Unlock instant, AI-driven research and patent intelligence for your innovation.

Cast-in-place pile structure based on pebble stratum and construction method thereof

A technology of cast-in-place piles and strata, which is applied in the direction of foundation structure engineering, excavation, and sheet pile walls, etc. It can solve problems such as collapsed holes, scraping between steel cages and hole walls, deformation of steel cages, etc., and achieve the effect of reducing the impact

Active Publication Date: 2022-08-09
GEOLOGICAL INVESTIGATION & FOUNDATION CONSTR CO OF HUBEI PROVINCE
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

③In the process of lowering the reinforcement cage, the verticality is not maintained or the reinforcement cage is deformed, so that the reinforcement cage and the hole wall are scratched and the hole is collapsed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cast-in-place pile structure based on pebble stratum and construction method thereof
  • Cast-in-place pile structure based on pebble stratum and construction method thereof
  • Cast-in-place pile structure based on pebble stratum and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like Figure 1-3As shown in the figure, a cast-in-place pile structure based on pebble stratum proposed by the present invention includes a square pit 1 and a mechanical drill hole 2 arranged at the bottom of the square pit 1. The square pit 1 is excavated by engineering machinery, and the square pit 1 is excavated by mechanical drilling equipment. To realize the drilling forming of the mechanical drilling hole 2 , the base surface of the square pit 1 is square, and the width of the square pit 1 can be 1.5-2.5 times the diameter of the mechanical drilling hole 2 . The bottom of the square pit 1 is provided with a distribution steel skeleton 3, and the inside of the mechanical drilling 2 is provided with a steel grid isolation pipe 5 extending to the interior of the square pit 1, and the lower end of the steel grid isolation pipe 5 is stable with the bottom of the mechanical drilling 2. placed, and there is a certain gap between the hole diameter of the mechanical drilli...

Embodiment 2

[0035] like Figure 4 As shown, a construction method of a cast-in-place pile structure based on a pebble stratum proposed by the present invention includes the following steps:

[0036] Step 1: According to the construction location, the square pit 1 is formed by mechanical excavation, and then the mechanical hole 2 is formed by turning the hole with the construction machinery;

[0037] Step 2: The top of the square pit 1 can be leveled by manual excavation, and the excess soil can be cleaned and sent out from the bottom of the square pit 1; The distributed steel frame 3 is laid on the side, and the blocking ring 33 in the distributed steel frame 3 is coaxial with the mechanical drill hole 2. The blocking ring 33 is sealed with the bottom of the mechanical drill hole 2 by manual pressing, and the platform concrete is poured. 4. Until the steel skeleton 3 is not distributed to form a stable platform, the subsequent steps are implemented after the platform concrete 4 is comple...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile structure based on a pebble stratum and a construction method thereof. According to the technical scheme, the device comprises a square pit and a mechanical drill hole formed in the bottom of the square pit, a steel reinforcement distribution framework is arranged at the bottom of the square pit, a steel grid isolation pipe extending into the square pit is arranged in the mechanical drill hole, and the steel grid isolation pipe is sleeved with the steel reinforcement distribution framework used for axially fixing the steel grid isolation pipe; platform concrete used for burying and distributing the steel reinforcement framework is poured at the bottom of the mechanical drill hole. The cast-in-place pile is cast step by step, the hole wall collapse phenomenon easily caused by high-depth drilling in an existing construction scheme is avoided, meanwhile, the bearing area is increased to improve the stability, the gap problem caused by secondary pouring is solved through the grouting pipe during secondary pouring, the integrity is improved, earth cutting and backfilling can be carried out, and the construction efficiency is improved. The use amount of concrete is reduced.

Description

technical field [0001] The invention relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile structure based on pebble strata and a construction method thereof. Background technique [0002] Pebble is mainly composed of rock fragments with different particle sizes, irregular shapes and different degrees of weathering or primary minerals such as quartz and feldspar. , The characteristics of strong water permeability and high shear strength. It is precisely because the pebble soil particle structure is loose, the particle size is uneven, the cementation is poor, the impact force is strong and the frictional resistance is large when drilling. , buried drilling, hole wall collapse, slurry leakage, and individual drilling difficulties. [0003] The current traditional construction method still adopts the direct drilling method. The main disadvantages of this construction method are as follows: 1. During the drilling process, due ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/34E02D5/38E02D5/48E02D15/04E02D17/08
CPCE02D5/34E02D5/38E02D5/48E02D15/04E02D17/08E02D2300/0029E02D2250/003
Inventor 韩剑东朱明鑫刘晶葛贤明刘文雅夏国瑞郭崧
Owner GEOLOGICAL INVESTIGATION & FOUNDATION CONSTR CO OF HUBEI PROVINCE