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How to design the offshore engineering and guarantee the engineering structures safe operation is still a challenge and problem to engineering professionals.
Simplified calculation model of seismic analysis of sea ice, a pier and water Ice load is one of the important loads of pier structure design in icy water and the influence of ice load on seismic responses of bridge pier is remarkable.
Dynamic response analysis of the bridge pier involves structure-ice-water interaction, and the simplified mass-spring model is an efficient calculation model to analyze the seismic responses of the bridge pier surrounded by sea ice.
Fig.3 The ice force model Fig.4 The relationship of penetration depth and ice thickness Nonlinear seismic response analysis of bridge pier A single-column pier of a simply-supported RC bridge locates in icy water.
The depth of water is 14m and the depth of the pier is 26m.

Is the megadune sustained and developed by lake water, or the development of megadune cause the formation of the lakes?
Water has special significance to the desert area and the development of water recreation has great limitations.
But, taking the water amusement as auxiliary means has a good effect. ⑥Agriculture sightseeing projects are weakened.
Desert expand camp is mainly about desert exploration and outward bound which combine the soft adventure with low risk and hard exploration with professional level.
Both the public and professional explorers can feel infinite pleasure.

Most professionals basically formed a consensus, The inorganic heat preservation instead of organic insulation, is only a matter of time.
And reflect water the foam concrete wall total costs only 130 yuan/m3, such as consideration because of its low density (aerated concrete 600 ~ 700 kg/m3, cast-in-place foam concrete 300 ~ 400 kg/m3,can be thinned wall, reduce the dosage of thermal insulation material, the cast-in-place foam concrete wall and lower cost, shows watering the advantage of heat preservation.
Foam concrete can adjust its obturator rate from the bibulous rate control, the general bibulous rate is about 20% ~ 25%, low water absorption rate of the product is about 8% ~ 8%, low water absorption products can reach 2% ~ 5%.
These places most in need of heat preservation, aerated concrete cannot be applied due to high water absorption.
Studies on chemical resistance of low water/cement ratio concretes[J].Cement and Concrete Research, 1985, 15（6）：969-978.

Zhang Jizhou [10] made a circulated freezing-thawing test on three rocks in two water chemistry environments (saturated distilled water, and soaked and corroded with nitric acid solution of 1%), finding the freezing-thawing damage to rocks was more much more severe under the acid condition than that under the pure water chemistry condition.
Testing study on macroscopic mechanics effect of chemical action of water on rocks [J].
[16] The Professional Standards Compilation Group of People’s Republic of China.
SL 264-2001 Specifications for rock tests in water conservancy and application[S].
Beijing: China Water Power Press, 2001.

The initial preparatory stage of this process without appropriate professional relationship to it may have a mixed effect to the quality of further work, the analysis of the dynamics of deformation characteristics and the forecasting of their development stages.Therefore, it is the responsibility of surveyors, designers, and teachers to inform all construction organizations the need to compile geodetic works for the unique facilities constructions with mandatory indication of the types and methods of their inspection at the stage of assembly, installation and operation for complete analysis and prediction of deformation processes.
In connection with the increased number of accidents at similar facilities (the water park in Moscow in 2004, the shopping center "Michurinsky" in Moscow in 2011, etc.) it is necessary not only to monitor the technical condition of such structures more carefully, but also study each stage more thoroughly erection and geodetic support of the structuresconstruction.

In order to avoid sinking the ship, its driver decided to run aground in order to intervene to evacuate water from the engine room and plug the water hole.
Water hole board port CM, view from outside [10] Fig. 9.
The operational and professional intervention of the crew led to avoiding major pollution, given the amount of cargo transported and the impact it would have had in case of a sinking. [5] Fig. 10.
It must be possible to keep oil waters from exploitation on board.
The consequences of water pollution are felt not only at the level of the flowing waters where the discharge of pollutants takes place, but also hundreds of kilometers from the place of leakage, because the waters of rivers, rivers can infest large areas, finally reaching sea level.

Because of its affinity for water, lithium hydride is handled under ultra-dry conditions, in argon or nitrogen filled glove boxes.
A major concern is the exothermic reaction with water, Eq. 1.
All lithium hydride development is undertaken by professional chemists and larger shapes produced by less qualified staff who undergo regular training.
Here a vigorous reaction with crystalline material and water occurs producing very hot caustic solution.
Self-combustion of hydrogen is possible with fine powder and water and this can result in a spread of material.

Water damage of asphalt concrete pavements has been one of the major distresses in highway engineering.
Introduction Water damage of hot mixture asphalt (HMA) is a leading mode of premature distress of asphalt pavements.
Bleeding, cracking, rutting and raveling are typical distress types of asphalt concrete (AC) pavements and the existence of water consequentially accelerates the initiation and development of all those types of distress, which is usually called the water damage of asphalt pavements [1].
As the value of compact degree is lower, the value of porosity becomes higher and as a result, water enters easily in road surface structure.
CRC Press, 1996 [5] The Professional Standard of China.Technical Specification for Construction of Highway Asphalt Pavements(JTG F40-2004).

Importance of Physico-Chemical Methods in evaluating the State of building Structures and design of their Redevelopment Amos Dufka 1, a, Lenka Mészárosová 2,b , Jana Kosíková 3,c (1,2,3) Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 95, 602 00 Brno, Czech Republic adufka.a@fce.vutbr.cz, bmeszarosova.l@fce.vutbr.cz, ckosikova.j@fce.vutbr.cz Keywords: building structures, redevelopment, physico-chemical methods Abstract: The experience in building practice proves that in assessing and evaluating the state of reinforced concrete structures, also professional companies place a clear emphasis mainly on determining the strength characteristics of concrete, assessing the rate of corrosion and the distribution of reinforcements in assessed elements.
In the case of evaluating reinforced concrete structure, it is advantageous to apply procedures declared in professional literature, for example in TP SSBK III [1] or in [4] etc.
Examples of using physico-chemical analyses in building practice The importance of physico-chemical analyses in evaluating the state or life of building structures or design of their redevelopment can be illustrated on the following examples: 3.1 Evaluating the rate of degradation of concrete and predicting its further life Waters with a high content of sulphates cause the so-called type II or III corrosion in reinforced concrete structures.
From the view of changes in the physico-mechanical parameters of concrete based on Portland cement occurring due to the action of an increased temperature, particularly the following reactions are substantial: In the temperature range between 100°C and 200°C, the physically bound water evaporates from the concrete structure.

The results will be very useful to the concrete professional dealing with chloride-ion penetration.
In this test, the water binder ratio is equal to 0.45.
Table 1 Concrete mix proportions Concrete Cement [kg/m3] Sand [kg/m3] Crushed stone [kg/m3] Water [kg/m3] Steel fiber [kg/m3] Water reducer [%] PC 367 765 1146 165 0 0.6 SFC-0.5 367 735 1102 165 39 0.6 SFC-1 367 733 1100 165 78 0.6 SFC-1.5 367 718 1066 165 117 0.6 SFC-2 367 702 1053 165 156 0.6 Test Method.