Earthquake-resistant economic caisson wharf and construction method thereof

An economical caisson wharf technology, which is applied in the earthquake-resistant economical caisson wharf and its construction field, can solve the problems of site occupation, environmental pollution, etc., and achieve the effects of reducing soil pressure, improving stability, and reducing project costs

Pending Publication Date: 2019-09-27
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As a by-product of the modern metallurgical industry, waste steel slag has a national annual output of more than 20 million tons. If it is not effectively utilized, it will be piled up in large quantities, occupying space and polluting the environment.

Method used

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  • Earthquake-resistant economic caisson wharf and construction method thereof
  • Earthquake-resistant economic caisson wharf and construction method thereof
  • Earthquake-resistant economic caisson wharf and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Prefabricate the caisson main body 2, do a good job in the relevant formwork calculation and formwork reinforcement work, carry out layered pouring for the larger caisson main body 2, and prepare the corresponding construction plan;

[0043] (2) Excavate foundation trenches by means of grab boats, cutter suction boats, drag suction boats, etc.;

[0044] (3) Fixed forming lead wire cage 9, the steel slag that particle diameter is 30mm and length is 40mm, and the scrap tire fragment that width is 30mm mixes by mass ratio 1: 9, and fills hot-dip galvanized lead wire cage 9, forms lead wire cage 9 fixed hybrid structure;

[0045] (4) The excavated foundation trench shall be inspected by means of sea survey, and a layer of 10cm thick sand shall be laid flat after passing the inspection. On the foundation bed of the wharf, a seismic isolation foundation 1 is formed;

[0046] (5) After the installation of the seismic isolation foundation 1 is completed, semi-submerged ba...

Embodiment 2

[0053] (1) Prefabricate the caisson main body 2, do a good job in the relevant formwork calculation and formwork reinforcement work, carry out layered pouring for the larger caisson main body 2, and prepare the corresponding construction plan;

[0054] (2) The reef blasting ship is used to blast the reef, and then the grab ship is used to excavate the foundation trench;

[0055] (3) Fixedly form the lead wire cage 9, the steel slag with a particle diameter of 50 mm and the length of 100 mm, the waste tire fragments with a width of 50 mm are mixed in a mass ratio of 3:9, and the hot-dip galvanized lead wire cage 9 is filled to form the lead wire cage 9 fixed hybrid structure;

[0056] (4) Check the excavated foundation trench by spotting water, spread a layer of sand with a thickness of 12cm after the acceptance, and place the mixed structure fixed by the lead wire cage 9 section by section by hoisting after leveling On the foundation bed of the wharf, a seismic isolation foun...

Embodiment 3

[0064] (1) Prefabricate the caisson main body 2, do a good job in the relevant formwork calculation and formwork reinforcement work, carry out layered pouring for the larger caisson main body 2, and prepare the corresponding construction plan;

[0065] (2) Excavate foundation trenches by means of grab boats, cutter suction boats, drag suction boats, etc.;

[0066] (3) fixed forming lead wire cage 9, the steel slag that particle diameter is 40mm and length is 70mm, and the scrap tire fragment that width is 40mm mixes by mass ratio 3: 7, and fills hot-dip galvanized lead wire cage 9, forms lead wire cage 9 fixed hybrid structure;

[0067] (4) The excavated foundation trench is inspected by means of sea survey, and a layer of 11cm-thick sand is spread flat after passing the inspection. On the foundation bed of the wharf, a seismic isolation foundation 1 is formed;

[0068] (5) After the installation of the seismic isolation foundation 1 is completed, semi-submerged barges and t...

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Abstract

The invention discloses an earthquake-resistant economic caisson wharf and a construction method thereof. The caisson wharf comprises a vibration isolation foundation, a caisson main body, a superstructure, a pressure reducing fill body, a pressure reducing backfill body and a concrete slab. The vibration isolation foundation is provided with the caisson main body, steel slag fragments are filled in the caisson main body, and the superstructure is arranged on the top of the caisson main body, the pressure reducing fill body is arranged on the side, near a shore, of the caisson main body, the pressure reducing backfill body is arranged between the pressure reducing fill body and undisturbed soil, the concrete slab is arranged above the pressure reducing backfill body, and the concrete slab is connected to the superstructure and the undisturbed soil respectively. The construction method includes the steps of the prefabrication of the caisson main body, the excavation of a foundation groove, the prefabrication of the vibration isolation foundation, the construction of the vibration isolation foundation, the transportation and installation of the caisson main body, the backfilling of the steel slag fragments of the caisson main body, the construction of the pressure reducing fill body, the construction of the pressure reducing backfill body, the construction of the concrete slab and the construction of the superstructure. The earthquake-resistant economic caisson wharf and construction method thereof reduces the engineering cost, has economic and environmental benefits, and solves the problems of sand and stone shortage day by day, and the recycling of waste steel slag fragments and waste tires.

Description

technical field [0001] The invention relates to the technical field of port wharf engineering, in particular to an earthquake-resistant economical caisson wharf and a construction method thereof. Background technique [0002] The caisson wharf structure is a common structural form of hydraulic structures in port engineering, and its structure is usually composed of a wall, a foundation bed and a filler behind the wall. It has strong vitality, and its construction technology has been continuously improved and developed. Its construction methods mainly include foundation trench excavation, foundation bed riprap, caisson installation, caisson backfill, pier rear prism backfill, etc. [0003] The traditional caisson wharf structure requires a large amount of sand and gravel backfilling, and with the continuous development of the domestic construction industry, the market demand for sand and gravel is increasing, which leads to rising sand and gravel prices, and even sand and gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/06E02D23/00
CPCE02B3/068E02D23/00
Inventor 王丽艳陶云翔巩文雪闫家涛王炳辉徐浩青侯贺营
Owner JIANGSU UNIV OF SCI & TECH
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