1, characterized in that: slope (4) upper portion is equipped with guardrail (6) and guardrail (6) rigid coupling inside foundation soil layer (1), concrete sheet pile (9) side is equipped with stake (8) and pegs graft in the stake hole of strutting soil layer (10) inside.

4. The secondary excavation and supporting construction structure of the deep foundation pit according to claim 3, characterized in that: concrete sheet pile (9) side both sides are equipped with reinforcing plate (22) and reinforcing plate (22) inside and are equipped with expansion bolts (23), expansion bolts (23) run through reinforcing plate (22) and concrete sheet pile (9) fixed connection.